:root {
  --bg: #0c1020;
  --panel: #151a2f;
  --panel2: #1b2140;
  --text: #f5f7ff;
  --muted: #aab2d5;
  --accent: #7c5cff;
  --accent2: #00d4ff;
  --danger: #ff4d6d;
  --gold: #ffd166;
  --green: #2cff8f;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 10%, rgba(124, 92, 255, .22), transparent 28%),
    radial-gradient(circle at 80% 0%, rgba(0, 212, 255, .18), transparent 25%),
    var(--bg);
  color: var(--text);
  font-family: Arial, sans-serif;
}

.app {
  width: min(1180px, calc(100% - 28px));
  margin: 0 auto;
  padding: 24px 0 40px;
}

.hero {
  display: flex;
  gap: 20px;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent2);
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: 12px;
}

h1 {
  margin: 0;
  font-size: clamp(30px, 5vw, 54px);
}

.subtitle {
  max-width: 720px;
  color: var(--muted);
  line-height: 1.5;
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.btn {
  border: 1px solid rgba(255,255,255,.15);
  background: var(--panel2);
  color: var(--text);
  padding: 12px 16px;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 700;
}

.btn:hover, .mobile-controls button:hover {
  transform: translateY(-1px);
  filter: brightness(1.1);
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border: 0;
}

.layout {
  display: grid;
  grid-template-columns: 310px 1fr;
  gap: 18px;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.card {
  background: rgba(21, 26, 47, .88);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 18px;
  padding: 18px;
  box-shadow: 0 20px 60px rgba(0,0,0,.22);
}

.card h2 {
  margin: 0 0 14px;
  font-size: 19px;
}

.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.stats div {
  background: rgba(255,255,255,.06);
  border-radius: 14px;
  padding: 12px;
}

.stats span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 6px;
}

.stats strong { font-size: 24px; }

.legend p {
  margin: 10px 0;
  color: var(--muted);
}

.dot {
  display: inline-block;
  width: 14px;
  height: 14px;
  border-radius: 4px;
  margin-right: 8px;
  vertical-align: -2px;
}

.player { background: var(--green); }
.key { background: var(--gold); }
.exit { background: var(--accent2); }
.coin { background: #ff9f1c; }
.trap { background: var(--danger); }
.bonus { background: #b8ff5c; }

.game-area { min-width: 0; }

canvas {
  display: block;
  width: 100%;
  max-width: 720px;
  aspect-ratio: 1 / 1;
  height: auto;
  margin: 0 auto;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.16);
  background: #03040a;
  box-shadow: 0 30px 80px rgba(0,0,0,.35);
}

.message {
  max-width: 720px;
  margin: 12px auto 0;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 14px;
  padding: 12px 14px;
  color: var(--gold);
  min-height: 46px;
}

.mobile-controls {
  display: none;
  max-width: 280px;
  margin: 16px auto 0;
  text-align: center;
}

.mobile-controls button {
  width: 72px;
  height: 56px;
  border: 0;
  margin: 4px;
  border-radius: 14px;
  background: var(--panel2);
  color: var(--text);
  font-size: 24px;
  font-weight: 800;
}

.leaderboard { margin-top: 18px; }

#records {
  margin: 0;
  padding-left: 22px;
  color: var(--muted);
}

#records li { margin: 6px 0; }

@media (max-width: 860px) {
  .hero {
    align-items: flex-start;
    flex-direction: column;
  }

  .layout { grid-template-columns: 1fr; }

  .sidebar { order: 2; }

  .game-area { order: 1; }

  .mobile-controls { display: block; }
}