.navbar-custom{background:#fdfcf8e6;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid rgba(0,0,0,.05);padding:1.2rem 0;transition:all .3s ease}.navbar-brand{font-family:var(--font-heading);font-weight:700;font-size:1.75rem;color:var(--primary)!important;display:flex;align-items:center;gap:.5rem;letter-spacing:-.02em}.navbar-brand i{color:var(--accent)}.nav-link{color:var(--text-muted)!important;font-weight:500;font-size:1rem;padding:.5rem 1rem!important;transition:all .2s}.nav-link:hover,.nav-link.active{color:var(--primary)!important}.btn{border-radius:var(--radius-pill);font-family:var(--font-body);font-weight:600;padding:.8rem 2rem;transition:all .3s cubic-bezier(.25,.46,.45,.94);border:none;letter-spacing:.02em}.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-md)}.btn-primary:hover{background:#0f172a;transform:translateY(-2px);box-shadow:var(--shadow-lg);color:#fff}.btn-light{background:#fff;color:var(--primary);box-shadow:var(--shadow-sm);border:1px solid rgba(0,0,0,.05)}.btn-light:hover{background:#f8fafc;color:var(--accent)}.btn-outline{background:transparent;border:2px solid var(--primary);color:var(--primary)}.btn-outline:hover{background:var(--primary);color:#fff}.card-feature,.stat-item,.top-book-card{background:var(--bg-card);border:1px solid rgba(0,0,0,.04);border-radius:var(--radius-lg);padding:2.5rem;transition:all .4s 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#3341551a}.badge-custom{background:#ffffffe6;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border:1px solid var(--gray-200);color:var(--primary);padding:.5rem 1rem;border-radius:var(--radius-pill);font-weight:600;font-size:.8rem;letter-spacing:.05em;text-transform:uppercase;box-shadow:0 2px 4px #00000008;display:inline-flex;align-items:center}.badge-custom i{color:var(--accent);margin-right:6px}.cover-upload-area{border:2px dashed var(--gray-300, #d1d5db);border-radius:var(--radius-md, 8px);cursor:pointer;transition:border-color .2s ease,background-color .2s ease;overflow:hidden;position:relative}.cover-upload-area:hover{border-color:var(--accent);background-color:#e8631b08}.cover-upload-area.drag-over{border-color:var(--accent);background-color:#e8631b0f}.cover-upload-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.5rem;padding:2rem 1rem;color:var(--text-muted, #64748b)}.cover-upload-placeholder i{font-size:2rem;color:var(--gray-400, #9ca3af)}.cover-upload-placeholder span{font-weight:500}.cover-upload-placeholder small{font-size:.75rem;color:var(--gray-400, #9ca3af)}.cover-preview{position:relative;display:flex;justify-content:center;padding:1rem;background:var(--gray-100, #f3f4f6)}.cover-preview img{max-height:200px;max-width:100%;object-fit:contain;border-radius:var(--radius-sm, 4px)}.cover-remove-btn{position:absolute;top:.5rem;right:.5rem;border-radius:50%;width:28px;height:28px;padding:0;display:flex;align-items:center;justify-content:center;background:var(--bg-card, #fff);box-shadow:var(--shadow-sm, 0 1px 2px rgba(0, 0, 0, .1))}.cover-pending-overlay{position:absolute;bottom:2rem;left:0;right:0;background:#000000a6;color:#fbbf24;font-size:.75rem;font-weight:600;text-align:center;padding:.35rem .5rem;display:flex;align-items:center;justify-content:center;gap:.35rem}.hero-section{position:relative;padding:clamp(140px,15vh,200px) 0 100px 0;overflow:hidden;background:radial-gradient(circle at top right,#fffbeb,transparent 60%)}.hero-title{font-family:var(--font-heading);font-weight:700;margin-bottom:2rem;line-height:1.1;color:var(--primary);letter-spacing:-.03em}.hero-subtitle{font-size:1.35rem;color:var(--text-muted);margin-bottom:3rem;max-width:90%;font-weight:400;line-height:1.8}.hero-decoration{position:relative;z-index:1}.book-icons-float{display:flex;justify-content:center;gap:3rem;font-size:3rem;color:var(--primary);margin-bottom:2rem}.book-icons-float i{opacity:.8}.open-book{display:flex;position:relative;width:100%;max-width:520px;height:340px;perspective:1500px;margin:0 auto}.book-shadow{position:absolute;bottom:-20px;left:50%;transform:translate(-50%);width:90%;height:30px;background:radial-gradient(ellipse,rgba(0,0,0,.25) 0%,transparent 70%);filter:blur(8px)}.book-page{flex:1;height:100%;position:relative;border-radius:4px;overflow:hidden;box-shadow:0 8px 32px #00000026,0 2px 8px #0000001a}.book-page-left{background:linear-gradient(135deg,#1e293b,#334155);border-radius:8px 0 0 8px;transform-origin:right center;transform:rotateY(3deg)}.book-page-right{background:linear-gradient(135deg,#fefce8,#fffbeb,#fef3c7);border-radius:0 8px 8px 0;transform-origin:left center;transform:rotateY(-3deg)}.book-page-left:after{content:"";position:absolute;top:0;right:0;width:30px;height:100%;background:linear-gradient(to left,rgba(0,0,0,.2),transparent);pointer-events:none}.book-page-right:before{content:"";position:absolute;top:0;left:0;width:30px;height:100%;background:linear-gradient(to right,rgba(0,0,0,.15),transparent);pointer-events:none;z-index:10}.book-page-right:after{content:"";position:absolute;inset:20px;background:repeating-linear-gradient(transparent 0px,transparent 28px,rgba(200,180,140,.1) 28px,rgba(200,180,140,.1) 29px);pointer-events:none;border-radius:4px}.book-spine{width:16px;background:linear-gradient(90deg,#5c4935,#8b7355,#a08b6f,#8b7355,#5c4935);box-shadow:inset 0 0 10px #0006,0 0 8px #0000004d;border-radius:2px;z-index:5}.page-content{position:relative;width:100%;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center}.page-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,#1e293b26,#33415533);pointer-events:none}.page-label{position:absolute;bottom:16px;left:50%;transform:translate(-50%);color:#fffc;font-size:.85rem;font-weight:500;letter-spacing:.5px;z-index:5}.stats-page{padding:2rem;text-align:center}.stats-page .book-icons-float{color:var(--primary)}.stats-page .book-icons-float i{opacity:.6}.stats-number{font-family:var(--font-heading);font-size:3.5rem;font-weight:800;color:var(--primary);margin:0;line-height:1;text-shadow:0 2px 4px rgba(0,0,0,.05)}.stats-label{color:var(--text-muted);font-size:.95rem;margin:.5rem 0 0;font-weight:500}.hero-book-carousel{position:absolute;top:0;left:0;width:100%;height:100%;overflow:hidden}.hero-book-track{display:flex;gap:12px;animation:heroScrollBooks 25s linear infinite;position:absolute;top:50%;left:0;transform:translateY(-50%);padding:.5rem 0}.hero-carousel-book{width:140px;height:210px;object-fit:cover;border-radius:6px;box-shadow:0 6px 20px #0006,inset 0 1px #fff3;flex-shrink:0;filter:brightness(1.05) contrast(1.02);border:1px solid rgba(255,255,255,.1)}@keyframes heroScrollBooks{0%{transform:translateY(-50%) translate(0)}to{transform:translateY(-50%) translate(-50%)}}@media(max-width:768px){.open-book{max-width:100%;height:280px}.stats-number{font-size:2.5rem}.hero-carousel-book{width:70px;height:105px}}.features-section{position:relative;background:#fff;padding:6rem 0;overflow:hidden}.features-section .section-title{color:var(--primary)!important}.features-section .section-subtitle{color:#64748b!important;opacity:1!important}.how-it-works-section .section-title{color:var(--primary)!important}.how-it-works-section .section-subtitle{color:#64748b!important;opacity:1!important}.feature-card{background:#f8fafc;border-radius:16px;padding:2rem;position:relative;transition:transform .3s ease,box-shadow .3s ease;display:flex;flex-direction:column}.feature-card:hover{transform:translateY(-5px);box-shadow:0 15px 30px #00000014}.feature-card-lg{display:grid;grid-template-columns:1fr 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#00000014;width:100%;max-width:340px}.chart-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.chart-title{font-size:.9rem;font-weight:600;color:#1e293b}.chart-total{background:var(--gradient-accent);color:#fff;padding:.35rem .75rem;border-radius:20px;font-size:.8rem;font-weight:600}.chart-bars{display:flex;align-items:flex-end;justify-content:space-between;gap:6px;padding-bottom:.5rem}.chart-day{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px}.bar-value{font-size:.7rem;font-weight:600;color:#64748b}.bar-wrapper{width:100%;height:100px;display:flex;align-items:flex-end;justify-content:center}.bar-fill{width:100%;max-width:32px;height:var(--height, 20%);background:linear-gradient(180deg,#94a3b8 0%,var(--primary) 100%);border-radius:4px 4px 0 0;min-height:8px;transition:all .3s ease}.chart-day:hover .bar-fill{filter:brightness(1.1);transform:scaleY(1.05);transform-origin:bottom}.chart-day.highlight .bar-fill{background:linear-gradient(180deg,#f59e0b 0%,var(--accent) 100%)}.bar-label{font-size:.75rem;color:#94a3b8;font-weight:500}.how-it-works-section{position:relative;background:#f1f5f9;padding:6rem 0}.how-it-works-section .section-header{text-align:left}.process-step{position:relative;background:#fff;border-radius:16px;padding:2.5rem 1.5rem;text-align:center;height:100%;transition:transform .3s ease,box-shadow .3s ease;overflow:hidden;box-shadow:0 4px 6px #0000000a}.process-step:hover{transform:translateY(-5px);box-shadow:0 15px 30px #00000014}.step-bg-number{position:absolute;top:10px;left:50%;transform:translate(-50%);font-family:var(--font-heading);font-size:5rem;font-weight:900;color:#3341550f;line-height:1;pointer-events:none;z-index:0}.step-content{position:relative;z-index:1}.step-content h5,.process-step h5{color:#1e293b!important;font-weight:700!important;margin-bottom:.75rem}.step-content p,.process-step p,.step-description{color:#475569!important;font-size:.95rem;line-height:1.6;margin-bottom:0}@media(prefers-reduced-motion:no-preference){.fade-in-up{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}.fade-in-up.reveal-visible{opacity:1;transform:translateY(0)}}.top-books-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:2.5rem}.top-book-card{background:transparent;border:none;box-shadow:none;text-align:left;transition:transform .3s ease}.top-book-card:hover{transform:translateY(-5px)}.top-book-cover{width:100%;aspect-ratio:2/3;background:#f1f5f9;border-radius:4px;margin-bottom:1.5rem;box-shadow:5px 5px 15px #0000001a;display:flex;align-items:center;justify-content:center;font-size:3rem;color:#94a3b8;overflow:hidden}.top-book-rank{position:absolute;top:-10px;left:10px;width:32px;height:32px;background:var(--primary);color:#fff;font-family:var(--font-heading);font-size:1.2rem;display:flex;align-items:center;justify-content:center;border-radius:50%;z-index:10}.top-book-title{font-family:var(--font-heading);font-size:1.25rem;font-weight:700;margin-bottom:.5rem;color:var(--primary)}.top-book-author{font-size:.9rem;color:var(--accent);text-transform:uppercase;letter-spacing:.05em;font-weight:600;margin-bottom:.5rem}.stats-section{padding:6rem 0;background:#fff;border-top:1px solid #f1f5f9;border-bottom:1px solid #f1f5f9}.stat-item h2{font-family:var(--font-heading);font-size:4rem;font-weight:700;color:#1e293b!important;margin-bottom:.5rem;line-height:1}.stat-item p{color:#475569!important;font-size:1.1rem;font-weight:500}.footer{padding:6rem 0 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h6{font-weight:700;margin-bottom:0;color:var(--primary)}.stars{color:#fbbf24;font-size:.9rem}#heroStatsBg{perspective:1500px;overflow:hidden;background:#1e293b}.hero-slide-pair{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;opacity:0;visibility:hidden;transform-style:preserve-3d;transform-origin:center;transition:transform 1.5s cubic-bezier(.4,0,.2,1),opacity .5s ease;transform:rotateY(-90deg)}.hero-slide-pair.active{opacity:1;visibility:visible;transform:rotateY(0);z-index:2;transition-delay:.2s}.hero-slide-pair.exit{opacity:0;transform:rotateY(90deg);z-index:1}.hero-cover-half{width:50%;height:100%;object-fit:cover;opacity:.85;position:relative;backface-visibility:hidden}.hero-cover-half:first-child{mask-image:linear-gradient(to right,#000 85%,#0009);-webkit-mask-image:linear-gradient(to right,black 85%,rgba(0,0,0,.6) 100%);border-right:1px solid rgba(0,0,0,.3)}.hero-cover-half:last-child{mask-image:linear-gradient(to left,#000 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#1f268712;border-radius:var(--radius-lg)}.glow-on-hover{transition:all .3s ease}.glow-on-hover:hover{transform:translateY(-3px);box-shadow:0 10px 25px -5px #0000001a}.bg-blob{position:absolute;border-radius:50%;filter:blur(100px);z-index:-1;opacity:.15}.blob-primary{background:#cbd5e1;width:600px;height:600px}.blob-secondary{background:#fde68a;width:500px;height:500px}.blob-accent{background:#fdba74;width:400px;height:400px}@keyframes float{0%{transform:translateY(0)}50%{transform:translateY(-15px)}to{transform:translateY(0)}}.animate-float{animation:float 6s ease-in-out infinite}.animate-float-delayed{animation:float 6s ease-in-out infinite;animation-delay:2s}.section-padding{padding-top:var(--space-section);padding-bottom:var(--space-section)}.text-justify{text-align:justify}