:root{--primary-blue:#3b82f6;--primary-purple:#8b5cf6;--success-green:#10b981;--warning-yellow:#f59e0b;--error-red:#ef4444;--gray-50:#f9fafb;--gray-100:#f3f4f6;--gray-200:#e5e7eb;--gray-300:#d1d5db;--gray-400:#9ca3af;--gray-600:#4b5563;--gray-900:#111827;--spacing-xs:4px;--spacing-sm:8px;--spacing-md:16px;--spacing-lg:24px;--spacing-xl:32px;--spacing-2xl:48px;--spacing-3xl:64px;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--shadow-sm:0 1px 2px rgba(0,0,0,.05);--shadow-md:0 4px 6px rgba(0,0,0,.07);--shadow-lg:0 10px 15px rgba(0,0,0,.1);--shadow-xl:0 20px 25px rgba(0,0,0,.15);--transition-fast:150ms ease;--transition-base:200ms ease;--transition-slow:300ms ease}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:16px;line-height:1.5;color:var(--gray-900);background-color:var(--gray-50);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.top-right-corner{position:fixed;top:80px;right:20px;display:flex;gap:var(--spacing-md);align-items:center;z-index:1000}.auth-section{display:flex;gap:var(--spacing-md);align-items:center;width:100%;margin-top:5px}.btn-sign-in{padding:8px 20px;background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-sm);font-size:14px;font-weight:500;color:var(--gray-600);cursor:pointer;transition:all var(--transition-fast)}.btn-sign-in:hover{background:var(--gray-50);border-color:var(--gray-300)}.language-selector{display:flex;align-items:center;gap:6px;padding:8px 12px;background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);font-size:14px;color:var(--gray-600)}.language-selector:hover{background:var(--gray-50);border-color:var(--gray-300)}.user-menu{position:relative;display:flex;align-items:center;gap:8px;padding:6px 12px;background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast)}.user-menu:hover{background:var(--gray-50)}.user-avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--primary-blue),var(--primary-purple));display:flex;align-items:center;justify-content:center;color:#fff;font-size:12px;font-weight:600}.user-dropdown{position:absolute;top:calc(100% + 8px);right:0;background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);min-width:180px;display:none;z-index:1001}.user-menu:hover .user-dropdown{display:block}.user-dropdown a{display:block;padding:10px 16px;color:var(--gray-900);text-decoration:none;transition:background var(--transition-fast)}.user-dropdown a:hover{background:var(--gray-50)}.user-dropdown hr{border:0;border-top:1px solid var(--gray-200);margin:4px 0}.landing-page{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-lg);margin-top:100px}.hero-section{width:100%;max-width:1200px;text-align:center}.hero-content{max-width:800px;margin:0 auto}.hero-title{font-size:48px;font-weight:700;margin-bottom:var(--spacing-md);background:linear-gradient(135deg,var(--primary-blue),var(--primary-purple));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{font-size:24px;color:var(--gray-600);margin-bottom:var(--spacing-md)}.hero-description{font-size:18px;color:var(--gray-600);margin-bottom:var(--spacing-1xl)}.upload-zone{border:2px dashed var(--gray-300);border-radius:var(--radius-xl);padding:var(--spacing-2xl);margin-bottom:var(--spacing-xl);cursor:pointer;transition:all var(--transition-base);background:#fff}.upload-zone:hover,.upload-zone.drag-over{border-color:var(--primary-blue);background:rgba(59,130,246,.02)}.upload-content{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-md)}.upload-icon{color:var(--gray-400)}.upload-content h3{font-size:20px;font-weight:600;color:var(--gray-900)}.upload-content p{color:var(--gray-600)}.upload-hint{font-size:14px!important;color:var(--gray-400)!important}.format-options{margin-top:var(--spacing-2xl)}.format-label{color:var(--gray-600);margin-bottom:var(--spacing-md)}.format-cards{display:flex;gap:var(--spacing-md);justify-content:center}.format-card{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-md);padding:var(--spacing-lg);width:120px;cursor:pointer;transition:all var(--transition-base)}.format-card:hover{border-color:var(--primary-blue);box-shadow:var(--shadow-md);transform:translateY(-2px)}.format-icon{font-size:40px;margin-bottom:var(--spacing-sm)}.format-name{font-weight:500;color:var(--gray-900)}.features-section{display:flex;gap:var(--spacing-xl);justify-content:center;margin-top:var(--spacing-3xl);flex-wrap:wrap}.feature-card{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-lg);padding:var(--spacing-xl);width:280px;text-align:center}.feature-icon{font-size:48px;margin-bottom:var(--spacing-md)}.feature-card h3{font-size:20px;font-weight:600;margin-bottom:var(--spacing-sm);color:var(--gray-900)}.feature-card p{color:var(--gray-600)}.upload-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:var(--spacing-lg)}.upload-container{width:100%;max-width:600px}.upload-state h2{text-align:center;font-size:32px;font-weight:600;margin-bottom:var(--spacing-xl);color:var(--gray-900)}.upload-zone-large{background:#fff;border:2px dashed var(--gray-300);border-radius:var(--radius-xl);padding:var(--spacing-3xl);text-align:center;cursor:pointer;transition:all var(--transition-base);margin-bottom:var(--spacing-xl)}.upload-zone-large:hover,.upload-zone-large.drag-over{border-color:var(--primary-blue);background:rgba(59,130,246,.02)}.upload-icon-large{color:var(--gray-400);margin-bottom:var(--spacing-lg)}.upload-zone-large h3{font-size:20px;font-weight:600;margin-bottom:var(--spacing-sm);color:var(--gray-900)}.upload-zone-large p{color:var(--gray-600);margin-bottom:var(--spacing-md)}.back-link{display:inline-block;color:var(--gray-600);text-decoration:none;font-size:14px;margin-top:var(--spacing-lg)}.back-link:hover{color:var(--primary-blue)}.file-preview{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-md);padding:var(--spacing-lg);margin-bottom:var(--spacing-xl)}.file-info{display:flex;align-items:center;gap:var(--spacing-md)}.file-icon{font-size:48px;flex-shrink:0}.file-details{flex:1}.file-name{font-size:18px;font-weight:500;color:var(--gray-900);margin-bottom:4px}.file-size{font-size:14px;color:var(--gray-600)}.btn-remove{background:none;border:0;color:var(--gray-400);cursor:pointer;padding:8px;border-radius:var(--radius-sm);transition:all var(--transition-fast)}.btn-remove:hover{background:var(--gray-100);color:var(--error-red)}.processing-container{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-lg);padding:var(--spacing-2xl);text-align:center}.processing-icon{margin-bottom:var(--spacing-lg)}.spinner{animation:spin 1s linear infinite;color:var(--primary-blue)}@keyframes spin{to{transform:rotate(360deg)}}.processing-container h3{font-size:20px;font-weight:600;margin-bottom:var(--spacing-xl);color:var(--gray-900)}.progress-bar{width:100%;height:8px;background:var(--gray-200);border-radius:999px;overflow:hidden;margin-bottom:var(--spacing-sm)}.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary-blue),var(--primary-purple));transition:width var(--transition-slow)}.progress-text{font-size:14px;font-weight:600;color:var(--primary-blue);margin-bottom:var(--spacing-xl)}.processing-steps{display:flex;flex-direction:column;gap:var(--spacing-md);margin-bottom:var(--spacing-lg)}.step{display:flex;align-items:center;gap:var(--spacing-md);text-align:left}.step-icon{font-size:20px;width:24px;text-align:center}.step-text{color:var(--gray-600)}.processing-hint{font-size:14px;color:var(--gray-400)}@media(max-width:768px){.hero-title{font-size:36px}.format-cards{flex-wrap:wrap}.features-section{flex-direction:column;align-items:center}}.processing-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.85);display:flex;align-items:center;justify-content:center;z-index:10000;animation:fadeIn .3s ease}.processing-card{background:#fff;border-radius:16px;padding:48px;max-width:500px;width:90%;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.3);animation:slideUp .4s ease}.processing-card h2{margin:20px 0 10px;font-size:24px;font-weight:600;color:#1a1a1a}.processing-filename{font-size:14px;color:#666;margin-bottom:30px;font-weight:400}.processing-icon{display:flex;justify-content:center;margin-bottom:20px}.spinner-large{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0deg)}100%{transform:rotate(360deg)}}@keyframes fadeIn{from{opacity:0}to{opacity:1}}@keyframes slideUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.progress-container{margin:30px 0}.progress-bar{width:100%;height:10px;background:#e8e8e8;border-radius:5px;overflow:hidden;margin-bottom:10px}.progress-fill{height:100%;background:linear-gradient(90deg,#667eea 0%,#764ba2 100%);transition:width .5s ease;border-radius:5px}.progress-text{font-size:14px;font-weight:600;color:#667eea}.processing-steps{margin:30px 0;text-align:left}.step{display:flex;align-items:center;padding:12px 0;color:#999;transition:all .3s ease}.step.active{color:#667eea}.step.complete{color:#10b981}.step-icon{font-size:18px;width:32px;text-align:center;margin-right:12px}.step-text{font-size:14px;flex:1}.processing-hint{margin-top:20px;color:#999;font-size:13px}.spinner{animation:spin 1s linear infinite}.processing-container{max-width:400px;margin:0 auto}.processing-container h3{margin:20px 0;font-size:18px;color:#333}.format-selection-title{font-size:28px;font-weight:600;text-align:center;margin-bottom:var(--spacing-xl);color:var(--gray-900)}.format-cards-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--spacing-xl);max-width:1000px;margin:0 auto}.format-card-large{background:#fff;border:2px solid var(--gray-200);border-radius:var(--radius-xl);padding:var(--spacing-xl);text-align:center;cursor:pointer;transition:all var(--transition-base);text-decoration:none;display:flex;flex-direction:column;align-items:center;position:relative;overflow:hidden}.format-card-large::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary-blue),var(--primary-purple));transform:scaleX(0);transition:transform var(--transition-base)}.format-card-large:hover{border-color:var(--primary-blue);box-shadow:var(--shadow-xl);transform:translateY(-4px)}.format-card-large:hover::before{transform:scaleX(1)}.format-card-icon{font-size:64px;margin-bottom:var(--spacing-md);filter:grayscale(30%);transition:all var(--transition-base)}.format-card-large:hover .format-card-icon{filter:grayscale(0%);transform:scale(1.1)}.format-card-title{font-size:22px;font-weight:600;color:var(--gray-900);margin-bottom:var(--spacing-sm)}.format-card-description{font-size:15px;color:var(--gray-600);line-height:1.6;margin-bottom:var(--spacing-md)}.format-card-arrow{font-size:24px;color:var(--primary-blue);opacity:0;transform:translateX(-10px);transition:all var(--transition-base)}.format-card-large:hover .format-card-arrow{opacity:1;transform:translateX(0)}.quick-start-section{text-align:center;margin-top:var(--spacing-2xl)}.quick-start-text{font-size:16px;color:var(--gray-600);margin-bottom:var(--spacing-md)}.how-it-works-section{margin-top:var(--spacing-3xl);padding:var(--spacing-3xl) var(--spacing-lg);background:#fff;border-radius:var(--radius-xl);max-width:1000px;margin-left:auto;margin-right:auto}.section-title{font-size:32px;font-weight:600;text-align:center;margin-bottom:var(--spacing-2xl);color:var(--gray-900)}.steps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--spacing-xl)}.step-card{text-align:center;padding:var(--spacing-lg)}.step-number{width:60px;height:60px;border-radius:50%;background:linear-gradient(135deg,var(--primary-blue),var(--primary-purple));color:#fff;font-size:28px;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto var(--spacing-md)}.step-card h3{font-size:20px;font-weight:600;margin-bottom:var(--spacing-sm);color:var(--gray-900)}.step-card p{font-size:15px;color:var(--gray-600);line-height:1.6}@media(max-width:768px){.landing-page{padding:var(--spacing-md);margin-top:20px}.hero-title{font-size:32px}.hero-subtitle{font-size:20px}.hero-description{font-size:16px}.format-selection-title{font-size:24px}.format-cards-grid{grid-template-columns:1fr;gap:var(--spacing-lg)}.format-card-large{padding:var(--spacing-lg)}.format-card-icon{font-size:48px}.format-card-title{font-size:20px}.format-card-description{font-size:14px}.features-section{grid-template-columns:1fr}.how-it-works-section{padding:var(--spacing-xl) var(--spacing-md)}.section-title{font-size:26px}.steps-grid{grid-template-columns:1fr;gap:var(--spacing-lg)}}@media(max-width:480px){.hero-title{font-size:28px}.format-card-icon{font-size:40px}.btn-primary.btn-large{width:100%;padding:14px 24px}}.format-page{min-height:100vh;padding:var(--spacing-lg);margin-top:80px}.format-hero{max-width:800px;margin:0 auto var(--spacing-3xl);text-align:center}.format-hero-content{position:relative}.format-back-link{text-align:left;margin-bottom:var(--spacing-xl)}.format-back-link a{color:var(--gray-600);text-decoration:none;font-size:14px;transition:color var(--transition-fast)}.format-back-link a:hover{color:var(--primary-blue)}.format-icon-large{font-size:80px;margin-bottom:var(--spacing-md);filter:grayscale(20%)}.format-title{font-size:42px;font-weight:700;margin-bottom:var(--spacing-md);background:linear-gradient(135deg,var(--primary-blue),var(--primary-purple));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.format-subtitle{font-size:22px;color:var(--gray-600);margin-bottom:var(--spacing-md);font-weight:500}.format-description{font-size:17px;color:var(--gray-600);line-height:1.6;margin-bottom:var(--spacing-2xl)}.format-benefits{max-width:1000px;margin:0 auto var(--spacing-3xl)}.benefits-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:var(--spacing-lg);margin-top:var(--spacing-xl)}.benefit-card{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-lg);padding:var(--spacing-lg);text-align:center;transition:all var(--transition-base)}.benefit-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.benefit-icon{font-size:48px;margin-bottom:var(--spacing-md)}.benefit-card h3{font-size:18px;font-weight:600;margin-bottom:var(--spacing-sm);color:var(--gray-900)}.benefit-card p{font-size:14px;color:var(--gray-600);line-height:1.5}.format-use-cases{max-width:800px;margin:0 auto;padding:var(--spacing-2xl);background:#fff;border-radius:var(--radius-xl);border:1px solid var(--gray-200)}.use-cases-list{display:flex;flex-direction:column;gap:var(--spacing-md);margin-top:var(--spacing-xl)}.use-case-item{display:flex;align-items:flex-start;gap:var(--spacing-md);padding:var(--spacing-md);border-radius:var(--radius-md);transition:background var(--transition-fast)}.use-case-item:hover{background:var(--gray-50)}.use-case-icon{flex-shrink:0;width:24px;height:24px;border-radius:50%;background:var(--success-green);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}.use-case-text{font-size:15px;color:var(--gray-700);line-height:1.6}.use-case-text strong{color:var(--gray-900);font-weight:600}@media(max-width:768px){.format-page{padding:var(--spacing-md);margin-top:5px}.format-icon-large{font-size:60px}.format-title{font-size:32px}.format-subtitle{font-size:18px}.format-description{font-size:15px}.benefits-grid{grid-template-columns:1fr}.format-use-cases{padding:var(--spacing-lg)}.upload-zone{padding:var(--spacing-xl)}.powered-by-text{font-size:12px}.policy-text{font-size:11px}.disclaimer-section{padding:var(--spacing-sm)}.disclaimer-text{font-size:13px}}@media(max-width:480px){.format-title{font-size:28px}.format-icon-large{font-size:50px}.benefit-card{padding:var(--spacing-md)}.benefit-icon{font-size:40px}}.powered-by-section{text-align:center;margin-bottom:var(--spacing-md);padding:var(--spacing-sm) 0}.powered-by-text{font-size:13px;color:var(--gray-500);line-height:1.6}.powered-by-text a{color:var(--primary-blue);text-decoration:none;font-weight:500;transition:color var(--transition-fast)}.powered-by-text a:hover{color:var(--primary-purple);text-decoration:underline}.file-upload-policy{margin-top:var(--spacing-lg);padding-top:var(--spacing-md);border-top:1px solid var(--gray-200)}.policy-text{font-size:12px;color:var(--gray-500);line-height:1.5}.policy-text a{color:var(--gray-600);text-decoration:underline;transition:color var(--transition-fast)}.policy-text a:hover{color:var(--primary-blue)}.disclaimer-section{background:linear-gradient(135deg,#fff4e6 0%,#ffe8cc 100%);border:1px solid #ffd699;border-radius:var(--radius-lg);padding:var(--spacing-md);margin-top:var(--spacing-xl);display:flex;align-items:flex-start;gap:var(--spacing-sm)}.disclaimer-icon{font-size:20px;flex-shrink:0;margin-top:2px}.disclaimer-text{font-size:14px;color:#856404;line-height:1.6;margin:0}.disclaimer-text strong{font-weight:600;color:#533f03}.disclaimer-section.blue{background:linear-gradient(135deg,#e3f2fd 0%,#bbdefb 100%);border:1px solid #90caf9}.disclaimer-section.blue .disclaimer-text{color:#0d47a1}.disclaimer-section.blue .disclaimer-text strong{color:#01579b}.btn-primary{background:linear-gradient(135deg,var(--primary-blue),var(--primary-purple));color:#fff;border:0;border-radius:var(--radius-sm);padding:12px 24px;font-size:16px;font-weight:500;cursor:pointer;transition:all var(--transition-base);box-shadow:var(--shadow-sm)}.btn-primary:hover{box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-primary:active{transform:translateY(0)}.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-large{padding:16px 32px;font-size:18px}.btn-secondary{background:#fff;color:var(--gray-900);border:1px solid var(--gray-300);border-radius:var(--radius-sm);padding:12px 24px;font-size:16px;font-weight:500;cursor:pointer;transition:all var(--transition-base)}.btn-secondary:hover{background:var(--gray-50);border-color:var(--gray-400)}.btn-icon{background:none;border:0;color:var(--gray-600);cursor:pointer;padding:8px;border-radius:var(--radius-sm);transition:all var(--transition-fast);display:flex;align-items:center;justify-content:center}.btn-icon:hover{background:var(--gray-100);color:var(--gray-900)}.btn-retry{background:var(--primary-blue);color:#fff;border:0;border-radius:var(--radius-sm);padding:8px 16px;font-size:14px;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.btn-retry:hover{background:#2563eb}.btn-upload-sidebar{width:100%;background:var(--primary-blue);color:#fff;border:0;border-radius:var(--radius-sm);padding:12px;font-size:14px;font-weight:500;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:all var(--transition-fast);margin-top:auto}.btn-upload-sidebar:hover{background:#2563eb}.btn-send{background:var(--primary-blue);color:#fff;border:0;border-radius:var(--radius-sm);width:40px;height:40px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast);flex-shrink:0}.btn-send:hover:not(:disabled){background:#2563eb}.btn-send:disabled{opacity:.5;cursor:not-allowed}.chat-sidebar{width:280px;background:#fff;border-right:1px solid var(--gray-200);display:flex;flex-direction:column;overflow-y:auto}.sidebar-header{padding:var(--spacing-lg);border-bottom:1px solid var(--gray-200)}.sidebar-header h2{font-size:20px;font-weight:600;color:var(--gray-900)}.sidebar-divider{height:1px;background:var(--gray-200);margin:var(--spacing-md) 0}.sidebar-section{padding:0 var(--spacing-lg);flex:1;overflow-y:auto}.section-title{font-size:12px;font-weight:600;color:var(--gray-400);text-transform:uppercase;letter-spacing:.5px;margin-bottom:var(--spacing-md)}.section-loading,.section-error{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-xl) 0;gap:var(--spacing-md)}.section-loading p,.section-error p{font-size:14px;color:var(--gray-600);text-align:center}.spinner-small{width:24px;height:24px;border:3px solid var(--gray-200);border-top-color:var(--primary-blue);border-radius:50%;animation:spin 1s linear infinite}.documents-list{display:flex;flex-direction:column;gap:var(--spacing-sm)}.document-item{background:var(--gray-50);border:1px solid var(--gray-200);border-radius:var(--radius-md);padding:var(--spacing-md);cursor:pointer;transition:all var(--transition-fast);position:relative}.document-item:hover{background:#fff;box-shadow:var(--shadow-sm)}.document-item.active{background:#fff;border-color:var(--primary-blue);box-shadow:var(--shadow-sm)}.document-item.active::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary-blue);border-radius:var(--radius-md) 0 0 var(--radius-md)}.document-header{display:flex;align-items:center;gap:var(--spacing-sm);margin-bottom:4px}.document-icon{font-size:18px}.document-name{font-size:14px;font-weight:500;color:var(--gray-900);flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.document-meta{display:flex;gap:var(--spacing-sm);font-size:12px;color:var(--gray-600)}.document-date{flex:1}.document-messages{white-space:nowrap}.chat-main{flex:1;display:flex;flex-direction:column;background:var(--gray-50)}.chat-header{background:#fff;border-bottom:1px solid var(--gray-200);padding:var(--spacing-lg);display:flex;justify-content:space-between;align-items:center}.chat-header-left{display:flex;align-items:center;gap:var(--spacing-md)}.chat-header-left h3{font-size:18px;font-weight:600;color:var(--gray-900)}.status-badge{padding:4px 12px;background:var(--gray-100);color:var(--gray-600);border-radius:999px;font-size:12px;font-weight:500}.status-badge.ready{background:rgba(16,185,129,.1);color:var(--success-green)}.status-badge.processing{background:rgba(245,158,11,.1);color:var(--warning-yellow)}.chat-header-right{display:flex;gap:var(--spacing-sm)}.messages-container{flex:1;overflow-y:auto;padding:var(--spacing-lg);position:relative}.chat-loading,.chat-error,.chat-empty{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center}.chat-loading{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-md)}.spinner{width:48px;height:48px;border:4px solid var(--gray-200);border-top-color:var(--primary-blue);border-radius:50%;animation:spin 1s linear infinite}.chat-error p,.chat-loading p{color:var(--gray-600);margin-bottom:var(--spacing-md)}.chat-empty{max-width:400px}.empty-icon{font-size:64px;margin-bottom:var(--spacing-lg)}.chat-empty h3{font-size:24px;font-weight:600;color:var(--gray-900);margin-bottom:var(--spacing-sm)}.chat-empty p{color:var(--gray-600)}.messages-list{display:flex;flex-direction:column;gap:var(--spacing-lg);max-width:900px;margin:0 auto}.message{display:flex;gap:var(--spacing-md);animation:messageSlideIn .3s ease-out}@keyframes messageSlideIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message.user{flex-direction:row-reverse}.message-avatar{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:18px}.message.user .message-avatar{background:linear-gradient(135deg,var(--primary-blue),var(--primary-purple));color:#fff}.message.assistant .message-avatar{background:var(--gray-200)}.message-content{flex:1;max-width:70%}.message.user .message-content{display:flex;flex-direction:column;align-items:flex-end}.message-header{display:flex;align-items:center;gap:var(--spacing-sm);margin-bottom:4px}.message.user .message-header{flex-direction:row-reverse}.message-role{font-size:14px;font-weight:500;color:var(--gray-900)}.message-time{font-size:12px;color:var(--gray-400)}.message-bubble{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-lg);padding:var(--spacing-md);box-shadow:var(--shadow-sm)}.message.user .message-bubble{background:var(--primary-blue);color:#fff;border-color:var(--primary-blue)}.message-text{line-height:1.6;word-wrap:break-word}.message-sources{margin-top:var(--spacing-md);padding-top:var(--spacing-md);border-top:1px solid var(--gray-200);font-size:14px;color:var(--gray-600);display:flex;align-items:center;gap:6px}.message-thinking{display:flex;align-items:center;gap:var(--spacing-sm);color:var(--gray-600);font-style:italic}.thinking-dots{display:flex;gap:4px}.thinking-dot{width:6px;height:6px;background:var(--gray-400);border-radius:50%;animation:thinkingPulse 1.4s ease-in-out infinite}.thinking-dot:nth-child(2){animation-delay:.2s}.thinking-dot:nth-child(3){animation-delay:.4s}@keyframes thinkingPulse{0%,80%,100%{opacity:.3;transform:scale(1)}40%{opacity:1;transform:scale(1.2)}}.chat-input-container{background:#fff;border-top:1px solid var(--gray-200);padding:var(--spacing-lg)}.chat-input-wrapper{max-width:900px;margin:0 auto;display:flex;gap:var(--spacing-md);align-items:flex-end}.chat-input{flex:1;border:1px solid var(--gray-300);border-radius:var(--radius-md);padding:12px 16px;font-size:16px;font-family:inherit;resize:none;max-height:150px;transition:all var(--transition-fast)}.chat-input:focus{outline:0;border-color:var(--primary-blue);box-shadow:0 0 0 3px rgba(59,130,246,.1)}.dashboard-page{min-height:100vh;padding:var(--spacing-2xl) var(--spacing-lg)}.dashboard-container{max-width:1400px;margin:0 auto}.dashboard-header{margin-bottom:var(--spacing-2xl)}.welcome-text{font-size:32px;font-weight:600;color:var(--gray-900);margin-bottom:var(--spacing-sm)}.stats-summary{font-size:16px;color:var(--gray-600);margin-bottom:var(--spacing-xl)}.stats-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--spacing-lg);margin-bottom:var(--spacing-xl)}.stat-card{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-lg);padding:var(--spacing-lg);text-align:center}.stat-icon{font-size:32px;margin-bottom:var(--spacing-sm)}.stat-value{font-size:28px;font-weight:700;color:var(--gray-900);margin-bottom:4px}.stat-label{font-size:14px;color:var(--gray-600)}.quick-actions{margin-bottom:var(--spacing-2xl)}.quick-actions h3{font-size:18px;font-weight:600;margin-bottom:var(--spacing-md);color:var(--gray-900)}.action-buttons{display:flex;gap:var(--spacing-md);flex-wrap:wrap}.documents-section{margin-bottom:var(--spacing-2xl)}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-lg)}.section-header h3{font-size:20px;font-weight:600;color:var(--gray-900)}.section-controls{display:flex;gap:var(--spacing-md);align-items:center}.view-toggle{display:flex;gap:4px;background:var(--gray-100);border-radius:var(--radius-sm);padding:4px}.view-toggle button{background:none;border:0;padding:6px 12px;border-radius:var(--radius-sm);cursor:pointer;color:var(--gray-600);transition:all var(--transition-fast)}.view-toggle button.active{background:#fff;color:var(--gray-900);box-shadow:var(--shadow-sm)}.search-box{border:1px solid var(--gray-300);border-radius:var(--radius-sm);padding:8px 12px;font-size:14px;width:200px}.search-box:focus{outline:0;border-color:var(--primary-blue)}.documents-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--spacing-lg)}.document-card{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-lg);padding:var(--spacing-lg);transition:all var(--transition-base);cursor:pointer}.document-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.document-card-icon{font-size:48px;margin-bottom:var(--spacing-md)}.document-card-title{font-size:16px;font-weight:600;color:var(--gray-900);margin-bottom:var(--spacing-sm);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.document-card-meta{font-size:14px;color:var(--gray-600);margin-bottom:var(--spacing-md)}.document-card-meta div{margin-bottom:4px}.document-card-actions{display:flex;gap:var(--spacing-sm)}.document-card-skeleton{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-lg);padding:var(--spacing-lg)}.skeleton-icon{width:48px;height:48px;background:var(--gray-200);border-radius:var(--radius-sm);margin-bottom:var(--spacing-md);animation:skeleton-pulse 1.5s ease-in-out infinite}.skeleton-title{height:20px;background:var(--gray-200);border-radius:var(--radius-sm);margin-bottom:var(--spacing-sm);animation:skeleton-pulse 1.5s ease-in-out infinite}.skeleton-meta{height:14px;background:var(--gray-200);border-radius:var(--radius-sm);width:60%;animation:skeleton-pulse 1.5s ease-in-out infinite}@keyframes skeleton-pulse{0%,100%{opacity:1}50%{opacity:.4}}.toast-container{position:fixed;top:80px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:var(--spacing-md)}.toast{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-md);padding:var(--spacing-md) var(--spacing-lg);box-shadow:var(--shadow-lg);min-width:300px;display:flex;align-items:center;gap:var(--spacing-md);animation:toastSlideIn .3s ease-out}@keyframes toastSlideIn{from{opacity:0;transform:translateX(100%)}to{opacity:1;transform:translateX(0)}}.toast.success{border-left:4px solid var(--success-green)}.toast.error{border-left:4px solid var(--error-red)}.toast.warning{border-left:4px solid var(--warning-yellow)}.toast.info{border-left:4px solid var(--primary-blue)}.toast-icon{font-size:20px;flex-shrink:0}.toast-message{flex:1;color:var(--gray-900)}.toast-close{background:none;border:0;color:var(--gray-400);cursor:pointer;padding:4px;display:flex;align-items:center;justify-content:center}.toast-close:hover{color:var(--gray-600)}@media(max-width:768px){.chat-layout{flex-direction:column}.chat-sidebar{width:100%;border-right:0;border-bottom:1px solid var(--gray-200)}.message-content{max-width:85%}.documents-grid{grid-template-columns:1fr}.top-right-corner{position:static;width:100%}.btn-sign-in{padding:6px 12px;font-size:12px}.language-selector{padding:6px 8px;font-size:12px}}@media(max-width:480px){.chat-input-wrapper{gap:var(--spacing-sm)}.format-cards{flex-direction:column}.format-card{width:100%}}.message-text h1,.message-text h2,.message-text h3,.message-text h4{margin-top:1em;margin-bottom:.5em;font-weight:600;color:var(--gray-900)}.message-text h1{font-size:1.5em}.message-text h2{font-size:1.3em}.message-text h3{font-size:1.1em}.message-text h4{font-size:1em}.message-text ul,.message-text ol{margin:.5em 0;padding-left:1.5em}.message-text li{margin:.3em 0}.message-text p{margin:.5em 0}.message-text strong{font-weight:600;color:var(--gray-900)}.message-text em{font-style:italic}.message-text code{background:var(--gray-100);padding:.2em .4em;border-radius:3px;font-family:'Courier New',monospace;font-size:.9em}.message-text pre{background:var(--gray-100);padding:1em;border-radius:6px;overflow-x:auto;margin:.5em 0}.message-text pre code{background:none;padding:0}.message-text blockquote{border-left:3px solid var(--primary-color);padding-left:1em;margin:.5em 0;color:var(--gray-600)}.message-text a{color:var(--primary-color);text-decoration:underline}body{margin:0;padding:0}.chat-overlay{position:fixed!important;top:0!important;left:0!important;right:0!important;bottom:0!important;width:100vw!important;height:100vh!important;margin:0!important;padding:0!important;background:rgba(0,0,0,.5)!important;z-index:1000!important;display:none;opacity:0;transition:opacity .3s ease;pointer-events:none}.chat-overlay.active{display:block!important;opacity:1!important;pointer-events:auto!important}.chat-page{position:fixed;top:0;left:0;right:0;bottom:0;overflow:hidden;background:var(--gray-50);transform:none!important;clip-path:none!important}.chat-layout{display:flex;height:100vh;width:100%;position:relative;transform:none!important;isolation:auto!important}.chat-sidebar{width:280px;background:#fff;border-right:1px solid var(--gray-200);display:flex;flex-direction:column;flex-shrink:0;overflow-y:auto;z-index:100;position:relative}.chat-main{flex:1;display:flex;flex-direction:column;min-width:0;height:100vh;overflow:hidden;z-index:10}.chat-header{flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-md);border-bottom:1px solid var(--gray-200);background:#fff;z-index:50}.chat-header-left{display:flex;align-items:center;gap:var(--spacing-sm);flex:1;min-width:0}.chat-header-right{display:flex;gap:var(--spacing-sm);flex-shrink:0}.messages-container{flex:1;overflow-y:auto;overflow-x:hidden;padding:var(--spacing-lg);background:var(--gray-50)}.messages-list{display:flex;flex-direction:column;gap:var(--spacing-xl);padding-bottom:var(--spacing-lg)}.message{display:flex;margin-bottom:var(--spacing-lg)}.message-user{justify-content:flex-end}.message-assistant{justify-content:flex-start}.message-content{max-width:70%;padding:var(--spacing-md);border-radius:var(--radius-lg);line-height:1.6;word-wrap:break-word}.message-user .message-content{background:var(--primary-blue);color:#fff;border-bottom-right-radius:4px}.message-assistant .message-content{background:#fff;color:var(--gray-900);border:1px solid var(--gray-200);border-bottom-left-radius:4px}.chat-input-container{flex-shrink:0;background:#fff;border-top:1px solid var(--gray-200);padding:var(--spacing-md);z-index:50;padding-bottom:calc(var(--spacing-md) + env(safe-area-inset-bottom))}.chat-input-wrapper{display:flex;gap:var(--spacing-sm);align-items:flex-end;max-width:100%}.chat-input{flex:1;min-height:44px;max-height:150px;padding:12px 16px;border:1px solid var(--gray-300);border-radius:var(--radius-lg);font-size:15px;font-family:inherit;resize:none;line-height:1.5}.chat-input:focus{outline:0;border-color:var(--primary-blue);box-shadow:0 0 0 3px rgba(59,130,246,.1)}.btn-send{width:44px;height:44px;flex-shrink:0;border-radius:var(--radius-lg);background:var(--primary-blue);border:0;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-fast)}.btn-send:disabled{background:var(--gray-300);cursor:not-allowed}.btn-send:not(:disabled):hover{background:var(--primary-purple);transform:scale(1.05)}.btn-hamburger{display:none;align-items:center;justify-content:center;width:40px;height:40px;border:0;background:none;cursor:pointer;padding:0;color:var(--gray-600);border-radius:var(--radius-sm);transition:background var(--transition-fast)}.btn-hamburger:hover{background:var(--gray-100)}.chat-overlay{position:fixed!important;top:0!important;left:0!important;right:0!important;bottom:0!important;width:100vw!important;height:100vh!important;margin:0!important;padding:0!important;background:rgba(0,0,0,.5)!important;z-index:1000!important;display:none;opacity:0;transition:opacity .3s ease;pointer-events:none}.chat-overlay.active{display:block!important;opacity:1!important;pointer-events:auto!important}@media(max-width:768px){.chat-page{position:fixed;top:0;left:0;right:0;bottom:0;width:100vw;height:100vh;height:100dvh;overflow:hidden}.chat-layout{position:relative;width:100%;height:100%}.btn-hamburger{display:flex!important}.chat-sidebar{position:fixed;left:0;top:0;bottom:0;height:100vh;width:280px;transform:translateX(-100%);transition:transform .3s ease;z-index:1001;box-shadow:2px 0 10px rgba(0,0,0,.2);background:#fff}.chat-sidebar.open{transform:translateX(0)}.chat-overlay{position:fixed;top:0;left:0;right:0;bottom:0;width:100vw;height:100vh;background:rgba(0,0,0,.5);z-index:1000;display:none;opacity:0;transition:opacity .3s ease}.chat-overlay.active{display:block;opacity:1}.chat-main{width:100%;height:100vh;height:100dvh}.messages-container{padding:var(--spacing-md);padding-bottom:calc(80px + env(safe-area-inset-bottom))}.message-content{max-width:85%}.chat-input-container{padding-bottom:max(var(--spacing-md),calc(var(--spacing-md) + env(safe-area-inset-bottom)));padding-bottom:max(20px,env(safe-area-inset-bottom))}.chat-input{font-size:16px}#chatDocumentName{font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:150px}.status-badge{font-size:11px;padding:4px 8px}.btn-icon{width:36px;height:36px}}@media(min-width:769px){.btn-hamburger{display:none!important}.chat-sidebar{position:relative;transform:translateX(0)}.chat-overlay{display:none!important}}.user-auth-section{display:inline-flex;align-items:center;gap:12px}.pro-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);border-radius:20px;color:#fff;font-size:13px;font-weight:600;letter-spacing:.5px;box-shadow:0 2px 8px rgba(102,126,234,.3)}.pro-icon{width:14px;height:14px;flex-shrink:0}.pro-text{font-weight:700}.user-menu-container{display:flex;align-items:center;gap:12px;position:relative}.user-menu-container .dropdown{position:relative}.btn-user-menu{display:flex;align-items:center;gap:10px;padding:8px 16px;background:#fff;border:1px solid #e2e8f0;border-radius:8px;cursor:pointer;transition:background-color .3s ease,border-color .3s ease;font-size:14px;color:#334155;min-height:48px;box-sizing:border-box}.btn-user-menu:hover,.btn-user-menu:focus,.btn-user-menu:active,.btn-user-menu[aria-expanded="true"],.btn-user-menu.show{padding:8px 16px!important;border-width:1px!important;min-height:48px!important;box-sizing:border-box!important}.btn-user-menu:hover{background:#f8fafc;border-color:#cbd5e1}.btn-user-menu:focus,.btn-user-menu:focus-visible{outline:0;box-shadow:0 0 0 3px rgba(59,130,246,.1);background:#f8fafc;border-color:#cbd5e1}.btn-user-menu[aria-expanded="true"],.btn-user-menu.show{background:#f8fafc;border-color:#cbd5e1}.user-menu-container .btn-user-menu.show{padding:8px 16px!important;border:1px solid #cbd5e1!important;min-height:48px!important;box-sizing:border-box!important;transform:none!important}.user-avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,#3b82f6 0%,#2563eb 100%);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;flex-shrink:0}.user-name{font-weight:500;max-width:150px;min-width:80px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dropdown-icon{font-size:10px;color:#64748b;transition:transform .3s ease;width:12px;flex-shrink:0;text-align:center}.btn-user-menu[aria-expanded="true"] .dropdown-icon{transform:rotate(180deg)}.user-dropdown{position:absolute;top:calc(100% + 8px);right:0;background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);min-width:200px;display:none;z-index:9999;overflow:visible}.user-dropdown:not(.show){display:none}.user-dropdown.show{display:block}@keyframes dropdownSlide{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.user-dropdown.show{animation:dropdownSlide .2s ease forwards}.dropdown-header{padding:16px;border-bottom:1px solid #f1f5f9}.user-info{display:flex;align-items:center;gap:12px}.user-avatar-large{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#3b82f6 0%,#2563eb 100%);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:600;flex-shrink:0}.user-details{flex:1;min-width:0}.user-name-large{font-weight:600;font-size:15px;color:#1e293b;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-email{font-size:13px;color:#64748b;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-top:2px}.user-dropdown .dropdown-item{display:flex;align-items:center;gap:12px;padding:12px 20px;color:#475569;font-size:14px;transition:all .2s ease;text-decoration:none}.user-dropdown .dropdown-item i{width:18px;font-size:16px;color:#64748b;flex-shrink:0}.user-dropdown .dropdown-item:hover{background:#f8fafc;color:#1e293b;text-decoration:none}.user-dropdown .dropdown-item:hover i{color:#3b82f6}.user-dropdown .dropdown-item:active{background:#f1f5f9}.external-icon{margin-left:auto;font-size:12px;opacity:.5}.logout-item{color:#dc2626!important}.logout-item i{color:#dc2626!important}.logout-item:hover{background:#fef2f2!important;color:#b91c1c!important}.logout-item:hover i{color:#b91c1c!important}.user-dropdown .dropdown-divider{margin:8px 0;border-color:#f1f5f9}.btn-login{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;background:linear-gradient(135deg,#3b82f6 0%,#2563eb 100%);color:#fff;border:0;border-radius:8px;font-size:14px;font-weight:500;text-decoration:none;cursor:pointer;transition:all .3s ease;box-shadow:0 2px 8px rgba(59,130,246,.2)}.btn-login:hover{background:linear-gradient(135deg,#2563eb 0%,#1d4ed8 100%);box-shadow:0 4px 12px rgba(59,130,246,.3);transform:translateY(-1px);color:#fff;text-decoration:none}.btn-login:active{transform:translateY(0);box-shadow:0 2px 4px rgba(59,130,246,.2)}.btn-login i{font-size:16px}.btn-report{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;background:linear-gradient(135deg,#ffa500 0%,#ff5f1f 100%);color:#fff;border:0;border-radius:8px;font-size:14px;font-weight:500;text-decoration:none;cursor:pointer;transition:all .3s ease;box-shadow:0 2px 8px rgba(59,130,246,.2);margin-top:20px}.btn-report:hover{background:linear-gradient(135deg,#ffa500 0%,#ff5f1f 100%);box-shadow:0 4px 12px rgba(59,130,246,.3);transform:translateY(-1px);color:#fff;text-decoration:none}.btn-report:active{transform:translateY(0);box-shadow:0 2px 4px rgba(59,130,246,.2)}.btn-report i{font-size:16px}@media(max-width:768px){.user-name{display:none}.btn-user-menu{padding:8px 12px;min-height:48px}.btn-user-menu:hover,.btn-user-menu:focus,.btn-user-menu[aria-expanded="true"]{padding:8px 12px!important;min-height:48px!important}.user-dropdown{min-width:260px;right:-20px}.pro-text{display:none}.pro-badge{padding:6px 10px}.language-btn-text{display:none}}@media(max-width:480px){.user-email{font-size:12px}.user-name-large{font-size:14px}.user-dropdown{right:-40px}}#userDropdown,#userDropdown:hover,#userDropdown:focus,#userDropdown.show,#userDropdown[aria-expanded="true"]{padding:8px 16px!important;border:1px solid #e2e8f0!important;min-height:48px!important;box-sizing:border-box!important}#userDropdown.show,#userDropdown[aria-expanded="true"]{background:#f8fafc!important;border-color:#cbd5e1!important;display:flex}.language-modal-container{display:none;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%) scale(.7);width:90%;max-width:600px;max-height:85vh;background:#fff;border-radius:16px;box-shadow:0 20px 60px rgba(0,0,0,.3);z-index:9999;opacity:0;transition:all .3s ease;overflow:hidden;pointer-events:none}.language-modal-container.active{display:block;opacity:1;transform:translate(-50%,-50%) scale(1);pointer-events:auto}.language-modal-header{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);color:#fff;padding:1.25rem 1.5rem;display:flex;align-items:center;justify-content:space-between}.language-modal-title{font-size:1.25rem;font-weight:600;margin:0;display:flex;align-items:center;gap:.5rem}.language-modal-close{background:none;border:0;color:#fff;font-size:1.5rem;cursor:pointer;padding:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:background .2s ease}.language-modal-close:hover{background:rgba(255,255,255,.2)}.language-modal-body{padding:1.5rem;max-height:calc(85vh - 140px);overflow-y:auto}.language-search{position:relative;margin-bottom:1.25rem}.language-search-input{width:100%;padding:.75rem 1rem .75rem 2.5rem;border:2px solid #e9ecef;border-radius:8px;font-size:.95rem;outline:0;transition:border-color .2s ease}.language-search-input:focus{border-color:#667eea}.language-search-icon{position:absolute;left:.875rem;top:50%;transform:translateY(-50%);color:#999;font-size:1rem}.language-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.75rem}.language-option{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:1rem .5rem;border:2px solid #e9ecef;border-radius:12px;text-decoration:none;color:#495057;transition:all .3s ease;background:#fff;cursor:pointer}.language-option:hover{transform:translateY(-4px);border-color:#667eea;background:linear-gradient(135deg,rgba(102,126,234,.05) 0%,rgba(118,75,162,.05) 100%);box-shadow:0 8px 20px rgba(102,126,234,.15);color:#667eea}.language-option:active{transform:translateY(-2px)}.language-flag{font-size:2rem;margin-bottom:.5rem;display:block}.language-name{font-size:.9rem;font-weight:500;text-align:center;line-height:1.2}.language-trigger-btn{padding:.625rem 1.25rem;background:#000;color:#fff;border:0;border-radius:8px;font-size:1rem;cursor:pointer;display:inline-flex;align-items:center;gap:.5rem;transition:background .2s ease}.language-trigger-btn:hover{background:#5568d3}@media(max-width:768px){.language-grid{grid-template-columns:repeat(2,1fr);gap:.5rem}.language-option{padding:.875rem .5rem;min-height:80px}.language-flag{font-size:1.75rem}.language-name{font-size:.85rem}.language-modal-body{padding:1rem}.language-modal-container{width:95%;max-width:none}.language-trigger-btn{margin-right:5px}}@media(max-width:480px){.language-grid{grid-template-columns:1fr}.language-option{flex-direction:row;justify-content:flex-start;padding:.75rem 1rem;min-height:auto}.language-flag{font-size:1.5rem;margin-bottom:0;margin-right:.75rem}.language-name{text-align:left;font-size:1rem}}.no-results{display:none;text-align:center;padding:3rem 1rem;color:#999}.no-results.active{display:block}.no-results-icon{font-size:3rem;margin-bottom:1rem;opacity:.3}.diamond-icon{width:20px;height:20px;margin-right:6px;color:#f60;vertical-align:middle}.diamond-pro{font-size:16px;font-weight:bold;color:#333;display:inline-flex;align-items:center}.stats-page{background:linear-gradient(135deg,#f8fafc 0%,#e2e8f0 100%);min-height:100vh;padding:2rem 0}.stats-container{max-width:1200px;margin:0 auto;padding:0 1rem}.page-header{text-align:center;margin-bottom:3rem}.page-title{font-size:2.5rem;font-weight:700;color:#1f2937;margin-bottom:.5rem}.page-subtitle{font-size:1.2rem;color:#6b7280;margin:0}.loading-state{text-align:center;padding:3rem;color:#6b7280}.loading-spinner{width:40px;height:40px;border:4px solid #e5e7eb;border-top:4px solid #2563eb;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 1rem auto}@keyframes spin{0%{transform:rotate(0deg)}100%{transform:rotate(360deg)}}.overview-card{background:#fff;border-radius:1.5rem;padding:2rem;box-shadow:0 10px 15px -3px rgba(0,0,0,.1);border:1px solid #e5e7eb;margin-bottom:2rem;position:relative;overflow:hidden}.overview-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,#2563eb,#10b981)}.overview-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:2rem;margin-top:1.5rem}.overview-item{text-align:center}.overview-number{font-size:2.5rem;font-weight:700;color:#1f2937;margin-bottom:.5rem}.overview-label{font-size:.9rem;color:#6b7280;text-transform:uppercase;letter-spacing:.5px;font-weight:500}.app-card{background:#fff;border-radius:1rem;padding:1.5rem;box-shadow:0 4px 6px -1px rgba(0,0,0,.1);border:1px solid #e5e7eb;transition:transform .3s ease,box-shadow .3s ease;margin-bottom:2rem}.app-card:hover{transform:translateY(-2px);box-shadow:0 10px 15px -3px rgba(0,0,0,.1)}.app-header{display:flex;align-items:center;gap:1rem;margin-bottom:1.5rem}.app-icon{width:50px;height:50px;border-radius:.75rem;background:linear-gradient(135deg,#2563eb,#1d4ed8);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.5rem}.app-name{font-size:1.3rem;font-weight:600;color:#1f2937;margin:0}.usage-progress{margin-bottom:1.5rem}.progress-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}.progress-label{font-size:.9rem;font-weight:500;color:#374151}.progress-numbers{font-size:.8rem;color:#6b7280}.progress-bar-container{width:100%;height:8px;background:#e5e7eb;border-radius:4px;overflow:hidden}.progress-bar{height:100%;background:linear-gradient(90deg,#10b981,#059669);border-radius:4px;transition:width .3s ease}.progress-bar.warning{background:linear-gradient(90deg,#f59e0b,#d97706)}.progress-bar.danger{background:linear-gradient(90deg,#ef4444,#dc2626)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;margin-top:1rem}.stat-item{text-align:center;padding:1rem;background:#f8fafc;border-radius:.5rem;border:1px solid #e5e7eb}.stat-number{font-size:1.5rem;font-weight:700;color:#1f2937}.stat-label{font-size:.8rem;color:#6b7280;margin-top:.25rem}.reset-info{background:#fef3c7;border:1px solid #fde68a;border-radius:.5rem;padding:1rem;margin-top:1rem;text-align:center}.reset-icon{font-size:1.2rem;color:#d97706;margin-right:.5rem}.reset-text{color:#92400e;font-weight:500;margin:0}.error-state{text-align:center;padding:3rem;color:#ef4444}.error-icon{font-size:3rem;margin-bottom:1rem}.retry-btn{background:#2563eb;color:#fff;border:0;padding:.75rem 1.5rem;border-radius:.5rem;cursor:pointer;margin-top:1rem}.retry-btn:hover{background:#1d4ed8}.no-access-state{text-align:center;padding:3rem;color:#6b7280}.upgrade-btn{background:linear-gradient(135deg,#2563eb,#1d4ed8);color:#fff;text-decoration:none;padding:1rem 2rem;border-radius:.75rem;display:inline-block;margin-top:1rem;font-weight:600;transition:transform .2s ease}.upgrade-btn:hover{transform:translateY(-2px);color:#fff;text-decoration:none}.app-badge{background-color:#9ad5fc;padding:.25rem .5rem;margin-right:5px;margin-top:10px;color:#000;text-decoration:none;font-size:.9rem}.app-links-container{max-width:calc(100% - 150px)}@media(max-width:768px){.page-title{font-size:2rem}.overview-grid{grid-template-columns:repeat(2,1fr);gap:1rem}.stats-grid{grid-template-columns:repeat(2,1fr)}}