:root {
  --bg: #14161a; --panel: #1b1e24; --line: #2b2f37;
  --ink: #ecebe6; --ink-soft: #b9b7ae; --ink-mute: #7e7d76; --rust: #c2592f;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  background: var(--bg); color: var(--ink);
  font-family: "Barlow", -apple-system, sans-serif;
  font-size: 16px; line-height: 1.7; -webkit-font-smoothing: antialiased;
  padding: 64px 24px 96px;
}
.wrap { max-width: 720px; margin: 0 auto; }
.mark {
  font-family: "JetBrains Mono", monospace; font-size: 12px;
  letter-spacing: 0.32em; color: var(--rust); text-transform: uppercase;
}
h1 {
  font-family: "Fraunces", serif; font-weight: 400;
  font-size: clamp(30px, 5vw, 44px); line-height: 1.12;
  margin: 16px 0 8px; letter-spacing: -0.01em;
}
.updated {
  font-family: "JetBrains Mono", monospace; font-size: 12px;
  letter-spacing: 0.1em; color: var(--ink-mute); margin-bottom: 8px;
}
.lede { color: var(--ink-soft); margin: 16px 0 8px; }
h2 {
  font-family: "Fraunces", serif; font-weight: 500; font-size: 22px;
  margin: 40px 0 10px; color: var(--ink);
}
h3 { font-size: 16px; font-weight: 600; margin: 22px 0 6px; color: var(--ink); }
p, li { color: var(--ink-soft); margin: 0 0 12px; }
ul { padding-left: 22px; margin: 0 0 12px; }
li { margin-bottom: 8px; }
strong { color: var(--ink); font-weight: 600; }
a { color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--rust); }
.hair { height: 1px; background: var(--line); margin: 40px 0; }
.back {
  display: inline-block; margin-top: 48px;
  font-family: "JetBrains Mono", monospace; font-size: 12px;
  letter-spacing: 0.2em; color: var(--ink-mute);
}
.toc {
  border: 1px solid var(--line); border-radius: 10px; padding: 18px 22px;
  margin: 28px 0; background: var(--panel);
}
.toc a { border: none; color: var(--ink-soft); }
.toc a:hover { color: var(--ink); }
.callout {
  border-left: 3px solid var(--rust); padding: 4px 0 4px 18px; margin: 16px 0;
}