.hero {
    background-color: #e3f2fd;
    text-align: center;
    padding: 4rem 1rem;
    font-size: 1rem;
}

.hero h1 {
    font-size: 3rem;
    color: #0c2d48;
}

.hero p {
    font-size: 1.5rem;
    margin-top: 0.5rem;
    color: #003366;
}

.info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    padding: 2rem;
    background: #f1f1f1;
}

.card {
    background: #ffffff;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 5px black;
}

.about {
    padding: 2rem;
    background-color: #fff;
    color: #333;
}

.buy-now-button {
    display: inline-block;
    margin-top: 1.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 1.1rem;
    background-color: #05b42b;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.buy-now-button:hover {
    background-color: #003366;
}

/* Small screens */
@media (max-width: 600px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
        text-align: left;
    }

    .buy-now-button {
        font-size: 1rem;
        padding: 0.6rem 1.2rem;
    }

    .info-cards {
        grid-template-columns: 1fr;
    }
}

/* Medium screens */
@media (min-width: 601px) and (max-width: 1024px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.25rem;
    }

    .info-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Large screens */
@media (min-width: 1025px) {
    .info-cards {
        grid-template-columns: repeat(3, 1fr);
    }
}