:root {
  --bg: #fbfaf7; --fg: #1c1b19; --muted: #5f5c55; --line: #e4e0d6; --accent: #1f5c4a; --card: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #141412; --fg: #ecebe6; --muted: #a5a299; --line: #2c2b27; --accent: #7fc9b0; --card: #1c1b19; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
main, header, footer { max-width: 680px; margin: 0 auto; padding: 0 20px; }
header { padding-top: 28px; display: flex; justify-content: space-between; align-items: baseline; gap: 16px; }
header .name { font-weight: 650; letter-spacing: 0.01em; color: var(--fg); text-decoration: none; }
header nav a { margin-left: 18px; }
a { color: var(--accent); text-underline-offset: 3px; }
h1 { font-size: 2.1rem; line-height: 1.2; margin: 56px 0 16px; letter-spacing: -0.01em; }
h2 { font-size: 1.25rem; margin: 44px 0 10px; }
h3 { font-size: 1.02rem; margin: 26px 0 6px; }
p, ul { margin: 0 0 14px; }
ul { padding-left: 22px; }
li { margin-bottom: 6px; }
.lede { font-size: 1.15rem; color: var(--muted); }
.note { border: 1px solid var(--line); background: var(--card); border-radius: 10px; padding: 16px 18px; margin: 22px 0; }
.note p:last-child, .note ul:last-child { margin-bottom: 0; }
table { width: 100%; border-collapse: collapse; margin: 12px 0 20px; font-size: 0.95rem; }
th, td { text-align: left; vertical-align: top; padding: 9px 10px 9px 0; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }
.small { font-size: 0.9rem; color: var(--muted); }
footer { margin-top: 64px; padding-top: 20px; padding-bottom: 40px; border-top: 1px solid var(--line); }
@media (max-width: 480px) { h1 { font-size: 1.7rem; margin-top: 40px; } body { font-size: 16px; } }