:root{--navy:#232F5A;--deep:#15203F;--ink:#1C2333;--mute:#5B6478;--line:#D9DEE8;--surface:#EEF1F6;--green:#1F7A4D}
*{box-sizing:border-box}body{margin:0;font:16px/1.65 "IBM Plex Sans",system-ui,sans-serif;color:var(--ink);background:#fff}
h1,h2,h3{font-family:"Bricolage Grotesque","IBM Plex Sans",sans-serif;font-weight:600;letter-spacing:-.01em;margin:0}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}.narrow{max-width:760px}
header{background:var(--deep);color:#fff}nav{display:flex;align-items:center;justify-content:space-between;height:68px}
nav .logo{font-family:"Bricolage Grotesque";font-weight:600;font-size:22px;text-decoration:none;color:#fff}
nav ul{list-style:none;display:flex;gap:26px;margin:0;padding:0}nav a{color:#fff;text-decoration:none;opacity:.85}nav a:hover{opacity:1}
.page{padding:56px 0 80px}.page h1{font-size:clamp(32px,4vw,44px);line-height:1.1;margin-bottom:10px}.page .sub{color:var(--mute);margin:0 0 36px}
.page h2{font-size:24px;margin:40px 0 10px}.page h3{font-size:18px;margin:26px 0 6px}.page p,.page li{max-width:70ch}
.page a{color:var(--navy)}pre{background:var(--surface);border-radius:10px;padding:16px;font:13.5px/1.55 ui-monospace,Menlo,monospace;overflow:auto}
code{font:.92em ui-monospace,Menlo,monospace;background:var(--surface);padding:1px 5px;border-radius:4px}
table{width:100%;border-collapse:collapse;font-size:15px;margin:10px 0 20px}td,th{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line);vertical-align:top}th{font-weight:600}
.toc{background:var(--surface);border-radius:10px;padding:16px 20px;margin-bottom:28px}.toc a{display:inline-block;margin:2px 14px 2px 0}

#cookie{position:fixed;left:16px;right:16px;bottom:16px;max-width:560px;margin:0 auto;background:var(--deep);color:#fff;border-radius:12px;padding:16px 18px;display:none;gap:14px;align-items:center;flex-wrap:wrap;box-shadow:0 18px 50px rgba(0,0,0,.3);z-index:50;font-size:14px}
#cookie.show{display:flex}#cookie p{margin:0;flex:1 1 280px}#cookie a{color:#fff}
#cookie button{font:inherit;border:0;border-radius:8px;padding:9px 14px;cursor:pointer}#cookie .yes{background:#fff;color:var(--deep);font-weight:600}#cookie .no{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45)}
@media(max-width:700px){nav ul{gap:14px;font-size:14px}}
/* brand mark + PCL-style footer */
.mark{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:#fff;font-family:"Bricolage Grotesque";font-weight:600;font-size:21px}
.mark .tile{width:34px;height:34px;border-radius:9px;background:#fff;display:inline-flex;align-items:center;justify-content:center;flex:none}
.mark .tile svg{width:22px;height:22px}
footer.site{background:var(--deep);color:#C9D1E3;border:0;padding:56px 0 36px;font-size:15px;margin-top:0}
footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;max-width:1120px;margin:0 auto;padding:0 24px}
footer.site .about p{max-width:46ch;margin:14px 0 0;line-height:1.55}
footer.site h4{font:600 15px "IBM Plex Sans";color:#fff;margin:0 0 12px}footer.site ul{list-style:none;margin:0;padding:0}footer.site li{margin:0 0 10px}
footer.site a{color:#fff;text-decoration:none;margin:0}footer.site a:hover{text-decoration:underline}
footer.site .fine{max-width:1120px;margin:36px auto 0;padding:22px 24px 0;border-top:1px solid rgba(255,255,255,.18);font-size:13px;color:#A9B4CE;line-height:1.6}
@media(max-width:800px){footer.site .cols{grid-template-columns:1fr;gap:28px}}