:root {
  --bg: #0d0f1a;
  --bg-2: #151829;
  --card: #1b1f35;
  --card-hover: #232847;
  --text: #eef0ff;
  --muted: #9aa0c3;
  --accent: #ffcc33;
  --accent-2: #5ce1e6;
  --danger: #ff5c7a;
  --radius: 14px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(1200px 600px at 50% -200px, #1d2350 0%, var(--bg) 60%) fixed, var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

a { color: var(--accent-2); }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  max-width: 1100px;
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.2px;
}

.brand-mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), #ff8a3d);
  display: grid;
  place-items: center;
  color: #1a1300;
  font-size: 0.95rem;
}

.topbar nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 16px;
  font-size: 0.95rem;
}
.topbar nav a:hover { color: var(--text); }

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px 48px;
}

.hero { padding: 24px 0 8px; }
.hero h1 { font-size: clamp(1.8rem, 5vw, 2.8rem); margin: 0 0 6px; line-height: 1.15; }
.hero p { color: var(--muted); margin: 0; max-width: 620px; }

.section-title { font-size: 1.15rem; margin: 28px 0 12px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.card {
  display: block;
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: transform 0.15s ease, background 0.15s ease;
}
.card:hover { transform: translateY(-3px); background: var(--card-hover); }

.thumb {
  aspect-ratio: 16 / 10;
  display: grid;
  place-items: center;
  font-size: 3.2rem;
}

.card-body { padding: 12px 14px 14px; }
.card-body h3 { margin: 0 0 4px; font-size: 1.05rem; }
.card-body p { margin: 0; color: var(--muted); font-size: 0.9rem; }
.tag {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(92, 225, 230, 0.12);
  color: var(--accent-2);
}

.ad-slot {
  margin: 16px 0;
  min-height: 90px;
  border: 1px dashed rgba(255, 255, 255, 0.15);
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* Game pages */
.game-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.game-head h1 { margin: 8px 0; font-size: clamp(1.5rem, 4vw, 2.1rem); }
.score-line { color: var(--muted); font-variant-numeric: tabular-nums; }
.score-line b { color: var(--accent); }

.stage {
  position: relative;
  margin: 0 auto;
  width: 100%;
  border-radius: var(--radius);
  overflow: hidden;
  background: #080a13;
  border: 1px solid rgba(255, 255, 255, 0.08);
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}
.stage canvas { display: block; width: 100%; height: 100%; }

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
  background: rgba(8, 10, 19, 0.78);
  backdrop-filter: blur(2px);
}
.overlay[hidden] { display: none; }
.overlay h2 { margin: 0 0 8px; font-size: 1.8rem; }
.overlay p { margin: 0 0 18px; color: var(--muted); max-width: 320px; }

.btn {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 12px 28px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  background: var(--accent);
  color: #1a1300;
}
.btn:hover { filter: brightness(1.08); }
.btn:focus-visible { outline: 3px solid var(--accent-2); outline-offset: 3px; }

.controls { color: var(--muted); font-size: 0.9rem; text-align: center; margin: 10px 0 0; }

.about {
  background: var(--bg-2);
  border-radius: var(--radius);
  padding: 4px 20px 16px;
  margin-top: 24px;
}
.about h2 { font-size: 1.1rem; }
.about p, .about li { color: var(--muted); }

footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 16px 40px;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
footer a { color: var(--muted); margin-right: 14px; }

.prose { max-width: 720px; }
.prose p, .prose li { color: var(--muted); }

@media (max-width: 520px) {
  .topbar nav a { margin-left: 10px; }
  .grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .thumb { font-size: 2.4rem; }
  .card-body p { display: none; }
}