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var(--border);opacity:.3}.hero-book-stack{position:relative;width:260px;height:340px;perspective:1000px}.hero-book{position:absolute;width:200px;height:270px;border-radius:6px 12px 12px 6px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.75rem;padding:1.5rem;text-align:center;box-shadow:var(--shadow-lg),0 0 0 1px var(--border);transition:transform .4s cubic-bezier(.4,0,.2,1);animation:bookFloat 6s ease-in-out infinite}.hero-book-spine{position:absolute;left:0;top:0;bottom:0;width:6px;border-radius:6px 0 0 6px;background:linear-gradient(180deg,var(--accent),var(--accent-2));opacity:.6}.hero-book-cover{display:flex;flex-direction:column;align-items:center;gap:.75rem}.hero-book-emoji{font-size:3rem;filter:drop-shadow(0 4px 8px rgba(0,0,0,.2))}.hero-book-label{font-size:.8rem;font-weight:700;color:var(--text)}.hero-book-1{top:0;left:0;background:linear-gradient(145deg,#1e2a4a,#2a1a4a);transform:rotate(-12deg) translateZ(0);z-index:1;animation-delay:0s;box-shadow:var(--shadow-lg),0 0 30px #7c8fff4d,0 0 0 1px #7c8fff33}.hero-book-2{top:20px;left:40px;background:linear-gradient(145deg,#1a3a2a,#2a4a1a);transform:rotate(-3deg) translateZ(20px);z-index:2;animation-delay:1.5s;box-shadow:var(--shadow-lg),0 0 30px #c084fc4d,0 0 0 1px #c084fc33}.hero-book-3{top:40px;left:20px;background:linear-gradient(145deg,#3a1a2a,#4a2a1a);transform:rotate(6deg) translateZ(40px);z-index:3;animation-delay:3s;box-shadow:var(--shadow-lg),0 0 30px #f472b64d,0 0 0 1px #f472b633}.hero-book-4{top:60px;left:50px;background:linear-gradient(145deg,#2a2a3a,#3a3a4a);transform:rotate(-6deg) translateZ(60px);z-index:4;animation-delay:4.5s;box-shadow:var(--shadow-lg),0 0 30px #22d3ee4d,0 0 0 1px #22d3ee33}.hero-visual:hover .hero-book-1{transform:rotate(-18deg) translate(-15px) translateZ(0)}.hero-visual:hover .hero-book-2{transform:rotate(-6deg) translate(-5px) translateZ(20px)}.hero-visual:hover .hero-book-3{transform:rotate(8deg) translate(10px) translateZ(40px)}.hero-visual:hover .hero-book-4{transform:rotate(-4deg) translate(20px) translateZ(60px) translateY(-10px)}@keyframes bookFloat{0%,to{translate:0 0}50%{translate:0 -8px}}.hero-stats-bar{max-width:var(--max-width);margin:2rem auto 3rem;display:flex;align-items:center;justify-content:center;gap:0;flex-wrap:wrap;position:relative;z-index:1;background:var(--glass-bg);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.5rem 2rem;backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);box-shadow:var(--shadow-lg),var(--shadow-glow)}.hero-stat{display:flex;align-items:center;gap:.75rem;padding:0 1.5rem;transition:transform var(--transition)}.hero-stat:hover{transform:translateY(-3px)}.hero-stat-icon{font-size:1.8rem}.hero-stat-info{display:flex;flex-direction:column}.hero-stat-num{font-size:1.6rem;font-weight:800;line-height:1.1;background:var(--gradient-primary);background-size:200% 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