:root{color-scheme:light dark;--background:#faf9f6;--surface:#fff;--text:#252326;--muted:#625e64;--line:#dedbe0;--accent:#a62140}
*{box-sizing:border-box}
html{font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6;text-size-adjust:100%}
body{background:var(--background);color:var(--text);margin:0}
a{color:var(--accent);text-underline-offset:.2em}
a:hover{text-decoration-thickness:2px}
a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px;border-radius:3px}
header,main,footer{width:min(100% - 40px,880px);margin-inline:auto}
header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-block:25px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--text);font-size:1.35rem;font-weight:700;text-decoration:none}
.brand img{border-radius:22%}
nav{display:flex;gap:22px;flex-wrap:wrap}
.header-controls{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.language-picker{display:block}
select{font:inherit;color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:10px;min-height:44px;padding:9px 30px 9px 12px;max-width:175px;cursor:pointer}
select:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.no-script-languages{width:min(100% - 40px,880px);margin:20px auto}
nav [aria-current=page]{color:var(--text);font-weight:650}
main{padding-block:36px 64px;min-height:55vh}
h1{font-size:clamp(1.8rem,5vw,2.7rem);line-height:1.2;letter-spacing:-.035em;margin:0 0 24px;text-wrap:balance}
h2{font-size:1.25rem;line-height:1.35;margin:0 0 12px;text-wrap:balance}
h3{font-size:1.05rem;line-height:1.4;margin:0 0 8px}
p{margin:0 0 16px;max-width:73ch}
section{margin-top:32px}
.intro,.updated,footer{color:var(--muted)}
.contact{background:var(--surface);padding:24px;border:1px solid var(--line);border-radius:18px}
.contact p:last-child{margin-bottom:0}
.contact-link{font-size:1.2rem;font-weight:600;overflow-wrap:anywhere}
.steps{list-style:none;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;counter-reset:steps}
.steps li{padding:20px;border:1px solid var(--line);border-radius:16px;counter-increment:steps}
.steps h3:before{content:counter(steps) ". ";color:var(--muted)}
.steps p{margin-bottom:6px}
.badge{display:inline-block;border:1px solid var(--line);border-radius:99px;padding:1px 9px;font-size:.8rem;color:var(--muted)}
details{padding:18px 0;border-bottom:1px solid var(--line)}
summary{cursor:pointer;font-weight:600;line-height:1.45}
details p{margin:14px 0 0}
footer{padding-block:24px 36px;border-top:1px solid var(--line);font-size:.9rem;overflow-wrap:anywhere}
.references{padding-left:20px}
.skip{position:absolute;left:16px;top:-100px;background:var(--surface);padding:8px}
.skip:focus{top:10px}
@media(max-width:650px){header,main,footer{width:calc(100% - 32px)}header{display:grid;grid-template-columns:1fr auto;gap:18px;padding-block:20px}.header-controls{display:contents}.language-picker{grid-column:2;grid-row:1}header nav{grid-column:1/-1;grid-row:2;gap:20px;font-size:.95rem}select{max-width:145px}.steps{grid-template-columns:1fr}.contact{padding:20px}main{padding-top:30px}}
@media(prefers-color-scheme:dark){:root{--background:#111113;--surface:#1c1b1e;--text:#f4f1f3;--muted:#b3adb6;--line:#3d383f;--accent:#ff99ad}}