:root { color-scheme: light dark; font-family: system-ui, sans-serif; line-height: 1.65; }
body { max-width: 52rem; margin: auto; padding: 2rem clamp(1rem, 5vw, 3rem); background: light-dark(#faf9f5, #17201e); color: light-dark(#233b32, #e6eee9); }
a { color: light-dark(#245d48, #9dd5b8); text-underline-offset: .2em; }
header { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; justify-content: space-between; border-bottom: 1px solid #789384; padding-bottom: 1rem; }
.brand { font-weight: 750; font-size: 1.4rem; text-decoration: none; }
nav { display: flex; gap: 1.2rem; }
main { min-height: 45vh; padding: 3rem 0; }
h1 { font-size: clamp(2.5rem, 8vw, 4rem); line-height: 1.1; letter-spacing: -.04em; }
footer { border-top: 1px solid #789384; padding-top: 1rem; font-size: .9rem; }
pre { overflow-x: auto; } img { max-width: 100%; height: auto; }
:focus-visible { outline: 3px solid currentColor; outline-offset: 4px; }
.skip { position: absolute; top: -5rem; } .skip:focus { top: .5rem; }