.presentation-bar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px max(16px,env(safe-area-inset-left));background:#fff;border-bottom:1px solid #bbb;color:#222;font:600 15px system-ui}.presentation-bar a{color:#111;padding:10px 15px;border:1px solid #555;border-radius:4px;text-decoration:none}.presentation-bar a:hover{background:#eee}.presentation-bar a:focus-visible{outline:3px solid #3159ac;outline-offset:3px}body>header .brand img{filter:grayscale(1)}@media print{.presentation-bar{display:none}}