@import url("https://fonts.googleapis.com/css2?family=Hind+Siliguri:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700;800&display=swap");:root{--primary:#2196f3;--primary-dark:#1976d2;--secondary:#f15a22;--secondary-dark:#d4491a;--bg-color:#f1f2f4;--text-main:#333333;--text-muted:#757575;--border-color:#e0e0e0;--radius-sm:4px;--radius-md:8px;--shadow-sm:0 1px 3px rgba(0,0,0,0.05);--shadow-md:0 4px 12px rgba(0,0,0,0.08);--container-width:1200px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,Hind Siliguri,sans-serif;background-color:var(--bg-color);color:var(--text-main);line-height:1.6}.container{max-width:var(--container-width);margin:0 auto;padding:0 15px}h1,h2,h3,h4{font-weight:700;color:#333}.btn,h1,h2,h3,h4{font-family:Hind Siliguri,sans-serif}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.7rem 1.5rem;border-radius:var(--radius-sm);font-weight:600;cursor:pointer;transition:all .2s;border:none;font-size:.95rem}.btn-blue{background-color:var(--primary);color:white}.btn-blue:hover{background-color:var(--primary-dark)}.btn-orange{background-color:var(--secondary);color:white}.btn-orange:hover{background-color:var(--secondary-dark)}.btn-outline{background-color:white;border:1px solid var(--primary);color:var(--primary)}.btn-outline:hover{background-color:var(--primary);color:white}.top-bar{background-color:#f8fafc;border-bottom:1px solid #e2e8f0;font-size:.85rem;padding:8px 0}.main-header{background-color:white;padding:15px 0}.search-container{display:flex;flex:1 1;max-width:600px;position:relative;background:#f0f2f5;border-radius:25px;padding:2px;border:1px solid #e0e0e0}.search-input{width:100%;padding:10px 20px;border:none;background:transparent;outline:none;font-size:.95rem;font-family:Hind Siliguri,sans-serif}.search-btn{padding:0 20px;background:var(--primary);color:white;border:none;border-radius:0 25px 25px 0;cursor:pointer}.nav-bar{background-color:white;border-bottom:1px solid #e2e8f0;box-shadow:0 2px 4px rgba(0,0,0,.02)}.nav-bar ul{display:flex;list-style:none}.nav-bar li a{display:block;padding:12px 18px;color:#4b5563;text-decoration:none;font-weight:500;font-size:.95rem;font-family:Hind Siliguri,sans-serif;transition:color .2s}.nav-bar li a:hover{color:var(--primary)}.book-card{background:white;padding:12px;border-radius:var(--radius-sm);transition:all .3s ease;border:1px solid #eee;display:flex;flex-direction:column;height:100%}.book-card:hover{box-shadow:var(--shadow-md);border-color:#ddd}.book-title{font-size:.9rem;font-weight:600;margin:10px 0 4px;color:#333;line-height:1.4;height:2.8rem;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.book-author{font-size:.8rem;color:#6b7280;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.book-price{font-size:1.05rem;font-weight:700;color:#333}.book-price-old{font-size:.85rem;color:#9ca3af;text-decoration:line-through;margin-right:6px}.home-section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px;padding-bottom:12px;border-bottom:2px solid #e2e8f0}.section-title{font-size:1.4rem;color:#1e293b;position:relative;font-weight:800}.section-title:after{content:"";position:absolute;bottom:-14px;left:0;width:80px;height:3px;background-color:var(--primary)}.subject-card{background:white;padding:1.5rem 1rem;border-radius:var(--radius-md);text-align:center;transition:all .3s ease;border:1px solid #f1f5f9;text-decoration:none;display:flex;flex-direction:column;align-items:center;gap:1rem}.subject-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:var(--primary)}.subject-icon{width:60px;height:60px;background:#f8fafc;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--primary);transition:all .3s}.subject-card:hover .subject-icon{background:var(--primary);color:white}.subject-name{font-weight:600;font-size:1rem;color:#334155}.product-grid{display:grid;grid-template-columns:300px 1fr 280px;gap:2rem}.product-image-box{text-align:center}.product-image-box,.product-info-box{background:white;padding:2rem;border-radius:var(--radius-sm);border:1px solid #eee}.product-sidebar{display:flex;flex-direction:column;gap:1.5rem}.sidebar-card{background:white;padding:1.5rem;border-radius:var(--radius-sm);border:1px solid #eee}.form-control{width:100%;padding:10px 15px;border:1px solid #e2e8f0;border-radius:var(--radius-sm);outline:none;font-family:Hind Siliguri,sans-serif}.input-label{display:block;font-size:.85rem;font-weight:600;margin-bottom:.4rem;color:#4b5563}@media (max-width:1024px){.product-grid{grid-template-columns:1fr}.product-sidebar{display:none}}@media (max-width:900px){.nav-bar ul{overflow-x:auto;flex-wrap:nowrap;-webkit-overflow-scrolling:touch}.nav-bar li a{white-space:nowrap;padding:12px;font-size:.88rem}}@media (max-width:768px){.hidden-mobile{display:none!important}.hamburger-btn,.mobile-search-btn{display:block!important}.desktop-nav,.desktop-search{display:none!important}.main-header .container{gap:.5rem}.books-grid{grid-template-columns:repeat(2,1fr)!important;gap:10px!important}.book-title{font-size:.82rem}.book-price{font-size:.95rem}.home-section-header{flex-direction:row;gap:.5rem}.subject-grid{grid-template-columns:repeat(3,1fr)!important;gap:10px!important}.checkout-grid,.product-grid{grid-template-columns:1fr!important}.checkout-grid{gap:1.5rem!important}.checkout-sticky{position:static!important}.admin-sidebar{display:none!important}.admin-main{margin-left:0!important}form[style*="grid-template-columns: 1fr 1fr"]{grid-template-columns:1fr!important}.container{padding:0 12px}.section-title{font-size:1.15rem}footer .container>div{grid-template-columns:1fr!important}.banner-box{height:200px!important;padding:1.5rem!important}.banner-box h1{font-size:1.5rem!important}.banner-box p{font-size:.9rem!important;margin-bottom:1rem!important}.cart-grid{grid-template-columns:1fr!important}.wishlist-grid{grid-template-columns:repeat(2,1fr)!important}.auth-card{margin:1rem!important;padding:1.5rem!important}}.site-header{position:sticky;top:0;z-index:500;box-shadow:0 2px 8px rgba(0,0,0,.07)}@keyframes drawerSlideIn{0%{transform:translateX(-100%);opacity:.5}to{transform:translateX(0);opacity:1}}.mobile-nav-drawer{animation:drawerSlideIn .28s cubic-bezier(.16,1,.3,1)}.bottom-nav{display:none}.bottom-nav-item{flex:1 1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;color:#94a3b8;text-decoration:none;font-size:.6rem;font-weight:600;padding:6px 4px;transition:color .2s;font-family:Hind Siliguri,sans-serif}.bottom-nav-item.active{color:var(--primary)}.bottom-nav-item svg{transition:transform .2s}.bottom-nav-item.active svg{transform:scale(1.15)}.bottom-nav-badge{position:absolute;top:-5px;right:-8px;background:var(--secondary);color:white;border-radius:50%;width:15px;height:15px;font-size:8px;display:flex;align-items:center;justify-content:center;font-weight:700}@media (max-width:768px){.top-bar{display:none!important}body{padding-bottom:62px}.bottom-nav{display:flex;position:fixed;bottom:0;left:0;right:0;height:62px;background:white;border-top:1px solid #e2e8f0;z-index:400;box-shadow:0 -4px 16px rgba(0,0,0,.1);align-items:stretch}.footer-links-hide{display:none!important}}@media (max-width:480px){.books-grid{gap:8px!important}.books-grid,.subject-grid{grid-template-columns:repeat(2,1fr)!important}.section-title{font-size:1rem}.main-header{padding:10px 0}}