:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2)}.login-card{background:#fff;padding:2.5rem;border-radius:12px;box-shadow:0 10px 40px #0003;width:100%;max-width:400px}.login-card h2{margin:0 0 1.5rem;color:#333;text-align:center;font-size:1.5rem}.login-card input{width:100%;padding:14px 16px;border:2px solid #e0e0e0;border-radius:8px;font-size:16px;margin-bottom:1rem;transition:border-color .2s}.login-card input:focus{outline:none;border-color:#667eea}.login-card button{width:100%;padding:14px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}.login-card button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.login-card button:disabled{opacity:.7;cursor:not-allowed}.login-card .error{color:#e74c3c;text-align:center;margin-top:1rem;font-size:14px}.ticket-list{width:320px;background:#fff;border-right:1px solid #e0e0e0;display:flex;flex-direction:column;height:100%}.tabs{display:flex;border-bottom:1px solid #e0e0e0;flex-shrink:0}.tab{flex:1;padding:14px 8px;background:none;border:none;cursor:pointer;font-size:14px;color:#666;transition:all .2s;border-bottom:2px solid transparent}.tab:hover{background:#f5f5f5}.tab.active{color:#667eea;border-bottom-color:#667eea;font-weight:600}.tickets{flex:1;overflow-y:auto}.loading,.empty{padding:40px 20px;text-align:center;color:#888}.ticket-item{padding:14px 16px;border-bottom:1px solid #f0f0f0;cursor:pointer;transition:background .2s}.ticket-item:hover{background:#f9f9f9}.ticket-item.active{background:#f0f4ff;border-left:3px solid #667eea}.ticket-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}.ticket-item .name{font-weight:600;color:#333;font-size:14px}.ticket-item .time{font-size:12px;color:#999}.ticket-item .phone{font-size:12px;color:#666;margin-bottom:4px}.ticket-item .preview{font-size:13px;color:#888;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat{flex:1;display:flex;flex-direction:column;height:100%;background:#f8f9fa}.chat-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#888;gap:16px}.empty-icon{font-size:48px}.chat-header{background:#fff;padding:16px 20px;border-bottom:1px solid #e0e0e0;display:flex;justify-content:space-between;align-items:center;flex-shrink:0}.user-info h3{margin:0 0 4px;font-size:16px;color:#333}.user-details{display:flex;gap:16px}.user-details span{font-size:13px;color:#666}.actions{display:flex;gap:8px}.btn{padding:8px 16px;border:none;border-radius:6px;cursor:pointer;font-size:14px;font-weight:500;transition:all .2s}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-assign{background:#27ae60;color:#fff}.btn-assign:hover:not(:disabled){background:#219a52}.btn-close{background:#e74c3c;color:#fff}.btn-close:hover:not(:disabled){background:#c0392b}.messages{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:12px}.message{max-width:70%;padding:12px 16px;border-radius:16px;position:relative}.message.user{align-self:flex-start;background:#fff;border-bottom-left-radius:4px;box-shadow:0 1px 2px #0000001a}.message.agent{align-self:flex-end;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-bottom-right-radius:4px}.message.system{align-self:center;background:#e9ecef;color:#666;font-size:13px;padding:8px 16px}.message .sender{font-size:12px;font-weight:600;margin-bottom:4px;opacity:.8}.message .content{word-wrap:break-word;line-height:1.4}.message .time{font-size:11px;opacity:.7;margin-top:4px;text-align:right}.message .media{margin-top:8px}.message .media img,.message .media video{max-width:100%;max-height:300px;border-radius:8px}.message-input{background:#fff;padding:16px 20px;border-top:1px solid #e0e0e0;display:flex;gap:12px;flex-shrink:0}.message-input textarea{flex:1;padding:12px 16px;border:2px solid #e0e0e0;border-radius:12px;resize:none;font-family:inherit;font-size:14px;transition:border-color .2s}.message-input textarea:focus{outline:none;border-color:#667eea}.message-input textarea:disabled{background:#f5f5f5}.btn-send{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:12px 24px;align-self:flex-end}.btn-send:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 12px #667eea66}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background:#f5f5f5;color:#333}.loading-screen{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:#666}.spinner{width:40px;height:40px;border:3px solid #e0e0e0;border-top-color:#667eea;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.app{display:flex;flex-direction:column;height:100vh}.app-header{background:linear-gradient(135deg,#2c3e50,#1a252f);color:#fff;padding:16px 24px;display:flex;justify-content:space-between;align-items:center;flex-shrink:0}.app-header h1{font-size:1.25rem;font-weight:600}.logout-btn{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.3);padding:8px 16px;border-radius:6px;cursor:pointer;font-size:14px;transition:all .2s}.logout-btn:hover{background:#ffffff1a;border-color:#ffffff80}.app-main{flex:1;display:flex;overflow:hidden}@media(max-width:768px){.app-main{flex-direction:column}.ticket-list{width:100%;height:40%;border-right:none;border-bottom:1px solid #e0e0e0}.chat{height:60%}.message{max-width:85%}}