.demo-badge{position:fixed;right:18px;bottom:18px;z-index:99;background:#111827;color:white;padding:10px 14px;border-radius:999px;font:600 12px/1.2 system-ui;box-shadow:0 12px 32px rgba(0,0,0,.24);text-decoration:none}.demo-badge:hover{transform:translateY(-2px)}
.reveal{opacity:0;transform:translateY(18px);transition:.7s ease}.reveal.show{opacity:1;transform:none}