styles.scss

@import url('https://fonts.googleapis.com/css2?family=Poppins&display=swap');

$white: #ffffff;
$light: #888888;
$dark: #202124;
$dark-selection: #303134;
$blue: #4487f6;
$light-blue: #8ab4f8;
$red: #f28b82;

* {
    font-family: 'Poppins', sans-serif;
    color: $white;
    text-decoration: none;
    transition: .2s;
    user-select: none;
}

body {
    background-color: $dark;
    height: 100%;
}

input[type="text"] {
    height: 44px;
    width: 565px;
    border-radius: 40px;
    padding-left: 20px;
    border: 1px solid $light;
    background-color: $dark;
}

@media (max-width: 700px) {
    input[type="text"] {
        width: 90%;
    }
}

@media (max-width: 400px) {
    input[type="text"] {
        width: 336px;
    }
}

.searchbox, form {
    text-align: center;
    margin-bottom: 40px;
}

form {
    position: absolute;
    top: 40%;
    left: 50%;
    width: 90%;
    transform: translate(-50%, -50%);
}

input[type="text"]:focus, input[type="text"]:hover {
    border: 1px solid transparent;
    box-shadow: 0px 0px 19px rgba(0, 0, 0, 1);
    background-color: $dark-selection;
    outline: none;
}

input[type="submit"] {
    background-color: $dark-selection;
    padding: 10px;
    margin: 4px;
    border: 1px solid transparent;
    border-radius: 4px;
}

input[type="submit"]:hover {
    border: 1px solid $light;
    cursor: pointer;
}

h1 {
    font-size: 6rem;
}

h6 {
    font-size: 1rem;
    transform: translateY(-400%);
    margin-bottom: -2%;
    color: $blue;
}

a {
    margin: 24px;
}

a:hover {
    text-decoration: underline;
}

header {
    text-align: right;
    z-index: 1;
}

::selection {
    background-color: $white;
    color: $dark;
}

.advanced {
    text-align: left;
    z-index: -1;

    .searchbox {
        text-align: left;

        .labels {
            display: inline-block;
            width: 240px;
        }
    }

    #advanced-btn {
        background-color: $blue;
        color: $dark;
    }

    #advanced-btn:hover {
        background-color: $light-blue;
    }

    h1 {
        margin-bottom: -1%;
        margin-top: 10%;
    }

    h2 {
        color: $red;
        font-size: 2rem;
        margin-bottom: -0.4%;
    }
}