.chat-page *{margin:0;padding:0;box-sizing:border-box}.chat-page{--primary-color:#3B82F6;--primary-dark:#2563EB;--primary-light:#60A5FA;--secondary-color:#8B5CF6;--accent-color:#A855F7;--success-color:#10B981;--warning-color:#F59E0B;--error-color:#EF4444;--bg-primary:#FFFFFF;--bg-secondary:#F8FAFC;--bg-tertiary:#F1F5F9;--text-primary:#1E293B;--text-secondary:#64748B;--text-muted:#94A3B8;--text-light:#FFFFFF;--border-color:#E2E8F0;--border-light:#F1F5F9;--shadow-light:0 1px 3px rgba(0,0,0,0.1);--shadow-medium:0 4px 6px rgba(0,0,0,0.1);--shadow-heavy:0 10px 25px rgba(0,0,0,0.1);--font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe 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linear infinite reverse}.chat-page .loading-text{font-size:var(--font-size-lg);font-weight:500;opacity:.9}@keyframes chatSpin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}@keyframes chatPulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}@keyframes chatFadeInWord{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.chat-page .chat-container{display:flex;height:100vh;height:100dvh;background:var(--bg-secondary);overflow:hidden}.chat-page .mobile-header{display:none;align-items:center;justify-content:space-between;padding:var(--spacing-4);background:var(--bg-primary);border-bottom:1px solid var(--border-color);box-shadow:var(--shadow-light);position:fixed;top:0;left:0;right:0;z-index:var(--z-sticky)}.chat-page .sidebar-toggle{background:none;border:none;font-size:var(--font-size-xl);color:var(--text-secondary);padding:var(--spacing-2);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}.chat-page 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var(--border-color);display:flex;flex-direction:column;transition:transform var(--transition-normal);z-index:var(--z-fixed)}.chat-page .sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-6);border-bottom:1px solid var(--border-color)}.chat-page .sidebar-title{display:flex;align-items:center;gap:var(--spacing-3);font-weight:600;color:var(--text-primary)}.chat-page .sidebar-logo{width:auto;height:2rem}.chat-page .close-sidebar{display:none;background:none;border:none;font-size:var(--font-size-lg);color:var(--text-secondary);padding:var(--spacing-2);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}.chat-page .close-sidebar:hover{background:var(--bg-tertiary);color:var(--text-primary)}.chat-page .sidebar-content{flex:1;display:flex;flex-direction:column;padding:var(--spacing-4);overflow:hidden}.chat-page 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.session-menu-btn{background:none;border:none;color:var(--text-secondary);padding:var(--spacing-2);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);font-size:var(--font-size-sm);opacity:0}.chat-page .session-item:hover .session-menu-btn{opacity:1}.chat-page .session-item.active .session-menu-btn{color:rgba(255,255,255,.8);opacity:1}.chat-page .session-item.active .session-menu-btn:hover{background:rgba(255,255,255,.1);color:var(--text-light)}.chat-page .session-menu-dropdown{position:absolute;top:100%;right:0;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-medium);min-width:120px;z-index:var(--z-dropdown);opacity:0;visibility:hidden;transform:translateY(-4px);transition:all var(--transition-fast)}.chat-page .session-menu-dropdown.show{opacity:1;visibility:visible;transform:translateY(0)}.chat-page .session-menu-item{display:flex;align-items:center;gap:var(--spacing-2);width:100%;padding:var(--spacing-2) var(--spacing-3);background:none;border:none;color:var(--text-primary);font-size:var(--font-size-sm);cursor:pointer;transition:background var(--transition-fast);text-align:left}.chat-page .session-menu-item:hover{background:var(--bg-tertiary)}.chat-page .session-menu-item:first-child{border-radius:var(--radius-md) var(--radius-md) 0 0}.chat-page .session-menu-item:last-child{border-radius:0 0 var(--radius-md) var(--radius-md)}.chat-page .session-menu-item i{font-size:var(--font-size-xs);width:12px}.chat-page .sidebar-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.5);z-index:var(--z-modal-backdrop);opacity:0;visibility:hidden;transition:all var(--transition-normal)}.chat-page .sidebar-overlay.show{opacity:1;visibility:visible}.chat-page .chat-area{flex:1;display:flex;flex-direction:column;background:var(--bg-primary);position:relative}.chat-page .chat-header{display:flex;align-items:center;justify-content:flex-start;padding:var(--spacing-6);background:var(--bg-primary);border-bottom:1px solid var(--border-color);box-shadow:var(--shadow-light)}.chat-page .chat-status{display:flex;align-items:center;gap:var(--spacing-2);font-size:var(--font-size-sm);color:var(--text-secondary)}.chat-page .status-indicator{width:8px;height:8px;border-radius:50%;background:var(--success-color);animation:chatPulse 2s infinite}.chat-page .status-indicator.typing{background:var(--warning-color)}.chat-page .status-indicator.error{background:var(--error-color)}.chat-page .chat-messages{flex:1;overflow-y:auto;padding:var(--spacing-6);scroll-behavior:smooth;background:var(--bg-secondary)}.chat-page .welcome-message{text-align:center;padding:var(--spacing-12) var(--spacing-6);max-width:600px;margin:0 auto}.chat-page .welcome-icon{width:80px;height:80px;display:flex;align-items:center;justify-content:center;margin:0 auto var(--spacing-6)}.chat-page .welcome-logo{width:auto;height:2rem;object-fit:contain}.chat-page .welcome-message h3{font-size:var(--font-size-2xl);font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-4)}.chat-page .message{display:flex;gap:var(--spacing-4);margin-bottom:var(--spacing-6);animation:chatMessageSlideIn .3s ease-out}@keyframes chatMessageSlideIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.chat-page .message.user{flex-direction:row-reverse}.chat-page .message-avatar{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:var(--font-size-lg);flex-shrink:0;overflow:hidden}.chat-page .message-avatar img{width:100%;height:100%;object-fit:cover;border-radius:50%}.chat-page .message.user .message-avatar{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:var(--text-light)}.chat-page .message.ai .message-avatar{background:var(--bg-tertiary);border:2px solid var(--border-color)}.chat-page .message-content{flex:1;max-width:70%}.chat-page .message.user .message-content{text-align:right}.chat-page .message-bubble{display:inline-block;padding:var(--spacing-4) var(--spacing-5);border-radius:var(--radius-xl);font-size:var(--font-size-base);line-height:1.6;word-wrap:break-word;position:relative}.chat-page .message.user .message-bubble{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:var(--text-light);border-bottom-right-radius:var(--radius-sm);box-shadow:var(--shadow-medium);transition:all var(--transition-fast)}.chat-page .message.user .message-bubble:hover{transform:translateY(-1px);box-shadow:var(--shadow-heavy)}.chat-page .message.ai .message-bubble{background:var(--bg-primary);color:var(--text-primary);border:1px solid var(--border-color);border-bottom-left-radius:var(--radius-sm);box-shadow:var(--shadow-light)}.chat-page .message-time{font-size:var(--font-size-xs);color:var(--text-muted);margin-top:var(--spacing-2)}.chat-page .message.user .message-time{text-align:right}.chat-page .typing-indicator{display:flex;gap:var(--spacing-4);margin-bottom:var(--spacing-6);animation:chatMessageSlideIn .3s ease-out}.chat-page .typing-dots{display:flex;gap:var(--spacing-1);padding:var(--spacing-4) var(--spacing-5);background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-xl);border-bottom-left-radius:var(--radius-sm);box-shadow:var(--shadow-light)}.chat-page .typing-dot{width:8px;height:8px;border-radius:50%;background:var(--text-muted);animation:chatTypingBounce 1.4s ease-in-out infinite}.chat-page .typing-dot:first-child{animation-delay:-.32s}.chat-page .typing-dot:nth-child(2){animation-delay:-.16s}@keyframes chatTypingBounce{0%,80%,to{transform:scale(.8);opacity:.5}40%{transform:scale(1);opacity:1}}.chat-page .input-area{background:var(--bg-primary);border-top:1px solid 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.send-btn{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:var(--text-light);border:none;padding:var(--spacing-3);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--transition-normal);font-size:var(--font-size-lg);display:flex;align-items:center;justify-content:center;min-width:44px;height:44px}.chat-page .send-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-medium)}.chat-page .send-btn:disabled{opacity:.5;cursor:not-allowed;transform:none;background:var(--bg-tertiary)!important;color:var(--text-muted)!important}.chat-page .modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:var(--z-modal);opacity:0;visibility:hidden;transition:all var(--transition-normal)}.chat-page .modal-overlay.show{opacity:1;visibility:visible}.chat-page .modal-content{background:var(--bg-primary);border-radius:var(--radius-2xl);padding:var(--spacing-8);max-width:400px;width:90%;box-shadow:var(--shadow-heavy);transform:scale(.9);transition:transform var(--transition-normal)}.chat-page .modal-overlay.show .modal-content{transform:scale(1)}.chat-page .modal-header{text-align:center;margin-bottom:var(--spacing-4)}.chat-page .modal-logo{width:auto;height:2rem;margin-bottom:var(--spacing-4)}.chat-page .modal-header h2{font-size:var(--font-size-xl);font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-2)}.chat-page .modal-body{display:flex;flex-direction:column;gap:var(--spacing-6)}.chat-page .input-group{display:flex;flex-direction:column;gap:var(--spacing-2)}.chat-page .input-group label{font-weight:500;color:var(--text-primary);font-size:var(--font-size-sm)}.chat-page .input-group input{padding:var(--spacing-3);border:1px solid 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.welcome-form-content{max-width:420px;width:90%;margin:var(--spacing-4) auto}.chat-page .welcome-form{display:flex;flex-direction:column;gap:var(--spacing-4)}.chat-page .form-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-3);align-items:end}.chat-page .form-row .input-group{min-width:0}.chat-page .input-hint{font-size:var(--font-size-xs);color:var(--text-muted);margin-top:var(--spacing-1)}.chat-page .form-loading{text-align:center;padding:var(--spacing-6);color:var(--text-secondary)}.chat-page .form-loading p{font-size:var(--font-size-sm)}.chat-page .input-group.error input{border-color:#fbbf24;background-color:#fefce8}.chat-page .input-group .error-message{font-size:var(--font-size-xs);color:#d97706;margin-top:var(--spacing-1);padding:var(--spacing-1) var(--spacing-2);background-color:#fef3c7;border-radius:var(--radius-sm)}.chat-page .input-group.success input{border-color:var(--success-color);background-color:#f0fdf4}.chat-page .info-message{font-size:var(--font-size-xs);color:var(--success-color);margin-top:var(--spacing-1);padding:var(--spacing-1) var(--spacing-2);background-color:#f0fdf4;border-radius:var(--radius-sm)}.chat-page .error-message-block{text-align:center;padding:var(--spacing-8);color:var(--error-color)}.chat-page .retry-button{background:var(--primary-color);color:var(--text-light);border:none;padding:var(--spacing-3) var(--spacing-6);border-radius:var(--radius-lg);cursor:pointer;margin-top:var(--spacing-4)}.chat-page ::-webkit-scrollbar{width:6px}.chat-page ::-webkit-scrollbar-track{background:var(--bg-secondary)}.chat-page ::-webkit-scrollbar-thumb{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));border-radius:3px}.chat-page .hidden{display:none!important}.chat-page .message-bubble h1,.chat-page .message-bubble h2,.chat-page .message-bubble h3{margin:var(--spacing-2) 0;font-weight:600}.chat-page .message-bubble p{margin:var(--spacing-2) 0}.chat-page .message-bubble ol,.chat-page .message-bubble ul{margin:var(--spacing-2) 0;padding-left:var(--spacing-5)}.chat-page .message-bubble li{margin:var(--spacing-1) 0}.chat-page .message-bubble code{background:var(--bg-tertiary);padding:var(--spacing-1) var(--spacing-2);border-radius:var(--radius-sm);font-family:Courier New,monospace;font-size:.9em}.chat-page .message-bubble pre{background:var(--bg-tertiary);padding:var(--spacing-3);border-radius:var(--radius-md);overflow-x:auto;margin:var(--spacing-2) 0}.chat-page .message-bubble a{color:var(--primary-color);text-decoration:underline}.chat-page .message-bubble strong{font-weight:600}.chat-page .message-bubble em{font-style:italic}@media (max-width:1024px){.chat-page .sidebar{position:fixed;top:0;left:0;height:100vh;width:300px;transform:translateX(-100%);z-index:var(--z-modal);transition:transform var(--transition-normal)}.chat-page .sidebar.show{transform:translateX(0)}.chat-page .mobile-header{display:flex}.chat-page .chat-area{margin-top:60px}.chat-page .close-sidebar{display:block}.chat-page .chat-header{display:none}.chat-page .session-menu-btn{opacity:1}.chat-page .input-area{position:fixed;bottom:0;left:0;right:0;z-index:var(--z-sticky)}.chat-page .chat-messages{margin-bottom:80px}}@media (min-width:1025px){.chat-page .chat-area{margin-top:0}}@media (max-width:768px){.chat-page .message-content{max-width:85%}.chat-page .modal-content{padding:var(--spacing-6);margin:var(--spacing-4)}.chat-page .form-row{grid-template-columns:1fr}.chat-page #user-input,.chat-page .input-group input{font-size:16px}}@media (max-width:480px){.chat-page .message{gap:var(--spacing-2)}.chat-page .message-avatar{width:32px;height:32px}.chat-page .message-bubble{padding:var(--spacing-3) var(--spacing-4);font-size:var(--font-size-sm)}.chat-page .welcome-form-content{margin:var(--spacing-1);padding:var(--spacing-3);width:calc(100% - .5rem)}}.chat-notification{position:fixed;top:20px;right:20px;background:#fef3c7;color:#d97706;padding:12px 16px;border-radius:8px;border:1px solid #fbbf24;box-shadow:0 4px 6px rgba(0,0,0,.1);z-index:10000;font-size:14px;max-width:300px;animation:chatSlideInRight .3s ease}@keyframes chatSlideInRight{0%{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}@keyframes chatSlideOutRight{0%{transform:translateX(0);opacity:1}to{transform:translateX(100%);opacity:0}}