* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background: #0f172a;
    color: #f8fafc;
}

.header {
    background: linear-gradient(135deg, #1d4ed8, #06b6d4);
    text-align: center;
    padding: 25px;
    color: white;
    box-shadow: 0 3px 10px rgba(0,0,0,0.3);
}

.header h1 {
    margin-bottom: 8px;
}

.container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    padding: 20px;
}

.products-section,
.cart-section {
    background: #1e293b;
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.25);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
    margin-top: 20px;
}

.product-card {
    background: #334155;
    border-radius: 12px;
    padding: 15px;
    text-align: center;
    transition: transform 0.2s ease;
}

.product-card:hover {
    transform: scale(1.03);
}

.product-card img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 10px;
}

.product-card h3 {
    color: #facc15;
    margin-bottom: 8px;
}

.product-card p {
    margin-bottom: 8px;
    font-size: 14px;
}

.price {
    font-size: 18px;
    color: #4ade80;
    font-weight: bold;
}

.product-card button,
.btn-primary,
.quantity-controls button,
.remove-btn {
    border: none;
    cursor: pointer;
    border-radius: 8px;
    padding: 10px 12px;
    margin-top: 8px;
    font-weight: bold;
}

.product-card button,
.btn-primary {
    background: #22c55e;
    color: white;
}

.product-card button:hover,
.btn-primary:hover {
    background: #16a34a;
}

.cart-items {
    margin-top: 15px;
    margin-bottom: 20px;
}

.cart-item {
    background: #334155;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 12px;
}

.cart-item h4 {
    color: #38bdf8;
    margin-bottom: 8px;
}

.quantity-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 10px 0;
}

.quantity-controls button {
    background: #f59e0b;
    color: white;
    width: 35px;
    height: 35px;
}

.quantity-controls button:hover {
    background: #d97706;
}

.remove-btn {
    background: #ef4444;
    color: white;
}

.remove-btn:hover {
    background: #dc2626;
}

.cart-summary {
    background: #0f172a;
    border: 1px solid #475569;
    padding: 15px;
    border-radius: 10px;
}

.order-result {
    margin-top: 15px;
    padding: 10px;
}

.success-msg {
    color: #4ade80;
    font-weight: bold;
}

.error-msg {
    color: #f87171;
    font-weight: bold;
}

.json-link-box {
    margin-top: 20px;
}

.json-link-box a {
    color: #38bdf8;
    text-decoration: none;
    font-weight: bold;
}

.json-link-box a:hover {
    text-decoration: underline;
}

.empty-cart {
    color: #cbd5e1;
}

.footer {
    text-align: center;
    padding: 20px;
    background: #020617;
    margin-top: 20px;
    color: #94a3b8;
}

@media (max-width: 900px) {
    .container {
        grid-template-columns: 1fr;
    }
}