/* ─── Tokens ─────────────────────────────────────────── */
:root {
  --bg: #04060d;
  --bg-raise: #0d1322;
  --bg-edge: #1c2740;
  --ink: #f2f5fa;
  --ink-mute: #8b95a9;
  --ink-dim: #5a6478;
  --board: #fafbfc;
  --board-ink: #14181f;
  --board-ink-mute: #6b7482;
  --err: #ff5d5d;
  --rival: #ff475f;      /* 對手色：對手列車、名牌、落後徽章、再戰提示 */
  --line: #0070bd;       /* 當前路線色，JS 動態設定 */
  --line-ink: #ffffff;   /* 線色帶上的文字色 */
  --glow: color-mix(in srgb, var(--line) 60%, transparent);
  --glow-soft: color-mix(in srgb, var(--line) 24%, transparent);

  --glass: #0a101ecc;
  --glass-edge: #ffffff14;

  --radius-s: 8px;
  --radius-m: 14px;
  --radius-l: 22px;

  --dur-fast: 150ms;
  --dur-med: 280ms;
  --dur-slow: 480ms;
  --ease-out: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-in: cubic-bezier(0.55, 0.06, 0.68, 0.19);

  --horizon: clamp(230px, 36vh, 330px); /* 軌道面距畫面底部 */

  --font-zh: "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  --font-mono: "SF Mono", "JetBrains Mono", ui-monospace, Menlo, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body { height: 100%; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-zh);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

button { font-family: inherit; cursor: pointer; }
button:focus-visible, .line-card:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

.hidden { display: none !important; }

#app { min-height: 100dvh; display: flex; flex-direction: column; }

.screen { flex: 1; display: flex; flex-direction: column; }

.glass {
  background: var(--glass);
  border: 1px solid var(--glass-edge);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* ─── 路線選擇 ───────────────────────────────────────── */
#picker {
  position: relative;
  width: 100%;
  padding: 20px clamp(14px, 4vw, 28px) 48px;
  align-items: center;
  overflow: hidden;
}
#picker > :not(.picker-bg) { position: relative; z-index: 1; width: min(880px, 100%); }

.picker-bg {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  z-index: 0;
  opacity: 0.5;
  display: flex;
  justify-content: center;
  pointer-events: none;
  mask-image: linear-gradient(180deg, transparent, #000 70%);
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 70%);
}

.hero { text-align: center; padding: clamp(24px, 6vh, 56px) 0 26px; }

.hero-mark { display: flex; justify-content: center; gap: 7px; margin-bottom: 18px; }
.mark-dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--c);
  box-shadow: 0 0 10px color-mix(in srgb, var(--c) 80%, transparent);
}

.hero h1 {
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 800;
  letter-spacing: 0.14em;
  text-shadow: 0 0 32px #4d79ff40;
}

.tagline { margin-top: 10px; color: var(--ink-mute); font-size: 15px; }
.sub {
  margin-top: 8px;
  color: var(--ink-dim);
  font-size: 11px;
  letter-spacing: 0.32em;
}

/* 模式切換 */
.mode-row { display: flex; flex-direction: column; align-items: center; gap: 12px; margin-bottom: 22px; }

.mode-toggle {
  display: inline-flex;
  background: var(--bg-raise);
  border: 1px solid var(--bg-edge);
  border-radius: 99px;
  padding: 4px;
  gap: 4px;
}
.mode-btn {
  border: none;
  background: none;
  color: var(--ink-mute);
  font-size: 14px;
  font-weight: 700;
  padding: 8px 22px;
  border-radius: 99px;
  transition: background var(--dur-fast), color var(--dur-fast), box-shadow var(--dur-fast);
}
.mode-btn.active {
  background: var(--ink);
  color: #10141f;
  box-shadow: 0 0 18px #ffffff2e;
}

/* 打字語言切換：比模式切換小一號 */
.lang-toggle .mode-btn { font-size: 12px; padding: 6px 16px; }
.lang-toggle .mode-btn small {
  font-size: 10px;
  font-weight: 600;
  opacity: 0.65;
  margin-left: 2px;
}

.rival-row { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
.rival-chip {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  background: var(--bg-raise);
  border: 1px solid var(--bg-edge);
  color: var(--ink-mute);
  border-radius: var(--radius-m);
  padding: 9px 18px;
  font-size: 14px;
  font-weight: 700;
  transition: border-color var(--dur-fast), color var(--dur-fast), box-shadow var(--dur-fast);
}
.rival-chip small { font-size: 10px; font-weight: 500; color: var(--ink-dim); }
.rival-chip.active {
  color: var(--ink);
  border-color: var(--rc);
  box-shadow: 0 0 16px color-mix(in srgb, var(--rc) 45%, transparent);
}

.line-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}

.line-card {
  display: flex; align-items: center; gap: 14px;
  background: #0d1322d9;
  border: 1px solid var(--bg-edge);
  border-radius: var(--radius-m);
  padding: 16px 18px;
  color: var(--ink);
  text-align: left;
  transition: transform var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}
.line-card:hover {
  transform: translateY(-2px);
  border-color: var(--lc);
  box-shadow: 0 6px 26px color-mix(in srgb, var(--lc) 30%, transparent);
}
.line-card:active { transform: translateY(0); }

.roundel {
  flex: none;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--lc);
  color: var(--lc-ink);
  display: grid; place-items: center;
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.02em;
  box-shadow: 0 0 14px color-mix(in srgb, var(--lc) 55%, transparent);
}
.roundel.tra { border-radius: var(--radius-s); font-size: 14px; }

.line-card .lc-body { flex: 1; min-width: 0; }
.line-card .lc-name { display: block; font-size: 17px; font-weight: 700; }
.line-card .lc-meta {
  display: block; /* inline 元素無法套用截斷，會溢出蓋到右側欄 */
  margin-top: 3px;
  font-size: 12px;
  color: var(--ink-mute);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.line-card .lc-best {
  margin-left: auto;
  flex: none;
  font-size: 11px;
  color: var(--ink-dim);
  text-align: right;
  line-height: 1.5;
}
.line-card .lc-best b { display: block; color: var(--ink-mute); font-size: 14px; font-family: var(--font-mono); }

/* 首頁排行榜（選線畫面下方） */
.home-board {
  width: min(680px, 100%);
  margin: 48px auto 0;
  position: relative;
}
.hb-title {
  text-align: center;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.3em;
  color: var(--ink-mute);
  margin-bottom: 14px;
}
.hb-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-bottom: 12px;
}
.hb-tab {
  font-family: inherit;
  font-size: 12px;
  font-weight: 700;
  color: var(--ink-mute);
  background: var(--bg-raise);
  border: 1px solid var(--bg-edge);
  border-radius: 999px;
  padding: 6px 12px;
  cursor: pointer;
  transition: color var(--dur-fast), border-color var(--dur-fast);
}
.hb-tab::before {
  content: "";
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--lc);
  margin-right: 6px;
}
.hb-tab:hover { color: var(--ink); }
.hb-tab.active {
  color: var(--ink);
  border-color: var(--lc);
  box-shadow: 0 0 12px color-mix(in srgb, var(--lc) 40%, transparent);
}
.hb-list {
  background: #0d1322d9;
  border: 1px solid var(--bg-edge);
  border-radius: var(--radius-m);
  padding: 10px 14px;
  min-height: 64px;
}
.hb-list .board-hint { margin: 18px 0; }

.foot-hint {
  text-align: center;
  margin-top: 28px;
  font-size: 12px;
  color: var(--ink-dim);
}

/* 回捐血主站的引流連結（選線畫面底部與結算卡） */
.site-link {
  display: block;
  text-align: center;
  align-self: center;
  margin-top: 10px;
  font-size: 12px;
  color: var(--ink-dim);
  text-decoration: none;
  transition: color 0.2s;
}
.site-link:hover { color: var(--ink); text-decoration: underline; }

/* ─── 遊戲：全螢幕場景 ──────────────────────────────── */
#game {
  position: relative;
  min-height: 100dvh;
  padding: 14px clamp(12px, 3vw, 26px) 18px;
}
#game > * { position: relative; z-index: 2; }

.scene {
  position: absolute !important;
  inset: 0;
  z-index: 0 !important;
  overflow: hidden;
  contain: strict;
}

.sky {
  position: absolute; inset: 0;
  background:
    radial-gradient(1px 1px at 8% 22%, #ffffffb0, transparent 60%),
    radial-gradient(1px 1px at 23% 12%, #ffffff7d, transparent 60%),
    radial-gradient(1.5px 1.5px at 36% 30%, #ffffff96, transparent 60%),
    radial-gradient(1px 1px at 52% 10%, #ffffff6e, transparent 60%),
    radial-gradient(1px 1px at 67% 26%, #ffffffa3, transparent 60%),
    radial-gradient(1.5px 1.5px at 81% 15%, #ffffff8a, transparent 60%),
    radial-gradient(1px 1px at 93% 33%, #ffffff78, transparent 60%),
    radial-gradient(1px 1px at 15% 45%, #ffffff5e, transparent 60%),
    radial-gradient(1px 1px at 44% 52%, #ffffff52, transparent 60%),
    radial-gradient(1px 1px at 74% 48%, #ffffff66, transparent 60%),
    linear-gradient(180deg, #02030a 0%, #070d1c 45%, #0c1528 72%, #101b33 100%);
}
/* 地平線的路線色光暈 */
.sky::after {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(120% 55% at 50% 105%, var(--glow-soft), transparent 62%);
}

.moon {
  position: absolute;
  top: 9%; right: 8%;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: #f5f0e1;
  box-shadow: 0 0 34px 10px #f5f0e13d;
  opacity: 0.9;
}

.scene-shake { position: absolute; inset: 0; will-change: transform; }

.layer {
  position: absolute; left: 0;
  display: flex;
  will-change: transform;
}
.layer svg { flex: none; display: block; }

#layerFar { bottom: calc(var(--horizon) + 6px); opacity: 0.9; }
#layerNear { bottom: calc(var(--horizon) - 2px); }
#layerRail { bottom: calc(var(--horizon) - 180px); } /* 條帶高 200，頂緣維持在 horizon+20 */

.train {
  position: absolute;
  left: clamp(16px, 7vw, 90px);
  bottom: calc(var(--horizon) - 6px);
  width: min(330px, 44vw);
  animation: trainBob 1.6s ease-in-out infinite;
  filter: drop-shadow(0 10px 16px #00000080) drop-shadow(0 0 18px var(--glow-soft));
}
.train svg {
  display: block;
  transform: skewX(var(--lean, 0deg));
  transform-origin: 50% 100%;
}
@keyframes trainBob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-2px); }
}

.train .headlight {
  position: absolute;
  right: -86px; bottom: 6px;
  width: 100px; height: 32px;
  background: linear-gradient(90deg, #ffe9a88c, transparent 85%);
  clip-path: polygon(0 35%, 100% 0, 100% 100%, 0 65%);
  opacity: 0.9;
}

/* 對手列車 */
.train.rival {
  /* 近側（對面）軌道：與玩家列車上下錯開，並駕齊驅時兩台都看得見 */
  bottom: calc(var(--horizon) - 96px);
  width: min(310px, 42vw);
  opacity: 0.95;
  filter: drop-shadow(0 8px 12px #00000080) grayscale(0.15);
  will-change: transform;
  animation: none;
  z-index: 2;
}
.train.rival .nametag {
  position: absolute;
  left: 50%; top: -26px;
  transform: translateX(-50%);
  background: color-mix(in srgb, var(--rival) 85%, transparent);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
  padding: 3px 10px;
  border-radius: 99px;
  white-space: nowrap;
  box-shadow: 0 0 14px color-mix(in srgb, var(--rival) 40%, transparent);
}

.speedlines {
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    90deg,
    transparent 0 80px,
    #ffffff1f 80px 82px,
    transparent 82px 190px,
    #ffffff12 190px 192px,
    transparent 192px 300px
  );
  opacity: 0;
  mix-blend-mode: screen;
  will-change: transform, opacity;
}

/* 進站光帶掃過 */
.sweep {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, transparent 30%, #ffffff26 48%, var(--glow-soft) 52%, transparent 70%);
  transform: translateX(-110%);
  pointer-events: none;
}
.sweep.go { animation: sweepGo 700ms var(--ease-out); }
@keyframes sweepGo {
  0% { transform: translateX(-110%); }
  100% { transform: translateX(110%); }
}

.vignette {
  position: absolute; inset: 0;
  background: radial-gradient(120% 90% at 50% 45%, transparent 55%, #01020699 100%);
  pointer-events: none;
}

/* ─── HUD ───────────────────────────────────────────── */
.hud {
  display: flex; align-items: stretch; gap: 10px;
  width: min(1060px, 100%);
  margin: 0 auto 14px;
}

.ghost-btn {
  background: var(--glass);
  border: 1px solid var(--glass-edge);
  color: var(--ink-mute);
  border-radius: var(--radius-s);
  padding: 7px 12px;
  font-size: 13px;
  backdrop-filter: blur(10px);
  transition: color var(--dur-fast), border-color var(--dur-fast);
}
.ghost-btn:hover { color: var(--ink); border-color: var(--ink-dim); }

.icon-btn { display: grid; place-items: center; padding: 7px 10px; }
.icon-btn svg { width: 17px; height: 17px; }
.icon-btn .snd-off { display: none; }
.icon-btn.muted .snd-wave { display: none; }
.icon-btn.muted .snd-off { display: initial; }

.line-chip {
  display: flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 700;
  padding: 0 14px;
  border-radius: var(--radius-s);
  min-width: 0;
}
.line-chip .roundel { width: 26px; height: 26px; font-size: 10px; }
.line-chip .roundel.tra { font-size: 9px; }

.lead-chip {
  display: flex; align-items: center;
  padding: 0 16px;
  border-radius: var(--radius-s);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--ink);
  border-color: var(--glow);
  box-shadow: 0 0 16px var(--glow-soft);
}
.lead-chip.behind {
  color: color-mix(in srgb, var(--rival) 65%, #ffffff);
  border-color: color-mix(in srgb, var(--rival) 40%, transparent);
  box-shadow: 0 0 16px color-mix(in srgb, var(--rival) 18%, transparent);
}

.hud-right {
  margin-left: auto;
  display: flex; align-items: center;
  gap: clamp(12px, 2.6vw, 26px);
  padding: 8px 18px;
  border-radius: var(--radius-m);
}

.gauge { position: relative; width: 88px; }
.gauge svg { display: block; width: 88px; overflow: visible; }
.gauge-track, .gauge-fill {
  fill: none;
  stroke-width: 5;
  stroke-linecap: round;
}
.gauge-track { stroke: var(--bg-edge); }
.gauge-fill {
  stroke: var(--line);
  stroke-dasharray: 88;
  stroke-dashoffset: 88;
  filter: drop-shadow(0 0 6px var(--glow));
}
.gauge-num {
  position: absolute; left: 0; right: 0; bottom: -4px;
  text-align: center;
}
.gauge-num span {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 800;
  font-style: italic;
  font-variant-numeric: tabular-nums;
}
.gauge-num label { display: block; font-size: 8px; letter-spacing: 0.2em; color: var(--ink-dim); }

.stat { text-align: right; }
.stat span {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(16px, 2.4vw, 21px);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 14px var(--glow-soft);
}
.stat label { font-size: 10px; color: var(--ink-dim); letter-spacing: 0.14em; }
.stat.pop span { animation: statPop var(--dur-med) var(--ease-out); }
@keyframes statPop { 40% { transform: scale(1.3); } }

/* ─── 動態路線圖（車廂顯示器風格）──────────────────── */
@keyframes boardArrive {
  0% { transform: translateY(8px); opacity: 0.4; }
  100% { transform: translateY(0); opacity: 1; }
}

.map-panel {
  width: min(1060px, 100%);
  margin: 0 auto;
  border-radius: var(--radius-m);
  border-color: color-mix(in srgb, var(--line) 34%, #ffffff14);
  box-shadow: 0 10px 40px #00000073, 0 0 30px var(--glow-soft);
  padding: 12px 16px 8px;
}

.map-head { display: flex; align-items: center; gap: 10px; min-width: 0; }
.map-head.arrive { animation: boardArrive var(--dur-slow) var(--ease-out); }

.map-roundel {
  flex: none;
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 2.5px solid var(--line);
  display: grid; place-items: center;
  font-weight: 800;
  font-size: 11px;
  letter-spacing: 0.02em;
}
.map-roundel.tra { border-radius: 8px; }

.map-now {
  font-size: clamp(17px, 3vw, 21px);
  font-weight: 800;
  letter-spacing: 0.08em;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.map-dir {
  margin-left: auto;
  flex: none;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-mute);
}

/* 對手位置膠囊：紅點呼應地圖上的對手列車，站名放大打字時一眼看到 */
.map-rival {
  margin-left: auto;
  flex: none;
  display: inline-flex; align-items: center; gap: 7px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.04em;
  white-space: nowrap;
  color: #ffffff;
  background: color-mix(in srgb, var(--rival) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--rival) 50%, transparent);
  box-shadow: 0 0 14px color-mix(in srgb, var(--rival) 22%, transparent);
}
.map-rival:not(.hidden) + .map-dir { margin-left: 0; } /* 膠囊在場時由它撐開右側 */
.map-rival .rv-dot {
  flex: none;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--rival);
  box-shadow: 0 0 8px var(--rival);
  animation: rvPulse 1.6s ease-in-out infinite;
}
.map-rival .rv-name {
  font-size: 11px;
  font-weight: 700;
  color: color-mix(in srgb, var(--rival) 70%, #ffffff);
  max-width: 9em; overflow: hidden; text-overflow: ellipsis;
}
@keyframes rvPulse { 50% { opacity: 0.4; } }

.map-view { position: relative; margin-top: 8px; }
.map-view > svg { display: block; width: 100%; height: auto; } /* 僅離線備援 SVG，勿影響 Leaflet 內部 SVG */

/* Leaflet 真實地圖模式 */
.map-view.leaflet-mode {
  height: clamp(240px, 32vh, 340px);
  border-radius: 10px;
  overflow: hidden;
}
.leaflet-container { background: #0b0f1a; font-family: var(--font-zh); }
.leaflet-container .leaflet-control-attribution {
  background: #0a101ecc;
  color: var(--ink-dim);
  font-size: 9px;
}
.leaflet-container .leaflet-control-attribution a { color: var(--ink-mute); }

.m-tip {
  background: #0a101ed9;
  border: 1px solid #ffffff26;
  color: var(--ink);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 4px 14px #00000073;
}
.m-tip.now { border-color: #ffffff8c; }
.m-tip.next { color: color-mix(in srgb, var(--line) 78%, #ffffff); border-color: var(--glow); }
.leaflet-tooltip-top.m-tip::before { border-top-color: #ffffff26; }

.m-train-icon { background: none; border: none; }
.m-train-icon .chip {
  width: 20px; height: 14px;
  border-radius: 5px;
  background: var(--c);
  border: 2px solid #fff;
  box-shadow: 0 0 12px var(--c);
}
.m-train-icon.rival .chip { width: 16px; height: 11px; box-shadow: 0 0 10px var(--rival); }

.m-line {
  fill: none;
  stroke: #ffffff22;
  stroke-width: 5;
  stroke-linejoin: round;
  stroke-linecap: round;
}
.m-fill {
  fill: none;
  stroke: var(--line);
  stroke-width: 5;
  stroke-linejoin: round;
  stroke-linecap: round;
  filter: drop-shadow(0 0 6px var(--glow-soft));
}

.m-dot {
  fill: var(--bg);
  stroke: #7c8699;
  stroke-width: 2;
  transition: fill var(--dur-med), stroke var(--dur-med);
}
.m-dot.done { fill: var(--line); stroke: var(--line); }
.m-dot.now { fill: #fff; stroke: #fff; filter: drop-shadow(0 0 7px var(--glow)); }

.m-name {
  fill: var(--ink-mute);
  font-size: 11.5px;
  font-weight: 600;
  transition: fill var(--dur-med);
}
.m-name.done { fill: var(--ink-dim); }
.m-name.now { fill: var(--ink); font-weight: 800; }
.m-name.next { fill: color-mix(in srgb, var(--line) 75%, #ffffff); }
.m-name.off { display: none; }

.m-train { filter: drop-shadow(0 0 8px var(--glow)); }
.m-train.rival { filter: drop-shadow(0 0 6px color-mix(in srgb, var(--rival) 55%, transparent)); }

.spacer { flex: 1; min-height: clamp(120px, 22vh, 300px); }
/* 觀戰面板比打字面板高：等待期間縮小中段留白，面板才不會被擠出畫面外 */
#game:has(.wait-panel:not(.hidden)) .spacer { min-height: 20px; }
#game:has(.wait-panel:not(.hidden)) .map-view.leaflet-mode { height: clamp(200px, 26vh, 300px); }

/* ─── 底部 ──────────────────────────────────────────── */
.bottom-ui { width: min(880px, 100%); margin: 0 auto; }

/* ─── 打字區 ─────────────────────────────────────────── */
.typing {
  position: relative;
  margin-top: 10px;
  border-radius: var(--radius-m);
  border-color: color-mix(in srgb, var(--line) 34%, #ffffff14);
  box-shadow: 0 10px 40px #00000073, 0 0 30px var(--glow-soft);
  padding: clamp(14px, 2.6vw, 20px) clamp(16px, 4vw, 28px);
  text-align: center;
  overflow: hidden;
}
.typing.shake { animation: shake var(--dur-med) var(--ease-out); }
@keyframes shake {
  20% { transform: translateX(-6px); }
  45% { transform: translateX(5px); }
  70% { transform: translateX(-2px); }
}

.next-label {
  font-size: 13px;
  color: var(--ink-mute);
  display: flex; align-items: baseline; justify-content: center; gap: 8px;
  flex-wrap: wrap;
}
.next-label b { color: var(--ink); font-size: 17px; letter-spacing: 0.06em; }
.next-en { font-size: 11px; color: var(--ink-dim); letter-spacing: 0.06em; }

.word {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: clamp(22px, 4.8vw, 36px);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.45;
  word-break: break-word;
}
.word .ch { color: var(--ink-dim); transition: color 60ms linear; }
.word .ch.done {
  color: var(--line);
  text-shadow: 0 0 16px var(--glow);
}
.word .ch.cur {
  color: var(--ink);
  border-bottom: 3px solid var(--line);
  animation: caretPulse 1.1s ease-in-out infinite;
}
.word .ch.sp { padding: 0 0.18em; }
.word.zh { letter-spacing: 0.16em; font-size: clamp(24px, 5.2vw, 38px); }
@keyframes caretPulse { 50% { border-color: transparent; } }

.word.err-flash .ch.cur { color: var(--err); border-color: var(--err); }

.type-hint { margin-top: 8px; font-size: 11px; color: var(--ink-dim); }

/* 打字火花 & 連擊浮字 */
.fx-layer { position: absolute; inset: 0; pointer-events: none; }
.spark {
  position: absolute;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--line);
  box-shadow: 0 0 8px var(--glow);
  animation: sparkFly 500ms var(--ease-out) forwards;
}
@keyframes sparkFly {
  0% { opacity: 1; transform: translate(0, 0) scale(1); }
  100% { opacity: 0; transform: translate(var(--dx, 0px), var(--dy, -26px)) scale(0.3); }
}
.combo-float {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 800;
  font-style: italic;
  color: var(--line);
  text-shadow: 0 0 18px var(--glow);
  animation: comboRise 900ms var(--ease-out) forwards;
  white-space: nowrap;
}
@keyframes comboRise {
  0% { opacity: 0; transform: translate(-50%, 8px) scale(0.8); }
  25% { opacity: 1; transform: translate(-50%, -6px) scale(1.15); }
  100% { opacity: 0; transform: translate(-50%, -42px) scale(1); }
}
/* 中打選錯字：把送出的錯字紅字飄出，玩家才知道打到了什麼 */
.combo-float.err {
  color: var(--err);
  font-style: normal;
  font-size: 26px;
  text-shadow: 0 0 14px #ff475f66;
}

/* ─── 彩帶（成就感擔當）───────────────────────────── */
.fx-screen {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 25;
}
.confetti {
  position: absolute;
  width: 7px;
  height: 12px;
  border-radius: 1.5px;
  will-change: transform;
  opacity: 0;
}
/* 抵站小噴發：先上拋再飄落 */
.confetti.pop { animation: confettiPop 1.1s cubic-bezier(0.2, 0.6, 0.4, 1) forwards; }
/* 完賽彩帶雨：從天而降 */
.confetti.rain { animation: confettiRain 2.4s linear forwards; }
@keyframes confettiPop {
  0% { transform: translate3d(0, 0, 0) rotateZ(0) rotateX(0); opacity: 1; }
  30% { transform: translate3d(calc(var(--dx, 0px) * 0.55), var(--up, -60px), 0) rotateZ(calc(var(--rz, 360deg) * 0.4)) rotateX(300deg); opacity: 1; }
  100% { transform: translate3d(var(--dx, 0px), var(--down, 160px), 0) rotateZ(var(--rz, 360deg)) rotateX(900deg); opacity: 0; }
}
@keyframes confettiRain {
  0% { transform: translate3d(0, 0, 0) rotateZ(0) rotateX(0); opacity: 1; }
  85% { opacity: 1; }
  100% { transform: translate3d(var(--dx, 0px), 105vh, 0) rotateZ(var(--rz, 720deg)) rotateX(1200deg); opacity: 0; }
}

/* ─── 好友對戰：先衝線者的觀戰等待面板 ─────────────── */
.wait-panel {
  margin-top: 10px;
  border-radius: var(--radius-m);
  border-color: color-mix(in srgb, var(--line) 34%, #ffffff14);
  box-shadow: 0 10px 40px #00000073, 0 0 30px var(--glow-soft);
  padding: clamp(14px, 2.6vw, 20px) clamp(16px, 4vw, 28px);
  text-align: center;
}
.wait-title { font-size: 18px; font-weight: 800; letter-spacing: 0.08em; }
.wait-sub { margin-top: 6px; font-size: 13px; color: var(--ink-mute); }
.wait-hint { margin-top: 8px; font-size: 11px; color: var(--ink-dim); }
.settle-btn { margin-top: 10px; font-size: 12px; }

/* 對手 live 打字視圖：對手色系，跟自己的打字面板做出區隔 */
.spec-live {
  margin-top: 12px;
  padding: 10px 14px 12px;
  border-radius: var(--radius-s);
  background: color-mix(in srgb, var(--rival) 7%, transparent);
  border: 1px solid color-mix(in srgb, var(--rival) 25%, transparent);
}
.spec-next { font-size: 12px; color: var(--ink-mute); }
.spec-next b { color: var(--ink); font-size: 15px; letter-spacing: 0.06em; margin: 0 6px 0 2px; }
.spec-kpm {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: color-mix(in srgb, var(--rival) 70%, #ffffff);
}
.spec-word {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: clamp(17px, 3.4vw, 24px);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.45;
  word-break: break-word;
}
.spec-word.zh { letter-spacing: 0.16em; }
.spec-word .ch { color: var(--ink-dim); }
.spec-word .ch.done {
  color: color-mix(in srgb, var(--rival) 75%, #ffffff);
  text-shadow: 0 0 12px color-mix(in srgb, var(--rival) 45%, transparent);
}
.spec-word .ch.cur {
  color: var(--ink);
  border-bottom: 2px solid var(--rival);
  animation: caretPulse 1.1s ease-in-out infinite;
}
.spec-word .ch.sp { padding: 0 0.18em; }

.emoji-row { margin-top: 12px; display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; }
.emoji-btn {
  font-size: 24px;
  line-height: 1;
  padding: 8px 12px;
  border-radius: var(--radius-s);
  border: 1px solid var(--glass-edge);
  background: var(--glass);
  cursor: pointer;
  transition: transform 120ms var(--ease-out), border-color 120ms;
}
.emoji-btn:hover { transform: translateY(-3px) scale(1.12); border-color: var(--glow); }
.emoji-btn.sent { animation: emojiSent 400ms var(--ease-out); }
@keyframes emojiSent { 30% { transform: scale(1.35) rotate(-8deg); } }

/* 表情禮物：全屏由下往上漂（直播禮物感）。接收方大顆一串，發送方小顆幾枚當回饋 */
.emoji-float {
  position: absolute;
  bottom: -70px;
  font-size: 44px;
  opacity: 0;
  will-change: transform;
  animation: emojiRise 3s ease-in forwards;
  filter: drop-shadow(0 6px 18px #000000cc);
}
.emoji-float.mine { font-size: 26px; }
@keyframes emojiRise {
  0% { opacity: 0; transform: translate3d(0, 0, 0) scale(calc(var(--s, 1) * 0.6)) rotate(0deg); }
  8% { opacity: 1; transform: translate3d(calc(var(--dx, 0px) * 0.08), -8vh, 0) scale(var(--s, 1)) rotate(calc(var(--rot, 0deg) * 0.2)); }
  55% { opacity: 1; transform: translate3d(calc(var(--dx, 0px) * 0.6), -55vh, 0) scale(var(--s, 1)) rotate(calc(var(--rot, 0deg) * 0.7)); }
  85% { opacity: 0.9; }
  100% { opacity: 0; transform: translate3d(var(--dx, 0px), calc(-100vh - 90px), 0) scale(var(--s, 1)) rotate(var(--rot, 0deg)); }
}

.ime-warn, .pk-toast {
  position: fixed;
  left: 50%; bottom: 26px;
  transform: translateX(-50%);
  background: var(--err);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: 99px;
  box-shadow: 0 8px 24px #00000073;
  animation: boardArrive var(--dur-med) var(--ease-out);
  z-index: 20;
  white-space: nowrap;
}
.pk-toast.info { background: var(--bg-raise); border: 1px solid var(--bg-edge); color: var(--ink); }

/* ─── 倒數 ───────────────────────────────────────────── */
.countdown {
  position: fixed !important; /* 蓋過 #game > * 的 position: relative，避免佔版面把排版撐開 */
  inset: 0;
  z-index: 15 !important;
  display: grid; place-items: center;
  font-family: var(--font-mono);
  font-size: clamp(80px, 18vw, 150px);
  font-weight: 800;
  font-style: italic;
  color: var(--ink);
  text-shadow: 0 0 44px var(--glow), 0 0 12px var(--glow);
  pointer-events: none;
}
.countdown.tick { animation: countTick 700ms var(--ease-out); }
@keyframes countTick {
  0% { opacity: 0; transform: scale(1.7); }
  30% { opacity: 1; transform: scale(1); }
  85% { opacity: 1; }
  100% { opacity: 0; }
}

/* ─── 結算 ───────────────────────────────────────────── */
.overlay {
  position: fixed; inset: 0;
  background: #02030add;
  backdrop-filter: blur(8px);
  display: grid; place-items: center;
  padding: 20px;
  z-index: 10;
}

.result-card {
  width: min(440px, 100%);
  background: var(--bg-raise);
  border: 1px solid var(--bg-edge);
  border-top: 5px solid var(--line);
  border-radius: var(--radius-l);
  box-shadow: 0 30px 80px #000000b3, 0 0 60px var(--glow-soft);
  padding: 30px 28px;
  text-align: center;
  animation: cardIn var(--dur-slow) var(--ease-out);
}
@keyframes cardIn {
  0% { transform: translateY(26px) scale(0.96); opacity: 0; }
  100% { transform: translateY(0) scale(1); opacity: 1; }
}

.result-eyebrow { font-size: 11px; letter-spacing: 0.3em; color: var(--ink-dim); }
.result-card h2 {
  margin-top: 10px;
  font-size: clamp(34px, 8vw, 44px);
  font-weight: 800;
  letter-spacing: 0.1em;
  text-shadow: 0 0 30px var(--glow);
}
.result-card h2.lose { text-shadow: 0 0 30px #ff475f66; }
.result-line { margin-top: 6px; font-size: 13px; color: var(--ink-mute); }

.result-grid {
  margin-top: 22px;
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.r-stat span {
  display: block;
  font-family: var(--font-mono);
  font-size: 18px; font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.r-stat label { font-size: 10px; color: var(--ink-dim); }

.result-score {
  margin-top: 20px;
  padding: 14px 0;
  border-top: 1px dashed var(--bg-edge);
  border-bottom: 1px dashed var(--bg-edge);
}
.result-score label { display: block; font-size: 10px; letter-spacing: 0.3em; color: var(--ink-dim); }
.result-score span {
  font-family: var(--font-mono);
  font-size: 42px; font-weight: 800;
  color: var(--line);
  text-shadow: 0 0 26px var(--glow);
  font-variant-numeric: tabular-nums;
}

.result-best { margin-top: 10px; font-size: 13px; font-weight: 700; color: var(--line); }

/* 文字輸入框（成績暱稱、對戰暱稱、車次號共用） */
.ti {
  background: #0b0f1a;
  border: 1px solid var(--bg-edge);
  color: var(--ink);
  border-radius: var(--radius-s);
  padding: 9px 12px;
  font-size: 14px;
  font-family: inherit;
  min-width: 0;
}
.ti:focus { outline: none; border-color: var(--line); }
.ti::placeholder { color: var(--ink-dim); }

/* 成績上傳與排行榜 */
.upload-row { margin-top: 16px; display: flex; gap: 8px; justify-content: center; }
.upload-row .ti { flex: 1; max-width: 190px; }

.board { margin-top: 14px; }
.board-title, .board-hint {
  text-align: center;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ink-dim);
  margin-bottom: 6px;
}
.board-hint { margin: 10px 0 4px; }
.board-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 10px;
  border-radius: 8px;
  font-size: 13px;
  text-align: left;
}
.board-row:nth-child(even) { background: #ffffff08; }
.board-row b { width: 18px; flex: none; text-align: right; font-family: var(--font-mono); color: var(--ink-mute); }
.board-row.top1 b { color: var(--line); }
.b-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.b-kpm { flex: none; font-size: 11px; color: var(--ink-dim); }
.b-score { flex: none; font-family: var(--font-mono); font-weight: 700; }

.result-actions { margin-top: 22px; display: flex; gap: 10px; justify-content: center; }
.primary-btn {
  background: var(--line);
  color: var(--line-ink);
  border: none;
  border-radius: var(--radius-s);
  padding: 11px 22px;
  font-size: 15px; font-weight: 700;
  box-shadow: 0 0 22px var(--glow-soft);
  transition: transform var(--dur-fast) var(--ease-out), filter var(--dur-fast);
}
.primary-btn:hover { transform: translateY(-1px); filter: brightness(1.12); }
.primary-btn:active { transform: translateY(0); }

/* ─── 好友對戰（車次房間）───────────────────────────── */
/* 選線畫面：好友對戰設定列 */
/* 好友對戰設定卡：玻璃卡片 + 步驟引導，切到此模式時彈入 */
.pk-setup {
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  width: min(400px, 94%);
  margin: 0 auto;
  padding: 16px 18px 13px;
  background: var(--glass);
  border: 1px solid var(--glass-edge);
  border-radius: var(--radius-m);
  backdrop-filter: blur(10px);
  box-shadow: 0 10px 34px #00000055, 0 0 26px #ffffff17;
  animation: pkSetupIn 0.32s var(--ease-out);
}
@keyframes pkSetupIn {
  from { opacity: 0; transform: translateY(-8px) scale(0.97); }
}
.pk-step { display: flex; align-items: center; gap: 10px; }
.step-no {
  flex: none;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--ink);
  color: #10141f;
  font-size: 12px;
  font-weight: 800;
  display: inline-grid; place-items: center;
}
.pk-hint .step-no { margin-right: 8px; vertical-align: -4px; }
.pk-setup .ti { width: 200px; text-align: center; font-size: 15px; }
.pk-hint { font-size: 13px; color: var(--ink-mute); }
.pk-hint b { color: var(--ink); }
.pk-arrow {
  display: inline-block;
  margin-left: 7px;
  font-size: 11px;
  color: var(--ink);
  animation: pkArrow 1.4s ease-in-out infinite;
}
@keyframes pkArrow { 50% { transform: translateY(4px); } }
.join-by-code {
  font-size: 12px;
  color: var(--ink-mute);
  background: none;
  border: none;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--dur-fast);
}
.join-by-code:hover { color: var(--ink); }
.pk-code-row { display: flex; gap: 8px; }
.pk-code-row .ti { width: 120px; text-align: center; font-family: var(--font-mono); }

/* 等待呼吸提示（等待上車…／等待發車…／對手想再戰！） */
@keyframes waitPulse { 50% { opacity: 0.35; } }

/* 月台等待室 / 乘車邀請卡（疊在 result-card 之上） */
.pk-card .train-no {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: clamp(44px, 9vw, 58px);
  font-weight: 800;
  font-style: italic;
  letter-spacing: 0.06em;
  line-height: 1.15;
  text-shadow: 0 0 44px var(--glow), 0 0 12px var(--glow);
  font-variant-numeric: tabular-nums;
}
.pk-card .train-no small {
  display: block;
  margin-bottom: 2px;
  font-size: 13px;
  font-style: normal;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--ink-dim);
}
.pk-card.expired { border-top-color: var(--ink-dim); box-shadow: 0 30px 80px #000000b3; }
.pk-card.expired .train-no { color: var(--ink-dim); text-shadow: none; }

.card-lineinfo {
  margin-top: 6px;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 13px;
  color: var(--ink-mute);
}
.pk-card .roundel { width: 26px; height: 26px; font-size: 10px; }
.pk-card .roundel.tra { font-size: 9px; }
.pk-invite-line { margin-top: 16px; font-size: 13px; color: var(--ink-mute); }
.pk-invite-line b { color: var(--ink); }

/* 月台雙軌：車粒沿用路線圖列車圖標語彙 */
.platform { margin-top: 22px; display: grid; gap: 14px; }
.track {
  position: relative;
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px;
  background: #0b0f1a;
  border: 1px solid var(--bg-edge);
  border-radius: var(--radius-m);
  text-align: left;
}
.track::before { /* 軌道虛線 */
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 9px;
  height: 2px;
  background: repeating-linear-gradient(90deg, #ffffff1f 0 14px, transparent 14px 22px);
  border-radius: 2px;
}
.train-chip {
  flex: none;
  width: 34px; height: 22px;
  border-radius: 7px;
  background: var(--line);
  border: 2px solid #fff;
  box-shadow: 0 0 14px var(--glow);
}
.track.rival .train-chip {
  background: var(--rival);
  box-shadow: 0 0 12px color-mix(in srgb, var(--rival) 60%, transparent);
}
.track.empty .train-chip {
  background: none;
  border: 2px dashed var(--ink-dim);
  box-shadow: none;
}
.track-body { flex: 1; min-width: 0; }
.track-name {
  display: block;
  font-size: 15px; font-weight: 700;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.track-name .role {
  margin-left: 6px;
  font-size: 10px; font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--line);
  border: 1px solid var(--glow);
  border-radius: 99px;
  padding: 1px 7px;
  vertical-align: 2px;
}
.track.rival .track-name .role {
  color: var(--rival);
  border-color: color-mix(in srgb, var(--rival) 45%, transparent);
}
.track-status { display: block; font-size: 11.5px; color: var(--ink-dim); }
.track-status.aboard { color: color-mix(in srgb, var(--line) 70%, #ffffff); font-weight: 700; }
.track.rival .track-status.aboard { color: color-mix(in srgb, var(--rival) 75%, #ffffff); }
.track.empty .track-status { animation: waitPulse 1.6s ease-in-out infinite; }
.track.arrive { animation: boardArrive var(--dur-slow) var(--ease-out); }

/* 邀請連結列 */
.invite-row { margin-top: 18px; display: flex; gap: 8px; }
.invite-row .ti { flex: 1; font-family: var(--font-mono); font-size: 12px; color: var(--ink-mute); }
.ghost-btn.copied { color: color-mix(in srgb, var(--line) 75%, #ffffff); border-color: var(--glow); }

.pk-card .primary-btn { width: 100%; margin-top: 18px; }
.pk-card .ghost-btn.wide { width: 100%; margin-top: 10px; padding: 10px 12px; }
.pk-card .ti.wide { width: 100%; margin-top: 16px; text-align: center; }
.primary-btn:disabled { opacity: 0.42; cursor: not-allowed; box-shadow: none; transform: none; }

.guest-wait {
  margin-top: 18px;
  font-size: 13px; font-weight: 700;
  color: var(--ink-mute);
  animation: waitPulse 1.6s ease-in-out infinite;
}
.card-foot { margin-top: 12px; font-size: 11px; color: var(--ink-dim); }

/* 結算卡：再戰提示 */
.rematch-note {
  margin-top: 14px;
  font-size: 12px; font-weight: 700;
  color: color-mix(in srgb, var(--rival) 75%, #ffffff);
  animation: waitPulse 1.6s ease-in-out infinite;
}

/* 隱形輸入框：接收鍵盤（含行動裝置） */
#ghostInput {
  position: fixed;
  opacity: 0;
  pointer-events: none;
  left: 0; bottom: 0;
  width: 1px; height: 1px;
  border: none;
}
/* 中打模式：現形在打字面板內——組字、選字過程看得見，選字窗也會出現在視線附近 */
#ghostInput.zh {
  position: static;
  display: block;
  opacity: 1;
  pointer-events: auto;
  width: min(360px, 82%);
  height: 46px;
  margin: 12px auto 2px;
  background: #0d1322d9;
  border: 1px solid color-mix(in srgb, var(--line) 42%, #ffffff1f);
  border-radius: 12px;
  text-align: center;
  font-family: inherit;
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  caret-color: var(--line);
  outline: none;
}
#ghostInput.zh:focus { box-shadow: 0 0 22px var(--glow-soft); border-color: var(--line); }
#ghostInput.zh::placeholder { color: var(--ink-dim); font-size: 14px; font-weight: 600; }

/* ─── Reduced motion ─────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .speedlines, .spark, .combo-float, .sweep { display: none; }
  /* 表情是溝通訊息，不能藏：靜態顯示在畫面中上，由 JS 移除 */
  .emoji-float { animation: none !important; opacity: 1; bottom: auto; top: 28%; }
}

/* ─── 小螢幕 ─────────────────────────────────────────── */
@media (max-width: 480px) {
  :root { --horizon: clamp(240px, 40vh, 330px); }
  .hud { flex-wrap: wrap; }
  .hud-right { padding: 6px 12px; gap: 10px; }
  .gauge { width: 64px; }
  .gauge svg { width: 64px; }
  .gauge-num span { font-size: 13px; }
  .result-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }

  /* 手機重排：題目緊接地圖下方（鍵盤打開也看得到），風景退為純背景；
     地圖彈性高度——鍵盤收起時自動放大，彈出時壓縮讓位給題目 */
  #game { height: var(--vvh, 100dvh); min-height: var(--vvh, 100dvh); }
  .spacer { display: none; }
  .map-panel { display: flex; flex-direction: column; flex: 1; min-height: 0; }
  .map-view { flex: 1; min-height: 0; }
  .map-view.leaflet-mode { height: auto; min-height: 120px; }
  .bottom-ui { margin-top: 10px; }

  /* 對手位置膠囊：窄螢幕縮小、只留站名（對手只有一個，名字可省） */
  .map-rival { font-size: 13px; padding: 3px 9px; gap: 5px; }
  .map-rival .rv-dot { width: 7px; height: 7px; }
  .map-rival .rv-name { display: none; }

  /* 觀戰等待面板：小螢幕收緊間距，全部塞進一屏 */
  .wait-panel { padding: 10px 12px 12px; }
  .wait-title { font-size: 15px; }
  .spec-live { margin-top: 8px; padding: 8px 10px 10px; }
  .spec-word { font-size: 16px; }
  .emoji-row { margin-top: 8px; gap: 8px; }
  .emoji-btn { font-size: 20px; padding: 6px 10px; }
  .wait-hint { display: none; }
  .settle-btn { margin-top: 8px; }

  /* 鍵盤打開（kb-open）：精簡非必要 UI，把空間留給地圖與題目 */
  body.kb-open .hud-right,
  body.kb-open .lead-chip,
  body.kb-open .type-hint { display: none; }
  body.kb-open #game { padding-top: 8px; }
  body.kb-open .word { font-size: 24px; }
  body.kb-open .word.zh { font-size: 26px; }
}