body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: #f8fafc;
    color: #0f172a;
    line-height: 1.6;
  }
  
  .promo img {
    max-width: 100%;
    border-radius: 0.75rem;
  }
  
  
  .logo {
    background-color: #1e3a8a;
    padding: 1rem 2rem;
    text-align: center;
  }
  
  .logo h4 {
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
  }
  
  .nav-container {
    background-color: white;
    border-bottom: 1px solid #e2e8f0;
    padding: 0.75rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  }
  
  .nav {
    display: flex;
    gap: 1.5rem;
  }
  
  .nav a {
    text-decoration: none;
    color: #475569;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.95rem;
    transition: all 0.2s ease;
  }
  
  .nav a:hover, .nav a.active {
    background-color: #1e3a8a;
    color: white;
  }
  
  .search-form {
    display: flex;
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
    overflow: hidden;
  }
  
  .search-form input {
    border: none;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    outline: none;
    flex: 1;
  }
  
  .search-form button {
    background-color: #14b8a6;
    border: none;
    padding: 0.5rem 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.25rem;
  }
  
  .home {
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    color: white;
    text-align: center;
    padding: 5rem 2rem;
  }
  
  .home h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
  }
  
  .home p {
    font-size: 1.1rem;
    opacity: 0.95;
  }
  
  .promo {
    padding: 2rem;
    background: white;
    margin: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    text-align: center;
  }
  
  .promo img {
    max-width: 100%;
    border-radius: 0.75rem;
  }
  
  .produk {
    padding: 3rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .produk h2 {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2.5rem;
    color: #1e293b;
  }
  
  .product-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.5rem;
  }
  
  .product-item {
    background: white;
    border-radius: 1rem;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    border: 1px solid #f1f5f9;
  }
  
  .product-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
  }
  
  .product-item img {
    width: 140px;
    height: 140px;
    object-fit: cover;
    border-radius: 0.75rem;
    margin-bottom: 1rem;
  }
  
  .product-item h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1e293b;
  }
  
  .product-item p {
    font-size: 1.1rem;
    font-weight: 700;
    color: #14b8a6;
    margin-bottom: 1rem;
  }
  
  .btn-keranjang, .btn-beli {
    width: 100%;
    padding: 0.75rem;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: 0.5rem;
  }
  
  .btn-keranjang {
    background-color: #ecfdf5;
    color: #059669;
    border: 1px solid #a7f3d0;
  }
  
  .btn-beli {
    background-color: #14b8a6;
    color: white;
  }
  
  .btn-keranjang:hover {
    background-color: #d1fae5;
  }
  
  .btn-beli:hover {
    background-color: #0d9488;
  }
  
  .keranjang-wrapper, .pembayaran, .riwayat {
    max-width: 800px;
    margin: 3rem auto;
    padding: 0 1rem;
  }
  
  .keranjang-wrapper h2, .pembayaran h4, .riwayat h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #1e293b;
    text-align: center;
  }
  
  table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
    background: white;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  }
  
  th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #f1f5f9;
  }
  
  th {
    background-color: #f8fafc;
    font-weight: 600;
  }
  
  .empty-cart {
    text-align: center;
    padding: 3rem;
    background: white;
    border-radius: 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  }
  
  .empty-cart a {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.75rem 1.5rem;
    background: #14b8a6;
    color: white;
    text-decoration: none;
    border-radius: 0.5rem;
    font-weight: 600;
  }
  
  .payment-form {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  }
  
  .payment-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #374151;
  }
  
  .payment-form input, .payment-form select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    font-size: 1rem;
    margin-bottom: 1.5rem;
    transition: border-color 0.2s;
  }
  
  .payment-form input:focus, .payment-form select:focus {
    outline: none;
    border-color: #14b8a6;
  }
  
  .payment-form button {
    width: 100%;
    padding: 1rem;
    background: #14b8a6;
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
  }
  
  .payment-form button:hover {
    background: #0d9488;
  }
  
  .history-list {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  }
  
  .history-item {
    padding: 1.5rem;
    border-bottom: 1px solid #f1f5f9;
  }
  
  .history-item:last-child {
    border-bottom: none;
  }
  
  .total-display {
    font-size: 1.3rem;
    font-weight: 700;
    color: #14b8a6;
    text-align: right;
    padding: 1rem;
    background: #ecfdf5;
    border-radius: 0.5rem;
    margin-top: 1rem;
  }
  
  .btn-secondary {
    background: #f1f5f9;
    color: #475569;
    border: 1px solid #e2e8f0;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s;
    display: inline-block;
    margin-right: 1rem;
  }
  
  .btn-secondary:hover {
    background: #e2e8f0;
  }
  
  .btn-danger {
    background: #fee2e2;
    color: #dc2626;
    border: 1px solid #fecaca;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    font-size: 0.9rem;
    cursor: pointer;
  }
  
  .btn-danger:hover {
    background: #fca5a5;
  }
  
  @media (max-width: 768px) {
    .nav a {
      font-size: 0.85rem;
      padding: 0.4rem 0.75rem;
    }
    
    .product-list {
      grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
      gap: 1rem;
    }
    
    .home h1 {
      font-size: 2rem;
    }
    
    .promo {
      margin: 1rem;
      padding: 1.5rem;
    }
  
    .nav-container {
      flex-direction: column;
      gap: 1rem;
      padding: 1rem;
    }
  }