:root { color-scheme: dark; font-family: system-ui, -apple-system, sans-serif; background: #101323; color: #e9edf8; }
* { box-sizing: border-box; }
body { margin: 0; line-height: 1.85; }
main, header, footer { max-width: 850px; margin: auto; padding: 24px; }
header { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px; border-bottom: 1px solid #343956; }
header a { font-weight: 700; }
nav { display: flex; flex-wrap: wrap; gap: 18px; }
a { color: #89e5ed; text-underline-offset: .22em; overflow-wrap: anywhere; }
a:focus-visible { outline: 3px solid #e7bf81; outline-offset: 5px; }
h1 { font-size: clamp(1.8rem, 5vw, 2.6rem); line-height: 1.4; margin-top: 18px; }
h2 { font-size: 1.25rem; margin-top: 2.5rem; color: #c8beff; }
p, li { overflow-wrap: anywhere; }
li { margin-block: .6em; }
.meta, footer { color: #bac1d6; font-size: .9rem; }
.notice { border-left: 3px solid #91e7df; background: #1c2238; padding: 12px 20px; }
details { border-block: 1px solid #343956; padding: 16px 0; margin-top: 40px; }
summary { cursor: pointer; font-weight: 700; }
footer { border-top: 1px solid #343956; margin-top: 32px; }
@media (max-width: 480px) { main, header, footer { padding: 20px; } ul { padding-left: 22px; } }