:root {
  --bg: #eceef1; --ink: #14171d; --ink-soft: #4b5260; --line: #cfd3da; --accent: #2f63d6; --playhead: #e5384a;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #101216; --ink: #eef0f4; --ink-soft: #a1a8b5; --line: #2c313a; --accent: #5b8cf5; --playhead: #ff5468; color-scheme: dark; }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.65 "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  padding: 0 max(16px, env(safe-area-inset-left, 0px)) 64px max(16px, env(safe-area-inset-left, 0px));
}
.doc { max-width: 760px; margin: 0 auto; }
.bar { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding-block: 20px; flex-wrap: wrap; }
.bar a { color: var(--ink); font-weight: 600; text-decoration: none; }
.bar a:hover { text-decoration: underline; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.seg button { font: 500 13px ui-monospace, Menlo, monospace; background: transparent; color: var(--ink-soft); border: 0; padding: 7px 11px; cursor: pointer; }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--bg); }
h1 { font-family: "Bricolage Grotesque", "Arial Narrow", system-ui, sans-serif; font-size: clamp(32px, 6vw, 48px); line-height: 1.1; margin: 20px 0 8px; letter-spacing: -.02em; }
.updated { color: var(--ink-soft); font-size: 14px; margin-bottom: 28px; }
h2 { font-family: "Bricolage Grotesque", system-ui, sans-serif; font-size: 22px; margin: 32px 0 8px; border-top: 1px solid var(--line); padding-top: 20px; }
p { margin: 0 0 12px; }
ul { margin: 0 0 12px; padding-left: 22px; }
a { color: var(--accent); }
:focus-visible { outline: 3px solid var(--playhead); outline-offset: 3px; border-radius: 4px; }