:root {
  --bg: #fffdf8;
  --text: #2b2118;
  --muted: #7b6a58; /* warm sand */
  --border: #efe7dc;
  --card: #fffbf3;
  --brand: #2b2118;
  --accent: #734f2f;
  --link: #2b2118;
  --radius: 12px;
  --shadow: 0 2px 24px rgba(0, 0, 0, 0.06);
  --container: 1100px;
}

/* Two-theme system: sand (light) and owl (dark) */
html[data-theme="sand"] {
  --bg: #fffdf8;
  --text: #2b2118;
  --muted: #7b6a58;
  --border: #efe7dc;
  --card: #fffbf3;
  --link: #2b2118;
  --accent: #734f2f;
  --glow: rgba(115, 79, 47, 0.25);
}
html[data-theme="owl"] {
  --bg: #0b0e13;
  --text: #e5e7eb;
  --muted: #9aa1ad;
  --border: #1f2937;
  --card: #0f141b;
  --link: #e5e7eb;
  --accent: #a78bfa;
  --glow: rgba(167, 139, 250, 0.25);
}