:root {
  --shell-glass: rgba(255, 255, 255, 0.02);
  --shell-glass-strong: rgba(255, 255, 255, 0.04);
  --shell-border: rgba(255, 255, 255, 0.08);
  --shell-border-strong: rgba(255, 255, 255, 0.12);
  --shell-text-muted: rgba(255, 255, 255, 0.6);
}

html,
body {
  touch-action: manipulation;
}

body,
body * {
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}

input,
textarea,
[contenteditable="true"] {
  -webkit-user-select: text;
  user-select: text;
}

.shell-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 0.75rem 1rem;
  backdrop-filter: blur(18px);
}

.shell-nav .inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.shell-page {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
}

.game-touch {
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}

.game-touch * {
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
}

@media (max-width: 899px) {
  footer {
    display: none;
  }
}

.shell-badge {
  display: inline-flex;
  gap: 0.35rem;
  align-items: center;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--shell-border-strong);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-weight: 600;
}

.shell-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.shell-stat-card {
  background: rgba(0, 0, 0, 0.5);
  border-radius: 20px;
  padding: 0.85rem 1rem;
  text-align: center;
  box-shadow: 0 0 24px rgba(0, 0, 0, 0.35);
  border: 1px solid var(--shell-border);
}

.shell-stat-card small {
  display: block;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--shell-text-muted);
}

.shell-stat-card .value {
  font-size: 1.8rem;
  font-family: 'JetBrains Mono', monospace;
  margin-top: 0.35rem;
}

.shell-glass {
  background: var(--shell-glass);
  border-radius: 24px;
  border: 1px solid var(--shell-border);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.45);
}

.shell-glass-strong {
  background: var(--shell-glass-strong);
  border-radius: 24px;
  border: 1px solid var(--shell-border-strong);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.45);
}

.shell-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 20px;
  gap: 0.4rem;
  text-align: center;
}

.shell-overlay.hidden {
  display: none;
}

.shell-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-bottom: 0.75rem;
}

.shell-btn {
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.75rem 1.25rem;
  background: rgba(255, 255, 255, 0.04);
  color: #f0fff8;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.shell-btn.primary {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04));
  color: #0b0f1a;
}

.shell-modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 15;
  background: rgba(0, 0, 0, 0.85);
  padding: 1rem;
  backdrop-filter: blur(18px);
}

.shell-modal.show {
  display: flex;
}

.shell-hidden {
  display: none !important;
}

.leaderboard-name {
  font-weight: 600;
  letter-spacing: 0.02em;
}

.leaderboard-name.rank-1 {
  color: #f6d27f;
}

.leaderboard-name.rank-2 {
  color: #cbd5e1;
}

.leaderboard-name.rank-3 {
  color: #d6a16a;
}

.leaderboard-ellipsis {
  justify-content: center;
  color: rgba(148, 163, 184, 0.7);
  letter-spacing: 0.2em;
  font-weight: 600;
}

.celebrate-target {
  transform-origin: center;
}

.celebrate-animate {
  animation: celebratePulse 1.2s ease-in-out 0s 2;
  filter: drop-shadow(0 0 22px rgba(255, 226, 150, 0.7));
  will-change: transform, filter;
}

@keyframes celebratePulse {
  0% {
    transform: scale(1);
    filter: drop-shadow(0 0 0 rgba(255, 226, 150, 0));
  }
  30% {
    transform: scale(1.08);
    filter: drop-shadow(0 0 24px rgba(255, 226, 150, 0.8));
  }
  55% {
    transform: scale(0.96);
    filter: drop-shadow(0 0 14px rgba(255, 226, 150, 0.45));
  }
  85% {
    transform: scale(1.1);
    filter: drop-shadow(0 0 26px rgba(255, 226, 150, 0.85));
  }
  100% {
    transform: scale(1);
    filter: drop-shadow(0 0 0 rgba(255, 226, 150, 0));
  }
}

.shell-confetti {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 200;
  overflow: hidden;
}

.shell-confetti-piece {
  position: absolute;
  top: -16px;
  left: var(--x);
  width: var(--w);
  height: var(--h);
  opacity: var(--o);
  border-radius: 999px;
  transform: translate3d(0, 0, 0) rotate(var(--rot));
  animation: confettiFall var(--dur) cubic-bezier(0.25, 0.46, 0.45, 0.94) var(--delay) forwards;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.25);
}

@keyframes confettiFall {
  0% {
    transform: translate3d(0, -20px, 0) rotate(var(--rot));
  }
  100% {
    transform: translate3d(var(--dx), 110vh, 0) rotate(calc(var(--rot) + 360deg));
  }
}

@media (prefers-reduced-motion: reduce) {
  .celebrate-animate {
    animation: none;
  }
  .shell-confetti-piece {
    animation: none;
  }
}