/* doiget — minimal stylesheet.
 * Black on white, serif body, monospace code. No JS, no framework.
 * Target: Rust-book / OpenAI-docs feel without bespoke design.
 */

:root {
  --fg: #222;
  --bg: #fff;
  --muted: #666;
  --link: #0366d6;
  --code-bg: #f6f8fa;
  --side: #fafafa;
  --rule: #e1e4e8;
  --accent: #b58900;
}

@media (prefers-color-scheme: dark) {
  :root {
    --fg: #e1e4e8;
    --bg: #0d1117;
    --muted: #8b949e;
    --link: #58a6ff;
    --code-bg: #161b22;
    --side: #161b22;
    --rule: #30363d;
    --accent: #d29922;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.6 Charter, "Bitstream Charter", "Source Serif Pro", Georgia, serif;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

code, pre, kbd, samp {
  font-family: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.92em;
}
code { background: var(--code-bg); padding: 1px 4px; border-radius: 3px; }
pre { background: var(--code-bg); padding: 1rem; overflow-x: auto; border-radius: 4px; }
pre code { background: none; padding: 0; }

hr { border: none; border-top: 1px solid var(--rule); margin: 2rem 0; }

/* ---------- site shell ---------- */

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--rule);
  max-width: 1100px;
  margin: 0 auto;
}
.site-header .brand { font-weight: bold; font-size: 1.2rem; }
.site-nav a { margin-left: 1.5rem; color: var(--fg); }

.page {
  max-width: 760px;
  margin: 0 auto;
  padding: 2rem;
}

.site-footer {
  max-width: 760px;
  margin: 4rem auto 2rem;
  padding: 2rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.9rem;
}
.site-footer .legal { margin-top: 0.5rem; }

/* ---------- landing ---------- */

.hero h1 { font-size: 2.2rem; margin-bottom: 0.25em; }
.hero .tagline { font-size: 1.1rem; color: var(--muted); }
.hero .demo { margin-top: 1.5rem; }

.posture {
  margin: 2rem 0;
  padding: 1rem 1.2rem;
  border-left: 4px solid var(--accent);
  background: var(--code-bg);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin: 1rem 0 2rem;
}
.card {
  display: block;
  padding: 1.2rem;
  border: 1px solid var(--rule);
  border-radius: 6px;
  color: var(--fg);
}
.card:hover { border-color: var(--link); text-decoration: none; }
.card h3 { margin-top: 0; }
.card p { color: var(--muted); }

.roadmap .done { color: var(--muted); }
.roadmap .active { color: var(--accent); font-weight: bold; }

/* ---------- section + page ---------- */

.section-head .lede,
.page-head .lede {
  color: var(--muted);
  font-style: italic;
}

.index { list-style: none; padding: 0; }
.index li { padding: 0.4rem 0; border-bottom: 1px solid var(--rule); }
.index .lede { color: var(--muted); font-style: italic; }

.meta { color: var(--muted); font-size: 0.85rem; }

/* ---------- typography ---------- */

h1, h2, h3 { line-height: 1.25; }
h2 { margin-top: 2rem; border-bottom: 1px solid var(--rule); padding-bottom: 0.3rem; }
h3 { margin-top: 1.5rem; }
blockquote {
  margin: 1rem 0;
  padding: 0.2rem 1rem;
  border-left: 3px solid var(--rule);
  color: var(--muted);
}
table { border-collapse: collapse; }
th, td { padding: 0.4rem 0.8rem; border: 1px solid var(--rule); }