body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #f9f9f9;
    margin-top: 40px;
}

.combo-card {
    background: white;
    border: 1px solid #ddd;
    padding: 20px;
    border-radius: 12px;
    width: 90%;
    max-width: 320px;
    margin: 0 auto;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.precio {
    color: #d32f2f;
    font-size: 1.2em;
    font-weight: bold;
}

input[type="number"] {
    width: 50px;
    padding: 5px;
    margin-bottom: 15px;
    text-align: center;
}

.btn-whatsapp {
    background-color: #25D366;
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
    width: 100%;
    font-size: 16px;
}