*{margin:0;padding:0;box-sizing:border-box}body{font-family:Arial,sans-serif;line-height:1.6;background-color:#f5f5f5}#root{display:flex;flex-direction:column;min-height:100vh}.main-content{flex:1;padding:1rem}.header{background-color:#1e2a38;color:#fff;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap}.header .logo a{color:#fff;font-size:1.5rem;text-decoration:none;font-weight:700}.header nav{display:flex;gap:1rem}.header nav a{color:#fff;text-decoration:none}.header nav a:hover{text-decoration:underline}.cart-count{background:#e74c3c;padding:0 6px;border-radius:50%;font-size:.8rem;margin-left:5px}.search-bar{display:flex;align-items:center;margin-top:.5rem}.search-bar input{padding:.4rem;border-radius:4px 0 0 4px;border:none;outline:none}.search-bar button{padding:.4rem 1rem;background-color:#3498db;color:#fff;border:none;border-radius:0 4px 4px 0;cursor:pointer}.search-bar button:hover{background-color:#2980b9}.product-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem;margin-top:1rem}.product-item{background:#fff;padding:1rem;border-radius:10px;box-shadow:0 0 6px #0000001a;text-align:center}.product-image{width:100%;height:160px;object-fit:cover;margin-bottom:.5rem}.btn-add{margin-top:.5rem;padding:.4rem .8rem;background-color:#27ae60;color:#fff;border:none;border-radius:5px;cursor:pointer}.btn-add:hover{background-color:#219150}.product-detail{max-width:600px;margin:2rem auto;background:#fff;padding:1.5rem;border-radius:10px;box-shadow:0 0 10px #0000001a}.cart{max-width:700px;margin:2rem auto;background:#fff;padding:1.5rem;border-radius:10px}.cart-item{display:flex;align-items:center;margin-bottom:1rem;border-bottom:1px solid #ddd;padding-bottom:1rem}.cart-image{width:100px;height:100px;object-fit:cover;margin-right:1rem}.cart-details{flex:1}.cart-details input{width:50px;padding:.3rem;margin-top:.5rem}.btn-remove{background:transparent;border:none;color:#e74c3c;cursor:pointer;font-size:1.2rem}.checkout{max-width:600px;margin:2rem auto;background:#fff;padding:2rem;border-radius:10px;text-align:center}.footer{background:#2c3e50;color:#fff;padding:1rem 2rem;text-align:center;display:flex;justify-content:center;align-items:center;gap:1rem;flex-wrap:wrap}.footer .social-icons a{color:#fff;margin-left:10px;transition:color .3s ease}.footer .social-icons a:hover{color:#3498db}.not-found{text-align:center;padding:2rem}.btn-back,.btn-checkout{margin-top:1rem;display:inline-block;padding:.5rem 1rem;background-color:#1abc9c;color:#fff;text-decoration:none;border-radius:5px}.btn-back:hover,.btn-checkout:hover{background-color:#16a085}@media (max-width: 600px){.header{flex-direction:column;align-items:flex-start}.search-bar{width:100%;margin-top:1rem}.product-image,.cart-image{height:140px}}