.pdf-container-custom{position:relative;width:100%;height:80vh;background-color:#333;overflow:hidden;border-radius:12px;border:1px solid rgba(255,255,255,.1);box-shadow:0 10px 30px #0000004d}.pdf-loading-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background-color:#1a1a1a;z-index:99}.spinner-custom{width:40px;height:40px;border:3px solid rgba(255,255,255,.1);border-top:3px solid #3498db;border-radius:50%;animation:spin-custom .8s linear infinite}@keyframes spin-custom{to{transform:rotate(360deg)}}.pdf-iframe-style{width:100%;height:100%;border:none;opacity:0;transition:opacity .5s ease}#modalFlipbook{display:none;position:fixed;inset:0;background:#111;z-index:99999;overflow:hidden}.flipbook-viewport{width:100%;height:100%;display:flex;align-items:center;justify-content:center;overflow:hidden!important;padding:60px 0;-webkit-font-smoothing:antialiased}.flipbook-viewport.zoomed-in{overflow:auto!important;align-items:flex-start!important}.btn-3d-action i{display:flex;align-items:center;justify-content:center}#flipbook{display:none;margin:0 auto;transition:transform .25s cubic-bezier(.2,0,.2,1);transform-origin:center center;will-change:transform;perspective:2000px}#flipbook .page{background-color:#fff;box-shadow:0 0 20px #0006;overflow:hidden;backface-visibility:hidden;transform:translateZ(0)}#flipbook canvas{width:100%!important;height:100%!important;-o-object-fit:contain;object-fit:contain;image-rendering:-webkit-optimize-contrast;transform:translateZ(0)}.modal-header-3d{position:absolute;top:0;width:100%;padding:15px 25px;display:flex;justify-content:space-between;align-items:center;color:#fff;background:linear-gradient(to bottom,rgba(0,0,0,.8) 0%,transparent 100%);z-index:101;pointer-events:none}.modal-header-3d span,.modal-header-3d div{pointer-events:auto}.modal-footer-3d{position:absolute;bottom:30px;left:50%;transform:translate(-50%);width:auto;padding:8px 16px;display:flex;align-items:center;gap:5px;background:#191919d9;border-radius:100px;border:1px solid rgba(255,255,255,.1);backdrop-filter:blur(15px);-webkit-backdrop-filter:blur(15px);box-shadow:0 10px 30px #00000080;z-index:101;transition:all .3s ease}.btn-3d-action{background:transparent;border:none;color:#bbb;width:42px;height:42px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);font-size:16px;border-radius:50%}.btn-3d-action:hover{color:#3498db;background:#ffffff0d;transform:scale(1.1)}.btn-3d-action:active{transform:scale(.9)}.page-info-3d{color:#fff;font-weight:500;font-family:Inter,system-ui,-apple-system,sans-serif;font-size:13px;padding:0 15px;margin:0 5px;border-left:1px solid rgba(255,255,255,.1);border-right:1px solid rgba(255,255,255,.1);min-width:85px;text-align:center;white-space:nowrap}.close-btn-custom{color:#ff5f56!important;font-weight:700;margin-left:5px}.close-btn-custom:hover{background:#ff5f5626!important}@media (max-width: 768px){.pdf-container-custom{height:65vh;border-radius:8px}.modal-footer-3d{bottom:20px;padding:4px 8px;gap:2px;scale:.9;width:95%;justify-content:center}.page-info-3d{padding:0 8px;min-width:60px;font-size:12px}.btn-3d-action{width:38px;height:38px}.modal-header-3d{padding:10px 15px}.modal-header-3d span{font-size:14px}}.flipbook-viewport{perspective:2000px;display:flex;align-items:center;justify-content:center}