@font-face{font-family:"IBM Plex Sans";src:local("IBM Plex Sans");font-display:swap}@font-face{font-family:"IBM Plex Mono";src:local("IBM Plex Mono");font-display:swap}
:root{--ink:#0a0a0a;--paper:#f5f5f0;--muted:#66645d;--line:#d8d6cd;--accent:#C8102E;--panel:#fffefa;--measure:780px;--sidebar:286px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"IBM Plex Sans",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.5;letter-spacing:0}
a{color:var(--ink);text-underline-offset:.18em}a:hover{color:var(--accent)}h1,h2,h3{font-family:"IBM Plex Sans",system-ui,sans-serif;letter-spacing:0;line-height:1.04;margin:0 0 .7rem}h1{font-size:clamp(2.35rem,6vw,5.2rem);max-width:920px}h2{font-size:clamp(1.35rem,2.4vw,2rem)}p{margin:0 0 1rem}.site-sidebar{position:fixed;inset:0 auto 0 0;width:var(--sidebar);padding:28px 22px;border-right:1px solid var(--line);background:rgba(245,245,240,.96);overflow:auto}
.brand{display:flex;gap:12px;align-items:center;text-decoration:none;margin-bottom:34px}.brand span{display:grid;place-items:center;width:46px;height:46px;border:1px solid var(--ink);color:var(--accent);font-family:"IBM Plex Mono",monospace;font-weight:700}.brand strong{font-size:.96rem;line-height:1.1}
nav{display:grid;gap:3px}nav a{padding:9px 10px;border-left:3px solid transparent;text-decoration:none;font-size:.94rem}nav a.is-active,nav a:hover{border-left-color:var(--accent);background:var(--panel);color:var(--ink)}.sidebar-note{margin-top:30px;color:var(--muted);font-size:.86rem}
.site-main{margin-left:var(--sidebar);min-height:100vh}.content-shell{max-width:var(--measure);padding:48px 32px 96px}.kicker{font-family:"IBM Plex Mono",ui-monospace,monospace;text-transform:uppercase;font-size:.78rem;color:var(--accent);letter-spacing:.08em}.deck{font-size:1.22rem;color:#2b2a27;max-width:720px}.terminal{background:#0a0a0a;color:#f5f5f0;padding:18px 20px;overflow:auto;border:1px solid #0a0a0a;margin:26px 0 18px;font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:.9rem}
.affiliate-box,.safety-note,.doc-section,.related,.faq-list article{border:1px solid var(--line);background:var(--panel);padding:18px 20px;margin:16px 0}.button{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--ink);background:transparent;color:var(--ink);padding:11px 14px;min-height:44px;text-decoration:none;cursor:pointer;font:inherit}.button:hover,.cta:hover{background:var(--ink);color:var(--paper)}.cta{margin-top:4px}.safety-note{border-color:var(--accent)}
.doc-section{position:relative;padding-top:24px}.section-number{font-family:"IBM Plex Mono",ui-monospace,monospace;color:var(--accent);display:block;margin-bottom:10px}.related div{display:grid;gap:8px}.site-footer{margin-left:var(--sidebar);border-top:1px solid var(--line);padding:22px 32px;color:var(--muted);font-size:.88rem}.admin-shell{max-width:900px;margin:0 auto;padding:42px 24px}.admin-shell textarea{display:block;width:100%;min-height:150px;margin:14px 0;background:var(--panel);border:1px solid var(--line);padding:12px;font-family:"IBM Plex Mono",monospace}.admin-shell select{display:block;margin:8px 0 16px;min-height:42px;padding:8px;border:1px solid var(--line);background:var(--panel)}.button-row{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}
@media (max-width:860px){.site-sidebar{position:static;width:auto;border-right:0;border-bottom:1px solid var(--line)}.site-main,.site-footer{margin-left:0}.content-shell{padding:32px 18px 70px}nav{grid-template-columns:repeat(2,minmax(0,1fr))}h1{font-size:2.45rem}.deck{font-size:1.08rem}}
@media (max-width:520px){nav{grid-template-columns:1fr}.brand span{width:40px;height:40px}.affiliate-box,.safety-note,.doc-section,.related,.faq-list article{padding:15px}.button-row{display:grid}.button{width:100%}}