/* Shared public-site header and footer. This client guide has no inbound public navigation link. */
.site-shell{--bg:#080808;--ink:#f2efea;--mute:#b3ada7;--line:#383330;--acid:#d0cbc4;--mono:ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.6}
html{scroll-padding-top:125px}.diagram-card{top:120px}
.topline.site-shell{background:#101010;color:#c4bbb2;border-bottom:1px dashed #53473c;text-align:center;padding:8px 20px;font:11px/1.5 var(--mono);letter-spacing:.14em;text-transform:uppercase}
header.site-shell{height:auto;display:block;position:sticky;top:0;z-index:20;padding:0;background:#080808f5;backdrop-filter:blur(16px);border-bottom:1px solid #373330}
.site-shell .wrap{max-width:1600px;margin:auto;padding-inline:5vw}
header.site-shell .nav{display:flex;align-items:center;gap:32px;min-height:96px;padding-block:16px;font-size:16px;color:var(--ink)}
.site-shell .brand{font-weight:900;font-size:25px;letter-spacing:-1.4px;line-height:1;white-space:nowrap;gap:0;display:block}
header.site-shell .brand{display:flex;flex-direction:column;gap:6px;flex-shrink:0}
.site-shell .brand-logo{display:block;width:240px;height:auto;filter:brightness(0) invert(1)}
header.site-shell .brand-logo{width:180px;max-width:100%;height:auto}
.site-shell .brand span{color:var(--acid)}
.site-shell .brand small{display:block;font:10px/1.5 var(--mono);letter-spacing:.2em;margin-top:8px;color:#aaa39b}
header.site-shell .brand small{margin-top:0;line-height:1.4}
.site-shell .brand-lockup{display:block;position:relative;width:fit-content;max-width:100%}
.site-shell .brand-lockup .brand-logo{clip-path:inset(0 0 0 25%);transform:scale(.78);transform-origin:25% 50%}
.site-shell .brand-lockup .brand-mark{position:absolute;left:0;top:1%;width:23.4%;height:auto;aspect-ratio:1;display:block;filter:none;border:1px solid #56524d;border-radius:20%;box-shadow:0 2px 8px #0005;background:#252525}
.site-shell .navlinks{display:flex;gap:30px;margin-left:auto;font-size:14px}
.site-shell .navlinks a{position:relative}.site-shell .navlinks a:after{content:'';position:absolute;left:0;right:100%;bottom:-6px;height:1px;background:var(--acid);transition:.2s}.site-shell .navlinks a:hover:after{right:0}.site-shell .navlinks a:hover{color:#fff}
.site-shell .button{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:48px;padding:12px 20px;border:1px solid #d1cbc3;background:linear-gradient(135deg,#efebe5,#bdb8b1);color:#141211;font-weight:700;font-size:13px;box-shadow:inset 0 1px 0 #ffffff75;transition:background .2s,color .2s,border-color .2s}.site-shell .button:hover{background:#fff;border-color:#fff}
.site-shell .menubtn{display:none;background:none;border:1px solid var(--line);color:var(--ink);padding:10px 14px}
.site-shell .lang{background:none;border:0;color:var(--mute);font:13px var(--mono);padding:5px;white-space:nowrap}.site-shell .lang[aria-pressed=true]{color:#fff}.site-shell .langbar{display:flex;gap:3px;margin-left:0}
footer.site-shell{border-top:1px solid var(--line);padding:28px 5vw 145px;display:flex;justify-content:space-between;align-items:normal;gap:20px;color:var(--mute);font:12px/1.7 var(--mono);background:#090808}
footer.site-shell a{color:var(--ink)}footer.site-shell>span{width:auto;order:initial;font:inherit;color:inherit}footer.site-shell>a:last-child{font-size:20px;color:var(--ink)}
@media(max-width:1100px){header.site-shell .nav{gap:20px}.site-shell .navlinks{gap:18px}.site-shell .brand{font-size:22px}.site-shell .nav .button{display:none}}
@media(max-width:760px){.topline.site-shell{font-size:10px}header.site-shell .nav{min-height:84px;flex-wrap:wrap;gap:14px;padding-block:14px}.site-shell .brand-logo{width:175px}header.site-shell .brand-logo{width:160px}header.site-shell .brand small{font-size:8px}.site-shell .langbar{margin-left:auto}.site-shell .menubtn{display:block}.site-shell .navlinks{display:none;order:5;width:100%;margin:0;padding:0 0 20px;justify-content:space-between;font-size:14px}.site-shell .navlinks.open{display:flex}footer.site-shell{flex-direction:column;gap:15px}.diagram-card{top:auto}}
@media(max-width:480px){header.site-shell .nav{gap:8px;min-height:80px}header.site-shell .brand-logo{width:140px}header.site-shell .brand small{font-size:7px;letter-spacing:.12em}.site-shell .langbar{gap:2px}.site-shell .menubtn{font-size:12px;padding:7px 8px}.site-shell .navlinks.open{flex-wrap:wrap;gap:14px}}
@media print{.site-shell{display:none!important}}