/* Dinoage — a DOS-era cave. Chunky bevelled panels, pixel lettering, and the
   cave itself on a canvas. Colours for the chosen look arrive as custom
   properties from themes.js. */

:root {
  --bg: #0b0810;
  --bg-2: #16101c;
  --panel: #221a2a;
  --panel-2: #2c2236;
  --bevel-hi: #4a3d58;
  --bevel-lo: #07050a;
  --ink: #f1e8d4;
  --ink-soft: #a99db6;
  --line: rgba(255, 240, 220, 0.1);
  --accent: #5aa83a;
  --accent-hi: #8fd65a;
  --accent-lo: #2c5c1e;
  --accent-ink: #0d1a08;
  --gold: #f2c14e;
  --good: #8fd65a;
  --bad: #ff8a6a;
  --glow: none;
  --ease: cubic-bezier(0.3, 0.1, 0.2, 1);
  --spring: cubic-bezier(0.34, 1.45, 0.5, 1);
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color-scheme: dark;
}
:root[data-dark="0"] { color-scheme: light; }

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body {
  height: 100%;
  margin: 0;
  overflow: hidden;
  overscroll-behavior: none;
}

body {
  font-family: var(--sans);
  color: var(--ink);
  background: radial-gradient(120% 80% at 50% 0%, var(--bg-2), var(--bg) 70%);
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  -webkit-text-size-adjust: 100%;
  -webkit-touch-callout: none;
  transition: background 0.6s, color 0.4s;
}

.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
canvas.px { image-rendering: pixelated; image-rendering: crisp-edges; display: block; }

/* A faint ordered-dither veil over the page, like a 256-colour screen. */
.bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: repeating-conic-gradient(rgba(255, 255, 255, 0.035) 0 25%, transparent 0 50%);
  background-size: 4px 4px;
  opacity: 0.8;
}
:root[data-dark="0"] .bg { background-image: repeating-conic-gradient(rgba(90, 50, 10, 0.05) 0 25%, transparent 0 50%); }

/* -------------------------------------------------------------- layout */
.app {
  position: fixed;
  inset: 0;
  z-index: 1;
  display: flex;
  flex-direction: column;
  max-width: 820px;
  margin: 0 auto;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px 4px 14px;
  gap: 8px;
}
.brand {
  appearance: none;
  border: 0;
  background: none;
  color: inherit;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  cursor: pointer;
  border-radius: 4px;
}
.brand img { width: 38px; height: 38px; flex: 0 0 auto; filter: drop-shadow(0 2px 0 rgba(0, 0, 0, 0.35)); image-rendering: pixelated; }
.brand-text { display: flex; flex-direction: column; align-items: flex-start; gap: 3px; min-width: 0; }
.brand .logo { display: block; }
.brand small {
  font: 600 10px/1.35 var(--mono);
  color: var(--ink-soft);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  padding-left: 2px;
}
.menu { display: flex; gap: 4px; flex: 0 0 auto; }

/* The bevel: light from the top left, a dark rim, square corners. */
.icon-btn, .btn, .opt, .card, .tab, .stat, .sheet, .dialog, .toast, .stuck, .pw-input, .summary div, .result-stats div, .plaque {
  --b-hi: var(--bevel-hi);
  --b-lo: var(--bevel-lo);
}

.icon-btn {
  appearance: none;
  border: 0;
  background: var(--panel);
  color: var(--ink);
  width: 42px;
  height: 42px;
  border-radius: 3px;
  display: grid;
  place-items: center;
  cursor: pointer;
  box-shadow: inset 2px 2px 0 var(--b-hi), inset -2px -2px 0 rgba(0, 0, 0, 0.35), 0 0 0 2px var(--b-lo);
  transition: transform 0.12s var(--ease), background 0.2s;
}
.icon-btn:hover { background: var(--panel-2); }
.icon-btn:active { transform: translateY(1px); box-shadow: inset -2px -2px 0 var(--b-hi), inset 2px 2px 0 rgba(0, 0, 0, 0.35), 0 0 0 2px var(--b-lo); }
.icon-btn svg, .btn svg { width: 24px; height: 24px; fill: currentColor; stroke: none; shape-rendering: crispEdges; }

.stats {
  display: grid;
  grid-template-columns: 1fr 1.2fr 1.1fr 1fr;
  gap: 8px;
  padding: 8px 14px 8px;
}
.stat {
  background: color-mix(in oklab, var(--bg) 70%, var(--panel));
  border-radius: 3px;
  padding: 5px 6px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.1;
  min-width: 0;
  box-shadow: inset 2px 2px 0 rgba(0, 0, 0, 0.45), inset -2px -2px 0 color-mix(in oklab, var(--b-hi) 70%, transparent), 0 0 0 2px var(--b-lo);
}
.stat span { font: 600 9.5px/1.2 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-soft); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; }
.stat b { font: 700 19px/1.15 var(--mono); font-variant-numeric: tabular-nums; white-space: nowrap; margin-top: 2px; text-shadow: var(--glow); }
.stat b i { font-style: normal; }
.stat b small { font-size: 12px; font-weight: 600; color: var(--ink-soft); margin-left: 1px; }
.stat.low b { color: var(--bad); animation: tickle 1s steps(2) infinite; }
@keyframes tickle { 50% { opacity: 0.55; } }
.stat .life { width: 15px; height: 15px; fill: var(--bad); margin: 2px 1px 0; shape-rendering: crispEdges; }
.stat .life.off { fill: color-mix(in oklab, var(--ink) 18%, transparent); }
#st-4 { display: flex; align-items: center; justify-content: center; min-height: 22px; }

.stage {
  flex: 1;
  min-height: 0;
  position: relative;
  margin: 2px 14px 4px;
  border-radius: 4px;
  background: var(--bg);
  box-shadow: inset 2px 2px 0 rgba(0, 0, 0, 0.55), inset -2px -2px 0 color-mix(in oklab, var(--bevel-hi) 60%, transparent), 0 0 0 2px var(--bevel-lo);
  overflow: hidden;
}
.board {
  position: absolute;
  inset: 2px;
  width: calc(100% - 4px);
  height: calc(100% - 4px);
  display: block;
  touch-action: none;
  outline: none;
  cursor: pointer;
}
:root[data-theme="crt"] .stage { border-radius: 14px; box-shadow: inset 0 0 0 2px rgba(0, 0, 0, 0.6), 0 0 0 2px var(--bevel-lo), 0 0 22px rgba(80, 255, 190, 0.08); }
:root[data-theme="crt"] .board { border-radius: 12px; }

.stuck {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 12px;
  width: max-content;
  max-width: calc(100% - 24px);
  background: var(--panel);
  color: var(--ink);
  padding: 8px 8px 8px 14px;
  border-radius: 3px;
  font-size: 14px;
  line-height: 1.3;
  box-shadow: inset 2px 2px 0 var(--b-hi), inset -2px -2px 0 rgba(0, 0, 0, 0.35), 0 0 0 2px var(--b-lo), 0 8px 24px rgba(0, 0, 0, 0.35);
  animation: rise 0.3s var(--ease);
}

.actions {
  display: flex;
  gap: 8px;
  padding: 8px 14px 14px;
}
.btn {
  appearance: none;
  flex: 1;
  min-width: 0;
  border: 0;
  background: var(--panel);
  color: var(--ink);
  font: 600 14px var(--sans);
  padding: 10px 10px;
  min-height: 48px;
  border-radius: 3px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  box-shadow: inset 2px 2px 0 var(--b-hi), inset -2px -2px 0 rgba(0, 0, 0, 0.35), 0 0 0 2px var(--b-lo);
  transition: transform 0.12s var(--ease), background 0.2s, opacity 0.2s, color 0.2s;
  -webkit-user-select: none;
  user-select: none;
  touch-action: manipulation;
}
.btn svg { width: 20px; height: 20px; flex: 0 0 auto; }
.btn:hover { background: var(--panel-2); }
.btn:active { transform: translateY(1px); box-shadow: inset -2px -2px 0 var(--b-hi), inset 2px 2px 0 rgba(0, 0, 0, 0.35), 0 0 0 2px var(--b-lo); }
.btn:disabled { opacity: 0.38; cursor: default; transform: none; }
.btn.primary {
  background: var(--accent);
  color: var(--accent-ink);
  --b-hi: var(--accent-hi);
  box-shadow: inset 2px 2px 0 var(--accent-hi), inset -2px -2px 0 var(--accent-lo), 0 0 0 2px var(--b-lo);
}
.btn.primary:hover { background: color-mix(in oklab, var(--accent) 88%, white); }
.btn.primary:active { box-shadow: inset -2px -2px 0 var(--accent-hi), inset 2px 2px 0 var(--accent-lo), 0 0 0 2px var(--b-lo); }
.btn.primary.thinking { animation: breathe 0.8s steps(2) infinite; }
.btn.kin.on {
  background: color-mix(in oklab, #b04ab8 55%, var(--panel));
  color: #fff;
  box-shadow: inset 2px 2px 0 #e88ee8, inset -2px -2px 0 #4a1650, 0 0 0 2px var(--b-lo), 0 0 14px rgba(228, 110, 226, 0.45);
}
.btn.mini { flex: 0 0 auto; min-height: 38px; padding: 6px 14px; font-size: 13.5px; }
.btn.big { min-height: 54px; font-size: 16px; }
.btn.subtle { flex: 0 0 auto; color: var(--ink-soft); font-size: 13.5px; margin: 20px auto 0; display: flex; min-height: 40px; }
@keyframes breathe { 50% { opacity: 0.6; } }
#btn-next { animation: popc2 0.35s var(--spring); }
@keyframes popc2 { from { transform: scale(0.85); opacity: 0; } }
:root[data-theme="crt"] .btn span, :root[data-theme="crt"] .stat b, :root[data-theme="crt"] .brand small { text-shadow: var(--glow); }

/* -------------------------------------------------------- sheets, dialogs */
.backdrop {
  position: fixed;
  inset: 0;
  z-index: 20;
  background: rgba(4, 2, 8, 0.55);
  animation: fade 0.2s;
}
:root[data-dark="0"] .backdrop { background: rgba(60, 36, 16, 0.38); }
@keyframes fade { from { opacity: 0; } }

.sheet {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0 auto;
  z-index: 21;
  max-width: 560px;
  max-height: 88dvh;
  display: flex;
  flex-direction: column;
  background: var(--panel);
  color: var(--ink);
  border-radius: 4px 4px 0 0;
  box-shadow: inset 2px 2px 0 var(--b-hi), inset -2px 0 0 rgba(0, 0, 0, 0.35), 0 0 0 2px var(--b-lo), 0 -12px 40px rgba(0, 0, 0, 0.35);
  padding-bottom: env(safe-area-inset-bottom);
  animation: rise 0.28s var(--ease);
}
@keyframes rise { from { transform: translateY(32px); opacity: 0; } }
.sheet header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 12px 8px 20px;
  flex: 0 0 auto;
  border-bottom: 2px solid var(--b-lo);
  box-shadow: 0 2px 0 color-mix(in oklab, var(--b-hi) 50%, transparent);
  margin: 0 2px;
}
.sheet h2, .dialog h2 { margin: 0; font: 700 22px var(--mono); }
.px-title { display: flex; align-items: center; min-height: 26px; }
.px-title canvas { display: block; }
.dialog .px-title { justify-content: center; }
.sheet-body {
  overflow: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding: 12px 20px 26px;
  font-size: 15px;
  line-height: 1.55;
  -webkit-user-select: text;
  user-select: text;
}
.sheet-body h3 { font: 700 12px/1.3 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; margin: 22px 0 10px; color: var(--gold); }
.sheet-body h3:first-child { margin-top: 6px; }
.prose p { margin: 0 0 12px; }
.prose ul { margin: 0; padding-left: 20px; }
.prose li { margin: 5px 0; }
.legend { list-style: none; padding: 0 !important; display: grid; gap: 10px; }
.legend li { display: flex; gap: 14px; align-items: center; margin: 0 !important; }
.legend .tile-icon { flex: 0 0 auto; }
.muted { color: var(--ink-soft); }
.about { font-size: 13px; margin-top: 24px; text-align: center; }
.note { font-size: 13px; margin: 8px 2px 0; line-height: 1.45; }

@media (min-width: 700px) and (min-height: 560px) {
  .sheet {
    bottom: auto;
    top: 50%;
    transform: translateY(-50%);
    border-radius: 4px;
    max-height: 84dvh;
    box-shadow: inset 2px 2px 0 var(--b-hi), inset -2px -2px 0 rgba(0, 0, 0, 0.35), 0 0 0 2px var(--b-lo), 0 20px 60px rgba(0, 0, 0, 0.45);
    animation: pop 0.24s var(--ease);
  }
  .levels-sheet { max-width: 640px; }
}
@keyframes pop { from { opacity: 0; transform: translateY(-50%) scale(0.96); } }

.dialog {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 22;
  width: min(calc(100vw - 32px), 400px);
  max-height: calc(100dvh - 32px);
  overflow: auto;
  background: var(--panel);
  color: var(--ink);
  border-radius: 4px;
  padding: 24px 22px 20px;
  box-shadow: inset 2px 2px 0 var(--b-hi), inset -2px -2px 0 rgba(0, 0, 0, 0.35), 0 0 0 2px var(--b-lo), 0 20px 60px rgba(0, 0, 0, 0.45);
  text-align: center;
  animation: popc 0.26s var(--ease);
}
@keyframes popc { from { opacity: 0; transform: translate(-50%, -50%) scale(0.94); } }
.dialog p { margin: 10px 0 18px; color: var(--ink-soft); font-size: 15px; line-height: 1.5; }
.dialog .row { display: flex; gap: 10px; }
.result { padding-top: 18px; }
.stars { display: flex; justify-content: center; gap: 8px; margin-bottom: 10px; }
.stars svg { width: 34px; height: 34px; fill: color-mix(in oklab, var(--ink) 14%, transparent); shape-rendering: crispEdges; }
.stars svg.on { fill: var(--gold); filter: drop-shadow(0 2px 0 rgba(0, 0, 0, 0.4)); animation: star 0.45s var(--spring) both; animation-delay: var(--d); }
.stars svg:nth-child(2) { width: 42px; height: 42px; margin-top: -6px; }
@keyframes star { from { transform: scale(0.2); opacity: 0; } }
.result-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin: 4px 0 14px;
}
.result-stats div, .summary div {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: color-mix(in oklab, var(--bg) 60%, var(--panel));
  border-radius: 3px;
  padding: 7px 4px 8px;
  line-height: 1.2;
  min-width: 0;
  box-shadow: inset 2px 2px 0 rgba(0, 0, 0, 0.4), inset -2px -2px 0 color-mix(in oklab, var(--b-hi) 60%, transparent);
}
.result-stats span, .summary span { font: 600 9.5px/1.3 var(--mono); letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-soft); white-space: nowrap; max-width: 100%; overflow: hidden; text-overflow: ellipsis; }
.result-stats b, .summary b { font: 700 18px var(--mono); font-variant-numeric: tabular-nums; margin-top: 2px; }
.plaque {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  margin: 0 0 18px;
  padding: 10px 10px 12px;
  border-radius: 3px;
  background: color-mix(in oklab, var(--bg) 75%, var(--panel));
  box-shadow: inset 2px 2px 0 rgba(0, 0, 0, 0.45), inset -2px -2px 0 color-mix(in oklab, var(--b-hi) 60%, transparent), 0 0 0 2px var(--b-lo);
}
.plaque span { font: 600 10.5px/1.2 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-soft); }
.plaque .pw { display: block; }

/* ---------------------------------------------------------------- intro */
.intro {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: grid;
  place-items: center;
  padding: 24px 16px calc(24px + env(safe-area-inset-bottom));
  background:
    radial-gradient(90% 60% at 50% 100%, color-mix(in oklab, #c84a12 30%, transparent), transparent 70%),
    radial-gradient(120% 90% at 50% 0%, var(--bg-2), var(--bg) 75%);
  animation: fade 0.3s;
  overflow: auto;
}
:root[data-dark="0"] .intro { background: radial-gradient(90% 60% at 50% 100%, rgba(150, 70, 30, 0.25), transparent 70%), radial-gradient(120% 90% at 50% 0%, var(--bg), var(--bg-2) 80%); }
.intro::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-conic-gradient(rgba(255, 255, 255, 0.03) 0 25%, transparent 0 50%);
  background-size: 4px 4px;
  pointer-events: none;
}
.intro-card { position: relative; display: flex; flex-direction: column; align-items: center; gap: 16px; max-width: 420px; text-align: center; }
.intro-tag { margin: 0; font-size: 16px; line-height: 1.5; color: var(--ink-soft); max-width: 340px; }
.intro-actions { display: flex; flex-direction: column; gap: 12px; width: min(300px, 80vw); margin-top: 6px; }
.intro-actions .btn { flex: 0 0 auto; width: 100%; }
.intro-press { margin: 6px 0 0; animation: blink 1.1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* --------------------------------------------------------------- levels */
.mode-pick { margin-bottom: 14px; }
.pw-form {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 10px 10px 14px;
  margin: 4px 0 6px;
  border-radius: 3px;
  background: color-mix(in oklab, var(--bg) 60%, var(--panel));
  box-shadow: inset 2px 2px 0 rgba(0, 0, 0, 0.4), inset -2px -2px 0 color-mix(in oklab, var(--b-hi) 60%, transparent);
}
.pw-form label { font: 700 11px var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-soft); }
.pw-input {
  flex: 1;
  min-width: 0;
  width: 6ch;
  appearance: none;
  border: 0;
  border-radius: 3px;
  background: var(--bg);
  color: var(--gold);
  font: 700 22px/1 var(--mono);
  letter-spacing: 0.35em;
  text-transform: uppercase;
  padding: 8px 10px;
  text-align: center;
  box-shadow: inset 2px 2px 0 rgba(0, 0, 0, 0.5), 0 0 0 2px var(--b-lo);
  -webkit-user-select: text;
  user-select: text;
}
.pw-input::placeholder { color: color-mix(in oklab, var(--ink) 25%, transparent); }
.pw-input:focus { outline: 2px solid var(--accent-hi); outline-offset: 1px; }
.pw-form.bad { animation: shake 0.36s steps(6); }
@keyframes shake { 20% { transform: translateX(-4px); } 40% { transform: translateX(4px); } 60% { transform: translateX(-3px); } 80% { transform: translateX(3px); } }
.progress-line { font-size: 13px; margin: 10px 2px 4px; }
.chapter-title { display: flex; align-items: baseline; gap: 10px; }
.chapter-title .ch-num { color: var(--ink-soft); min-width: 2.2em; }
.chapter-title small { margin-left: auto; font: 600 11px var(--mono); color: var(--ink-soft); letter-spacing: 0.08em; }
.level-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
  gap: 10px;
}
.card {
  appearance: none;
  position: relative;
  border: 0;
  background: color-mix(in oklab, var(--bg) 45%, var(--panel));
  color: var(--ink);
  border-radius: 3px;
  padding: 8px 4px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  font: inherit;
  box-shadow: inset 2px 2px 0 var(--b-hi), inset -2px -2px 0 rgba(0, 0, 0, 0.35), 0 0 0 2px var(--b-lo);
  transition: transform 0.12s var(--ease);
}
.card:active { transform: translateY(1px); }
.card canvas { height: 46px; width: auto; max-width: 60px; object-fit: contain; image-rendering: pixelated; }
.card .row1 { display: flex; align-items: center; gap: 5px; line-height: 1.1; }
.card .num { font: 700 14px var(--mono); }
.card .par, .card .best { font: 600 10.5px/1.2 var(--mono); color: var(--ink-soft); font-variant-numeric: tabular-nums; white-space: nowrap; }
.card.solved { background: color-mix(in oklab, var(--good) 12%, color-mix(in oklab, var(--bg) 45%, var(--panel))); }
.card.perfect .best { color: var(--good); }
.card .best { color: var(--ink); }
.card.current { box-shadow: inset 2px 2px 0 var(--b-hi), inset -2px -2px 0 rgba(0, 0, 0, 0.35), 0 0 0 2px var(--gold); }
.card.locked { opacity: 0.5; }
.card.locked canvas { filter: grayscale(1) brightness(0.6); }
.card.nope { animation: shake 0.36s steps(6); }
.card.started::after { content: ""; position: absolute; top: 6px; right: 6px; width: 6px; height: 6px; background: var(--gold); }
.mini-stars { display: flex; gap: 1px; }
.mini-stars svg { width: 11px; height: 11px; fill: color-mix(in oklab, var(--ink) 18%, transparent); shape-rendering: crispEdges; }
.mini-stars svg.on { fill: var(--gold); }
.card svg.lock { width: 12px; height: 12px; fill: var(--ink-soft); shape-rendering: crispEdges; }

/* ------------------------------------------------------------- results */
.summary { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 6px; }
.bars { display: grid; gap: 9px; }
.bar { display: grid; grid-template-columns: minmax(96px, 9.5em) 1fr 40px; align-items: center; gap: 10px; font-size: 13.5px; }
.bar span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bar i { height: 10px; background: var(--bg); display: block; box-shadow: inset 1px 1px 0 rgba(0, 0, 0, 0.5); }
.bar b { display: block; height: 100%; width: var(--p); background: repeating-linear-gradient(90deg, var(--accent-hi) 0 4px, var(--accent) 4px 8px); }
.bar small { text-align: right; color: var(--ink-soft); font: 600 12px var(--mono); }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; font-variant-numeric: tabular-nums; }
th { text-align: left; font: 600 10px var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-soft); padding: 4px; border-bottom: 2px solid var(--line); }
td { padding: 7px 4px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th.moves, th.time, th.score, td.moves, td.time, td.score { text-align: right; }
td.score { font: 700 14px var(--mono); }
tr.perfect td.moves { color: var(--good); font-weight: 700; }

/* ------------------------------------------------------------- settings */
.opts { display: flex; flex-wrap: wrap; gap: 10px; }
.opt {
  appearance: none;
  border: 0;
  background: color-mix(in oklab, var(--bg) 40%, var(--panel));
  color: var(--ink);
  font: 600 14px var(--sans);
  padding: 8px 14px 8px 10px;
  min-height: 44px;
  border-radius: 3px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  cursor: pointer;
  box-shadow: inset 2px 2px 0 var(--b-hi), inset -2px -2px 0 rgba(0, 0, 0, 0.35), 0 0 0 2px var(--b-lo);
}
.opt:active { transform: translateY(1px); }
.opt[aria-checked="true"] { box-shadow: inset 2px 2px 0 var(--b-hi), inset -2px -2px 0 rgba(0, 0, 0, 0.35), 0 0 0 2px var(--gold); background: var(--panel-2); }
.opts.lang .opt, .opts.mode .opt { padding-left: 14px; min-width: 100px; justify-content: center; }
.swatch { display: inline-block; width: 26px; height: 26px; flex: 0 0 auto; box-shadow: 0 0 0 2px var(--b-lo); image-rendering: pixelated; }
.sw-vga { background: linear-gradient(180deg, #867b6d 0 45%, #4a4239 45% 62%, #130914 62% 82%, #c8460e 82%); }
.sw-sand { background: linear-gradient(180deg, #d6ad78 0 45%, #94643a 45% 62%, #e6b47e 62% 82%, #b86a40 82%); }
.sw-crt { background: repeating-linear-gradient(180deg, rgba(0, 0, 0, 0.35) 0 1px, transparent 1px 3px), linear-gradient(180deg, #867b6d 0 45%, #4a4239 45% 62%, #0a1220 62%); }
.sw-auto { background: linear-gradient(135deg, #d6ad78 0 50%, #867b6d 50% 70%, #130914 70%); }
.toggle { display: flex; align-items: center; gap: 12px; margin-top: 22px; cursor: pointer; font-size: 15px; line-height: 1.35; min-height: 32px; }
.toggle input { position: absolute; opacity: 0; width: 0; height: 0; }
.toggle .track { flex: 0 0 auto; width: 48px; height: 26px; background: var(--bg); position: relative; box-shadow: inset 2px 2px 0 rgba(0, 0, 0, 0.5), 0 0 0 2px var(--b-lo); }
.toggle .track::after { content: ""; position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; background: var(--ink-soft); box-shadow: inset -2px -2px 0 rgba(0, 0, 0, 0.3); transition: transform 0.2s steps(4); }
.toggle input:checked + .track { background: var(--accent-lo); }
.toggle input:checked + .track::after { transform: translateX(22px); background: var(--accent-hi); }
.toggle input:focus-visible + .track { outline: 2px solid var(--accent-hi); outline-offset: 2px; }

/* ---------------------------------------------------------------- toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: calc(86px + env(safe-area-inset-bottom));
  transform: translateX(-50%) translateY(8px);
  z-index: 15;
  background: var(--panel);
  color: var(--ink);
  padding: 10px 16px;
  border-radius: 3px;
  font-size: 14px;
  line-height: 1.4;
  width: max-content;
  max-width: min(calc(100vw - 32px), 420px);
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s var(--ease);
  box-shadow: inset 2px 2px 0 var(--b-hi), inset -2px -2px 0 rgba(0, 0, 0, 0.35), 0 0 0 2px var(--b-lo), 0 8px 24px rgba(0, 0, 0, 0.35);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
.board:focus-visible { outline: none; }

/* ------------------------------------------------------- small screens */
@media (max-height: 660px) {
  .top { padding-top: 6px; }
  .brand small { display: none; }
  .stats { padding-top: 4px; padding-bottom: 6px; }
  .stat b { font-size: 16px; }
  .actions { padding-bottom: 10px; }
  .btn { min-height: 44px; padding: 6px 8px; }
}
@media (max-width: 560px) {
  .actions .btn { flex-direction: column; gap: 3px; padding: 7px 2px 6px; font-size: 11.5px; letter-spacing: 0.01em; }
  .actions .btn span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; }
  .actions .btn svg { width: 22px; height: 22px; }
  .actions { gap: 7px; }
  .stats { gap: 7px; }
}
@media (max-width: 389px) {
  .top { padding: 8px 8px 4px 10px; gap: 6px; }
  .brand { gap: 8px; }
  .brand img { width: 32px; height: 32px; }
  .menu { gap: 4px; }
  .icon-btn { width: 40px; height: 40px; }
  .stats { padding-left: 10px; padding-right: 10px; gap: 6px; }
  .stat span { font-size: 8.5px; letter-spacing: 0.08em; }
  .stat b { font-size: 17px; }
  .stage { margin-left: 10px; margin-right: 10px; }
  .actions { padding-left: 10px; padding-right: 10px; gap: 6px; }
  .actions .btn { font-size: 10.5px; }
}
/* Landscape phones: stats and actions move to the sides of the cave. */
@media (orientation: landscape) and (max-height: 500px) {
  .app { display: grid; grid-template-columns: 184px 1fr 150px; grid-template-rows: auto 1fr; max-width: none; }
  .top { grid-column: 1; grid-row: 1; flex-direction: column; align-items: flex-start; gap: 8px; padding: 8px 8px 4px 14px; }
  .stats { grid-column: 1; grid-row: 2; grid-template-columns: 1fr 1fr; align-content: start; padding: 4px 8px 10px 14px; }
  .stage { grid-column: 2; grid-row: 1 / 3; margin: 8px 6px; }
  .actions { grid-column: 3; grid-row: 1 / 3; flex-direction: column; justify-content: center; padding: 8px 14px 8px 6px; }
  .actions .btn { flex: 0 0 auto; flex-direction: row; font-size: 13px; min-height: 42px; }
  .toast { bottom: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .sheet, .dialog, .backdrop, .stars svg.on, #btn-next, .stuck, .intro, .intro-press { animation: none; }
  .stat.low b { animation: none; }
}