:root {
  /* Brand */
  --primary: #15803d;
  --primary-light: #22c55e;
  --primary-dark: #166534;
  --primary-subtle: #dcfce7;
  --accent: #16a34a;

  /* Surfaces – Light */
  --bg: #f0f4f1;
  --surface: #ffffff;
  --surface-2: #f4f7f5;
  --surface-3: #e8f0eb;
  --border: #d1ddd4;

  /* Text – Light */
  --text: #111827;
  --text-2: #374151;
  --text-3: #6b7280;
  --text-inv: #ffffff;

  /* Status */
  --success: #16a34a;
  --warn: #d97706;
  --danger: #dc2626;
  --info: #2563eb;

  /* Shape */
  --radius: 18px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  /* Elevation */
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow: 0 4px 12px rgba(0,0,0,.1);
  --shadow-lg: 0 12px 32px rgba(0,0,0,.14);

  /* Motion */
  --ease: cubic-bezier(.4,0,.2,1);
  --dur: 200ms;
  --dur-lg: 350ms;

  /* Layout */
  --tab-h: 68px;
  --header-h: 60px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-top: env(safe-area-inset-top, 0px);
}

[data-theme="dark"] {
  --bg: #0d1410;
  --surface: #1a2419;
  --surface-2: #1f2d20;
  --surface-3: #243326;
  --border: #2d3f2f;

  --text: #f0fdf4;
  --text-2: #d1fae5;
  --text-3: #86efac;
  --text-inv: #0d1410;

  --primary-subtle: #14532d;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.3);
  --shadow: 0 4px 12px rgba(0,0,0,.4);
  --shadow-lg: 0 12px 32px rgba(0,0,0,.5);
}