body {
    background: linear-gradient(to bottom, #1397da, #9efaff);
    font-family: 'Arial', sans-serif;
}

.pricing-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-10px);
}

.buy-button {
    background-color: #1e3a8a; /* Azul escuro */
    transition: background-color 0.3s ease;
}

.buy-button:hover {
    background-color: #3b82f6;
}