/* ─── Global Base Settings ─── */
:root {
  /* Typography */
  --font-sans: 'Inter Variable', system-ui, -apple-system, sans-serif;
  --font-display: 'Space Grotesk Variable', 'Inter Variable', sans-serif;

  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 24px var(--accent-glow);

  /* Transitions */
  --transition-fast: 120ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 350ms ease;

  /* Layout */
  --sidebar-width: 220px;
  --player-height: 88px;

  /* Room reserved inside a horizontal card rail's clip box so an outer card
     shadow has somewhere to paint. A rail scrolls, so it must clip (its
     `overflow-x: auto` makes `overflow-y` compute to `auto`), and a drop shadow
     would otherwise be cut off at the edges. Raise this in a theme that uses a
     larger shadow or glow — never override `overflow` on the rail itself, which
     would remove its scrollability and disable its nav arrows. */
  --rail-shadow-room: 8px;
}

