/* GPT Bugs — design tokens and fonts
   Monochrome, high contrast (WCAG AAA), one signal red reserved for danger. */

/* Archivo variable (width 62–125%, weight 100–900), self-hosted. SIL OFL 1.1 — see fonts/archivo/OFL.txt */
@font-face {
  font-family: "Archivo";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  font-stretch: 62% 125%;
  src: url("../fonts/archivo/archivo-latin-ext-wdth.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

@font-face {
  font-family: "Archivo";
  font-style: normal;
  font-display: swap;
  font-weight: 100 900;
  font-stretch: 62% 125%;
  src: url("../fonts/archivo/archivo-latin-wdth.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* Tokens ----------------------------------------------------------------- */
:root {
  --paper: oklch(0.975 0.004 95);
  --ink: oklch(0.17 0.006 95);
  --ink-muted: oklch(0.4 0.006 95);   /* 8.5:1 on paper */
  --signal: oklch(0.46 0.19 27);      /* 7:1+ on paper; danger only */

  --font: "Archivo", "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --rule: 3px;
  --rule-thin: 1px;
  --gutter: clamp(1rem, 0.6rem + 1.6vw, 2rem);
  --target: 2.75rem; /* 44px minimum hit area */

  --step--1: clamp(0.8125rem, 0.79rem + 0.1vw, 0.875rem);
  --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  --step-1: clamp(1.25rem, 1.1rem + 0.6vw, 1.625rem);
  --step-2: clamp(1.5rem, 1.2rem + 1.4vw, 2.25rem);
  --step-3: clamp(2rem, 1.4rem + 3vw, 3.75rem);

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: oklch(0.165 0.006 95);
    --ink: oklch(0.955 0.004 95);
    --ink-muted: oklch(0.78 0.006 95);
    --signal: oklch(0.74 0.15 25);
  }
}