*{margin:0;padding:0;box-sizing:border-box}body{font-family:Arial,sans-serif;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{width:100%;min-height:100vh}.flipbook-container{display:flex;flex-direction:column;align-items:center;min-height:100vh;background:radial-gradient(circle at 20% 80%,rgba(120,119,198,.3) 0%,transparent 50%),radial-gradient(circle at 80% 20%,rgba(255,119,198,.15) 0%,transparent 50%),radial-gradient(circle at 40% 40%,rgba(120,219,255,.1) 0%,transparent 50%),linear-gradient(135deg,#f5f7fa,#c3cfe2);padding:10px 10px 120px;font-family:Arial,sans-serif;position:relative}.flipbook-container:before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 1px 1px,rgba(255,255,255,.15) 1px,transparent 0);background-size:20px 20px;pointer-events:none;opacity:.5}.flipbook-container.loading{justify-content:center}.loading-text{font-size:24px;color:#fff;text-align:center;animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.flipbook-wrapper{margin-bottom:10px;perspective:1500px;width:100%;height:calc(100vh - 150px);display:flex;justify-content:center;align-items:center}.flipbook{border-radius:10px;max-width:100%!important;max-height:100%!important}.demoPage{display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;box-sizing:border-box;padding:0 2px}.page-content{width:100%;height:100%;position:relative;display:flex;align-items:center;justify-content:center;flex-direction:column;box-sizing:border-box}.page-number{position:absolute;bottom:20px;right:20px;background:#000000b3;color:#fff;padding:5px 10px;border-radius:15px;font-size:14px;font-weight:700}.image-page{width:100%;height:100%;display:flex;align-items:center;justify-content:center}.page-image{max-width:100%;max-height:100%;object-fit:contain;border-radius:8px;box-shadow:0 4px 8px #0000001a}.cover-page{background:linear-gradient(135deg,#4facfe,#00f2fe);color:#fff;text-align:center;width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center}.back-cover{background:linear-gradient(135deg,#fa709a,#fee140)}.cover-page h1{font-size:2.5rem;margin-bottom:20px;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.cover-page h2{font-size:2rem;margin-bottom:15px;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.cover-page p{font-size:1.2rem;margin-bottom:30px;opacity:.9}.cover-decoration{font-size:3rem;animation:sparkle 2s infinite}@keyframes sparkle{0%,to{transform:scale(1) rotate(0)}50%{transform:scale(1.2) rotate(180deg)}}.navigation{display:flex;align-items:center;gap:20px;margin-bottom:20px;background:#ffffff1a;padding:15px 30px;border-radius:50px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.nav-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:12px 24px;border-radius:25px;cursor:pointer;font-size:16px;font-weight:700;transition:all .3s ease;box-shadow:0 4px 15px #0003}.nav-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #0000004d}.nav-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.page-info{color:#fff;font-size:18px;font-weight:700;text-shadow:1px 1px 2px rgba(0,0,0,.3);min-width:150px;text-align:center}.thumbnails{position:fixed;bottom:0;left:0;right:0;width:100%;max-width:none;background:#fffffff2;padding:15px 20px;border-radius:0;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);overflow:hidden;z-index:1000;box-shadow:0 -4px 30px #0000001a;border-top:1px solid rgba(0,0,0,.05)}.thumbnails-slider{display:flex;gap:10px;transition:transform .3s ease;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}.thumbnails-slider::-webkit-scrollbar{display:none}.slider-controls{position:absolute;top:50%;transform:translateY(-50%);background:#0000001a;color:#333;border:1px solid rgba(0,0,0,.1);width:35px;height:35px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:16px;transition:all .3s ease;z-index:10}.slider-controls:hover{background:#0003;border-color:#0003;transform:translateY(-50%) scale(1.1);box-shadow:0 2px 10px #0000001a}.slider-controls:disabled{opacity:.3;cursor:not-allowed;transform:translateY(-50%) scale(1)}.slider-prev{left:10px}.slider-next{right:10px}.thumbnail{position:relative;width:70px;height:50px;border-radius:6px;overflow:hidden;cursor:pointer;transition:all .3s ease;border:2px solid rgba(0,0,0,.1);flex-shrink:0;background:#fffc;box-shadow:0 2px 8px #0000001a}.thumbnail:hover{transform:scale(1.1);border-color:#7877c680;box-shadow:0 4px 15px #7877c64d}.thumbnail.active{border-color:#7877c6;box-shadow:0 4px 20px #7877c666;transform:scale(1.05);background:#7877c61a}@media (max-width: 600px){.thumbnail.active{border:none}}.thumbnail img{width:100%;height:100%;object-fit:cover}.thumb-cover{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#7877c6,#a8a7e8);font-size:24px;color:#fff}.thumb-number{position:absolute;top:2px;right:2px;background:#7877c6e6;color:#fff;font-size:10px;padding:2px 6px;border-radius:10px;font-weight:700;box-shadow:0 1px 3px #0003}@media (max-width: 900px){.navigation{flex-direction:column;gap:10px}.thumbnails{max-width:100vw}}@media (max-width: 600px){.flipbook-container{padding:5px 5px 80px}.flipbook-wrapper{height:calc(100vh - 100px);margin-bottom:5px}.thumbnails{padding:6px 10px}.thumbnail{width:50px;height:35px}.slider-controls{width:25px;height:25px;font-size:11px}.slider-prev{left:2px}.slider-next{right:2px}}@media screen and (orientation: landscape){.flipbook-wrapper{height:calc(100vh - 150px)}.flipbook-container{padding-bottom:100px}.thumbnails{padding:10px 20px}}@media screen and (orientation: portrait){.flipbook-wrapper{height:calc(100vh - 200px)}.flipbook-container{padding-bottom:120px}}@media screen and (orientation: portrait) and (max-width: 600px){.flipbook-container{padding:2px 2px 75px}.flipbook-wrapper{height:calc(100vh - 90px);margin-bottom:2px}.flipbook{border-radius:5px}}@media screen and (orientation: landscape) and (max-height: 600px){.flipbook-container{padding:2px 2px 65px}.flipbook-wrapper{height:calc(100vh - 80px);margin-bottom:2px}.thumbnails{padding:4px 8px}.thumbnail{width:45px;height:30px}}.app{width:100%;min-height:100vh;margin:0;padding:0;overflow:hidden}.app-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;font-family:Arial,sans-serif}.loading-spinner{font-size:4rem;animation:spin 2s linear infinite;margin-bottom:20px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.app-loading p{font-size:1.5rem;margin:0}