/* Guitar Buddha — Strata Palette (Cool blue-grey) */
:root {
  --ch-900:#1e2124; --ch-800:#2a2d32; --ch-700:#3d4449;
  --ch-600:#4f565c; --ch-500:#6d7278; --ch-400:#8a9199; --ch-300:#d4c4b0;
  --ru-500:#b8643e; --ru-400:#d07d56; --ru-600:#8d4a28;
  --cr-100:#e8dfd0; --cr-200:#d4c4b0; --cr-400:#8a9199;

  /* Typography */
  --f-b: 'DM Sans', -apple-system, system-ui, sans-serif;
  --f-m: 'DM Mono', 'SF Mono', monospace;
  --f-d: 'Bricolage Grotesque', -apple-system, system-ui, sans-serif;
  --f-h: 'Caveat', cursive;

  /* Accents */
  --accent-cool: #5a8fa8;
  --accent-success: #6b9d7a;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.15);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.25);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.35);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.5);

  /* Glass */
  --glass-1: rgba(79,86,92,0.45);
  --glass-2: rgba(79,86,92,0.25);
  --glass-3: rgba(79,86,92,0.15);
  --glass-bg: rgba(42,45,50,0.90);
  --glass-bg-strong: rgba(42,45,50,0.92);

  /* Gradients */
  --bg-gradient: linear-gradient(165deg, #3d4449 0%, #2a2d32 40%, #35393e 100%);
  --accent-gradient: linear-gradient(90deg, #b8643e, #8a9199, #d07d56);

  /* SVG stroke color for diagrams */
  --diagram-stroke: #6d7278;
  --diagram-nut: #d4c4b0;
  --diagram-dot: #b8643e;
  --diagram-tone: #eae0cd;
}