:root {
  --bg: #f6fafc;
  --ink: #0f172a;
  --muted: #64748b;
  --accent: #0ea5e9;
  --ground: #94a3b8;
  --tanuja: #ec4899;
  --rickshaw: #22c55e;
  --barrier: #f97316;
  --dog: #8b5cf6;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  background: linear-gradient(180deg, #ffffff, var(--bg));
  color: var(--ink);
}

.game-root {
  max-width: 960px;
  margin: 0 auto;
  padding: 12px;
  display: grid;
  gap: 8px;
}

.hud {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.score { font-weight: 600; }
.progress { display: flex; align-items: center; gap: 10px; min-width: 220px; }
.progress-label { color: var(--muted); font-size: 12px; }
.progress-bar { position: relative; flex: 1; height: 10px; background: #e2e8f0; border-radius: 999px; overflow: hidden; }
.progress-fill { position: absolute; inset: 0 auto 0 0; height: 100%; background: linear-gradient(90deg, #22c55e, #0ea5e9); width: 0%; }

/* removed sound toggle */

canvas#gameCanvas {
  width: 100%;
  height: auto;
  border-radius: 12px;
  background: #eaf2f8;
  box-shadow: 0 1px 2px rgba(2, 8, 23, 0.06), 0 8px 24px rgba(2, 8, 23, 0.06);
}

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(255, 255, 255, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
}

.overlay-card {
  width: min(92vw, 520px);
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 24px;
  text-align: center;
  box-shadow: 0 8px 32px rgba(2, 8, 23, 0.08);
}

.title { margin: 0 0 6px; font-size: 28px; }
.subtitle { margin: 0 0 14px; color: var(--muted); }
.help { margin: 0 0 18px; padding-left: 18px; text-align: left; color: var(--muted); }

.primary-btn {
  appearance: none;
  border: none;
  background: var(--accent);
  color: white;
  border-radius: 10px;
  padding: 10px 16px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(14, 165, 233, 0.4);
}

/* Mobile friendly adjustments */
@media (max-width: 640px) {
  .title { font-size: 22px; }
  .subtitle { font-size: 14px; }
}