/* 积木爆破 · 霓虹积木工坊 —— 深夜游戏厅玻璃展示柜视窗
   统一底蕴：沉浸暗色底、实体微浮雕、柔和光晕；独立个性：街机玻璃柜 + LED 计分牌 */

:root {
  --bg-deep: #070b16;
  --bg-room: #0b1224;
  --neon: #4df3ff;
  --neon-soft: rgba(77, 243, 255, 0.55);
  --magenta: #ff4dd2;
  --amber: #ffd166;
  --ink: #e8f4ff;
  --ink-dim: #9fb3cc;
  --panel: rgba(13, 20, 38, 0.86);
  --panel-edge: rgba(94, 234, 255, 0.22);
  --shadow-deep: 0 18px 48px rgba(0, 0, 0, 0.55);
  --font-led: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --font-ui: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-ui);
  color: var(--ink);
  background:
    radial-gradient(1200px 700px at 18% -10%, rgba(77, 243, 255, 0.14), transparent 60%),
    radial-gradient(1000px 620px at 88% 8%, rgba(255, 77, 210, 0.12), transparent 62%),
    radial-gradient(900px 900px at 50% 120%, rgba(24, 40, 80, 0.5), transparent 60%),
    linear-gradient(180deg, var(--bg-room), var(--bg-deep) 70%);
  background-attachment: fixed;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 18px 16px calc(16px + env(safe-area-inset-bottom));
  overscroll-behavior: none;
}

/* ---------------------------------------------------------------- 微尘氛围 */

.arcade-room {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.arcade-room .dust {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--neon);
  opacity: 0.25;
  filter: blur(1px);
  animation: drift 14s ease-in-out infinite;
}

.arcade-room .d1 { left: 12%; top: 22%; animation-delay: 0s; background: var(--neon); }
.arcade-room .d2 { left: 78%; top: 16%; animation-delay: -3s; background: var(--magenta); }
.arcade-room .d3 { left: 34%; top: 68%; animation-delay: -6s; }
.arcade-room .d4 { left: 62%; top: 52%; animation-delay: -9s; background: var(--amber); }
.arcade-room .d5 { left: 88%; top: 74%; animation-delay: -2s; }
.arcade-room .d6 { left: 22%; top: 44%; animation-delay: -11s; background: var(--magenta); }

@keyframes drift {
  0%, 100% { transform: translate3d(0, 0, 0); opacity: 0.12; }
  50% { transform: translate3d(14px, -26px, 0); opacity: 0.34; }
}

/* ---------------------------------------------------------------- 布局骨架 */

#game-app {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 560px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* ---------------------------------------------------------------- 柜顶状态条 */

#stage-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: linear-gradient(180deg, rgba(20, 30, 56, 0.92), rgba(11, 17, 33, 0.92));
  border: 1px solid var(--panel-edge);
  border-radius: 16px;
  box-shadow:
    var(--shadow-deep),
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 0 24px rgba(77, 243, 255, 0.1);
}

#stage-title {
  flex: 1;
  min-width: 0;
  margin: 0;
  font-size: 20px;
  letter-spacing: 0.04em;
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  text-shadow: 0 0 14px rgba(77, 243, 255, 0.45);
}

#stage-title small {
  font-size: 11px;
  font-weight: 500;
  color: var(--ink-dim);
  letter-spacing: 0.08em;
  text-shadow: none;
}

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

.bar-btn {
  appearance: none;
  border: 1px solid var(--panel-edge);
  background: linear-gradient(180deg, rgba(38, 54, 92, 0.9), rgba(20, 30, 56, 0.9));
  color: var(--ink);
  font-size: 13px;
  padding: 7px 11px;
  border-radius: 10px;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: transform 0.12s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  box-shadow: 0 3px 0 rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.bar-btn:hover {
  border-color: var(--neon-soft);
  box-shadow: 0 3px 0 rgba(0, 0, 0, 0.45), 0 0 16px rgba(77, 243, 255, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.bar-btn:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.45), inset 0 2px 6px rgba(0, 0, 0, 0.4);
}

.bar-btn:focus-visible,
.cab-btn:focus-visible,
.mode-card:focus-visible {
  outline: none;
  border-color: var(--neon);
  box-shadow: 0 0 0 2px rgba(77, 243, 255, 0.35), 0 0 22px rgba(77, 243, 255, 0.4);
}

/* ---------------------------------------------------------------- LED 计分牌 */

#led-board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  padding: 12px;
  background:
    linear-gradient(180deg, rgba(8, 12, 24, 0.95), rgba(14, 20, 40, 0.95));
  border: 1px solid rgba(77, 243, 255, 0.28);
  border-radius: 14px;
  box-shadow:
    inset 0 2px 14px rgba(0, 0, 0, 0.75),
    0 0 26px rgba(77, 243, 255, 0.12),
    var(--shadow-deep);
}

.led-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 7px 4px;
  background: rgba(6, 10, 20, 0.6);
  border-radius: 9px;
  border: 1px solid rgba(94, 234, 255, 0.12);
}

.led-tag {
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--ink-dim);
  white-space: nowrap;
}

.led-value {
  font-family: var(--font-led);
  font-size: 17px;
  font-weight: 700;
  color: var(--neon);
  text-shadow: 0 0 10px rgba(77, 243, 255, 0.75), 0 0 22px rgba(77, 243, 255, 0.35);
  font-variant-numeric: tabular-nums;
}

/* ---------------------------------------------------------------- 玻璃展示柜 */

#cabinet {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

#cabinet-glass {
  position: relative;
  border-radius: 20px;
  padding: 10px;
  background:
    linear-gradient(160deg, rgba(30, 44, 82, 0.55), rgba(10, 15, 30, 0.85));
  border: 1px solid rgba(77, 243, 255, 0.32);
  box-shadow:
    var(--shadow-deep),
    inset 0 1px 0 rgba(255, 255, 255, 0.1),
    inset 0 0 42px rgba(77, 243, 255, 0.07),
    0 0 34px rgba(77, 243, 255, 0.16),
    0 0 64px rgba(255, 77, 210, 0.08);
  overflow: hidden;
}

/* 玻璃反光：左上斜向柔光带 */
.glass-sheen {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(115deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.02) 28%, transparent 45%);
  z-index: 2;
}

#stage {
  display: block;
  width: 100%;
  height: min(62vh, 540px);
  min-height: 380px;
  touch-action: none;
  overscroll-behavior: none;
  cursor: pointer;
  border-radius: 14px;
}

#stage:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

/* ---------------------------------------------------------------- 柜体底座 */

#cabinet-base {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  padding: 12px;
  background: linear-gradient(180deg, rgba(24, 34, 62, 0.9), rgba(12, 18, 36, 0.92));
  border: 1px solid var(--panel-edge);
  border-radius: 16px;
  box-shadow: var(--shadow-deep), inset 0 1px 0 rgba(255, 255, 255, 0.07);
}

.cab-btn {
  appearance: none;
  border: 1px solid rgba(94, 234, 255, 0.26);
  background: linear-gradient(180deg, rgba(44, 62, 104, 0.95), rgba(22, 32, 60, 0.95));
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 11px 8px;
  border-radius: 12px;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.cab-btn:hover {
  border-color: var(--neon-soft);
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.5), 0 0 18px rgba(77, 243, 255, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.cab-btn:active {
  transform: translateY(2px);
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.5), inset 0 2px 8px rgba(0, 0, 0, 0.45);
}

.cab-btn.primary {
  background: linear-gradient(180deg, rgba(77, 243, 255, 0.32), rgba(34, 120, 160, 0.5));
  border-color: rgba(77, 243, 255, 0.6);
  color: #f2ffff;
  text-shadow: 0 0 10px rgba(77, 243, 255, 0.6);
}

/* ---------------------------------------------------------------- 吐司 */

#toast {
  position: fixed;
  left: 50%;
  bottom: calc(96px + env(safe-area-inset-bottom));
  transform: translateX(-50%) translateY(8px);
  margin: 0;
  padding: 9px 18px;
  background: rgba(10, 16, 32, 0.92);
  border: 1px solid var(--neon-soft);
  border-radius: 999px;
  color: var(--ink);
  font-size: 14px;
  letter-spacing: 0.04em;
  box-shadow: 0 0 22px rgba(77, 243, 255, 0.35), var(--shadow-deep);
  opacity: 0;
  transition: opacity 0.18s ease, transform 0.18s ease;
  z-index: 40;
  pointer-events: none;
}

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

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

.overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(4, 7, 14, 0.72);
  backdrop-filter: blur(6px);
}

.overlay[hidden] {
  display: none;
}

.overlay-panel {
  width: 100%;
  max-width: 420px;
  max-height: 86vh;
  overflow-y: auto;
  padding: 22px;
  background: linear-gradient(180deg, rgba(18, 27, 50, 0.97), rgba(10, 15, 30, 0.97));
  border: 1px solid rgba(77, 243, 255, 0.35);
  border-radius: 20px;
  box-shadow: var(--shadow-deep), 0 0 44px rgba(77, 243, 255, 0.18);
  text-align: center;
}

.overlay-panel h2 {
  margin: 0 0 6px;
  font-size: 22px;
  letter-spacing: 0.05em;
  text-shadow: 0 0 16px rgba(77, 243, 255, 0.5);
}

.overlay-note {
  margin: 4px 0 12px;
  font-size: 13px;
  color: var(--ink-dim);
}

.overlay-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 16px;
}

/* 模式卡（难度卡复用） */
.mode-cards {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.mode-card {
  appearance: none;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px;
  border-radius: 14px;
  border: 1px solid rgba(94, 234, 255, 0.24);
  background: linear-gradient(180deg, rgba(34, 48, 84, 0.8), rgba(16, 24, 46, 0.9));
  color: var(--ink);
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.mode-card b {
  font-size: 17px;
  letter-spacing: 0.04em;
}

.mode-card span {
  font-size: 13px;
  color: var(--ink-dim);
}

.mode-card em {
  font-style: normal;
  font-family: var(--font-led);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--neon);
}

.mode-card:hover {
  border-color: var(--neon);
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.45), 0 0 22px rgba(77, 243, 255, 0.3);
}

.mode-card:active {
  transform: translateY(2px);
}

/* 当前难度卡：无边界径向柔光标记，禁硬描边圈 */
.mode-card.current {
  border-color: rgba(255, 209, 102, 0.55);
  background:
    radial-gradient(120px 60px at 50% 0%, rgba(255, 209, 102, 0.16), transparent 70%),
    linear-gradient(180deg, rgba(34, 48, 84, 0.8), rgba(16, 24, 46, 0.9));
}

.mode-card.current em {
  color: var(--amber);
}

/* 结算 */
.result-badge {
  display: inline-block;
  margin: 0 0 8px;
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 209, 102, 0.55);
  color: var(--amber);
  font-family: var(--font-led);
  font-size: 16px;
  letter-spacing: 0.1em;
  text-shadow: 0 0 12px rgba(255, 209, 102, 0.6);
}

.result-badge.record {
  border-color: var(--magenta);
  color: #ffd8f4;
  text-shadow: 0 0 14px rgba(255, 77, 210, 0.8);
  animation: recordPulse 0.9s ease-in-out 3;
}

@keyframes recordPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}

.result-sub {
  margin: 0 0 12px;
  font-size: 14px;
  color: var(--ink-dim);
}

.result-rows {
  display: grid;
  gap: 6px;
  text-align: left;
}

.result-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 12px;
  background: rgba(8, 12, 24, 0.65);
  border: 1px solid rgba(94, 234, 255, 0.12);
  border-radius: 9px;
  font-size: 13px;
}

.result-row b {
  font-family: var(--font-led);
  color: var(--neon);
}

/* 玩法说明 */
.help-list {
  text-align: left;
  margin: 12px 0 0;
  padding-left: 20px;
  display: grid;
  gap: 8px;
  font-size: 13.5px;
  line-height: 1.55;
  color: #cfe2f5;
}

.noscript-note {
  position: relative;
  z-index: 1;
  color: var(--ink-dim);
  font-size: 14px;
}

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

@media (max-width: 768px) {
  body {
    padding: 12px 10px max(68px, calc(16px + env(safe-area-inset-bottom)));
  }

  #game-app {
    max-width: 100%;
    gap: 10px;
  }

  #stage {
    height: min(56vh, 460px);
    min-height: 340px;
  }

  #led-board {
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    padding: 10px;
  }

  .led-value {
    font-size: 15px;
  }

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

  #toast {
    bottom: calc(84px + env(safe-area-inset-bottom));
  }
}

@media (max-width: 380px) {
  .led-tag {
    font-size: 9px;
  }
}

/* ---------------------------------------------------------------- 动效降级 */

@media (prefers-reduced-motion: reduce) {
  .arcade-room .dust {
    animation: none;
  }

  .result-badge.record {
    animation: none;
  }

  .bar-btn,
  .cab-btn,
  .mode-card,
  #toast {
    transition: none;
  }
}