.login-container{display:flex;justify-content:center;align-items:center;min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);padding:24px}.login-card{background:#fff;border-radius:20px;box-shadow:0 20px 60px #00000040;padding:56px 48px;max-width:440px;width:100%;text-align:center;animation:fadeIn .4s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.login-header h1{color:#1a202c;font-size:32px;font-weight:700;margin:0 0 12px;letter-spacing:-.02em}.login-subtitle{color:#718096;font-size:15px;margin:0 0 36px;font-weight:500}.login-error{display:flex;align-items:center;gap:8px;background:#fed7d7;color:#c53030;padding:12px 16px;border-radius:8px;margin-bottom:24px;font-size:14px}.login-error svg{flex-shrink:0}.login-button{display:flex;align-items:center;justify-content:center;gap:12px;width:100%;padding:14px 24px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 12px #667eea66}.login-button:hover{transform:translateY(-2px);box-shadow:0 6px 16px #667eea80}.login-button:active{transform:translateY(0);box-shadow:0 2px 8px #667eea66}.login-button svg{flex-shrink:0}.login-footer{color:#a0aec0;font-size:12px;margin:24px 0 0}@media (max-width: 480px){.login-card{padding:32px 24px}.login-header h1{font-size:24px}}.message{display:flex;gap:var(--spacing-md);animation:fadeIn .3s ease-in}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message-avatar{flex-shrink:0;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--border-color);color:var(--text-secondary)}.message-user .message-avatar{background:var(--primary-color);color:#fff}.message-assistant .message-avatar{background:var(--secondary-color);color:#fff}.message-content{flex:1;min-width:0}.message-header{display:flex;align-items:center;gap:var(--spacing-sm);margin-bottom:var(--spacing-xs)}.message-role{font-size:.875rem;font-weight:600;color:var(--text-primary)}.message-time{font-size:.75rem;color:var(--text-secondary)}.message-image{margin-bottom:var(--spacing-sm);border-radius:var(--radius-md);overflow:hidden;border:1px solid rgba(255,255,255,.3);background:#ffffff1a}.message-image img{width:100%;max-width:400px;height:auto;display:block;border-radius:var(--radius-md)}.message-image-filename{padding:6px 12px;font-size:.75rem;color:#ffffffe6;background:#0003;text-align:center}.message-text{padding:var(--spacing-md);border-radius:var(--radius-lg);line-height:1.6;word-wrap:break-word;white-space:pre-wrap}.message-user .message-text{background:var(--user-message-bg);color:#fff;border-bottom-right-radius:var(--radius-sm)}.message-assistant .message-text{background:var(--assistant-message-bg);color:var(--text-primary);border-bottom-left-radius:var(--radius-sm)}.streaming-cursor{display:inline-block;width:8px;height:1em;background:currentColor;margin-left:2px;animation:blink 1s infinite}@keyframes blink{0%,50%{opacity:1}51%,to{opacity:0}}.message-resources{margin-top:12px}.message-resource{margin-top:8px;border-radius:8px;overflow:hidden;border:1px solid var(--border-color, #e5e7eb);background:var(--bg-secondary, #ffffff)}.resource-name{padding:8px 12px;background:var(--bg-tertiary, #f9fafb);border-bottom:1px solid var(--border-color, #e5e7eb);font-size:.875rem;font-weight:500;color:var(--text-secondary, #6b7280)}.resource-iframe{width:100%;border:none;display:block}@media (max-width: 768px){.message-avatar{width:32px;height:32px}.message-avatar svg{width:18px;height:18px}.message-text{padding:var(--spacing-sm) var(--spacing-md);font-size:.9375rem}}.message-list{display:flex;flex-direction:column;gap:var(--spacing-lg)}.message-input-container{border-top:1px solid var(--border-color);background:var(--surface);padding:var(--spacing-md) var(--spacing-lg)}.input-options{display:flex;align-items:center;margin-bottom:var(--spacing-sm)}.streaming-toggle{display:flex;align-items:center;gap:var(--spacing-sm);cursor:pointer;-webkit-user-select:none;user-select:none}.streaming-toggle input[type=checkbox]{width:18px;height:18px;cursor:pointer;accent-color:var(--primary-color)}.toggle-label{display:flex;align-items:center;gap:var(--spacing-xs);font-size:.875rem;color:var(--text-secondary)}.streaming-toggle:hover .toggle-label{color:var(--text-primary)}.input-wrapper{display:flex;gap:var(--spacing-sm);align-items:flex-end}.message-textarea{flex:1;min-height:44px;max-height:150px;padding:var(--spacing-md);border:2px solid var(--border-color);border-radius:var(--radius-lg);font-family:var(--font-body);font-size:1rem;line-height:1.5;resize:none;transition:border-color .2s;background:var(--background)}.message-textarea:focus{outline:none;border-color:var(--primary-color)}.message-textarea:disabled{background:var(--border-color);cursor:not-allowed;opacity:.6}.message-textarea::placeholder{color:var(--text-secondary)}.send-button{flex-shrink:0;width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:var(--primary-color);border:none;border-radius:var(--radius-lg);color:#fff;cursor:pointer;transition:all .2s}.send-button:hover:not(:disabled){background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-md)}.send-button:disabled{background:var(--border-color);cursor:not-allowed;opacity:.6}.loading-spinner{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spinner-circle{stroke-dasharray:50;stroke-dashoffset:25;animation:dash 1.5s ease-in-out infinite}@keyframes dash{0%{stroke-dashoffset:50}50%{stroke-dashoffset:0}to{stroke-dashoffset:-50}}.input-hint{margin-top:var(--spacing-sm);font-size:.75rem;color:var(--text-secondary);text-align:center}.input-hint kbd{padding:2px 6px;background:var(--background);border:1px solid var(--border-color);border-radius:var(--radius-sm);font-family:var(--font-mono);font-size:.75rem}.image-preview{margin-bottom:var(--spacing-md);border:2px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-sm);background:var(--background)}.image-preview img{max-width:200px;max-height:200px;border-radius:var(--radius-md);display:block;margin-bottom:var(--spacing-sm)}.image-info{display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-sm)}.image-filename{font-size:.875rem;color:var(--text-secondary);flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.remove-image-button{flex-shrink:0;width:24px;height:24px;display:flex;align-items:center;justify-content:center;background:var(--error-color, #ef4444);border:none;border-radius:var(--radius-md);color:#fff;cursor:pointer;font-size:1.25rem;line-height:1;transition:all .2s}.remove-image-button:hover:not(:disabled){background:var(--error-dark, #dc2626);transform:scale(1.1)}.remove-image-button:disabled{opacity:.5;cursor:not-allowed}.image-upload-button{flex-shrink:0;width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:var(--surface);border:2px solid var(--border-color);border-radius:var(--radius-lg);color:var(--text-secondary);cursor:pointer;transition:all .2s}.image-upload-button:hover:not(:disabled){background:var(--primary-color);border-color:var(--primary-color);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md)}.image-upload-button:disabled{background:var(--border-color);cursor:not-allowed;opacity:.6}@media (max-width: 768px){.message-input-container{padding:var(--spacing-sm) var(--spacing-md)}.message-textarea{font-size:16px}.input-hint{font-size:.6875rem}.image-preview img{max-width:150px;max-height:150px}}.chat-interface{display:flex;flex-direction:column;height:calc(100vh - 60px);width:100%;max-width:1200px;margin:0 auto}.chat-container{display:flex;flex-direction:column;height:100%;width:100%;background:var(--surface);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);overflow:hidden}.chat-header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-md) var(--spacing-lg);border-bottom:1px solid var(--border-color);background:var(--surface)}.chat-info{display:flex;align-items:center;gap:var(--spacing-md)}.message-count{font-size:.875rem;color:var(--text-secondary);font-weight:500}.clear-button{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);background:transparent;border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-secondary);font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s}.clear-button:hover:not(:disabled){background:var(--background);border-color:var(--text-secondary);color:var(--text-primary)}.clear-button:disabled{opacity:.5;cursor:not-allowed}.chat-messages{flex:1;overflow-y:auto;padding:var(--spacing-lg);background:var(--background)}.chat-messages::-webkit-scrollbar{width:8px}.chat-messages::-webkit-scrollbar-track{background:transparent}.chat-messages::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}.chat-messages::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;text-align:center;padding:var(--spacing-xl)}.empty-icon{font-size:4rem;margin-bottom:var(--spacing-md);opacity:.5}.empty-state h2{font-size:1.5rem;font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-sm)}.empty-state p{font-size:1rem;color:var(--text-secondary);max-width:500px;margin-bottom:var(--spacing-xl);line-height:1.6}.example-queries{display:flex;flex-direction:column;gap:var(--spacing-sm);width:100%;max-width:500px}.example-title{font-size:.875rem;font-weight:600;color:var(--text-secondary);margin-bottom:var(--spacing-xs)}.example-query{padding:var(--spacing-md);background:var(--surface);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-size:.875rem;text-align:left;cursor:pointer;transition:all .2s}.example-query:hover{background:var(--primary-color);border-color:var(--primary-color);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md)}.error-banner{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md) var(--spacing-lg);background:#fef2f2;border-top:1px solid #fecaca;color:var(--error-color);font-size:.875rem}@media (max-width: 768px){.chat-interface{height:calc(100vh - 100px)}.chat-header{padding:var(--spacing-sm) var(--spacing-md)}.chat-messages,.empty-state{padding:var(--spacing-md)}.empty-icon{font-size:3rem}.empty-state h2{font-size:1.25rem}}.app-header{background:#667eea;color:#fff;padding:12px 24px;box-shadow:0 2px 12px #0000001a;display:flex;justify-content:space-between;align-items:center;min-height:56px;position:sticky;top:0;z-index:100}.header-content h1{margin:0;font-size:22px;font-weight:600;letter-spacing:-.02em}.user-email{color:#fffffff2;font-size:14px;font-weight:500;padding:6px 12px;background:#ffffff26;border-radius:6px}.header-actions{display:flex;gap:12px;align-items:center}.logout-button{display:flex;align-items:center;gap:8px;padding:8px 16px;background:#ffffff1a;color:#fff;border:1px solid rgba(255,255,255,.3);border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease}.logout-button:hover{background:#fff3;border-color:#fff6;transform:translateY(-1px);box-shadow:0 4px 8px #00000026}.logout-button:active{transform:translateY(0);box-shadow:none}.logout-button svg{flex-shrink:0}@media (max-width: 768px){.app-header{padding:10px 16px;min-height:52px}.header-content h1{font-size:18px}.user-email{font-size:12px;padding:4px 8px}.logout-button{padding:6px 12px;font-size:13px}}.app{display:flex;flex-direction:column;min-height:100vh;max-width:100vw;overflow-x:hidden;background:var(--background)}.app-main{flex:1;display:flex;flex-direction:column;width:100%;overflow:hidden;height:calc(100vh - 64px)}.main-content{display:flex;gap:var(--spacing-lg);max-width:1600px;width:100%;margin:0 auto;height:100%;flex:1}@media (max-width: 768px){.app-main{padding:var(--spacing-md);height:calc(100vh - 56px)}.main-content{font-size:1.5rem}.app-main{padding:var(--spacing-md)}}:root{--primary-color: #2563eb;--primary-dark: #1e40af;--secondary-color: #10b981;--background: #f9fafb;--surface: #ffffff;--text-primary: #111827;--text-secondary: #6b7280;--border-color: #e5e7eb;--error-color: #ef4444;--user-message-bg: #2563eb;--assistant-message-bg: #f3f4f6;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1);--font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;--font-mono: "Courier New", Courier, monospace}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-body);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--background);color:var(--text-primary);line-height:1.6}code{font-family:var(--font-mono)}#root{min-height:100vh;display:flex;flex-direction:column}