/* Original Black Hole AI artwork; event-horizon motion adapted from FACTORY-XYZ.
   The O alone moves. The Factory's crossing orbital ring is intentionally absent. */
.bh-wordmark{position:relative;display:block;width:100%;aspect-ratio:337/67;isolation:isolate;background:#000;border-radius:3px}
.bh-wordmark>img{display:block;width:100%;height:auto;aspect-ratio:337/67;mask-image:radial-gradient(ellipse 6.85% 34.5% at 61.6% 40.3%,transparent 96%,#000 100%)}
.bh-wordmark .bh-brand-hole{position:absolute;left:55.96%;top:12%;width:11.28%;aspect-ratio:1;border-radius:50%;background:#02030b;border:1px solid #8d8aff;box-shadow:0 0 5px #6787ff,0 0 9px #6d3de788,inset 0 0 4px #72d9ff}
.bh-brand-hole>span{position:absolute;inset:-12%;border-radius:50%;background:conic-gradient(from 20deg,transparent 5%,#6273ff 18%,#ebfaff 24%,#40d5ff 29%,transparent 39%,transparent 56%,#7b37f6 70%,#f1b8ff 77%,#5187ff 82%,transparent 95%);mask:radial-gradient(circle,transparent 49%,#000 53%,#000 64%,transparent 72%);animation:bh-event-horizon 7s linear infinite}
body .brand.bh-brand{display:block;flex:none;width:294px;max-width:100%;padding:0;line-height:1;letter-spacing:normal;gap:0}
body .site-header .brand.bh-brand{width:294px}
body .site-footer .brand.bh-brand{width:294px;display:block}
body .p4-support-foot .support-owner-login{font-size:11px;font-weight:500;color:#bac7de;text-decoration:none;white-space:nowrap;min-width:auto;min-height:32px;display:inline-flex;align-items:center;padding:6px 4px;border-bottom:1px solid transparent}
body .p4-support-foot .support-owner-login:hover{color:#fff;border-bottom-color:#b597e2}
body .p4-support-foot .support-owner-login:focus-visible{outline:2px solid #bca0ee;outline-offset:3px}
@keyframes bh-event-horizon{to{transform:rotate(360deg)}}
@media(min-width:1100px){body .site-header .brand.bh-brand{width:100%;margin:0 0 6px}}
@media(max-width:700px){body .site-header .brand.bh-brand,body>header .brand.bh-brand{width:min(260px,calc(100vw - 125px));flex:none}body .p4-support-foot .support-owner-login{min-height:44px}}
@media(prefers-reduced-motion:reduce){.bh-brand-hole>span{animation:none}}
/* The artwork remains a single wide mark in the compact mobile masthead. */
@media(max-width:700px){body .masthead .brand.bh-brand{width:min(248px,calc(100vw - 125px));flex:none}}