:root {
  /* Colors */
  --primary: #0f766e;
  --primary-dark: #115e59;
  --accent: #f59e0b;
  --accent-soft: #fde68a;
  --background: #eef4ef;
  --background-strong: #dcebe1;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-strong: #ffffff;
  --surface-muted: rgba(244, 251, 248, 0.82);
  --text-primary: #172126;
  --text-secondary: #5e6d73;
  --text-tertiary: #87959c;
  --border: rgba(23, 33, 38, 0.09);
  --border-strong: rgba(15, 118, 110, 0.18);
  --success: #22c55e;
  --error: #ef4444;
  --warning: #f59e0b;
  --overlay: rgba(9, 17, 20, 0.45);

  /* Spacing (8px grid) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;

  /* Shadows */
  --shadow-sm: 0 10px 24px rgba(17, 39, 32, 0.06);
  --shadow-md: 0 20px 44px rgba(17, 39, 32, 0.09);
  --shadow-lg: 0 28px 64px rgba(17, 39, 32, 0.14);

  /* Borders */
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --radius-xl: 36px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;

  /* Layout */
  --sidebar-width: 292px;
  --content-max-width: 1480px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --primary: #14b8a6;
    --primary-dark: #0d9488;
    --accent: #fbbf24;
    --accent-soft: #92400e;
    --background: #0f1419;
    --background-strong: #1a2332;
    --surface: rgba(26, 35, 50, 0.92);
    --surface-strong: #1e293b;
    --surface-muted: rgba(30, 41, 59, 0.82);
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-tertiary: #64748b;
    --border: rgba(226, 232, 240, 0.08);
    --border-strong: rgba(20, 184, 166, 0.2);
    --success: #34d399;
    --error: #f87171;
    --warning: #fbbf24;
    --overlay: rgba(0, 0, 0, 0.6);
    --shadow-sm: 0 10px 24px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 20px 44px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 28px 64px rgba(0, 0, 0, 0.4);
  }
}