/* ============================================================================
 * Design tokens for the Dark Matter design system
 * Source of truth: DESIGN.md §3-7
 * Loaded before main.css on every full page (see app/templates/base.html)
 * ============================================================================ */

:root {
  /* §3 Palette — base ------------------------------------------------------------- */
  --color-bg-primary: #0a0a0a;
  --color-bg-secondary: #111111;
  --color-bg-tertiary: #1f1f1f;
  --color-bg-overlay: #2a2a2a;

  /* §3 Palette — text ------------------------------------------------------------- */
  --color-text-primary: #f0f0f0;
  --color-text-secondary: #9a9a9a;
  --color-text-muted: #555555;

  /* §3 Palette — accents ---------------------------------------------------------- */
  --color-accent-primary: #e8e0d0;
  --color-accent-highlight: #c8bfb0;
  --color-accent-cold: #4a7c8a;

  /* §3 Palette — functional states ------------------------------------------------ */
  --color-success: #4a7c5a;
  --color-warning: #8a6a2a;
  --color-error: #7a3a3a;
  --color-info: #3a5a7a;

  /* §4 Typography — families ------------------------------------------------------ */
  --font-display: "DM Serif Display", Georgia, serif;
  --font-ui: "DM Mono", "SF Mono", Menlo, monospace;
  --font-support: "Instrument Serif", Georgia, serif;

  /* §4 Typography — scale (size / line-height) ----------------------------------- */
  --text-xs: 0.65rem;
  --text-sm: 0.8rem;
  --text-base: 1rem;
  --text-lg: 1.25rem;
  --text-xl: 1.6rem;
  --text-2xl: 2.2rem;
  --text-3xl: 3.5rem;

  --leading-xs: 1.4;
  --leading-sm: 1.5;
  --leading-base: 1.6;
  --leading-lg: 1.4;
  --leading-xl: 1.2;
  --leading-2xl: 1.1;
  --leading-3xl: 1.0;

  /* §5 Spacing (4px base) --------------------------------------------------------- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --space-16: 64px;
  --space-24: 96px;

  /* §5 Radii ---------------------------------------------------------------------- */
  --radius-sm: 2px;
  --radius-md: 6px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* §6 Shadows -------------------------------------------------------------------- */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5), 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.6), 0 4px 8px rgba(0, 0, 0, 0.4);
  --shadow-accent: 0 0 20px rgba(232, 224, 208, 0.08);

  /* §7 Animation ------------------------------------------------------------------ */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.45, 0, 0.55, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  --duration-fast: 120ms;
  --duration-normal: 240ms;
  --duration-slow: 400ms;
  --duration-enter: 500ms;
}