:root{--bg:#0b1020;--panel:#101830;--border:#223;--text:#e6eaf2;--muted:#9aa4c3;--brand:#6ea8fe;--accent:#7c3aed;--ok:#16a34a;--bad:#ef4444}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:linear-gradient(180deg,#0b1020,#0f1530);color:var(--text);font-family:Inter,system-ui,Segoe UI,Roboto,Arial,sans-serif}.app-shell{min-height:100vh;display:flex;flex-direction:column}.app-header{position:sticky;top:0;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#0b102099;border-bottom:1px solid var(--border);padding:12px 16px;z-index:10}.brand{font-weight:700;letter-spacing:.4px;color:var(--brand)}.app-main{flex:1;padding:24px}.auth-wrap{display:grid;place-items:center;min-height:70vh}.card{background:linear-gradient(180deg,#101830,#0e1530);border:1px solid var(--border);border-radius:12px;box-shadow:0 6px 24px #00000059;padding:24px;max-width:420px;width:100%}.card-title{margin:0 0 6px;font-size:22px}.muted{color:var(--muted)}.small{font-size:12px}.form{display:flex;flex-direction:column;gap:6px;margin-top:12px}.label{font-size:12px;color:var(--muted)}.input{background:#0c1224;color:var(--text);border:1px solid var(--border);border-radius:8px;padding:10px 12px;outline:0}.input:focus{border-color:#2f3b77;box-shadow:0 0 0 3px #6ea8fe1f}.btn{appearance:none;background:linear-gradient(180deg,#6ea8fe,#4c79e6);border:0;color:#fff;border-radius:8px;padding:10px 14px;font-weight:600;cursor:pointer}.btn[disabled]{opacity:.6;cursor:not-allowed}.btn.subtle{background:#0e1733;border:1px solid var(--border);color:var(--muted)}.row{display:flex;gap:8px;align-items:center}.space-between{justify-content:space-between}.checkbox{display:flex;gap:6px;align-items:center;color:var(--muted);font-size:12px}.error{margin-top:10px;color:#ff6b6b;background:#2b0e10;border:1px solid #5c1a21;border-radius:8px;padding:8px 10px}.chat-grid{display:grid;grid-template-columns:280px 1fr;gap:16px}.panel{background:linear-gradient(180deg,#101830,#0e1530);border:1px solid var(--border);border-radius:12px;box-shadow:0 6px 24px #00000040;overflow:hidden;display:flex;flex-direction:column;min-height:70vh}.panel-header{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border-bottom:1px solid var(--border)}.title{font-weight:600}.panel-body{padding:12px;overflow:auto}.panel-footer{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border-top:1px solid var(--border)}.select{width:100%;margin-bottom:8px;background:#0c1224;border:1px solid var(--border);color:var(--text);border-radius:8px;padding:8px}.user-list{list-style:none;margin:0;padding:0;border:1px solid var(--border);border-radius:8px}.user-item{display:flex;gap:8px;align-items:center;padding:8px 10px;border-bottom:1px solid var(--border)}.user-item:last-child{border-bottom:0}.dot{display:inline-block;width:8px;height:8px;border-radius:999px;background:#64748b}.online{background:var(--ok)}.status{font-size:12px;color:var(--muted)}.status.ok{color:var(--ok)}.status.bad{color:var(--bad)}.messages{flex:1;overflow:auto;padding:12px;display:flex;flex-direction:column;gap:8px}.msg{background:#0c1224;border:1px solid var(--border);border-radius:10px;padding:8px 10px}.msg.pm{border-color:#6d28d9}.sys{color:var(--muted);font-style:italic;font-size:12px}.meta{display:flex;gap:8px;align-items:center;color:#cbd5e1;font-size:12px}.time{color:#94a3b8}.pill{background:#6d28d9;color:#fff;border-radius:999px;padding:2px 8px;font-size:10px}.body{margin-top:4px}.composer{display:flex;gap:8px;border-top:1px solid var(--border);padding:12px}@media(max-width:900px){.chat-grid{grid-template-columns:1fr}.panel{min-height:60vh}}