:root {
  /* ── Typography ── */
  --font-serif: 'Lora', Georgia, 'Times New Roman', serif;
  --font-sans: 'Plus Jakarta Sans', 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* ── Spacing Scale ── */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* ── Elevation Shadows ── */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.09), 0 4px 10px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 40px -8px rgba(0, 0, 0, 0.14), 0 8px 16px -4px rgba(0, 0, 0, 0.06);
  --shadow-glow: 0 0 20px rgba(0, 0, 0, 0.08);

  /* ── Border Radius ── */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* ── Transitions & Easing ── */
  --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --trans-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --trans-base: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  --trans-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);

  /* ── System & Status Colors ── */
  --color-success-bg: #f0fdf4;
  --color-success-border: #bbf7d0;
  --color-success-text: #166534;
  --color-success-icon: #22c55e;

  --color-error-bg: #fef2f2;
  --color-error-border: #fecaca;
  --color-error-text: #991b1b;
  --color-error-icon: #ef4444;

  --color-warning-bg: #fffbeb;
  --color-warning-border: #fde68a;
  --color-warning-text: #92400e;
  --color-warning-icon: #f59e0b;

  --color-info-bg: #f0f9ff;
  --color-info-border: #bae6fd;
  --color-info-text: #075985;
  --color-info-icon: #0284c7;

  /* ── Common Defaults (Fallback) ── */
  --text: #1e293b;
  --muted: #64748b;
  --border: #e2e8f0;
  --radius: 12px;
  --shadow: var(--shadow-lg);
  --trans: var(--trans-base);
}