/* 深海合珠 bubble-merge · 深海水族馆 · 虹彩玻璃珠 */

:root {
  --tank-deep: #0e3b4d;
  --tank-indigo: #1b4f72;
  --tank-abyss: #07222e;
  --foam: #eafbff;
  --foam-dim: #9fc6d4;
  --iris-pink: #ff9eb5;
  --iris-cyan: #6fe3e1;
  --iris-yellow: #ffd66b;
  --iris-purple: #b39ddb;
  --danger: #ff6b6b;
  --gold: #ffe6a3;

  --card-bg: linear-gradient(160deg, rgba(27, 79, 114, 0.55), rgba(14, 59, 77, 0.42));
  --card-br: rgba(159, 230, 255, 0.16);
  --card-shadow: 0 10px 28px rgba(3, 18, 26, 0.42), inset 0 1px 0 rgba(234, 251, 255, 0.08);
  --btn-shadow: 0 5px 0 rgba(5, 26, 36, 0.55), 0 8px 18px rgba(3, 18, 26, 0.4);

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --r-lg: 20px;
  --r-md: 14px;
  --r-sm: 10px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  height: 100dvh;
  overflow: hidden;
  overscroll-behavior: none;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font);
  color: var(--foam);
  background-color: var(--tank-abyss);
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  overscroll-behavior: none;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* —— 环境光晕 + 细噪点水纹（深夜水族馆一角）—— */
.ambient {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(48% 40% at 18% 16%, rgba(111, 227, 225, 0.16), transparent 70%),
    radial-gradient(44% 42% at 84% 22%, rgba(179, 157, 219, 0.16), transparent 72%),
    radial-gradient(60% 50% at 50% 108%, rgba(27, 79, 114, 0.5), transparent 70%),
    linear-gradient(170deg, #0e3b4d 0%, #0a2c3c 48%, #07222e 100%);
  animation: drift 26s ease-in-out infinite alternate;
}
.ambient::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.05;
  background-image: radial-gradient(rgba(234, 251, 255, 0.7) 0.6px, transparent 0.7px);
  background-size: 7px 7px;
  mix-blend-mode: overlay;
}
@keyframes drift {
  0%   { background-position: 0% 0%, 100% 0%, 50% 100%, 0 0; transform: scale(1); }
  100% { background-position: 6% 4%, 94% 6%, 50% 100%, 0 0; transform: scale(1.04); }
}

/* —— 顶部紧凑工具栏（非营销页头）—— */
.topbar {
  position: relative;
  z-index: 3;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px clamp(12px, 3vw, 26px);
}

.back-home {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 13px 7px 10px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--foam);
  text-decoration: none;
  background: rgba(234, 251, 255, 0.08);
  border: 1px solid var(--card-br);
  box-shadow: 0 3px 0 rgba(5, 26, 36, 0.4);
  transition: transform 0.14s ease, background 0.2s ease;
}
.back-home:hover { transform: translateY(-2px); background: rgba(234, 251, 255, 0.15); }
.back-home:active { transform: translateY(1px); box-shadow: 0 1px 0 rgba(5, 26, 36, 0.4); }
.back-icon { width: 16px; height: 16px; }

.title {
  flex: 1 1 auto;
  margin: 0;
  font-size: clamp(17px, 2.4vw, 23px);
  font-weight: 800;
  letter-spacing: 0.06em;
  text-align: center;
  background: linear-gradient(92deg, var(--iris-cyan), var(--foam) 40%, var(--iris-pink) 78%, var(--iris-yellow));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 2px 16px rgba(111, 227, 225, 0.18);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tools { flex: 0 0 auto; display: flex; gap: 8px; }
.tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 11px;
  border-radius: 999px;
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  color: var(--foam);
  cursor: pointer;
  background: rgba(234, 251, 255, 0.07);
  border: 1px solid var(--card-br);
  box-shadow: 0 3px 0 rgba(5, 26, 36, 0.4);
  transition: transform 0.14s ease, background 0.2s ease;
}
.tool-btn:hover { transform: translateY(-2px); background: rgba(234, 251, 255, 0.14); }
.tool-btn:active { transform: translateY(1px); box-shadow: 0 1px 0 rgba(5, 26, 36, 0.4); }
.tool-btn[aria-pressed="false"] { opacity: 0.6; }
.tool-ico { font-size: 13px; line-height: 1; }

/* —— 主舞台：桌面双栏 —— */
.stage {
  position: relative;
  z-index: 2;
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 336px;
  gap: clamp(12px, 1.6vw, 22px);
  padding: 4px clamp(12px, 3vw, 26px) clamp(12px, 2.4vh, 22px);
  align-items: stretch;
}

/* 左：水缸 */
.tank-wrap {
  position: relative;
  min-width: 0;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
#game-canvas {
  display: block;
  aspect-ratio: 440 / 660;
  max-width: 100%;
  max-height: 100%;
  border-radius: 26px 26px 18px 18px;
  box-shadow:
    0 0 0 2px rgba(159, 230, 255, 0.14),
    0 26px 60px rgba(2, 14, 20, 0.6),
    inset 0 0 60px rgba(8, 38, 52, 0.5);
  touch-action: none;
  cursor: crosshair;
}
.danger-banner {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #fff;
  background: rgba(255, 107, 107, 0.9);
  box-shadow: 0 6px 20px rgba(255, 80, 80, 0.4);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.danger-banner.is-on {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  animation: dangerPulse 0.7s ease-in-out infinite;
}
@keyframes dangerPulse { 50% { box-shadow: 0 6px 30px rgba(255, 80, 80, 0.75); } }

/* 右：HUD */
.hud {
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
  padding-right: 2px;
  scrollbar-width: thin;
  scrollbar-color: rgba(159, 230, 255, 0.3) transparent;
}
.hud::-webkit-scrollbar { width: 7px; }
.hud::-webkit-scrollbar-thumb { background: rgba(159, 230, 255, 0.28); border-radius: 99px; }

.mode-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding: 5px;
  border-radius: 999px;
  background: rgba(7, 34, 46, 0.5);
  border: 1px solid var(--card-br);
}
.mode-tab {
  padding: 8px 6px;
  border: 0;
  border-radius: 999px;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  color: var(--foam-dim);
  background: transparent;
  cursor: pointer;
  transition: color 0.18s ease, background 0.18s ease, transform 0.12s ease;
}
.mode-tab:hover { color: var(--foam); }
.mode-tab:active { transform: translateY(1px); }
.mode-tab.is-active {
  color: #06222e;
  background: linear-gradient(180deg, var(--iris-cyan), #48c9d6);
  box-shadow: 0 3px 10px rgba(72, 201, 214, 0.4);
}
.mode-tab:disabled { opacity: 0.45; cursor: not-allowed; }

.card {
  background: var(--card-bg);
  border: 1px solid var(--card-br);
  border-radius: var(--r-lg);
  box-shadow: var(--card-shadow);
  padding: 13px 15px;
  backdrop-filter: blur(6px);
}
.card-title {
  margin: 0 0 10px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--foam-dim);
}

/* 图鉴 */
.codex {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px 6px;
}
.codex li {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  opacity: 0.4;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.codex li.is-reached { opacity: 1; }
.codex li.is-target { opacity: 1; transform: translateY(-2px); }
.codex-pearl {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: radial-gradient(circle at 34% 30%, rgba(255, 255, 255, 0.92), var(--pearl, #6fe3e1) 58%, rgba(14, 59, 77, 0.6));
  box-shadow: 0 0 0 1px rgba(234, 251, 255, 0.25), 0 3px 8px rgba(2, 14, 20, 0.4);
}
.codex li.is-target .codex-pearl {
  box-shadow: 0 0 0 1px rgba(234, 251, 255, 0.5), 0 0 16px 3px var(--pearl, #6fe3e1);
  animation: targetGlow 1.6s ease-in-out infinite;
}
@keyframes targetGlow { 50% { box-shadow: 0 0 0 1px rgba(234,251,255,0.6), 0 0 22px 6px var(--pearl, #6fe3e1); } }
.codex-num { font-size: 10px; font-weight: 800; color: var(--foam-dim); }

/* 计分牌 */
.score-card { display: flex; flex-direction: column; gap: 9px; }
.badge {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 9px 13px;
  border-radius: var(--r-md);
  background: linear-gradient(180deg, rgba(9, 41, 55, 0.7), rgba(7, 30, 41, 0.55));
  border: 1px solid rgba(159, 230, 255, 0.12);
  box-shadow: inset 0 1px 0 rgba(234, 251, 255, 0.07), 0 4px 12px rgba(2, 14, 20, 0.3);
}
.badge-score { align-items: center; }
.badge-cap { font-size: 10px; font-weight: 700; letter-spacing: 0.1em; color: var(--foam-dim); text-transform: uppercase; }
.badge-val {
  font-size: 30px;
  font-weight: 800;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--foam);
  text-shadow: 0 2px 14px rgba(111, 227, 225, 0.3);
}
.badge-val.bump { animation: bump 0.34s cubic-bezier(0.34, 1.56, 0.64, 1); }
@keyframes bump { 0% { transform: scale(1); } 38% { transform: scale(1.26); color: var(--iris-yellow); } 100% { transform: scale(1); } }
.badge-row { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.badge-mini { align-items: center; padding: 8px 6px; }
.badge-mini .badge-val { font-size: 21px; }
.best-line {
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--iris-yellow);
  letter-spacing: 0.02em;
}

/* 预览槽 */
.preview-row { display: flex; align-items: center; justify-content: space-around; gap: 8px; }
.preview-slot { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.preview-pearl {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: radial-gradient(circle at 34% 30%, rgba(255, 255, 255, 0.94), var(--pearl, #6fe3e1) 56%, rgba(14, 59, 77, 0.55));
  box-shadow: 0 0 0 1px rgba(234, 251, 255, 0.3), 0 5px 14px rgba(2, 14, 20, 0.45), inset 0 -4px 10px rgba(14, 59, 77, 0.4);
  transition: transform 0.2s ease;
}
.preview-pearl.is-next { width: 34px; height: 34px; opacity: 0.82; }
.preview-cap { font-size: 10px; font-weight: 700; color: var(--foam-dim); }
.preview-arrow { font-size: 24px; color: var(--foam-dim); opacity: 0.6; }
.preview-hint { margin: 9px 0 0; text-align: center; font-size: 11px; color: var(--foam-dim); }

/* 操作台 */
.control-card { display: flex; flex-direction: column; gap: 9px; }
.ctrl-row { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.ctrl-btn,
.primary-btn {
  font: inherit;
  font-weight: 800;
  letter-spacing: 0.03em;
  color: var(--foam);
  padding: 12px 14px;
  border-radius: var(--r-md);
  border: 1px solid rgba(159, 230, 255, 0.18);
  background: linear-gradient(180deg, rgba(31, 92, 124, 0.85), rgba(16, 60, 80, 0.85));
  box-shadow: var(--btn-shadow);
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, filter 0.18s ease;
}
.ctrl-btn:hover, .primary-btn:hover { transform: translateY(-2px); filter: brightness(1.1); }
.ctrl-btn:active, .primary-btn:active { transform: translateY(2px); box-shadow: 0 2px 0 rgba(5, 26, 36, 0.55), 0 4px 10px rgba(3, 18, 26, 0.4); }
.ctrl-btn:disabled, .primary-btn:disabled { opacity: 0.42; cursor: not-allowed; transform: none; filter: none; }
.ctrl-btn.primary, .primary-btn {
  color: #06222e;
  border-color: rgba(234, 251, 255, 0.5);
  background: linear-gradient(180deg, #8ff0ee, #46c8d4);
  box-shadow: 0 5px 0 #2a97a6, 0 10px 22px rgba(70, 200, 212, 0.36);
}
.ctrl-btn.primary:active, .primary-btn:active { box-shadow: 0 2px 0 #2a97a6, 0 4px 10px rgba(70, 200, 212, 0.3); }
.control-hint { margin: 2px 0 0; text-align: center; font-size: 11px; color: var(--foam-dim); }

:focus-visible {
  outline: 3px solid var(--iris-cyan);
  outline-offset: 2px;
  border-radius: 8px;
}

/* —— 浮层 —— */
.overlay {
  position: absolute;
  inset: 0;
  z-index: 6;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: radial-gradient(80% 70% at 50% 40%, rgba(8, 38, 52, 0.7), rgba(4, 18, 26, 0.9));
  backdrop-filter: blur(4px);
  animation: fadeIn 0.24s ease;
}
.overlay[hidden] { display: none; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.overlay-card {
  width: min(420px, 100%);
  max-height: 100%;
  overflow-y: auto;
  text-align: center;
  padding: 26px 24px;
  border-radius: 24px;
  background: linear-gradient(165deg, rgba(24, 74, 98, 0.96), rgba(11, 46, 62, 0.97));
  border: 1px solid rgba(159, 230, 255, 0.22);
  box-shadow: 0 30px 70px rgba(2, 12, 18, 0.6), inset 0 1px 0 rgba(234, 251, 255, 0.1);
  animation: pop 0.32s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes pop { from { transform: scale(0.86) translateY(12px); opacity: 0; } to { transform: scale(1) translateY(0); opacity: 1; } }
.overlay-kicker { font-size: 11px; font-weight: 800; letter-spacing: 0.3em; color: var(--iris-cyan); margin-bottom: 6px; }
.overlay-title {
  margin: 0 0 10px;
  font-size: 28px;
  font-weight: 800;
  background: linear-gradient(92deg, var(--iris-cyan), var(--foam) 46%, var(--iris-pink));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.overlay-desc { margin: 0 auto 16px; max-width: 34ch; font-size: 13.5px; line-height: 1.7; color: var(--foam-dim); }
.overlay-modes { display: flex; gap: 8px; justify-content: center; margin-bottom: 18px; }
.mode-chip {
  font-size: 11px; font-weight: 700; padding: 5px 12px; border-radius: 999px;
  color: var(--foam-dim); background: rgba(234, 251, 255, 0.07); border: 1px solid var(--card-br);
}
.help-card { text-align: left; }
.help-body p { margin: 0 0 11px; font-size: 13px; line-height: 1.7; color: var(--foam-dim); }
.help-body p:last-child { margin-bottom: 0; }
.help-card .primary-btn { width: 100%; margin-top: 18px; }

.newbest {
  display: inline-block;
  margin-bottom: 8px;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: #4a3000;
  background: linear-gradient(180deg, var(--gold), #f0c75e);
  box-shadow: 0 4px 14px rgba(255, 214, 107, 0.5);
  animation: bump 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.newbest[hidden] { display: none; }
.result-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 4px 0 14px; }
.result-cell {
  display: flex; flex-direction: column; gap: 3px;
  padding: 12px 6px; border-radius: var(--r-md);
  background: rgba(9, 41, 55, 0.6); border: 1px solid rgba(159, 230, 255, 0.12);
}
.result-num { font-size: 25px; font-weight: 800; font-variant-numeric: tabular-nums; color: var(--foam); }
.result-cap { font-size: 10px; font-weight: 700; letter-spacing: 0.06em; color: var(--foam-dim); }
.result-best { margin: 0 0 4px; font-size: 13px; font-weight: 700; color: var(--iris-yellow); }
.result-tip { margin: 0 0 16px; font-size: 11.5px; color: var(--foam-dim); }
.result .primary-btn { width: 100%; }

/* toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%) translateY(10px);
  z-index: 20;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  color: var(--foam);
  background: rgba(9, 41, 55, 0.94);
  border: 1px solid var(--card-br);
  box-shadow: 0 10px 30px rgba(2, 12, 18, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
}
.toast.is-on { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast[hidden] { display: none; }

.noscript {
  position: relative; z-index: 5; margin: 40px auto; max-width: 420px;
  padding: 18px; text-align: center; border-radius: var(--r-md);
  background: rgba(255, 107, 107, 0.14); border: 1px solid rgba(255, 107, 107, 0.4);
}

/* —— 移动端：单列紧凑 —— */
@media (max-width: 900px) {
  .stage { grid-template-columns: minmax(0, 360px); grid-template-rows: minmax(0, 1fr) auto; justify-content: center; }
  .hud { overflow-y: visible; flex-direction: row; flex-wrap: wrap; align-items: stretch; }
  .hud .mode-tabs { flex: 1 1 100%; }
  .hud .card { flex: 1 1 150px; }
  .codex { grid-template-columns: repeat(10, 1fr); }
  .codex-pearl { width: 20px; height: 20px; }
  .preview-card, .control-card { flex: 1 1 100%; }
}

@media (max-width: 768px) {
  body { overflow: auto; }
  .topbar { padding: 8px 12px; gap: 8px; }
  .tool-label { display: none; }
  .tool-btn { padding: 8px 10px; }
  .stage { padding: 4px 12px 16px; gap: 12px; grid-template-columns: minmax(0, 1fr); }
  .tank-wrap { min-height: 48dvh; }
  .hud { flex-direction: column; }
  .hud .card { flex: 1 1 auto; }
  .codex { grid-template-columns: repeat(5, 1fr); }
  .codex-pearl { width: 26px; height: 26px; }
  .badge-val { font-size: 26px; }
}

@media (max-width: 390px) {
  .title { font-size: 16px; letter-spacing: 0.02em; }
  .overlay-card { padding: 20px 16px; }
  .overlay-title { font-size: 23px; }
  .result-num { font-size: 21px; }
  .badge-val { font-size: 23px; }
}

/* —— 动效降级 —— */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .ambient { animation: none; }
  .codex li.is-target .codex-pearl { animation: none; }
  .badge-val.bump { animation: none; }
  .danger-banner.is-on { animation: none; }
}