/* ============================================================
   踏云行 · 水墨跳山 — 宣纸水墨 × 朱砂印章 UI
   ============================================================ */
:root {
  --paper: #f6f1e3;
  --paper2: #efe8d4;
  --ink: #33323a;
  --ink-soft: #6b6770;
  --vermilion: #c2453c;
  --gold: #b8860b;
}

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

html, body { height: 100%; }

body {
  font-family: 'Noto Sans SC', 'Noto Serif SC', system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1200px 800px at 20% 10%, rgba(255, 250, 235, 0.9), transparent 60%),
    radial-gradient(900px 700px at 85% 90%, rgba(235, 224, 200, 0.7), transparent 55%),
    linear-gradient(160deg, #f7f2e4, #efe8d2 60%, #eae2ca);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
}

#app { width: min(96vw, 1000px); }

#stage { position: relative; border-radius: 24px; }

#game {
  display: block;
  width: 100%;
  aspect-ratio: 24 / 16;
  border-radius: 24px;
  background: #f5f0e2;
  border: 1px solid rgba(90, 80, 60, 0.25);
  box-shadow:
    0 40px 90px rgba(60, 50, 30, 0.35),
    inset 0 0 120px rgba(190, 170, 130, 0.25);
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
  cursor: pointer;
}

/* ---------------- 浮层（宣纸玻璃） ---------------- */
.overlay {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  border-radius: 24px;
  background: rgba(250, 246, 236, 0.72);
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
  transition: opacity 0.35s ease;
}
.overlay.hidden { opacity: 0; pointer-events: none; }

#menu {
  background: linear-gradient(180deg, rgba(250, 246, 236, 0.5), rgba(245, 239, 224, 0.78));
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}

.seal-mark {
  font-family: 'ZCOOL KuaiLe', 'Noto Serif SC', serif;
  font-size: 1.05rem;
  letter-spacing: 0.1em;
  color: #fdf6ec;
  background: var(--vermilion);
  padding: 8px 12px;
  border-radius: 10px;
  box-shadow: 0 4px 14px rgba(194, 69, 60, 0.4), inset 0 0 0 3px rgba(253, 246, 236, 0.35);
  transform: rotate(-4deg);
}

.title {
  font-family: 'ZCOOL KuaiLe', 'Noto Serif SC', serif;
  font-weight: 400;
  letter-spacing: 0.12em;
  line-height: 1.2;
  text-align: center;
  font-size: clamp(2.4rem, 7vw, 4.2rem);
  color: var(--ink);
  text-shadow: 2px 3px 0 rgba(0, 0, 0, 0.06);
}
.title::after {
  content: '⛰';
  display: block;
  font-size: 0.5em;
  margin-top: -6px;
  opacity: 0.7;
}

.subtitle {
  color: var(--ink-soft);
  letter-spacing: 0.42em;
  font-size: 0.78rem;
  text-transform: uppercase;
  text-indent: 0.42em;
}

.menu-best { color: var(--ink-soft); font-size: 0.85rem; letter-spacing: 0.14em; }
.menu-best b { font-family: 'Orbitron', monospace; color: var(--vermilion); font-size: 1.15rem; margin: 0 0.25em; }
.menu-best span { font-size: 0.75rem; }

/* ---------------- 按钮（墨色） ---------------- */
.btn {
  font-family: inherit;
  font-size: 1.02rem;
  letter-spacing: 0.3em;
  text-indent: 0.3em;
  padding: 14px 44px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  color: #fdf6ec;
  background: linear-gradient(135deg, #3a3942, #26252c);
  box-shadow: 0 10px 26px rgba(40, 38, 45, 0.35);
  transition: transform 0.25s, box-shadow 0.25s, background 0.3s;
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(40, 38, 45, 0.45);
  background: linear-gradient(135deg, #c2453c, #a12f28);
}
.btn:active { transform: translateY(0) scale(0.97); }
.btn.ghost { background: transparent; border: 1.5px solid rgba(51, 50, 58, 0.45); color: var(--ink); box-shadow: none; }
.btn.ghost:hover { background: transparent; border-color: var(--vermilion); color: var(--vermilion); box-shadow: 0 0 18px rgba(194, 69, 60, 0.2); }

/* ---------------- 提示 ---------------- */
.hint {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  color: var(--ink-soft);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}
kbd {
  font-family: 'Orbitron', monospace;
  padding: 3px 8px;
  border-radius: 8px;
  background: rgba(51, 50, 58, 0.07);
  border: 1px solid rgba(51, 50, 58, 0.25);
  border-bottom-width: 3px;
  font-size: 0.68rem;
  color: var(--ink);
}

/* ---------------- HUD ---------------- */
#hud {
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 5;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 16px 20px;
  pointer-events: none;
}
.hud-group { display: flex; gap: 10px; align-items: center; }
.stat { display: flex; flex-direction: column; }
.stat .label { font-size: 0.6rem; letter-spacing: 0.3em; color: var(--ink-soft); }
.stat .value b {
  font-family: 'Orbitron', monospace;
  font-size: clamp(1.1rem, 3vw, 1.55rem);
  font-weight: 700;
  color: var(--ink);
}
.stat .value i { font-style: normal; font-size: 0.7rem; color: var(--ink-soft); margin-left: 4px; }
.stat.right { align-items: flex-end; }
.stat .value.pop b { animation: pop 0.35s ease; }
@keyframes pop { 50% { transform: scale(1.28); color: var(--vermilion); } }

.chip {
  font-family: 'Noto Serif SC', serif;
  padding: 6px 13px;
  border-radius: 999px;
  background: rgba(255, 253, 246, 0.6);
  border: 1px solid rgba(90, 80, 60, 0.25);
  font-size: 0.78rem;
  color: var(--ink);
  letter-spacing: 0.1em;
}

.back-chip {
  pointer-events: auto;
  padding: 6px 13px;
  border-radius: 999px;
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--ink);
  text-decoration: none;
  background: rgba(255, 253, 246, 0.6);
  border: 1px solid rgba(90, 80, 60, 0.25);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  transition: 0.2s;
  white-space: nowrap;
}
.back-chip:hover { border-color: var(--vermilion); color: var(--vermilion); box-shadow: 0 0 14px rgba(194, 69, 60, 0.25); }

.icon-btn {
  pointer-events: auto;
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(90, 80, 60, 0.25);
  background: rgba(255, 253, 246, 0.6);
  color: var(--ink);
  font-size: 0.95rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.2s;
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
}
.icon-btn:hover { border-color: var(--vermilion); box-shadow: 0 0 14px rgba(194, 69, 60, 0.22); transform: translateY(-1px); }
.icon-btn:active { transform: scale(0.94); }

/* ---------------- 结算 ---------------- */
.final-score b {
  font-family: 'Orbitron', monospace;
  font-size: clamp(2.6rem, 9vw, 4.4rem);
  font-weight: 900;
  line-height: 1;
  color: var(--ink);
  text-shadow: 0 0 24px rgba(194, 69, 60, 0.25);
}
.final-score span { font-size: 1rem; color: var(--ink-soft); margin-left: 6px; }
.badge {
  font-size: 0.78rem;
  letter-spacing: 0.24em;
  padding: 6px 18px;
  border-radius: 999px;
  color: var(--vermilion);
  border: 1px solid rgba(194, 69, 60, 0.5);
  background: rgba(194, 69, 60, 0.08);
  box-shadow: 0 0 18px rgba(194, 69, 60, 0.25);
  animation: bob 1.6s ease-in-out infinite;
}
@keyframes bob { 50% { transform: translateY(-4px); } }

/* ---------------- 提示条 ---------------- */
#toast {
  position: absolute;
  top: 72px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 12;
  padding: 10px 24px;
  border-radius: 999px;
  font-size: 0.88rem;
  letter-spacing: 0.1em;
  white-space: nowrap;
  color: var(--ink);
  background: rgba(255, 253, 246, 0.85);
  border: 1px solid rgba(90, 80, 60, 0.25);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgba(60, 50, 30, 0.2);
  transition: opacity 0.4s, transform 0.4s;
}
#toast.hidden { opacity: 0; transform: translate(-50%, -12px); pointer-events: none; }

/* ---------------- 入场动效 ---------------- */
.overlay.enter .title,
.overlay.enter .subtitle,
.overlay.enter .final-score,
.overlay.enter .badge,
.overlay.enter .menu-best,
.overlay.enter .seal-mark,
.overlay.enter .hint,
.overlay.enter .btn {
  animation: rise 0.55s cubic-bezier(0.2, 0.8, 0.3, 1) both;
}
.overlay.enter .seal-mark { animation-delay: 0.03s; }
.overlay.enter .subtitle { animation-delay: 0.08s; }
.overlay.enter .menu-best { animation-delay: 0.13s; }
.overlay.enter .btn { animation-delay: 0.2s; }
.overlay.enter .hint { animation-delay: 0.28s; }
.overlay.enter .final-score { animation-delay: 0.05s; }
.overlay.enter .badge { animation-delay: 0.18s; }
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }

footer {
  text-align: center;
  margin-top: 14px;
  color: rgba(90, 80, 60, 0.5);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
}

/* ---------------- 移动端 ---------------- */
@media (max-width: 560px) {
  body { padding: 10px; }
  #hud { padding: 10px 12px; }
  .icon-btn { width: 32px; height: 32px; font-size: 0.82rem; }
  .chip { display: none; }
  .btn { padding: 12px 34px; font-size: 0.92rem; }
  .overlay { gap: 12px; }
  #toast { top: 58px; }
}