header.masthead {
        color: #fff;
        background: url('/assets/media/images/loja/produtos/software_calc_area.png') center center / cover no-repeat;
        position: relative;
        padding: 6rem 0;
    }

    header.masthead::before {
        content: '';
        position: absolute;
        top: 0; left: 0; right: 0; bottom: 0;
        background-color: rgba(0, 0, 0, 0.5); /* Dark overlay for better text contrast */
        z-index: 1;
    }

    header.masthead .container {
        position: relative;
        z-index: 2;
    }

    .masthead-subheading {
        font-size: 1.5rem;
        font-weight: 300;
        text-transform: uppercase;
        margin-bottom: 1rem;
        letter-spacing: 1px;
    }

    .masthead-heading {
        font-size: 2.5rem;
        font-weight: 700;
        text-transform: uppercase;
    }

    .btn-custom {
        background-color: #ff5722;
        border: none;
        padding: 0.75rem 1.5rem;
        font-size: 1.1rem;
        color: #fff;
        border-radius: 50px;
        transition: background-color 0.3s ease;
    }

    .btn-custom:hover {
        background-color: #e64a19;
        color: #fff;
    }

    @media (min-width: 768px) {
        .masthead-heading {
            font-size: 3.5rem;
        }
        .masthead-subheading {
            font-size: 2rem;
        }
    }
    .btn-modern-buy {
    background: linear-gradient(135deg, #ffc107, #ff9900);
    color: #000;
    padding: 0.85rem 2.2rem;
    font-size: 1.2rem;
    font-weight: 700;
    border: none;
    border-radius: 50px;
    box-shadow: 0 6px 16px rgba(255, 193, 7, 0.4);
    transition: all 0.3s ease-in-out;
    }
    .btn-modern-buy:hover {
    background: linear-gradient(135deg, #ffb300, #ffca28);
    transform: translateY(-2px) scale(1.02);
    color: #000;
    text-decoration: none;
    }