/* =========================================================
   DOWNTOWN UNDERGROUND, INC. — DESIGN TOKENS
   Art direction: Heavy industry. Power under the pavement.
   Palette: Deep charcoal, safety orange, concrete grey.
   ========================================================= */

:root,
[data-theme='light'] {
  /* Surfaces — concrete grey with warmth */
  --color-bg: #f4f3f0;
  --color-surface: #f8f7f4;
  --color-surface-2: #fafaf8;
  --color-surface-offset: #eceae6;
  --color-surface-offset-2: #e3e0db;
  --color-surface-dynamic: #d8d5cf;
  --color-divider: #ccc9c3;
  --color-border: #bbb8b1;

  /* Text */
  --color-text: #1a1916;
  --color-text-muted: #6a6760;
  --color-text-faint: #aaa8a2;
  --color-text-inverse: #f8f7f4;

  /* Primary Accent — Safety Orange */
  --color-primary: #d45a00;
  --color-primary-hover: #b34b00;
  --color-primary-active: #8f3c00;
  --color-primary-highlight: #f5d8c2;

  /* Secondary — Deep Iron */
  --color-iron: #1e2226;
  --color-iron-hover: #2e353c;
  --color-iron-surface: #252b31;

  /* Success */
  --color-success: #2e6b22;
  --color-success-highlight: #cfdecb;

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

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

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(26, 25, 22, 0.08);
  --shadow-md: 0 4px 16px rgba(26, 25, 22, 0.12);
  --shadow-lg: 0 12px 40px rgba(26, 25, 22, 0.16);

  /* 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;
  --space-32: 8rem;

  /* Type Scale */
  --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);
  --text-hero: clamp(3rem, 0.5rem + 7vw, 8rem);

  /* Layout */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* Fonts */
  --font-display: 'Barlow Condensed', 'Impact', 'Arial Narrow', sans-serif;
  --font-body: 'Inter', 'Helvetica Neue', Arial, sans-serif;
}

[data-theme='dark'] {
  --color-bg: #111315;
  --color-surface: #161819;
  --color-surface-2: #1b1d1f;
  --color-surface-offset: #1e2022;
  --color-surface-offset-2: #232628;
  --color-surface-dynamic: #2d3135;
  --color-divider: #2a2d31;
  --color-border: #353a3e;
  --color-text: #e8e6e3;
  --color-text-muted: #888580;
  --color-text-faint: #5a5855;
  --color-text-inverse: #1a1916;
  --color-primary: #ff7a20;
  --color-primary-hover: #ff8f42;
  --color-primary-active: #ffa566;
  --color-primary-highlight: #3d2210;
  --color-iron: #e8e6e3;
  --color-iron-hover: #ccc9c3;
  --color-iron-surface: #1e2226;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #111315;
    --color-surface: #161819;
    --color-surface-2: #1b1d1f;
    --color-surface-offset: #1e2022;
    --color-surface-offset-2: #232628;
    --color-surface-dynamic: #2d3135;
    --color-divider: #2a2d31;
    --color-border: #353a3e;
    --color-text: #e8e6e3;
    --color-text-muted: #888580;
    --color-text-faint: #5a5855;
    --color-text-inverse: #1a1916;
    --color-primary: #ff7a20;
    --color-primary-hover: #ff8f42;
    --color-primary-active: #ffa566;
    --color-primary-highlight: #3d2210;
    --color-iron: #e8e6e3;
    --color-iron-surface: #1e2226;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
  }
}