.presence-chip{position:fixed;right:16px;bottom:16px;z-index:40;padding:8px 12px;border:1px solid rgba(24,92,65,.18);border-radius:999px;background:rgba(255,255,255,.94);box-shadow:0 6px 22px rgba(21,47,37,.12);color:#185c41;font:700 12px/1.3 system-ui,-apple-system,sans-serif;backdrop-filter:blur(8px)}
@media(max-width:640px){.presence-chip{right:10px;bottom:10px;max-width:calc(100vw - 20px)}}