/* Pewterkit design tokens — from WHIP-SHIP/DESIGN.md v1.0 front matter (Elon, 24 Oct 2026).
   Import once per site. Never restyle locally; per-tool change = accent only (set data-tool on <html>). */
:root {
  /* neutrals (light) */
  --pk-ink: #16181b; --pk-body: #4a4f57; --pk-muted: #686e77; --pk-hairline: #e7e8ea;
  --pk-canvas: #ffffff; --pk-surface: #f7f8f9;
  --pk-pewter-50: #f4f5f6; --pk-pewter-200: #d9dce0; --pk-pewter-400: #a3a9b1;
  --pk-pewter-600: #6b727c; --pk-pewter-800: #353a41;
  /* result colours — result pages only */
  --pk-ok: #12805c; --pk-warn: #b25e09; --pk-bad: #c4322b;
  /* accent: hub default is ink; each tool overrides via [data-tool] */
  --pk-accent: #16181b; --pk-accent-contrast: #ffffff;

  /* typography */
  --pk-font-sans: "Geist", "Inter", system-ui, sans-serif;
  --pk-font-mono: "Geist Mono", ui-monospace, monospace;
  --pk-h1-size: 52px; --pk-h1-lh: 1.08; --pk-h1-ls: -0.035em;
  --pk-h2-size: 32px; --pk-h2-lh: 1.15; --pk-h2-ls: -0.02em;
  --pk-h3-size: 19px; --pk-h3-lh: 1.3;
  --pk-body-size: 17px; --pk-body-lh: 1.6;
  --pk-small-size: 14px; --pk-small-lh: 1.5;
  --pk-mono-size: 14px;
  --pk-weight-regular: 400; --pk-weight-strong: 600;

  /* spacing / layout */
  --pk-grid: 8px; --pk-section-gap: 112px; --pk-content-max: 1100px; --pk-hero-text-max: 640px;
  --pk-nav-height: 64px;

  /* shape */
  --pk-radius-card: 12px; --pk-radius-input: 10px; --pk-radius-button: 9999px;
  --pk-shadow-raised: 0 1px 2px rgba(16,24,40,.06), 0 8px 24px rgba(16,24,40,.06);
  --pk-button-min-height: 44px;

  /* motion */
  --pk-ease: cubic-bezier(0, 0, 0.2, 1); /* ease-out */
  --pk-dur-hover: 180ms; --pk-dur-reveal: 240ms; --pk-reveal-stagger: 40ms; --pk-reveal-rise: 8px;
  --pk-dur-score: 800ms;

  /* shadcn-style aliases (DESIGN.md §4) */
  --background: var(--pk-canvas); --foreground: var(--pk-ink); --muted: var(--pk-surface);
  --muted-foreground: var(--pk-muted); --border: var(--pk-hairline);
  --primary: var(--pk-accent); --primary-foreground: var(--pk-accent-contrast);
  --radius: var(--pk-radius-card);

  color-scheme: light dark;
}

@media (max-width: 640px) {
  :root { --pk-h1-size: 34px; --pk-h2-size: 26px; --pk-body-size: 16px; --pk-section-gap: 72px; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --pk-ink: #eceef1; --pk-body: #b4b9c1; --pk-muted: #858b94; --pk-hairline: #2a2e34;
    --pk-canvas: #0d0f11; --pk-surface: #15181b;
    --pk-accent: #eceef1; --pk-accent-contrast: #0d0f11;
  }
}

/* per-tool accents: ONE hue each (contrast checked by Elon 24 Oct) */
[data-tool="own-domain-signin"] { --pk-accent: #3b5bdb; --pk-accent-contrast: #ffffff; }
[data-tool="real-users"]        { --pk-accent: #0f766e; --pk-accent-contrast: #ffffff; }
@media (prefers-color-scheme: dark) {
  [data-tool="own-domain-signin"] { --pk-accent: #8ea2f0; --pk-accent-contrast: #0d0f11; }
  [data-tool="real-users"]        { --pk-accent: #5eead4; --pk-accent-contrast: #0d0f11; }
}

@media (prefers-reduced-motion: reduce) {
  :root { --pk-dur-hover: 0ms; --pk-dur-reveal: 0ms; --pk-reveal-stagger: 0ms; --pk-reveal-rise: 0px; --pk-dur-score: 0ms; }
}