/* filepath: games/klotski/css/style.css */
/* 华容道 Klotski — 经典中国风：墨底 · 朱红 · 鎏金 */

:root {
  --ink-900: #100d0b;
  --ink-800: #17130f;
  --ink-700: #221b15;
  --ink-600: #2e251d;
  --line: rgba(212, 162, 76, 0.22);
  --line-strong: rgba(212, 162, 76, 0.45);

  --gold: #d4a24c;
  --gold-soft: #e8c37a;
  --red: #c3272b;
  --red-soft: #d9524b;
  --paper: #f2e8d5;
  --text: #f4ece0;
  --muted: #a79a86;
  --good: #6fbf8b;
  --warn: #e0a44c;
  --bad: #d9685f;

  --radius: 14px;
  --radius-sm: 10px;
  --shadow-1: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-2: 0 18px 48px rgba(0, 0, 0, 0.55);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;

  --dur: 220ms;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1200px 700px at 50% -10%, #241c16 0%, rgba(36, 28, 22, 0) 60%),
    radial-gradient(900px 600px at 100% 100%, #1d2a26 0%, rgba(29, 42, 38, 0) 55%),
    var(--ink-900);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overscroll-behavior: none;
}

button { font-family: inherit; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------------- 布局 ---------------- */

#app {
  min-height: 100%;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: max(10px, env(safe-area-inset-top)) 12px max(12px, env(safe-area-inset-bottom));
}

#topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.brand {
  flex: 1 1 auto;
  min-width: 0;
  text-align: center;
}

#game-title {
  margin: 0;
  font-size: clamp(17px, 4.6vw, 22px);
  letter-spacing: 0.22em;
  font-weight: 700;
  color: var(--gold-soft);
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.6);
}

#game-sub {
  margin: 2px 0 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
  text-transform: uppercase;
}

.top-actions {
  display: flex;
  gap: 8px;
  flex: 0 0 auto;
}

.home-link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 36px;
  padding: 6px 12px 6px 9px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-size: 12px;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.home-link:hover,
.home-link:focus-visible {
  color: var(--gold-soft);
  border-color: var(--line-strong);
  transform: translateX(-2px);
}

.home-arrow { font-size: 14px; line-height: 1; }

.icon-btn {
  min-width: 40px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.icon-btn svg {
  width: 19px;
  height: 19px;
  fill: currentColor;
}

.icon-btn:hover,
.icon-btn:focus-visible {
  border-color: var(--line-strong);
  color: var(--gold-soft);
}

.icon-btn[aria-pressed="false"] { color: var(--muted); }

/* ---------------- HUD ---------------- */

#stage {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 0;
}

#hud {
  flex: 0 0 auto;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 7px 4px 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.012));
}

.stat-val {
  font-size: clamp(16px, 4.4vw, 20px);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
  color: var(--paper);
}

.stat-val.bump { animation: bump 260ms var(--ease); }

.stat-key {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

#level-badge {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
  min-height: 20px;
}

#level-name {
  color: var(--gold-soft);
  letter-spacing: 0.12em;
  font-weight: 600;
}

#level-badge .diff {
  padding: 2px 9px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: 0.08em;
}

#level-badge .diff[data-d="easy"] { color: var(--good); border-color: rgba(111, 191, 139, 0.4); }
#level-badge .diff[data-d="normal"] { color: var(--gold-soft); }
#level-badge .diff[data-d="hard"] { color: var(--warn); border-color: rgba(224, 164, 76, 0.4); }
#level-badge .diff[data-d="expert"] { color: var(--bad); border-color: rgba(217, 104, 95, 0.45); }

/* ---------------- 棋盘 ---------------- */

#board-wrap {
  position: relative;
  flex: 1 1 auto;
  min-height: 180px;
  width: 100%;
  max-width: 520px;
  margin: 0 auto;
}

#board {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  border-radius: var(--radius);
  outline: none;
}

#board:focus-visible {
  box-shadow: 0 0 0 2px var(--gold);
}

#toast {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translate(-50%, 8px);
  max-width: 86%;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(16, 13, 11, 0.92);
  border: 1px solid var(--line);
  color: var(--text);
  font-size: 13px;
  letter-spacing: 0.04em;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

#toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

#toast[data-tone="good"] { border-color: rgba(111, 191, 139, 0.6); color: var(--good); }
#toast[data-tone="warn"] { border-color: rgba(224, 164, 76, 0.6); color: var(--warn); }
#toast[data-tone="bad"] { border-color: rgba(217, 104, 95, 0.6); color: var(--bad); }

/* ---------------- 工具栏 ---------------- */

#toolbar {
  flex: 0 0 auto;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 6px;
  max-width: 520px;
  width: 100%;
  margin: 0 auto;
}

.tool-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  min-height: 52px;
  padding: 6px 2px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015));
  color: var(--text);
  font-size: 11px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: transform 140ms var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.tool-btn svg {
  width: 20px;
  height: 20px;
  fill: none;
}

.tool-btn:hover:not(:disabled),
.tool-btn:focus-visible:not(:disabled) {
  border-color: var(--line-strong);
  color: var(--gold-soft);
}

.tool-btn:active:not(:disabled) { transform: scale(0.96); }

.tool-btn:disabled {
  opacity: 0.38;
  cursor: default;
}

/* ---------------- 弹层 ---------------- */

.overlay {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  background: rgba(9, 7, 6, 0.74);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  animation: fade 200ms var(--ease);
}

.overlay[hidden] { display: none; }

.panel {
  width: 100%;
  max-width: 400px;
  max-height: 100%;
  overflow-y: auto;
  padding: 22px 20px 18px;
  border-radius: 18px;
  border: 1px solid var(--line-strong);
  background:
    radial-gradient(520px 260px at 50% -20%, rgba(212, 162, 76, 0.14), rgba(212, 162, 76, 0) 70%),
    linear-gradient(180deg, #241d17, #191410);
  box-shadow: var(--shadow-2);
  text-align: center;
  animation: rise 260ms var(--ease);
}

.panel h2 {
  margin: 0 0 6px;
  font-size: 21px;
  letter-spacing: 0.16em;
  color: var(--gold-soft);
}

.panel-desc {
  margin: 0 0 16px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

.panel-actions {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-top: 16px;
}

.primary-btn,
.ghost-btn {
  min-height: 46px;
  padding: 0 18px;
  border-radius: 12px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: transform 140ms var(--ease), filter var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.primary-btn {
  border: 1px solid rgba(232, 195, 122, 0.5);
  background: linear-gradient(180deg, var(--red-soft), var(--red));
  color: #fff5e6;
  box-shadow: 0 8px 22px rgba(195, 39, 43, 0.32);
}

.ghost-btn {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.035);
  color: var(--text);
}

.primary-btn:hover,
.ghost-btn:hover,
.primary-btn:focus-visible,
.ghost-btn:focus-visible { filter: brightness(1.1); border-color: var(--line-strong); }

.primary-btn:active,
.ghost-btn:active { transform: scale(0.985); }

/* 结算 */

.win-panel .stars {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: 6px 0 10px;
}

.stars .star {
  font-size: 30px;
  line-height: 1;
  color: rgba(255, 255, 255, 0.16);
  transition: color 320ms var(--ease), transform 320ms var(--ease);
}

.stars .star.on {
  color: var(--gold-soft);
  text-shadow: 0 0 16px rgba(232, 195, 122, 0.55);
  transform: scale(1.12);
}

.win-flag {
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--good);
}

.win-flag[hidden] { display: none; }

.win-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 12px 0 8px;
}

.win-grid > div {
  padding: 9px 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.win-grid dt {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.win-grid dd {
  margin: 3px 0 0;
  font-size: 18px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--paper);
}

.win-best {
  margin: 6px 0 0;
  font-size: 12.5px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

/* 选关 */

.levels-panel { max-width: 460px; }

.levels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(94px, 1fr));
  gap: 9px;
  margin-top: 4px;
}

.level-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  min-height: 84px;
  padding: 9px 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015));
  color: var(--text);
  cursor: pointer;
  transition: transform 140ms var(--ease), border-color var(--dur) var(--ease);
}

.level-card:hover:not(:disabled),
.level-card:focus-visible:not(:disabled) { border-color: var(--line-strong); transform: translateY(-2px); }

.level-card:disabled {
  opacity: 0.42;
  cursor: default;
}

.level-card .lv-no {
  font-size: 17px;
  font-weight: 700;
  color: var(--gold-soft);
  font-variant-numeric: tabular-nums;
}

.level-card .lv-name {
  font-size: 11.5px;
  color: var(--text);
  text-align: center;
  line-height: 1.3;
}

.level-card .lv-meta {
  font-size: 10.5px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.level-card .lv-stars {
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--gold-soft);
}

.level-card[data-state="cleared"] { border-color: rgba(212, 162, 76, 0.5); }
.level-card[data-state="current"] { border-color: var(--gold); box-shadow: 0 0 0 1px rgba(212, 162, 76, 0.4) inset; }

/* 玩法说明 */

.help-panel { max-width: 480px; text-align: left; }
.help-panel h2 { text-align: center; }

.help-body {
  max-height: min(56vh, 420px);
  overflow-y: auto;
  padding-right: 4px;
  font-size: 13.5px;
  line-height: 1.8;
  color: #ded2c0;
}

.help-body h3 {
  margin: 14px 0 4px;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--gold-soft);
}

.help-body h3:first-child { margin-top: 0; }
.help-body p { margin: 0; }
.help-body ul { margin: 0; padding-left: 20px; }
.help-body li { margin: 3px 0; }

/* ---------------- 动画 ---------------- */

@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes rise { from { opacity: 0; transform: translateY(14px) scale(0.98); } to { opacity: 1; transform: none; } }
@keyframes bump { 0% { transform: none; } 35% { transform: translateY(-4px) scale(1.14); } 100% { transform: none; } }
@keyframes drift {
  from { transform: translate3d(-1.5%, -1%, 0) scale(1); }
  to { transform: translate3d(1.5%, 1.5%, 0) scale(1.06); }
}

/* ---------------- 适配 ---------------- */

@media (max-width: 480px) {
  #app { padding-left: 10px; padding-right: 10px; gap: 6px; }
  #hud { gap: 6px; }
  .stat { padding: 6px 2px 5px; }
  #toolbar { gap: 5px; }
  .tool-btn { min-height: 48px; font-size: 10.5px; }
  .tool-btn svg { width: 18px; height: 18px; }
  .panel { padding: 18px 16px 14px; }
  .levels-grid { grid-template-columns: repeat(auto-fill, minmax(86px, 1fr)); }
}

@media (max-width: 390px) {
  #game-title { letter-spacing: 0.14em; }
  #game-sub { display: none; }
  .home-link { padding: 6px 9px 6px 7px; font-size: 11px; }
  .tool-btn { font-size: 10px; }
}

@media (max-height: 620px) {
  #level-badge { display: none; }
  .tool-btn { min-height: 44px; }
  #board-wrap { min-height: 140px; }
}

@media (orientation: landscape) and (max-height: 520px) {
  #app { flex-direction: row; align-items: stretch; gap: 10px; }
  #topbar { flex-direction: column; align-self: flex-start; }
  .brand { text-align: left; }
  #stage { flex: 1 1 auto; }
  #board-wrap { max-width: none; }
}

/* ---------------- 桌面端：双栏「帅帐」布局 ---------------- */

@media (min-width: 900px) and (min-height: 560px) {
  /* 背景氛围：朱红 / 鎏金双光晕缓慢漂移，给静态页面一点"活气" */
  body::before {
    content: "";
    position: fixed;
    inset: -14%;
    z-index: -1;
    pointer-events: none;
    background:
      radial-gradient(560px 440px at 16% 10%, rgba(195, 39, 43, 0.17), rgba(195, 39, 43, 0) 70%),
      radial-gradient(660px 500px at 88% 84%, rgba(212, 162, 76, 0.15), rgba(212, 162, 76, 0) 72%);
    animation: drift 26s ease-in-out infinite alternate;
  }

  #app {
    max-width: 1120px;
    margin: 0 auto;
    gap: 14px;
    padding: 18px 22px 22px;
  }

  #topbar { gap: 16px; }

  #game-title {
    font-size: 26px;
    letter-spacing: 0.3em;
    text-shadow: 0 1px 0 rgba(0, 0, 0, 0.7), 0 0 22px rgba(232, 195, 122, 0.22);
  }

  #game-sub { font-size: 12px; letter-spacing: 0.24em; }

  /* 标题做成"匾额"：左右两侧鎏金饰线 */
  .brand {
    flex: 0 1 auto;
    margin: 0 auto;
    position: relative;
    padding: 0 56px;
  }

  .brand::before,
  .brand::after {
    content: "";
    position: absolute;
    top: 50%;
    width: 46px;
    height: 1px;
  }

  .brand::before { left: 0; background: linear-gradient(90deg, rgba(212, 162, 76, 0), var(--line-strong)); }
  .brand::after { right: 0; background: linear-gradient(90deg, var(--line-strong), rgba(212, 162, 76, 0)); }

  /* 左：棋盘（通栏占满高度）  右：HUD / 关卡匾 / 暗纹 / 操作台 */
  #stage {
    display: grid;
    grid-template-columns: minmax(0, 1fr) clamp(268px, 24vw, 330px);
    grid-template-rows: auto auto minmax(48px, 1fr) auto;
    grid-template-areas:
      "board hud"
      "board badge"
      "board pad"
      "board tools";
    gap: 12px;
    align-items: start;
  }

  /* 装饰性留白：回纹暗纹底 + 鎏金分隔感 */
  #stage::before {
    content: "";
    grid-area: pad;
    align-self: stretch;
    min-height: 48px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background:
      repeating-linear-gradient(90deg, rgba(212, 162, 76, 0.10) 0 1px, rgba(212, 162, 76, 0) 1px 9px),
      repeating-linear-gradient(0deg, rgba(212, 162, 76, 0.08) 0 1px, rgba(212, 162, 76, 0) 1px 9px),
      radial-gradient(120% 80% at 50% 0%, rgba(212, 162, 76, 0.11), rgba(212, 162, 76, 0) 70%);
  }

  /* 棋盘：解除 520px 枷锁。宽度按"可用高度 × 0.8"反算，
     配合 4:5 比例正好贴合 canvas 实际绘制的棋盘（含 6px 外框），不会出现框与盘错位 */
  #board-wrap {
    grid-area: board;
    flex: 0 0 auto;
    width: min(100%, calc((100dvh - 120px) * 0.8));
    max-width: 100%;
    height: auto;
    aspect-ratio: 4 / 5;
    margin: 0 auto;
    align-self: center;
    justify-self: center;
    border-radius: 18px;
    box-shadow: 0 26px 64px rgba(0, 0, 0, 0.5);
  }

  /* 外圈细金线：与 canvas 自带的鎏金描边形成"双框装裱" */
  #board-wrap::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
    border: 1px solid rgba(212, 162, 76, 0.3);
    border-radius: 18px;
  }

  #toast { z-index: 3; font-size: 14px; }

  /* HUD：2×2 牌卡 + 对角回纹 */
  #hud {
    grid-area: hud;
    align-self: stretch;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .stat {
    position: relative;
    padding: 12px 8px 11px;
    border-color: var(--line-strong);
    background: linear-gradient(180deg, rgba(212, 162, 76, 0.12), rgba(255, 255, 255, 0.02));
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), 0 6px 18px rgba(0, 0, 0, 0.32);
  }

  .stat::before,
  .stat::after {
    content: "";
    position: absolute;
    width: 11px;
    height: 11px;
    pointer-events: none;
    opacity: 0.45;
  }

  .stat::before {
    top: 5px;
    left: 5px;
    border-top: 1.5px solid var(--gold-soft);
    border-left: 1.5px solid var(--gold-soft);
    border-top-left-radius: 3px;
  }

  .stat::after {
    bottom: 5px;
    right: 5px;
    border-bottom: 1.5px solid var(--gold-soft);
    border-right: 1.5px solid var(--gold-soft);
    border-bottom-right-radius: 3px;
  }

  .stat-val { font-size: 24px; }
  .stat-key { font-size: 11px; letter-spacing: 0.16em; }

  /* 关卡匾额 */
  #level-badge {
    grid-area: badge;
    align-self: stretch;
    flex-direction: column;
    gap: 6px;
    padding: 12px 14px;
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    background: radial-gradient(120% 130% at 50% 0%, rgba(195, 39, 43, 0.26), rgba(255, 255, 255, 0.02) 72%);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05), 0 8px 20px rgba(0, 0, 0, 0.3);
  }

  #level-name { font-size: 18px; letter-spacing: 0.2em; }
  #level-badge .diff { padding: 3px 12px; font-size: 11px; }

  /* 操作台：两列键位 */
  #toolbar {
    grid-area: tools;
    align-self: stretch;
    max-width: none;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .tool-btn {
    flex-direction: row;
    justify-content: flex-start;
    gap: 9px;
    min-height: 48px;
    padding: 8px 12px;
    font-size: 13px;
    border-color: var(--line-strong);
    background: linear-gradient(180deg, rgba(212, 162, 76, 0.10), rgba(255, 255, 255, 0.02));
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05), 0 5px 14px rgba(0, 0, 0, 0.28);
  }

  .tool-btn svg { width: 22px; height: 22px; }

  .tool-btn:hover:not(:disabled),
  .tool-btn:focus-visible:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.09), 0 10px 22px rgba(0, 0, 0, 0.38);
  }

  #btn-help { grid-column: 1 / -1; justify-content: center; }

  /* 弹层：50 关需要更宽的网格 */
  .panel { max-width: 440px; padding: 26px 24px 20px; }
  .panel h2 { font-size: 24px; }
  .levels-panel { max-width: 780px; }
  .levels-grid { grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); gap: 10px; }
  .level-card { min-height: 92px; }
  .help-panel { max-width: 600px; }
  .help-body { max-height: min(60vh, 520px); }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .tool-btn:active,
  .primary-btn:active,
  .ghost-btn:active,
  .home-link:hover { transform: none; }
}

/* ---------------- noscript ---------------- */

.noscript {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 24px;
  background: var(--ink-900);
  color: var(--paper);
  text-align: center;
  z-index: 99;
}