*{box-sizing:border-box;margin:0;padding:0}
:root{--bg:#fafaf9;--card:#fff;--border:#e7e5e4;--text:#1c1917;--muted:#57534e;--accent:#7c3aed}
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');
body{font-family:'Inter',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.75}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:760px;margin:0 auto;padding:40px 20px 100px}
h1{font-size:2em;font-weight:800;margin-bottom:12px;letter-spacing:-.02em;line-height:1.2}
h2{font-size:1.4em;font-weight:700;margin:36px 0 10px;padding-bottom:8px;border-bottom:2px solid var(--accent)}
h3{font-size:1.12em;font-weight:700;margin:24px 0 6px}
p,li{font-size:1em;margin-bottom:12px;color:var(--text)}
ul,ol{padding-left:24px;margin-bottom:12px}
li{margin-bottom:6px}
.lead{font-size:1.1em;color:var(--muted)}
.back{display:inline-block;margin-bottom:20px;font-weight:600}
.meta{font-size:.85em;color:var(--muted);margin-bottom:28px}
table{width:100%;border-collapse:collapse;margin:16px 0;font-size:.92em}
th,td{border:1px solid var(--border);padding:10px 12px;text-align:left}
th{background:rgba(124,58,237,.08);font-weight:700}
.callout{background:rgba(124,58,237,.06);border-left:3px solid var(--accent);border-radius:0 10px 10px 0;padding:14px 18px;margin:18px 0}
.callout strong{color:var(--text)}
nav.crumbs{font-size:.85em;color:var(--muted);margin-bottom:24px}
.toc{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px 22px;margin:24px 0}
.toc h4{font-size:.95em;margin-bottom:8px}
.toc ul{margin-bottom:0}
.guide-card{display:block;padding:20px 22px;background:var(--card);border:1px solid var(--border);border-radius:14px;margin-bottom:14px;transition:all .15s}
.guide-card:hover{border-color:var(--accent);text-decoration:none;transform:translateY(-2px);box-shadow:0 4px 16px rgba(124,58,237,.1)}
.guide-card h3{margin:0 0 4px;color:var(--text)}
.guide-card p{margin:0;color:var(--muted);font-size:.92em}
.byline{display:flex;flex-wrap:wrap;gap:6px 10px;align-items:center;font-size:.85em;color:var(--muted);margin:-18px 0 28px;padding-bottom:18px;border-bottom:1px solid var(--border)}
.byline strong{color:var(--text)}
.byline .dot{opacity:.5}
.faq{margin:14px 0}
.faq details{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:2px 16px;margin-bottom:10px}
.faq summary{font-weight:600;cursor:pointer;padding:12px 0;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:'+ ';color:var(--accent);font-weight:800}
.faq details[open] summary::before{content:'\2212 '}
.faq details[open] summary{border-bottom:1px solid var(--border)}
.faq details p{padding:12px 0 4px;margin:0}
.key-takeaways{background:rgba(124,58,237,.06);border:1px solid var(--border);border-radius:12px;padding:18px 22px;margin:24px 0}
.key-takeaways h4{margin:0 0 8px;font-size:.95em}
.key-takeaways ul{margin-bottom:0}
@media(prefers-color-scheme:dark){:root{--bg:#1a1a1a;--card:#262626;--border:#3f3f3f;--text:#e5e5e5;--muted:#a3a3a3}th{background:rgba(124,58,237,.15)}}