:root{--primary: #8B4513;--primary-dark: #6B3410;--accent: #CD853F;--accent-light: #DEB887;--bg: #FFF8F0;--bg-alt: #FAEBD7;--text: #2B2B2B;--text-light: #666;--border: #E8D5B7;--success: #4CAF50;--error: #F44336;--shadow: rgba(139, 69, 19, .1);--shadow-hover: rgba(139, 69, 19, .2)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,Noto Sans Tamil,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}a{color:var(--primary);text-decoration:none;transition:color .3s ease}a:hover{color:var(--accent)}button,.btn{font-family:inherit;cursor:pointer;border:none;transition:all .3s ease}img{max-width:100%;display:block}.site-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 2.5rem;background:linear-gradient(135deg,#8b4513,sienna);box-shadow:0 2px 10px var(--shadow);position:sticky;top:0;z-index:100}.brand{display:flex;align-items:center;gap:1rem;color:#fff;font-weight:700;transition:transform .3s 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0}.featured-desc{font-size:.95rem;color:#6b5b4d;font-style:italic;margin-top:.5rem}.view-collection-btn{display:inline-block;background:linear-gradient(135deg,#8b4513,sienna);color:#fff;padding:1rem 2.5rem;border-radius:12px;text-decoration:none;font-weight:600;font-size:1.1rem;transition:all .3s ease;box-shadow:0 4px 15px #8b451340;margin-top:2rem}.view-collection-btn:hover{transform:translateY(-3px);box-shadow:0 6px 25px #8b451359;background:linear-gradient(135deg,sienna,#8b4513)}.modal-close{position:absolute;top:1.5rem;right:1.5rem;background:transparent;border:none;font-size:2.5rem;color:#8b4513;cursor:pointer;width:40px;height:40px;display:flex;align-items:center;justify-content:center;transition:all .3s ease;line-height:1;padding:0;border-radius:50%}.modal-close:hover{background:#8b45131a;transform:rotate(90deg);color:sienna}.modal-close:active{transform:rotate(90deg) scale(.9)}@media (max-width: 768px){.featured-books-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem}.featured-book-card img{height:250px}}