/* CitationCheck.org design tokens */
:root {
  /* Brand + neutral colors */
  --color-ink: #17352F;          /* deep forest ink */
  --color-ink-soft: #2C4A43;
  --color-canvas: #F6F2E8;       /* warm ivory */
  --color-surface: #FFFFFF;
  --color-sage: #BFD1C3;
  --color-coral: #E57B61;
  --color-gold: #E9C86A;
  --color-lavender: #D8D2E8;
  --color-neutral-dark: #222622;
  --color-text: #222622;
  --color-text-muted: #5F6863;
  --color-border: #DED7C6;
  --color-border-strong: #B9B1A0;

  /* Status colors (always paired with text + icon, never color alone) */
  --status-verified-bg: #E4EEE4;
  --status-verified-fg: #1D5B34;
  --status-partial-bg: #FBF0D8;
  --status-partial-fg: #7A5A12;
  --status-review-bg: #E9E5F3;
  --status-review-fg: #4A3F77;
  --status-notfound-bg: #F7E4DE;
  --status-notfound-fg: #8A3B28;
  --status-unavailable-bg: #E8E8E6;
  --status-unavailable-fg: #4A4E4A;

  /* Typography */
  --font-sans: "Source Sans 3", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Source Serif 4", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, monospace;

  --text-xs: 0.8125rem;
  --text-sm: 0.9375rem;
  --text-base: 1.0625rem;
  --text-lg: 1.1875rem;
  --text-xl: 1.375rem;
  --text-2xl: 1.75rem;
  --text-3xl: 2.25rem;
  --text-4xl: clamp(2.5rem, 5vw, 3.5rem);

  --leading-tight: 1.15;
  --leading-snug: 1.35;
  --leading-normal: 1.6;

  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;
  --space-9: 6rem;

  /* Layout */
  --container-max: 72rem;
  --container-narrow: 46rem;
  --container-pad: clamp(1rem, 4vw, 2rem);

  /* Radii, borders, shadows */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --border-thin: 1px solid var(--color-border);
  --shadow-soft: 0 2px 12px rgba(23, 53, 47, 0.08);
  --shadow-raised: 0 8px 28px rgba(23, 53, 47, 0.12);

  /* Motion */
  --transition-fast: 140ms ease;
  --transition-base: 220ms ease;

  /* Z-index layers */
  --z-header: 40;
  --z-skip: 100;
}