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solid #f3f3f3;border-top:4px solid #c50d0d;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 15px;}@keyframes spin{0%{transform:rotate(0deg);}100%{transform:rotate(360deg);}}.catalog-loading p{margin:0;font-size:14px;font-weight:500;}.catalog-image-wrapper{position:relative;max-width:100%;display:flex;justify-content:center;align-items:center;}.catalog-main-image{max-width:100%;width:auto;max-height:75vh;height:auto;border-radius:12px;box-shadow:0 8px 30px rgba(0,0,0,0.15);transition:all 0.4s cubic-bezier(0.4,0,0.2,1);cursor:zoom-in;position:relative;z-index:1;object-fit:contain;background:white;padding:10px;}.catalog-main-image:hover{box-shadow:0 12px 40px rgba(0,0,0,0.2);transform:scale(1.01);}.btn-nav-left,.btn-nav-right{position:absolute;top:50%;transform:translateY(-50%);width:56px;height:56px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,0.95);color:#c50d0d;border:2px solid rgba(197,13,13,0.2);border-radius:50%;font-size:24px;cursor:pointer;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);z-index:10;box-shadow:0 4px 20px rgba(0,0,0,0.1);backdrop-filter:blur(10px);}.btn-nav-left{left:30px;}.btn-nav-right{right:30px;}.btn-nav-left:hover:not(:disabled),.btn-nav-right:hover:not(:disabled){background:#c50d0d;color:white;border-color:#c50d0d;transform:translateY(-50%) scale(1.1);box-shadow:0 6px 25px rgba(197,13,13,0.4);}.btn-nav-left:disabled,.btn-nav-right:disabled{background:rgba(0,0,0,0.05);color:#ccc;border-color:rgba(0,0,0,0.1);cursor:not-allowed;opacity:0.5;}.page-info-bottom{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:8px;background:rgba(255,255,255,0.98);padding:12px 20px;border-radius:30px;font-size:14px;font-weight:600;color:#2c3e50;box-shadow:0 4px 20px rgba(0,0,0,0.15);z-index:10;backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,0.8);}.page-info-bottom i{color:#c50d0d;font-size:16px;}.page-info-bottom .page-current{color:#c50d0d;font-size:16px;font-weight:700;min-width:20px;text-align:center;}.page-info-bottom .page-separator{color:#adb5bd;margin:0 2px;}.page-info-bottom .page-total{color:#6c757d;font-weight:500;}.zoom-hint{position:absolute;top:30px;right:30px;display:flex;align-items:center;gap:8px;background:rgba(197,13,13,0.9);color:white;padding:8px 16px;border-radius:20px;font-size:12px;font-weight:500;z-index:10;opacity:0;animation:fadeInHint 2s ease-in-out 1s forwards;box-shadow:0 4px 15px rgba(197,13,13,0.3);}@keyframes fadeInHint{to{opacity:1;}}.zoom-hint i{font-size:14px;}.catalog-thumbnails-wrapper{background:#ffffff;border-top:1px solid #e9ecef;}.thumbnails-header{display:flex;justify-content:space-between;align-items:center;padding:20px 25px 15px;border-bottom:1px solid #f0f0f0;}.thumbnails-title{display:flex;align-items:center;gap:10px;font-size:1.1rem;font-weight:600;color:#2c3e50;margin:0;}.thumbnails-title i{color:#c50d0d;font-size:20px;}.thumbnails-count{font-size:0.9rem;color:#6c757d;font-weight:500;}.catalog-thumbnails{display:flex;gap:12px;padding:20px 25px;overflow-x:auto;scroll-behavior:smooth;-webkit-overflow-scrolling:touch;}.catalog-thumbnails::-webkit-scrollbar{height:8px;}.catalog-thumbnails::-webkit-scrollbar-track{background:#f8f9fa;border-radius:4px;}.catalog-thumbnails::-webkit-scrollbar-thumb{background:#c50d0d;border-radius:4px;}.catalog-thumbnails::-webkit-scrollbar-thumb:hover{background:#a00a0a;}.thumb{position:relative;min-width:90px;width:90px;cursor:pointer;border:3px solid transparent;border-radius:10px;overflow:hidden;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);background:#f8f9fa;flex-shrink:0;}.thumb:hover{border-color:#c50d0d;transform:translateY(-5px) scale(1.05);box-shadow:0 8px 25px rgba(197,13,13,0.3);}.thumb.active{border-color:#c50d0d;box-shadow:0 0 0 4px rgba(197,13,13,0.2),0 8px 25px rgba(197,13,13,0.3);transform:translateY(-5px) scale(1.05);}.thumb-image-wrapper{position:relative;width:100%;padding-top:100%;overflow:hidden;background:#f8f9fa;}.thumb-image-wrapper img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform 0.3s ease;}.thumb:hover .thumb-image-wrapper img{transform:scale(1.1);}.thumb-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(197,13,13,0);display:flex;align-items:center;justify-content:center;transition:background 0.3s ease;opacity:0;}.thumb:hover .thumb-overlay{background:rgba(197,13,13,0.7);opacity:1;}.thumb-overlay i{color:white;font-size:24px;transform:scale(0);transition:transform 0.3s ease;}.thumb:hover .thumb-overlay i{transform:scale(1);}.thumb-number{position:absolute;bottom:8px;right:8px;background:rgba(197,13,13,0.95);color:white;padding:4px 10px;border-radius:12px;font-size:11px;font-weight:700;box-shadow:0 2px 8px rgba(0,0,0,0.2);z-index:2;}.thumb.active .thumb-number{background:#c50d0d;box-shadow:0 2px 12px rgba(197,13,13,0.5);}.zoom-modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.97);z-index:9999;cursor:zoom-out;align-items:center;justify-content:center;padding:20px;animation:fadeIn 0.3s ease;}@keyframes fadeIn{from{opacity:0;}to{opacity:1;}}.zoom-modal.active{display:flex;}.zoom-modal-content{position:relative;max-width:95%;max-height:95vh;display:flex;align-items:center;justify-content:center;}.zoom-modal img{max-width:100%;max-height:95vh;height:auto;border-radius:12px;box-shadow:0 20px 60px rgba(0,0,0,0.5);animation:zoomIn 0.3s ease;object-fit:contain;}@keyframes zoomIn{from{transform:scale(0.9);opacity:0;}to{transform:scale(1);opacity:1;}}.zoom-modal-close{position:absolute;top:30px;right:30px;background:rgba(255,255,255,0.15);color:white;border:2px solid rgba(255,255,255,0.3);width:56px;height:56px;border-radius:50%;font-size:28px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all 0.3s ease;z-index:10000;backdrop-filter:blur(10px);}.zoom-modal-close:hover{background:rgba(255,255,255,0.25);border-color:rgba(255,255,255,0.5);transform:rotate(90deg) scale(1.1);}.zoom-controls{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);display:flex;gap:10px;background:rgba(255,255,255,0.15);padding:10px;border-radius:30px;backdrop-filter:blur(10px);}.zoom-btn{width:44px;height:44px;border-radius:50%;border:2px solid rgba(255,255,255,0.3);background:rgba(255,255,255,0.1);color:white;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all 0.3s ease;font-size:18px;}.zoom-btn:hover{background:rgba(255,255,255,0.25);border-color:rgba(255,255,255,0.5);transform:scale(1.1);}.catalog-actions{margin-top:40px;}.btn-download-pdf{display:inline-flex;align-items:center;gap:12px;padding:16px 32px;background:linear-gradient(135deg,#c50d0d 0%,#a00a0a 100%);color:white;text-decoration:none;border-radius:50px;font-weight:600;font-size:16px;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);box-shadow:0 4px 20px rgba(197,13,13,0.4);border:none;}.btn-download-pdf:hover{background:linear-gradient(135deg,#a00a0a 0%,#8a0808 100%);transform:translateY(-3px);box-shadow:0 8px 30px rgba(197,13,13,0.5);color:white;}.btn-download-pdf i:first-child{font-size:20px;}.btn-download-pdf i:last-child{font-size:18px;margin-left:4px;}.catalog-empty{background:white;border-radius:20px;padding:60px 20px;box-shadow:0 10px 40px rgba(0,0,0,0.1);}.catalog-empty i{font-size:64px;color:#dee2e6;margin-bottom:20px;}.catalog-empty h3{color:#2c3e50;margin-bottom:10px;}@media (max-width:768px){.catalog-section{padding:40px 0;}.catalog-title{font-size:2rem;}.catalog-subtitle{font-size:1rem;}.catalog-display{padding:20px 15px;min-height:400px;}.catalog-main-image{max-width:100%;max-height:60vh;padding:5px;}.btn-nav-left,.btn-nav-right{width:48px;height:48px;font-size:20px;}.btn-nav-left{left:15px;}.btn-nav-right{right:15px;}.page-info-bottom{bottom:20px;padding:10px 16px;font-size:13px;}.page-info-bottom .page-current{font-size:15px;}.zoom-hint{top:20px;right:20px;padding:6px 12px;font-size:11px;}.thumbnails-header{padding:15px 20px 12px;}.thumbnails-title{font-size:1rem;}.catalog-thumbnails{padding:15px 20px;gap:10px;}.thumb{min-width:75px;width:75px;}.btn-download-pdf{font-size:14px;padding:14px 28px;gap:10px;}.zoom-modal-close{top:15px;right:15px;width:48px;height:48px;font-size:24px;}.zoom-controls{bottom:20px;padding:8px;gap:8px;}.zoom-btn{width:40px;height:40px;font-size:16px;}}@media (max-width:480px){.catalog-display{min-height:300px;}.thumb{min-width:60px;width:60px;}.thumb-number{font-size:10px;padding:3px 8px;}}