:root{--bg:#0f1216;--panel:#171b21;--panel-2:#1e242c;--border:#2a323d;--text:#e7ecf1;--muted:#8b96a3;--accent:#22c55e;--accent-dark:#15803d;--danger:#ef4444;--amber:#f59e0b;--bubble-in:#1e242c;--bubble-out:#14532d}*{box-sizing:border-box}html,body{height:100%}body{background:var(--bg);color:var(--text);margin:0;font:14px/1.45 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.hidden{display:none!important}button{cursor:pointer;font:inherit}button:disabled{cursor:default;opacity:.6}input,textarea,select{font:inherit;color:var(--text);background:var(--panel-2);border:1px solid var(--border);border-radius:8px;outline:none;padding:8px 10px}input:focus,textarea:focus,select:focus{border-color:var(--accent-dark)}.login-view{justify-content:center;align-items:center;min-height:100vh;display:flex}.login-card{background:var(--panel);border:1px solid var(--border);text-align:center;border-radius:14px;flex-direction:column;gap:12px;width:320px;padding:32px;display:flex}.login-card h1{margin:0;font-size:22px}.login-card h1 span,.sidebar-header h1 span{color:var(--accent)}.login-card p{color:var(--muted);margin:0 0 8px}.login-card button,.primary-btn{background:var(--accent-dark);color:#fff;border:none;border-radius:8px;padding:10px}.login-card button:hover,.primary-btn:hover{background:#166534}.form-error{color:var(--danger);font-size:13px}.app{height:100vh;display:flex}.sidebar{background:var(--panel);border-right:1px solid var(--border);flex-direction:column;width:340px;min-width:280px;display:flex;overflow:hidden}.sidebar-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:14px 16px;display:flex}.sidebar-header h1{margin:0;font-size:17px}.section-title{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;justify-content:space-between;align-items:center;padding:12px 16px 6px;font-size:11px;display:flex}.small-btn,.ghost-btn{background:var(--panel-2);border:1px solid 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7px;font-size:10px}.badge.unread{background:var(--accent-dark);border-color:var(--accent-dark);color:#fff;font-weight:700}.badge.ai{color:var(--accent);border-color:var(--accent-dark)}.badge.human{color:var(--amber);border-color:var(--amber)}.badge.instance{background:var(--panel-2);color:var(--text);text-overflow:ellipsis;white-space:nowrap;max-width:90px;overflow:hidden}.empty{color:var(--muted);text-align:center;padding:24px;font-size:13px}.chat{flex-direction:column;flex:1;min-width:0;display:flex}.chat-empty{color:var(--muted);flex:1;justify-content:center;align-items:center;display:flex}.chat-panel{flex-direction:column;flex:1;min-height:0;display:flex}.chat-header{border-bottom:1px solid var(--border);background:var(--panel);justify-content:space-between;align-items:center;gap:12px;padding:12px 18px;display:flex}.chat-title{flex-direction:column;min-width:0;display:flex}.chat-title small{color:var(--muted)}.back-btn{flex:none;display:none}.chat-actions{flex:none;align-items:center;gap:12px;display:flex}.ai-toggle{color:var(--muted);-webkit-user-select:none;user-select:none;align-items:center;gap:6px;font-size:13px;display:flex}.ai-toggle input{accent-color:var(--accent)}.messages{flex-direction:column;flex:1;gap:8px;padding:18px;display:flex;overflow-y:auto}.msg{white-space:pre-wrap;word-break:break-word;border-radius:12px;max-width:68%;padding:8px 12px}.msg.inbound{background:var(--bubble-in);border-bottom-left-radius:4px;align-self:flex-start}.msg.outbound{background:var(--bubble-out);border-bottom-right-radius:4px;align-self:flex-end}.msg .meta{color:var(--muted);text-align:right;margin-top:4px;font-size:10.5px;display:block}.msg .media-link{color:var(--accent);word-break:break-all;margin-top:6px;font-size:13px;text-decoration:none;display:block}.msg .media-link:hover{text-decoration:underline}.msg .via-badge{border:1px solid var(--border);color:var(--muted);background:#0000002e;border-radius:999px;margin-top:6px;padding:1px 7px;font-size:10px;display:inline-block}.chat-error{border-top:1px solid var(--border);background:#ef444414;padding:8px 18px}.composer{border-top:1px solid var(--border);background:var(--panel);gap:10px;padding:12px 18px;display:flex}.composer textarea{resize:none;flex:1;max-height:120px}.composer button{background:var(--accent-dark);color:#fff;border:none;border-radius:8px;padding:0 20px}.composer button:hover{background:#166534}.modal{z-index:10;background:#000000a6;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal-card{background:var(--panel);border:1px solid var(--border);text-align:center;border-radius:14px;flex-direction:column;gap:12px;width:320px;padding:26px;display:flex}.modal-card h2{margin:0;font-size:17px}#qr-name-step{flex-direction:column;gap:10px;display:flex}#qr-image{background:#fff;border-radius:10px;width:230px;margin:0 auto;padding:6px}.qr-status{color:var(--muted);margin:0;font-size:12.5px}.qr-status.connected{color:var(--accent);font-weight:600}#new-conv-message{resize:vertical}@media (width<=760px){.sidebar{border-right:none;width:100%;min-width:0}.chat,.app.chat-open .sidebar{display:none}.app.chat-open .chat{width:100%;display:flex}.back-btn{display:inline-block}.msg{max-width:85%}}