:root { color-scheme: dark; font-family: Inter, ui-sans-serif, system-ui, sans-serif; }
* { box-sizing: border-box; }
body { margin: 0; background: #05080d; color: #e8eef8; line-height: 1.65; }
main { width: min(800px, calc(100% - 40px)); margin: 0 auto; padding: 36px 0 80px; }
.brand { color: #50a5ff; font-weight: 800; text-decoration: none; letter-spacing: .04em; display: inline-flex; align-items: center; gap: .55rem; }
.brand img { width: 34px; height: 34px; object-fit: contain; }
h1 { color: #fff; margin: 34px 0 8px; line-height: 1.15; }
h2 { color: #91c6ff; margin: 34px 0 10px; line-height: 1.25; }
h3 { color: #d8e9ff; margin: 26px 0 8px; }
p, li { color: #c6d0df; }
a { color: #67b3ff; }
.meta { color: #8fa0b6; }
.languages { display: flex; gap: 16px; flex-wrap: wrap; margin: 28px 0 36px; }
.languages a { border: 1px solid #2b4c70; border-radius: 999px; padding: 7px 12px; text-decoration: none; color: #a9c7e6; }
.languages a[aria-selected="true"] { background: #1683ff; border-color: #1683ff; color: #fff; font-weight: 700; }
section[lang] { scroll-margin-top: 20px; }
section[lang][hidden] { display: none; }
/* Language panels are mutually exclusive tabs; separators belong to the former stacked layout. */
hr { display: none; }
.notice { border-left: 3px solid #2f92ff; background: #0d1a29; padding: 12px 16px; border-radius: 0 8px 8px 0; }
footer { border-top: 1px solid #203047; margin-top: 48px; padding-top: 22px; color: #8fa0b6; }