/* Hallmark component: preserve BWT tokens; static first impression and accessible downloads. */
/* Review: no scroll gate, sticky navigation after intro, no new visual theme. */
.topbar{position:sticky;top:0;z-index:100;background:linear-gradient(var(--color-paper),var(--color-paper-2));border-block:1px solid var(--color-rule);height:76px}
.topbar .header-logo .logo-frame{margin:0}
@media(max-width:768px){.topbar{height:64px}.topbar nav{display:flex}.topbar nav .nav-play{display:block}}
@media(prefers-reduced-motion:reduce){.topbar{animation:none;transition:none}}