/* GraphFLA design tokens.

   The single place where colours, type and spacing are defined. The other
   stylesheets and the figure generator only reference these names, so a
   change here reaches the whole site. */

:root {
  /* Approved graphite-gold terrain (A1) */
  --gfl-color-facet-low: #454e52;
  --gfl-color-facet-mid: #a6a28a;
  --gfl-color-facet-high: #d6bc64;
  --gfl-color-facet-edge: #182026;
  --gfl-color-node: #b3b0a0;

  /* Homepage refinement */
  --gfl-color-body-muted: #adb5c1;
  --gfl-color-body-lede: #bac2cd;
  --gfl-color-figure-caption: #b4bcc7;
  --gfl-color-top-surface: #202329;
  --gfl-color-top-text: #b9c0cb;
  --gfl-color-top-border: #373c45;
  --gfl-color-top-shadow: #0003;
  --gfl-color-top-hover: #ffec3d;
  --gfl-color-top-hover-border: #777243;

  /* Surfaces */
  --gfl-color-page: #0B0E14;
  --gfl-color-card: #1B1C1F;
  --gfl-color-well: #121315;

  /* Case-cover readability */
  --gfl-color-cover: #0B0E12;
  --gfl-color-cover-clear: rgba(11, 14, 18, 0);
  --gfl-color-cover-light: rgba(11, 14, 18, 0.10);
  --gfl-color-cover-heavy: rgba(11, 14, 18, 0.86);

  /* Text, strongest to faintest */
  --gfl-color-text: #EEF1F5;
  --gfl-color-text-soft: #C9D0DA;
  --gfl-color-text-muted: #A3ADBB;
  --gfl-color-text-faint: #7D8898;

  /* Lines and fills laid over a surface */
  --gfl-color-line: rgba(255, 255, 255, 0.08);
  --gfl-color-line-strong: rgba(255, 255, 255, 0.20);
  --gfl-color-fill: rgba(255, 255, 255, 0.08);

  /* Accent: the best variant, the primary action */
  --gfl-color-accent: #FDE725;
  --gfl-color-accent-fill: rgba(253, 231, 37, 0.14);
  --gfl-color-accent-line: rgba(253, 231, 37, 0.45);
  --gfl-color-on-accent: #0B0E14;

  /* Data marks in figures and charts */
  --gfl-color-data: #DCE3EC;
  --gfl-color-data-mid: #8A94A3;
  --gfl-color-data-low: #5B6676;
  --gfl-color-mark: #FFFFFF;

  /* Code */
  --gfl-color-code-keyword: #B9A6F5;
  --gfl-color-code-call: #5CC8D6;
  --gfl-color-code-number: var(--gfl-color-accent);
  --gfl-color-code-comment: var(--gfl-color-text-faint);

  /* Typefaces */
  --gfl-font-display: "Bricolage Grotesque", "Helvetica Neue", Helvetica, sans-serif;
  --gfl-font-body: "Geist", "Helvetica Neue", Helvetica, sans-serif;
  --gfl-font-mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;

  /* Type scale */
  --gfl-text-2xs: 12px;
  --gfl-text-xs: 13px;
  --gfl-text-sm: 14px;
  --gfl-text-md: 15px;
  --gfl-text-base: 17px;
  --gfl-text-lg: 19px;
  --gfl-text-h3: 23px;
  --gfl-text-cover-mobile: 22px;
  --gfl-text-h2: clamp(30px, 3.3vw, 46px);
  --gfl-text-h1: clamp(40px, 5vw, 66px);
  --gfl-text-stat: 40px;
  --gfl-text-display: clamp(44px, 4.4vw, 60px);

  /* Line height and tracking */
  --gfl-leading-tight: 1.05;
  --gfl-leading-snug: 1.2;
  --gfl-leading-body: 1.5;
  --gfl-leading-code: 1.7;
  --gfl-tracking-tight: -0.02em;
  --gfl-tracking-snug: -0.01em;

  /* Spacing: multiples of 4px */
  --gfl-space-1: 4px;
  --gfl-space-2: 8px;
  --gfl-space-3: 12px;
  --gfl-space-4: 16px;
  --gfl-space-5: 20px;
  --gfl-space-6: 24px;
  --gfl-space-8: 32px;
  --gfl-space-10: 40px;
  --gfl-space-12: 48px;
  --gfl-space-14: 56px;

  /* Page layout */
  --gfl-page-width: 1200px;
  --gfl-gutter: 24px;
  --gfl-section-pad: clamp(56px, 7vw, 96px);

  /* Shape */
  --gfl-radius-sm: 6px;
  --gfl-radius-md: 10px;
  --gfl-radius-lg: 16px;
  --gfl-radius-pill: 999px;
  --gfl-size-control: 52px;
}