:root{--bg: #0b1220;--bg2: #121b2e;--bg3: #18233a;--line: #2a3a58;--text: #e8eefc;--muted: #8ea0c0;--accent: #3ee0c5;--accent2: #6d8bff;--danger: #ff6b7a;--ok: #5ee29a;--radius: 14px;font-family:Segoe UI,system-ui,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;background:var(--bg);color:var(--text)}button,input,textarea,select{font:inherit;color:inherit}a{color:var(--accent)}.auth{min-height:100%;display:grid;place-items:center;background:radial-gradient(1200px 600px at 20% -10%,#1b3a55,transparent),var(--bg);padding:24px}.card{width:min(420px,100%);background:var(--bg2);border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:0 20px 60px #0006}.logo{font-size:28px;font-weight:800;letter-spacing:.04em}.logo span{color:var(--accent)}.row{display:flex;gap:8px;align-items:center}.col{display:flex;flex-direction:column;gap:10px}label{font-size:13px;color:var(--muted)}input,textarea,select{background:var(--bg3);border:1px solid var(--line);border-radius:10px;padding:10px 12px;width:100%}.btn{background:linear-gradient(135deg,var(--accent),#2bb8c9);color:#042226;border:0;border-radius:10px;padding:10px 14px;font-weight:700;cursor:pointer}.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}.btn.danger{background:var(--danger);color:#2b0a10}.btn.small{padding:6px 10px;font-size:13px}.app{display:grid;grid-template-columns:320px 1fr;height:100%}.sidebar{background:var(--bg2);border-right:1px solid var(--line);display:flex;flex-direction:column;min-width:0}.side-head{padding:14px;border-bottom:1px solid var(--line)}.chat-list{overflow:auto;flex:1}.chat-item{padding:12px 14px;cursor:pointer;border-bottom:1px solid #1c2942;display:flex;gap:10px}.chat-item.active,.chat-item:hover{background:var(--bg3)}.avatar{width:42px;height:42px;border-radius:50%;background:#243656;display:grid;place-items:center;font-weight:700;flex:none;overflow:hidden}.avatar img{width:100%;height:100%;object-fit:cover}.muted{color:var(--muted);font-size:13px}.unread{background:var(--accent);color:#042226;border-radius:99px;min-width:20px;height:20px;font-size:12px;display:grid;place-items:center;padding:0 6px;font-weight:700}.main{display:flex;flex-direction:column;min-width:0}.top{padding:12px 16px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:8px}.msgs{flex:1;overflow:auto;padding:16px;display:flex;flex-direction:column;gap:8px}.bubble{max-width:min(640px,86%);padding:8px 12px;border-radius:14px;background:var(--bg3);border:1px solid var(--line)}.bubble.mine{align-self:flex-end;background:#17364a;border-color:#24586c}.composer{padding:12px;border-top:1px solid var(--line);display:flex;gap:8px;align-items:flex-end}.badge{color:var(--accent2);font-size:14px}.org{font-size:12px;color:var(--muted)}.modal-back{position:fixed;top:0;right:0;bottom:0;left:0;background:#0008;display:grid;place-items:center;z-index:40;padding:16px}.modal{background:var(--bg2);border:1px solid var(--line);border-radius:16px;padding:20px;width:min(640px,100%);max-height:90vh;overflow:auto}.tabs{display:flex;gap:6px;flex-wrap:wrap}.tab{padding:8px 10px;border-radius:8px;border:1px solid var(--line);background:transparent;cursor:pointer}.tab.on{background:var(--bg3);border-color:var(--accent)}.grid-stats{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px}.stat{background:var(--bg3);border:1px solid var(--line);border-radius:12px;padding:12px}.bar{height:8px;background:#244;border-radius:9px;overflow:hidden;margin-top:8px}.bar>i{display:block;height:100%;background:var(--accent)}.call-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#05070dcc;z-index:50;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px}video.local{width:180px;border-radius:12px;position:absolute;right:16px;bottom:16px}video.remote{width:min(900px,92vw);max-height:70vh;background:#000;border-radius:16px}.footer{font-size:12px;color:var(--muted);padding:10px 14px;border-top:1px solid var(--line)}.err{color:var(--danger);font-size:13px}.wave{height:28px;display:flex;gap:2px;align-items:flex-end}.wave span{width:3px;background:var(--accent);display:block;border-radius:2px}@media(max-width:800px){.app{grid-template-columns:1fr}.sidebar{display:none}.sidebar.open{display:flex;position:absolute;top:0;right:0;bottom:0;left:0;z-index:20}}