form{max-width:400px;margin:2rem auto;padding:2rem;background-color:#fff;border-radius:16px;box-shadow:0 8px 24px #0000001a;display:flex;flex-direction:column;gap:1rem;font-family:Inter,sans-serif}input{padding:.75rem 1rem;border:1px solid #ddd;border-radius:8px;font-size:1rem;transition:border-color .2s,box-shadow .2s}input:focus{border-color:#ff6b6b;box-shadow:0 0 0 3px #ff6b6b33;outline:none}button[type=submit]{padding:.75rem 1rem;background-color:#ff6b6b;color:#fff;font-weight:600;border:none;border-radius:8px;cursor:pointer;transition:background-color .3s ease}button[type=submit]:hover{background-color:#ff4b4b}.logged-in{max-width:400px;margin:2rem auto;padding:2rem;background-color:#fff;border-radius:16px;box-shadow:0 8px 24px #0000001a;display:flex;flex-direction:column;gap:1rem;font-family:Inter,sans-serif}.logged-in p{font-size:1rem;color:#333}.logged-in button{padding:.75rem 1rem;background-color:#ff6b6b;color:#fff;font-weight:600;border:none;border-radius:8px;cursor:pointer;transition:background-color .3s ease}.logged-in button:hover{background-color:#ff4b4b}body{background:linear-gradient(135deg,#f5f7fa,#e4ebf0);font-family:Inter,sans-serif;margin:0;padding:0;color:#333}.main{padding:2rem;min-height:100vh;box-sizing:border-box;text-align:center}.shop-title{font-size:2rem;font-weight:700;margin-bottom:.5rem;color:#333}.shop-subtitle{font-size:1.2rem;color:#555;margin-bottom:2rem}.product-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem}.product-card{background-color:#fff;border-radius:20px;box-shadow:0 8px 20px #00000014;padding:1.5rem;transition:transform .3s ease,box-shadow .3s ease;display:flex;flex-direction:column;align-items:center}.product-card:hover{transform:translateY(-5px);box-shadow:0 12px 25px #0000001f}.product-image{width:100%;height:180px;object-fit:cover;border-radius:15px;margin-bottom:1rem}.product-name{font-size:1.3rem;font-weight:600;margin-bottom:.5rem;text-align:center;color:#222}.product-description{font-size:.95rem;margin-bottom:.7rem;color:#555;text-align:center}.product-price{font-weight:700;font-size:1.1rem;margin-bottom:1rem;color:#4caf50}.add-to-cart-btn{background-color:#4caf50;color:#fff;border:none;padding:.7rem 1.2rem;border-radius:12px;cursor:pointer;font-weight:600;transition:background-color .3s ease,transform .2s ease}.add-to-cart-btn:hover{background-color:#45a049;transform:scale(1.05)}@media (max-width: 500px){.product-card{padding:1rem}.product-image{height:150px}.shop-title{font-size:2rem}.shop-subtitle{font-size:1rem}}.cart-container{max-width:800px;margin:3rem auto;padding:2rem;background:#fff;border-radius:16px;box-shadow:0 4px 20px #00000014;font-family:Inter,system-ui,sans-serif}.cart-container h2{text-align:center;font-size:1.8rem;margin-bottom:1.5rem;color:#222}.cart-list{list-style:none;padding:0;margin-bottom:2rem}.cart-item{display:flex;justify-content:space-between;align-items:center;padding:1rem;margin-bottom:.75rem;border:1px solid #eee;border-radius:10px;background:#fafafa;transition:background .2s ease}.cart-item:hover{background:#f3f3f3}.cart-item button{background:#ff4c4c;border:none;color:#fff;font-weight:600;border-radius:6px;padding:.4rem .8rem;cursor:pointer;transition:background .2s ease}.cart-item button:hover{background:#e03e3e}.cart-actions{display:flex;justify-content:center;gap:1rem}.cart-actions button{background:#007bff;border:none;color:#fff;font-weight:600;border-radius:8px;padding:.7rem 1.4rem;cursor:pointer;transition:background .2s ease,transform .1s ease}.cart-actions button:hover{background:#0065d1;transform:translateY(-1px)}.cart-actions button:nth-child(1){background:#6c757d}.cart-actions button:nth-child(1):hover{background:#555b61}.empty-cart{text-align:center;font-size:1.2rem;color:#666;margin-top:2rem}.container{display:flex;flex-direction:column;min-height:100vh;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}.header{position:sticky;top:0;background-color:#f8f8f8;padding:1rem 2rem;box-shadow:0 4px 12px #0000001a;z-index:1000}.nav{display:flex;justify-content:space-between;align-items:center}.nav-left,.nav-right{display:flex;gap:1rem;align-items:center}.nav-center{text-align:center;flex:1}.store-name{font-size:1.8rem;font-weight:800;color:#333;text-decoration:none;transition:color .3s ease,transform .2s ease}.store-name:hover{color:#4caf50;transform:scale(1.05)}.cart-count{font-weight:700;color:#4caf50;margin-left:.2rem}.button{background-color:#ff6b6b;color:#fff;border:none;padding:.5rem 1rem;border-radius:8px;cursor:pointer;font-weight:600;transition:background-color .3s ease,transform .2s ease}.button:hover{background-color:#ff4c4c;transform:translateY(-2px)}.nav-link{text-decoration:none;color:#333;font-weight:500;transition:color .3s ease,transform .2s ease}.nav-link:hover{color:#4caf50;transform:translateY(-2px)}.main{flex:1;padding:2rem;background-color:#f5f5f5}.footer{text-align:center;padding:1rem 2rem;background-color:#f8f8f8;box-shadow:0 -2px 8px #0000000d;font-size:.9rem;color:#555}@media (max-width: 768px){.nav{flex-direction:column;gap:.5rem}.nav-center{margin:.5rem 0}.store-name{font-size:1.5rem}}