:root {
    --background: #1f1f1f;
    --primary-color: #3498db;
    --incidental-color: #bbbbbb;
    --secondary-color: #2ecc71;
    --text-color: #f5f5f5;
    --accent-color: #e74c3c;

    --font-family: 'Helvetica Neue', Arial, sans-serif;
    --base-font-size: 16px;
    --heading-font-size: 2em;

    --padding: 20px;
    --margin: 20px;
    --border-radius: 4px;

    --transition-duration: 0.3s;
}
body {
    margin: 0;
    padding: 0;
    background-color: #121212;
    color: #fff;
    font-family: Arial, sans-serif;
}
header {
    background-color: var(--background);
    padding: 20px;
    text-align: center;
    position: relative;
}
header h1 {
    margin: 0;
    font-size: 2rem;
}
footer {
    text-align: center;
    padding: 15px;
    background-color: var(--background);
    color: var(--incidental-color);
    margin-top: auto;
    position: relative;
}
.container {
    max-width: 900px;
    margin: 20px auto;
    padding: 0 20px;
}
.ad-space {
    max-width: 900px;
    max-height: 280px;
    text-align: center;
    background-color: var(--background);
    margin: 20px auto;
}
.google_ads_display {
    display:block;
    min-width:320px;
    max-width:900px;
    width:100%;
    height:90px;
}
#languageSelect {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    right: 20px;
    padding: 5px 10px;
    font-size: 1rem;
    background-color: #222;
    color: #fff;
    border: none;
}