/* Shared by the home page and every game page: the Sky color theme and the
   "← All games" link back to the main page. */
:root {
  --bg: #f2f8ff;
  --bg-glow: #dcebff;
  --panel: #ffffff;
  --line: #d6e4f5;
  --text: #0f2340;
  --muted: #53698a;
  --accent: #0369a1;
  --accent-hover: #0284c7;
  --on-accent: #ffffff;
  --highlight: #b45309;
  --preview: #e8f3ff;
  --preview-alt: #dcebff;
}

.game-nav {
  width: min(100%, 480px);
  display: flex;
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--on-accent);
  font: 600 16px/1 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(15, 35, 64, 0.15);
}
.back-link:hover { background: var(--accent-hover); }
.back-link:focus-visible { outline: 3px solid var(--text); outline-offset: 2px; }