*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --bg: #0f1419;
  --surface: #1a2332;
  --surface-hover: #243044;
  --text: #e8edf4;
  --muted: #8b9cb3;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --success: #22c55e;
  --danger: #ef4444;
  --gold: #fbbf24;
  --radius: 16px;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background:
    radial-gradient(ellipse at top, #1e293b 0%, var(--bg) 60%),
    var(--bg);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.app {
  width: min(980px, 100%);
  text-align: center;
}

.stats {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 28px;
  padding: 16px 20px;
  background: var(--surface);
  border: 1px solid #334155;
  border-radius: var(--radius);
}

.stats-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1 1 0;
  min-width: 0;
}

.stats-value {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--gold);
}

.stats-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  white-space: nowrap;
}

.stats-divider {
  flex-shrink: 0;
  width: 1px;
  height: 40px;
  background: #334155;
}

.header h1 {
  margin: 0 0 8px;
  font-size: clamp(1.75rem, 5vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.header h1 .title-link {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: #475569;
  text-underline-offset: 0.15em;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

.header h1 .title-link:hover {
  color: var(--gold);
  text-decoration-color: var(--gold);
}

.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.message {
  margin: 32px 0 24px;
  padding: 16px 20px;
  background: var(--surface);
  border-radius: var(--radius);
  font-size: 1.05rem;
  line-height: 1.5;
  min-height: 3.5em;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stage {
  display: flex;
  gap: clamp(12px, 4vw, 24px);
  justify-content: center;
  align-items: flex-end;
  min-height: 220px;
  margin-bottom: 32px;
  padding: 24px 12px 8px;
  perspective: 1000px;
  background:
    radial-gradient(ellipse 80% 40% at 50% 100%, rgba(255, 255, 255, 0.04), transparent 70%),
    linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, 0.25) 100%);
  border-radius: var(--radius);
}

.cup {
  position: relative;
  flex: 1;
  max-width: 160px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0 0 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  transition: transform 0.25s ease;
  transform-style: preserve-3d;
}

.cup::before {
  content: "";
  position: absolute;
  bottom: 42px;
  left: 50%;
  width: 78%;
  height: 14px;
  transform: translateX(-50%) rotateX(72deg);
  background: radial-gradient(ellipse, rgba(0, 0, 0, 0.55) 0%, transparent 72%);
  pointer-events: none;
  transition:
    opacity 0.3s ease,
    transform 0.3s ease;
}

.cup:not(:disabled):hover {
  transform: translateY(-8px);
}

.cup:not(:disabled):hover::before {
  transform: translateX(-50%) rotateX(72deg) scale(0.92);
  opacity: 0.75;
}

.cup:not(:disabled):hover .cup-body {
  transform: rotateX(-10deg) translateY(-2px);
}

.cup.auto-picking .cup-body {
  transform: rotateX(-6deg) scale(1.08);
  box-shadow:
    inset -14px 0 22px rgba(0, 0, 0, 0.42),
    inset 10px 0 18px rgba(255, 255, 255, 0.1),
    inset 0 26px 32px rgba(0, 0, 0, 0.38),
    0 0 0 3px var(--gold),
    0 0 20px rgba(251, 191, 36, 0.4),
    0 20px 32px rgba(0, 0, 0, 0.5);
}

.cup:disabled {
  cursor: default;
}

.cup-body {
  position: relative;
  width: 100%;
  aspect-ratio: 0.82 / 1;
  transform-style: preserve-3d;
  transform: rotateX(-6deg);
  background:
    linear-gradient(
      90deg,
      #7f1d1d 0%,
      #b91c1c 16%,
      #ef4444 34%,
      #fecaca 48%,
      #f87171 58%,
      #dc2626 78%,
      #991b1b 100%
    );
  border-radius: 52% 52% 16% 16% / 48% 48% 12% 12%;
  box-shadow:
    inset -14px 0 22px rgba(0, 0, 0, 0.42),
    inset 10px 0 18px rgba(255, 255, 255, 0.1),
    inset 0 26px 32px rgba(0, 0, 0, 0.38),
    inset 0 -10px 16px rgba(255, 255, 255, 0.12),
    0 18px 28px rgba(0, 0, 0, 0.45),
    0 6px 10px rgba(0, 0, 0, 0.35);
  transition:
    transform 0.35s ease,
    opacity 0.3s ease,
    filter 0.3s ease,
    box-shadow 0.3s ease;
}

.cup-body::before {
  content: "";
  position: absolute;
  top: auto;
  bottom: -3%;
  left: 50%;
  z-index: 3;
  width: 96%;
  height: 20%;
  transform: translateX(-50%);
  border-radius: 50%;
  background:
    radial-gradient(
      ellipse at center,
      #450a0a 0%,
      #7f1d1d 30%,
      #b91c1c 55%,
      #fca5a5 72%,
      #b91c1c 88%,
      #7f1d1d 100%
    );
  box-shadow:
    inset 0 -6px 14px rgba(0, 0, 0, 0.65),
    inset 0 3px 6px rgba(255, 255, 255, 0.15),
    0 3px 8px rgba(0, 0, 0, 0.35);
}

.cup-body::after {
  content: "";
  position: absolute;
  top: 10%;
  left: 24%;
  z-index: 2;
  width: 20%;
  height: 24%;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.55) 0%,
    rgba(255, 255, 255, 0.15) 45%,
    transparent 100%
  );
  filter: blur(0.5px);
  pointer-events: none;
}

.cup.selected .cup-body {
  transform: rotateX(-6deg) scale(1.03);
  box-shadow:
    inset -14px 0 22px rgba(0, 0, 0, 0.42),
    inset 10px 0 18px rgba(255, 255, 255, 0.1),
    inset 0 26px 32px rgba(0, 0, 0, 0.38),
    0 0 0 3px var(--gold),
    0 0 24px rgba(251, 191, 36, 0.35),
    0 20px 32px rgba(0, 0, 0, 0.5);
}

.cup.removed .cup-body {
  filter: grayscale(0.85) brightness(0.7);
  transform: rotateX(18deg) scale(0.82) translateY(-16px);
  opacity: 0.45;
}

.cup.removed::before {
  opacity: 0.25;
  transform: translateX(-50%) rotateX(72deg) scale(0.7);
}

.cup.removed .cup-reveal {
  height: 72px;
  opacity: 1;
  color: var(--muted);
}

.cup.revealed .cup-body {
  transform: rotateX(-24deg) translateY(-56px);
  opacity: 0.18;
}

.cup.revealed::before {
  opacity: 0.15;
}

.cup-label {
  position: relative;
  z-index: 2;
  margin-top: 10px;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
}

.cup-reveal {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 0;
  font-size: 2rem;
  line-height: 1;
  opacity: 0;
  overflow: visible;
  transition:
    height 0.35s ease,
    opacity 0.4s ease 0.2s;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.5));
}

.cup.revealed .cup-reveal {
  height: 72px;
  opacity: 1;
}

.cup-reveal.ball {
  width: 64px;
  height: 64px;
  flex-shrink: 0;
  border-radius: 50%;
  background:
    radial-gradient(
      circle at 30% 24%,
      #fecaca 0%,
      #ef4444 32%,
      #dc2626 58%,
      #991b1b 82%,
      #7f1d1d 100%
    );
  box-shadow:
    inset -8px -10px 16px rgba(127, 29, 29, 0.55),
    inset 6px 6px 10px rgba(255, 255, 255, 0.28),
    0 8px 18px rgba(0, 0, 0, 0.5);
}

.cup.winner .cup-reveal.ball {
  filter: drop-shadow(0 0 14px rgba(239, 68, 68, 0.75));
}

.actions {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}

.action-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 12px 24px;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition:
    background 0.2s ease,
    transform 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn.auto-choice {
  transform: translateY(-2px) scale(1.03);
  box-shadow:
    0 0 0 3px var(--gold),
    0 0 18px rgba(251, 191, 36, 0.35);
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-choice {
  background: var(--surface);
  color: var(--text);
  border: 1px solid #334155;
}

.btn-choice:hover {
  background: var(--surface-hover);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid #334155;
}

.btn-secondary:hover {
  background: var(--surface-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid #334155;
}

.btn-ghost:hover {
  color: var(--text);
  background: var(--surface);
}

.footer-actions {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid #334155;
}

.btn-simulate {
  width: 100%;
  background: var(--surface);
  color: var(--text);
  border: 1px solid #334155;
}

.btn-simulate:hover:not(:disabled) {
  background: var(--surface-hover);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.result {
  padding: 16px 20px;
  border-radius: var(--radius);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.result.win {
  background: rgba(34, 197, 94, 0.15);
  color: var(--success);
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.result.lose {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.hidden {
  display: none !important;
}

.github-link {
  position: fixed;
  right: 24px;
  bottom: 40px;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid #334155;
  border-radius: 12px;
  transition:
    color 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease,
    transform 0.15s ease;
}

.github-link:hover {
  color: var(--text);
  background: var(--surface-hover);
  border-color: #475569;
  transform: translateY(-2px);
}

.github-link svg {
  width: 24px;
  height: 24px;
}

.app.auto-playing .cup,
.app.auto-playing .cup-body,
.app.auto-playing .cup-reveal,
.app.auto-playing .cup::before,
.app.auto-playing .btn {
  transition-duration: 0.1s !important;
}

@media (max-width: 820px) {
  .stats {
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px 20px;
  }

  .stats-item {
    flex: 0 1 auto;
  }
}

@media (max-width: 420px) {
  .action-buttons {
    flex-direction: column;
  }

  .action-buttons .btn {
    width: 100%;
  }
}