:root{--bg-dark: #0f1115;--bg-darker: #0a0b0e;--bg-card: #1c1e26;--primary: #4f46e5;--primary-hover: #6366f1;--accent: #06b6d4;--text-main: #f3f4f6;--text-muted: #9ca3af;--glass-bg: rgba(28, 30, 38, .7);--glass-border: rgba(255, 255, 255, .08);--font-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-heading: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--transition-fast: .2s cubic-bezier(.4, 0, .2, 1);--transition-smooth: .3s cubic-bezier(.4, 0, .2, 1);--shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-md: 0 10px 15px -3px rgba(0, 0, 0, .2), 0 4px 6px -2px rgba(0, 0, 0, .1);--shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, .3), 0 10px 10px -5px rgba(0, 0, 0, .2);--shadow-glow: 0 0 20px rgba(79, 70, 229, .4)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-primary);background-color:var(--bg-dark);color:var(--text-main);line-height:1.5;-webkit-font-smoothing:antialiased;overflow-x:hidden}h1,h2,h3,h4{font-family:var(--font-heading);font-weight:700}.hidden{display:none!important}.library-container{min-height:100vh;padding:4rem 2rem;max-width:1200px;margin:0 auto;animation:fadeIn var(--transition-smooth)}.library-header{text-align:center;margin-bottom:4rem}.library-header h1{font-size:3.5rem;margin-bottom:1rem;background:linear-gradient(135deg,#fff 0%,var(--text-muted) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:-.02em}.library-header p{font-size:1.2rem;color:var(--text-muted)}.book-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:3rem;justify-content:center}.book-card{background:var(--bg-card);border-radius:16px;padding:1.5rem;border:1px solid var(--glass-border);transition:transform var(--transition-smooth),box-shadow var(--transition-smooth);display:flex;flex-direction:column;align-items:center;text-align:center}.book-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg),var(--shadow-glow);border-color:#4f46e54d}.book-cover{width:100%;max-width:220px;aspect-ratio:2 / 3;border-radius:8px;overflow:hidden;margin-bottom:1.5rem;box-shadow:var(--shadow-md);position:relative}.book-cover img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-smooth)}.book-card:hover .book-cover img{transform:scale(1.05)}.book-info h3{font-size:1.25rem;margin-bottom:1.5rem;color:var(--text-main)}.read-btn{background:var(--primary);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:8px;font-weight:600;font-family:var(--font-primary);cursor:pointer;transition:background var(--transition-fast),transform var(--transition-fast);width:100%}.read-btn:hover{background:var(--primary-hover);transform:translateY(-2px)}.reader-container{position:fixed;top:0;left:0;width:100vw;height:100vh;background-color:var(--bg-darker);z-index:1000;animation:fadeIn var(--transition-smooth)}.reader-header{position:absolute;top:1.5rem;left:1.5rem;z-index:10000}.back-btn{display:flex;align-items:center;gap:.5rem;background:var(--glass-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);color:var(--text-main);padding:.75rem 1.25rem;border-radius:9999px;font-family:var(--font-primary);font-weight:500;cursor:pointer;transition:all var(--transition-fast);box-shadow:var(--shadow-sm)}.back-btn:hover{background:#ffffff1a;transform:translate(-4px)}#flipbookContainer{width:100%;height:100%}.df-ui-wrapper{background:var(--glass-bg)!important;backdrop-filter:blur(16px)!important;-webkit-backdrop-filter:blur(16px)!important;border:1px solid var(--glass-border)!important;box-shadow:var(--shadow-lg)!important;border-radius:12px!important}.df-ui-btn{color:var(--text-main)!important;transition:color var(--transition-fast),background var(--transition-fast)!important}.df-ui-btn:hover{color:var(--accent)!important;background:#ffffff0d!important}.df-ui-page{background-color:transparent!important}.df-ui-page input{color:var(--text-main)!important;border-color:var(--glass-border)!important}.df-ui-page label{color:var(--text-muted)!important}.df-icon-powered{display:none!important}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@media (max-width: 768px){.library-header h1{font-size:2.5rem}.library-container{padding:2rem 1rem}.back-btn{padding:.5rem 1rem;font-size:.9rem}}