style.css

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    width: auto;
    height: 100vh;
    background: linear-gradient(to bottom, #4CAF50, #2196F3);
    background-repeat: no-repeat;
}

.main-image {
    padding-top: 50px;
}

.front {
    background-color: #0C172D;
    margin: 5% 10%;
    border-radius: 20px;
    height: 80vh;
    text-align: center;
}

h1 {
    color: white;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    font-size: 35px;
    font-weight: bolder;
    padding-bottom: 20px;
}

.social-media a {
    font-size: 25px;
    background-color: #464F56;
    margin-right: 10px;
    padding: 10px;
    border-radius: 10px;
}

.pu {
    text-align: center;
}

.popup-btn {
    padding: 10px 20px;
    color: white;
    background: linear-gradient(to bottom, #4CAF50, #2196F3);
    border: 3px solid #0C172D;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    border-radius: 20px;
    color: white;
    font-size: 16px;
    cursor: pointer;
    font-size: 20px;
    text-align: center;
}

.popup {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: linear-gradient(to bottom, #4CAF50, #2196F3);
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    padding: 20px;
    border-radius: 10px;
    z-index: 1000;
}

.popup-content {
    color: white;
    text-align: center;
}

.close {
    position: absolute;
    top: 5px;
    right: 10px;
    cursor: pointer;
    color: white;
    font-size: 20px;
}


@media only screen and (max-width: 768px) {
    .front {
        margin: 10% 5%;
    }
}


@media only screen and (max-width: 576px) {

    body {
        font-family: Verdana, Geneva, Tahoma, sans-serif;
    }

    .front {
        margin: 15% 2%;
    }

    h1 {
        font-size: 28px;
    }

    .social-media a {
        font-size: 20px;
        padding: 8px;
        margin-right: 5px;
    }
}