*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #0f1117;--bg2: #1a1d27;--bg3: #22263a;--border: #2e3350;--text: #e2e8f0;--muted: #8892b0;--accent: #60a5fa}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);height:100dvh;overflow:hidden}.join-screen{display:flex;align-items:center;justify-content:center;height:100dvh}.join-card{background:var(--bg2);border:1px solid var(--border);border-radius:20px;padding:48px 40px;width:360px;text-align:center}.logo{font-size:48px;margin-bottom:12px}.join-card h1{font-size:24px;font-weight:700;margin-bottom:8px}.join-card p{color:var(--muted);font-size:14px;margin-bottom:28px}.join-card input{width:100%;padding:12px 16px;background:var(--bg3);border:1px solid var(--border);border-radius:10px;color:var(--text);font-size:15px;margin-bottom:12px;outline:none;transition:border-color .2s}.join-card input:focus{border-color:var(--accent)}.join-card button{width:100%;padding:12px;background:var(--accent);color:#fff;border:none;border-radius:10px;font-size:15px;font-weight:600;cursor:pointer;transition:opacity .2s}.join-card button:disabled{opacity:.4;cursor:not-allowed}.chat-layout{display:flex;height:100dvh}.sidebar{width:220px;background:var(--bg2);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:18px 16px 14px;font-weight:700;font-size:15px;border-bottom:1px solid var(--border)}.dot{width:8px;height:8px;border-radius:50%}.dot-connected{background:#34d399}.dot-connecting{background:#fbbf24}.dot-disconnected,.dot-error{background:#f87171}.sidebar-section{padding:12px 16px 6px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}.user-list{list-style:none;padding:0 8px;overflow-y:auto;flex:1}.user-item{display:flex;align-items:center;gap:10px;padding:8px;border-radius:8px}.user-avatar{width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:#fff;flex-shrink:0}.user-name{font-size:14px;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.you-badge{font-size:10px;background:var(--bg3);color:var(--muted);border-radius:4px;padding:1px 5px}.chat-main{flex:1;display:flex;flex-direction:column;min-width:0}.messages{flex:1;overflow-y:auto;padding:20px 16px;display:flex;flex-direction:column;gap:8px}.sys-msg{text-align:center;font-size:12px;color:var(--muted);padding:4px 0}.msg-row{display:flex;align-items:flex-end;gap:8px}.msg-row.me{flex-direction:row-reverse}.msg-avatar{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:#fff;flex-shrink:0}.msg-bubble-wrap{display:flex;flex-direction:column;max-width:65%;gap:3px}.me .msg-bubble-wrap{align-items:flex-end}.msg-name{font-size:12px;font-weight:600;padding-left:4px}.msg-bubble{background:var(--bg3);border-radius:16px;padding:10px 14px;font-size:14px;line-height:1.5;word-break:break-word}.me .msg-bubble{color:#fff}.msg-time{font-size:11px;color:var(--muted);padding:0 4px}.msg-form{display:flex;gap:10px;padding:14px 16px;border-top:1px solid var(--border);background:var(--bg2)}.msg-form input{flex:1;padding:11px 16px;background:var(--bg3);border:1px solid var(--border);border-radius:10px;color:var(--text);font-size:14px;outline:none;transition:border-color .2s}.msg-form input:focus{border-color:var(--accent)}.msg-form button{padding:11px 20px;background:var(--accent);color:#fff;border:none;border-radius:10px;font-weight:600;font-size:14px;cursor:pointer;transition:opacity .2s}.msg-form button:disabled{opacity:.4;cursor:not-allowed}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}