/* =====================================================================
   406 Madison — Design Tokens
   Rustic river palette: deep river blue, pine green, warm stone, cream
   ===================================================================== */

:root, [data-theme="light"] {
  /* Surfaces — warm stone / cream */
  --color-bg: #F5F1EA;
  --color-surface: #FBF8F2;
  --color-surface-2: #FFFDF8;
  --color-surface-offset: #ECE5D9;
  --color-surface-offset-2: #DED5C4;
  --color-surface-dynamic: #D4CAB4;
  --color-divider: #D9D1C0;
  --color-border: #C7BDA6;

  /* Text — deep bark / warm ink */
  --color-text: #241E14;
  --color-text-muted: #6F6655;
  --color-text-faint: #A99E85;
  --color-text-inverse: #FBF8F2;

  /* Primary — Madison River blue (deep, mossy, evergreen-shifted) */
  --color-primary: #1F4E5A;
  --color-primary-hover: #163A44;
  --color-primary-active: #0E2A31;
  --color-primary-highlight: #CFD9DC;

  /* Secondary accent — Pine green (reserved, for tags/icons) */
  --color-pine: #3D5A3C;
  --color-pine-hover: #2C4A2C;
  --color-pine-active: #1F361F;
  --color-pine-highlight: #CBD4C4;

  /* Accent — Sunset copper (for CTAs, used sparingly) */
  --color-accent: #B46A3C;
  --color-accent-hover: #8F5128;
  --color-accent-active: #6A3A1B;
  --color-accent-highlight: #E6D3C2;

  /* Semantic */
  --color-warning: #964219;
  --color-error: #A12C7B;
  --color-success: #437A22;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 220ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows — warm, tone-matched */
  --shadow-sm: 0 1px 2px oklch(0.2 0.02 70 / 0.08);
  --shadow-md: 0 4px 14px oklch(0.2 0.02 70 / 0.10);
  --shadow-lg: 0 18px 40px oklch(0.2 0.02 70 / 0.14);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 1040px;
  --content-wide: 1240px;
  --content-full: 100%;

  /* Typography */
  --font-display: 'Fraunces', 'Georgia', serif;
  --font-body: 'Inter', 'Helvetica Neue', system-ui, sans-serif;

  /* Type scale (fluid) */
  --text-xs: clamp(0.75rem, 0.70rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.80rem + 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);
  --text-hero: clamp(2.75rem, 1rem + 6vw, 6rem);

  /* Spacing (4px system) */
  --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;
  --space-32: 8rem;
}

/* =====================================================================
   DARK MODE — night on the river
   ===================================================================== */
[data-theme="dark"] {
  --color-bg: #141311;
  --color-surface: #1B1917;
  --color-surface-2: #211F1C;
  --color-surface-offset: #272420;
  --color-surface-offset-2: #2D2A25;
  --color-surface-dynamic: #35312B;
  --color-divider: #2A2722;
  --color-border: #3E3A33;

  --color-text: #E8E2D4;
  --color-text-muted: #9A9283;
  --color-text-faint: #6D6757;
  --color-text-inverse: #141311;

  --color-primary: #6AA6B3;
  --color-primary-hover: #89BCC8;
  --color-primary-active: #A6CED7;
  --color-primary-highlight: #283740;

  --color-pine: #89A886;
  --color-pine-hover: #A3BE9D;
  --color-pine-active: #BBD2B4;
  --color-pine-highlight: #2E3A2C;

  --color-accent: #D7915E;
  --color-accent-hover: #E3A879;
  --color-accent-active: #ECBF96;
  --color-accent-highlight: #3E2F23;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.35);
  --shadow-md: 0 4px 14px oklch(0 0 0 / 0.45);
  --shadow-lg: 0 18px 40px oklch(0 0 0 / 0.55);
}

/* System preference fallback */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #141311;
    --color-surface: #1B1917;
    --color-surface-2: #211F1C;
    --color-surface-offset: #272420;
    --color-surface-offset-2: #2D2A25;
    --color-surface-dynamic: #35312B;
    --color-divider: #2A2722;
    --color-border: #3E3A33;
    --color-text: #E8E2D4;
    --color-text-muted: #9A9283;
    --color-text-faint: #6D6757;
    --color-text-inverse: #141311;
    --color-primary: #6AA6B3;
    --color-primary-hover: #89BCC8;
    --color-primary-active: #A6CED7;
    --color-primary-highlight: #283740;
    --color-pine: #89A886;
    --color-pine-highlight: #2E3A2C;
    --color-accent: #D7915E;
    --color-accent-hover: #E3A879;
    --color-accent-active: #ECBF96;
    --color-accent-highlight: #3E2F23;
  }
}