.bottom-section {
        font-family: Arial, sans-serif;
        padding: 20px;
        text-align: center;
        box-shadow: #ccc 0px 0px 10px; /* Adding shadow */
        max-width: 1200px; /* Max width for larger screens */
        margin: auto; /* Center align the module */
        background-color: #eeeeee; /* Background color for the section */
margin-top:30px;
    }
    .cta-container {
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
    }

    .cta-button {
        width: 300px; /* Fixed width */
        height: 300px; /* Fixed height to maintain square shape */
        margin: 10px;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        text-decoration: none;
        display: flex;
        justify-content: center;
        align-items: center;
        position: relative; /* Positioning for the overlay */
        background-size: cover; /* Cover the button area */
        overflow: hidden; /* Ensures no overflow of child elements */
    }
.cta-button span {
    color: #FFF !important; /* Assuming white is a good contrast color against the overlay */
    font-size: 20px !important;; /* Adjust the font size as needed */
    position: relative; /* This ensures that the z-index applies correctly */
    z-index: 3; /* Ensuring text is above the overlay */
    text-align: center;
}

.cta-button::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.3); /* Semi-transparent overlay */
    z-index: 2; /* Overlay is below the text */
}
.cta-button:hover::after {
    background-color: rgba(0, 0, 0, 0.6); /* Darker semi-transparent overlay on hover */
}

    .cta-button-oxygen {
        background-image: url('https://ueeshop.ly200-cdn.com/u_file/UPBD/UPBD189/2310/photo/1182f35651.jpg');
    }
    .cta-button-hyperbaric {
        background-image: url('https://ueeshop.ly200-cdn.com/u_file/UPBD/UPBD189/2311/photo/7667baaa66.jpg');
    }
    .cta-button-hydrogen {
        background-image: url('https://ueeshop.ly200-cdn.com/u_file/UPBD/UPBD189/2306/photo/49b393f100.jpg');
    }
    /* Responsive design for smaller screens */
    @media (max-width: 600px) {
        .cta-button {
            width: 300px; /* Adjusted width for smaller screens */
            height: 300px; /* Adjusted height for smaller screens */
        }
        .company-intro p {
            font-size: 16px; /* Smaller font size for text */
        }
    }