:root{--primary: #2563eb;--primary-600: #1d4ed8;--text: #0f172a;--muted: #64748b;--agent-bubble: #f1f5f9;--guest-bubble: #2563eb;--border: #e2e8f0;--danger: #dc2626;--page-bg: #f1f5f9}*{box-sizing:border-box}html{height:100%;-webkit-text-size-adjust:100%;text-size-adjust:100%}html,body,#root{margin:0;height:100%}body{font-family:Segoe UI,Tahoma,Noto Kufi Arabic,Noto Sans Arabic,system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:#fff;-webkit-tap-highlight-color:transparent;overscroll-behavior:none}.app{width:100%;height:100vh;height:100dvh;display:flex;overflow:hidden;background:#fff}.app.center{align-items:center;justify-content:center;background:var(--page-bg);overflow:auto;padding:16px}.card{display:flex;flex-direction:column;background:#fff;min-height:0}.chat{width:100%;max-width:820px;height:100%;margin:0 auto;min-height:0}.brand{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--primary);font-size:14px}.brand-dot{width:10px;height:10px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px #2563eb26;flex-shrink:0}.muted{color:var(--muted);font-weight:400}.lab-chip{align-self:flex-start;margin-top:10px;background:#eff6ff;color:var(--primary-600);border:1px solid #bfdbfe;border-radius:8px;padding:4px 10px;font-size:12.5px;font-weight:700}.lab-tag{margin-inline-start:8px;background:#eff6ff;color:var(--primary-600);border:1px solid #bfdbfe;border-radius:999px;padding:2px 9px;font-size:11.5px;font-weight:700;white-space:nowrap}.intro{width:100%;max-width:420px;padding:26px 22px;border-radius:16px;box-shadow:0 12px 40px #0206171f;gap:4px}.intro h1{margin:8px 0 2px;font-size:22px}.intro label{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:600;color:#334155;margin-top:12px}input{width:100%;padding:12px 13px;border:1px solid var(--border);border-radius:10px;font-size:16px;font-weight:400;outline:none;transition:border-color .15s,box-shadow .15s}input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #2563eb26}button.primary{margin-top:16px;min-height:46px;background:var(--primary);color:#fff;border:none;padding:12px 18px;border-radius:10px;font-size:15px;font-weight:600;cursor:pointer;transition:background .15s;touch-action:manipulation}button.primary:hover:not(:disabled){background:var(--primary-600)}button.primary:active:not(:disabled){background:var(--primary-600)}button.primary:disabled{opacity:.55;cursor:default}.error{color:var(--danger);font-size:13px;margin-top:10px}.error.inline{padding:6px 16px 12px;margin:0}.chat-header{flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 16px;padding-top:calc(12px + env(safe-area-inset-top));border-bottom:1px solid var(--border);background:#fff}.status{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted);white-space:nowrap;flex-shrink:0}.status .dot{width:8px;height:8px;border-radius:50%;background:#94a3b8}.status.online .dot{background:#16a34a}.messages{flex:1 1 auto;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain;padding:14px 14px 8px;display:flex;flex-direction:column;gap:10px;background:#fbfcfe}.empty{text-align:center;margin:auto;font-size:14px;padding:20px;line-height:1.6}.msg{display:flex;flex-direction:column;max-width:85%}.msg.guest{align-self:flex-end;align-items:flex-end}.msg.agent{align-self:flex-start;align-items:flex-start}.msg.system{align-self:center;align-items:center;max-width:92%}.msg-author{font-size:11px;color:var(--muted);margin:0 4px 2px;font-weight:600}.bubble{padding:9px 13px;border-radius:15px;font-size:15px;line-height:1.45;white-space:pre-wrap;word-break:break-word;overflow-wrap:anywhere}.msg.guest .bubble{background:var(--guest-bubble);color:#fff;border-end-end-radius:4px}.msg.agent .bubble{background:var(--agent-bubble);color:var(--text);border-end-start-radius:4px}.msg.system .bubble{background:transparent;color:var(--muted);font-size:12.5px}.msg-time{font-size:10.5px;color:#94a3b8;margin:2px 4px 0}.typing{display:inline-flex;gap:4px;align-items:center}.typing span{width:6px;height:6px;border-radius:50%;background:#94a3b8;animation:blink 1.2s infinite both}.typing span:nth-child(2){animation-delay:.2s}.typing span:nth-child(3){animation-delay:.4s}@keyframes blink{0%,80%,to{opacity:.3}40%{opacity:1}}.banner{flex:0 0 auto;padding:8px 16px;font-size:12.5px;color:#92400e;background:#fef3c7;border-top:1px solid #fde68a;text-align:center}.composer{flex:0 0 auto;display:flex;gap:8px;padding:10px 12px;padding-bottom:calc(10px + env(safe-area-inset-bottom));border-top:1px solid var(--border);background:#fff}.composer input{flex:1;min-width:0}.composer button.primary{margin-top:0;min-height:46px;min-width:46px;padding:0 18px;flex-shrink:0}.bubble.has-media{background:#fff!important;border:1px solid var(--border);color:var(--text)!important;padding:5px;max-width:76vw}.msg.guest .bubble.has-media,.msg.agent .bubble.has-media{border-end-end-radius:15px;border-end-start-radius:15px}.media{display:flex;flex-direction:column;gap:4px}.media-img{display:block;max-width:240px;max-height:300px;width:100%;border-radius:11px;object-fit:cover}.media-video{display:block;max-width:260px;width:100%;border-radius:11px;background:#000}.media-audio-wrap{padding:2px}.media-audio{width:240px;max-width:62vw;height:40px}.media-caption{font-size:14px;line-height:1.4;padding:2px 6px 4px;white-space:pre-wrap;word-break:break-word}.media-doc{display:flex;align-items:center;gap:8px;padding:8px 10px;text-decoration:none;color:var(--text);min-width:160px;max-width:70vw}.doc-ic{font-size:22px}.doc-name{font-size:13.5px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.composer{align-items:center}.icon-btn{width:44px;height:44px;flex-shrink:0;border:none;border-radius:10px;background:#eef2f7;font-size:20px;line-height:1;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;touch-action:manipulation}.icon-btn:hover:not(:disabled){background:#e2e8f0}.icon-btn:disabled{opacity:.5}.icon-btn.danger{color:var(--danger);background:#fee2e2}.composer-input{flex:1;min-width:0}.recording-bar{display:flex;align-items:center;gap:10px}.rec-indicator{flex:1;display:flex;align-items:center;gap:8px;color:#334155;font-size:14px;font-weight:600}.rec-dot{width:11px;height:11px;border-radius:50%;background:var(--danger);animation:pulse 1s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.3}}.dept-menu{flex:0 0 auto;padding:14px 16px calc(16px + env(safe-area-inset-bottom));border-top:1px solid var(--border);background:#fff}.dept-prompt{font-size:14.5px;color:#334155;margin-bottom:12px;line-height:1.6;text-align:center}.dept-options{display:flex;flex-direction:column;gap:8px}.dept-btn{width:100%;padding:13px 16px;border:1px solid var(--border);border-radius:12px;background:#f8fafc;color:var(--text);font-size:15px;font-weight:600;cursor:pointer;text-align:center;transition:background .15s,border-color .15s;touch-action:manipulation}.dept-btn:hover{background:#eef2f7;border-color:var(--primary)}.dept-btn:active{background:#e2e8f0}.spinner{width:34px;height:34px;border:3px solid #e2e8f0;border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}