/* Premium unified Puzzles surface; remaps the legacy puzzle engine onto the landing-page design system. */
body.workspace-puzzle-page {
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Public Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
  --void-950: var(--paper);
  --void-900: var(--surface-soft);
  --void-850: var(--surface);
  --void-800: color-mix(in srgb, var(--surface-soft) 86%, var(--accent) 14%);
  --hairline: var(--line);
  --hairline-strong: color-mix(in srgb, var(--line) 70%, var(--accent) 30%);
  --text-100: var(--ink);
  --text-400: var(--muted);
  --text-600: var(--faint);
  --accent-300: color-mix(in srgb, var(--accent) 68%, #fff);
  --accent-400: var(--accent);
  --accent-500: var(--accent-strong);
  --accent-tint: color-mix(in srgb, var(--accent) 10%, transparent);
  --accent-tint-strong: color-mix(in srgb, var(--accent) 18%, transparent);
  --amber-300: var(--accent);
  --amber-400: var(--accent-strong);
  --amber-tint: color-mix(in srgb, var(--accent) 10%, transparent);
  --red-400: var(--bad);
  --red-tint: color-mix(in srgb, var(--bad) 10%, transparent);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
}

/* MAX-155 WP04: owner-scoped in-app review reminder surface. */
.puzzle-reminder-card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 14px;
  padding: 14px 16px;
  border: 1px solid color-mix(in srgb, var(--accent, #c8a96b) 34%, var(--line));
  border-radius: 14px;
  background: color-mix(in srgb, var(--surface-soft) 88%, var(--accent, #c8a96b) 12%);
}
.puzzle-reminder-card[hidden] { display: none; }
.puzzle-reminder-copy { display: grid; gap: 3px; min-width: 0; }
.puzzle-reminder-copy strong { color: var(--ink); font-size: 0.95rem; }
.puzzle-reminder-copy > span:last-child { color: var(--muted); font-size: 0.82rem; line-height: 1.4; }
.puzzle-reminder-actions { display: flex; align-items: center; gap: 8px; flex: 0 0 auto; }
.puzzle-reminder-actions .puzzle-button { min-height: 40px; white-space: nowrap; }
.puzzle-reminder-schedule {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: 8px;
  align-items: end;
  width: 100%;
}
.puzzle-reminder-schedule label {
  display: grid;
  gap: 4px;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 700;
}
.puzzle-reminder-schedule input {
  width: 100%;
  min-width: 0;
  min-height: 40px;
  padding: 7px 9px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
}
.puzzle-reminder-schedule > .puzzle-button { grid-column: 1 / -1; }
.puzzle-reminder-preview {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 0.75rem;
}
.puzzle-reminder-card[data-reminder-state="due"] {
  border-color: color-mix(in srgb, var(--accent, #c8a96b) 62%, var(--line));
}
@media (max-width: 720px) {
  .puzzle-reminder-card { align-items: stretch; flex-direction: column; }
  .puzzle-reminder-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .puzzle-reminder-actions .puzzle-button { min-height: 44px; }
  .puzzle-reminder-schedule { grid-template-columns: 1fr 1fr; }
  .puzzle-reminder-schedule label:first-child,
  .puzzle-reminder-schedule .puzzle-button,
  .puzzle-reminder-preview { grid-column: 1 / -1; }
  .puzzle-reminder-schedule input,
  .puzzle-reminder-schedule .puzzle-button { min-height: 44px; }
}
body.workspace-puzzle-page::before { display: none; }
/* ==========================================================================
   Puzzles Master Edition shell: dock, phases, hub, zero-scroll desktop
   ========================================================================== */
:root {
  --sidebar-w: 56px;
  --header-h: 56px;
  --page-pad-y: 16px;
  --page-pad-x: clamp(16px, 2vw, 32px);
  --workspace-gap: 16px;
  --board-size: calc(100dvh - var(--header-h) - (2 * var(--page-pad-y)));
}
body.workspace-puzzle-page {
  height: 100dvh;
  overflow: hidden;
}
body.workspace-puzzle-page .app-shell {
  position: relative; z-index: 1; min-height: 0;
  height: 100dvh;
  display: flex;
  flex-direction: column;
}
body.workspace-puzzle-page .site-header { flex: 0 0 auto; }
body.workspace-puzzle-page .site-header { height: var(--header-h); min-height: var(--header-h); }
body.workspace-puzzle-page .site-header .nav-shell {
  width: 100%;
  max-width: none;
  margin: 0;
  min-height: var(--header-h);
  padding: 0 12px;
  justify-content: flex-end;
}
body.workspace-puzzle-page .site-header .header-utilities { margin-inline-start: auto; }
html[data-theme="classic"] body.workspace-puzzle-page .site-header {
  border-bottom-color: color-mix(in srgb, var(--line) 78%, transparent);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  box-shadow: 0 1px 0 color-mix(in srgb, var(--ink) 4%, transparent);
}
body.workspace-puzzle-page .workspace {
  min-width: 0;
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
}
body.workspace-puzzle-page .puzzles-workspace-main {
  width: 100%;
  max-width: none;
  margin-inline: auto;
  padding: var(--page-pad-y) var(--page-pad-x);
  display: flex;
  flex-direction: column;
  gap: var(--workspace-gap);
  min-height: 0;
  min-width: 0;
  overflow: hidden;
}
body.workspace-puzzle-page .puzzle-phase {
  flex: 1 1 auto;
  min-height: 0;
  min-width: 0;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: var(--workspace-gap);
}
body.workspace-puzzle-page .puzzle-phase[hidden] { display: none; }
body.workspace-puzzle-page .phase-title { margin: 0; color: var(--ink); font: 600 clamp(28px,3vw,40px)/1.05 var(--serif); letter-spacing: -.03em; }

/* ===== Dock sidebar (fixed 56px) ===== */
body.workspace-puzzle-page .puzzle-dock {
  flex: 0 0 var(--sidebar-w);
  width: var(--sidebar-w);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 10px 0;
  border-right: 1px solid var(--line);
  background: var(--surface);
}
body.workspace-puzzle-page .dock-nav-item {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 1px solid transparent;
  border-radius: 11px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
body.workspace-puzzle-page .dock-nav-item svg { width: 20px; height: 20px; }
body.workspace-puzzle-page .dock-nav-item:hover { color: var(--ink); background: var(--surface-soft); }
body.workspace-puzzle-page .dock-nav-item:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
body.workspace-puzzle-page .dock-nav-item.is-active { border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); background: var(--accent-soft); color: var(--accent-strong); }
body.workspace-puzzle-page .dock-spacer { flex: 1 1 auto; }

/* ===== Phase A: Master Hub ===== */
body.workspace-puzzle-page .hub-layout {
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 200px;
  gap: 28px;
  align-items: start;
}
body.workspace-puzzle-page .hub-main { min-width: 0; }
body.workspace-puzzle-page .hub-main h1 { margin: 0; color: var(--ink); font: 600 clamp(34px,4vw,52px)/.98 var(--serif); letter-spacing: -.045em; }
body.workspace-puzzle-page .hub-main h1 em { color: var(--accent-strong); font-weight: 500; }
body.workspace-puzzle-page .hub-main .eyebrow { color: var(--accent-strong); }
body.workspace-puzzle-page .hub-subtitle { margin: 10px 0 18px; color: var(--muted); font-size: 14px; max-width: 56ch; }
body.workspace-puzzle-page .hub-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
body.workspace-puzzle-page .mode-card {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  text-align: start;
  cursor: pointer;
  transition: border-color .18s var(--ease), transform .18s var(--ease), box-shadow .18s var(--ease);
}
body.workspace-puzzle-page .mode-card:hover { border-color: color-mix(in srgb, var(--accent) 42%, var(--line)); box-shadow: 0 10px 28px color-mix(in srgb, var(--ink) 9%, transparent); transform: translateY(-1px); }
body.workspace-puzzle-page .mode-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
body.workspace-puzzle-page .mode-card:active { transform: translateY(0); }
body.workspace-puzzle-page .mode-card[disabled] { opacity: .55; cursor: not-allowed; transform: none; box-shadow: none; }
body.workspace-puzzle-page .mode-card-icon {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent-strong);
}
body.workspace-puzzle-page .mode-card-icon svg { width: 22px; height: 22px; }
body.workspace-puzzle-page .mode-card-copy { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
body.workspace-puzzle-page .mode-card-title { color: var(--ink); font: 700 15px/1.2 var(--sans); }
body.workspace-puzzle-page .mode-card-desc { color: var(--muted); font-size: 12.5px; line-height: 1.4; }
body.workspace-puzzle-page .mode-card-status { color: var(--accent-strong); font: 500 11.5px/1 var(--mono); margin-top: 2px; }
body.workspace-puzzle-page .mode-card-shortcut {
  font: 600 11px/1 var(--mono);
  color: var(--faint);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 4px 7px;
}
body.workspace-puzzle-page .hub-mascot {
  position: sticky;
  top: 0;
  display: grid;
  place-items: center;
  align-self: start;
  padding-top: 8px;
}
body.workspace-puzzle-page .hub-mascot img {
  width: 180px; height: 180px;
  border-radius: 50%;
  transform: perspective(700px) rotateY(var(--mascot-tilt-x, 0deg)) rotateX(var(--mascot-tilt-y, 0deg));
  transition: transform .25s var(--ease);
  will-change: transform;
}
body.workspace-puzzle-page .hub-mascot.is-idle img { transform: perspective(700px) rotateY(0deg) rotateX(0deg); }

/* ===== Quiet Meta ===== */
body.workspace-puzzle-page .quiet-meta {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 0;
  margin: 10px 0 0;
  overflow: hidden;
  color: var(--muted);
  font: 600 11px/1.2 var(--mono);
}
body.workspace-puzzle-page .quiet-meta span {
  padding-right: 10px;
  margin-right: 10px;
  border-right: 1px solid var(--line);
  white-space: nowrap;
}
body.workspace-puzzle-page .quiet-meta span:last-child {
  border: 0;
  margin: 0;
  padding: 0;
}
body.workspace-puzzle-page .quiet-meta strong {
  color: var(--ink);
}

/* ===== Board wait overlay ===== */
body.workspace-puzzle-page .board-wait {
  position: absolute;
  inset: auto 16px 16px;
  z-index: 8;
  padding: 10px 14px;
  border-radius: 14px;
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.4;
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--ink) 12%, transparent);
}
body.workspace-puzzle-page .board-wait strong {
  display: block;
  color: var(--ink);
  font: 700 14px/1.25 var(--serif);
  margin-bottom: 2px;
}

/* ===== Custom Themes / My Puzzles Shared Rail Stack ===== */
body.workspace-puzzle-page .rail-stack {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
body.workspace-puzzle-page .head-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  width: 100%;
}
body.workspace-puzzle-page .head-row > div:first-child {
  display: grid;
  justify-items: start;
  gap: 8px;
  min-width: 0;
}
body.workspace-puzzle-page .search {
  flex: 0 0 44px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  margin: 10px 0 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface-soft);
}
body.workspace-puzzle-page .search svg {
  width: 16px;
  height: 16px;
  color: var(--muted);
  flex: 0 0 auto;
}
body.workspace-puzzle-page .search input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  outline: none;
  font: 500 14px/1.2 var(--sans);
  color: var(--ink);
}
body.workspace-puzzle-page .search input::placeholder {
  color: var(--faint);
}
body.workspace-puzzle-page .search .clear-q {
  font: 700 12px/1 var(--sans);
  color: var(--muted);
  padding: 4px 6px;
  border: 0;
  background: transparent;
  cursor: pointer;
}
body.workspace-puzzle-page .search .clear-q:hover {
  color: var(--accent-strong);
}

/* List meta & Chips */
body.workspace-puzzle-page .list-meta {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 32px;
  margin: 8px 0;
  font: 800 9px/1 var(--sans);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}
body.workspace-puzzle-page .list-meta.has-chips #configListMeta {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}
body.workspace-puzzle-page .list-meta.is-open {
  align-items: flex-start;
}
body.workspace-puzzle-page .list-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  margin-left: auto;
}
body.workspace-puzzle-page .list-actions button {
  font: 700 11px/1 var(--sans);
  letter-spacing: 0;
  text-transform: none;
  color: var(--accent-strong);
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}
body.workspace-puzzle-page .brief-strip {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
}
body.workspace-puzzle-page .brief-strip.is-one-line {
  flex-wrap: nowrap;
  overflow: hidden;
  max-height: 32px;
}
body.workspace-puzzle-page .brief-strip .chip,
body.workspace-puzzle-page .chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 32px;
  padding: 0 8px 0 13px;
  border-radius: 999px;
  flex: 0 0 auto;
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 10%, var(--surface)), var(--accent-soft));
  color: var(--accent-strong);
  border: 1px solid color-mix(in srgb, var(--accent) 22%, var(--line));
  box-shadow: inset 0 1px 0 color-mix(in srgb, #fff 55%, transparent);
  font: 600 12.5px/1 var(--sans);
  letter-spacing: .01em;
  cursor: pointer;
}
body.workspace-puzzle-page .brief-strip .chip span {
  display: block;
  max-width: 11.5em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
body.workspace-puzzle-page .brief-strip .chip:hover {
  border-color: color-mix(in srgb, var(--accent) 48%, var(--line));
}
body.workspace-puzzle-page .brief-strip .chip i {
  display: grid;
  place-items: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  flex: 0 0 auto;
  color: color-mix(in srgb, var(--accent-strong) 70%, var(--muted));
}
body.workspace-puzzle-page .brief-strip .chip:hover i {
  color: var(--accent-strong);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}
body.workspace-puzzle-page .brief-strip .chip i svg {
  width: 9px;
  height: 9px;
  display: block;
}
body.workspace-puzzle-page .brief-strip .chip.is-more {
  padding: 0 12px;
  background: var(--surface);
  box-shadow: none;
  font-weight: 700;
  letter-spacing: .02em;
}
body.workspace-puzzle-page .brief-strip .chip.is-all {
  padding-right: 8px;
}

/* Theme List in Setup */
body.workspace-puzzle-page .lists {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
body.workspace-puzzle-page .theme-list {
  flex: 1 1 auto;
  min-height: 0;
  max-height: 280px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-right: 2px;
  border: 0;
  background: transparent;
  scroll-padding-top: 56px;
}
body.workspace-puzzle-page .theme-row {
  flex: 0 0 46px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 22px;
  align-items: center;
  gap: 10px;
  padding: 0 14px;
  border-radius: 13px;
  text-align: left;
  border: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  background: linear-gradient(180deg, var(--surface), var(--surface-soft));
  cursor: pointer;
}
body.workspace-puzzle-page .theme-row.is-all {
  grid-template-columns: minmax(0, 1fr) auto 22px;
}
body.workspace-puzzle-page .theme-row .badge {
  font: 700 10.5px/1 var(--sans);
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 3px 7px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 14%, var(--surface));
  color: var(--accent-strong);
}
/* Custom Themes setup: independent scroll region and compact controls. */
/* Like the solver, config occupies the workspace without the site footer ribbon. */
body.workspace-puzzle-page.is-config-phase .workspace-footer { display: none; }
body.workspace-puzzle-page #phaseConfig .custom-learning-layout {
  /* Stacked layout scrolls; desktop below uses the available workspace height. */
  flex: 0 0 auto;
  height: auto !important;
  min-height: min-content;
  align-items: start !important;
  overflow: visible;
  padding-bottom: 42px;
}
body.workspace-puzzle-page #phaseConfig .custom-learning-board { align-self: start; }
/* The catalog is the primary control; surrounding controls have bounded heights. */
body.workspace-puzzle-page #phaseConfig .custom-config-card {
  box-sizing: border-box;
  padding: 20px;
  min-height: 0;
  max-height: none;
  align-self: start;
  margin-top: 0;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: none;
}
body.workspace-puzzle-page #phaseConfig .custom-config-card [hidden] { display: none !important; }
body.workspace-puzzle-page #phaseConfig .custom-config-card .puzzle-learning-card-head {
  flex: 0 0 42px;
  min-height: 42px;
  flex-direction: row;
  align-items: center !important;
  padding: 0 0 10px;
  gap: 12px;
}
body.workspace-puzzle-page #phaseConfig .custom-config-card #configTitle {
  font-size: 22px;
  line-height: 1.15;
  white-space: nowrap;
}
body.workspace-puzzle-page #phaseConfig .custom-config-card .puzzle-config-rating-card {
  display: flex;
  align-items: baseline;
  gap: 6px;
  width: auto;
  min-width: 0;
  max-width: 45%;
  flex: 0 0 auto;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: none;
  box-shadow: none;
  overflow: visible;
}
body.workspace-puzzle-page #phaseConfig .custom-config-card .puzzle-config-rating-card::before,
body.workspace-puzzle-page #phaseConfig .custom-config-card .puzzle-config-rating-card::after { content: none; }
body.workspace-puzzle-page #phaseConfig .custom-config-card #configStatLabel { display: none; }
body.workspace-puzzle-page #phaseConfig .custom-config-card .puzzle-learning-rating-score { display: block; }
body.workspace-puzzle-page #phaseConfig .custom-config-card .puzzle-learning-rating-score strong {
  font: 700 19px/1.2 var(--sans);
  color: var(--accent-strong);
  letter-spacing: -.02em;
}
body.workspace-puzzle-page #phaseConfig .custom-config-card #configStatHint {
  font: 500 11px/1.3 var(--sans);
  color: var(--muted);
}
body.workspace-puzzle-page #phaseConfig .custom-config-card .rail-stack,
body.workspace-puzzle-page #phaseConfig .custom-config-card #setupMission {
  flex: 1 1 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
body.workspace-puzzle-page #phaseConfig .custom-config-card #setupMission { margin: 0; padding: 0; }
body.workspace-puzzle-page #phaseConfig .custom-config-card .search {
  flex: 0 0 42px;
  margin: 10px 0 0;
  border-radius: 10px;
}
body.workspace-puzzle-page #phaseConfig .custom-config-card #configListMetaRow {
  flex: 0 0 32px;
  height: 32px;
  min-height: 32px;
  max-height: 32px;
  margin: 4px 0;
  align-items: center;
  gap: 8px;
}
body.workspace-puzzle-page #phaseConfig .custom-config-card #configChips {
  flex-wrap: nowrap;
  height: 32px;
  min-height: 0;
  max-height: 32px;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  gap: 5px;
}
body.workspace-puzzle-page #phaseConfig .custom-config-card #configChips::-webkit-scrollbar { display: none; }
body.workspace-puzzle-page #phaseConfig .custom-config-card #configChips .chip {
  box-sizing: border-box;
  height: 32px;
  min-height: 32px;
  max-height: 32px;
  padding: 0 8px;
  gap: 6px;
  font-size: 11px;
  background: var(--surface-soft);
  box-shadow: none;
}
body.workspace-puzzle-page #phaseConfig .custom-config-card .list-actions { gap: 8px; }
body.workspace-puzzle-page #phaseConfig .custom-config-card .list-actions button { min-height: 32px; font-size: 11px; }
body.workspace-puzzle-page #phaseConfig .custom-config-card .lists,
body.workspace-puzzle-page #phaseConfig .custom-config-card .theme-list { flex: 1 1 0; min-height: 0; }
body.workspace-puzzle-page #phaseConfig .custom-config-card .theme-list {
  max-height: none;
  gap: 4px;
  scroll-padding-top: 48px;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}
body.workspace-puzzle-page #phaseConfig .custom-config-card .theme-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 22px;
  flex: 0 0 44px;
  gap: 12px;
  padding: 0 12px;
  border-radius: 9px;
}
body.workspace-puzzle-page #phaseConfig .custom-config-card .theme-row.is-all { grid-template-columns: minmax(0, 1fr) auto 22px; }
body.workspace-puzzle-page #phaseConfig .custom-config-card .theme-row .name { font-size: 14px; }
body.workspace-puzzle-page #phaseConfig .custom-config-card .rating-block { margin-top: 8px; padding-top: 8px; }
body.workspace-puzzle-page #phaseConfig .custom-config-card .rating-head { align-items: center; gap: 10px; min-height: 28px; }
body.workspace-puzzle-page #phaseConfig .custom-config-card .rating-head .band-label { font-size: 10px; letter-spacing: .08em; }
body.workspace-puzzle-page #phaseConfig .custom-config-card .dual-read { margin: 0 0 0 auto; gap: 6px; }
body.workspace-puzzle-page #phaseConfig .custom-config-card .dual-read strong { font: 600 16px/1.2 var(--sans); letter-spacing: -.02em; }
body.workspace-puzzle-page #phaseConfig .custom-config-card .dual-read span { font-size: 11px; }
body.workspace-puzzle-page #phaseConfig .custom-config-card #configBtnAny { min-height: 28px; padding: 0 6px; font-size: 11px; }
body.workspace-puzzle-page #phaseConfig .custom-config-card .dual { margin-top: 0; }
body.workspace-puzzle-page #phaseConfig .custom-config-card .dual-caption { margin: 2px 0 0; font-size: 10px; line-height: 1.3; }
body.workspace-puzzle-page #phaseConfig .custom-config-card .puzzle-learning-actions {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 0;
  margin-top: 10px;
  padding-top: 10px;
  gap: 12px;
}
body.workspace-puzzle-page #phaseConfig .custom-config-card #configStart { min-width: 170px; min-height: 44px; height: 44px; border-radius: 10px; }
body.workspace-puzzle-page #phaseConfig .custom-config-card .puzzle-top-link { min-height: 44px; font-size: 12px; }
body.workspace-puzzle-page #phaseConfig .custom-config-card button:focus-visible,
body.workspace-puzzle-page #phaseConfig .custom-config-card input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
body.workspace-puzzle-page .custom-learning-board .custom-board-caption {
  position: absolute;
  inset: calc(100% + 10px) 44px auto 0;
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}
@media (min-width: 1181px) {
  body.workspace-puzzle-page #phaseConfig .custom-learning-layout {
    flex: 1 1 0;
    height: 100% !important;
    min-height: 0;
    grid-template-rows: minmax(0, 1fr);
    overflow: hidden;
    padding-bottom: 0;
  }
  body.workspace-puzzle-page #phaseConfig .custom-config-card {
    /* Resolve against the workspace after header/padding, never the board. */
    box-sizing: border-box;
    height: 100%;
    max-height: 100%;
    overflow: hidden;
  }
}
@media (max-width: 1180px) {
  body.workspace-puzzle-page.has-puzzle-board-layout #phaseConfig .custom-config-card {
    height: min(680px, calc(100dvh - 144px));
    max-height: calc(100dvh - 144px);
    overflow: hidden;
  }
}
@media (max-height: 680px) {
  body.workspace-puzzle-page #phaseConfig .custom-config-card { padding: 12px 16px; }
  body.workspace-puzzle-page #phaseConfig .custom-config-card .puzzle-learning-card-head { flex-basis: 36px; min-height: 36px; padding-bottom: 6px; }
  body.workspace-puzzle-page #phaseConfig .custom-config-card .search { margin-top: 6px; }
  body.workspace-puzzle-page #phaseConfig .custom-config-card .puzzle-learning-actions { margin-top: 6px; padding-top: 6px; }
}
@media (max-width: 480px) {
  body.workspace-puzzle-page.has-puzzle-board-layout #phaseConfig .custom-config-card { padding: 16px; }
  body.workspace-puzzle-page #phaseConfig .custom-config-card #configTitle { font-size: 19px; }
  body.workspace-puzzle-page #phaseConfig .custom-config-card #configStart { min-width: 0; flex: 0 1 170px; }
}
/* Match the Healthy Mix settings affordance, scoped to this preview. */
body.workspace-puzzle-page #phaseConfig .custom-learning-board #customBoardSettingsMenu {
  inset: calc(100% + 8px) 0 auto auto;
  width: 180px;
  z-index: 30;
}
body.workspace-puzzle-page #phaseConfig .custom-learning-board #customBoardSettingsMenu .puzzle-learning-tool {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  min-width: 0;
  min-height: 44px;
  height: 44px;
  padding: 0 12px;
  font: 600 12px/1.2 var(--sans);
}
@media (max-width: 1180px) {
  body.workspace-puzzle-page #phaseConfig .custom-learning-board #customBoardSettingsMenu {
    inset: auto 0 calc(100% + 8px) auto;
  }
}
body.workspace-puzzle-page .theme-row .name {
  font: 600 15px/1.15 var(--serif);
  letter-spacing: -.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--ink);
}
body.workspace-puzzle-page .theme-row .box {
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
}
body.workspace-puzzle-page .theme-row .box svg {
  width: 22px;
  height: 22px;
  display: block;
}
body.workspace-puzzle-page .theme-row .box .ring {
  fill: var(--surface);
  stroke: color-mix(in srgb, var(--line) 88%, var(--muted));
  stroke-width: 1.5;
}
body.workspace-puzzle-page .theme-row .box .tick {
  fill: none;
  stroke: transparent;
  stroke-width: 2.15;
  stroke-linecap: round;
  stroke-linejoin: round;
}
body.workspace-puzzle-page .theme-row:hover {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--line));
}
body.workspace-puzzle-page .theme-row:hover .box .ring {
  stroke: color-mix(in srgb, var(--accent) 55%, var(--line));
}
body.workspace-puzzle-page .theme-row.is-on {
  border-color: color-mix(in srgb, var(--accent) 48%, var(--line));
  background: color-mix(in srgb, var(--accent) 8%, var(--surface));
}
body.workspace-puzzle-page .theme-row.is-on .box .ring {
  fill: var(--accent);
  stroke: var(--accent);
}
body.workspace-puzzle-page .theme-row.is-on .box .tick {
  stroke: #fffaf1;
}
body.workspace-puzzle-page .theme-row.is-all {
  position: sticky;
  top: 0;
  z-index: 3;
  background: var(--surface);
  box-shadow: 0 10px 16px color-mix(in srgb, var(--paper) 80%, transparent);
  border-color: color-mix(in srgb, var(--accent) 22%, var(--line));
  grid-template-columns: minmax(0, 1fr) auto 22px;
}
body.workspace-puzzle-page .theme-row .badge {
  font: 700 10px/1 var(--mono);
  color: var(--accent-strong);
  padding: 3px 6px;
  border-radius: 6px;
  background: var(--accent-soft);
}
body.workspace-puzzle-page .list-empty {
  padding: 18px 4px;
  color: var(--faint);
  font: 500 13.5px/1.4 var(--sans);
}

/* Rating slider */
body.workspace-puzzle-page .rating-block {
  flex: 0 0 auto;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}
body.workspace-puzzle-page .rating-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 0;
}
body.workspace-puzzle-page .rating-head .band-label {
  margin: 0;
  font: 800 9px/1 var(--sans);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}
body.workspace-puzzle-page .rating-head button {
  font: 700 12px/1 var(--sans);
  color: var(--accent-strong);
  padding: 4px 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}
body.workspace-puzzle-page .rating-head button.is-any {
  color: var(--faint);
  pointer-events: none;
}
body.workspace-puzzle-page .dual-read {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 2px 0 0;
}
body.workspace-puzzle-page .dual-read strong {
  font: 720 24px/.9 var(--serif);
  letter-spacing: -.04em;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}
body.workspace-puzzle-page .dual-read span {
  color: var(--faint);
  font: 600 13px/1 var(--sans);
}
body.workspace-puzzle-page .dual {
  position: relative;
  height: 26px;
  margin: 2px 0 0;
}
body.workspace-puzzle-page .dual-rail {
  position: absolute;
  left: 0;
  right: 0;
  top: 12px;
  height: 4px;
  border-radius: 99px;
  background: var(--line);
}
body.workspace-puzzle-page .dual-fill {
  position: absolute;
  top: 0;
  height: 100%;
  border-radius: 99px;
  background: var(--accent);
}
body.workspace-puzzle-page .dual input[type=range] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 26px;
  max-height: 26px;
  margin: 0;
  background: none;
  pointer-events: none;
  -webkit-appearance: none;
  appearance: none;
}
body.workspace-puzzle-page .dual input[type=range]::-webkit-slider-runnable-track {
  height: 4px;
  background: transparent;
  border: 0;
}
body.workspace-puzzle-page .dual input[type=range]::-moz-range-track {
  height: 4px;
  background: transparent;
  border: 0;
}
body.workspace-puzzle-page .dual input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  pointer-events: auto;
  width: 20px;
  height: 20px;
  margin-top: -8px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--accent);
  box-shadow: 0 1px 4px color-mix(in srgb, var(--ink) 18%, transparent);
  cursor: grab;
}
body.workspace-puzzle-page .dual input[type=range]::-moz-range-thumb {
  pointer-events: auto;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--accent);
  box-shadow: 0 1px 4px color-mix(in srgb, var(--ink) 18%, transparent);
  cursor: grab;
}
body.workspace-puzzle-page .dual-caption {
  margin: 4px 0 0;
  color: var(--muted);
  font: 600 11.5px/1.3 var(--sans);
}

/* My Puzzles Segmented Control & Item List */
body.workspace-puzzle-page .seg {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding: 3px;
  margin: 8px 0;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface-soft);
  gap: 2px;
}
body.workspace-puzzle-page .seg .chip {
  min-height: 36px;
  border-radius: 11px;
  color: var(--muted);
  font: 650 13px/1 var(--sans);
  background: transparent;
  border: 0;
  box-shadow: none;
  justify-content: center;
  padding: 0 8px;
}
body.workspace-puzzle-page .seg .chip.is-active {
  background: var(--surface);
  color: var(--accent-strong);
  font-weight: 700;
  box-shadow: 0 1px 2px color-mix(in srgb, var(--ink) 10%, transparent), 0 8px 18px color-mix(in srgb, var(--ink) 6%, transparent);
}
body.workspace-puzzle-page .item-list {
  flex: 1 1 auto;
  min-height: 0;
  max-height: 380px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
body.workspace-puzzle-page .puzzle-list-item.my-puzzle-row {
  display: block;
  padding: 0;
  border-radius: 13px;
  border: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  background: linear-gradient(180deg, var(--surface), var(--surface-soft));
  cursor: pointer;
}
body.workspace-puzzle-page .puzzle-list-item.my-puzzle-row:hover {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--line));
}
body.workspace-puzzle-page .puzzle-list-item.my-puzzle-row.is-selected,
body.workspace-puzzle-page .puzzle-list-item.my-puzzle-row.is-on {
  border-color: color-mix(in srgb, var(--accent) 48%, var(--line));
  background: color-mix(in srgb, var(--accent) 8%, var(--surface));
}
body.workspace-puzzle-page .mp-group-filter-wrap {
  margin: 6px 0;
}

/* ===== Phase B: Custom Themes config ===== */
body.workspace-puzzle-page .config-body { max-width: 720px; display: flex; flex-direction: column; gap: 16px; }
body.workspace-puzzle-page .config-body h1, body.workspace-puzzle-page .dashboard-body h1 { margin: 0; color: var(--ink); font: 600 clamp(28px,3vw,40px)/1.05 var(--serif); letter-spacing: -.03em; }
body.workspace-puzzle-page .config-card {
  display: flex; flex-direction: column; gap: 20px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface);
}
body.workspace-puzzle-page .config-section { display: flex; flex-direction: column; gap: 10px; }
body.workspace-puzzle-page .config-section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
body.workspace-puzzle-page .config-section h2 { margin: 0; color: var(--ink); font: 700 15px/1.2 var(--sans); }
body.workspace-puzzle-page .config-summary { color: var(--accent-strong); font: 500 12px/1 var(--mono); }
body.workspace-puzzle-page .config-hint { color: var(--muted); font-size: 12.5px; line-height: 1.45; }
body.workspace-puzzle-page .config-error { color: var(--bad, var(--danger, #e06a5f)); }
body.workspace-puzzle-page .theme-search input {
  width: 100%;
  min-height: 42px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--surface-soft);
  color: var(--ink);
  font: 400 14px/1.3 var(--sans);
}
body.workspace-puzzle-page .theme-search input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
body.workspace-puzzle-page .theme-multi-select {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  max-height: 260px;
  overflow: auto;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--surface-soft);
}
body.workspace-puzzle-page .theme-option {
  display: flex; align-items: center; gap: 9px;
  padding: 8px 10px;
  border-radius: 9px;
  background: transparent;
  color: var(--muted);
  text-align: start;
  font-size: 13px;
  cursor: pointer;
}
body.workspace-puzzle-page .theme-option:hover { background: color-mix(in srgb, var(--accent) 10%, transparent); color: var(--ink); }
body.workspace-puzzle-page .theme-option.is-active { outline: 2px solid var(--accent); outline-offset: -2px; }
body.workspace-puzzle-page .theme-option.is-selected { background: var(--accent-soft); color: var(--accent-strong); }
body.workspace-puzzle-page .theme-option-check {
  flex: 0 0 16px; height: 16px;
  display: grid; place-items: center;
  border: 1px solid var(--line);
  border-radius: 5px;
  font-size: 10px;
  color: transparent;
}
body.workspace-puzzle-page .theme-option.is-selected .theme-option-check { border-color: var(--accent); background: var(--accent); color: var(--on-accent, #fff); }
body.workspace-puzzle-page .theme-option-empty { grid-column: 1 / -1; padding: 14px; color: var(--muted); font-size: 13px; text-align: center; }
body.workspace-puzzle-page .config-chip-row { display: flex; flex-wrap: wrap; gap: 7px; min-height: 0; }
body.workspace-puzzle-page .config-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 6px 5px 11px;
  border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--line));
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 12px;
}
body.workspace-puzzle-page .config-chip-x {
  width: 18px; height: 18px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: inherit;
  font-size: 12px;
  line-height: 1;
}
body.workspace-puzzle-page .config-chip-x:hover { background: color-mix(in srgb, var(--accent) 32%, transparent); }
body.workspace-puzzle-page .config-batch { display: flex; gap: 8px; }
body.workspace-puzzle-page .rating-stepper { display: flex; align-items: center; gap: 12px; }
body.workspace-puzzle-page .rating-stepper-field { display: flex; flex-direction: column; gap: 5px; color: var(--muted); font-size: 12px; }
body.workspace-puzzle-page .rating-stepper-field input {
  width: 130px;
  min-height: 42px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--surface-soft);
  color: var(--ink);
  font: 500 14px/1.3 var(--mono);
}
body.workspace-puzzle-page .rating-stepper-field input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
body.workspace-puzzle-page .rating-stepper-field input[aria-invalid="true"] { border-color: var(--bad, var(--danger, #e06a5f)); }
body.workspace-puzzle-page .rating-stepper-dash { color: var(--faint); }
body.workspace-puzzle-page .config-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* ===== Shared stage + Learning rail language ===== */
body.workspace-puzzle-page .puzzle-experience-phase { overflow: hidden; }
body.workspace-puzzle-page .puzzle-experience-layout {
  --experience-rail-w: clamp(460px, 38vw, 610px);
  flex: 1 1 auto;
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, var(--experience-rail-w));
  gap: clamp(22px, 3vw, 48px);
  align-items: stretch;
}
body.workspace-puzzle-page .puzzle-experience-stage {
  min-width: 0;
  min-height: 0;
  padding: clamp(24px, 3vw, 40px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
body.workspace-puzzle-page .puzzle-experience-stage-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 36ch);
  gap: 24px;
  align-items: end;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}
body.workspace-puzzle-page .puzzle-experience-stage-head h1 {
  margin: 7px 0 0;
  color: var(--ink);
  font: 700 clamp(35px, 4vw, 56px)/.96 var(--serif);
  letter-spacing: -.045em;
}
body.workspace-puzzle-page .puzzle-experience-stage-head > p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.55; }
body.workspace-puzzle-page .puzzle-context-card { height: 100%; max-height: none; margin: 0; }
body.workspace-puzzle-page .puzzle-context-hero { padding: clamp(26px, 4vh, 42px) 0 24px; }
body.workspace-puzzle-page .puzzle-context-icon {
  width: 46px;
  height: 46px;
  margin-bottom: 22px;
  display: grid;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--accent) 42%, var(--line));
  border-radius: 14px;
  background: linear-gradient(145deg, color-mix(in srgb, var(--accent) 18%, var(--surface)), var(--surface-soft));
  color: var(--accent-strong);
  box-shadow: inset 0 1px 0 color-mix(in srgb, #fff 40%, transparent), 0 10px 26px color-mix(in srgb, var(--accent) 11%, transparent);
  font: 800 20px/1 var(--serif);
}
body.workspace-puzzle-page .puzzle-context-hero h2 {
  margin: 9px 0 10px;
  color: var(--ink);
  font: 700 clamp(29px, 2.7vw, 42px)/1 var(--serif);
  letter-spacing: -.04em;
  text-wrap: balance;
}
body.workspace-puzzle-page .puzzle-context-hero > p:last-child { max-width: 46ch; margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.55; }
body.workspace-puzzle-page .puzzle-plan-count {
  min-width: 48px;
  min-height: 38px;
  padding: 0 12px;
  display: inline-grid;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--accent) 34%, var(--line));
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font: 800 12px/1 var(--mono);
}
body.workspace-puzzle-page .puzzle-plan-metrics {
  margin: 0;
  display: grid;
  border-block: 1px solid var(--line);
}
body.workspace-puzzle-page .puzzle-plan-metrics > div { padding: 15px 0; display: grid; grid-template-columns: 92px minmax(0, 1fr); gap: 18px; }
body.workspace-puzzle-page .puzzle-plan-metrics > div + div { border-top: 1px solid color-mix(in srgb, var(--line) 72%, transparent); }
body.workspace-puzzle-page .puzzle-plan-metrics dt { color: var(--faint); font: 800 9px/1.2 var(--sans); letter-spacing: .13em; text-transform: uppercase; }
body.workspace-puzzle-page .puzzle-plan-metrics dd { margin: 0; color: var(--ink); font: 700 13px/1.35 var(--sans); text-align: right; overflow-wrap: anywhere; }
body.workspace-puzzle-page .puzzle-context-note {
  margin: 22px 0 0;
  padding: 16px 17px;
  border-left: 3px solid var(--accent);
  border-radius: 0 14px 14px 0;
  background: color-mix(in srgb, var(--accent) 7%, var(--surface-soft));
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.5;
}
body.workspace-puzzle-page .puzzle-context-note strong { display: block; margin-bottom: 3px; color: var(--ink); }
body.workspace-puzzle-page .puzzle-context-actions { margin-top: auto; padding-top: 22px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
body.workspace-puzzle-page .puzzle-context-actions .primary { min-width: 180px; }
body.workspace-puzzle-page .puzzle-step-label { margin: 0 0 5px; color: var(--accent-strong); font: 800 9px/1.2 var(--mono); letter-spacing: .12em; text-transform: uppercase; }

/* Custom builder */
body.workspace-puzzle-page .config-workbench .config-body { max-width: none; min-height: 0; flex: 1 1 auto; padding-top: 22px; }
body.workspace-puzzle-page .config-workbench .config-card { min-height: 0; flex: 1 1 auto; padding: 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; }
body.workspace-puzzle-page .config-workbench .config-section:first-child { min-height: 0; flex: 1 1 auto; }
body.workspace-puzzle-page .config-workbench .theme-multi-select { max-height: 46vh; min-height: 220px; flex: 0 0 auto; grid-template-columns: repeat(3, minmax(0, 1fr)); align-content: start; padding: 7px 7px 12px; overflow-y: auto; scrollbar-width: thin; scrollbar-color: color-mix(in srgb, var(--accent) 62%, var(--line)) color-mix(in srgb, var(--surface) 88%, transparent); }
body.workspace-puzzle-page .config-workbench .theme-multi-select::-webkit-scrollbar { width: 10px; }
body.workspace-puzzle-page .config-workbench .theme-multi-select::-webkit-scrollbar-thumb { background: color-mix(in srgb, var(--accent) 62%, var(--line)); border-radius: 6px; }
body.workspace-puzzle-page .config-rating-section { padding-top: 18px; border-top: 1px solid var(--line); }
body.workspace-puzzle-page .config-plan-card .config-actions { margin-top: auto; }
body.workspace-puzzle-page .config-plan-card #configStart { flex: 1 1 210px; }

/* My Puzzles library and active review */
body.workspace-puzzle-page #myPuzzleStatus:empty { display: none; }
body.workspace-puzzle-page #savedSectionPanel { position: relative; }
body.workspace-puzzle-page.is-my-puzzles-phase .workspace-footer,
body.workspace-puzzle-page #phaseMyPuzzles .puzzle-footer { display: none; }
body.workspace-puzzle-page.is-my-puzzles-phase { --page-pad-x: 12px; --mp-thumb-size: 44px; }
body.workspace-puzzle-page.is-my-puzzles-phase #phaseMyPuzzles,
body.workspace-puzzle-page.is-my-puzzles-phase #savedSectionPanel { overflow: hidden; }
body.workspace-puzzle-page #myPuzzleStatus:not(:empty) {
  position: absolute;
  z-index: 20;
  inset: 10px 10px auto auto;
  width: min(420px, calc(100% - 20px));
  margin: 0;
  box-shadow: 0 12px 32px color-mix(in srgb, #000 18%, transparent);
}
body.workspace-puzzle-page .puzzle-library-experience {
  --library-rail-w: clamp(410px, 34vw, 540px);
  min-width: 0;
  min-height: 0;
  flex: 1 1 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(390px, var(--library-rail-w));
  gap: clamp(20px, 2.7vw, 42px);
  align-items: stretch;
}
body.workspace-puzzle-page .puzzle-library-experience > .saved-library { min-height: 0; padding: clamp(22px, 2vw, 30px); overflow: auto; }
body.workspace-puzzle-page .puzzle-library-experience .puzzle-library-layout { display: block; }
body.workspace-puzzle-page .puzzle-library-rail { height: auto; max-height: none; margin: 0; padding: clamp(22px, 2vw, 28px); }
body.workspace-puzzle-page .puzzle-library-rail .puzzle-context-hero { padding-block: 24px 18px; }
body.workspace-puzzle-page .puzzle-library-rail .puzzle-context-icon { width: 40px; height: 40px; margin-bottom: 16px; }
body.workspace-puzzle-page .puzzle-library-rail .puzzle-context-hero h2 { font-size: clamp(25px, 2.2vw, 34px); }
body.workspace-puzzle-page .puzzle-library-rail .saved-stats { grid-template-columns: 1.35fr 1fr 1fr; gap: 8px; }
body.workspace-puzzle-page .puzzle-library-rail .card.stat-card { min-width: 0; min-height: 112px; padding: 15px 13px; border-radius: 15px; box-shadow: none; }
body.workspace-puzzle-page .puzzle-library-rail .stat-num { font-size: clamp(25px, 2.2vw, 34px); }
body.workspace-puzzle-page .puzzle-library-rail .stat-sub { font-size: 10.5px; }
body.workspace-puzzle-page .puzzle-library-rail .stat-card-button { width: 100%; min-height: 34px; margin-top: 9px; padding-inline: 8px; font-size: 10.5px; }
body.workspace-puzzle-page .puzzle-preview-empty { min-height: 180px; margin-top: 18px; padding: 24px; display: grid; place-items: center; align-content: center; gap: 8px; border: 1px dashed color-mix(in srgb, var(--line) 82%, var(--accent) 18%); border-radius: 16px; color: var(--muted); text-align: center; }
body.workspace-puzzle-page .puzzle-preview-empty[hidden] { display: none; }
body.workspace-puzzle-page .puzzle-preview-empty > span { color: var(--accent-strong); font-size: 26px; }
body.workspace-puzzle-page .puzzle-preview-empty strong { color: var(--ink); font-family: var(--serif); font-size: 19px; }
body.workspace-puzzle-page .puzzle-preview-empty p { max-width: 32ch; margin: 0; font-size: 12px; line-height: 1.45; }
body.workspace-puzzle-page .puzzle-library-rail .puzzle-preview { margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--line); }
body.workspace-puzzle-page .puzzle-library-rail .puzzle-preview h3 { margin: 5px 0 13px; color: var(--ink); font: 700 18px/1.2 var(--serif); }
body.workspace-puzzle-page .puzzle-library-rail .puzzle-preview-board { width: min(100%, 290px); margin-inline: auto; }

/* My Puzzles: board-first library with a stable, information-dense rail. */
body.workspace-puzzle-page .puzzle-library-experience {
  --library-rail-w: clamp(580px, 43.5vw, 650px);
  --library-anchor-gap: 16px;
  --library-gap: 48px;
  --library-anchor-stage-size: min(
    calc(100dvh - var(--header-h) - (2 * var(--page-pad-y)) - 98px),
    calc(100dvw - var(--sidebar-w) - var(--library-rail-w) - var(--library-anchor-gap) - (2 * var(--page-pad-x))),
    920px
  );
  --library-board-slot: calc((100dvw - var(--sidebar-w) - (2 * var(--page-pad-x)) + var(--library-anchor-stage-size) - var(--library-rail-w) - var(--library-anchor-gap)) / 2);
  --library-stage-size: min(calc(100dvh - var(--header-h) - (2 * var(--page-pad-y))), var(--library-board-slot), 920px);
  grid-template-columns: minmax(0, var(--library-board-slot)) minmax(0, 1fr);
  gap: var(--library-gap);
  align-items: start;
}
body.workspace-puzzle-page .puzzle-library-experience > .my-library-board.puzzle-learning-board {
  --board-size: 100%;
  position: relative;
  width: 100%;
  min-width: 0;
  align-items: stretch;
  justify-self: stretch;
}
body.workspace-puzzle-page .my-library-board .puzzle-board-wrapper,
body.workspace-puzzle-page .my-library-board .puzzle-board-shell,
body.workspace-puzzle-page .my-library-board .puzzle-board { width: var(--library-stage-size); max-width: 100%; align-self: flex-start; }
body.workspace-puzzle-page .my-library-board .puzzle-board-wrapper { flex: 0 0 auto; }
body.workspace-puzzle-page .my-library-board .puzzle-board { aspect-ratio: 1; }
body.workspace-puzzle-page .my-library-board-empty {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 8px;
  padding: 32px;
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  color: var(--muted);
  text-align: center;
  backdrop-filter: blur(10px);
}
body.workspace-puzzle-page .my-library-board-empty[hidden] { display: none; }
body.workspace-puzzle-page .my-library-board-empty > span { color: var(--accent-strong); font-size: 32px; }
body.workspace-puzzle-page .my-library-board-empty strong { color: var(--ink); font: 700 22px/1.2 var(--serif); }
body.workspace-puzzle-page .my-library-board-empty p { margin: 0; font-size: 13px; }
body.workspace-puzzle-page .my-library-board-caption {
  position: absolute;
  z-index: 4;
  inset: auto 16px 16px 16px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 16px;
  border: 1px solid color-mix(in srgb, var(--line) 72%, var(--accent) 28%);
  border-radius: 14px;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  box-shadow: 0 16px 36px color-mix(in srgb, #000 28%, transparent);
  backdrop-filter: blur(14px);
}
body.workspace-puzzle-page .my-library-board-caption[hidden] { display: none; }
body.workspace-puzzle-page .my-library-board-caption h2 { min-width: 0; margin: 0; overflow: hidden; color: var(--ink); font: 700 17px/1.2 var(--serif); text-overflow: ellipsis; white-space: nowrap; }
body.workspace-puzzle-page .my-library-board-caption .puzzle-meta { flex: 0 1 auto; margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
/* The board is the primary surface: keep it clear and anchor it to the rail
   like the Healthy Mix layout. Selection context lives in the rail instead of
   floating over the position. */
body.workspace-puzzle-page .puzzle-library-experience > .my-library-board.puzzle-learning-board {
  width: var(--library-stage-size);
  max-width: 100%;
  justify-self: end;
}
body.workspace-puzzle-page .my-library-board-caption { display: none; }
body.workspace-puzzle-page .puzzle-learning-card.puzzle-library-rail {
  box-sizing: border-box;
  width: 100%;
  height: var(--library-stage-size);
  max-height: var(--library-stage-size);
  min-height: 0;
  padding: 20px 22px;
  overflow-y: hidden;
  overflow-x: hidden;
}
body.workspace-puzzle-page .puzzle-library-rail .puzzle-learning-card-head { flex: 0 0 auto; padding-bottom: 8px; }
body.workspace-puzzle-page .puzzle-library-rail .my-library-head h2 { margin: 0; color: var(--ink); font: 700 clamp(24px, 2vw, 30px)/1.1 var(--serif); }
body.workspace-puzzle-page .my-library-summary,
body.workspace-puzzle-page .my-library-controls { flex: 0 0 auto; padding-block: 14px; border-bottom: 1px solid var(--line); }
body.workspace-puzzle-page .my-library-summary { padding-block: 6px; display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 10px; }
body.workspace-puzzle-page .my-library-summary .my-library-section-head { display: contents; }
body.workspace-puzzle-page .my-library-summary .my-library-section-head > div { display: none; }
body.workspace-puzzle-page .my-library-summary #reviewDueCta { grid-column: 2; grid-row: 1; min-width: 112px; min-height: 44px; }
body.workspace-puzzle-page .my-library-summary .stat-row { grid-column: 1; grid-row: 1; margin: 0; }
body.workspace-puzzle-page .my-library-summary > .stat-row > .card.stat-card { height: 58px; min-height: 58px; max-height: 58px; padding: 6px 11px; display: grid; grid-template-rows: 10px 27px; align-content: center; gap: 4px; border-radius: 12px; }
body.workspace-puzzle-page .my-library-summary .stat-num { min-height: 27px; margin: 0; color: var(--ink); font-size: clamp(21px, 1.8vw, 27px); line-height: 1; font-variant-numeric: tabular-nums; }
body.workspace-puzzle-page .my-library-summary .stat-num.is-loading { position: relative; width: min(64px, 78%); overflow: hidden; border-radius: 6px; background: color-mix(in srgb, var(--line) 72%, transparent); }
body.workspace-puzzle-page .my-library-summary .stat-num.is-loading::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--ink) 10%, transparent), transparent); transform: translateX(-100%); animation: my-account-kpi-loading 1.2s ease-in-out infinite; }
body.workspace-puzzle-page .my-library-summary .stat-num.is-unavailable { color: var(--muted); font: 750 14px/25px var(--mono); }
@keyframes my-account-kpi-loading { to { transform: translateX(100%); } }
body.workspace-puzzle-page .my-library-summary .stat-sub { display: none; }
body.workspace-puzzle-page .my-library-summary .eyebrow { margin: 0; display: flex; overflow: hidden; font-size: 9px; line-height: 10px; white-space: nowrap; }
body.workspace-puzzle-page .my-library-summary .stat-card-cta { min-height: 34px; padding: 7px 9px; font-size: 10px; }
body.workspace-puzzle-page .my-library-section-head,
body.workspace-puzzle-page .my-library-results-head,
body.workspace-puzzle-page .my-library-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
body.workspace-puzzle-page .my-library-section-head h2,
body.workspace-puzzle-page .my-library-results-head h2 { margin: 3px 0 0; color: var(--ink); font: 700 16px/1.2 var(--serif); }
body.workspace-puzzle-page .puzzle-library-rail .saved-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin-top: 11px; }
body.workspace-puzzle-page .puzzle-library-rail .card.stat-card,
body.workspace-puzzle-page .puzzle-library-rail .stat-card-cta { min-height: 74px; padding: 10px 12px; display: block; }
body.workspace-puzzle-page .puzzle-library-rail .stat-num { margin-top: 2px; font-size: clamp(22px, 2vw, 30px); line-height: 1; }
body.workspace-puzzle-page .puzzle-library-rail .stat-sub { margin-top: 4px; }
body.workspace-puzzle-page .my-library-controls .chip-row { display: flex; gap: 5px; margin-top: 11px; overflow-x: auto; scrollbar-width: none; }
body.workspace-puzzle-page .my-library-controls .chip-row::-webkit-scrollbar { display: none; }
body.workspace-puzzle-page .my-library-controls .chip { flex: 0 0 auto; min-height: 34px; padding: 7px 10px; }
body.workspace-puzzle-page .my-library-controls { position: relative; z-index: 18; padding-block: 8px; overflow: visible; }
body.workspace-puzzle-page .my-library-filter-menu { position: relative; width: 100%; }
body.workspace-puzzle-page .my-library-filter-menu > summary { min-height: 44px; padding: 8px 12px; display: grid; grid-template-columns: auto minmax(0, 1fr) 18px; align-items: center; gap: 10px; border: 1px solid var(--line); border-radius: 12px; background: color-mix(in srgb, var(--surface) 94%, var(--accent) 6%); color: var(--ink); cursor: pointer; list-style: none; }
body.workspace-puzzle-page .my-library-filter-menu > summary::-webkit-details-marker { display: none; }
body.workspace-puzzle-page .my-library-filter-menu > summary:hover { border-color: color-mix(in srgb, var(--accent) 46%, var(--line)); }
body.workspace-puzzle-page .my-library-filter-menu > summary:focus-visible { outline: 2px solid var(--accent-strong); outline-offset: 2px; }
body.workspace-puzzle-page .my-library-filter-title { color: var(--accent-strong); font: 800 10px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; }
body.workspace-puzzle-page .my-library-filter-summary { min-width: 0; overflow: hidden; color: var(--muted); font: 700 11px/1.2 var(--sans); text-overflow: ellipsis; white-space: nowrap; }
body.workspace-puzzle-page .my-library-filter-chevron { width: 8px; height: 8px; justify-self: center; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(45deg) translate(-1px, -1px); transition: transform .16s ease; }
body.workspace-puzzle-page .my-library-filter-menu[open] > summary { border-color: color-mix(in srgb, var(--accent) 62%, var(--line)); box-shadow: 0 8px 24px color-mix(in srgb, #000 16%, transparent); }
body.workspace-puzzle-page .my-library-filter-menu[open] .my-library-filter-chevron { transform: rotate(225deg) translate(-1px, -1px); }
body.workspace-puzzle-page .my-library-filter-popover { position: absolute; z-index: 40; inset: calc(100% + 7px) 0 auto; max-height: min(470px, var(--my-library-filter-max-height, calc(var(--library-stage-size) - 150px))); padding: 14px; overflow-y: auto; border: 1px solid color-mix(in srgb, var(--accent) 38%, var(--line)); border-radius: 14px; background: color-mix(in srgb, var(--surface) 97%, transparent); box-shadow: 0 22px 52px color-mix(in srgb, #000 34%, transparent), inset 0 1px 0 color-mix(in srgb, #fff 8%, transparent); backdrop-filter: blur(18px); }
body.workspace-puzzle-page .my-library-filter-section { display: grid; gap: 9px; }
body.workspace-puzzle-page .my-library-controls .chip-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 7px; margin: 0; overflow: visible; }
body.workspace-puzzle-page .my-library-controls .chip { min-width: 0; min-height: 44px; padding: 8px 9px; }
body.workspace-puzzle-page .my-library-controls .puzzle-filters { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 13px; }
body.workspace-puzzle-page .my-library-filter-field { min-width: 0; display: grid; gap: 6px; color: var(--muted); font: 800 9px/1 var(--mono); letter-spacing: .09em; text-transform: uppercase; }
body.workspace-puzzle-page .my-library-controls .puzzle-select { width: 100%; min-height: 44px; color: var(--ink); font-family: var(--sans); font-size: 12px; letter-spacing: 0; text-transform: none; }
body.workspace-puzzle-page .my-library-filter-footer { min-height: 36px; margin-top: 12px; padding-top: 10px; display: flex; align-items: center; justify-content: space-between; gap: 12px; border-top: 1px solid var(--line); color: var(--muted); font: 700 10px/1.2 var(--mono); }
body.workspace-puzzle-page .my-library-results { min-height: 0; flex: 1 1 auto; display: flex; flex-direction: column; padding-top: 9px; }
body.workspace-puzzle-page .my-library-results-head { flex: 0 0 auto; }
body.workspace-puzzle-page .my-library-list-status {
  flex: 0 0 28px;
  min-height: 28px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font: 700 10px/1 var(--mono);
  letter-spacing: .05em;
  text-transform: uppercase;
}
body.workspace-puzzle-page .my-library-list-status.is-error { color: var(--danger, #e97b72); }
body.workspace-puzzle-page .my-library-loading-pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-strong); box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 34%, transparent); animation: my-library-pulse 1.15s ease-out infinite; }
@keyframes my-library-pulse { 70%,100% { box-shadow: 0 0 0 8px transparent; } }
body.workspace-puzzle-page .my-library-results .puzzle-library-layout { min-height: 0; flex: 1 1 auto; margin: 0; overflow: hidden; }
body.workspace-puzzle-page .my-library-results .puzzle-list {
  height: 100%;
  align-content: start;
  overflow-y: auto;
  padding-right: 6px;
  overscroll-behavior-y: contain;
  scroll-behavior: smooth;
  scrollbar-color: color-mix(in srgb, var(--accent) 62%, var(--line)) color-mix(in srgb, var(--surface) 88%, transparent);
  scrollbar-gutter: stable;
  scrollbar-width: thin;
  transition: opacity .16s ease;
}
body.workspace-puzzle-page .my-library-results .puzzle-list::-webkit-scrollbar { width: 10px; }
body.workspace-puzzle-page .my-library-results .puzzle-list::-webkit-scrollbar-track { border-radius: 999px; background: color-mix(in srgb, var(--surface) 88%, transparent); }
body.workspace-puzzle-page .my-library-results .puzzle-list::-webkit-scrollbar-thumb { min-height: 48px; border: 2px solid transparent; border-radius: 999px; background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 78%, var(--ink)), color-mix(in srgb, var(--accent) 48%, var(--line))) padding-box; }
body.workspace-puzzle-page .my-library-results .puzzle-list::-webkit-scrollbar-thumb:hover { background: linear-gradient(180deg, var(--accent-strong), color-mix(in srgb, var(--accent) 66%, var(--ink))) padding-box; }
body.workspace-puzzle-page .my-library-results .puzzle-list.is-loading { opacity: .42; pointer-events: none; }
body.workspace-puzzle-page .my-library-results .puzzle-list-item {
  min-height: 80px;
  padding: 8px 74px 8px 38px;
  gap: 8px;
  border-radius: 13px;
  cursor: pointer;
  box-shadow: none;
  scroll-margin-block: 8px;
}
body.workspace-puzzle-page .my-library-results .puzzle-list-item:focus-visible { outline: 2px solid var(--accent-strong); outline-offset: -2px; }
body.workspace-puzzle-page .my-library-results .puzzle-list-item:hover,
body.workspace-puzzle-page .my-library-results .puzzle-list-item.is-selected { border-color: color-mix(in srgb, var(--accent) 62%, var(--line)); background: color-mix(in srgb, var(--surface) 91%, var(--accent) 9%); }
body.workspace-puzzle-page .my-library-results .puzzle-list-item.is-selected { box-shadow: inset 3px 0 0 var(--accent-strong); }
body.workspace-puzzle-page .my-library-results .puzzle-item-main { min-width: 0; display: grid; grid-template-rows: auto auto auto; align-content: center; gap: 3px; overflow: hidden; }
body.workspace-puzzle-page .my-library-results .puzzle-item-header { gap: 5px; }
body.workspace-puzzle-page .my-library-results :is(.puzzle-origin-badge,.puzzle-rating-badge,.puzzle-level-badge,.puzzle-srs-badge) { padding: 2px 7px; font-size: 8.5px; }
body.workspace-puzzle-page .my-puzzle-row-opening { overflow: hidden; color: var(--ink); font: 700 14px/1.25 var(--serif); text-overflow: ellipsis; white-space: nowrap; }
body.workspace-puzzle-page .my-puzzle-row-details { min-width: 0; display: flex; align-items: center; gap: 9px; overflow: hidden; }
body.workspace-puzzle-page .my-puzzle-row-game { flex: 1 1 42%; min-width: 80px; overflow: hidden; color: var(--muted); font-size: 10.5px; text-overflow: ellipsis; white-space: nowrap; }
body.workspace-puzzle-page .my-library-results .puzzle-srs-bar,
body.workspace-puzzle-page .my-library-results .puzzle-item-meta,
body.workspace-puzzle-page .my-library-results .puzzle-next-review { display: none; }
body.workspace-puzzle-page .my-library-results .puzzle-theme-row { flex: 0 1 auto; min-width: 0; margin: 0; display: flex; flex-wrap: nowrap; justify-content: flex-end; gap: 4px; overflow: hidden; }
body.workspace-puzzle-page .my-library-results .puzzle-theme-chip,
body.workspace-puzzle-page .my-library-results .puzzle-theme-more { flex: 0 1 auto; min-height: 18px; max-width: 104px; padding: 3px 6px; overflow: hidden; border-radius: 6px; font-size: 8.5px; line-height: 1.1; text-overflow: ellipsis; white-space: nowrap; }
body.workspace-puzzle-page .my-library-results .puzzle-status-row { position: absolute; inset: 9px 10px 9px auto; width: 54px; align-items: flex-end; flex-direction: column; justify-content: space-between; }
body.workspace-puzzle-page .my-library-results .puzzle-list-buttons { margin: 0; }
body.workspace-puzzle-page .my-library-results .puzzle-status-badge { display: inline-flex; padding: 3px 7px; border-radius: 999px; color: var(--accent-strong); background: color-mix(in srgb, var(--accent) 12%, var(--surface)); font: 800 9px/1.2 var(--mono); letter-spacing: .04em; text-transform: uppercase; }
body.workspace-puzzle-page .my-library-results .puzzle-status-badge.due { color: var(--danger, #d96860); background: color-mix(in srgb, var(--danger, #d96860) 11%, var(--surface)); }
body.workspace-puzzle-page .my-library-results .puzzle-list-buttons .puzzle-button { min-height: 34px; padding: 6px 10px; font-size: 11px; }
body.workspace-puzzle-page .my-library-results .my-puzzle-remove { width: 44px; min-width: 44px; min-height: 44px; padding: 0; font-size: 18px; }
body.workspace-puzzle-page .my-library-results .puzzle-empty { height: 100%; min-height: 150px; }
body.workspace-puzzle-page .my-library-actions { flex: 0 0 auto; min-width: 0; padding-top: 9px; display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 14px; border-top: 1px solid var(--line); }
body.workspace-puzzle-page .my-library-current-choice { min-width: 0; display: grid; grid-template-columns: auto minmax(0, 1fr); grid-template-areas: 'label title' 'themes themes'; align-items: baseline; gap: 4px 9px; }
body.workspace-puzzle-page .my-library-current-choice > .puzzle-kicker { grid-area: label; }
body.workspace-puzzle-page .my-library-current-choice > strong { grid-area: title; overflow: hidden; color: var(--ink); font: 700 14px/1.2 var(--serif); text-overflow: ellipsis; white-space: nowrap; }
body.workspace-puzzle-page .my-library-current-themes { grid-area: themes; min-width: 0; display: flex; gap: 5px; overflow: hidden; }
body.workspace-puzzle-page .my-library-current-themes .puzzle-theme-chip { flex: 0 1 auto; max-width: 150px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
body.workspace-puzzle-page .my-library-action-buttons { display: flex; align-items: center; gap: 8px; }
body.workspace-puzzle-page .my-library-actions .puzzle-button { min-height: 44px; white-space: nowrap; }
@media (prefers-reduced-motion: reduce) {
  body.workspace-puzzle-page .my-library-loading-pulse,
  body.workspace-puzzle-page .my-library-summary .stat-num.is-loading::after { animation: none; }
}
@media (max-width: 720px) {
  body.workspace-puzzle-page .my-library-filter-popover { position: relative; inset: auto; max-height: 64dvh; margin-top: 7px; box-shadow: 0 14px 34px color-mix(in srgb, #000 24%, transparent); }
  body.workspace-puzzle-page .my-library-controls .puzzle-filters { grid-template-columns: 1fr; }
  body.workspace-puzzle-page .my-library-results .puzzle-list-item { padding-right: 64px; }
  body.workspace-puzzle-page .my-puzzle-row-game { flex-basis: 34%; }
}
body.workspace-puzzle-page .puzzle-review-experience {
  --review-rail-w: clamp(580px, 43.5vw, 650px);
  --review-anchor-gap: 16px;
  --review-gap: 48px;
  --review-anchor-stage-size: min(
    calc(100dvh - var(--header-h) - (2 * var(--page-pad-y)) - 98px),
    calc(100dvw - var(--sidebar-w) - var(--review-rail-w) - var(--review-anchor-gap) - (2 * var(--page-pad-x))),
    920px
  );
  --review-board-slot: calc((100dvw - var(--sidebar-w) - (2 * var(--page-pad-x)) + var(--review-anchor-stage-size) - var(--review-rail-w) - var(--review-anchor-gap)) / 2);
  --review-stage-size: min(calc(100dvh - var(--header-h) - (2 * var(--page-pad-y))), var(--review-board-slot), 920px);
  min-height: 0;
  flex: 1 1 auto;
  display: grid;
  grid-template-columns: minmax(0, var(--review-board-slot)) minmax(0, 1fr);
  gap: var(--review-gap);
  align-items: start;
}
body.workspace-puzzle-page .puzzle-review-experience[hidden] { display: none; }
body.workspace-puzzle-page .puzzle-review-experience:not([hidden]) + .puzzle-library-experience,
body.workspace-puzzle-page .puzzle-review-experience:not([hidden]) ~ .puzzle-footer { display: none; }
body.workspace-puzzle-page .my-review-board { width: min(100%, var(--learning-stage-size, var(--review-stage-size, 720px))); justify-self: end; }
body.workspace-puzzle-page .my-review-board .puzzle-board-wrapper,
body.workspace-puzzle-page .my-review-board .puzzle-board-shell { width: var(--learning-stage-size, var(--review-stage-size, 720px)); height: var(--learning-stage-size, var(--review-stage-size, 720px)); max-width: 100%; }
body.workspace-puzzle-page .my-review-board-tools { position: absolute; z-index: 7; inset: 0 auto auto calc(100% + 5px); width: auto; min-height: 0; padding: 0; flex-direction: column; justify-content: flex-start; }
body.workspace-puzzle-page .my-review-board > .board-controls { width: 100%; min-height: 34px; }
body.workspace-puzzle-page .my-review-rail {
  height: var(--learning-stage-size, var(--review-stage-size));
  max-height: var(--learning-stage-size, var(--review-stage-size));
  margin: 0;
  padding: 22px 22px 18px;
  border-radius: 22px;
}
body.workspace-puzzle-page .my-review-rail .puzzle-player-head { padding-bottom: 20px; border-bottom: 1px solid var(--line); }
body.workspace-puzzle-page .my-review-head { align-items: flex-start; }
body.workspace-puzzle-page .my-review-head > div:first-child { min-width: 0; display: grid; justify-items: start; gap: 5px; }
body.workspace-puzzle-page .my-review-rating-card { width: 220px; min-width: 220px; max-width: 220px; flex-basis: 220px; padding: 11px 14px 10px 18px; }
body.workspace-puzzle-page .my-review-rating-card .puzzle-learning-rating-score { grid-template-columns: minmax(0, 1fr) 62px; gap: 7px; }
body.workspace-puzzle-page .my-review-rating-card .puzzle-learning-rating-score strong { font-size: clamp(32px, 2.2vw, 40px); }
body.workspace-puzzle-page .my-review-rating-card .puzzle-learning-rating-delta { width: 62px; min-width: 62px; padding: 7px 8px; font-size: 17px; }
body.workspace-puzzle-page #myPuzzleRatingNote { margin-top: 3px; color: var(--muted); font-size: 10px; }
body.workspace-puzzle-page .my-review-rail .rail-stack {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
body.workspace-puzzle-page .my-review-rail .puzzle-review-experience,
body.workspace-puzzle-page #myPuzzlePlayer {
  display: flex !important;
  flex-direction: column !important;
  grid-template-columns: none !important;
  gap: 14px !important;
  min-height: 0 !important;
  width: 100% !important;
}
body.workspace-puzzle-page .my-review-rail .puzzle-review-experience[hidden],
body.workspace-puzzle-page #myPuzzlePlayer[hidden] {
  display: none !important;
}
body.workspace-puzzle-page #myPuzzlePlayer .puzzle-learning-mission {
  flex: 0 0 auto;
  padding: 16px 0 0;
  width: 100%;
}
body.workspace-puzzle-page .my-review-rail #myPuzzlePlayerTitle:focus { outline: 2px solid color-mix(in srgb, var(--accent) 34%, transparent); outline-offset: 4px; border-radius: 4px; }
body.workspace-puzzle-page .my-review-turn { margin-top: 14px; }
body.workspace-puzzle-page .my-review-context { margin-top: 14px; padding: 12px 14px; border: 1px solid color-mix(in srgb, var(--line) 84%, var(--accent) 16%); border-radius: 14px; background: color-mix(in srgb, var(--surface-soft) 82%, transparent); }
body.workspace-puzzle-page .my-review-theme-list { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
body.workspace-puzzle-page .my-review-theme-list .puzzle-theme-chip { padding: 6px 9px; border-color: color-mix(in srgb, var(--accent) 34%, var(--line)); color: var(--ink); background: color-mix(in srgb, var(--accent) 10%, var(--surface)); font-weight: 800; }
body.workspace-puzzle-page #myPuzzlePlayer .puzzle-learning-response,
body.workspace-puzzle-page .my-review-rail .puzzle-feedback {
  width: 100% !important;
  box-sizing: border-box !important;
  margin: 14px 0 0 !important;
}
body.workspace-puzzle-page #myLibraryMission {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding-top: 12px;
}
body.workspace-puzzle-page #myLibraryMission[hidden] {
  display: none !important;
}
body.workspace-puzzle-page .my-review-rail .search {
  flex: 0 0 40px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  margin: 0 0 10px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface-soft);
}
body.workspace-puzzle-page .my-review-rail .search svg {
  width: 16px;
  height: 16px;
  color: var(--muted);
  flex: 0 0 auto;
}
body.workspace-puzzle-page .my-review-rail .search input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  outline: none;
  font: 500 14px/1.2 var(--sans);
  color: var(--ink);
}
body.workspace-puzzle-page .my-review-rail .search input::placeholder {
  color: var(--faint, var(--muted));
}
body.workspace-puzzle-page .my-review-rail .seg {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding: 3px;
  margin: 0 0 10px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface-soft);
}
body.workspace-puzzle-page .my-review-rail .seg button {
  min-height: 36px;
  border-radius: 11px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: 650 13px/1 var(--sans);
  cursor: pointer;
  transition: background-color .15s ease, color .15s ease;
}
body.workspace-puzzle-page .my-review-rail .seg button.is-active {
  background: var(--surface);
  color: var(--accent-strong);
  font-weight: 700;
  box-shadow: 0 1px 2px color-mix(in srgb, var(--ink) 10%, transparent), 0 8px 18px color-mix(in srgb, var(--ink) 6%, transparent);
}
body.workspace-puzzle-page .puzzle-mistakes-card {
  flex: 0 0 auto;
  margin: 0 0 10px;
  padding: 12px;
  border: 1px solid color-mix(in srgb, var(--accent) 28%, var(--line));
  border-radius: 14px;
  background: color-mix(in srgb, var(--accent) 6%, var(--surface-soft));
}
body.workspace-puzzle-page .puzzle-mistakes-card[hidden],
body.workspace-puzzle-page #puzzleMistakesBody[hidden] { display: none !important; }
body.workspace-puzzle-page .puzzle-mistakes-head,
body.workspace-puzzle-page .puzzle-mistakes-toolbar,
body.workspace-puzzle-page .puzzle-mistakes-actions,
body.workspace-puzzle-page .puzzle-mistake-row,
body.workspace-puzzle-page .puzzle-mistake-row-actions {
  display: flex;
  align-items: center;
}
body.workspace-puzzle-page .puzzle-mistakes-head { justify-content: space-between; gap: 12px; }
body.workspace-puzzle-page .puzzle-mistakes-head > div { display: grid; min-width: 0; gap: 3px; }
body.workspace-puzzle-page .puzzle-mistakes-head strong { color: var(--ink); font: 700 15px/1.2 var(--serif); }
body.workspace-puzzle-page .puzzle-mistakes-head span:last-child { color: var(--muted); font-size: 12px; }
body.workspace-puzzle-page .puzzle-mistakes-toolbar { justify-content: space-between; gap: 10px; margin-top: 10px; }
body.workspace-puzzle-page .puzzle-mistakes-toolbar label { display: flex; align-items: center; gap: 8px; color: var(--muted); font: 700 11px/1 var(--mono); text-transform: uppercase; letter-spacing: .06em; }
body.workspace-puzzle-page .puzzle-mistakes-toolbar .puzzle-select { min-height: 34px; padding: 5px 28px 5px 9px; font: 600 12px/1.2 var(--sans); }
body.workspace-puzzle-page .puzzle-mistakes-list { display: grid; gap: 6px; max-height: 190px; overflow-y: auto; margin-top: 6px; padding-right: 2px; }
body.workspace-puzzle-page .puzzle-mistake-row { display: grid; grid-template-columns: 20px minmax(0, 1fr) auto; gap: 9px; min-height: 48px; padding: 7px 8px; border: 1px solid var(--line); border-radius: 11px; background: var(--surface); }
body.workspace-puzzle-page .puzzle-mistake-check { width: 18px; height: 18px; accent-color: var(--accent); }
body.workspace-puzzle-page .puzzle-mistake-copy { display: grid; gap: 3px; min-width: 0; }
body.workspace-puzzle-page .puzzle-mistake-copy strong { overflow: hidden; color: var(--ink); font: 650 13px/1.2 var(--sans); text-overflow: ellipsis; white-space: nowrap; }
body.workspace-puzzle-page .puzzle-mistake-copy span { color: var(--muted); font-size: 11px; }
body.workspace-puzzle-page .puzzle-mistake-row-actions { justify-content: flex-end; gap: 6px; }
body.workspace-puzzle-page .puzzle-mistake-row-actions .puzzle-button { min-height: 34px; padding: 6px 10px; font-size: 12px; }
body.workspace-puzzle-page .puzzle-mistake-error { max-width: 95px; color: var(--bad, #a63d3d); font-size: 10px; line-height: 1.2; }
body.workspace-puzzle-page .puzzle-mistakes-actions { justify-content: space-between; gap: 10px; margin-top: 9px; }
body.workspace-puzzle-page .puzzle-mistakes-actions > span { color: var(--muted); font-size: 12px; }
body.workspace-puzzle-page .puzzle-mistakes-empty { margin: 4px 0 0; padding: 10px; }
body.workspace-puzzle-page .puzzle-explanation-panel {
  display: grid;
  gap: 8px;
  margin-top: 12px;
  padding: 12px 14px;
  border: 1px solid color-mix(in srgb, var(--accent) 26%, var(--line));
  border-radius: 14px;
  background: color-mix(in srgb, var(--accent) 6%, var(--surface));
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}
body.workspace-puzzle-page .puzzle-explanation-panel[data-verdict="inconclusive"] {
  border-color: color-mix(in srgb, var(--warning, #a66b20) 34%, var(--line));
  background: color-mix(in srgb, var(--warning, #a66b20) 7%, var(--surface));
}
body.workspace-puzzle-page .puzzle-explanation-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
body.workspace-puzzle-page .puzzle-explanation-head strong { color: var(--ink); font: 700 14px/1.2 var(--serif); }
body.workspace-puzzle-page .puzzle-explanation-verdict {
  padding: 4px 7px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font: 800 10px/1 var(--mono);
  letter-spacing: .05em;
  text-transform: uppercase;
}
body.workspace-puzzle-page .puzzle-explanation-panel[data-verdict="inconclusive"] .puzzle-explanation-verdict { background: color-mix(in srgb, var(--warning, #a66b20) 15%, transparent); color: var(--warning, #8a5717); }
body.workspace-puzzle-page .puzzle-explanation-summary,
body.workspace-puzzle-page .puzzle-explanation-mechanism { margin: 0; }
body.workspace-puzzle-page .puzzle-explanation-summary { color: var(--ink); }
body.workspace-puzzle-page .puzzle-explanation-proof { color: var(--muted); font: 700 10px/1.25 var(--mono); }
body.workspace-puzzle-page .puzzle-explanation-panel[data-verdict="unavailable"] {
  border-style: dashed;
  border-color: var(--line);
  background: var(--surface);
}
body.workspace-puzzle-page .puzzle-explanation-retry,
body.workspace-puzzle-page .puzzle-report-open,
body.workspace-puzzle-page .puzzle-report-actions button {
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink);
  font: 700 12px/1 var(--sans);
  cursor: pointer;
}
body.workspace-puzzle-page .puzzle-explanation-retry { justify-self: start; padding: 8px 12px; }
body.workspace-puzzle-page .puzzle-problem-report { display: grid; gap: 8px; margin-top: 10px; }
body.workspace-puzzle-page .puzzle-report-open {
  justify-self: start;
  padding: 8px 12px;
  color: var(--muted);
}
body.workspace-puzzle-page .puzzle-report-form { display: grid; gap: 9px; }
body.workspace-puzzle-page .puzzle-report-form[hidden] { display: none; }
body.workspace-puzzle-page .puzzle-report-form label { display: grid; gap: 5px; color: var(--ink); font-weight: 700; }
body.workspace-puzzle-page .puzzle-report-form select,
body.workspace-puzzle-page .puzzle-report-form textarea {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
}
body.workspace-puzzle-page .puzzle-report-form textarea { min-height: 72px; resize: vertical; }
body.workspace-puzzle-page .puzzle-report-actions { display: flex; gap: 8px; }
body.workspace-puzzle-page .puzzle-report-actions button { padding: 8px 12px; }
body.workspace-puzzle-page .puzzle-report-actions button[type="submit"] { border-color: var(--accent); background: var(--accent); color: white; }
body.workspace-puzzle-page .puzzle-report-actions button:disabled { cursor: wait; opacity: .65; }
body.workspace-puzzle-page .puzzle-report-status { min-height: 1.2em; margin: 0; color: var(--muted); font-size: 11px; }
body.workspace-puzzle-page .puzzle-problem-report[data-status="error"] .puzzle-report-status { color: var(--bad, #a63d3d); }
body.workspace-puzzle-page .puzzle-problem-report[data-status="submitted"] .puzzle-report-status { color: var(--good, #2f7d4a); }
@media (max-width: 620px) {
  body.workspace-puzzle-page .puzzle-mistake-row { grid-template-columns: 20px minmax(0, 1fr); }
  body.workspace-puzzle-page .puzzle-mistake-row-actions { grid-column: 2; justify-content: flex-start; }
  body.workspace-puzzle-page .puzzle-mistakes-toolbar { align-items: flex-end; }
  body.workspace-puzzle-page .puzzle-mistakes-toolbar label { align-items: flex-start; flex-direction: column; }
  body.workspace-puzzle-page .puzzle-mistake-row-actions .puzzle-button,
  body.workspace-puzzle-page .puzzle-mistakes-actions .puzzle-button { min-height: 44px; }
  body.workspace-puzzle-page .puzzle-explanation-retry,
  body.workspace-puzzle-page .puzzle-report-open,
  body.workspace-puzzle-page .puzzle-report-actions button { min-height: 44px; }
}
body.workspace-puzzle-page .my-review-rail .mp-list {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-right: 2px;
}
body.workspace-puzzle-page .my-review-rail .mp-row {
  flex: 0 0 auto;
  border-radius: 13px;
  border: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  background: linear-gradient(180deg, var(--surface), var(--surface-soft));
  margin-bottom: 0;
  transition: border-color .16s ease, background-color .16s ease;
}
body.workspace-puzzle-page .my-review-rail .mp-row:hover {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--line));
}
body.workspace-puzzle-page .my-review-rail .mp-row.is-selected,
body.workspace-puzzle-page .my-review-rail .mp-row.is-open {
  border-color: color-mix(in srgb, var(--accent) 48%, var(--line));
  background: color-mix(in srgb, var(--accent) 8%, var(--surface));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 15%, transparent);
}
body.workspace-puzzle-page .my-review-rail .mp-row-grid {
  display: grid;
  grid-template-columns: 8px minmax(0, 1fr) auto 28px;
  gap: 12px;
  align-items: center;
  padding: 10px 14px 10px 12px;
  min-height: 52px;
  cursor: pointer;
}
body.workspace-puzzle-page .my-review-rail .mp-thumb {
  display: none !important;
}
body.workspace-puzzle-page .my-review-rail .mp-pip {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--line);
  flex: none;
}
body.workspace-puzzle-page .my-review-rail .mp-row.is-due .mp-pip,
body.workspace-puzzle-page .my-review-rail .mp-pip.is-due {
  background: var(--accent);
}
body.workspace-puzzle-page .my-review-rail .mp-row.is-mastered .mp-pip,
body.workspace-puzzle-page .my-review-rail .mp-pip.is-mastered {
  background: var(--good, #1f7652);
}
body.workspace-puzzle-page .my-review-rail .mp-title-line {
  overflow: hidden;
  color: var(--ink);
  font: 600 14px/1.25 var(--serif);
  letter-spacing: -.02em;
  white-space: nowrap;
  text-overflow: ellipsis;
}
body.workspace-puzzle-page .my-review-rail .mp-sub-line {
  overflow: hidden;
  margin-top: 2px;
  color: var(--muted);
  font-size: 11.5px;
  white-space: nowrap;
  text-overflow: ellipsis;
}
body.workspace-puzzle-page .my-review-rail .mp-detail {
  margin: 0 14px 10px 32px;
}
body.workspace-puzzle-page .my-review-rail .puzzle-session-actions { margin-top: auto; }

/* ===== Phase D: Dashboard ===== */
body.workspace-puzzle-page .dashboard-body { display: flex; flex-direction: column; gap: 16px; }
body.workspace-puzzle-page .dashboard-evidence-meta {
  max-width: 920px;
  margin: -4px 0 2px;
  line-height: 1.55;
}
body.workspace-puzzle-page .dashboard-recommendation-reason {
  display: block;
  max-width: 44ch;
}
body.workspace-puzzle-page .puzzle-section-panel { display: flex; flex-direction: column; gap: 16px; min-height: 0; }
body.workspace-puzzle-page .catalog-stats { grid-template-columns: repeat(4,1fr); }
body.workspace-puzzle-page .saved-stats { grid-template-columns: repeat(3,1fr); }
body.workspace-puzzle-page .stat-row { gap: 14px; }
body.workspace-puzzle-page .card.stat-card,
body.workspace-puzzle-page .puzzle-card {
  border: 1px solid var(--workspace-border);
  border-radius: 24px;
  background: var(--workspace-panel);
  box-shadow: 0 18px 54px color-mix(in srgb, var(--ink) 9%, transparent), inset 0 1px 0 color-mix(in srgb, #fff 48%, transparent);
}
body.workspace-puzzle-page .card.stat-card { min-height: 142px; padding: 22px; overflow: hidden; }
body.workspace-puzzle-page .card.stat-card::before {
  width: 3px;
  background: linear-gradient(var(--accent), color-mix(in srgb, var(--accent) 20%, transparent));
}
body.workspace-puzzle-page .stat-num { color: var(--ink); font-family: var(--serif); font-size: clamp(28px,3vw,40px); font-weight: 600; }
body.workspace-puzzle-page .stat-sub { color: var(--muted); }
body.workspace-puzzle-page .puzzle-grid { grid-template-columns: minmax(0,1.48fr) minmax(300px,.72fr); gap: 22px; }
body.workspace-puzzle-page .puzzle-card { overflow: hidden; }
body.workspace-puzzle-page .puzzle-card-pad { padding: clamp(22px,3vw,34px); }
body.workspace-puzzle-page .puzzle-player-head h2,
body.workspace-puzzle-page .puzzle-controls h2 { color: var(--ink); font-family: var(--serif); letter-spacing: -.025em; }
body.workspace-puzzle-page .puzzle-kicker { color: var(--accent-strong); }
body.workspace-puzzle-page .puzzle-board-shell {
  width: min(var(--board-size), 100%);
  aspect-ratio: 1;
  border-radius: 19px;
  box-shadow: 0 20px 54px color-mix(in srgb, var(--ink) 20%, transparent);
}
body.workspace-puzzle-page .puzzle-board { border-radius: 13px; overflow: hidden; width: 100%; height: 100%; }

/* ===== Phase E: Learning solver ===== */
body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout),
body.workspace-puzzle-page.is-config-phase,
body.workspace-puzzle-page.is-my-puzzles-phase {
  --page-pad-x: 12px;
  --learning-rail-w: clamp(580px, 43.5vw, 650px);
  --learning-anchor-gap: 16px;
  --learning-gap: 48px;
  --learning-board-top: 0px;
  --learning-anchor-stage-size: min(
    calc(100dvh - var(--header-h) - (2 * var(--page-pad-y)) - 98px),
    calc(100dvw - var(--sidebar-w) - var(--learning-rail-w) - var(--learning-anchor-gap) - (2 * var(--page-pad-x))),
    920px
  );
  --learning-board-slot: calc((100dvw - var(--sidebar-w) - (2 * var(--page-pad-x)) + var(--learning-anchor-stage-size) - var(--learning-rail-w) - var(--learning-anchor-gap)) / 2);
  --learning-stage-size: min(
    calc(100dvh - var(--header-h) - (2 * var(--page-pad-y))),
    var(--learning-board-slot),
    920px
  );
  --review-stage-size: var(--learning-stage-size);
  --review-board-slot: var(--learning-board-slot);
}
body.workspace-puzzle-page.is-solver-phase .workspace-footer { display: none; }
body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout) #catalogSectionPanel,
body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout) #practiceMode.active { flex: 1 1 auto; min-height: 0; }
body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout) #puzzleModeTabs { display: none; }
body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout) #puzzlePageStatus:empty { display: none; }
body.workspace-puzzle-page #practiceMode:not(.active) { display: none; }
body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout) #practiceMode.active { display: flex; }
body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout) .catalog-stats { display: none; }
body.workspace-puzzle-page .puzzle-learning-layout {
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, var(--learning-board-slot, 720px)) minmax(0, 1fr);
  gap: var(--learning-gap, 48px);
  align-items: start;
}
body.workspace-puzzle-page .puzzle-learning-board {
  width: min(100%, var(--learning-stage-size, 720px));
  min-width: 0;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
}
body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout) .puzzle-learning-board { justify-self: end; }
body.workspace-puzzle-page .puzzle-learning-board-status,
body.workspace-puzzle-page .puzzle-learning-board-tools {
  width: min(100%, var(--learning-stage-size, 720px));
  min-height: 34px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 12px;
}
body.workspace-puzzle-page .puzzle-learning-board-status > :first-child { color: var(--ink); font-size: 14px; font-weight: 700; }
body.workspace-puzzle-page .puzzle-learning-board-status .telemetry-chip { margin-left: auto; }
body.workspace-puzzle-page .puzzle-learning-board-status .puzzle-meta { padding: 0; border: 0; background: none; color: var(--muted); }
body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout) .puzzle-learning-board-status { display: none; }
body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout) .puzzle-learning-board .puzzle-board-shell {
  width: var(--learning-stage-size);
  max-width: 100%;
}
body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout) .puzzle-learning-board .puzzle-board-wrapper {
  width: var(--learning-stage-size);
  max-width: 100%;
}
body.workspace-puzzle-page .puzzle-learning-board-tools > div { display: flex; align-items: center; gap: 4px; }
body.workspace-puzzle-page .puzzle-learning-tool {
  min-height: 36px;
  padding: 0 10px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
}
body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout) .puzzle-learning-board-tools {
  position: absolute;
  z-index: 7;
  inset: 0 auto auto calc(100% + 5px);
  width: auto;
  min-height: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
body.workspace-puzzle-page .puzzle-learning-settings {
  border-color: color-mix(in srgb, var(--line) 88%, transparent);
  background: color-mix(in srgb, var(--surface) 96%, transparent);
  box-shadow: 0 6px 18px color-mix(in srgb, var(--ink) 12%, transparent);
}
body.workspace-puzzle-page .puzzle-learning-settings-menu {
  position: absolute;
  inset: calc(100% + 6px) auto auto 0;
  display: flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  border-radius: 13px;
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  box-shadow: 0 10px 28px color-mix(in srgb, var(--ink) 20%, transparent);
  backdrop-filter: blur(12px);
}
body.workspace-puzzle-page .puzzle-learning-settings-menu[hidden] { display: none; }
@media (min-width: 1181px) {
  body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout) .puzzle-learning-tool {
    width: 38px;
    min-width: 38px;
    height: 38px;
    min-height: 38px;
    padding: 0;
    display: inline-grid;
    place-items: center;
  }
}
body.workspace-puzzle-page .puzzle-learning-tool svg { width: 19px; height: 19px; display: block; }
body.workspace-puzzle-page .puzzle-learning-tool .coordinate-icon { font: 800 12px/1 var(--mono); letter-spacing: -.04em; }
body.workspace-puzzle-page .puzzle-learning-tool:hover,
body.workspace-puzzle-page .puzzle-learning-tool.active { color: var(--accent-strong); background: var(--accent-soft); }
body.workspace-puzzle-page .puzzle-learning-tool:focus-visible,
body.workspace-puzzle-page .puzzle-learning-save:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
body.workspace-puzzle-page .puzzle-learning-card {
  min-width: 0;
  height: var(--learning-stage-size, auto);
  max-height: var(--learning-stage-size, none);
  display: flex;
  flex-direction: column;
  align-self: start;
  margin-top: var(--learning-board-top);
  padding: clamp(24px, 2.2vw, 30px);
  overflow-y: auto;
  border-radius: 22px;
}
body.workspace-puzzle-page .puzzle-learning-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}
body.workspace-puzzle-page .puzzle-learning-card-head > div:first-child {
  min-width: 0;
  display: grid;
  justify-items: start;
  gap: 9px;
}
body.workspace-puzzle-page .puzzle-learning-card-head .puzzle-kicker {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin: 0;
  padding: 6px 9px;
  border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--line));
  border-radius: 999px;
  background: linear-gradient(145deg, color-mix(in srgb, var(--accent) 12%, var(--surface)), color-mix(in srgb, var(--accent) 6%, var(--surface-soft)));
  box-shadow: inset 0 1px 0 color-mix(in srgb, #fff 28%, transparent);
}
body.workspace-puzzle-page .puzzle-learning-card-head .puzzle-kicker::before {
  content: '';
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 12%, transparent);
}
body.workspace-puzzle-page .puzzle-learning-mode {
  max-width: 18ch;
  margin: 0;
  color: var(--ink);
  font: 720 clamp(21px, 1.55vw, 25px)/1.08 var(--serif);
  letter-spacing: -.025em;
  text-wrap: balance;
}
body.workspace-puzzle-page .puzzle-learning-rating { display: flex; align-items: flex-start; gap: 10px; text-align: right; }
body.workspace-puzzle-page .puzzle-learning-rating-card,
body.workspace-puzzle-page .puzzle-config-rating-card,
body.workspace-puzzle-page .my-review-rating-card {
  position: relative;
  width: 240px;
  min-width: 240px;
  max-width: 240px;
  flex: 0 0 240px;
  padding: 14px 16px 13px 21px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--line) 88%, transparent);
  border-radius: 14px;
  background: linear-gradient(145deg, color-mix(in srgb, var(--surface-soft) 82%, var(--surface)), var(--surface));
  box-shadow: inset 0 1px 0 color-mix(in srgb, #fff 45%, transparent), 0 7px 20px color-mix(in srgb, var(--ink) 8%, transparent);
  text-align: left;
}
body.workspace-puzzle-page .puzzle-learning-rating-card::after,
body.workspace-puzzle-page .puzzle-config-rating-card::after,
body.workspace-puzzle-page .my-review-rating-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 32%, color-mix(in srgb, var(--rating-event-color, var(--accent)) 24%, transparent) 49%, transparent 66%);
  opacity: 0;
  transform: translateX(-115%);
  pointer-events: none;
}
body.workspace-puzzle-page .puzzle-learning-rating-card::before,
body.workspace-puzzle-page .puzzle-config-rating-card::before,
body.workspace-puzzle-page .my-review-rating-card::before {
  content: '';
  position: absolute;
  inset: 10px auto 10px 0;
  width: 4px;
  border-radius: 2px;
  background: var(--accent);
  opacity: .48;
  transform: scaleY(.55);
  transform-origin: center;
  pointer-events: none;
}
body.workspace-puzzle-page .puzzle-learning-rating-label,
body.workspace-puzzle-page .puzzle-learning-rating-card > span,
body.workspace-puzzle-page .puzzle-config-rating-card > span,
body.workspace-puzzle-page .my-review-rating-card > span { display: block; }
body.workspace-puzzle-page .puzzle-learning-rating-label {
  margin: 0 0 3px;
  color: var(--accent-strong);
  font: 800 9px/1.2 var(--sans);
  letter-spacing: .12em;
  text-transform: uppercase;
}
body.workspace-puzzle-page .puzzle-learning-rating-score {
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 70px;
  align-items: center;
  gap: 10px;
}
body.workspace-puzzle-page .puzzle-learning-rating-score strong {
  display: block;
  min-width: 0;
  width: 100%;
  color: var(--ink);
  font: 720 clamp(38px, 2.7vw, 46px)/1 var(--serif);
  font-variant-numeric: tabular-nums;
  font-feature-settings: 'tnum' 1, 'lnum' 1;
  letter-spacing: -.045em;
  white-space: nowrap;
  transform-origin: left center;
}
body.workspace-puzzle-page .puzzle-learning-rating-delta {
  width: 70px;
  min-width: 70px;
  padding: 8px 9px;
  border: 1px solid color-mix(in srgb, var(--good) 38%, transparent);
  border-radius: 999px;
  color: color-mix(in srgb, var(--good) 88%, #fff);
  background: linear-gradient(145deg, color-mix(in srgb, var(--good) 24%, var(--surface)), color-mix(in srgb, var(--good) 13%, var(--surface)));
  box-shadow: inset 0 1px 0 color-mix(in srgb, #fff 12%, transparent), 0 5px 16px color-mix(in srgb, var(--good) 14%, transparent);
  font: 900 20px/1 var(--mono);
  font-variant-numeric: tabular-nums;
  text-align: center;
}
body.workspace-puzzle-page .puzzle-learning-rating-delta.is-loss {
  border-color: color-mix(in srgb, var(--bad) 38%, transparent);
  color: color-mix(in srgb, var(--bad) 88%, #fff);
  background: linear-gradient(145deg, color-mix(in srgb, var(--bad) 24%, var(--surface)), color-mix(in srgb, var(--bad) 13%, var(--surface)));
  box-shadow: inset 0 1px 0 color-mix(in srgb, #fff 10%, transparent), 0 5px 16px color-mix(in srgb, var(--bad) 13%, transparent);
}
body.workspace-puzzle-page #solverTargetRating { margin-top: 5px; color: var(--muted); font-size: 10.5px; }
body.workspace-puzzle-page .puzzle-learning-rating-card.is-rating-gain { --rating-event-color: var(--good); }
body.workspace-puzzle-page .puzzle-learning-rating-card.is-rating-loss { --rating-event-color: var(--bad); }
body.workspace-puzzle-page .puzzle-learning-rating-card.is-rating-gain::before { background: var(--good); opacity: .82; }
body.workspace-puzzle-page .puzzle-learning-rating-card.is-rating-loss::before { background: var(--bad); opacity: .78; }
body.workspace-puzzle-page .puzzle-learning-rating-card.is-rating-up,
body.workspace-puzzle-page .puzzle-learning-rating-card.is-rating-down {
  animation: rating-card-lift 1760ms cubic-bezier(.16,1,.3,1) both, rating-surface-settle 1760ms ease-out both;
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--rating-event-color) 44%, transparent), 0 18px 48px color-mix(in srgb, var(--rating-event-color) 24%, transparent);
}
body.workspace-puzzle-page .puzzle-learning-rating-card:is(.is-rating-up,.is-rating-down)::before {
  animation: rating-accent-draw 1480ms cubic-bezier(.16,1,.3,1) both;
}
body.workspace-puzzle-page .puzzle-learning-rating-card:is(.is-rating-up,.is-rating-down) .puzzle-learning-rating-score strong {
  animation: rating-number-settle 1420ms cubic-bezier(.16,1,.3,1) both;
  color: color-mix(in srgb, var(--rating-event-color) 82%, var(--ink));
}
body.workspace-puzzle-page .puzzle-learning-rating-card:is(.is-rating-up,.is-rating-down) .puzzle-learning-rating-delta {
  animation: rating-delta-reveal 1120ms cubic-bezier(.16,1,.3,1) 110ms both;
}
body.workspace-puzzle-page .puzzle-learning-rating-card:is(.is-rating-up,.is-rating-down)::after {
  animation: rating-light-sweep 1280ms cubic-bezier(.2,.7,.25,1) 80ms both;
}
@keyframes rating-card-lift {
  0% { transform: translateY(0) scale(1); }
  20% { transform: translateY(-6px) scale(1.055); }
  52% { transform: translateY(-3px) scale(1.025); }
  100% { transform: translateY(0) scale(1); }
}
@keyframes rating-surface-settle {
  0% { background-color: color-mix(in srgb, var(--rating-event-color) 28%, var(--surface)); border-color: color-mix(in srgb, var(--rating-event-color) 82%, var(--line)); }
  45% { background-color: color-mix(in srgb, var(--rating-event-color) 15%, var(--surface)); border-color: color-mix(in srgb, var(--rating-event-color) 58%, var(--line)); }
  100% { background-color: transparent; border-color: color-mix(in srgb, var(--line) 88%, transparent); }
}
@keyframes rating-accent-draw {
  0% { transform: scaleY(.08); opacity: 0; }
  42% { transform: scaleY(1); opacity: 1; }
  100% { transform: scaleY(.72); opacity: .82; }
}
@keyframes rating-number-settle {
  0% { opacity: .2; filter: blur(5px); transform: translateY(18px) scale(.84); }
  50% { opacity: 1; filter: blur(0); transform: translateY(-4px) scale(1.11); }
  100% { opacity: 1; filter: blur(0); transform: translateY(0); }
}
@keyframes rating-delta-reveal {
  0% { opacity: 0; filter: blur(5px); transform: translateY(18px) scale(.55); }
  58% { opacity: 1; filter: blur(0); transform: translateY(-4px) scale(1.22); }
  100% { opacity: 1; filter: blur(0); transform: translateY(0) scale(1); }
}
@keyframes rating-light-sweep {
  0% { opacity: 0; transform: translateX(-115%); }
  24% { opacity: .9; }
  100% { opacity: 0; transform: translateX(115%); }
}
body.workspace-puzzle-page .puzzle-learning-save {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  font-size: 20px;
}
body.workspace-puzzle-page .puzzle-learning-save:hover,
body.workspace-puzzle-page .puzzle-learning-save.is-saved { border-color: color-mix(in srgb, var(--accent) 48%, var(--line)); background: var(--accent-soft); color: var(--accent-strong); }
body.workspace-puzzle-page .puzzle-learning-mission { padding: clamp(20px, 2.4vh, 26px) 0 19px; }
body.workspace-puzzle-page .puzzle-turn-banner {
  display: flex;
  align-items: center;
  gap: 13px;
  min-height: 62px;
  margin-bottom: 22px;
  padding: 12px 15px;
  border: 1px solid color-mix(in srgb, var(--accent) 38%, var(--line));
  border-radius: 15px;
  background: linear-gradient(110deg, color-mix(in srgb, var(--accent) 12%, var(--surface)), color-mix(in srgb, var(--accent) 5%, var(--surface-soft)));
  box-shadow: inset 0 1px 0 color-mix(in srgb, #fff 34%, transparent), 0 8px 24px color-mix(in srgb, var(--accent) 8%, transparent);
}
body.workspace-puzzle-page .puzzle-turn-piece {
  width: 29px;
  height: 29px;
  flex: 0 0 auto;
  border: 3px solid color-mix(in srgb, var(--ink) 65%, transparent);
  border-radius: 50%;
  background: #f6f3ea;
  box-shadow: 0 2px 7px color-mix(in srgb, #000 24%, transparent);
}
body.workspace-puzzle-page .puzzle-turn-copy { display: grid; gap: 3px; }
body.workspace-puzzle-page .puzzle-turn-copy small { color: var(--accent-strong); font: 800 9px/1 var(--sans); letter-spacing: .13em; text-transform: uppercase; }
body.workspace-puzzle-page .puzzle-turn-copy strong { color: var(--ink); font: 720 17px/1.1 var(--serif); letter-spacing: -.01em; }
body.workspace-puzzle-page .puzzle-turn-banner.is-black-turn .puzzle-turn-piece { border-color: color-mix(in srgb, #fff 20%, transparent); background: #202225; box-shadow: inset 0 1px 0 color-mix(in srgb, #fff 16%, transparent), 0 2px 7px color-mix(in srgb, #000 30%, transparent); }
body.workspace-puzzle-page .puzzle-turn-banner.is-waiting { opacity: .68; }
body.workspace-puzzle-page .puzzle-turn-banner.is-waiting .puzzle-turn-piece { background: color-mix(in srgb, var(--muted) 28%, var(--surface)); }
body.workspace-puzzle-page .puzzle-learning-mission > .puzzle-kicker { margin: 0 0 10px; }
body.workspace-puzzle-page .puzzle-learning-mission h2 { margin: 0; color: var(--ink); font: 700 clamp(30px, 2.5vw, 38px)/1.08 var(--serif); letter-spacing: -.025em; }
body.workspace-puzzle-page .puzzle-learning-mission > p:not(.puzzle-kicker) { margin: 14px 0 0; color: var(--muted); font-size: 13px; line-height: 1.58; }
body.workspace-puzzle-page .puzzle-learning-mission .puzzle-learning-rule { padding-left: 11px; border-left: 2px solid color-mix(in srgb, var(--accent) 48%, var(--line)); font-size: 11.5px; }
body.workspace-puzzle-page .puzzle-learning-response {
  min-height: 92px;
  margin: 0;
  padding: 18px 19px;
  border: 1px solid color-mix(in srgb, var(--accent) 18%, var(--line));
  border-left: 3px solid var(--accent);
  border-radius: 14px;
  background: color-mix(in srgb, var(--accent-soft) 62%, var(--surface));
  color: var(--ink);
}
body.workspace-puzzle-page .puzzle-learning-response.is-wrong,
body.workspace-puzzle-page .puzzle-learning-response.error { border-color: color-mix(in srgb, var(--bad) 22%, var(--line)); border-left-color: var(--bad); background: color-mix(in srgb, var(--bad) 6%, var(--surface)); }
body.workspace-puzzle-page .puzzle-learning-response.is-correct { border-color: color-mix(in srgb, var(--good) 22%, var(--line)); border-left-color: var(--good); background: color-mix(in srgb, var(--good) 6%, var(--surface)); }
body.workspace-puzzle-page .puzzle-learning-response > strong { display: block; color: var(--ink); font: 700 17px/1.25 var(--serif); letter-spacing: -.01em; }
body.workspace-puzzle-page .puzzle-learning-response > p { margin: 5px 0 0; color: var(--muted); font-size: 12.5px; line-height: 1.5; }
body.workspace-puzzle-page .puzzle-learning-response.has-result {
  position: relative;
  padding-bottom: 16px;
  border: 1px solid color-mix(in srgb, var(--good) 24%, var(--line));
  background:
    radial-gradient(circle at 5% 7%, color-mix(in srgb, var(--good) 12%, transparent), transparent 130px),
    linear-gradient(155deg, color-mix(in srgb, var(--surface) 96%, var(--good) 4%), color-mix(in srgb, var(--surface-soft) 92%, var(--surface)));
  box-shadow: inset 0 1px 0 color-mix(in srgb, #fff 7%, transparent), 0 20px 50px color-mix(in srgb, #000 12%, transparent);
}
body.workspace-puzzle-page .puzzle-learning-response.has-result::before {
  content: '\2713';
  position: absolute;
  inset: 15px auto auto 16px;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: color-mix(in srgb, var(--good) 16%, var(--surface));
  color: var(--good);
  font: 900 16px/1 var(--sans);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--good) 28%, transparent);
}
body.workspace-puzzle-page .puzzle-learning-response.has-result.is-assisted-result::before { content: '\2197'; background: color-mix(in srgb, var(--accent) 15%, var(--surface)); color: var(--accent-strong); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 30%, transparent); }
body.workspace-puzzle-page .puzzle-learning-response.has-result > strong,
body.workspace-puzzle-page .puzzle-learning-response.has-result > p { margin-left: 46px; }
body.workspace-puzzle-page .puzzle-learning-actions { position: relative; z-index: 10; min-height: 64px; margin-top: auto; padding-top: 22px; border-top: 1px solid var(--line); }
body.workspace-puzzle-page .puzzle-learning-actions #puzzleNext { margin-left: auto; }
body.workspace-puzzle-page .puzzle-auto-next {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
}
body.workspace-puzzle-page .puzzle-auto-next[hidden] { display: none; }
body.workspace-puzzle-page .puzzle-auto-next input {
  appearance: none;
  -webkit-appearance: none;
  width: 32px;
  height: 18px;
  margin: 0;
  flex: 0 0 32px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--muted) 45%, var(--line));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, #000 12%, transparent);
  position: relative;
  cursor: pointer;
  transition: background 0.16s ease;
}
body.workspace-puzzle-page .puzzle-auto-next input::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 2px color-mix(in srgb, #000 28%, transparent);
  transition: transform 0.16s ease;
}
body.workspace-puzzle-page .puzzle-auto-next input:checked {
  background: #629924;
}
body.workspace-puzzle-page .puzzle-auto-next input:checked::after {
  transform: translateX(14px);
}
body.workspace-puzzle-page .puzzle-auto-next input:focus-visible {
  outline: 2px solid var(--accent-strong, #c9a227);
  outline-offset: 2px;
}
body.workspace-puzzle-page .puzzle-review-nav {
  display: inline-grid;
  grid-template-columns: 42px minmax(58px, auto) 42px;
  align-items: center;
  min-height: 42px;
  padding: 3px;
  border: 1px solid color-mix(in srgb, var(--accent) 24%, var(--line));
  border-radius: 14px;
  background: linear-gradient(145deg, color-mix(in srgb, var(--surface-soft) 84%, var(--surface)), var(--surface));
  box-shadow: inset 0 1px 0 color-mix(in srgb, #fff 9%, transparent), 0 8px 22px color-mix(in srgb, #000 10%, transparent);
}
body.workspace-puzzle-page .puzzle-review-nav[hidden] { display: none; }
body.workspace-puzzle-page .puzzle-review-button {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: color 150ms ease, background-color 150ms ease, transform 150ms ease;
}
body.workspace-puzzle-page .puzzle-review-button svg { width: 19px; height: 19px; }
body.workspace-puzzle-page .puzzle-review-button:hover:not(:disabled) { background: var(--accent-soft); color: var(--accent-strong); transform: translateY(-1px); }
body.workspace-puzzle-page .puzzle-review-button:focus-visible { outline: 2px solid var(--focus); outline-offset: 1px; }
body.workspace-puzzle-page .puzzle-review-button:disabled { color: color-mix(in srgb, var(--muted) 42%, transparent); cursor: default; }
body.workspace-puzzle-page .puzzle-review-progress { color: var(--muted); font: 760 11px/1 var(--mono); font-feature-settings: 'tnum' 1; text-align: center; }
body.workspace-puzzle-page .puzzle-learning-result { display: grid; gap: 14px; margin: 18px 0 0; color: var(--ink); }
body.workspace-puzzle-page .puzzle-result-comparison {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  padding: 5px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--accent) 23%, var(--line));
  border-radius: 16px;
  background:
    radial-gradient(circle at 50% -30%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 62%),
    color-mix(in srgb, var(--surface-soft) 78%, var(--surface));
  box-shadow: inset 0 1px 0 color-mix(in srgb, #fff 10%, transparent), 0 12px 30px color-mix(in srgb, #000 9%, transparent);
}
body.workspace-puzzle-page .puzzle-result-comparison::before {
  content: '';
  position: absolute;
  inset: 0 18% auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--accent) 78%, #fff), transparent);
  opacity: .78;
}
body.workspace-puzzle-page .puzzle-result-move { position: relative; min-width: 0; padding: 14px 16px 15px; overflow: hidden; border: 0; border-radius: 11px; background: color-mix(in srgb, var(--surface) 92%, transparent); box-shadow: inset 0 1px 0 color-mix(in srgb, #fff 5%, transparent); }
body.workspace-puzzle-page .puzzle-result-move:only-child { grid-column: 1 / -1; }
body.workspace-puzzle-page .puzzle-result-move::after { content: ''; position: absolute; inset: 0 auto 0 0; width: 3px; background: currentColor; opacity: .82; }
body.workspace-puzzle-page .puzzle-result-move.is-user-move { color: var(--bad); background: linear-gradient(135deg, color-mix(in srgb, var(--bad) 11%, var(--surface)), color-mix(in srgb, var(--surface) 94%, transparent)); }
body.workspace-puzzle-page .puzzle-result-move.is-best-move { color: var(--good); background: linear-gradient(135deg, color-mix(in srgb, var(--good) 12%, var(--surface)), color-mix(in srgb, var(--surface) 94%, transparent)); }
body.workspace-puzzle-page .puzzle-result-move-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
body.workspace-puzzle-page .puzzle-result-move-label,
body.workspace-puzzle-page .puzzle-result-label { display: block; color: var(--muted); font: 700 9px/1.25 var(--sans); letter-spacing: .11em; text-transform: uppercase; }
body.workspace-puzzle-page .puzzle-result-move-badge { padding: 4px 7px; border: 1px solid color-mix(in srgb, currentColor 26%, transparent); border-radius: 999px; background: color-mix(in srgb, currentColor 9%, transparent); color: currentColor; font: 760 8px/1 var(--sans); letter-spacing: .08em; text-transform: uppercase; }
body.workspace-puzzle-page .puzzle-result-move strong { display: block; margin-top: 9px; color: var(--ink); font: 760 23px/1.05 var(--mono); letter-spacing: .015em; text-shadow: 0 1px 14px color-mix(in srgb, currentColor 12%, transparent); }
body.workspace-puzzle-page .puzzle-result-move.is-user-move strong { color: color-mix(in srgb, var(--bad) 80%, var(--ink)); }
body.workspace-puzzle-page .puzzle-result-move.is-best-move strong { color: color-mix(in srgb, var(--good) 82%, var(--ink)); }
body.workspace-puzzle-page .puzzle-result-line {
  position: relative;
  overflow: hidden;
  padding: 16px 17px 17px;
  border: 1px solid color-mix(in srgb, var(--accent) 34%, var(--line));
  border-radius: 13px;
  background:
    radial-gradient(circle at 96% 0, color-mix(in srgb, var(--accent) 13%, transparent), transparent 120px),
    linear-gradient(145deg, color-mix(in srgb, var(--accent) 8%, var(--surface)), color-mix(in srgb, var(--surface-soft) 76%, var(--surface)));
  box-shadow: inset 0 1px 0 color-mix(in srgb, #fff 12%, transparent), 0 10px 24px color-mix(in srgb, var(--ink) 7%, transparent);
}
body.workspace-puzzle-page .puzzle-result-line::before {
  content: '';
  position: absolute;
  inset: 0 20px auto;
  height: 2px;
  border-radius: 0 0 2px 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: .72;
}
body.workspace-puzzle-page .puzzle-result-line .puzzle-result-label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: color-mix(in srgb, var(--accent-strong) 82%, var(--muted));
}
body.workspace-puzzle-page .puzzle-result-line .puzzle-result-label::before {
  content: '\25C7';
  color: var(--accent);
  font-size: 10px;
}
body.workspace-puzzle-page .puzzle-result-variation { display: flex; flex-wrap: wrap; align-items: center; gap: 0; margin: 12px 0 0; padding: 0; list-style: none; }
body.workspace-puzzle-page .puzzle-result-variation li { display: inline-flex; align-items: center; white-space: nowrap; }
body.workspace-puzzle-page .puzzle-result-variation li + li::before { content: '\2014'; margin: 0 10px; color: var(--accent-strong); font: 600 14px/1 var(--mono); opacity: .78; }
body.workspace-puzzle-page .puzzle-result-variation strong {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  padding: 5px 9px;
  border: 1px solid color-mix(in srgb, var(--line) 88%, transparent);
  border-radius: 8px;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  color: var(--ink);
  box-shadow: inset 0 1px 0 color-mix(in srgb, #fff 12%, transparent);
  font: 720 14px/1.25 var(--mono);
  letter-spacing: .01em;
}
body.workspace-puzzle-page .puzzle-result-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--line) 90%, transparent);
  border-radius: 12px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--surface-soft) 74%, var(--surface)), var(--surface));
  box-shadow: inset 0 1px 0 color-mix(in srgb, #fff 7%, transparent);
}
body.workspace-puzzle-page .puzzle-result-fact {
  position: relative;
  min-width: 0;
  padding: 11px 12px 12px;
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}
body.workspace-puzzle-page .puzzle-result-fact::before {
  content: '';
  position: absolute;
  inset: 0 auto auto 12px;
  width: 24px;
  height: 2px;
  background: color-mix(in srgb, var(--accent) 58%, transparent);
}
body.workspace-puzzle-page .puzzle-result-fact + .puzzle-result-fact { border-left: 1px solid color-mix(in srgb, var(--line) 88%, transparent); }
body.workspace-puzzle-page .puzzle-result-facts dt { color: color-mix(in srgb, var(--muted) 88%, var(--accent)); font: 800 8px/1 var(--sans); letter-spacing: .11em; text-transform: uppercase; }
body.workspace-puzzle-page .puzzle-result-facts dd { min-width: 0; margin: 7px 0 0; color: var(--ink); font: 720 12px/1.3 var(--sans); text-align: left; overflow-wrap: anywhere; }
body.workspace-puzzle-page .puzzle-learning-card.has-terminal-result .puzzle-learning-mission { display: none; }
body.workspace-puzzle-page .puzzle-learning-card.has-terminal-result .puzzle-learning-response {
  flex: 0 0 auto;
  margin-top: 20px;
  padding: 15px 16px 16px;
}
body.workspace-puzzle-page .puzzle-learning-card.has-terminal-result .puzzle-learning-result { margin-top: 13px; }
body.workspace-puzzle-page .puzzle-learning-card.has-terminal-result .puzzle-result-move { padding: 10px 12px; }
body.workspace-puzzle-page .puzzle-learning-card.has-terminal-result .puzzle-result-line { padding: 11px 12px 12px; }
body.workspace-puzzle-page .puzzle-learning-card.has-terminal-result .puzzle-result-variation { margin-top: 8px; }
body.workspace-puzzle-page .puzzle-learning-card.has-terminal-result .puzzle-result-facts { gap: 0; padding: 0; }
body.workspace-puzzle-page .puzzle-learning-card.has-terminal-result .puzzle-learning-actions { min-height: 54px; padding-top: 14px; }
body.workspace-puzzle-page .puzzle-runtime-controls { display: none !important; }
body.workspace-puzzle-page .puzzle-button { border-color: var(--line); background: var(--surface-soft); color: var(--ink); }
body.workspace-puzzle-page .puzzle-button.brass { border-color: color-mix(in srgb, var(--accent) 46%, var(--line)); background: var(--accent-soft); color: var(--accent-strong); }
body.workspace-puzzle-page .puzzle-button.primary { color: var(--on-accent, #fff); }
body.workspace-puzzle-page .puzzle-field select,
body.workspace-puzzle-page .puzzle-select {
  min-height: 46px;
  border-color: var(--line);
  border-radius: 12px;
  background: var(--surface);
  color: var(--ink);
}
body.workspace-puzzle-page .puzzle-select option { color: var(--ink); background: var(--surface); }
body.workspace-puzzle-page .puzzle-note,
body.workspace-puzzle-page .puzzle-feedback {
  border-radius: 14px;
  background: color-mix(in srgb, var(--surface-soft) 82%, transparent);
}
body.workspace-puzzle-page .daily-puzzle-banner {
  border: 1px solid color-mix(in srgb, var(--accent) 33%, var(--line));
  border-radius: 20px;
  background:
    radial-gradient(circle at 89% 50%, color-mix(in srgb, var(--accent) 21%, transparent), transparent 18rem),
    linear-gradient(110deg, color-mix(in srgb, var(--surface) 95%, var(--accent) 5%), var(--surface-soft));
  box-shadow: 0 16px 44px color-mix(in srgb, var(--accent) 10%, transparent);
}
body.workspace-puzzle-page .daily-puzzle-banner-label,
body.workspace-puzzle-page .daily-puzzle-banner-cta { color: var(--accent-strong); }
body.workspace-puzzle-page .puzzle-mode-tabs,
body.workspace-puzzle-page .chip-row {
  width: fit-content;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: color-mix(in srgb, var(--surface-soft) 76%, transparent);
}
body.workspace-puzzle-page :is(.puzzle-mode-tab,.chip) { border-radius: 10px; }
body.workspace-puzzle-page :is(.puzzle-mode-tab.active,.chip.is-active) { background: var(--surface); color: var(--accent-strong); box-shadow: 0 5px 16px color-mix(in srgb, var(--ink) 8%, transparent); }
body.workspace-puzzle-page .puzzle-list-item { border-color: var(--line); border-radius: 15px; background: var(--surface); }
body.workspace-puzzle-page .puzzle-inline-link { padding: 0; color: var(--accent-strong); font-weight: 800; text-decoration: underline; text-underline-offset: 4px; }
body.workspace-puzzle-page .saved-library { min-height: 350px; }
body.workspace-puzzle-page .puzzle-empty { min-height: 190px; display: grid; place-content: center; }
body.workspace-puzzle-page .puzzle-empty strong { color: var(--ink); }
body.workspace-puzzle-page .puzzle-footer { border-color: var(--line); color: var(--muted); }

body.workspace-puzzle-page .visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
  border: 0 !important;
}
body.workspace-puzzle-page .puzzle-learning-card.puzzle-context-card,
body.workspace-puzzle-page .puzzle-learning-card.storm-entry-card {
  height: 100%;
  max-height: none;
  align-self: stretch;
}
body.workspace-puzzle-page .puzzle-learning-card.puzzle-library-rail {
  height: auto;
  max-height: none;
  align-self: stretch;
}
body.workspace-puzzle-page .puzzle-library-rail .saved-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
body.workspace-puzzle-page .puzzle-library-rail .stat-card-cta {
  grid-column: 1 / -1;
  min-height: 104px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas: 'label action' 'value action' 'copy action';
  column-gap: 16px;
  align-items: center;
}
body.workspace-puzzle-page .puzzle-library-rail .stat-card-cta > .eyebrow { grid-area: label; }
body.workspace-puzzle-page .puzzle-library-rail .stat-card-cta > .stat-num { grid-area: value; }
body.workspace-puzzle-page .puzzle-library-rail .stat-card-cta > .stat-sub { grid-area: copy; }
body.workspace-puzzle-page .puzzle-library-rail .stat-card-cta > .stat-card-button { position: static; grid-area: action; width: auto; min-width: 150px; margin: 0; }
body.workspace-puzzle-page .puzzle-library-rail .puzzle-library-hero {
  padding-block: 20px;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  grid-template-areas: 'icon kicker' 'icon title' '. copy';
  column-gap: 14px;
  align-items: center;
}
body.workspace-puzzle-page .puzzle-library-hero .puzzle-context-icon { grid-area: icon; margin: 0; }
body.workspace-puzzle-page .puzzle-library-hero .puzzle-kicker { grid-area: kicker; }
body.workspace-puzzle-page .puzzle-library-hero h2 { grid-area: title; margin: 3px 0 0; }
body.workspace-puzzle-page .puzzle-library-hero > p:last-child { grid-area: copy; margin-top: 9px; }
body.workspace-puzzle-page .puzzle-library-rail .puzzle-preview-empty { min-height: 150px; }
body.workspace-puzzle-page .puzzle-library-experience > .puzzle-learning-card.puzzle-library-rail {
  height: var(--library-stage-size);
  max-height: var(--library-stage-size);
  align-self: start;
}
body.workspace-puzzle-page .puzzle-library-experience > .puzzle-library-rail .saved-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }

html[data-theme]:not([data-theme="classic"]) body.workspace-puzzle-page {
  --void-950: var(--premium-bg);
  --void-900: var(--premium-panel-2);
  --void-850: var(--premium-panel);
  --void-800: var(--premium-elev);
  --hairline: var(--premium-border);
  --hairline-strong: color-mix(in srgb, var(--premium-border) 70%, var(--accent) 30%);
  background: var(--premium-bg);
}
html[data-theme]:not([data-theme="classic"]) body.workspace-puzzle-page .puzzle-dock { background: var(--premium-panel); border-color: var(--premium-border); }
html[data-theme]:not([data-theme="classic"]) body.workspace-puzzle-page :is(.card.stat-card,.puzzle-card,.mode-card) {
  background: linear-gradient(145deg, var(--premium-panel), color-mix(in srgb, var(--premium-panel-2) 95%, var(--accent) 5%));
  box-shadow: var(--premium-shadow-soft), inset 0 1px 0 var(--premium-shine);
}
html[data-theme]:not([data-theme="classic"]) body.workspace-puzzle-page .puzzle-list-item,
html[data-theme]:not([data-theme="classic"]) body.workspace-puzzle-page :is(.puzzle-mode-tab.active,.chip.is-active) { background: var(--premium-elev); }
html[data-theme]:not([data-theme="classic"]) body.workspace-puzzle-page .daily-puzzle-banner { background: linear-gradient(110deg, var(--premium-panel), color-mix(in srgb, var(--premium-panel-2) 82%, var(--accent) 18%)); }

/* ===== Compact desktop / tablet: 1024-1365px ===== */
@media (max-width: 1365px) {
  body.workspace-puzzle-page .hub-layout { grid-template-columns: minmax(0, 1fr) 160px; gap: 20px; }
  body.workspace-puzzle-page .hub-mascot img { width: 140px; height: 140px; }
  body.workspace-puzzle-page .catalog-stats { grid-template-columns: repeat(2,1fr); }
  body.workspace-puzzle-page .puzzle-grid { grid-template-columns: minmax(0,1.3fr) minmax(280px,.7fr); gap: 16px; }
  body.workspace-puzzle-page .config-workbench .theme-multi-select { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 1180px) {
  body.workspace-puzzle-page .catalog-stats { grid-template-columns: repeat(2,1fr); }
  body.workspace-puzzle-page .puzzle-grid { grid-template-columns: 1fr; }
  body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout) { --learning-stage-size: min(calc(100vw - 120px), 700px); }
  body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout) .puzzle-learning-layout { grid-template-columns: 1fr; gap: 56px; overflow: auto; align-items: start; }
  body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout) .puzzle-learning-board-tools { inset: calc(100% + 6px) 0 auto auto; }
  body.workspace-puzzle-page .puzzle-learning-settings-menu { inset: 0 calc(100% + 6px) auto auto; }
  body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout) .puzzle-learning-card { width: min(100%, 700px); height: auto; max-height: none; margin-top: 0; justify-self: center; }
  body.workspace-puzzle-page .hub-layout { grid-template-columns: 1fr; }
  body.workspace-puzzle-page .hub-mascot { display: none; }
  body.workspace-puzzle-page .puzzle-experience-phase { overflow: auto; }
  body.workspace-puzzle-page .puzzle-experience-layout,
  body.workspace-puzzle-page .puzzle-library-experience,
  body.workspace-puzzle-page .puzzle-review-experience { grid-template-columns: 1fr; gap: 20px; }
  body.workspace-puzzle-page .puzzle-experience-stage { min-height: 620px; }
  body.workspace-puzzle-page .puzzle-context-card,
  body.workspace-puzzle-page .puzzle-library-rail { width: 100%; height: auto; max-height: none; }
  body.workspace-puzzle-page .my-review-board { width: min(100%, 700px); justify-self: center; }
  body.workspace-puzzle-page .my-library-board { width: min(100%, 700px); justify-self: center; }
  body.workspace-puzzle-page .my-library-board .puzzle-board-wrapper,
  body.workspace-puzzle-page .my-library-board .puzzle-board-shell,
  body.workspace-puzzle-page .my-library-board .puzzle-board { width: min(100%, 700px); }
  body.workspace-puzzle-page .puzzle-library-experience > .puzzle-learning-card.puzzle-library-rail { width: min(100%, 700px); height: min(780px, 85dvh); max-height: none; justify-self: center; }
  body.workspace-puzzle-page .my-review-board .puzzle-board-wrapper,
  body.workspace-puzzle-page .my-review-board .puzzle-board-shell { width: min(100%, 700px); }
  body.workspace-puzzle-page .my-review-rail { width: min(100%, 700px); height: auto; max-height: none; justify-self: center; }
  body.workspace-puzzle-page .my-review-board-tools { inset: calc(100% + 6px) 0 auto auto; flex-direction: row; }
}
@media (max-width: 930px) {
  body.workspace-puzzle-page .puzzles-workspace-main { padding: 12px 14px; }
  body.workspace-puzzle-page .hub-grid { grid-template-columns: 1fr; }
}
/* ===== Mobile: < 768px ===== */
@media (max-width: 767px) {
  body.workspace-puzzle-page {
    height: 100dvh !important;
    max-height: 100dvh !important;
    overflow: hidden !important;
  }
  body.workspace-puzzle-page .app-shell {
    height: 100dvh !important;
    max-height: 100dvh !important;
    min-height: 0 !important;
    overflow: hidden !important;
  }
  body.workspace-puzzle-page .workspace {
    flex-direction: column;
    flex: 1 1 auto;
    min-height: 0;
    overflow: hidden;
  }
  body.workspace-puzzle-page .puzzle-dock {
    flex: 0 0 auto;
    width: 100%;
    flex-direction: row;
    justify-content: space-around;
    padding: 6px 4px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    overflow-x: auto;
  }
  body.workspace-puzzle-page .dock-spacer { display: none; }
  body.workspace-puzzle-page .dock-nav-item { width: 44px; height: 44px; flex: 0 0 auto; }
  body.workspace-puzzle-page .puzzles-workspace-main {
    padding: 14px 12px 24px;
    gap: 16px;
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch;
  }
  body.workspace-puzzle-page .puzzle-phase {
    overflow-y: auto !important;
    min-height: 0;
  }
  body.workspace-puzzle-page .hub-layout { grid-template-columns: 1fr; }
  body.workspace-puzzle-page .hub-mascot { display: none; }
  body.workspace-puzzle-page .hub-grid { grid-template-columns: 1fr; }
  body.workspace-puzzle-page .hub-main h1 { font-size: clamp(32px, 10vw, 44px); }
  body.workspace-puzzle-page .puzzle-experience-stage { min-height: 0; padding: 22px 17px; }
  body.workspace-puzzle-page .puzzle-experience-stage-head { grid-template-columns: 1fr; gap: 12px; }
  body.workspace-puzzle-page .puzzle-experience-stage-head h1 { font-size: clamp(34px, 11vw, 46px); }
  body.workspace-puzzle-page .config-workbench .theme-multi-select { grid-template-columns: 1fr; max-height: 330px; }
  body.workspace-puzzle-page .rating-stepper { align-items: stretch; flex-direction: column; }
  body.workspace-puzzle-page .rating-stepper-field input { width: 100%; }
  body.workspace-puzzle-page .rating-stepper-dash { display: none; }
  body.workspace-puzzle-page .puzzle-library-rail .saved-stats { grid-template-columns: 1fr 1fr; }
  body.workspace-puzzle-page .puzzle-library-experience > .puzzle-library-rail .saved-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  body.workspace-puzzle-page .my-library-controls .puzzle-filters { grid-template-columns: 1fr; }
  body.workspace-puzzle-page .my-library-actions { grid-template-columns: 1fr; align-items: stretch; }
  body.workspace-puzzle-page .my-library-action-buttons { width: 100%; }
  body.workspace-puzzle-page .my-library-action-buttons .puzzle-button { flex: 1 1 auto; }
  body.workspace-puzzle-page .puzzle-learning-card.puzzle-library-rail { overflow-y: visible; }
  body.workspace-puzzle-page .puzzle-library-rail .stat-card-cta { grid-column: 1 / -1; }
  body.workspace-puzzle-page .puzzle-plan-metrics > div { grid-template-columns: 76px minmax(0, 1fr); }
  body.workspace-puzzle-page .catalog-stats,
  body.workspace-puzzle-page .saved-stats { grid-template-columns: 1fr; }
  body.workspace-puzzle-page .puzzle-player-head,
  body.workspace-puzzle-page .puzzle-session-actions,
  body.workspace-puzzle-page .puzzle-status-row { align-items: flex-start; flex-direction: column; }
  body.workspace-puzzle-page .puzzle-card-pad { padding: 20px 16px; }
  body.workspace-puzzle-page .daily-puzzle-banner-inner { align-items: flex-start; flex-direction: column; }
  body.workspace-puzzle-page #practiceMode .puzzle-grid > aside { order: -1; }
  body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout) { --learning-stage-size: min(calc(100vw - 24px), 700px); }
  body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout) #practiceMode .puzzle-grid > aside { order: 0; }
  body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout) .puzzle-learning-card { padding: 22px 18px 18px; border-radius: 18px; }
  body.workspace-puzzle-page .puzzle-learning-card-head { align-items: stretch; flex-direction: column; }
  body.workspace-puzzle-page .puzzle-learning-rating { width: 100%; justify-content: space-between; }
  body.workspace-puzzle-page .puzzle-learning-rating-card { width: auto; min-width: 0; max-width: none; flex: 1 1 auto; }
  body.workspace-puzzle-page #solverRatingCard {
    width: 200px !important;
    min-width: 200px !important;
    max-width: 200px !important;
    flex: 0 0 200px !important;
    box-sizing: border-box !important;
  }
  body.workspace-puzzle-page .puzzle-learning-tool { min-height: 44px; }
  body.workspace-puzzle-page:is(.is-learning-solver, .has-puzzle-board-layout) .puzzle-learning-tool { width: 44px; min-width: 44px; height: 44px; min-height: 44px; padding: 0; }
  body.workspace-puzzle-page .puzzle-learning-save { width: 44px; height: 44px; }
  body.workspace-puzzle-page .puzzle-learning-actions button { min-width: 44px; min-height: 44px; }
  body.workspace-puzzle-page .puzzle-result-facts { grid-template-columns: 1fr; }
  body.workspace-puzzle-page .puzzle-result-fact { padding: 11px 12px 12px; }
  body.workspace-puzzle-page .puzzle-result-fact + .puzzle-result-fact { border-left: 0; border-top: 1px solid color-mix(in srgb, var(--line) 88%, transparent); }
  body.workspace-puzzle-page .puzzle-learning-board-tools { height: auto; min-height: 0; align-items: flex-start; flex-direction: column; }
  body.workspace-puzzle-page .my-review-board-tools { position: static; width: 100%; min-height: 44px; align-items: center; flex-direction: row; justify-content: flex-end; }
  body.workspace-puzzle-page #practiceMode .puzzle-controls > div:first-child { order: 0; }
  body.workspace-puzzle-page #puzzleStart { order: 1; width: 100%; }
  body.workspace-puzzle-page #practiceMode .puzzle-field { order: 2; }
  body.workspace-puzzle-page #puzzleControlStatus,
  body.workspace-puzzle-page #puzzleOptionsRetry { order: 3; }
  body.workspace-puzzle-page #practiceMode .puzzle-note { order: 4; }
  body.workspace-puzzle-page .puzzle-board-shell { width: min(100vw - 40px, 100%); }
}
@media (prefers-reduced-motion: reduce) {
  body.workspace-puzzle-page .puzzle-dock { backdrop-filter: none; }
  body.workspace-puzzle-page .hub-mascot img { transition: none; }
  body.workspace-puzzle-page .mode-card { transition: none; }
  body.workspace-puzzle-page .puzzle-learning-rating-card,
  body.workspace-puzzle-page .puzzle-learning-rating-card::before,
  body.workspace-puzzle-page .puzzle-learning-rating-card::after,
  body.workspace-puzzle-page .puzzle-learning-rating-score strong,
  body.workspace-puzzle-page .puzzle-learning-rating-delta { animation: none !important; transition: none !important; }
}

/* ===== Compact footer ribbon inside the zero-scroll shell ===== */
body.workspace-puzzle-page .workspace-footer {
  flex: 0 0 auto;
  padding: 0;
  border-top: 1px solid var(--line);
  background: var(--surface-soft);
}
body.workspace-puzzle-page .workspace-footer .footer-grid { display: none; }
body.workspace-puzzle-page .workspace-footer .footer-bottom {
  justify-content: center;
  gap: 18px;
  padding-block: 10px 12px;
  border-top: 0;
  color: var(--faint);
  font-size: 11px;
}

/* ===== My Puzzles premium library and focused review ===== */
body.workspace-puzzle-page.is-my-puzzles-phase #phaseMyPuzzles {
  overflow: auto;
  scrollbar-gutter: stable;
}
body.workspace-puzzle-page.is-my-puzzles-phase #savedSectionPanel { overflow: visible; }
body.workspace-puzzle-page .puzzle-library-experience {
  --library-rail-w: clamp(620px, 44vw, 720px);
  gap: clamp(28px, 3vw, 52px);
}
body.workspace-puzzle-page .puzzle-library-experience > .my-library-board.puzzle-learning-board {
  position: sticky;
  top: 0;
}
body.workspace-puzzle-page .puzzle-library-experience > .puzzle-learning-card.puzzle-library-rail {
  position: relative;
  isolation: isolate;
  height: auto;
  min-height: max(var(--my-library-board-height, var(--library-stage-size)), 760px);
  max-height: none;
  padding: 24px 26px 22px;
  overflow: visible;
  border-color: color-mix(in srgb, var(--line) 72%, var(--accent) 28%);
  background:
    radial-gradient(circle at 100% 0, color-mix(in srgb, var(--accent) 12%, transparent), transparent 34%),
    linear-gradient(155deg, color-mix(in srgb, var(--surface) 98%, var(--accent) 2%), var(--surface));
  box-shadow: 0 28px 72px color-mix(in srgb, #000 28%, transparent), inset 0 1px 0 color-mix(in srgb, #fff 9%, transparent);
}
body.workspace-puzzle-page .puzzle-library-experience > .puzzle-library-rail::before,
body.workspace-puzzle-page .my-review-rail::before {
  content: '';
  position: absolute;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  background: linear-gradient(115deg, color-mix(in srgb, #fff 5%, transparent), transparent 28% 72%, color-mix(in srgb, var(--accent) 6%, transparent));
}
body.workspace-puzzle-page .puzzle-library-rail .my-library-head {
  min-height: 86px;
  padding: 2px 0 16px;
  align-items: flex-start;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
}
body.workspace-puzzle-page .my-library-title-block { min-width: 0; display: grid; gap: 4px; }
body.workspace-puzzle-page .my-library-title-block > p:last-child {
  max-width: 48ch;
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}
body.workspace-puzzle-page .puzzle-library-rail .my-library-head .puzzle-plan-count {
  min-width: 126px;
  padding: 9px 12px;
  display: grid;
  justify-items: start;
  gap: 3px;
  border: 1px solid color-mix(in srgb, var(--accent) 38%, var(--line));
  border-radius: 13px;
  color: var(--accent-strong);
  background: color-mix(in srgb, var(--accent) 10%, var(--surface));
  font-size: 11px;
  line-height: 1.15;
  letter-spacing: 0;
  text-transform: none;
}
body.workspace-puzzle-page .puzzle-library-rail .my-library-head .puzzle-plan-count small {
  color: var(--muted);
  font: 800 8px/1 var(--mono);
  letter-spacing: .14em;
}
body.workspace-puzzle-page .my-library-summary {
  padding-block: 12px;
  border-bottom-color: color-mix(in srgb, var(--line) 82%, transparent);
}
body.workspace-puzzle-page .my-library-summary > .stat-row > .card.stat-card {
  border-color: color-mix(in srgb, var(--line) 84%, var(--accent) 16%);
  background: color-mix(in srgb, var(--surface-soft) 88%, transparent);
}
body.workspace-puzzle-page .my-library-summary #reviewDueCta {
  min-width: 128px;
  box-shadow: 0 12px 28px color-mix(in srgb, var(--accent) 22%, transparent);
}
body.workspace-puzzle-page .my-library-controls { padding-block: 10px; }
body.workspace-puzzle-page .my-library-filter-menu > summary {
  border-color: color-mix(in srgb, var(--line) 80%, var(--accent) 20%);
  background: color-mix(in srgb, var(--surface-soft) 86%, transparent);
}
body.workspace-puzzle-page .my-library-results { min-height: 390px; padding-top: 14px; }
body.workspace-puzzle-page .my-library-results-head { min-height: 50px; align-items: flex-end; }
body.workspace-puzzle-page .my-library-results-head > div:first-child { min-width: 0; }
body.workspace-puzzle-page .my-library-results-head h2 { margin-top: 4px; font-size: 21px; }
body.workspace-puzzle-page .my-library-results-tools { display: flex; align-items: center; gap: 10px; }
body.workspace-puzzle-page .my-library-key-hint {
  color: var(--faint);
  font: 700 9px/1 var(--mono);
  letter-spacing: .06em;
  text-transform: uppercase;
}
body.workspace-puzzle-page .puzzle-select-all-label {
  min-height: 44px;
  padding: 8px 10px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: 10px;
}
body.workspace-puzzle-page .puzzle-select-all-label:hover { border-color: var(--line); background: color-mix(in srgb, var(--surface-soft) 88%, transparent); }
body.workspace-puzzle-page .my-library-results .puzzle-library-layout {
  min-height: 320px;
  border: 1px solid color-mix(in srgb, var(--line) 84%, transparent);
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface-soft) 52%, transparent);
}
body.workspace-puzzle-page .my-library-results .puzzle-list { min-height: 320px; padding: 7px; }
body.workspace-puzzle-page .my-library-results .puzzle-list-item {
  min-height: 88px;
  margin: 0 0 7px;
  padding: 11px 78px 11px 42px;
  border-color: color-mix(in srgb, var(--line) 86%, transparent);
  border-radius: 14px;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  transition: border-color .16s ease, background-color .16s ease, box-shadow .16s ease, transform .16s ease;
}
body.workspace-puzzle-page .my-library-results .puzzle-list-item:last-child { margin-bottom: 0; }
body.workspace-puzzle-page .my-library-results .puzzle-list-item:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 26px color-mix(in srgb, #000 16%, transparent);
}
body.workspace-puzzle-page .my-library-results .puzzle-list-item.is-selected {
  border-color: color-mix(in srgb, var(--accent) 68%, var(--line));
  background: linear-gradient(105deg, color-mix(in srgb, var(--accent) 13%, var(--surface)), color-mix(in srgb, var(--surface) 96%, var(--accent) 4%));
  box-shadow: inset 3px 0 0 var(--accent-strong), 0 12px 30px color-mix(in srgb, var(--accent) 12%, transparent);
}
body.workspace-puzzle-page .my-library-results .puzzle-checkbox { width: 18px; height: 18px; accent-color: var(--accent-strong); }
body.workspace-puzzle-page .my-puzzle-row-opening { font-size: 15px; }
body.workspace-puzzle-page .my-puzzle-row-game { font-size: 11px; }
body.workspace-puzzle-page .my-library-actions {
  position: relative;
  min-height: 74px;
  margin-top: 12px;
  padding-top: 14px;
  border-top-color: color-mix(in srgb, var(--line) 76%, var(--accent) 24%);
}
body.workspace-puzzle-page .my-library-current-choice > strong { font-size: 16px; }
body.workspace-puzzle-page .my-library-actions .puzzle-button.primary {
  min-width: 170px;
  box-shadow: 0 14px 30px color-mix(in srgb, var(--accent) 24%, transparent);
}
body.workspace-puzzle-page .my-library-actions .puzzle-button.primary:not(:disabled):hover { transform: translateY(-1px); }

/* Focused saved-puzzle player. */
body.workspace-puzzle-page .puzzle-review-experience { --review-rail-w: clamp(620px, 44vw, 720px); }
body.workspace-puzzle-page .my-review-rail {
  position: relative;
  isolation: isolate;
  height: max(var(--review-stage-size), 680px);
  min-height: 680px;
  max-height: none;
  padding: 24px 26px 22px;
  overflow: hidden;
  border-color: color-mix(in srgb, var(--line) 70%, var(--accent) 30%);
  background:
    radial-gradient(circle at 100% 0, color-mix(in srgb, var(--accent) 15%, transparent), transparent 36%),
    linear-gradient(155deg, color-mix(in srgb, var(--surface) 97%, var(--accent) 3%), var(--surface));
  box-shadow: 0 28px 72px color-mix(in srgb, #000 30%, transparent), inset 0 1px 0 color-mix(in srgb, #fff 9%, transparent);
}
body.workspace-puzzle-page .my-review-nav {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
}
body.workspace-puzzle-page .my-review-back { min-height: 40px; display: inline-flex; align-items: center; gap: 8px; }
body.workspace-puzzle-page .my-review-back::after { display: none; }
body.workspace-puzzle-page .my-review-back > span { font-size: 16px; transition: transform .16s ease; }
body.workspace-puzzle-page .my-review-back:hover > span { transform: translateX(-3px); }
body.workspace-puzzle-page .my-review-session-label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font: 800 9px/1 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}
body.workspace-puzzle-page .my-review-session-label > span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-strong);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent) 12%, transparent);
}
body.workspace-puzzle-page .my-review-rail .puzzle-player-head { padding: 22px 0 20px; }
body.workspace-puzzle-page .my-review-head > div:first-child { gap: 7px; }
body.workspace-puzzle-page .my-review-head h2 { max-width: 16ch; margin: 0; font-size: clamp(27px, 2.2vw, 36px); line-height: 1.04; }
body.workspace-puzzle-page .my-review-rating-card {
  border-color: color-mix(in srgb, var(--accent) 42%, var(--line));
  background: linear-gradient(145deg, color-mix(in srgb, var(--accent) 13%, var(--surface)), color-mix(in srgb, var(--surface-soft) 94%, transparent));
  box-shadow: 0 14px 34px color-mix(in srgb, #000 16%, transparent), inset 0 1px 0 color-mix(in srgb, #fff 8%, transparent);
}
body.workspace-puzzle-page .my-review-turn {
  min-height: 78px;
  margin-top: 20px;
  padding: 14px 16px;
  border: 1px solid color-mix(in srgb, var(--accent) 42%, var(--line));
  background: linear-gradient(105deg, color-mix(in srgb, var(--accent) 13%, var(--surface)), color-mix(in srgb, var(--surface-soft) 90%, transparent));
  box-shadow: 0 14px 32px color-mix(in srgb, var(--accent) 10%, transparent);
}
body.workspace-puzzle-page .my-review-context {
  margin-top: 12px;
  padding: 14px 16px;
  border-color: color-mix(in srgb, var(--line) 76%, var(--accent) 24%);
  background: color-mix(in srgb, var(--surface-soft) 72%, transparent);
}
body.workspace-puzzle-page .my-review-rail .puzzle-feedback {
  min-height: 92px;
  margin-top: 12px;
  padding: 16px 18px;
  border-radius: 15px;
  background: color-mix(in srgb, var(--surface-soft) 76%, transparent);
}
body.workspace-puzzle-page .my-review-rail .puzzle-session-actions {
  min-height: 68px;
  padding-top: 16px;
  border-top: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
}
body.workspace-puzzle-page .my-review-rail .puzzle-actions { flex-wrap: wrap; justify-content: flex-end; }
body.workspace-puzzle-page .my-review-rail #myPuzzleNext { min-width: 178px; box-shadow: 0 14px 30px color-mix(in srgb, var(--accent) 24%, transparent); }
body.workspace-puzzle-page .my-review-board .puzzle-board-shell {
  border-color: color-mix(in srgb, var(--line) 64%, var(--accent) 36%);
  box-shadow: 0 30px 76px color-mix(in srgb, #000 34%, transparent), 0 0 0 1px color-mix(in srgb, var(--accent) 12%, transparent);
}

@media (max-width: 1180px) {
  body.workspace-puzzle-page .puzzle-library-experience { display: flex; flex-direction: column; gap: 28px; }
  body.workspace-puzzle-page .puzzle-library-experience > .puzzle-learning-card.puzzle-library-rail {
    order: -1;
    width: min(100%, 920px);
    height: auto;
    min-height: 820px;
    max-height: none;
    justify-self: center;
    align-self: center;
  }
  body.workspace-puzzle-page .puzzle-library-experience > .my-library-board.puzzle-learning-board {
    position: relative;
    top: auto;
    width: min(100%, 640px);
    align-self: center;
  }
  body.workspace-puzzle-page .my-review-rail { height: auto; min-height: 680px; }
}

@media (min-width: 900px) and (max-width: 1180px) {
  body.workspace-puzzle-page .puzzle-review-experience {
    grid-template-columns: minmax(330px, .9fr) minmax(440px, 1.1fr);
    gap: 20px;
    align-items: start;
  }
  body.workspace-puzzle-page .my-review-board,
  body.workspace-puzzle-page .my-review-board .puzzle-board-wrapper,
  body.workspace-puzzle-page .my-review-board .puzzle-board-shell { width: 100%; }
  body.workspace-puzzle-page .my-review-rail { width: 100%; }
}

@media (max-width: 767px) {
  body.workspace-puzzle-page .puzzle-library-experience > .puzzle-learning-card.puzzle-library-rail {
    width: 100%;
    height: auto;
    min-height: 0;
    padding: 20px 16px 18px;
    border-radius: 18px;
  }
  body.workspace-puzzle-page .puzzle-library-rail .my-library-head { min-height: 0; gap: 14px; }
  body.workspace-puzzle-page .puzzle-library-rail .my-library-head .puzzle-plan-count { min-width: 0; }
  body.workspace-puzzle-page .my-library-summary { grid-template-columns: 1fr; gap: 10px; }
  body.workspace-puzzle-page .my-library-summary .stat-row { grid-column: 1; grid-row: 1; width: 100%; }
  body.workspace-puzzle-page .my-library-summary #reviewDueCta { grid-column: 1; grid-row: 2; width: 100%; }
  body.workspace-puzzle-page .my-library-title-block > p:last-child,
  body.workspace-puzzle-page .my-library-key-hint { display: none; }
  body.workspace-puzzle-page .my-library-results { min-height: 440px; }
  body.workspace-puzzle-page .my-library-results .puzzle-library-layout { height: min(62dvh, 620px); min-height: 380px; }
  body.workspace-puzzle-page .my-library-results .puzzle-list { height: 100%; min-height: 0; }
  body.workspace-puzzle-page .my-library-results-head { align-items: center; }
  body.workspace-puzzle-page .my-library-results-tools { margin-left: auto; }
  body.workspace-puzzle-page .my-library-results .puzzle-list-item { min-height: 96px; padding: 12px 64px 12px 38px; }
  body.workspace-puzzle-page .my-library-actions { min-height: 0; }
  body.workspace-puzzle-page .my-library-current-choice { grid-template-columns: 1fr; grid-template-areas: 'label' 'title' 'themes'; }
  body.workspace-puzzle-page .my-library-actions .puzzle-button.primary { width: 100%; }
  body.workspace-puzzle-page .my-review-rail { min-height: 0; padding: 18px 16px; border-radius: 18px; }
  body.workspace-puzzle-page .my-review-head { gap: 16px; }
  body.workspace-puzzle-page .my-review-head h2 { max-width: none; }
  body.workspace-puzzle-page .my-review-rating-card { width: 100%; min-width: 0; max-width: none; }
  body.workspace-puzzle-page .my-review-rail .puzzle-session-actions,
  body.workspace-puzzle-page .my-review-rail .puzzle-actions { width: 100%; }
  body.workspace-puzzle-page .my-review-rail #myPuzzleNext { flex: 1 1 100%; }
}

@media (prefers-reduced-motion: reduce) {
  body.workspace-puzzle-page .my-library-results .puzzle-list-item,
  body.workspace-puzzle-page .my-review-back > span { transition: none; }
  body.workspace-puzzle-page .my-library-results .puzzle-list-item:hover,
  body.workspace-puzzle-page .my-library-actions .puzzle-button.primary:not(:disabled):hover { transform: none; }
}

/* ===== My Puzzles — Variant A "queue-first" library =========================
   The library is one centered queue column (prototype variant A): a header row
   with the serif title, inline stats and the Start review button; a horizontally
   scrollable tab row; compact queue rows built as [thumb | copy | badges | more]
   grids with static FEN mini-board thumbnails; exactly one expanded active row
   carrying its actions. Everything below is scoped to .mp-* inside the My
   Puzzles phase — no rules for other sections are touched. The big board lives
   only in #myPuzzlePlayer above; while that player is open this column hides.
   ========================================================================== */
body.workspace-puzzle-page .puzzle-review-experience:not([hidden]) ~ .mp-library { display: none; }
body.workspace-puzzle-page .mp-preview-vault[hidden] { display: none !important; }

body.workspace-puzzle-page .mp-library {
  --mp-thumb-size: 64px;
  width: min(1080px, 100%);
  min-width: 0;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Header: title + inline stats + Start review */
body.workspace-puzzle-page .mp-head { display: flex; align-items: flex-end; gap: 18px; }
body.workspace-puzzle-page .mp-head-copy { min-width: 0; }
body.workspace-puzzle-page .mp-title { margin: 0; color: var(--ink); font: 600 clamp(26px, 3vw, 34px)/1 var(--serif); letter-spacing: -.03em; }
body.workspace-puzzle-page .mp-stats { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; margin: 8px 0 0; color: var(--muted); font-size: 13px; }
body.workspace-puzzle-page .mp-stat { display: inline-flex; align-items: baseline; gap: 5px; white-space: nowrap; }
body.workspace-puzzle-page .mp-stat-num { color: var(--accent-strong); font-weight: 750; font-variant-numeric: tabular-nums; }
body.workspace-puzzle-page .mp-stat-num.is-loading { min-width: 2ch; color: var(--muted); animation: mp-stat-pulse 1.2s ease-in-out infinite; }
body.workspace-puzzle-page .mp-stat-num.is-unavailable { color: var(--muted); font-family: var(--mono); font-size: 12px; }
@keyframes mp-stat-pulse { 50% { opacity: .45; } }
body.workspace-puzzle-page .mp-stats .puzzle-streak-badge { margin-left: 6px; }
body.workspace-puzzle-page .mp-start { margin-left: auto; min-width: 168px; box-shadow: 0 14px 30px color-mix(in srgb, var(--accent) 24%, transparent); }
body.workspace-puzzle-page .mp-start:not(:disabled):hover { transform: translateY(-1px); }

/* Toolbar: tab filter row + keyboard hints */
body.workspace-puzzle-page .mp-toolbar { display: flex; align-items: center; gap: 12px; }
body.workspace-puzzle-page .mp-tabs {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  gap: 4px;
  padding: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  border: 0;
  background: transparent;
}
body.workspace-puzzle-page .mp-tabs::-webkit-scrollbar { display: none; }
body.workspace-puzzle-page .mp-tabs .chip { flex: 0 0 auto; min-height: 34px; padding: 7px 12px; border-color: transparent; border-radius: 9px; background: transparent; color: var(--muted); font-weight: 650; }
body.workspace-puzzle-page .mp-tabs .chip:hover { border-color: transparent; background: color-mix(in srgb, var(--surface) 92%, transparent); color: var(--ink); }
body.workspace-puzzle-page .mp-tabs .chip.is-active { border-color: color-mix(in srgb, var(--line) 88%, transparent); background: color-mix(in srgb, var(--surface-soft) 88%, var(--surface)); color: var(--ink); box-shadow: none; }
body.workspace-puzzle-page .mp-tab-count { margin-left: 5px; color: var(--accent-strong); font-weight: 750; font-style: normal; }
body.workspace-puzzle-page .mp-key-hint { flex: 0 0 auto; display: inline-flex; align-items: center; gap: 4px; margin-left: auto; color: var(--faint, var(--muted)); font-size: 11px; white-space: nowrap; }
body.workspace-puzzle-page .mp-key-hint kbd { padding: 1px 5px; border: 1px solid var(--line); border-radius: 4px; background: color-mix(in srgb, var(--surface-soft) 80%, transparent); color: inherit; font: 700 10px/1.4 var(--mono); }

/* Compact filter strip */
body.workspace-puzzle-page .mp-filters { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 8px 10px; padding: 10px 12px; border: 1px solid color-mix(in srgb, var(--line) 84%, transparent); border-radius: 14px; background: color-mix(in srgb, var(--surface-soft) 52%, transparent); }
body.workspace-puzzle-page .mp-filter-field { min-width: 0; display: grid; gap: 5px; color: var(--muted); font: 800 9px/1 var(--font-mono, var(--mono)); letter-spacing: .09em; text-transform: uppercase; }
body.workspace-puzzle-page .mp-filters .puzzle-select { min-width: 132px; min-height: 40px; }
body.workspace-puzzle-page .mp-filter-tail { display: flex; align-items: center; gap: 10px; margin-left: auto; padding-bottom: 9px; }
body.workspace-puzzle-page .mp-filter-count { color: var(--muted); font-size: 11px; }

/* Queue list */
body.workspace-puzzle-page .mp-results { display: flex; flex-direction: column; gap: 8px; }
body.workspace-puzzle-page .mp-list-status { min-height: 22px; display: flex; align-items: center; gap: 8px; color: var(--muted); font: 700 10px/1 var(--mono); letter-spacing: .05em; text-transform: uppercase; }
body.workspace-puzzle-page .mp-list-status.is-error { color: var(--danger, #d96860); }
body.workspace-puzzle-page .mp-list-status:empty { display: none; }
body.workspace-puzzle-page .mp-list { gap: 2px; }

body.workspace-puzzle-page .mp-row { position: relative; display: block; padding: 0; border: 1px solid transparent; border-radius: 12px; background: transparent; transition: background-color .16s ease, border-color .16s ease; }
body.workspace-puzzle-page .mp-row:hover { border-color: transparent; background: color-mix(in srgb, var(--surface) 90%, transparent); box-shadow: none; transform: none; }
body.workspace-puzzle-page .mp-row.is-selected,
body.workspace-puzzle-page .mp-row.is-open { border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); background: color-mix(in srgb, var(--surface) 94%, transparent); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 15%, transparent); }
body.workspace-puzzle-page .mp-row:focus-visible { outline: 2px solid var(--accent-strong); outline-offset: -2px; box-shadow: none; }
body.workspace-puzzle-page .mp-row-grid { display: grid; grid-template-columns: var(--mp-thumb-size) minmax(0, 1fr) auto 28px; gap: 12px; align-items: center; padding: 8px 10px; cursor: pointer; }
body.workspace-puzzle-page .mp-row-main { min-width: 0; }
body.workspace-puzzle-page .mp-title-line { overflow: hidden; color: var(--ink); font: 700 13px/1.35 var(--sans, inherit); white-space: nowrap; text-overflow: ellipsis; }
body.workspace-puzzle-page .mp-sub-line { overflow: hidden; margin-top: 2px; color: var(--muted); font-size: 11px; white-space: nowrap; text-overflow: ellipsis; }

/* Mini board thumbnail: static 8x8 FEN grid */
body.workspace-puzzle-page .mp-thumb { --mp-board-l: #ecd4ab; --mp-board-d: #b58863; width: var(--mp-thumb-size); aspect-ratio: 1; flex: none; display: grid; grid-template-columns: repeat(8, 1fr); overflow: hidden; border-radius: 7px; box-shadow: inset 0 0 0 1px rgba(0, 0, 0, .4); }
body.workspace-puzzle-page .mp-sq { width: 100%; aspect-ratio: 1; display: grid; place-items: center; }
body.workspace-puzzle-page .mp-sq.is-light { background: var(--mp-board-l); }
body.workspace-puzzle-page .mp-sq.is-dark { background: var(--mp-board-d); }
body.workspace-puzzle-page .mp-piece { font-size: clamp(6px, calc(var(--mp-thumb-size) / 7), 11px); line-height: 1; }
body.workspace-puzzle-page .mp-piece.is-white { color: #f7f1e3; text-shadow: 0 1px 0 #3a3228; }
body.workspace-puzzle-page .mp-piece.is-black { color: #1b1814; text-shadow: 0 1px 0 rgba(255, 255, 255, .22); }

/* Pill badges */
body.workspace-puzzle-page .mp-side { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; min-width: 86px; }
body.workspace-puzzle-page .mp-badge { display: inline-flex; align-items: center; height: 20px; padding: 0 8px; border-radius: 999px; color: var(--muted); font: 700 9px/1 var(--sans, inherit); letter-spacing: .06em; text-transform: uppercase; white-space: nowrap; }
body.workspace-puzzle-page .mp-badge.is-due { background: var(--amber-tint, rgba(224, 181, 75, .16)); color: var(--amber-400, #e0b54b); }
body.workspace-puzzle-page .mp-badge.is-new { background: color-mix(in srgb, var(--line) 55%, transparent); }
body.workspace-puzzle-page .mp-badge.is-scheduled { background: color-mix(in srgb, var(--line) 40%, transparent); }
body.workspace-puzzle-page .mp-badge.is-mastered { background: var(--accent-tint, rgba(143, 191, 136, .14)); color: var(--accent-400, var(--good)); }
body.workspace-puzzle-page .mp-badge.is-failed { background: var(--red-tint, rgba(208, 122, 112, .14)); color: var(--red-400, var(--danger, #d07a70)); }
body.workspace-puzzle-page .mp-badge.is-first-try { background: color-mix(in srgb, var(--good) 14%, transparent); color: color-mix(in srgb, var(--good) 82%, var(--ink)); }

/* "…" row menu button */
body.workspace-puzzle-page .mp-more { width: 28px; height: 28px; padding: 0; display: grid; place-items: center; border: 0; border-radius: 8px; background: transparent; color: var(--faint, var(--muted)); cursor: pointer; font-size: 15px; line-height: 1; }
body.workspace-puzzle-page .mp-more:hover { background: color-mix(in srgb, var(--line) 60%, transparent); color: var(--ink); }
body.workspace-puzzle-page .mp-more:focus-visible { outline: 2px solid var(--accent-strong); outline-offset: 1px; }

/* Expanded active row */
body.workspace-puzzle-page .mp-detail { display: none; margin: 0 10px 10px calc(var(--mp-thumb-size) + 22px); }
body.workspace-puzzle-page .mp-row.is-open .mp-detail { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; }
body.workspace-puzzle-page .mp-detail-meta { min-width: 0; overflow: hidden; color: var(--muted); font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
body.workspace-puzzle-page .mp-detail-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }
body.workspace-puzzle-page .mp-detail-actions .puzzle-button { min-height: 36px; padding: 6px 14px; font-size: 12px; }
body.workspace-puzzle-page .mp-remove { width: 36px; min-width: 36px; padding: 6px 0; font-size: 16px; }

/* Pagination footer */
body.workspace-puzzle-page .mp-pagination { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 10px; border-top: 1px solid color-mix(in srgb, var(--line) 84%, transparent); color: var(--muted); font: 700 11px/1 var(--mono); }
body.workspace-puzzle-page .mp-pagination .puzzle-button { min-height: 38px; }

/* Mobile: single column, compact rows, scrollable tabs/filters */
@media (max-width: 767px) {
  body.workspace-puzzle-page .mp-library { --mp-thumb-size: 48px; gap: 12px; }
  body.workspace-puzzle-page .mp-head { flex-direction: column; align-items: stretch; gap: 12px; }
  body.workspace-puzzle-page .mp-start { width: 100%; margin-left: 0; }
  body.workspace-puzzle-page .mp-stats { font-size: 12px; }
  body.workspace-puzzle-page .mp-key-hint { display: none; }
  body.workspace-puzzle-page .mp-toolbar { align-items: stretch; }
  body.workspace-puzzle-page .mp-filters { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; }
  body.workspace-puzzle-page .mp-filters::-webkit-scrollbar { display: none; }
  body.workspace-puzzle-page .mp-filter-field { flex: 0 0 auto; }
  body.workspace-puzzle-page .mp-filters .puzzle-select { min-height: 44px; }
  body.workspace-puzzle-page .mp-filter-tail { flex: 0 0 auto; margin-left: 0; padding-bottom: 0; }
  body.workspace-puzzle-page .mp-row-grid { grid-template-columns: var(--mp-thumb-size) minmax(0, 1fr) auto 24px; gap: 10px; padding: 8px; }
  body.workspace-puzzle-page .mp-side { min-width: 0; }
  body.workspace-puzzle-page .mp-detail { margin-left: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  body.workspace-puzzle-page .mp-row,
  body.workspace-puzzle-page .mp-start:not(:disabled):hover { transition: none; transform: none; }
  body.workspace-puzzle-page .mp-stat-num.is-loading { animation: none; }
}

/* =============================================================================
   Grok 4.6 Prototype Visual Parity & Zero-Scroll Refinements
   ============================================================================= */

/* 1. Prevent board shell from getting stuck at opacity:0 */
body.workspace-puzzle-page .puzzle-board-shell {
  opacity: 1 !important;
  animation: none !important;
}

/* 2. My Puzzles Segmented Tabs Control (Grok 4.6 parity) */
body.workspace-puzzle-page .my-review-rail .seg.mp-tabs {
  display: grid !important;
  grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
  padding: 3px !important;
  margin: 12px 0 14px !important;
  border: 1px solid var(--line) !important;
  border-radius: 14px !important;
  background: var(--surface-soft) !important;
  max-height: none !important;
  overflow: visible !important;
}
body.workspace-puzzle-page .my-review-rail .seg.mp-tabs .chip,
body.workspace-puzzle-page .my-review-rail .seg.mp-tabs button {
  min-height: 38px !important;
  border-radius: 11px !important;
  border: 0 !important;
  background: transparent !important;
  color: var(--muted) !important;
  font: 650 13px/1 var(--sans) !important;
  cursor: pointer !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 6px !important;
  padding: 0 10px !important;
  transition: background-color .15s ease, color .15s ease, box-shadow .15s ease !important;
}
body.workspace-puzzle-page .my-review-rail .seg.mp-tabs .chip:hover,
body.workspace-puzzle-page .my-review-rail .seg.mp-tabs button:hover {
  background: color-mix(in srgb, var(--surface) 80%, transparent) !important;
  color: var(--ink) !important;
}
body.workspace-puzzle-page .my-review-rail .seg.mp-tabs .chip.is-active,
body.workspace-puzzle-page .my-review-rail .seg.mp-tabs button.is-active {
  background: var(--surface) !important;
  color: var(--accent-strong) !important;
  font-weight: 700 !important;
  box-shadow: 0 1px 2px color-mix(in srgb, var(--ink) 10%, transparent), 0 8px 18px color-mix(in srgb, var(--ink) 6%, transparent) !important;
}
body.workspace-puzzle-page .my-review-rail .seg.mp-tabs .mp-tab-count {
  display: inline-block !important;
  padding: 2px 7px !important;
  border-radius: 999px !important;
  background: color-mix(in srgb, var(--line) 50%, var(--surface-soft)) !important;
  color: var(--accent-strong) !important;
  font: 700 11px/1 var(--mono) !important;
}
body.workspace-puzzle-page .my-review-rail .seg.mp-tabs .chip.is-active .mp-tab-count {
  background: var(--accent-soft) !important;
}

body.workspace-puzzle-page .my-review-rail .seg.mp-tabs [hidden],
body.workspace-puzzle-page .my-review-rail .seg.mp-tabs .chip[hidden],
body.workspace-puzzle-page .my-review-rail .seg.mp-tabs button[hidden] {
  display: none !important;
}

/* 3. Compact Group Filter (Horizontal Chips, replaces bulky 150px box) */
body.workspace-puzzle-page .mp-group-filter-wrap {
  margin: 0 0 10px !important;
}
body.workspace-puzzle-page .mp-group-filter-header {
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  margin-bottom: 5px !important;
}
body.workspace-puzzle-page .mp-group-filter-label {
  font: 800 10px/1 var(--mono) !important;
  letter-spacing: .08em !important;
  text-transform: uppercase !important;
  color: var(--muted) !important;
}
body.workspace-puzzle-page .mp-group-filter-status {
  font-size: 11px !important;
  color: var(--accent-strong) !important;
}
body.workspace-puzzle-page .mp-group-listbox {
  display: flex !important;
  flex-direction: row !important;
  gap: 6px !important;
  padding: 3px !important;
  border: 1px solid var(--line) !important;
  border-radius: 11px !important;
  background: var(--surface-soft) !important;
  max-height: none !important;
  height: auto !important;
  overflow-x: auto !important;
  scrollbar-width: none !important;
}
body.workspace-puzzle-page .mp-group-listbox::-webkit-scrollbar { display: none; }
body.workspace-puzzle-page .mp-group-option {
  flex: 0 0 auto !important;
  padding: 5px 10px !important;
  border-radius: 8px !important;
  font: 600 12px/1 var(--sans) !important;
  color: var(--muted) !important;
  cursor: pointer !important;
  display: inline-flex !important;
  align-items: center !important;
  gap: 6px !important;
  background: transparent !important;
  border: 0 !important;
  transition: background .15s ease, color .15s ease !important;
}
body.workspace-puzzle-page .mp-group-option:hover {
  color: var(--ink) !important;
  background: color-mix(in srgb, var(--surface) 80%, transparent) !important;
}
body.workspace-puzzle-page .mp-group-option[aria-selected="true"],
body.workspace-puzzle-page .mp-group-option.is-focused {
  background: var(--surface) !important;
  color: var(--accent-strong) !important;
  font-weight: 700 !important;
  box-shadow: 0 1px 2px rgba(0,0,0,0.06) !important;
}
body.workspace-puzzle-page .mp-group-filter-hint {
  display: none !important;
}

/* 4. Compact 52px Item Rows in My Puzzles List (Grok 4.6 parity) */
body.workspace-puzzle-page .my-review-rail .item-list {
  flex: 1 1 auto !important;
  min-height: 0 !important;
  max-height: calc(100vh - 380px) !important;
  overflow-y: auto !important;
  display: flex !important;
  flex-direction: column !important;
  gap: 6px !important;
  padding-right: 2px !important;
}
body.workspace-puzzle-page .my-review-rail .puzzle-card,
body.workspace-puzzle-page .my-review-rail .mp-row {
  flex: 0 0 auto !important;
  min-height: 52px !important;
  padding: 8px 14px 8px 12px !important;
  border-radius: 13px !important;
  text-align: left !important;
  border: 1px solid color-mix(in srgb, var(--line) 70%, transparent) !important;
  background: linear-gradient(180deg, var(--surface), var(--surface-soft)) !important;
  cursor: pointer !important;
  transition: border-color .15s ease, background-color .15s ease !important;
  margin-bottom: 0 !important;
}
body.workspace-puzzle-page .my-review-rail .puzzle-card:hover,
body.workspace-puzzle-page .my-review-rail .mp-row:hover {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--line)) !important;
}
body.workspace-puzzle-page .my-review-rail .puzzle-card.is-on,
body.workspace-puzzle-page .my-review-rail .mp-row.is-on {
  border-color: color-mix(in srgb, var(--accent) 48%, var(--line)) !important;
  background: color-mix(in srgb, var(--accent) 8%, var(--surface)) !important;
}

/* 5. Board Wait / Preview Caption Alignment */
body.workspace-puzzle-page .my-review-board .board-wait,
body.workspace-puzzle-page .storm-learning-board .board-wait {
  position: absolute !important;
  inset: auto 14px 14px !important;
  z-index: 8 !important;
  padding: 8px 14px !important;
  border-radius: 12px !important;
  background: color-mix(in srgb, var(--surface) 94%, transparent) !important;
  border: 1px solid var(--line) !important;
  color: var(--muted) !important;
  font-size: 12px !important;
  line-height: 1.35 !important;
  backdrop-filter: blur(10px) !important;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12) !important;
}
body.workspace-puzzle-page .my-review-board .board-wait strong,
body.workspace-puzzle-page .storm-learning-board .board-wait strong {
  font: 700 13px/1.2 var(--serif) !important;
  color: var(--ink) !important;
  margin-bottom: 2px !important;
}

/* 6. Solver Zero-Scroll & Header Alignment */
@media (min-width: 1181px) {
  body.workspace-puzzle-page {
    overflow: hidden !important;
    height: 100vh !important;
  }
  body.workspace-puzzle-page .workspace-main {
    overflow: hidden !important;
    height: calc(100vh - var(--header-h, 56px)) !important;
  }
  body.workspace-puzzle-page .puzzle-learning-layout {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) minmax(520px, var(--learning-rail-w, 600px)) !important;
    gap: clamp(48px, 3.5vw, 56px) !important;
    align-items: center !important;
    height: 100% !important;
  }
  body.workspace-puzzle-page #solverRatingCard,
  body.workspace-puzzle-page .puzzle-learning-rating-card {
    width: 200px !important;
    min-width: 200px !important;
    max-width: 200px !important;
    flex: 0 0 200px !important;
    box-sizing: border-box !important;
    padding: 10px 14px 10px 16px !important;
  }
  body.workspace-puzzle-page #learningSolverCard {
    width: 100% !important;
    max-width: none !important;
  }
  body.workspace-puzzle-page .puzzle-learning-card-head {
    display: flex !important;
    align-items: flex-start !important;
    justify-content: space-between !important;
    gap: 12px !important;
    min-height: 0 !important;
  }
  body.workspace-puzzle-page .puzzle-learning-card-head > div:first-child {
    min-width: 100px !important;
    flex: 1 1 auto !important;
    display: grid !important;
    justify-items: start !important;
    gap: 6px !important;
  }
}
.personal-session-card { margin: 1rem 0; display: grid; gap: .85rem; }
.personal-session-head { display: flex; align-items: start; justify-content: space-between; gap: 1rem; }
.personal-session-head h2 { margin: .15rem 0 0; }
.personal-session-budget { display: grid; gap: .3rem; font-size: .8rem; font-weight: 700; }
.personal-session-budget select { min-width: 6.5rem; }
.personal-session-items { display: grid; gap: .55rem; margin: 0; padding-left: 1.35rem; }
.personal-session-item { padding: .65rem .75rem; border: 1px solid var(--line, rgba(128,128,128,.28)); border-radius: .75rem; }
.personal-session-item strong, .personal-session-item span, .personal-session-item small { display: block; }
.personal-session-item span { margin-top: .2rem; }
.personal-session-item small { margin-top: .3rem; opacity: .72; }
.personal-session-item.is-completed { border-color: rgba(76, 175, 120, .55); }
.personal-session-item.is-skipped, .personal-session-item.is-unavailable { opacity: .7; }
.personal-session-actions { display: flex; align-items: center; flex-wrap: wrap; gap: .65rem; }
.personal-session-summary { padding: .75rem; border-radius: .75rem; background: rgba(128,128,128,.1); }
@media (max-width: 640px) { .personal-session-head { display: grid; } .personal-session-budget select { width: 100%; } }

/* MAX-155 compact desktop library: keep every filter visible and bound the data list. */
@media (min-width: 1024px) {
  body.workspace-puzzle-page.is-my-puzzles-phase #phaseMyPuzzles,
  body.workspace-puzzle-page.is-my-puzzles-phase #savedSectionPanel,
  body.workspace-puzzle-page.is-my-puzzles-phase .my-puzzles-learning-layout {
    height: 100% !important;
    min-height: 0 !important;
    overflow: hidden !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .my-puzzles-learning-layout {
    align-items: center !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .my-review-board,
  body.workspace-puzzle-page.is-my-puzzles-phase .my-review-rail {
    align-self: center !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .my-review-rail {
    padding: 14px 16px 12px !important;
    overflow: hidden !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .my-review-rail .rail-stack {
    overflow: hidden !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .my-review-rail .puzzle-learning-card-head {
    display: block !important;
    padding-bottom: 9px !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .my-review-rail .puzzle-learning-card-head .head-row {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    justify-content: space-between !important;
    gap: 10px !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .my-review-rail .puzzle-learning-card-head .head-row > div:first-child {
    display: block !important;
    min-width: 0 !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .my-review-rail .puzzle-learning-card-head .puzzle-kicker {
    padding: 3px 7px !important;
    font-size: 8px !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .my-review-rail .puzzle-learning-mode {
    margin-top: 4px !important;
    font-size: 23px !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .my-review-rating-card {
    width: 158px !important;
    min-width: 158px !important;
    max-width: 158px !important;
    padding: 6px 10px !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .my-review-rating-card .puzzle-learning-rating-score strong {
    font-size: 26px !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase #myLibraryMission {
    padding-top: 8px !important;
    overflow: hidden !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .my-review-rail .search {
    flex-basis: 34px !important;
    min-height: 34px !important;
    margin-bottom: 6px !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .my-review-rail .seg.mp-tabs {
    margin: 5px 0 6px !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .my-review-rail .seg.mp-tabs .chip,
  body.workspace-puzzle-page.is-my-puzzles-phase .my-review-rail .seg.mp-tabs button {
    min-height: 32px !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .mp-group-filter-wrap {
    margin-bottom: 5px !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .mp-group-filter-header,
  body.workspace-puzzle-page.is-my-puzzles-phase .mp-group-filter-label,
  body.workspace-puzzle-page.is-my-puzzles-phase .mp-group-filter-status {
    display: none !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .mp-group-option {
    padding: 4px 8px !important;
    font-size: 11px !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .mp-filters {
    display: grid !important;
    grid-template-columns: repeat(4, minmax(0, 1fr)) !important;
    gap: 5px 7px !important;
    padding: 6px 8px !important;
    margin-bottom: 5px !important;
    overflow: visible !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .mp-filter-field {
    min-width: 0 !important;
    gap: 2px !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .mp-filter-field > span {
    font-size: 8px !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .mp-filters .puzzle-select {
    width: 100% !important;
    min-width: 0 !important;
    min-height: 30px !important;
    height: 30px !important;
    padding-block: 3px !important;
    font-size: 11px !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase #myPuzzleClearFilters,
  body.workspace-puzzle-page.is-my-puzzles-phase #myPuzzleFilterCount {
    grid-column: span 2;
    align-self: center;
    font-size: 9px !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .my-review-rail .item-list {
    max-height: none !important;
    overflow-y: auto !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .my-review-rail .puzzle-card,
  body.workspace-puzzle-page.is-my-puzzles-phase .my-review-rail .mp-row {
    min-height: 44px !important;
    padding-block: 5px !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .mp-list-status {
    min-height: 16px !important;
    margin: 0 !important;
    font-size: 10px !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .mp-pagination {
    padding-top: 6px !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .puzzle-reminder-card {
    padding: 8px 10px !important;
    gap: 8px !important;
  }
  body.workspace-puzzle-page.is-my-puzzles-phase .puzzle-learning-actions {
    min-height: 46px !important;
    padding-top: 8px !important;
  }
}