/* Shared navigation: every section stays reachable on smaller screens. */
.header nav{gap:20px}.header nav a{white-space:nowrap}.header nav .active{color:var(--lime)}
.setup-body{background:radial-gradient(ellipse at 85% 8%,#d5ff630c,transparent 40%),var(--bg)}.setup-main{padding-bottom:70px}.setup-intro{display:grid;grid-template-columns:1.2fr 1fr;gap:20px 60px;padding:75px 0 65px}.setup-intro>.eyebrow{grid-column:1/-1}.setup-intro h1{font-size:clamp(58px,7vw,98px);margin:0}.setup-lead{align-self:end;max-width:430px}.setup-lead p{color:var(--muted);font-size:17px;line-height:1.8}.setup-section-label{display:flex;justify-content:space-between;gap:20px;padding:20px 0;border-top:1px solid var(--line)}.setup-section-label h2,.setup-section-label>span{font:11px Consolas,monospace;letter-spacing:1.5px;margin:0;color:var(--muted)}.setup-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}.setup-card{grid-column:span 2;position:relative;padding:28px;border:1px solid var(--line);border-radius:12px;background:linear-gradient(145deg,#12181b,#0c1013);overflow:hidden}.setup-card.gpu{grid-column:span 3;min-height:270px;background:radial-gradient(circle at 90% 10%,#d5ff6314,transparent 60%),#101518}.setup-index{font:11px Consolas,monospace;letter-spacing:1px;color:var(--lime);margin-bottom:48px}.setup-card h2{font:600 clamp(24px,2.5vw,34px)/1.15 'Barlow Condensed',Impact,sans-serif;max-width:90%;margin-bottom:16px}.setup-card>p:last-child{color:var(--muted);font-size:14px;line-height:1.75;margin-bottom:0}.chip-mark{position:absolute;right:28px;top:24px;width:32px;height:32px;border:1px solid #d5ff6340;display:grid;place-items:center;color:var(--lime);font:22px Consolas,monospace}.setup-environment{display:grid;grid-template-columns:1fr 1fr;gap:60px;margin-top:65px;padding:45px 0;border-block:1px solid var(--line)}.setup-environment h2{font:600 42px/1.05 'Barlow Condensed',Impact,sans-serif;margin-bottom:20px}.setup-environment p:not(.eyebrow){color:var(--muted);max-width:400px;font-size:14px}.environment-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:0;align-content:center}.environment-grid>div{padding:22px;border:1px solid #394132;border-radius:6px;background:#101613}.environment-grid dt{font:600 21px Consolas,monospace;color:var(--lime)}.environment-grid dd{margin:10px 0 0;color:var(--muted);font-size:12px}.setup-manifesto{padding:70px 0 10px;max-width:750px}.setup-manifesto h2{font:700 clamp(48px,6vw,76px)/1.02 'Barlow Condensed',Impact,sans-serif}.setup-manifesto>p:not(.eyebrow){color:var(--muted);max-width:590px;margin-bottom:28px}
@media(max-width:1100px){.header{height:auto;min-height:100px;flex-wrap:wrap;gap:18px;padding-block:20px}.header nav{order:3;width:100%;overflow-x:auto;justify-content:flex-start;padding:8px 2px}.header nav a:nth-child(n){display:block}.setup-card{grid-column:span 3}}
@media(max-width:760px){.setup-intro{grid-template-columns:1fr;padding:45px 0;gap:22px}.setup-intro h1{letter-spacing:-1px}.setup-intro>.eyebrow{margin-bottom:0}.setup-lead p{font-size:15px}.setup-grid{grid-template-columns:1fr}.setup-card,.setup-card.gpu{grid-column:span 1;min-height:0;padding:24px}.setup-index{margin-bottom:38px}.setup-environment{grid-template-columns:1fr;gap:20px;margin-top:40px;padding-block:35px}.environment-grid{gap:10px}.environment-grid>div{padding:17px}.environment-grid dt{font-size:17px}.setup-section-label{flex-wrap:wrap}.setup-manifesto{padding-top:45px}}