/* 叠叠乐 · 老木匠工作台视窗（暖琥珀书房 + 橡木台面 + 粉笔黑板 + 木质工具槽）
   铁律：禁四角散落浮动按钮；高亮一律用无边界径向柔光，不用硬边描边圈；
   移动端底部必须预留广告安全避让区；动效在 prefers-reduced-motion 下降级。 */

:root {
  --oak-deep: #1d1109;
  --oak: #452a19;
  --oak-mid: #5c3a22;
  --oak-light: #7c5029;
  --amber: #ffbe74;
  --amber-warm: #ffd6a2;
  --amber-glow: rgba(255, 190, 116, 0.22);
  --chalk: #efece0;
  --board: #22302a;
  --board-edge: #14201b;
  --walnut: #8a5a34;
  --danger-hot: #ff7a4d;
  --ui-text: #f4e6d4;
  --ui-dim: #bd9f80;
  --radius: 14px;
  --shadow-deep: 0 22px 46px rgba(0, 0, 0, 0.55);
}

* {
  box-sizing: border-box;
}

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

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ui-text);
  background:
    radial-gradient(1200px 620px at 50% -10%, rgba(255, 190, 116, 0.22), transparent 62%),
    radial-gradient(900px 520px at 12% 108%, rgba(255, 140, 60, 0.12), transparent 60%),
    linear-gradient(168deg, #291809 0%, #1b1008 48%, #120a05 100%);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* 橡木台面的木纹：重复的深色条纹，叠一层暖光，避免死黑平铺 */
#bench {
  min-height: 100vh;
  padding: 14px clamp(10px, 2.4vw, 30px) 24px;
  /* 广告位安全避让区（强制红线）：底部绝不留贴底关键按键 */
  padding-bottom: max(68px, calc(16px + env(safe-area-inset-bottom)));
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 1180px;
  margin: 0 auto;
}

#marquee {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--oak-mid), var(--oak) 62%, var(--oak-deep));
  border: 1px solid rgba(255, 190, 116, 0.16);
  box-shadow: inset 0 1px 0 rgba(255, 214, 162, 0.18), var(--shadow-deep);
}

#stage-title {
  margin: 0;
  font-size: clamp(17px, 2.4vw, 23px);
  letter-spacing: 0.16em;
  text-shadow: 0 2px 0 rgba(0, 0, 0, 0.45);
}

#back-home {
  color: var(--ui-text);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 10px;
  background: rgba(255, 190, 116, 0.1);
  border: 1px solid rgba(255, 190, 116, 0.2);
  font-size: 13px;
  transition: transform 0.14s ease, background 0.2s ease;
}

#back-home:hover {
  background: rgba(255, 190, 116, 0.2);
}

#back-home:active {
  transform: translateY(2px);
}

.marquee-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.mode-btn,
.bar-btn {
  font: inherit;
  font-size: 13px;
  color: var(--ui-dim);
  background: linear-gradient(180deg, rgba(255, 214, 162, 0.12), rgba(0, 0, 0, 0.3));
  border: 1px solid rgba(255, 190, 116, 0.16);
  border-radius: 10px;
  padding: 7px 12px;
  cursor: pointer;
  transition: transform 0.12s ease, color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.mode-btn:hover,
.bar-btn:hover {
  color: var(--amber-warm);
  box-shadow: 0 0 0 1px rgba(255, 190, 116, 0.2), 0 0 18px var(--amber-glow);
}

.mode-btn:active,
.bar-btn:active {
  transform: translateY(2px);
}

.mode-btn.active {
  color: #2b1508;
  background: linear-gradient(180deg, var(--amber-warm), var(--amber));
  border-color: rgba(255, 214, 162, 0.6);
  box-shadow: 0 0 22px var(--amber-glow), inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

/* ------------------------------------------------------- 粉笔黑板（墙上） */

#chalkboard {
  position: relative;
  padding: 14px 18px 10px;
  border-radius: 16px;
  background:
    radial-gradient(120% 160% at 20% 0%, rgba(255, 255, 255, 0.05), transparent 55%),
    linear-gradient(180deg, var(--board), var(--board-edge));
  border: 10px solid var(--oak-light);
  border-image: linear-gradient(160deg, #8a5c32, #5c3a22 55%, #3a2313) 1;
  box-shadow: var(--shadow-deep), inset 0 0 40px rgba(0, 0, 0, 0.55);
  transform: rotate(-0.35deg);
}

#chalkboard::after {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: -7px;
  height: 6px;
  border-radius: 0 0 8px 8px;
  background: linear-gradient(180deg, var(--oak-light), var(--oak-deep));
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.5);
}

.board-label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: rgba(239, 236, 224, 0.5);
}

.board-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(112px, 1fr));
  gap: 10px 14px;
}

.chalk-cell {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 5px 8px;
  border-radius: 8px;
  background: rgba(239, 236, 224, 0.045);
  border-left: 2px solid rgba(239, 236, 224, 0.18);
}

.chalk-cell span {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: rgba(239, 236, 224, 0.62);
}

.chalk-cell b,
.lcd {
  margin-left: auto;
  font-size: 17px;
  font-variant-numeric: tabular-nums;
  color: var(--chalk);
  text-shadow: 0 0 10px rgba(239, 236, 224, 0.28);
}

#danger-cell {
  position: relative;
  overflow: hidden;
}

#danger-cell::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 140% at 0% 50%, rgba(255, 122, 77, calc(var(--danger-level, 0) * 0.75)), transparent 72%);
  pointer-events: none;
  transition: background 0.25s linear;
}

#danger-cell.hot b {
  color: #ffd9c6;
  text-shadow: 0 0 14px rgba(255, 122, 77, 0.8);
}

#hazard-line {
  margin: 10px 0 0;
  font-size: 12px;
  color: rgba(239, 236, 224, 0.55);
  letter-spacing: 0.08em;
}

/* ------------------------------------------------------- 舞台 */

#stage {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

#stage-head {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  align-items: center;
  font-size: 13px;
}

.tag {
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255, 190, 116, 0.1);
  border: 1px solid rgba(255, 190, 116, 0.18);
  color: var(--ui-text);
}

.tag.goal {
  color: var(--amber-warm);
  background: rgba(255, 190, 116, 0.16);
}

.tag.mode {
  color: #b9e6ff;
  background: rgba(120, 200, 255, 0.1);
  border-color: rgba(120, 200, 255, 0.24);
}

#level-name {
  letter-spacing: 0.12em;
}

#canvas-wrap {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  background:
    radial-gradient(680px 420px at 50% 8%, rgba(255, 190, 116, 0.16), transparent 70%),
    linear-gradient(180deg, #3a2414 0%, #241408 62%, #170d06 100%);
  border: 1px solid rgba(255, 190, 116, 0.16);
  box-shadow: inset 0 0 60px rgba(0, 0, 0, 0.6), var(--shadow-deep);
  min-height: 320px;
}

#tower {
  display: block;
  width: 100%;
  height: clamp(320px, 54vh, 620px);
  touch-action: none;
  overscroll-behavior: none;
  cursor: grab;
}

#tower:active {
  cursor: grabbing;
}

.hint {
  position: absolute;
  left: 14px;
  bottom: 12px;
  margin: 0;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12.5px;
  color: var(--ui-dim);
  background: rgba(20, 12, 6, 0.6);
  border: 1px solid rgba(255, 190, 116, 0.14);
  backdrop-filter: blur(3px);
  pointer-events: none;
}

#toast {
  position: absolute;
  left: 50%;
  top: 14px;
  transform: translate(-50%, -12px);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  color: #2b1508;
  background: linear-gradient(180deg, var(--amber-warm), var(--amber));
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.45), 0 0 24px var(--amber-glow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
}

#toast.warn {
  color: #fff1e6;
  background: linear-gradient(180deg, #ff8f66, #d94f27);
}

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

/* ------------------------------------------------------- 浮层 */

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
  justify-content: center;
  padding: clamp(16px, 4vw, 42px);
  text-align: center;
  background: radial-gradient(80% 80% at 50% 40%, rgba(28, 17, 9, 0.86), rgba(12, 7, 4, 0.95));
  backdrop-filter: blur(4px);
  animation: fadeIn 0.22s ease both;
  overflow: auto;
}

.overlay[hidden] {
  display: none;
}

.overlay.wide {
  justify-content: flex-start;
}

.overlay h2 {
  margin: 0 0 4px;
  font-size: clamp(19px, 3vw, 25px);
  letter-spacing: 0.1em;
  color: var(--amber-warm);
}

.overlay p {
  margin: 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.72;
  color: #e6d3bc;
}

.stars {
  font-size: 22px;
  letter-spacing: 0.24em;
  color: var(--amber);
  text-shadow: 0 0 18px var(--amber-glow);
}

.btn-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 6px;
}

#ov-levels .btn-row {
  margin-top: 14px;
}

#levels-list {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.chapter-group {
  text-align: left;
}

.chapter-name {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--amber-warm);
}

.level-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(132px, 1fr));
  gap: 8px;
}

.level-chip {
  display: flex;
  flex-direction: column;
  gap: 2px;
  align-items: flex-start;
  padding: 8px 10px;
  border-radius: 10px;
  cursor: pointer;
  font: inherit;
  color: var(--ui-text);
  background: linear-gradient(180deg, rgba(255, 214, 162, 0.12), rgba(0, 0, 0, 0.28));
  border: 1px solid rgba(255, 190, 116, 0.18);
  transition: transform 0.12s ease, box-shadow 0.2s ease;
}

.level-chip:hover:not(:disabled) {
  box-shadow: 0 0 18px var(--amber-glow);
}

.level-chip:active:not(:disabled) {
  transform: translateY(2px);
}

.level-chip.locked {
  opacity: 0.42;
  cursor: not-allowed;
}

.chip-index {
  font-size: 11px;
  color: var(--ui-dim);
  letter-spacing: 0.16em;
}

.chip-name {
  font-size: 14px;
}

.chip-stars {
  font-size: 12px;
  color: var(--amber);
  letter-spacing: 0.1em;
}

/* ------------------------------------------------------- 木质工具槽 */

#tray {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  justify-content: center;
  padding: 18px 16px 14px;
  border-radius: 16px;
}

#tray::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 16px;
  background:
    repeating-linear-gradient(92deg, rgba(0, 0, 0, 0.16) 0 2px, transparent 2px 9px),
    linear-gradient(180deg, var(--oak-mid), var(--oak) 55%, var(--oak-deep));
  border: 1px solid rgba(255, 190, 116, 0.16);
  box-shadow: inset 0 2px 0 rgba(255, 214, 162, 0.16), var(--shadow-deep);
  transform: perspective(760px) rotateX(13deg);
  transform-origin: bottom center;
}

.tool-cluster {
  position: relative;
  display: flex;
  gap: 8px;
  align-items: center;
}

.tray-btn {
  position: relative;
  font: inherit;
  font-size: 13px;
  padding: 9px 14px;
  border-radius: 10px;
  cursor: pointer;
  color: var(--ui-dim);
  background: linear-gradient(180deg, #7c5029, #4a2c19);
  border: 1px solid rgba(255, 190, 116, 0.2);
  box-shadow: inset 0 1px 0 rgba(255, 214, 162, 0.28), 0 4px 0 #2a1809, 0 10px 18px rgba(0, 0, 0, 0.4);
  transition: transform 0.12s ease, color 0.2s ease, filter 0.2s ease;
}

.tray-btn:hover:not(:disabled) {
  color: var(--amber-warm);
  filter: brightness(1.12);
}

.tray-btn:active:not(:disabled) {
  transform: translateY(3px);
  box-shadow: inset 0 1px 0 rgba(255, 214, 162, 0.2), 0 1px 0 #2a1809;
}

.tray-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  box-shadow: none;
}

.tray-btn.primary {
  color: #2b1508;
  background: linear-gradient(180deg, var(--amber-warm), var(--amber));
  border-color: rgba(255, 236, 205, 0.7);
  box-shadow: 0 4px 0 #8a5320, 0 0 26px var(--amber-glow);
}

/* 三个堆叠槽位：无边界径向柔光提示可用，禁硬边描边圈 */
.tray-btn.slot {
  min-width: 66px;
  color: #f7e7d2;
}

.tray-btn.slot.armed {
  color: #fff3e2;
  background: radial-gradient(120% 140% at 50% 0%, rgba(255, 214, 162, 0.55), transparent 72%), linear-gradient(180deg, #8a5c33, #52301b);
  box-shadow: inset 0 1px 0 rgba(255, 236, 205, 0.4), 0 4px 0 #2a1809, 0 0 26px var(--amber-glow);
}

.dim {
  color: var(--ui-dim);
}

#tip-line,
#touch-line {
  margin: 0;
  font-size: 12px;
  text-align: center;
}

:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(255, 190, 116, 0.5), 0 0 22px var(--amber-glow);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

/* ------------------------------------------------------- 移动端 */

@media (max-width: 768px) {
  #marquee {
    flex-wrap: wrap;
  }

  .marquee-actions {
    width: 100%;
    justify-content: flex-start;
  }

  #stage-title {
    font-size: 17px;
  }

  .board-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  #tower {
    height: clamp(300px, 46vh, 460px);
  }

  #tray {
    gap: 8px 10px;
    padding: 14px 10px 12px;
  }

  .tray-btn {
    padding: 10px 12px;
    font-size: 12.5px;
  }

  .tool-cluster.slot-cluster .tray-btn {
    min-width: 0;
    flex: 1;
  }

  #tip-line {
    display: none;
  }
}

@media (max-width: 420px) {
  .level-chip {
    padding: 7px 8px;
  }
}

/* ------------------------------------------------------- 降级 */

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  #tray::before {
    transform: none;
  }

  #chalkboard {
    transform: none;
  }
}