*{margin:0;padding:0;box-sizing:border-box}:root{--primary-50: #eff6ff;--primary-100: #dbeafe;--primary-200: #bfdbfe;--primary-300: #93c5fd;--primary-400: #60a5fa;--primary-500: #3b82f6;--primary-600: #2563eb;--primary-700: #1d4ed8;--primary-800: #1e40af;--primary-900: #1e3a8a;--neutral-50: #f8fafc;--neutral-100: #f1f5f9;--neutral-200: #e2e8f0;--neutral-300: #cbd5e1;--neutral-400: #94a3b8;--neutral-500: #64748b;--neutral-600: #475569;--neutral-700: #334155;--neutral-800: #1e293b;--neutral-900: #0f172a;--success-50: #f0fdf4;--success-100: #dcfce7;--success-500: #22c55e;--success-600: #16a34a;--success-700: #15803d;--warning-50: #fffbeb;--warning-100: #fef3c7;--warning-500: #f59e0b;--warning-600: #d97706;--warning-700: #b45309;--error-50: #fef2f2;--error-100: #fee2e2;--error-500: #ef4444;--error-600: #dc2626;--error-700: #b91c1c;--primary-color: var(--neutral-900);--primary-hover: var(--neutral-700);--primary-light: var(--neutral-50);--primary-border: var(--neutral-200);--secondary-color: var(--neutral-50);--secondary-hover: var(--neutral-100);--secondary-border: var(--neutral-200);--text-primary: var(--neutral-900);--text-secondary: var(--neutral-600);--text-muted: var(--neutral-500);--text-inverse: white;--border-color: var(--neutral-200);--border-focus: var(--primary-500);--background-primary: white;--background-secondary: var(--neutral-50);--background-tertiary: var(--neutral-100);--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1), 0 8px 10px -6px rgb(0 0 0 / .1);--border-radius-sm: .375rem;--border-radius-md: .5rem;--border-radius-lg: .75rem;--border-radius-xl: 1rem;--border-radius-2xl: 1.5rem;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .35s ease;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--spacing-3xl: 4rem}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6;color:var(--text-primary);background:linear-gradient(135deg,var(--background-secondary) 0%,var(--neutral-100) 100%);background-attachment:fixed;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2;color:var(--text-primary);letter-spacing:-.025em}h1{font-size:2.5rem;font-weight:800}h2{font-size:2rem;font-weight:700}h3{font-size:1.75rem;font-weight:600}h4{font-size:1.5rem;font-weight:600}h5{font-size:1.25rem;font-weight:500}h6{font-size:1.125rem;font-weight:500}.header{background:linear-gradient(135deg,var(--background-primary) 0%,var(--neutral-50) 100%);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-shadow:0 1px 3px #0000001a,0 1px 2px #0000000f;position:sticky;top:0;z-index:100;border-bottom:1px solid var(--primary-100)}.header-content{max-width:1200px;margin:0 auto;padding:var(--spacing-md) var(--spacing-xl);display:flex;justify-content:space-between;align-items:center}.app-title{display:flex;align-items:center;gap:var(--spacing-md);font-size:1.75rem;font-weight:800;background:linear-gradient(135deg,var(--primary-600),var(--primary-800));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.025em}.app-logo{height:2rem;width:auto}.app-name{font-size:1.75rem;font-weight:800;background:linear-gradient(135deg,var(--primary-600),var(--primary-800));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.025em}.connection-status{display:flex;align-items:center;gap:var(--spacing-sm);font-size:.875rem;color:var(--text-secondary)}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.search-container{max-width:1200px;margin:0 auto;padding:var(--spacing-xl) var(--spacing-xl);display:flex;gap:var(--spacing-md);align-items:center;flex-wrap:wrap}.search-box{position:relative;flex:1;min-width:250px}.search-input{width:100%;padding:var(--spacing-lg) 2.5rem var(--spacing-lg) var(--spacing-lg);border:2px solid var(--border-color);border-radius:var(--border-radius-xl);font-size:1rem;font-weight:500;transition:all var(--transition-normal);background:var(--background-primary);color:var(--text-primary);box-shadow:var(--shadow-sm)}.search-input:focus{outline:none;border-color:var(--border-focus);box-shadow:0 0 0 4px #3b82f61a,var(--shadow-md);transform:translateY(-1px)}.search-input::placeholder{color:var(--text-muted)}.clear-search{position:absolute;right:var(--spacing-md);top:50%;transform:translateY(-50%);background:none;border:none;font-size:1.25rem;color:var(--text-muted);cursor:pointer;padding:var(--spacing-xs);border-radius:50%;transition:var(--transition-fast);min-width:24px;min-height:24px;display:flex;align-items:center;justify-content:center}.clear-search:hover{background-color:var(--background-tertiary);color:var(--text-primary)}.filters{display:flex;gap:var(--spacing-sm);align-items:center}.filter-select{padding:var(--spacing-md);border:1px solid var(--border-color);border-radius:var(--border-radius-md);background:var(--background-primary);font-size:.875rem;cursor:pointer;transition:var(--transition-fast);color:var(--text-primary)}.filter-select:focus{outline:none;border-color:var(--border-focus)}.refresh-btn{padding:var(--spacing-md);border:1px solid var(--border-color);border-radius:var(--border-radius-md);background:var(--background-primary);cursor:pointer;transition:var(--transition-fast);font-size:1rem;min-width:44px;min-height:44px;display:flex;align-items:center;justify-content:center;color:var(--text-primary)}.refresh-btn:hover{background-color:var(--background-tertiary);border-color:var(--primary-color)}.refresh-btn:active{transform:scale(.95)}.main-content{max-width:1200px;margin:0 auto;padding:0 var(--spacing-xl) var(--spacing-xl)}.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--spacing-3xl) var(--spacing-xl);text-align:center}.spinner{width:40px;height:40px;border:4px solid var(--border-color);border-top:4px solid var(--primary-color);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:var(--spacing-md)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.pdf-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:var(--spacing-2xl);margin-bottom:var(--spacing-xl)}.pdf-card{background:linear-gradient(135deg,var(--background-primary) 0%,var(--neutral-50) 100%);border-radius:var(--border-radius-2xl);box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a;overflow:hidden;transition:all var(--transition-normal);cursor:pointer;border:1px solid var(--primary-100);position:relative}.pdf-card:hover{box-shadow:0 20px 25px -5px #0000001a,0 8px 10px -6px #0000001a;transform:translateY(-6px) scale(1.02);border-color:var(--primary-300)}.pdf-card:active{transform:translateY(0)}.pdf-preview{height:220px;background:linear-gradient(135deg,var(--primary-50) 0%,var(--primary-100) 50%,var(--neutral-100) 100%);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}.pdf-preview img{max-width:100%;max-height:100%;object-fit:contain}.pdf-preview:before{content:"📄";font-size:3.5rem;opacity:.8;filter:drop-shadow(0 2px 4px rgb(0 0 0 / .1))}.pdf-info{padding:var(--spacing-xl);background:var(--background-primary)}.pdf-name{font-weight:700;margin-bottom:var(--spacing-md);color:var(--text-primary);font-size:1.125rem;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;letter-spacing:-.025em}.pdf-meta{display:flex;justify-content:space-between;align-items:center;font-size:.875rem;color:var(--text-secondary)}.pdf-size{font-weight:500}.pdf-date{text-align:right}.empty-state{text-align:center;padding:var(--spacing-3xl) var(--spacing-xl)}.empty-icon{font-size:4rem;margin-bottom:var(--spacing-md);opacity:.5}.empty-state h3{margin-bottom:var(--spacing-sm);color:var(--text-primary)}.empty-state p{color:var(--text-secondary)}.pagination{display:flex;justify-content:center;align-items:center;gap:var(--spacing-md);margin-top:var(--spacing-xl)}.pagination-btn{padding:var(--spacing-md) var(--spacing-lg);border:1px solid var(--border-color);border-radius:var(--border-radius-md);background:var(--background-primary);cursor:pointer;transition:var(--transition-fast);font-size:.875rem;min-width:44px;min-height:44px;color:var(--text-primary)}.pagination-btn:hover:not(:disabled){background-color:var(--background-tertiary);border-color:var(--primary-color)}.pagination-btn:disabled{opacity:.5;cursor:not-allowed}.page-info{font-size:.875rem;color:var(--text-secondary);min-width:100px;text-align:center}.pdf-modal{position:fixed;top:0;left:0;width:100%;height:100%;z-index:1000;display:flex;align-items:center;justify-content:center}.modal-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:#00000080;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-content{background:linear-gradient(135deg,var(--background-primary) 0%,var(--neutral-50) 100%);border-radius:var(--border-radius-lg);box-shadow:0 25px 50px -12px #00000040;width:98vw;height:95vh;display:flex;flex-direction:column;position:relative;z-index:1;border:1px solid var(--primary-100)}.modal-header{padding:var(--spacing-xl) var(--spacing-2xl);border-bottom:1px solid var(--primary-200);display:flex;justify-content:space-between;align-items:center;background:linear-gradient(135deg,var(--primary-600),var(--primary-700));color:var(--text-inverse);border-radius:var(--border-radius-2xl) var(--border-radius-2xl) 0 0}.modal-header h3{font-size:1.25rem;font-weight:600;color:var(--text-inverse)}.close-btn{background:none;border:none;font-size:1.5rem;cursor:pointer;padding:var(--spacing-sm);border-radius:50%;transition:var(--transition-fast);min-width:44px;min-height:44px;display:flex;align-items:center;justify-content:center;color:var(--text-inverse)}.close-btn:hover{background-color:#fff3}.modal-body{flex:1;overflow:hidden;display:flex;flex-direction:column;min-height:0}.pdf-viewer{flex:1;display:flex;flex-direction:column;overflow:hidden;min-height:0}.canvas-container{flex:1;overflow:auto;display:flex;align-items:flex-start;justify-content:center;background:var(--background-secondary);min-height:0;touch-action:pan-y pinch-zoom;-webkit-overflow-scrolling:touch;scroll-behavior:smooth;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;-webkit-transform:translateZ(0);transform:translateZ(0)}#pdfCanvas{max-width:100%;max-height:100%;background:var(--background-primary);box-shadow:var(--shadow-lg);touch-action:none;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;-webkit-transform:translateZ(0);transform:translateZ(0)}.pdf-controls{padding:var(--spacing-md);border-top:1px solid var(--border-color);display:flex;align-items:center;gap:var(--spacing-md);background:var(--background-secondary);flex-wrap:wrap;flex-shrink:0}.control-btn{padding:var(--spacing-sm) var(--spacing-md);border:1px solid var(--border-color);border-radius:var(--border-radius-md);background:var(--background-primary);cursor:pointer;transition:var(--transition-fast);font-size:1rem;min-width:44px;min-height:44px;display:flex;align-items:center;justify-content:center;color:var(--text-primary)}.control-btn:hover{background-color:var(--background-tertiary);border-color:var(--primary-color)}.control-btn:disabled{opacity:.5;cursor:not-allowed}.zoom-slider{flex:1;min-width:100px;max-width:200px}.zoom-level{font-size:.875rem;color:var(--text-secondary);min-width:50px;text-align:center}.btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--spacing-md) var(--spacing-lg);border:2px solid transparent;border-radius:var(--border-radius-xl);font-size:.875rem;font-weight:600;line-height:1.25;text-decoration:none;cursor:pointer;transition:all var(--transition-fast);min-height:48px;min-width:48px;letter-spacing:.025em;text-transform:uppercase}.btn-primary{background:linear-gradient(135deg,var(--primary-600),var(--primary-700));color:var(--text-inverse);border-color:var(--primary-600);box-shadow:var(--shadow-md)}.btn-primary:hover{background:linear-gradient(135deg,var(--primary-700),var(--primary-800));border-color:var(--primary-700);box-shadow:var(--shadow-lg);transform:translateY(-2px)}.btn-secondary{background-color:var(--background-primary);color:var(--text-primary);border-color:var(--border-color)}.btn-secondary:hover{background-color:var(--background-tertiary);border-color:var(--primary-color)}.btn-sm{padding:var(--spacing-xs) var(--spacing-sm);font-size:.75rem;min-height:36px;min-width:36px}.btn-lg{padding:var(--spacing-md) var(--spacing-lg);font-size:1rem;min-height:48px;min-width:48px}.card{background:linear-gradient(135deg,var(--background-primary) 0%,var(--neutral-50) 100%);border-radius:var(--border-radius-2xl);box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a;border:1px solid var(--primary-100);overflow:hidden;transition:all var(--transition-normal)}.card:hover{box-shadow:0 20px 25px -5px #0000001a,0 8px 10px -6px #0000001a;transform:translateY(-4px);border-color:var(--primary-300)}.card-header{padding:var(--spacing-lg);border-bottom:1px solid var(--border-color);background:var(--background-secondary)}.card-body{padding:var(--spacing-lg)}.card-footer{padding:var(--spacing-lg);border-top:1px solid var(--border-color);background:var(--background-secondary)}@media (max-width: 768px){.header-content{padding:var(--spacing-md)}.search-container{padding:var(--spacing-md);flex-direction:column;align-items:stretch}.search-box{min-width:auto}.filters{justify-content:space-between}.main-content{padding:0 var(--spacing-md) var(--spacing-md)}.pdf-grid{grid-template-columns:1fr;gap:var(--spacing-md)}.pdf-controls{flex-direction:column;gap:var(--spacing-sm)}.zoom-slider{max-width:none}}@media (max-width: 480px){.app-title{font-size:1.25rem}.connection-status{font-size:.75rem}.pdf-card{margin:0 var(--spacing-sm)}}@media (hover: none) and (pointer: coarse){.pdf-card:hover{transform:none}.search-input,.filter-select,.refresh-btn,.pagination-btn,.control-btn{min-height:44px}.clear-search{min-width:44px;min-height:44px}}@supports (-webkit-touch-callout: none){.pdf-viewer{-webkit-overflow-scrolling:touch}.modal-content{-webkit-transform:translateZ(0)}}.fade-in{animation:fadeIn .3s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.slide-up{animation:slideUp .3s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}.scale-in{animation:scaleIn .2s ease-out}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.container-tile{background:linear-gradient(135deg,var(--background-primary) 0%,var(--neutral-50) 50%,var(--neutral-100) 100%);border:2px solid var(--neutral-200);border-radius:var(--border-radius-2xl);padding:var(--spacing-2xl);text-align:center;cursor:pointer;transition:all var(--transition-normal);min-height:240px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:var(--spacing-lg);box-shadow:0 4px 6px -1px #00000014,0 2px 4px -2px #0000000f;position:relative;overflow:hidden}.container-tile:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(0,0,0,.02),transparent);transition:left .8s ease}.container-tile:hover:before{left:100%}.container-tile:hover{transform:translateY(-8px) scale(1.03);box-shadow:0 20px 25px -5px #0000001f,0 8px 10px -6px #00000014;border-color:var(--neutral-400);background:linear-gradient(135deg,var(--background-primary) 0%,var(--neutral-50) 100%)}.container-icon{font-size:3.5rem;filter:drop-shadow(0 2px 4px rgb(0 0 0 / .15));margin-bottom:var(--spacing-sm);position:relative;z-index:1;opacity:.8}.container-title{font-size:1.75rem;font-weight:700;color:var(--neutral-900);margin:0;margin-bottom:var(--spacing-sm);letter-spacing:-.025em;position:relative;z-index:1}.container-description{font-size:1rem;color:var(--neutral-600);margin:0;line-height:1.5;font-weight:500;position:relative;z-index:1}.home-page{min-height:100vh;background:linear-gradient(135deg,var(--background-secondary) 0%,var(--neutral-100) 50%,var(--primary-50) 100%);background-attachment:fixed}.home-header{text-align:center;margin-bottom:var(--spacing-3xl);max-width:800px}.home-header h1{font-size:3rem;font-weight:800;background:linear-gradient(135deg,var(--primary-600),var(--primary-800));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:var(--spacing-lg);letter-spacing:-.02em;line-height:1.1}.home-header p{font-size:1.25rem;color:var(--text-secondary);margin:0;line-height:1.6;font-weight:500}.tiles-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:var(--spacing-2xl);max-width:1200px;width:100%;padding:0 var(--spacing-lg)}.filter-select,.refresh-btn{padding:var(--spacing-lg);border:2px solid var(--border-color);border-radius:var(--border-radius-xl);background:var(--background-primary);font-size:.875rem;cursor:pointer;transition:all var(--transition-fast);color:var(--text-primary);font-weight:500;min-height:48px;box-shadow:var(--shadow-sm)}.filter-select:focus,.refresh-btn:hover{outline:none;border-color:var(--border-focus);box-shadow:0 0 0 3px #3b82f61a,var(--shadow-md);transform:translateY(-1px)}.clear-search{position:absolute;right:var(--spacing-lg);top:50%;transform:translateY(-50%);background:var(--background-tertiary);border:none;font-size:1.25rem;color:var(--text-muted);cursor:pointer;padding:var(--spacing-sm);border-radius:var(--border-radius-md);transition:all var(--transition-fast);min-width:32px;min-height:32px;display:flex;align-items:center;justify-content:center;font-weight:700}.clear-search:hover{background-color:var(--error-100);color:var(--error-600);transform:translateY(-50%) scale(1.1)}.pagination-btn{padding:var(--spacing-md) var(--spacing-xl);border:2px solid var(--primary-200);border-radius:var(--border-radius-xl);background:linear-gradient(135deg,var(--background-primary) 0%,var(--neutral-50) 100%);cursor:pointer;transition:all var(--transition-fast);font-size:.875rem;font-weight:600;min-width:48px;min-height:48px;color:var(--primary-700);box-shadow:var(--shadow-sm)}.pagination-btn:hover:not(:disabled){background:linear-gradient(135deg,var(--primary-50) 0%,var(--primary-100) 100%);border-color:var(--primary-400);transform:translateY(-2px);box-shadow:var(--shadow-md)}.spinner{width:48px;height:48px;border:4px solid var(--primary-100);border-top:4px solid var(--primary-600);border-radius:50%;animation:spin 1s linear infinite;margin:0 auto var(--spacing-lg);box-shadow:var(--shadow-sm)}.status-indicator{width:10px;height:10px;border-radius:50%;background-color:var(--error-500);animation:none;box-shadow:0 0 0 2px #ef44444d}.status-indicator.connecting,.status-indicator.reconnecting{background-color:var(--warning-500);animation:pulse 2s infinite;box-shadow:0 0 0 2px #f59e0b4d}.status-indicator.connected{background-color:var(--success-500);animation:none;box-shadow:0 0 0 2px #22c55e4d}.status-indicator.disconnected{background-color:var(--error-500);animation:none;box-shadow:0 0 0 2px #ef44444d}.status-indicator.notification-success{background-color:var(--success-500);animation:none;box-shadow:0 0 0 2px #22c55e4d}.status-indicator.notification-error{background-color:var(--error-500);animation:none;box-shadow:0 0 0 2px #ef44444d}.status-indicator.notification-warning{background-color:var(--warning-500);animation:none;box-shadow:0 0 0 2px #f59e0b4d}.status-indicator.notification-info{background-color:#06c;animation:none;box-shadow:0 0 0 2px #0066cc4d}