* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --yellow: #FFD93D;
  --red: #EF4444;
  --blue: #3B82F6;
  --green: #22C55E;
  --dark: #1E293B;
  --dark-2: #0F172A;
  --white: #fff;
  --bg: #F1F5F9;
  --text: #0F172A;
  --muted: #64748B;
  --radius: 16px;
  --shadow: 0 4px 0 rgba(0,0,0,0.10), 0 8px 20px rgba(0,0,0,0.08);
}

html, body { min-height: 100%; }
body {
  font-family: 'Segoe UI', 'Nunito', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-tap-highlight-color: transparent;
  overflow-x: hidden;
  overscroll-behavior-y: contain;
}
button, select { font: inherit; }
button:focus-visible, select:focus-visible, [role="button"]:focus-visible {
  outline: 3px solid #0f172a;
  outline-offset: 3px;
}

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--yellow);
  padding: 12px 24px;
  display: flex; justify-content: space-between; align-items: center;
  box-shadow: 0 4px 0 rgba(0,0,0,0.10);
}
.logo { display: flex; align-items: center; gap: 12px; cursor: pointer; user-select: none; }
.logo-brick {
  display: flex; gap: 6px; padding: 6px;
  background: var(--red); border-radius: 8px;
  box-shadow: 0 3px 0 rgba(0,0,0,0.20);
}
.stud {
  width: 14px; height: 14px; border-radius: 50%;
  background: rgba(255,255,255,0.85);
  box-shadow: inset 0 -2px 0 rgba(0,0,0,0.20);
}
.logo-text { font-size: 26px; font-weight: 900; color: var(--dark); letter-spacing: 1px; }
.logo-hub { color: var(--red); }
.icon-btn {
  background: rgba(255,255,255,0.65); border: none; border-radius: 50%;
  width: 44px; height: 44px; font-size: 20px; cursor: pointer;
  transition: transform .15s, background .15s;
  box-shadow: 0 3px 0 rgba(0,0,0,0.15);
}
.icon-btn:hover { background: #fff; transform: translateY(-2px); }
.icon-btn:active { transform: translateY(1px); box-shadow: 0 1px 0 rgba(0,0,0,0.15); }

/* Views */
main { padding: 24px; max-width: 1200px; margin: 0 auto; }
.view { display: none; }
.view.active { display: block; animation: fadeIn .35s ease; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Hero */
.hero { text-align: center; padding: 30px 20px 40px; }
.hero h1 {
  font-size: clamp(28px, 5vw, 48px); font-weight: 900;
  margin-bottom: 12px; line-height: 1.15; color: var(--dark);
}
.hero h1 .accent {
  background: linear-gradient(135deg, var(--red), var(--blue));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p { font-size: clamp(15px, 2vw, 18px); color: var(--muted); max-width: 640px; margin: 0 auto; }

/* Cards */
.games-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px; padding: 20px 0 60px;
}
.game-card {
  background: var(--white); border-radius: var(--radius); padding: 22px;
  cursor: pointer; position: relative; display: flex; flex-direction: column;
  overflow: hidden; box-shadow: var(--shadow);
  border-top: 6px solid var(--card-color, var(--yellow));
  transition: transform .2s, box-shadow .2s;
}
.game-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 0 rgba(0,0,0,0.10), 0 16px 32px rgba(0,0,0,0.12);
}
.game-card:active { transform: translateY(-1px); }
.card-visual {
  height: 120px; margin-bottom: 16px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--card-color), var(--card-accent));
}
.card-visual::before {
  content: ''; position: absolute; inset: 0;
  background-image: radial-gradient(circle at 20px 20px, rgba(255,255,255,0.30) 6px, transparent 7px);
  background-size: 40px 40px; background-position: center;
  opacity: 0.85; pointer-events: none;
}
.card-icon { position: relative; z-index: 1; font-size: 52px; filter: drop-shadow(0 4px 6px rgba(0,0,0,0.25)); }
.card-icon-text { font-weight: 900; font-size: 44px; color: #fff; letter-spacing: 2px; text-shadow: 0 4px 0 rgba(0,0,0,0.25); }
.game-card h3 { font-size: 22px; font-weight: 800; margin-bottom: 8px; color: var(--dark); }
.game-card p { color: var(--muted); font-size: 14px; flex: 1; margin-bottom: 16px; }
.card-footer { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.best { font-size: 13px; color: var(--muted); }
.best b { color: var(--dark); font-size: 16px; }
.play-btn {
  background: var(--dark); color: #fff; border: none; padding: 10px 22px;
  border-radius: 10px; font-weight: 700; font-size: 15px; cursor: pointer;
  transition: transform .12s, background .15s; box-shadow: 0 3px 0 rgba(0,0,0,0.30);
}
.play-btn:hover { background: var(--red); }
.play-btn:active { transform: translateY(2px); box-shadow: 0 1px 0 rgba(0,0,0,0.30); }

/* Game view */
.game-view { padding-bottom: 40px; }
.back-btn {
  background: var(--dark); color: #fff; border: none; padding: 10px 18px;
  border-radius: 10px; font-weight: 700; cursor: pointer; margin-bottom: 20px;
  transition: transform .12s, background .15s; box-shadow: 0 3px 0 rgba(0,0,0,0.30);
}
.back-btn:hover { background: var(--red); }
.back-btn:active { transform: translateY(2px); box-shadow: 0 1px 0 rgba(0,0,0,0.30); }
.game-header { margin-bottom: 20px; }
.game-header h2 { font-size: clamp(26px, 4vw, 36px); font-weight: 900; margin-bottom: 14px; color: var(--dark); }
.game-toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.stat-box {
  background: #fff; padding: 8px 16px; border-radius: 10px;
  box-shadow: 0 3px 0 rgba(0,0,0,0.08);
  display: flex; flex-direction: column; min-width: 80px;
}
.stat-box span { font-size: 11px; color: var(--muted); text-transform: uppercase; font-weight: 600; letter-spacing: .5px; }
.stat-box b { font-size: 18px; color: var(--dark); }
.btn {
  border: none; padding: 10px 20px; border-radius: 10px; font-weight: 700;
  font-size: 15px; cursor: pointer; transition: transform .12s, background .15s;
  box-shadow: 0 3px 0 rgba(0,0,0,0.20);
}
.btn-primary { background: var(--yellow); color: var(--dark); }
.btn-primary:hover { background: #ffca0a; }
.btn:active { transform: translateY(2px); box-shadow: 0 1px 0 rgba(0,0,0,0.20); }
.select {
  padding: 10px 14px; border: none; border-radius: 10px; background: #fff;
  font-size: 14px; font-weight: 600; box-shadow: 0 3px 0 rgba(0,0,0,0.08); cursor: pointer;
}
.hint { text-align: center; color: var(--muted); font-size: 13px; margin-top: 16px; }
.canvas-wrap { display: flex; justify-content: center; margin: 10px 0; }
canvas { border-radius: 16px; box-shadow: var(--shadow); max-width: 100%; display: block; touch-action: none; }

@media (max-width: 600px) {
  .site-header { padding: 10px 14px; }
  .logo-text { font-size: 20px; }
  .logo-brick { padding: 4px; }
  .stud { width: 10px; height: 10px; }
  main { padding: 16px; }
  .hero { padding: 20px 10px 30px; }
  .games-grid { grid-template-columns: 1fr; gap: 16px; }
  .game-toolbar { gap: 8px; }
  .stat-box { padding: 6px 12px; min-width: 70px; }
  .stat-box b { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}