:root { color-scheme: light dark; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #eaf0f6; background: #08121e; line-height: 1.75; }
* { box-sizing: border-box; }
body { margin: 0; }
main, header, footer { width: min(100% - 2.5rem, 48rem); margin-inline: auto; }
header { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; padding-block: 1.5rem; border-bottom: 1px solid #334456; }
nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }
a { color: #91c9f4; text-underline-offset: .2em; overflow-wrap: anywhere; }
a:focus-visible { outline: 3px solid #edc382; outline-offset: 5px; }
.brand { font-weight: 700; color: inherit; text-decoration: none; }
main { padding-block: 2rem; }
h1 { font-size: clamp(2rem, 6vw, 2.75rem); line-height: 1.3; letter-spacing: -.02em; margin: .25rem 0 1rem; }
h2 { font-size: 1.35rem; line-height: 1.5; margin-top: 2rem; }
h3 { font-size: 1.05rem; margin-bottom: .35rem; }
p, li { font-size: 1rem; }
.meta { color: #b2c0ce; font-size: .9rem; }
section + section { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid #334456; }
footer { padding-block: 1.5rem 2.5rem; border-top: 1px solid #334456; color: #b2c0ce; font-size: .9rem; }
@media (prefers-color-scheme: light) { :root { background: #f6f8fa; color: #152637; } a { color: #135b90; } .meta, footer { color: #526577; } header, section + section, footer { border-color: #cfdae3; } }