:root{--bg: #000000;--card: #000000;--border: #262626;--text: #ffffff;--muted: #a8a8a8;--blue: #0095f6;--red: #ed4956;--avatar-1: #f58529;--avatar-2: #dd2a7b;--avatar-3: #8134af;--avatar-4: #515bd4;--avatar-5: #00b894;--avatar-6: #0984e3;--avatar-7: #6c5ce7;--avatar-8: #e17055}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}img{max-width:100%;display:block}button{font:inherit}.avatar{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:20px;border:2px solid var(--card);box-shadow:0 0 0 2px currentColor}.empty{text-align:center;padding:60px 20px;color:var(--muted)}.topbar{position:sticky;top:0;z-index:20;background:var(--card);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:10px 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