/* ===== DESIGN TOKENS — topics.watch ===== */

:root, [data-theme='light'] {
  /* Surfaces */
  --color-bg: #f7f6f2;
  --color-surface: #f9f8f5;
  --color-surface-2: #fbfbf9;
  --color-surface-offset: #edeae5;
  --color-border: #d4d1ca;
  --color-divider: #dcd9d5;

  /* Text */
  --color-text: #28251d;
  --color-text-muted: #7a7974;
  --color-text-faint: #bab9b4;
  --color-text-inverse: #f9f8f4;

  /* Brand — dark teal */
  --color-primary: #1b474d;
  --color-primary-light: #01696f;
  --color-primary-hover: #133439;
  --color-primary-highlight: #d0e0e1;
  --color-accent: #01696f;
  --color-accent-hover: #0c4e54;

  /* Semantic */
  --color-success: #437a22;
  --color-warning: #964219;
  --color-error: #a12c7b;

  /* Shadows */
  --shadow-sm: 0 1px 3px oklch(0.2 0.01 80 / 0.07);
  --shadow-md: 0 4px 16px oklch(0.2 0.01 80 / 0.09);
  --shadow-lg: 0 12px 40px oklch(0.2 0.01 80 / 0.13);

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Transitions */
  --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
}

[data-theme='dark'] {
  --color-bg: #0f1a1b;
  --color-surface: #141f20;
  --color-surface-2: #192526;
  --color-surface-offset: #1d2b2c;
  --color-border: #2a3a3b;
  --color-divider: #223031;
  --color-text: #d4d8d7;
  --color-text-muted: #7a8c8c;
  --color-text-faint: #4a5c5c;
  --color-text-inverse: #0f1a1b;
  --color-primary: #3d8a91;
  --color-primary-light: #4f98a3;
  --color-primary-hover: #54aab2;
  --color-primary-highlight: #1a2f30;
  --color-accent: #4f98a3;
  --color-accent-hover: #227f8b;
  --color-success: #6daa45;
  --color-warning: #bb653b;
  --color-error: #d163a7;
  --shadow-sm: 0 1px 3px oklch(0 0 0 / 0.25);
  --shadow-md: 0 4px 16px oklch(0 0 0 / 0.35);
  --shadow-lg: 0 12px 40px oklch(0 0 0 / 0.45);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0f1a1b;
    --color-surface: #141f20;
    --color-surface-2: #192526;
    --color-surface-offset: #1d2b2c;
    --color-border: #2a3a3b;
    --color-divider: #223031;
    --color-text: #d4d8d7;
    --color-text-muted: #7a8c8c;
    --color-text-faint: #4a5c5c;
    --color-text-inverse: #0f1a1b;
    --color-primary: #3d8a91;
    --color-primary-light: #4f98a3;
    --color-primary-hover: #54aab2;
    --color-primary-highlight: #1a2f30;
    --color-accent: #4f98a3;
    --color-accent-hover: #227f8b;
    --color-success: #6daa45;
    --color-warning: #bb653b;
    --color-error: #d163a7;
    --shadow-sm: 0 1px 3px oklch(0 0 0 / 0.25);
    --shadow-md: 0 4px 16px oklch(0 0 0 / 0.35);
    --shadow-lg: 0 12px 40px oklch(0 0 0 / 0.45);
  }
}

/* ===== TYPE SCALE ===== */
:root {
  --text-xs:   clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl:  clamp(2.5rem, 1rem + 4vw, 5rem);

  /* Spacing */
  --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;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Fonts */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'DM Sans', 'Helvetica Neue', sans-serif;
}