* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}

body {
    background-color: #f4f4f9;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.product-card {
    background: #ffffff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    max-width: 400px;
    width: 100%;
    text-align: center;
}

.product-card h2 {
    font-size: 22px;
    margin-bottom: 10px;
    color: #333;
}

.price {
    font-size: 18px;
    color: #666;
    margin-bottom: 15px;
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 4px;
    font-weight: bold;
    font-size: 14px;
    margin-bottom: 15px;
}

.badge.sold-out {
    background-color: #ffe6e6;
    color: #d9534f;
}

.badge.in-stock {
    background-color: #e6f4ea;
    color: #28a745;
}

.description {
    font-size: 14px;
    color: #555;
    margin-bottom: 20px;
}

.waitlist-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.waitlist-form input[type="email"] {
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 14px;
    outline: none;
}

.waitlist-form input[type="email"]:focus {
    border-color: #007bff;
}

.waitlist-form button, .btn-buy {
    padding: 12px;
    background-color: #d9534f;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
}

.waitlist-form button:hover, .btn-buy:hover {
    background-color: #c9302c;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    padding: 10px;
    border-radius: 4px;
    font-size: 13px;
    margin-bottom: 15px;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    padding: 10px;
    border-radius: 4px;
    font-size: 13px;
    margin-bottom: 15px;
}