:root {
  --bg: #140d08;
  --bg-2: #1d1209;
  --gold: #e8b86d;
  --gold-soft: #f3d9a4;
  --wood: #a85f2c;
  --text: #f4e7d6;
  --muted: #b39a7f;
  --line: rgba(232, 184, 109, 0.16);
  --card: rgba(255, 236, 208, 0.05);
  --danger: #ff8f7a;
  --radius: 18px;
  --safe-b: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; }

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

body {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(1100px 600px at 50% -10%, #3a1f0d 0%, transparent 62%),
    radial-gradient(800px 500px at 90% 100%, #2a1608 0%, transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  color: var(--text);
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  padding-bottom: calc(18px + var(--safe-b));
}

.glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(420px 300px at 50% 42%, rgba(232, 184, 109, 0.10), transparent 70%);
  z-index: 0;
}

.topbar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: min(920px, 100%);
  margin: 0 auto;
  padding: 18px 20px 6px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 11px;
  background: linear-gradient(145deg, #c98240, #6b3413);
  border: 1px solid rgba(243, 217, 164, 0.35);
  color: #2a1206;
  font-size: 17px;
  font-weight: 800;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-btn, .chip {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text);
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
}

.icon-btn {
  width: 38px;
  height: 38px;
  font-size: 16px;
  display: grid;
  place-items: center;
}

.icon-btn[aria-pressed="false"] .sound-on,
.icon-btn[aria-pressed="true"] .sound-off { display: none; }

.chip {
  height: 38px;
  padding: 0 16px;
  font-size: 13px;
  font-family: inherit;
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.icon-btn:hover, .chip:hover { border-color: rgba(232, 184, 109, 0.42); background: rgba(255, 236, 208, 0.09); }
.icon-btn:active, .chip:active { transform: scale(0.96); }

.stage {
  position: relative;
  z-index: 1;
  flex: 1;
  width: min(920px, 100%);
  margin: 0 auto;
  padding: 10px 20px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  width: min(560px, 100%);
  margin: 10px auto 4px;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 14px 8px 12px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 236, 208, 0.07), rgba(255, 236, 208, 0.02));
  border-radius: 16px;
  backdrop-filter: blur(6px);
}

.stat-label {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.stat-value {
  font-size: clamp(22px, 6vw, 30px);
  font-variant-numeric: tabular-nums;
  color: var(--gold-soft);
  text-shadow: 0 0 22px rgba(232, 184, 109, 0.28);
  line-height: 1;
}

.muyu-wrap {
  position: relative;
  display: grid;
  place-items: center;
  width: min(480px, 92vw);
  aspect-ratio: 320 / 260;
  margin: clamp(12px, 3vh, 34px) auto clamp(4px, 1.5vh, 16px);
  isolation: isolate;
}

.muyu {
  appearance: none;
  border: 0;
  padding: 0;
  margin: 0;
  width: 100%;
  height: 100%;
  background: transparent;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  filter: drop-shadow(0 26px 34px rgba(0, 0, 0, 0.45));
  transition: transform 0.12s ease;
  z-index: 2;
}

.muyu:focus-visible { outline: 3px solid rgba(232, 184, 109, 0.7); outline-offset: 8px; border-radius: 40%; }

.muyu-svg {
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
}

.muyu.hit .muyu-svg { animation: knock 0.19s cubic-bezier(0.2, 0.9, 0.3, 1.3); }

@keyframes knock {
  0% { transform: scale(1) translateY(0); }
  34% { transform: scale(0.94, 0.905) translateY(11px); }
  70% { transform: scale(1.012, 0.99) translateY(-2px); }
  100% { transform: scale(1) translateY(0); }
}

.muyu-wrap.impact { animation: shake 0.18s ease-out; }

@keyframes shake {
  0%, 100% { transform: translate(0, 0); }
  25% { transform: translate(-3px, 3px); }
  50% { transform: translate(3px, -2px); }
  75% { transform: translate(-2px, 1px); }
}

.muyu-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 77% 31%, rgba(243, 217, 164, 0.55), transparent 42%);
  opacity: 0;
  z-index: 0;
  pointer-events: none;
  filter: blur(10px);
}

.muyu-wrap.impact::before { animation: flash 0.3s ease-out; }

@keyframes flash {
  0% { opacity: 0.9; transform: scale(0.82); }
  100% { opacity: 0; transform: scale(1.3); }
}

.mallet {
  position: absolute;
  top: 1%;
  right: 12%;
  width: 25%;
  transform-origin: 60% 10%;
  transform: rotate(-8deg);
  pointer-events: none;
  z-index: 4;
  filter: drop-shadow(0 8px 12px rgba(0, 0, 0, 0.35));
}

.mallet svg { width: 100%; height: auto; display: block; }

.mallet.swing { animation: swing 0.19s cubic-bezier(0.2, 0.8, 0.3, 1); }

@keyframes swing {
  0% { transform: rotate(-8deg); }
  46% { transform: rotate(16deg); }
  100% { transform: rotate(-8deg); }
}

.ripple-layer, .float-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: visible;
  z-index: 3;
}

.float-layer { z-index: 5; }

.ripple {
  position: absolute;
  left: 71%;
  top: 37%;
  width: 44px;
  height: 44px;
  margin: -22px 0 0 -22px;
  border-radius: 50%;
  border: 3px solid rgba(243, 217, 164, 0.85);
  box-shadow: 0 0 18px rgba(243, 217, 164, 0.35);
  animation: ripple 0.6s ease-out forwards;
}

.ripple.delay { animation-delay: 0.07s; border-width: 2px; }

@keyframes ripple {
  to { transform: scale(4.6); opacity: 0; }
}

.float-merit {
  position: absolute;
  left: 58%;
  top: 28%;
  font-size: 24px;
  font-weight: 800;
  color: var(--gold-soft);
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
  animation: floatUp 0.9s ease-out forwards;
  white-space: nowrap;
}

@keyframes floatUp {
  0% { transform: translate(-50%, 0) scale(0.6); opacity: 0; }
  16% { transform: translate(-50%, -10px) scale(1.25); opacity: 1; }
  100% { transform: translate(-50%, -104px) scale(1); opacity: 0; }
}

.combo {
  height: 22px;
  margin: 2px 0 0;
  color: var(--gold);
  font-size: 14px;
  letter-spacing: 0.1em;
  opacity: 0;
  transition: opacity 0.2s;
}

.combo.show { opacity: 1; }

.hint {
  margin: 10px 0 6px;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-align: center;
}

kbd {
  font-family: inherit;
  font-size: 12px;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: 1px 6px;
  color: var(--text);
  background: rgba(255, 236, 208, 0.06);
}

.note {
  margin: 12px auto 0;
  padding: 10px 14px;
  border: 1px dashed rgba(232, 184, 109, 0.3);
  border-radius: 12px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.link-btn {
  appearance: none;
  border: 0;
  background: none;
  padding: 0;
  font: inherit;
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}

.footer {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 26px 20px 10px;
  color: rgba(179, 154, 127, 0.75);
  font-size: 12px;
  text-align: center;
  flex-wrap: wrap;
}

.footer a { color: inherit; text-underline-offset: 3px; }

.modal[hidden] { display: none; }

.modal {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 20px;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 4, 1, 0.66);
  backdrop-filter: blur(3px);
  animation: fade 0.2s ease;
}

.modal-card {
  position: relative;
  width: min(420px, 100%);
  padding: 26px 24px 22px;
  border-radius: 22px;
  border: 1px solid rgba(232, 184, 109, 0.22);
  background: linear-gradient(180deg, #241509, #180e06);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
  animation: pop 0.22s ease;
}

@keyframes fade { from { opacity: 0; } }
@keyframes pop { from { opacity: 0; transform: translateY(10px) scale(0.98); } }

.modal-close {
  position: absolute;
  top: 10px;
  right: 12px;
  width: 34px;
  height: 34px;
  border: 0;
  background: none;
  color: var(--muted);
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  border-radius: 10px;
}

.modal-close:hover { color: var(--text); background: rgba(255, 236, 208, 0.07); }

.modal h2 {
  margin: 0 0 8px;
  font-size: 22px;
  letter-spacing: 0.04em;
}

.modal-sub {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.modal-fine {
  margin: 14px 0 0;
  color: rgba(179, 154, 127, 0.85);
  font-size: 12px;
  line-height: 1.6;
}

.field {
  display: block;
  margin-bottom: 14px;
}

.field span {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.field input {
  width: 100%;
  height: 48px;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid rgba(232, 184, 109, 0.22);
  background: rgba(0, 0, 0, 0.28);
  color: var(--text);
  font: inherit;
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.field input::placeholder { color: rgba(179, 154, 127, 0.5); }

.field input:focus {
  border-color: rgba(232, 184, 109, 0.65);
  box-shadow: 0 0 0 3px rgba(232, 184, 109, 0.12);
}

.primary, .ghost {
  width: 100%;
  height: 48px;
  border-radius: 12px;
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: transform 0.15s, filter 0.2s, background 0.2s;
}

.primary {
  border: 0;
  background: linear-gradient(180deg, #ecc27f, #c98a45);
  color: #2a1206;
  box-shadow: 0 10px 24px rgba(201, 138, 69, 0.28);
}

.primary:hover { filter: brightness(1.06); }
.primary:active { transform: scale(0.985); }
.primary:disabled { opacity: 0.6; cursor: wait; }

.ghost {
  margin-top: 6px;
  border: 1px solid var(--line);
  background: rgba(255, 236, 208, 0.05);
  color: var(--text);
}

.ghost:hover { background: rgba(255, 236, 208, 0.1); }

.error {
  margin: 12px 0 0;
  color: var(--danger);
  font-size: 13px;
  line-height: 1.6;
}

.user-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 18px 0 8px;
}

.user-stats div {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 236, 208, 0.04);
  color: var(--muted);
  font-size: 12px;
}

.user-stats strong {
  color: var(--gold-soft);
  font-size: 20px;
  font-variant-numeric: tabular-nums;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(28px + var(--safe-b));
  transform: translate(-50%, 16px);
  z-index: 30;
  padding: 11px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(36, 21, 9, 0.95);
  color: var(--text);
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  max-width: min(90vw, 420px);
  text-align: center;
}

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

@media (max-width: 420px) {
  .topbar { padding: 14px 16px 4px; }
  .stage { padding: 8px 16px 0; }
  .brand { font-size: 15px; }
  .stat { padding: 11px 6px 10px; border-radius: 14px; }
  .stat-label { font-size: 11px; }
  .chip { max-width: 150px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}