:root { color-scheme: light dark; --bg: #f4f3ed; --paper: #fbfaf6; --text: #172322; --muted: #4e6260; --accent: #23685e; --line: #cbd7d3; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 1rem/1.7 system-ui, sans-serif; }
a { color: var(--accent); text-underline-offset: .22em; overflow-wrap: anywhere; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
header, main, footer { width: min(100% - 2.5rem, 49rem); margin-inline: auto; }
header { padding-block: 1.8rem; border-bottom: 1px solid var(--line); }
.brand { font-size: 1.3rem; font-weight: 750; text-decoration: none; }
nav { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; margin-top: .7rem; }
nav a[aria-current="page"] { font-weight: 700; }
main { padding-block: 2.5rem 3rem; }
h1 { font-size: clamp(1.9rem, 5vw, 2.8rem); line-height: 1.15; letter-spacing: -.035em; margin: .6rem 0 1.2rem; overflow-wrap: anywhere; }
h2 { font-size: 1.25rem; line-height: 1.4; margin-top: 2rem; }
p, ul { margin-block: 1rem; }
li + li { margin-top: .4rem; }
.meta, footer { font-size: .9rem; color: var(--muted); }
.intro { padding: 1rem 1.3rem; border-left: 3px solid var(--accent); background: var(--paper); }
footer { padding-block: 1.4rem 2rem; border-top: 1px solid var(--line); }
.skip { position: absolute; top: -5rem; left: 1rem; background: var(--paper); padding: .5rem; }
.skip:focus { top: .5rem; }
@media (prefers-color-scheme: dark) { :root { --bg: #111b1a; --paper: #172322; --text: #e0e9e6; --muted: #b3c6bf; --accent: #87d5c4; --line: #354b43; } }
@media print { :root { --bg: white; --paper: white; --text: black; --muted: #333; --accent: black; --line: #999; } header, footer { display: none; } main { width: 100%; } h2 { break-after: avoid; } }