body { background:#07070d}
.site-nav { background:rgba(7,7,13,.96); border-bottom:1px solid var(--border)}
.sample-hero { padding:150px 24px 66px; text-align:center; background:radial-gradient(ellipse at 50% 0%,rgba(139,53,255,.16),transparent 65%); border-bottom:1px solid var(--border)}
.sample-hero h1 { font-size:clamp(42px,6.2vw,76px); line-height:1.04; letter-spacing:-.055em; margin:0 auto 24px}
.sample-hero p:not(.eyebrow) { max-width:650px; margin:0 auto; color:var(--text-secondary); font-size:18px; line-height:1.75}
.sample-hero .sample-meta { font:12px/1.5 var(--font-mono); margin-top:24px; color:#a5afc0}
.sample-layout { display:grid; grid-template-columns:210px minmax(0,740px); gap:70px; justify-content:center; padding-block:64px 90px}
.reading-nav { position:sticky; top:112px; align-self:start; font-size:13px}
.reading-nav a { display:block; color:var(--text-secondary); padding:10px 0}
.reading-nav a:hover { color:var(--cyan)}
.reading-nav .eyebrow { margin-bottom:12px}
.reading-nav .download-link { border-top:1px solid var(--border); margin-top:18px; padding-top:22px; color:var(--cyan)}
.sample-body { min-width:0; font-size:18px; line-height:1.85; color:#bbc5d5}
.sample-body p { margin-bottom:24px}
.sample-body strong { color:var(--text-primary); font-weight:700}
.sample-body h2,.sample-body h3,.sample-body h4 { color:var(--text-primary); line-height:1.25; letter-spacing:-.025em}
.sample-body h2 { font-size:34px; margin-bottom:24px}
.sample-body h3 { font-size:27px; margin-bottom:24px}
.sample-body h4 { font-size:21px; margin:36px 0 15px}
.sample-body .introduction { font-size:20px; scroll-margin-top:105px}
.scope { margin:42px 0 48px; border:1px solid var(--border); border-radius:16px; background:var(--bg-secondary); padding:8px 28px}
.scope article { padding:24px 0}
.scope article+article { border-top:1px solid var(--border)}
.scope h2 { font-size:16px; color:var(--cyan); letter-spacing:0; margin-bottom:14px}
.scope p { margin:0; font-size:16px; line-height:1.8}
.sample-body>nav { display:none}
.chapter { border-top:1px solid var(--border); padding-top:42px}
.sample-body .chapter-title { font-size:44px; margin-top:10px}
.lead { font-size:19px; color:var(--text-secondary)}
.sample-body .section { padding:48px 0 0; scroll-margin-top:90px}
.number { font:12px/1.5 var(--font-mono); letter-spacing:.12em; color:var(--cyan); display:block; margin-bottom:15px}
.callout { border-left:2px solid var(--cyan); padding:22px 26px; margin:30px 0; background:#0d1521; border-radius:0 10px 10px 0; font-size:16px; line-height:1.85}
.callout-header { font:700 11px/1.5 var(--font-mono); text-transform:uppercase; letter-spacing:.12em; color:var(--cyan); margin-bottom:12px}
.callout-icon { display:none}
.callout-mistake { border-color:#eab308; background:#19170f}
.callout-mistake .callout-header { color:#eab308}
.callout-example { border-color:#a78bfa; background:#141021}
.callout-example .callout-header { color:#bba3ff}
.sample-body ul { list-style:disc; padding-left:25px; margin:24px 0}
.sample-body li { padding-left:5px; margin-bottom:12px}
.sample-cta { margin-top:65px; border:1px solid var(--border-light); border-radius:18px; padding:36px; background:linear-gradient(135deg,rgba(0,200,255,.06),rgba(139,53,255,.06))}
.sample-cta p { font-size:17px}
.notice { margin-top:50px; padding-top:32px; border-top:1px solid var(--border); font-size:13px; line-height:1.8; color:var(--text-secondary)}
.notice h2 { font-size:18px}
.sample-footer { border-top:1px solid var(--border); padding:32px 0; background:#06060b}
.sample-footer .shell { display:flex; align-items:center; justify-content:space-between; gap:20px}
.sample-footer p { font-size:12px; color:var(--text-secondary)}
a:focus-visible,button:focus-visible { outline:2px solid var(--cyan); outline-offset:5px}
@media(max-width:950px) { .sample-layout { grid-template-columns:minmax(0,740px); gap:28px}
.reading-nav { position:static; display:flex; flex-wrap:wrap; gap:8px 20px; padding-bottom:24px; border-bottom:1px solid var(--border)}
.reading-nav .eyebrow { width:100%; margin:0}
.reading-nav a { padding:2px 0}
.reading-nav .download-link { display:none}
.sample-hero { padding-top:125px}
}
@media(max-width:600px) { .sample-hero { padding:115px 22px 44px}
.sample-layout { padding-top:30px}
.sample-body { font-size:17px}
.sample-body .chapter-title { font-size:34px}
.sample-body h3 { font-size:25px}
.scope { padding-inline:20px}
.sample-cta { padding:24px}
.sample-footer .shell { align-items:flex-start; flex-direction:column}
.sample-body .introduction { font-size:18px}
}
@media(prefers-reduced-motion:reduce) { html { scroll-behavior:auto}
}

.sample-footer nav { font-size: 13px; color: var(--text-secondary); }