/* ============================================================
   KarpaChess — Scholar's Library theme
   A warm, paper-toned design for calm, focused study.
   ============================================================ */
:root {
  /* Paper tones */
  --paper-0: #f3ecd9;          /* deep cream page */
  --paper-1: #fbf6e8;           /* card surface */
  --paper-2: #efe6cf;            /* subtle block */
  --paper-edge: #d9cfb2;          /* card border */
  --shadow-color: 25 40 60;        /* r g b for shadows */

  /* Ink tones */
  --ink-0: #1e2530;               /* near-black */
  --ink-1: #3a414f;
  --ink-2: #6a6656;
  --ink-3: #9a927e;
  --ink-4: #c6bfa9;

  /* Accents */
  --sage:       #3b7a55;          /* primary action */
  --sage-deep:  #2d5c40;
  --sage-soft:  #dce8d9;
  --coral:      #c25a3c;          /* warnings / highlights */
  --coral-deep: #9e4228;
  --coral-soft: #f6dccf;
  --gold:       #b88a3d;          /* XP / rewards */
  --gold-soft:  #f1dfae;
  --navy:       #2f4a6b;           /* cool accent */
  --plum:       #8a4a6b;            /* tertiary */

  /* Board — classic cream/green */
  --board-a: #ebe1bf;
  --board-b: #6e8c52;

  /* Move / hint overlays */
  --hi-move:    rgba(184, 138, 61, 0.28);
  --hi-legal:   rgba(59, 122, 85, 0.45);
  --hi-capture: rgba(194, 90, 60, 0.55);
  --hi-check:   rgba(194, 90, 60, 0.85);
  --hi-select:  rgba(47, 74, 107, 0.50);

  --shadow-xs: 0 1px 2px rgba(var(--shadow-color) / 0.06);
  --shadow-sm: 0 2px 6px rgba(var(--shadow-color) / 0.08);
  --shadow-md: 0 8px 24px rgba(var(--shadow-color) / 0.10), 0 2px 6px rgba(var(--shadow-color) / 0.06);
  --shadow-lg: 0 18px 48px rgba(var(--shadow-color) / 0.16), 0 4px 12px rgba(var(--shadow-color) / 0.08);
  --shadow-board: 0 20px 40px rgba(var(--shadow-color) / 0.20), 0 2px 6px rgba(var(--shadow-color) / 0.12);

  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 18px;
  --r-xl: 24px;

  --t-fast: 140ms cubic-bezier(.2,.8,.2,1);
  --t-mid:  240ms cubic-bezier(.2,.8,.2,1);
  --t-slow: 420ms cubic-bezier(.2,.8,.2,1);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, Segoe UI, sans-serif;
  color: var(--ink-0);
  background: var(--paper-0);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.modal-open { overflow: hidden; }

[hidden] { display: none !important; }

/* ---------- Paper background ---------- */
.bg-layer {
  position: fixed; inset: 0; z-index: -2; overflow: hidden;
  background:
    radial-gradient(1000px 700px at 10% 10%, #f7f1de 0%, transparent 55%),
    radial-gradient(900px 600px at 95% 100%, #ece2c3 0%, transparent 55%),
    radial-gradient(700px 500px at 50% 50%, #f6efd9 0%, transparent 65%),
    linear-gradient(180deg, #f2ebd6, #ede5cc);
}
.bg-layer::after {
  /* subtle paper grain */
  content: '';
  position: absolute; inset: 0;
  background-image:
    radial-gradient(rgba(60, 50, 30, 0.05) 1px, transparent 1px),
    radial-gradient(rgba(60, 50, 30, 0.03) 1px, transparent 1px);
  background-size: 3px 3px, 7px 7px;
  background-position: 0 0, 1px 1px;
  opacity: 0.5; pointer-events: none;
}
.orb, .grid-overlay { display: none; }

#particles {
  position: fixed; inset: 0; pointer-events: none; z-index: 50;
}

/* ---------- Top bar ---------- */
.topbar {
  height: 64px;
  padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  background: var(--paper-1);
  border-bottom: 1px solid var(--paper-edge);
  position: relative; z-index: 5;
  box-shadow: var(--shadow-xs);
}
.brand { display: flex; align-items: center; gap: 14px; min-width: 220px; }
.brand-crest {
  width: 44px; height: 44px; border-radius: 12px;
  display: grid; place-items: center;
  color: var(--paper-1);
  background: linear-gradient(135deg, var(--sage), var(--sage-deep));
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255,255,255,0.25);
}
.brand-title {
  font-family: 'Fraunces', 'Cinzel', Georgia, serif;
  font-weight: 700; letter-spacing: -0.01em;
  font-size: 20px; line-height: 1;
  color: var(--ink-0);
}
.brand-sub {
  color: var(--ink-2);
  font-size: 10px; letter-spacing: 2.5px; text-transform: uppercase;
  margin-top: 5px; font-weight: 600;
}

.nav-wrap { position: relative; }
.nav-tabs {
  display: flex; gap: 2px; padding: 4px; border-radius: 12px;
  background: var(--paper-2);
  border: 1px solid var(--paper-edge);
}

/* Breadcrumb dropdown toggle — hidden on desktop, shown on mobile */
.nav-crumb {
  display: none;
  align-items: center; gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--paper-edge);
  border-radius: 11px;
  background: var(--paper-1);
  color: var(--ink-0);
  font: 600 13px 'Inter';
  cursor: pointer;
  transition: background var(--t-fast), border-color var(--t-fast);
}
.nav-crumb:hover { background: var(--paper-2); border-color: var(--sage-soft); }
.nav-crumb-chevron { transition: transform var(--t-fast); flex: 0 0 auto; }
.nav-wrap.open .nav-crumb { border-color: var(--sage); background: var(--sage-soft); color: var(--sage-deep); }
.nav-wrap.open .nav-crumb-chevron { transform: rotate(180deg); }
.tab {
  appearance: none; background: transparent; color: var(--ink-2);
  border: 0; padding: 8px 18px; border-radius: 9px;
  font: 600 13px 'Inter'; cursor: pointer;
  transition: color var(--t-fast), background var(--t-fast);
  letter-spacing: 0.01em;
}
.tab:hover { color: var(--ink-0); }
.tab.active {
  color: var(--paper-1);
  background: var(--sage);
  box-shadow: var(--shadow-sm);
}

.top-actions { display: flex; align-items: center; gap: 10px; }
.streak, .xp-chip {
  display: flex; align-items: center; gap: 6px;
  padding: 7px 12px; border-radius: 999px;
  background: var(--paper-1);
  border: 1px solid var(--paper-edge);
  font-weight: 600; font-size: 13px; color: var(--ink-1);
}
.streak-icon { font-size: 14px; }
.xp-chip .xp-icon { color: var(--gold); font-size: 14px; }

.icon-btn {
  appearance: none;
  border: 1px solid var(--paper-edge);
  background: var(--paper-1);
  color: var(--ink-1);
  width: 40px; height: 40px; border-radius: 11px; cursor: pointer;
  display: grid; place-items: center;
  transition: all var(--t-fast);
}
.icon-btn:hover { background: var(--paper-2); color: var(--ink-0); transform: translateY(-1px); }

/* ---------- Layout ---------- */
.layout {
  display: grid;
  grid-template-columns: 320px minmax(480px, 1fr) 360px;
  gap: 20px;
  padding: 20px;
  height: calc(100vh - 64px);
  overflow: hidden;
}
@media (max-width: 1280px) {
  .layout { grid-template-columns: 280px 1fr 320px; gap: 14px; padding: 14px; }
}

.glass {
  background: var(--paper-1);
  border: 1px solid var(--paper-edge);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
}

.panel {
  padding: 18px;
  display: flex; flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

/* ---------- Left panel ---------- */
.player-card {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--r-md);
  background: var(--paper-2);
  border: 1px solid var(--paper-edge);
  transition: all var(--t-fast);
}
.player-card.turn {
  background: linear-gradient(135deg, var(--sage-soft), var(--paper-1));
  border-color: var(--sage);
  box-shadow: 0 0 0 1px var(--sage-soft), var(--shadow-sm);
}
.avatar {
  width: 44px; height: 44px; border-radius: 11px;
  display: grid; place-items: center; font-size: 26px;
  background: var(--paper-1);
  border: 1px solid var(--paper-edge);
  color: var(--ink-0);
}
#player-top .avatar { color: var(--ink-0); background: var(--paper-1); }
.player-name { font-weight: 700; font-size: 14px; color: var(--ink-0); }
.player-meta { font-size: 11px; color: var(--ink-2); margin-top: 2px; }
.timer {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-weight: 600;
  padding: 6px 12px; border-radius: 8px;
  background: var(--paper-1);
  border: 1px solid var(--paper-edge);
  color: var(--ink-0);
  font-size: 15px; letter-spacing: 0.4px;
}
.player-card.turn .timer {
  background: var(--paper-1);
  color: var(--sage-deep);
  border-color: var(--sage);
}
.timer.low { color: var(--coral-deep); animation: pulseCoral 1s ease-in-out infinite; }
@keyframes pulseCoral { 50% { background: var(--coral-soft); } }

.section-title {
  text-transform: uppercase; letter-spacing: 1.8px;
  color: var(--ink-2); font-size: 10px; font-weight: 700;
  margin: 14px 2px 8px;
}

.move-history {
  flex: 1; min-height: 0; overflow-y: auto;
  padding: 10px; border-radius: var(--r-md);
  background: var(--paper-2);
  border: 1px solid var(--paper-edge);
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px; line-height: 1.8;
}
.move-history::-webkit-scrollbar { width: 6px; }
.move-history::-webkit-scrollbar-thumb { background: var(--ink-4); border-radius: 3px; }
.history-empty { color: var(--ink-3); text-align: center; padding: 20px 10px; font-family: Inter; font-size: 12px; font-style: italic; }
.move-pair { display: grid; grid-template-columns: 28px 1fr 1fr; gap: 6px; padding: 3px 6px; border-radius: 6px; }
.move-pair:hover { background: var(--paper-1); }
.move-num { color: var(--ink-3); }
.move-san { color: var(--ink-1); cursor: pointer; padding: 0 4px; border-radius: 4px; }
.move-san:hover { color: var(--sage-deep); background: var(--sage-soft); }
.move-san.current { background: var(--gold-soft); color: var(--ink-0); font-weight: 600; }
.move-san.active { background: var(--sage); color: var(--paper-1); font-weight: 600; }
.move-san.clickable { cursor: pointer; }

.captured-row {
  min-height: 30px; padding: 6px 10px; margin: 8px 0;
  display: flex; flex-wrap: wrap; gap: 2px; align-items: center;
  font-size: 20px; color: var(--ink-2);
  border-radius: 10px;
  background: var(--paper-2);
  border: 1px dashed var(--paper-edge);
}
.captured-row .adv { margin-left: auto; font-size: 12px; font-weight: 700; color: var(--sage-deep); }

/* ---------- Board ---------- */
.board-area {
  display: flex; flex-direction: column; gap: 16px;
  align-items: center; justify-content: center;
  min-height: 0;
}
.board-frame {
  position: relative;
  padding: 22px;
  background: var(--paper-1);
  border: 1px solid var(--paper-edge);
  box-shadow: var(--shadow-md);
  display: grid;
  place-items: center;
}
.board-with-ranks {
  display: grid;
  grid-template-columns: auto max-content auto;
  align-items: stretch;
  gap: 12px;
}
/* Vertical stack of top files · board · bottom files, aligned exactly over the board */
.board-column {
  display: grid;
  grid-template-rows: auto max-content auto;
  gap: 4px;
  align-items: center;
}
.rank-labels, .file-labels {
  color: var(--ink-1);
  font: 700 12px 'JetBrains Mono', monospace;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  user-select: none;
}
.rank-labels {
  display: grid;
  grid-template-rows: repeat(8, 1fr);
  align-self: stretch;
}
.rank-labels span { display: grid; place-items: center; width: 20px; }
.file-labels {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  width: 100%;
}
.file-labels span { display: grid; place-items: center; height: 16px; }

.board {
  --size: min(68vh, 640px);
  width: var(--size); height: var(--size);
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(8, 1fr);
  border-radius: 6px;
  overflow: hidden;
  box-shadow:
    0 0 0 2px rgba(60, 45, 20, 0.55),
    var(--shadow-board);
  position: relative;
  isolation: isolate;
}
.sq {
  position: relative;
  display: grid; place-items: center;
  font-size: calc(var(--size) / 9);
  line-height: 1;
  user-select: none;
  cursor: pointer;
}
.sq.light { background: var(--board-a); }
.sq.dark  { background: var(--board-b); }

.sq.last-move::after {
  content: ''; position: absolute; inset: 0;
  background: var(--hi-move); pointer-events: none;
}
.sq.selected::after {
  content: ''; position: absolute; inset: 0;
  background: var(--hi-select); pointer-events: none;
  box-shadow: inset 0 0 0 3px var(--navy);
}
.sq.check {
  background: radial-gradient(circle at center, var(--hi-check), transparent 70%), var(--board-b);
  animation: checkPulse 1.1s ease-in-out infinite;
}
.sq.light.check {
  background: radial-gradient(circle at center, var(--hi-check), transparent 70%), var(--board-a);
}
@keyframes checkPulse { 50% { filter: brightness(1.15); } }

.sq .dot {
  position: absolute; width: 26%; height: 26%;
  border-radius: 50%; background: var(--hi-legal);
  pointer-events: none;
  animation: dotIn 180ms var(--t-fast);
}
.sq.capture::before {
  content: ''; position: absolute; inset: 6%;
  border-radius: 50%;
  border: 4px solid var(--hi-capture);
  pointer-events: none;
  animation: dotIn 180ms var(--t-fast);
}
@keyframes dotIn { from { transform: scale(0); opacity: 0; } }

.piece {
  pointer-events: none;
  position: absolute; inset: 0;
  display: grid; place-items: center;
  font-size: inherit;
  z-index: 2;
  font-family: 'Segoe UI Symbol', 'Apple Symbols', 'Noto Sans Symbols', 'Arial Unicode MS', 'DejaVu Sans', serif;
}
.piece.white {
  color: #f9f6ed;
  text-shadow:
    0 0 0 rgba(0,0,0,0.2),
    -1px -1px 0 rgba(80, 60, 30, 0.7),
    1px -1px 0 rgba(80, 60, 30, 0.7),
    -1px 1px 0 rgba(80, 60, 30, 0.7),
    1px 1px 0 rgba(80, 60, 30, 0.7),
    0 3px 4px rgba(0,0,0,0.35);
}
.piece.black {
  color: #1e2530;
  text-shadow: 0 2px 3px rgba(255,255,255,0.2), 0 1px 0 rgba(0,0,0,0.4);
}
.piece.moving { transition: transform 220ms cubic-bezier(.2,.8,.2,1); will-change: transform; z-index: 10; }
.sq.dragging .piece { opacity: 0.2; }
.piece.captured { animation: pieceOut 260ms forwards; }
@keyframes pieceOut {
  to { transform: scale(0) rotate(30deg); opacity: 0; }
}

.board-overlay { position: absolute; inset: 0; pointer-events: none; }

/* ---------- Board holder: stacks board + hint arrow overlay ---------- */
.board-holder {
  position: relative;
  display: grid;
  grid-template-columns: max-content;
  grid-template-rows: max-content;
  justify-self: center;
  align-self: center;
}
.board-holder > .board { grid-column: 1; grid-row: 1; }
.hint-arrow {
  grid-column: 1; grid-row: 1;
  width: 100%; height: 100%;
  pointer-events: none;
  overflow: visible;
  color: var(--coral);
  filter: drop-shadow(0 2px 6px rgba(30, 37, 48, 0.35));
  z-index: 6;
  animation: hintPulse 1.8s ease-in-out infinite;
}
@keyframes hintPulse { 0%, 100% { opacity: 0.9; } 50% { opacity: 1; } }

.game-banner {
  position: absolute; inset: 50% 0 auto 0;
  transform: translateY(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 28px 32px 24px;
  margin: 0 40px;
  background: var(--paper-1);
  border: 1px solid var(--sage);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  animation: bannerIn 420ms var(--t-slow);
  z-index: 5;
  text-align: center;
}
@keyframes bannerIn { from { opacity: 0; transform: translateY(-50%) scale(0.92);} }
.banner-icon { font-size: 40px; line-height: 1; margin-bottom: 4px; }
.banner-title { font-family: 'Fraunces', serif; font-weight: 700; font-size: 30px; color: var(--sage-deep); letter-spacing: -0.01em; margin: 0; }
.banner-sub { color: var(--ink-1); font-size: 14px; margin-bottom: 14px; }
.banner-actions { display: flex; gap: 10px; }
.banner-actions .btn { min-width: 130px; justify-content: center; }
.banner-close {
  position: absolute; top: 10px; right: 10px;
  width: 32px; height: 32px;
  font-size: 14px; line-height: 1;
  color: var(--ink-2);
  background: transparent; border: 0;
}
.banner-close:hover { color: var(--ink-0); background: var(--paper-2); }

/* ---------- Hint card ---------- */
.hint-card {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border-radius: var(--r-lg);
  background: linear-gradient(90deg, var(--gold-soft), var(--paper-1));
  border: 1px solid rgba(184, 138, 61, 0.4);
  border-left: 4px solid var(--coral);
  box-shadow: var(--shadow-md);
  max-width: min(680px, 100%);
  animation: hintIn 300ms var(--t-mid);
}
@keyframes hintIn { from { opacity: 0; transform: translateY(-6px); } }
.hint-icon {
  width: 44px; height: 44px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--coral);
  color: var(--paper-1);
  box-shadow: var(--shadow-xs);
}
.hint-body { min-width: 0; }
.hint-eyebrow {
  font-size: 10px; text-transform: uppercase; letter-spacing: 1.8px;
  color: var(--ink-2); font-weight: 700;
}
.hint-move {
  font-family: 'Fraunces', serif;
  font-size: 24px; font-weight: 700;
  color: var(--ink-0);
  letter-spacing: -0.01em;
  margin: 2px 0 4px;
}
.hint-text {
  font-size: 13px; line-height: 1.45;
  color: var(--ink-1);
}
.hint-actions { display: flex; gap: 6px; align-items: center; }

/* ---------- Board controls ---------- */
.board-controls {
  display: flex; gap: 8px; flex-wrap: wrap; justify-content: center;
}
.btn {
  appearance: none;
  border: 1px solid var(--paper-edge);
  background: var(--paper-1);
  color: var(--ink-0);
  padding: 10px 18px; border-radius: 11px;
  font: 600 13px Inter; cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px;
  transition: all var(--t-fast);
  box-shadow: var(--shadow-xs);
}
.btn:hover { background: var(--paper-2); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.btn:active { transform: translateY(0); }
.btn.primary {
  background: linear-gradient(180deg, var(--sage), var(--sage-deep));
  color: var(--paper-1); border-color: transparent;
  box-shadow: var(--shadow-sm);
}
.btn.primary:hover { box-shadow: var(--shadow-md); }
.btn.accent {
  background: linear-gradient(180deg, var(--coral), var(--coral-deep));
  color: var(--paper-1); border-color: transparent;
  box-shadow: var(--shadow-sm);
}
.btn.ghost { background: transparent; }
.btn.ghost:hover { background: var(--paper-2); }
.btn.danger { color: var(--coral-deep); border-color: var(--coral-soft); }
.btn.danger:hover { background: var(--coral-soft); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

/* ---------- Right panel ---------- */
.panel-right { overflow-y: auto; }
.panel-right::-webkit-scrollbar { width: 6px; }
.panel-right::-webkit-scrollbar-thumb { background: var(--ink-4); border-radius: 3px; }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.panel-title {
  font-family: 'Fraunces', serif;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.01em;
  margin: 6px 0 8px;
  color: var(--ink-0);
}
.panel-lede { color: var(--ink-2); font-size: 13px; margin: -2px 0 14px; }

.mode-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 16px; }
.mode-card {
  appearance: none; cursor: pointer; text-align: left;
  padding: 12px; border-radius: var(--r-md);
  background: var(--paper-2); border: 1px solid var(--paper-edge);
  color: var(--ink-1); display: flex; flex-direction: column; gap: 4px;
  transition: all var(--t-fast);
}
.mode-card:hover { background: var(--paper-1); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.mode-card.active {
  border-color: var(--sage);
  background: linear-gradient(180deg, var(--sage-soft), var(--paper-1));
  box-shadow: 0 0 0 1px var(--sage), var(--shadow-sm);
}
.mode-card:nth-child(3) { grid-column: 1 / -1; }
.mode-emoji { font-size: 22px; }
.mode-label { font-weight: 700; font-size: 14px; color: var(--ink-0); }
.mode-sub { font-size: 11px; color: var(--ink-2); }

.field { margin-bottom: 14px; }
.field > label,
.settings-section label:not(.switch):not(.mini) {
  display: block; font-size: 10px; text-transform: uppercase; letter-spacing: 1.8px;
  color: var(--ink-2); margin-bottom: 6px; font-weight: 700;
}

.difficulty, .segmented {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 3px;
  padding: 3px; border-radius: 11px;
  background: var(--paper-2);
  border: 1px solid var(--paper-edge);
}
.segmented { grid-template-columns: repeat(3, 1fr); }
.segmented.four { grid-template-columns: repeat(4, 1fr); }
.diff-pill, .seg {
  appearance: none; border: 0; cursor: pointer;
  background: transparent; color: var(--ink-2);
  padding: 8px 10px; border-radius: 8px; font: 600 12px Inter;
  transition: all var(--t-fast);
}
.diff-pill:hover, .seg:hover { color: var(--ink-0); background: var(--paper-1); }
.diff-pill.active, .seg.active {
  color: var(--paper-1);
  background: var(--sage);
  box-shadow: var(--shadow-xs);
}

.divider { height: 1px; background: var(--paper-edge); margin: 18px 0; }

.coach-whisper { min-height: 60px; display: flex; flex-direction: column; gap: 8px; }
.whisper-bubble {
  padding: 11px 14px; border-radius: 12px;
  background: var(--paper-2);
  border: 1px solid var(--paper-edge);
  border-left: 3px solid var(--navy);
  font-size: 13px; line-height: 1.5; color: var(--ink-1);
  animation: slideIn 240ms var(--t-mid);
}
.whisper-bubble.coach-good {
  border-left-color: var(--sage);
  background: linear-gradient(90deg, var(--sage-soft), var(--paper-2));
}
.whisper-bubble.coach-warn {
  border-left-color: var(--coral);
  background: linear-gradient(90deg, var(--coral-soft), var(--paper-2));
}
@keyframes slideIn { from { transform: translateY(6px); opacity: 0; } }

/* ---------- Lessons list ---------- */
.lesson-list { display: grid; gap: 8px; }
.lesson-card {
  padding: 12px 14px; border-radius: var(--r-md);
  background: var(--paper-2); border: 1px solid var(--paper-edge);
  display: grid; grid-template-columns: 1fr auto; gap: 10px;
  align-items: center; cursor: pointer;
  transition: all var(--t-fast);
}
.lesson-card:hover {
  background: var(--paper-1);
  border-color: var(--sage);
  transform: translateX(2px);
  box-shadow: var(--shadow-sm);
}
.lesson-card.done { background: linear-gradient(180deg, var(--sage-soft), var(--paper-2)); }
.lesson-card.done .lesson-title::before { content: '✓ '; color: var(--sage-deep); }
.lesson-title { font-weight: 700; font-size: 14px; color: var(--ink-0); }
.lesson-sub { font-size: 12px; color: var(--ink-2); margin-top: 3px; }
.lesson-arrow { color: var(--ink-3); font-size: 18px; }
.lesson-diff {
  font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px;
  color: var(--ink-3); font-weight: 700;
  padding: 2px 6px; border-radius: 4px;
  background: var(--paper-1); border: 1px solid var(--paper-edge);
  align-self: start;
}

/* ---------- Shared: back-link, progress, step ---------- */
.back-link {
  appearance: none; border: 0; cursor: pointer; background: transparent;
  color: var(--ink-2); font: 600 12px Inter;
  padding: 4px 0; margin-bottom: 8px;
  display: inline-flex; align-items: center; gap: 4px;
  transition: color var(--t-fast);
}
.back-link:hover { color: var(--sage-deep); }

.progress-bar {
  height: 6px; border-radius: 999px;
  background: var(--paper-2);
  border: 1px solid var(--paper-edge);
  overflow: hidden;
  margin: 10px 0;
}
.progress-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--sage), var(--sage-deep));
  transition: width 280ms cubic-bezier(.2,.8,.2,1);
}

/* ---------- Learn ---------- */
.category-list { display: grid; gap: 10px; }
.category-card {
  appearance: none; cursor: pointer; text-align: left;
  padding: 14px 16px; border-radius: var(--r-md);
  background: var(--paper-1); border: 1px solid var(--paper-edge);
  display: grid; grid-template-columns: 48px 1fr auto; gap: 12px;
  align-items: center;
  transition: all var(--t-fast);
}
.category-card:hover {
  border-color: var(--sage);
  transform: translateX(2px);
  box-shadow: var(--shadow-sm);
}
.category-card .cat-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: grid; place-items: center; font-size: 26px;
  background: linear-gradient(135deg, var(--sage-soft), var(--paper-2));
  border: 1px solid var(--sage-soft);
  color: var(--sage-deep);
}
.category-card .cat-title { font-family: 'Fraunces', serif; font-weight: 700; font-size: 17px; color: var(--ink-0); letter-spacing: -0.01em; }
.category-card .cat-desc { font-size: 12px; color: var(--ink-2); margin-top: 3px; line-height: 1.4; }
.category-card .cat-count {
  font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px;
  color: var(--ink-3); font-weight: 700;
}

.step-content {
  padding: 14px; border-radius: var(--r-md);
  background: var(--paper-2); border: 1px solid var(--paper-edge);
  margin-bottom: 10px;
}
.step-content.teach { border-left: 3px solid var(--sage); }
.step-content.play { border-left: 3px solid var(--gold); background: var(--gold-soft); }
.step-title {
  font-family: 'Fraunces', serif; font-weight: 700;
  font-size: 18px; color: var(--ink-0);
  letter-spacing: -0.01em; margin-bottom: 8px;
}
.step-text, .step-prompt { font-size: 13px; line-height: 1.6; color: var(--ink-1); }
.step-prompt { font-weight: 600; }

.step-feedback {
  min-height: 22px; font-size: 13px; font-weight: 600;
  margin-bottom: 10px; padding: 0 2px;
}
.step-feedback.good { color: var(--sage-deep); }
.step-feedback.bad { color: var(--coral-deep); }

.step-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.lesson-complete {
  text-align: center; padding: 24px 18px;
  background: linear-gradient(180deg, var(--sage-soft), var(--paper-1));
  border: 1px solid var(--sage);
  border-radius: var(--r-lg);
  animation: lessonIn 360ms cubic-bezier(.2,.8,.2,1);
}
@keyframes lessonIn { from { opacity: 0; transform: scale(0.95); } }
.lesson-complete .trophy { font-size: 44px; margin-bottom: 8px; }
.lesson-complete h3 { font-family: 'Fraunces', serif; color: var(--sage-deep); margin: 0 0 6px; }
.lesson-complete p { margin: 0 0 14px; color: var(--ink-1); font-size: 13px; }

/* ---------- Puzzles ---------- */
.theme-list { display: grid; gap: 10px; }
.theme-card {
  appearance: none; cursor: pointer; text-align: left;
  padding: 14px 16px; border-radius: var(--r-md);
  background: var(--paper-1); border: 1px solid var(--paper-edge);
  display: grid; grid-template-columns: 48px 1fr auto; gap: 12px;
  align-items: center;
  transition: all var(--t-fast);
}
.theme-card:hover {
  border-color: var(--gold); transform: translateX(2px); box-shadow: var(--shadow-sm);
}
.theme-card .theme-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: grid; place-items: center; font-size: 26px;
  background: linear-gradient(135deg, var(--gold-soft), var(--paper-2));
  border: 1px solid var(--gold-soft);
  color: var(--gold);
}
.theme-card .theme-title { font-family: 'Fraunces', serif; font-weight: 700; font-size: 17px; color: var(--ink-0); }
.theme-card .theme-desc { font-size: 12px; color: var(--ink-2); margin-top: 3px; line-height: 1.4; }
.theme-card .theme-count { font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; color: var(--ink-3); font-weight: 700; }

.puzzle-counter {
  font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px;
  color: var(--ink-2); font-weight: 700;
  margin-bottom: 10px;
}
.puzzle-theme {
  padding: 12px 14px; border-radius: var(--r-md);
  background: var(--paper-2); border: 1px solid var(--paper-edge);
  color: var(--ink-1); font-size: 13px; line-height: 1.5;
  margin-bottom: 10px;
  text-align: center;
}
.puzzle-prompt {
  padding: 12px 14px; border-radius: var(--r-md);
  background: var(--gold-soft);
  border: 1px solid rgba(184, 138, 61, 0.4);
  border-left: 3px solid var(--gold);
  color: var(--ink-1); font-size: 13px; line-height: 1.5;
  margin-bottom: 10px;
  min-height: 0;
}
.puzzle-prompt:empty { display: none; }
.puzzle-feedback { min-height: 22px; font-size: 13px; color: var(--ink-1); margin-bottom: 12px; font-weight: 600; }
.puzzle-feedback.good { color: var(--sage-deep); }
.puzzle-feedback.bad { color: var(--coral-deep); }
.puzzle-actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---------- Practice views (standard vs review) ---------- */
.practice-view { display: block; }
.practice-view[hidden] { display: none !important; }

/* ---------- Review panel ---------- */
.review-empty, .review-running, .review-done {
  padding: 14px 16px;
  border-radius: var(--r-md);
  background: var(--paper-2);
  border: 1px solid var(--paper-edge);
  margin-bottom: 12px;
  font-size: 13px; color: var(--ink-1); line-height: 1.5;
}
.review-actions { display: flex; gap: 8px; margin-top: 8px; }
.review-progress-text { font-size: 11px; color: var(--ink-2); text-align: center; margin-top: 6px; }
.review-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px;
  margin-bottom: 12px;
}
.review-stat {
  padding: 8px 6px; border-radius: 8px; text-align: center;
  background: var(--paper-1); border: 1px solid var(--paper-edge);
}
.review-stat .stat-num {
  font-family: 'Fraunces', serif; font-weight: 700; font-size: 22px;
  display: block; line-height: 1.1;
}
.review-stat .stat-lbl {
  font-size: 9px; text-transform: uppercase; letter-spacing: 1.2px;
  color: var(--ink-2); font-weight: 700;
}
.review-stat.good .stat-num { color: var(--sage-deep); }
.review-stat.ok .stat-num { color: var(--ink-1); }
.review-stat.inaccuracy .stat-num { color: #b08030; }
.review-stat.mistake .stat-num { color: #c17d3e; }
.review-stat.blunder .stat-num { color: var(--coral-deep); }
.review-moves {
  display: grid; gap: 4px;
  max-height: 32vh; overflow-y: auto;
  padding: 4px;
  border-radius: var(--r-md);
  background: var(--paper-1);
  border: 1px solid var(--paper-edge);
  margin-bottom: 10px;
}
.review-row {
  display: grid; grid-template-columns: 30px 60px 1fr auto; gap: 8px;
  padding: 6px 10px; border-radius: 6px;
  font-family: 'JetBrains Mono', monospace; font-size: 13px;
  cursor: pointer;
  align-items: center;
  transition: background var(--t-fast);
}
.review-row:hover { background: var(--paper-2); }
.review-row.active { background: var(--sage-soft); border-left: 3px solid var(--sage); padding-left: 7px; }
.review-row .rv-num { color: var(--ink-3); }
.review-row .rv-san { color: var(--ink-0); font-weight: 600; }
.review-row .rv-note { font-family: Inter, sans-serif; font-size: 11px; color: var(--ink-2); }
.review-row .rv-badge {
  font-size: 9px; text-transform: uppercase; letter-spacing: 1.2px;
  padding: 2px 6px; border-radius: 4px; font-weight: 700;
}
.review-row .rv-badge.good { background: var(--sage-soft); color: var(--sage-deep); }
.review-row .rv-badge.ok { background: var(--paper-2); color: var(--ink-2); }
.review-row .rv-badge.inaccuracy { background: #f4e3c2; color: #8a5f1c; }
.review-row .rv-badge.mistake { background: #f1ceba; color: #94441c; }
.review-row .rv-badge.blunder { background: var(--coral-soft); color: var(--coral-deep); }
.review-detail {
  padding: 12px; border-radius: var(--r-md);
  background: var(--paper-2); border: 1px solid var(--paper-edge);
  font-size: 13px; line-height: 1.5; color: var(--ink-1);
  min-height: 40px;
}
.review-detail:empty::before {
  content: 'Click a move above to see engine commentary.';
  color: var(--ink-3); font-style: italic;
}

/* ---------- AI Coach tab ---------- */
.coach-status {
  display: flex; align-items: center; gap: 10px;
  flex-wrap: wrap;
  padding: 10px 14px; border-radius: 12px;
  background: var(--paper-2); border: 1px solid var(--paper-edge);
  margin-bottom: 12px;
  font-size: 13px; color: var(--ink-1);
}
.coach-status-label {
  font-size: 10px; text-transform: uppercase; letter-spacing: 1.8px;
  color: var(--ink-2); font-weight: 700;
}
.coach-status-value {
  flex: 1; min-width: 0;
  font-weight: 700; color: var(--ink-0);
}
.coach-status-link {
  appearance: none; border: 0; cursor: pointer;
  background: transparent; color: var(--sage-deep);
  font: 600 12px Inter; padding: 0;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.coach-status-link:hover { color: var(--sage); }
.coach-chat {
  min-height: 200px; max-height: 44vh; overflow-y: auto;
  padding: 12px; border-radius: var(--r-md);
  background: var(--paper-2); border: 1px solid var(--paper-edge);
  display: flex; flex-direction: column; gap: 8px;
  margin-bottom: 10px;
}
.msg { padding: 10px 12px; border-radius: 12px; font-size: 13px; line-height: 1.5; max-width: 90%; }
.msg.user {
  align-self: flex-end;
  background: var(--navy); color: var(--paper-1);
}
.msg.bot {
  align-self: flex-start;
  background: var(--paper-1);
  border: 1px solid var(--paper-edge);
  color: var(--ink-0);
}
.msg.bot.thinking::after { content: '•••'; animation: dots 1s infinite; }
@keyframes dots { 50% { opacity: 0.4; } }

.coach-input { display: flex; gap: 6px; margin-bottom: 8px; }
.coach-input input {
  flex: 1; min-width: 0;
  padding: 10px 13px; border-radius: 10px;
  background: var(--paper-1);
  border: 1px solid var(--paper-edge);
  color: var(--ink-0); font: 500 13px Inter;
  transition: border-color var(--t-fast);
}
.coach-input input:focus { outline: none; border-color: var(--sage); box-shadow: 0 0 0 3px var(--sage-soft); }
.coach-suggestions { display: flex; flex-wrap: wrap; gap: 6px; }
.sug {
  appearance: none; cursor: pointer;
  padding: 6px 12px; border-radius: 999px;
  background: var(--paper-1); border: 1px solid var(--paper-edge);
  color: var(--ink-1); font: 500 11px Inter;
  transition: all var(--t-fast);
}
.sug:hover { color: var(--sage-deep); background: var(--sage-soft); border-color: var(--sage); }

/* ---------- Modal (unified) ----------
   Modals use the `hidden` attribute for on/off, and a transient `.is-open`
   class applied via JS *after* display:grid becomes effective. The class
   drives a one-way transition from opacity/translate to final — this means
   the entrance animation only runs when we explicitly open the modal,
   never when toggling unrelated state inside it.                           */
.modal-backdrop {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(30, 37, 48, 0.55);
  display: grid; place-items: center;
  opacity: 0;
  transition: opacity 180ms ease;
}
.modal-backdrop.is-open { opacity: 1; }

.modal {
  width: min(560px, 92vw); max-height: 86vh; overflow-y: auto;
  padding: 0; border-radius: var(--r-xl);
  background: var(--paper-1);
  border: 1px solid var(--paper-edge);
  box-shadow: var(--shadow-lg);
  transform: translateY(14px) scale(0.97);
  opacity: 0;
  transition: transform 240ms cubic-bezier(.2,.8,.2,1), opacity 200ms ease;
}
.modal-backdrop.is-open .modal {
  transform: none;
  opacity: 1;
}
/* Prevent pointer interaction while not open (blocks accidental clicks during transition) */
.modal-backdrop:not(.is-open) { pointer-events: none; }
.modal::-webkit-scrollbar { width: 6px; }
.modal::-webkit-scrollbar-thumb { background: var(--ink-4); border-radius: 3px; }
.modal-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--paper-edge);
}
.modal-head h2 {
  margin: 0;
  font-family: 'Fraunces', serif;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--ink-0);
}
.modal-body { padding: 22px 24px; }
.settings-section { margin-bottom: 24px; }
.settings-section h3 {
  font-size: 11px; text-transform: uppercase; letter-spacing: 2px;
  color: var(--sage-deep); margin: 0 0 12px; font-weight: 700;
}
.settings-section input[type="text"],
.settings-section input[type="password"],
.settings-section .select {
  width: 100%; padding: 10px 13px; border-radius: 10px;
  background: var(--paper-2);
  border: 1px solid var(--paper-edge);
  color: var(--ink-0); font: 500 13px 'JetBrains Mono', monospace;
  transition: border-color var(--t-fast);
}
.settings-section .select {
  appearance: none;
  font-family: Inter, system-ui, sans-serif;
  font-weight: 600;
  cursor: pointer;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'><path fill='%236a6656' d='M4 6l4 4 4-4z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 34px;
}
.settings-section input:focus, .settings-section .select:focus {
  outline: none; border-color: var(--sage); box-shadow: 0 0 0 3px var(--sage-soft);
}

/* Provider-config blocks: only the selected provider is visible */
.provider-config {
  padding: 14px;
  border-radius: var(--r-md);
  background: var(--paper-2);
  border: 1px solid var(--paper-edge);
  margin-top: 10px;
}
.provider-config .field:last-child { margin-bottom: 0; }
.provider-note {
  font-size: 13px; color: var(--ink-1); line-height: 1.5;
  padding: 4px 0;
}
.hint-row { display: grid; grid-template-columns: 60px 1fr; align-items: center; gap: 8px; margin-top: 6px; }
.hint-row label.mini { font-size: 10px; color: var(--ink-3); text-transform: uppercase; letter-spacing: 1.2px; font-weight: 700; }

.switch { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink-1); cursor: pointer; margin-right: 8px; }
.switch input {
  appearance: none; width: 36px; height: 20px; border-radius: 999px;
  background: var(--ink-4);
  position: relative; cursor: pointer;
  transition: background var(--t-fast);
}
.switch input::after {
  content: ''; position: absolute; top: 2px; left: 2px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--paper-1);
  box-shadow: var(--shadow-xs);
  transition: transform var(--t-fast);
}
.switch input:checked { background: var(--sage); }
.switch input:checked::after { transform: translateX(16px); }
.field-row { display: flex; flex-wrap: wrap; gap: 10px; }

.theme-grid { display: flex; gap: 8px; flex-wrap: wrap; }
.theme-swatch {
  appearance: none; width: 52px; height: 52px; border-radius: 12px;
  background: linear-gradient(135deg, var(--a) 50%, var(--b) 50%);
  border: 2px solid transparent; cursor: pointer;
  transition: transform var(--t-fast), border-color var(--t-fast);
  box-shadow: var(--shadow-xs);
}
.theme-swatch:hover { transform: scale(1.05); }
.theme-swatch.active { border-color: var(--sage); box-shadow: 0 0 0 2px var(--sage-soft), var(--shadow-sm); }

.muted { color: var(--ink-2); }
.small { font-size: 12px; }

/* ---------- Promotion ---------- */
.modal-backdrop.small .promotion {
  padding: 24px; border-radius: var(--r-lg);
  text-align: center; width: min(420px, 92vw);
  background: var(--paper-1);
  border: 1px solid var(--sage);
  box-shadow: var(--shadow-lg);
  transform: translateY(14px) scale(0.97);
  opacity: 0;
  transition: transform 240ms cubic-bezier(.2,.8,.2,1), opacity 200ms ease;
}
.modal-backdrop.small.is-open .promotion {
  transform: none;
  opacity: 1;
}
.promotion-title {
  font-family: 'Fraunces', serif;
  font-size: 20px; margin-bottom: 16px;
  color: var(--sage-deep);
  letter-spacing: -0.01em; font-weight: 700;
}
.promotion-choices { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.promo-choice {
  appearance: none; cursor: pointer;
  padding: 14px 6px; border-radius: 12px;
  background: var(--paper-2);
  border: 1px solid var(--paper-edge);
  color: var(--ink-0);
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  transition: all var(--t-fast);
  font-family: 'Segoe UI Symbol', 'Apple Symbols', 'Noto Sans Symbols', 'Arial Unicode MS', 'DejaVu Sans', sans-serif;
}
.promo-choice .promo-glyph {
  font-size: 44px; line-height: 1;
  text-shadow: 0 2px 4px rgba(0,0,0,0.12);
}
.promo-choice .promo-name {
  font-family: 'Inter', sans-serif;
  font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1.2px;
  color: var(--ink-2);
}
.promo-choice:hover {
  background: var(--paper-1);
  border-color: var(--sage);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.promo-choice:hover .promo-name { color: var(--sage-deep); }

/* ---------- Toast ---------- */
.toast-wrap { position: fixed; top: 84px; right: 22px; z-index: 200; display: flex; flex-direction: column; gap: 8px; }
.toast {
  padding: 12px 16px; border-radius: 12px;
  background: var(--paper-1);
  border: 1px solid var(--paper-edge);
  border-left: 3px solid var(--navy);
  color: var(--ink-0); font-size: 13px; max-width: 320px;
  animation: toastIn 240ms var(--t-mid);
  box-shadow: var(--shadow-md);
}
.toast.success { border-left-color: var(--sage); }
.toast.error { border-left-color: var(--coral); }
.toast.info { border-left-color: var(--navy); }
@keyframes toastIn { from { opacity: 0; transform: translateX(20px); } }
.toast.out { animation: toastOut 200ms forwards; }
@keyframes toastOut { to { opacity: 0; transform: translateX(20px); } }

/* ============================================================
   Commentator — Match Studio
   ============================================================ */

/* Draw overlay lives alongside the hint arrow inside board-holder. */
.draw-overlay {
  position: absolute; inset: 0; width: 100%; height: 100%;
  pointer-events: none;
  overflow: visible;
}
.board-holder .draw-overlay { z-index: 4; }

/* Pointer-events on the overlay are managed by the JS (creation tools capture
   all clicks; select/eraser let empty-square clicks fall through to pieces).
   Shapes always catch clicks via their own pointer-events below. */

/* Per-tool cursor. Default for creation tools is crosshair; select is the
   normal arrow (selecting shapes isn't a drawing action); text uses the
   I-beam; eraser keeps crosshair so you can aim precisely at a shape. */
body.mode-commentator .sq,
body.mode-commentator.draw-tool-arrow  .sq,
body.mode-commentator.draw-tool-line   .sq,
body.mode-commentator.draw-tool-rect   .sq,
body.mode-commentator.draw-tool-circle .sq,
body.mode-commentator.draw-tool-pen    .sq,
body.mode-commentator.draw-tool-eraser .sq { cursor: crosshair; }
body.mode-commentator.draw-tool-select .sq,
body.mode-commentator.draw-tool-select .piece { cursor: default; }
body.mode-commentator.draw-tool-text   .sq { cursor: text; }

/* Text annotations: bold serif with a faint outline so they read on any square */
.draw-text {
  font-family: 'Fraunces', serif; font-weight: 700; letter-spacing: .02em;
  paint-order: stroke; stroke: rgba(0,0,0,0.35); stroke-width: 0.04;
}

/* Shapes always respond to clicks even when SVG background is pointer-none */
.draw-shape-g,
.draw-hit,
.draw-text,
.draw-handle { pointer-events: auto; }

/* Inline text editor — floats above the board at the click point */
.draw-text-editor {
  position: absolute;
  transform: translate(-50%, -50%);
  min-width: 120px;
  max-width: 70%;
  padding: 4px 10px;
  background: rgba(251, 246, 232, 0.96);
  border: 2px solid currentColor;
  border-radius: 6px;
  font-family: 'Fraunces', serif;
  font-size: 16px;
  font-weight: 700;
  text-align: center;
  outline: none;
  box-shadow: var(--shadow-md);
  z-index: 10;
  caret-color: currentColor;
}
.draw-text-editor::placeholder { color: rgba(0,0,0,0.35); font-weight: 400; }

/* Selection chrome */
.draw-shape-g.selected { filter: drop-shadow(0 0 .05px rgba(0,0,0,0.25)); }
.draw-outline {
  fill: none;
  stroke: rgba(47, 74, 107, 0.85);
  stroke-width: 0.03;
  stroke-dasharray: 0.14 0.1;
  pointer-events: none;
}
.draw-handle {
  fill: #fbf6e8;
  stroke: #2f4a6b;
  stroke-width: 0.035;
  cursor: nwse-resize;
  pointer-events: auto;
}
.draw-handle.edge { cursor: ns-resize; }
.draw-handle.end  { cursor: move; fill: #c25a3c; stroke: #9e4228; rx: 0.04; }
.draw-handle.rot {
  cursor: grab;
  fill: #3b7a55;
  stroke: #2d5c40;
}
.draw-rot-stem { stroke: rgba(47, 74, 107, 0.7); stroke-width: 0.02; }
.draw-hit      { cursor: grab; }

/* Variation cue — dim the square backgrounds (but NOT the pieces, which stay
   crisp) so it's unmistakable you've stepped off the main line. */
body.mode-commentator .sq { transition: background-color var(--t-mid); }
body.mode-commentator.off-main-line .sq.light { background: color-mix(in srgb, var(--board-a) 55%, var(--paper-0)); }
body.mode-commentator.off-main-line .sq.dark  { background: color-mix(in srgb, var(--board-b) 55%, var(--paper-0)); }
body.mode-commentator.off-main-line .file-labels,
body.mode-commentator.off-main-line .rank-labels { opacity: 0.5; transition: opacity var(--t-mid); }

/* Swap practice controls for drawing toolbar — but only once a match is
   loaded (no match = nothing to draw on). */
.cm-draw-toolbar { display: none; }
body.mode-commentator.cm-has-match .cm-draw-toolbar {
  display: flex; flex-direction: column; gap: 10px;
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: var(--r-md);
  background: var(--paper-1);
  border: 1px solid var(--paper-edge);
  box-shadow: var(--shadow-sm);
}
body.mode-commentator .board-controls { display: none; }
.draw-tools { display: flex; gap: 6px; flex-wrap: wrap; }
.draw-tool {
  padding: 6px 10px;
  border: 1px solid var(--paper-edge);
  background: var(--paper-2);
  border-radius: 8px;
  font: inherit; font-size: 12px;
  color: var(--ink-1);
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px;
  transition: all var(--t-fast);
}
.draw-tool:hover { background: var(--paper-1); border-color: var(--sage); color: var(--sage-deep); }
.draw-tool.active {
  background: var(--sage-soft);
  border-color: var(--sage);
  color: var(--sage-deep);
  font-weight: 600;
}
.draw-icon { font-size: 14px; line-height: 1; }
.draw-style-row {
  display: flex; align-items: center; gap: 8px;
  flex-wrap: wrap;
}
.draw-colors { display: flex; gap: 4px; align-items: center; }
.draw-swatch {
  width: 20px; height: 20px;
  border-radius: 50%;
  border: 2px solid var(--paper-edge);
  cursor: pointer;
  transition: all var(--t-fast);
  padding: 0;
}
.draw-swatch:hover { transform: scale(1.12); }
.draw-swatch.active {
  outline: 2px solid var(--ink-0);
  outline-offset: 2px;
}
.draw-width {
  flex: 1;
  min-width: 60px;
  accent-color: var(--sage);
  margin: 0;
}
.draw-iconbtn {
  width: 28px; height: 28px;
  padding: 0;
  border: 1px solid var(--paper-edge);
  border-radius: 6px;
  background: var(--paper-2);
  color: var(--ink-1);
  cursor: pointer;
  font-size: 14px; line-height: 1;
  display: inline-flex; align-items: center; justify-content: center;
  transition: all var(--t-fast);
}
.draw-iconbtn:hover { background: var(--paper-1); border-color: var(--sage); color: var(--sage-deep); }
.draw-iconbtn-warn { color: var(--coral-deep); }
.draw-iconbtn-warn:hover { background: var(--coral-soft); border-color: var(--coral); color: var(--coral-deep); }

/* Commentator right-panel layout */
.tab-panel[data-panel="commentator"] { display: none; }
.tab-panel[data-panel="commentator"].active { display: flex; flex-direction: column; gap: 14px; }

/* Both the import-view and the study-view stack their children with a
   consistent gap so status / controls / insights / moves don't run into each
   other. `:not([hidden])` is used so the HTML `hidden` attribute correctly
   overrides our display:flex. */
.cm-import-view:not([hidden]),
.cm-study-view:not([hidden]) {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Left-panel player cards become editable in Commentator mode: name click
   switches to contenteditable, avatar click opens file picker. Photos replace
   the glyph via background-image. */
.player-card .avatar {
  background-size: cover; background-position: center;
}
.player-card .avatar.has-photo { color: transparent; }
.player-card.editable .avatar { cursor: pointer; }
.player-card.editable .avatar:hover { outline: 2px solid var(--sage); outline-offset: 2px; }
.player-card.editable .player-name {
  cursor: text;
  border-radius: 4px;
  padding: 1px 4px;
  margin: -1px -4px;
  transition: background var(--t-fast);
}
.player-card.editable .player-name:hover { background: var(--paper-2); }
.player-card .player-name.editing {
  background: var(--paper-1);
  outline: 2px solid var(--sage);
  outline-offset: 0;
}

/* Sample games grid */
.cm-samples { display: flex; flex-direction: column; gap: 6px; }
.cm-sample {
  text-align: left;
  padding: 10px 12px;
  border: 1px solid var(--paper-edge);
  border-radius: var(--r-md);
  background: var(--paper-0);
  cursor: pointer;
  transition: all var(--t-fast);
  font: inherit;
  color: var(--ink-0);
}
.cm-sample:hover {
  background: var(--sage-soft);
  border-color: var(--sage);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.cm-sample-title {
  font-family: 'Fraunces', serif;
  font-weight: 700;
  font-size: 13.5px;
  color: var(--ink-0);
  margin-bottom: 2px;
}
.cm-sample-byline { font-size: 11.5px; color: var(--ink-2); margin-bottom: 4px; }
.cm-sample-tag {
  display: inline-block;
  font-size: 10px;
  padding: 1px 7px;
  background: var(--paper-2);
  color: var(--ink-2);
  border-radius: 10px;
  letter-spacing: .02em;
}

.cm-section {
  padding: 10px 12px;
  background: var(--paper-1);
  border: 1px solid var(--paper-edge);
  border-radius: var(--r-md);
}
.cm-section > .section-title { margin-bottom: 8px; }
.cm-section > summary {
  cursor: pointer;
  list-style: none;
  font-family: 'Fraunces', serif;
  font-size: 13px; font-weight: 700;
  color: var(--ink-0);
  margin-bottom: 10px;
}
.cm-section > summary::-webkit-details-marker { display: none; }
.cm-section > summary::before {
  content: '›'; display: inline-block; margin-right: 8px;
  transition: transform var(--t-fast);
  color: var(--ink-2);
}
.cm-section[open] > summary::before { transform: rotate(90deg); }

#cm-import-text {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--paper-edge);
  border-radius: 10px;
  background: var(--paper-0);
  color: var(--ink-0);
  font: inherit;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11.5px;
  line-height: 1.5;
  resize: vertical;
  min-height: 90px;
  outline: none;
  transition: border-color var(--t-fast);
}
#cm-import-text:focus { border-color: var(--sage); }
.cm-import-actions {
  display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px;
}
.cm-import-actions .btn { padding: 6px 12px; font-size: 12px; }

.cm-nav-row {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 10px;
  background: var(--paper-1);
  border: 1px solid var(--paper-edge);
  border-radius: var(--r-md);
}
.cm-nav-row .icon-btn {
  flex: 1; padding: 6px 0;
  font-size: 15px;
  background: transparent; border: 1px solid transparent;
  cursor: pointer;
  color: var(--ink-1);
  border-radius: 6px;
  transition: all var(--t-fast);
}
.cm-nav-row .icon-btn:hover { background: var(--paper-2); color: var(--sage-deep); }
#cm-new-match {
  flex: 0 0 auto;
  padding: 4px 10px;
  color: var(--coral-deep);
  border-right: 1px solid var(--paper-edge);
  margin-right: 4px;
  border-radius: 4px 0 0 4px;
}
#cm-new-match:hover { background: var(--coral-soft); color: var(--coral-deep); }
#cm-nav-exit-var { flex: 0 0 auto; padding: 4px 10px; font-size: 11px; margin-left: 6px; }

/* Badge-visibility toggle (eye icon) — off by default, tinted sage when on */
.cm-badges-toggle {
  flex: 0 0 auto;
  margin-left: auto;
  color: var(--ink-3);
  border-radius: 6px;
}
.cm-badges-toggle svg { display: block; }
.cm-badges-toggle .cm-eye-open  { display: none; }
.cm-badges-toggle .cm-eye-slash { display: block; }
.cm-badges-toggle.active { color: var(--sage-deep); background: var(--sage-soft); }
.cm-badges-toggle.active .cm-eye-open  { display: block; }
.cm-badges-toggle.active .cm-eye-slash { display: none; }
.cm-badges-toggle:hover { color: var(--sage-deep); background: var(--paper-2); }

.cm-move-tree {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12px;
  line-height: 1.7;
  max-height: 260px;
  overflow-y: auto;
  padding: 4px 6px;
  color: var(--ink-1);
}
.cm-move-tree .mt-main { display: inline; }
.cm-move-tree .mt-variation {
  display: inline;
  font-size: 11px;
  color: var(--ink-2);
  background: var(--paper-2);
  padding: 1px 4px;
  border-radius: 4px;
}
.mt-num { color: var(--ink-3); margin-right: 2px; }
.mt-san {
  display: inline-block;
  padding: 0 5px;
  margin: 1px 1px;
  border-radius: 4px;
  cursor: pointer;
  color: var(--ink-0);
  transition: all var(--t-fast);
  font-weight: 600;
}
.mt-san:hover { background: var(--paper-2); }
.mt-san.active {
  background: var(--sage);
  color: var(--paper-1);
}
.mt-san.cls-blunder { color: var(--coral-deep); }
.mt-san.cls-mistake { color: var(--coral); }
.mt-san.cls-inaccuracy { color: var(--gold); }
.mt-san.cls-good { color: var(--sage-deep); }
.mt-san.cls-best { color: var(--sage-deep); font-weight: 700; }
.mt-san.active.cls-blunder,
.mt-san.active.cls-mistake,
.mt-san.active.cls-inaccuracy,
.mt-san.active.cls-good,
.mt-san.active.cls-best { color: var(--paper-1); }
.mt-cls {
  display: inline-block;
  margin-right: 3px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: -1px;
}
.mt-comment {
  color: var(--ink-2);
  font-style: italic;
  margin: 0 3px;
  font-size: 11px;
}
.mt-open, .mt-close { color: var(--ink-3); font-weight: 700; }

.cm-off-main { color: var(--coral); font-weight: 600; }

/* Collapsed move tree — keeps a streaming broadcaster from accidentally
   showing the next 20 moves on screen. Click the header to open. */
.cm-moves-details {
  border: 1px solid var(--paper-edge);
  border-radius: var(--r-md);
  background: var(--paper-1);
  overflow: hidden;
}
.cm-moves-details > summary {
  cursor: pointer;
  list-style: none;
  padding: 10px 12px;
  display: flex; align-items: center; gap: 10px;
  user-select: none;
  transition: background var(--t-fast);
}
.cm-moves-details > summary::-webkit-details-marker { display: none; }
.cm-moves-details > summary::before {
  content: '›';
  color: var(--ink-3);
  font-size: 16px; line-height: 1;
  transition: transform var(--t-fast);
}
.cm-moves-details[open] > summary::before { transform: rotate(90deg); }
.cm-moves-details > summary:hover { background: var(--paper-2); }
.cm-moves-details > summary > span:first-of-type {
  font-family: 'Fraunces', serif;
  font-weight: 700;
  font-size: 13px;
  color: var(--ink-0);
  letter-spacing: .02em;
}
.cm-moves-hint { margin-left: auto; font-style: italic; }
.cm-moves-details[open] .cm-moves-hint { display: none; }
.cm-moves-details .cm-move-tree { padding: 2px 10px 10px; }

/* ---------- Auto-analysis insights panel ---------- */
.cm-insights {
  display: flex; flex-direction: column; gap: 10px;
  padding: 12px 14px;
  border-radius: var(--r-md);
  background: var(--paper-1);
  border: 1px solid var(--paper-edge);
  box-shadow: var(--shadow-xs);
}
.cm-insight-empty {
  color: var(--ink-3);
  font-size: 12px;
  text-align: center;
  padding: 14px 0;
  font-style: italic;
}
.cm-insight-head {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--paper-2);
  border-left: 4px solid var(--ink-3);
}
.cm-insight-head.tone-good { background: var(--sage-soft); border-left-color: var(--sage); }
.cm-insight-head.tone-warn { background: var(--gold-soft); border-left-color: var(--gold); }
.cm-insight-head.tone-bad  { background: var(--coral-soft); border-left-color: var(--coral); }
.cm-insight-glyph {
  flex: 0 0 auto;
  width: 38px; height: 38px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Fraunces', serif; font-weight: 700;
  font-size: 18px;
  background: var(--paper-1);
  color: var(--ink-0);
  box-shadow: var(--shadow-xs);
}
.tone-good .cm-insight-glyph { color: var(--sage-deep); }
.tone-warn .cm-insight-glyph { color: var(--gold); }
.tone-bad  .cm-insight-glyph { color: var(--coral-deep); }
.cm-insight-title { min-width: 0; flex: 1; }
.cm-insight-label {
  font-family: 'Fraunces', serif;
  font-weight: 700; font-size: 15px;
  color: var(--ink-0);
  letter-spacing: .02em;
}
.cm-insight-sub {
  font-size: 12px; color: var(--ink-2);
  margin-top: 2px;
}
.cm-insight-sub b { color: var(--ink-0); font-family: 'JetBrains Mono', monospace; font-weight: 700; }

.cm-insight-body { display: flex; flex-direction: column; gap: 4px; font-size: 12px; }
.cm-insight-line { display: flex; justify-content: space-between; padding: 4px 2px; border-bottom: 1px dashed var(--paper-edge); }
.cm-insight-line:last-child { border-bottom: none; }
.cm-insight-k { color: var(--ink-2); }
.cm-insight-v { color: var(--ink-0); font-family: 'JetBrains Mono', monospace; font-weight: 700; }

.cm-insight-comment {
  font-size: 12.5px; line-height: 1.55;
  color: var(--ink-0);
  padding: 8px 10px;
  background: var(--paper-0);
  border-radius: 8px;
  border: 1px solid var(--paper-edge);
}
.cm-insight-comment b { color: var(--sage-deep); }
.cm-insight-pgn-comment {
  font-size: 12px; line-height: 1.5;
  color: var(--ink-2);
  font-style: italic;
  padding: 6px 10px;
  border-left: 2px solid var(--ink-4);
  background: var(--paper-0);
  border-radius: 4px;
}

/* ---------- Board classification badge (overlay SVG) ---------- */
.cm-insight-overlay {
  position: absolute; inset: 0; width: 100%; height: 100%;
  pointer-events: none; overflow: visible;
  z-index: 3;
}
.cm-badge circle {
  stroke: var(--paper-1);
  stroke-width: 0.035;
  filter: drop-shadow(0 1px 1.5px rgba(0,0,0,.35));
}
.cm-badge text {
  font-family: 'Fraunces', serif;
  font-weight: 700;
  font-size: 0.22px;
  fill: var(--paper-1);
  letter-spacing: -0.02px;
  pointer-events: none;
}
.cm-badge.tone-good circle { fill: var(--sage); }
.cm-badge.tone-warn circle { fill: var(--gold); }
.cm-badge.tone-bad  circle { fill: var(--coral); }

/* ---------- Board theme variations ---------- */
body.theme-royal    { --board-a: #f0d9b5; --board-b: #b58863; }
body.theme-midnight { --board-a: #dee3e6; --board-b: #8ca2ad; }
body.theme-emerald  { --board-a: #ebe1bf; --board-b: #6e8c52; }
body.theme-rose     { --board-a: #f1dadf; --board-b: #a14b6c; }
body.theme-ice      { --board-a: #e8f0f5; --board-b: #6794c9; }

/* ============================================================
   Responsive — tablet + mobile
   Breakpoints:
     ≤ 1059  tablet landscape / small desktop
     ≤ 767   phone landscape / tablet portrait
     ≤ 479   small phone portrait
   ============================================================ */

/* Touch-friendly behavior across all viewports */
.board { touch-action: manipulation; }        /* kill iOS double-tap zoom */
.draw-overlay { touch-action: none; }          /* no page scroll while drawing */
@media (hover: none) {
  /* Kill transform/background hover effects on touch devices so taps don't
     leave buttons "pressed" after release. :active still fires for feedback. */
  .btn:hover,
  .icon-btn:hover,
  .mode-card:hover,
  .lesson-card:hover,
  .category-card:hover,
  .theme-card:hover,
  .cm-sample:hover,
  .promo-choice:hover,
  .draw-swatch:hover,
  .draw-tool:hover { transform: none; }
}

/* iOS safe-area: only applied where it's needed without cover viewport */
.toast-wrap { right: max(22px, env(safe-area-inset-right, 0)); }

/* -------- Tablet landscape / small desktop: ≤ 1199 -------- */
@media (max-width: 1199px) {
  body { overflow: auto; }
  .topbar {
    display: grid;
    grid-template-columns: auto auto 1fr auto;
    align-items: center;
    gap: 12px;
    width: 100%;
    box-sizing: border-box;
  }
  .brand      { grid-column: 1; min-width: 0; }
  .nav-wrap   { grid-column: 2; }
  /* grid column 3 acts as an empty spacer that eats the remaining width */
  .top-actions { grid-column: 4; justify-self: end; margin: 0; }
  .layout {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    grid-template-areas: "board board" "left right";
    gap: 14px;
    padding: 14px;
    height: auto;
    min-height: calc(100vh - 64px);
    overflow: visible;
  }
  .board-area  { grid-area: board; }
  .panel-left  { grid-area: left; }
  .panel-right { grid-area: right; }
  .panel-left, .panel-right { max-height: none; overflow-y: auto; }

  /* Account for .layout padding (28) + .board-frame padding (32) + label gutter (~40)
     so the board never overflows its container on this breakpoint. */
  .board { --size: min(60vh, calc(100vw - 110px), 620px); }
  .board-frame { padding: 14px; max-width: 100%; box-sizing: border-box; }
  .board-area { max-width: 100%; overflow: hidden; }

  .game-banner { margin: 0 20px; padding: 22px 22px 18px; }
  .banner-title { font-size: 24px; }
}

/* -------- Phone landscape / tablet portrait: ≤ 767 -------- */
@media (max-width: 767px) {
  body { overflow: auto; }
  .brand { min-width: 0; gap: 10px; }
  .topbar { height: 60px; padding: 0 14px; gap: 8px; }
  .layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    grid-template-areas: "board" "left" "right";
    gap: 12px;
    padding: 12px;
    min-height: auto;
  }

  /* Subtract layout padding (24) + board-frame padding (20) + label gutter (~36) */
  .board { --size: min(75vh, calc(100vw - 80px), 520px); }
  .board-frame { padding: 10px; max-width: 100%; box-sizing: border-box; }
  .board-area  { max-width: 100%; overflow: hidden; }

  .panel { padding: 14px; }
  .panel-left, .panel-right { max-height: none; }
  .move-history { max-height: 32vh; }

  /* Nav becomes a dropdown (breadcrumb) on mobile */
  .nav-crumb { display: inline-flex; }
  .nav-tabs {
    display: none;
    position: absolute;
    top: calc(100% + 8px); left: 50%; transform: translateX(-50%);
    flex-direction: column;
    gap: 2px;
    padding: 6px;
    background: var(--paper-1);
    border: 1px solid var(--paper-edge);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    min-width: 180px;
    z-index: 20;
    animation: navDropIn 140ms cubic-bezier(.2,.8,.2,1);
  }
  .nav-wrap.open .nav-tabs { display: flex; }
  .tab {
    text-align: left;
    padding: 10px 14px;
    font-size: 14px;
    min-height: 42px;
    border-radius: 8px;
  }
  .tab.active {
    background: var(--sage-soft);
    color: var(--sage-deep);
    box-shadow: none;
  }
  @keyframes navDropIn {
    from { opacity: 0; transform: translateX(-50%) translateY(-6px); }
    to   { opacity: 1; transform: translateX(-50%) translateY(0);    }
  }

  /* Tap targets */
  .icon-btn { width: 44px; height: 44px; }

  /* Modals: full-width, body scrolls */
  .modal-backdrop { padding: 12px; place-items: start center; padding-top: 40px; }
  .modal { width: 100%; max-width: none; max-height: calc(100vh - 48px); }
  .modal-head { padding: 16px 18px; position: sticky; top: 0; background: var(--paper-1); z-index: 2; }
  .modal-body { padding: 16px 18px; }

  /* Promotion picker: larger tiles */
  .promo-choice { padding: 18px 8px; min-height: 80px; }
  .promo-choice .promo-glyph { font-size: 38px; }

  /* Commentator: draw toolbar wraps; nav row keeps buttons tappable */
  .cm-draw-toolbar { padding: 8px 10px; gap: 8px; }
  .cm-draw-toolbar .draw-tools { flex-wrap: wrap; }
  .draw-tool { flex: 0 0 auto; min-height: 38px; font-size: 11px; padding: 6px 8px; }
  .cm-nav-row .icon-btn { flex: 1; min-height: 40px; }

  /* Game banner */
  .game-banner { margin: 0 14px; padding: 20px 18px 16px; }
  .banner-title { font-size: 22px; }
  .banner-sub { font-size: 13px; }
  .banner-actions { flex-direction: column; width: 100%; }
  .banner-actions .btn { width: 100%; min-width: 0; }

  /* Hint card: compress */
  .hint-card { padding: 14px 16px; gap: 10px; }
  .hint-card .hint-icon { display: none; }
  .hint-move { font-size: 22px; }
  .hint-text { font-size: 12.5px; }

  /* Toast shifts below the top bar */
  .toast-wrap {
    top: calc(70px + env(safe-area-inset-top, 0));
    right: calc(10px + env(safe-area-inset-right, 0));
    left: calc(10px + env(safe-area-inset-left, 0));
  }
  .toast { max-width: none; }

  /* Coach chat log: cap height so input stays visible */
  .coach-chat { max-height: 45vh; }
  .cm-ask-log { max-height: 30vh; }

  /* Hide never-critical chrome */
  .streak, .xp-chip { display: none; }
}

/* -------- Small phone portrait: ≤ 479 -------- */
@media (max-width: 479px) {
  .topbar { height: 56px; padding: 0 12px; gap: 6px; }
  .brand { min-width: 0; gap: 10px; }
  .brand-crest { width: 38px; height: 38px; border-radius: 10px; }
  .brand-title { font-size: 16px; }
  .brand-sub { display: none; }
  .nav-tabs { padding: 3px; max-width: calc(100vw - 110px); }
  .tab { padding: 8px 12px; font-size: 12px; }
  .icon-btn { width: 42px; height: 42px; }

  .layout { padding: 8px; gap: 10px; }
  /* Layout padding (16) + frame padding (16) + label gutter (~28) = ~60px reserved */
  .board { --size: min(60vh, calc(100vw - 60px), 420px); }
  .board-frame { padding: 8px; max-width: 100%; box-sizing: border-box; }
  .board-with-ranks { gap: 4px; }

  .panel { padding: 12px; }
  .player-card { padding: 8px 10px; gap: 10px; grid-template-columns: 40px 1fr auto; }
  .avatar { width: 40px; height: 40px; font-size: 22px; }
  .player-name { font-size: 13px; }
  .player-meta { font-size: 10px; }
  .timer { font-size: 13px; padding: 5px 10px; }

  .move-history { font-size: 12px; line-height: 1.6; max-height: 26vh; padding: 8px; }

  .captured-row { min-height: 26px; font-size: 18px; padding: 4px 8px; }

  /* Modal — drop border radius, full width, scrollable */
  .modal-backdrop { padding: 0; padding-top: max(0px, env(safe-area-inset-top, 0)); }
  .modal { border-radius: 0; width: 100vw; max-height: 100vh; height: 100vh; }

  .modal-head { padding: 14px 16px; }
  .modal-head h2 { font-size: 18px; }
  .modal-body { padding: 14px 16px; }

  /* Promotion picker: 2×2 on really narrow */
  .promotion-choices { grid-template-columns: 1fr 1fr; gap: 10px; }
  .promo-choice { padding: 22px 10px; min-height: 90px; }

  /* Commentator compact */
  .cm-insight-head { padding: 8px 10px; gap: 10px; }
  .cm-insight-glyph { width: 32px; height: 32px; font-size: 15px; }
  .cm-insight-label { font-size: 13px; }
  .cm-insight-sub { font-size: 11px; }
  .cm-sample { padding: 10px; }
  .cm-sample-title { font-size: 13px; }
  .cm-sample-byline { font-size: 11px; }
  #cm-import-text { font-size: 12px; min-height: 80px; }
  .cm-players { grid-template-columns: 1fr; gap: 6px; }
  .cm-nav-row { gap: 4px; padding: 6px 8px; }

  /* Settings — theme swatches smaller */
  .theme-grid { gap: 6px; }

  /* Coach chat input row wraps */
  .coach-input { flex-wrap: wrap; }
}

/* -------- Landscape phones (short & wide): avoid vertical overflow -------- */
@media (max-width: 900px) and (max-height: 500px) and (orientation: landscape) {
  .layout {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    grid-template-areas: "board right"
                         "board left";
    min-height: calc(100vh - 52px);
  }
  .panel-left, .panel-right { max-height: 50vh; overflow-y: auto; }
  .board { --size: min(80vh, calc(50vw - 40px), 500px); }
  .topbar { height: 52px; }
}