/* Base styling */
* {
    box-sizing: border-box;
    position: relative;
}

a {
    color: white;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

a:visited {
    color: white;
}

html, body {
    height: 100%;
    width: 100%;
    min-height: 100vh;
    margin: 0;
    font-family: cmu_serif, serif;
    background-color: #f7f6f1;
    color: #333;
}

body {
    overflow-y: scroll;
}

.europe-background {
    opacity: 0.2;
    position: fixed;
    right: 0;
    top: 0;
}
.europe-background img {
    min-height: 100vh;
}

/* Main content and advertisements within the container */
.container {
    display: flex;
    margin-left: 280px;
}

main {
    width: 100%;
    max-width: 800px;
    margin: 30px auto;
}

/* Integrated advertisement banners */
.content-ad-banner {
    background-color: #e0ded6;
    color: #333;
    text-align: center;
    padding: 10px;
    font-size: 14px;
    margin: 20px 0;
    box-shadow: 0 4px 4px rgba(0, 0, 0, 0.1);
}

.content-ad-banner-bottom {
    position: fixed;
    bottom: 30px;
    width: 100%;
    max-width: 800px;
}