:root { color-scheme: light; font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #20242b; background: #f5f6f8; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-size: 16px; line-height: 1.65; }
a { color: #275dad; text-underline-offset: .18em; }
a:hover { color: #173f7c; }
.page-header, main, .page-footer { width: min(100% - 2rem, 920px); margin-inline: auto; }
.page-header { padding: 3rem 0 1.5rem; border-bottom: 1px solid #d8dce3; }
.brand { margin: 0 0 .25rem; color: #596273; font-size: .95rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(2rem, 6vw, 3rem); line-height: 1.15; }
.updated { margin: .75rem 0 1.25rem; color: #596273; }
.language-switcher { display: inline-flex; gap: .25rem; padding: .25rem; border: 1px solid #c6cbd4; border-radius: .65rem; background: #fff; }
.language-switcher button { min-height: 2.5rem; padding: .45rem .85rem; border: 0; border-radius: .45rem; color: #313743; background: transparent; font: inherit; cursor: pointer; }
.language-switcher button[aria-pressed="true"] { color: #20242b; background: #f5b84f; }
button:focus-visible, a:focus-visible { outline: 3px solid #e59a21; outline-offset: 3px; }
main { padding-block: 1.25rem 3rem; }
article { padding: clamp(1.25rem, 4vw, 3rem); border: 1px solid #e0e3e8; border-radius: 1rem; background: #fff; box-shadow: 0 .4rem 1.5rem rgb(27 37 53 / 6%); }
article + article { margin-top: 2rem; }
article > h2 { margin-top: 0; font-size: 1.8rem; }
section { padding-top: .5rem; }
h3 { margin: 2rem 0 .6rem; font-size: 1.3rem; line-height: 1.3; }
h4 { margin: 1.5rem 0 .5rem; font-size: 1.08rem; }
p { margin: .65rem 0; }
ul { margin: .65rem 0 1rem; padding-left: 1.4rem; }
li + li { margin-top: .25rem; }
.page-footer { padding: 1.5rem 0 3rem; border-top: 1px solid #d8dce3; color: #4d5563; }
.page-footer p { margin: .25rem 0; }
[hidden] { display: none !important; }
@media (max-width: 520px) { .page-header { padding-top: 2rem; } article { border-radius: .7rem; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }