/* ============================================================
   alumnAI — Design Tokens
   Source of truth for color, spacing, type, radii, motion.
   Update here, propagates everywhere.
   ============================================================ */

:root {
  /* ---- Brand (from logo: deep navy + vibrant blue + light blue) ---- */
  --brand-navy: #1B2D52;
  --brand-navy-dark: #122044;
  --brand-navy-light: #2A4275;
  --brand-blue: #2196F3;
  --brand-blue-dark: #1976D2;
  --brand-blue-light: #4FC3F7;
  --brand-blue-soft: #E4F1FE;

  /* ---- Semantic ---- */
  --success: #1E8A5F;
  --success-dark: #126445;
  --success-soft: #E2F4EC;
  --warning: #BA7517;
  --warning-soft: #FAEEDA;
  --danger: #A32D2D;
  --danger-soft: #FCEBEB;
  --info: var(--brand-blue);
  --info-soft: var(--brand-blue-soft);

  /* ---- Surfaces & text ---- */
  --bg: #FAFBFC;
  --surface: #FFFFFF;
  --surface-2: #F1F4F8;
  --surface-3: #E6ECF3;
  --border: rgba(15, 25, 50, 0.08);
  --border-strong: rgba(15, 25, 50, 0.16);
  --shadow-sm: 0 1px 2px rgba(15, 25, 50, 0.04), 0 1px 1px rgba(15, 25, 50, 0.03);
  --shadow-md: 0 2px 6px rgba(15, 25, 50, 0.06), 0 6px 14px rgba(15, 25, 50, 0.05);
  --shadow-lg: 0 8px 24px rgba(15, 25, 50, 0.10);

  --text: #0E1116;
  --text-2: #4A5360;
  --text-3: #828A95;
  --text-on-brand: #FFFFFF;

  /* ---- Type ---- */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
               "Helvetica Neue", Arial, sans-serif;
  --font-display: var(--font-sans);
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --fs-xs: 11px;
  --fs-sm: 12px;
  --fs-base: 14px;
  --fs-md: 15px;
  --fs-lg: 17px;
  --fs-xl: 20px;
  --fs-2xl: 24px;
  --fs-3xl: 28px;
  --fs-4xl: 34px;

  /* ---- Spacing ---- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* ---- Radii ---- */
  --radius-sm: 6px;
  --radius: 8px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --radius-pill: 999px;

  /* ---- Motion ---- */
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --t-fast: 0.12s;
  --t: 0.2s;
  --t-slow: 0.4s;

  /* ---- Layout ---- */
  --sidebar-w: 264px;
  --topbar-h: 64px;
  --content-max: 1120px;
}

@media (prefers-color-scheme: dark) {
  /* Dark mode reserved for v1.1 — keeping V1 light to match school evaluator expectations */
}