:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #1c1f26;
  --muted: #5d6472;
  --line: #e3e6eb;
  --accent: #e8590c;
  /* Liquid Glass, measured on Markus's toolbar controls in macOS 26 */
  --glass-sheen: linear-gradient(rgba(255, 255, 255, .09), rgba(255, 255, 255, 0) 40%, rgba(255, 255, 255, 0) 70%, rgba(255, 255, 255, .05));
  --glass: var(--glass-sheen), rgba(255, 255, 255, .12);
  --glass-edge: 0 0 0 .5px rgba(0, 0, 0, .8), inset 0 .5px 0 rgba(255, 255, 255, .3), inset 0 1.5px 1px rgba(255, 255, 255, .1),
    inset 0 -.5px 0 rgba(255, 255, 255, .26), inset 0 -1.5px 1px rgba(255, 255, 255, .07);
  --glass-white: linear-gradient(rgba(255, 255, 255, .85), rgba(255, 255, 255, 0) 25%, rgba(255, 255, 255, 0) 50%, rgba(255, 255, 255, .65));
  --glass-white-edge: inset 0 0 0 .5px rgba(0, 0, 0, .18), inset 0 1.5px 1px rgba(255, 255, 255, .95), inset 0 -1.5px 1px rgba(255, 255, 255, .8),
    0 0 0 .5px rgba(255, 255, 255, .3);
  --glass-ink: linear-gradient(rgba(255, 255, 255, .2), rgba(255, 255, 255, 0) 40%, rgba(255, 255, 255, 0) 70%, rgba(255, 255, 255, .08));
  --glass-ink-edge: inset 0 0 0 .5px rgba(0, 0, 0, .5), inset 0 .5px 0 rgba(255, 255, 255, .35), inset 0 -.5px 0 rgba(255, 255, 255, .2);
  --glass-on-text: var(--glass-ink);
  --glass-on-text-edge: var(--glass-ink-edge);
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121419;
    --surface: #1b1e25;
    --text: #e9ebef;
    --muted: #9aa1ae;
    --line: #2a2e37;
    --accent: #ff8a3d;
    --glass-on-text: var(--glass-white);
    --glass-on-text-edge: var(--glass-white-edge);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

.wrap { max-width: 980px; margin: 0 auto; padding: 0 24px; }

header.site {
  position: sticky; top: 0; z-index: 1;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--line);
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; height: 52px; }
header.site .brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; }
header.site .brand img { width: 28px; height: 28px; }
header.site nav { display: flex; align-items: center; }
header.site nav a { color: var(--muted); margin-left: 22px; font-size: 14px; }
header.site nav a:hover, header.site nav a[aria-current] { color: var(--text); text-decoration: none; }
header.site nav a.buy {
  padding: 4px 14px; border-radius: 999px; color: var(--bg); font-size: 13px; font-weight: 600;
  background-color: var(--text); background-image: var(--glass-on-text); box-shadow: var(--glass-on-text-edge);
}
header.site nav a.buy:hover { color: var(--bg); opacity: .86; }

article.doc { padding: 56px 0 40px; max-width: 760px; }
article.doc h1 { font-size: 40px; letter-spacing: -0.015em; margin: 0 0 6px; }
article.doc .updated { color: var(--muted); margin: 0 0 32px; }
article.doc h2 { font-size: 22px; margin: 36px 0 8px; }
article.doc p, article.doc li { color: var(--text); }
article.doc ul { padding-left: 22px; }
article.doc code { font: 0.9em ui-monospace, "SF Mono", Menlo, monospace; background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px; }

footer.site { border-top: 1px solid var(--line); margin-top: 48px; padding: 28px 0 40px; color: var(--muted); font-size: 14px; }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 8px 22px; justify-content: space-between; }
footer.site a { color: var(--muted); }

@media (max-width: 640px) {
  header.site nav a { margin-left: 14px; }
  article.doc h1 { font-size: 32px; }
}