body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f0f2f5;
    color: #333;
    padding: 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

button {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 12px 24px;
    font-size: 1rem;
    border-radius: 5px;
    cursor: pointer;
    margin-bottom: 30px;
}

button:hover {
    background-color: #0056b3;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.card {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    text-align: left;
}

.card h3 {
    margin-top: 0;
    color: #222;
}

.price {
    font-size: 1.2rem;
    font-weight: bold;
    color: #28a745;
}

.old-price {
    text-decoration: line-through;
    color: #888;
    font-size: 0.9rem;
    margin-right: 10px;
}

.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: bold;
    margin-top: 10px;
}

.sale { background-color: #ffc107; color: #000; }
.out-of-stock { background-color: #dc3545; color: #fff; }
.available { background-color: #e2e3e5; color: #383d41; }