:root{--bg:#FBFBFD;--ink:#1B2948;--muted:#4A5872;--teal:#2A9D9B;--rule:#D9DEE8}
@media (prefers-color-scheme:dark){:root{--bg:#121A2C;--ink:#EEF1F7;--muted:#AEB8CC;--teal:#51C8C6;--rule:#2C3956}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 "Space Grotesk",system-ui,sans-serif}
main{max-width:640px;margin:0 auto;padding:56px 16px 80px}
.chip{font:600 12px/1 "JetBrains Mono",ui-monospace,monospace;letter-spacing:.12em;color:var(--teal);text-transform:uppercase}
h1{font-size:34px;line-height:1.15;margin:14px 0 18px}
h2{font-size:19px;margin:32px 0 6px}
p,li{color:var(--muted)}
a{color:var(--teal)}
hr{border:0;border-top:1px solid var(--rule);margin:40px 0 16px}
footer{font-size:14px;color:var(--muted)}