/* tokens.css — design system tokens (Phase 1) */
:root {
  /* Brand */
  --navy: #0B2545;
  --navy-700: #13315C;
  --navy-900: #071A33;
  --ink: #14213D;
  --red: #210488;
  --red-700: #1A0369;
  --red-500: #3D22B0;
  --danger: #B3112A;
  /* Button accent (owner-specified, Oct 2026) */
  --blue: #210488;
  --blue-700: #1A0369;
  --surface: #F3F7FC;
  --surface-2: #E8EFF8;
  --paper: #FFFFFF;
  --gold: #C9A227;
  --gold-soft: #E5CE85;

  /* Neutrals */
  --gray-900: #1B2430;
  --gray-700: #33415A;
  --gray-600: #47566F;
  --gray-500: #6B7A90;
  --gray-400: #94A1B8;
  --gray-300: #C5CFDE;
  --gray-200: #E2E8F0;
  --gray-100: #F3F7FC;

  /* Radius */
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-full: 999px;

  /* Spacing (8-pt scale) */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;
  --sp-9: 96px;

  /* Type scale (fluid via clamp) */
  --fs-11: clamp(0.75rem, 0.72rem + 0.15vw, 0.85rem);
  --fs-10: clamp(0.875rem, 0.85rem + 0.1vw, 0.9375rem);
  --fs-09: clamp(1rem, 0.97rem + 0.15vw, 1.0625rem);
  --fs-08: clamp(1.125rem, 1.07rem + 0.3vw, 1.25rem);
  --fs-07: clamp(1.375rem, 1.27rem + 0.55vw, 1.625rem);
  --fs-06: clamp(1.75rem, 1.55rem + 1vw, 2.25rem);
  --fs-05: clamp(2.25rem, 1.9rem + 2vw, 3.25rem);
  --fs-04: clamp(2.75rem, 2.2rem + 3vw, 4.25rem);

  --lh-tight: 1.15;
  --lh-normal: 1.6;
  --lh-relaxed: 1.8;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(16, 24, 40, 0.06);
  --shadow-sm: 0 1px 3px rgba(16, 24, 40, 0.08), 0 2px 6px rgba(16, 24, 40, 0.04);
  --shadow-md: 0 4px 12px rgba(16, 24, 40, 0.08), 0 10px 24px rgba(16, 24, 40, 0.06);
  --shadow-lg: 0 8px 24px rgba(16, 24, 40, 0.10), 0 20px 48px rgba(16, 24, 40, 0.08);
  --shadow-blue: 0 6px 18px rgba(33, 4, 136, 0.28);

  /* Focus ring */
  --focus-ring: 0 0 0 3px rgba(11, 37, 69, 0.28);
  --focus-ring-blue: 0 0 0 3px rgba(33, 4, 136, 0.30);

  /* Layout */
  --content-max: 1200px;
  --content-narrow: 800px;
  --header-h: 76px;

  /* Fonts */
  --font-sans: -apple-system, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", "Segoe UI", system-ui, sans-serif;
  --font-serif: "Noto Serif TC", "Songti TC", "PMingLiU", Georgia, "Times New Roman", serif;

  /* Motion */
  --dur-1: 120ms;
  --dur-2: 180ms;
  --dur-3: 240ms;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  :root {
    --dur-1: 0.01ms;
    --dur-2: 0.01ms;
    --dur-3: 0.01ms;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}