footer {
    margin-top: 20px;
    text-align: center;
    font-size: 12px;
    border-top: 1px solid #ccc;
    padding-top: 10px;
    color: #666
}

* {
    box-sizing: border-box
}

body {
    background-color: #ffc;
    color: #000;
    font-family: Times New Roman, Times, serif;
    line-height: 1.4;
    margin: 0;
    padding: 0;
    background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAECAYAAACp8Z5+AAAAEklEQVQImWNgYGD4z0AswK4SAFXuAf8EPy+xAAAAAElFTkSuQmCC)
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 1rem;
    background-color: #fff;
    border: 2px solid #336699;
    box-shadow: 5px 5px 10px #0000004d
}

h1 {
    font-family: Arial, sans-serif;
    color: #369;
    text-align: center;
    font-size: 28px;
    text-shadow: 2px 2px 2px #ccc;
    background: linear-gradient(to bottom, #fff, #eaeaea);
    padding: 10px;
    margin-top: 0;
    border-bottom: 3px solid #336699
}

a {
    color: #00f;
    text-decoration: underline;
    font-weight: 700
}

a:hover {
    color: #00c;
    text-decoration: none
}

a:visited {
    color: purple
}

select {
    background-color: #f0f0f0;
    border: 2px inset #ccc;
    font-family: Times New Roman, Times, serif;
    padding: 3px;
    font-size: 14px;
    margin-bottom: 15px
}

dl {
    margin: 15px 0
}

dl dt {
    font-weight: 700;
    color: #600;
    margin-top: 15px;
    border-left: 5px solid #336699;
    padding-left: 10px
}

dl dd {
    margin-left: 20px;
    padding: 5px 0
}

ul {
    list-style-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'%3E%3Ccircle cx='5' cy='5' r='4' fill='%23336699'/%3E%3C/svg%3E")
}

ul li {
    margin: 5px 0
}

p {
    text-align: justify;
    margin: 10px 0;
    text-indent: 20px
}

.language-selector {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    background-color: #f0f0f0;
    padding: 5px;
    border: 1px solid #ccc;
    width: fit-content;
    margin: 0 auto 20px
}

.intro {
    background-color: #ffffffb3;
    padding: 10px;
    border: 1px dashed #999;
    margin-bottom: 20px
}

hr {
    border: none;
    height: 2px;
    background: url("data:image/svg+xml,%3Csvg width='100%' height='2' xmlns='http://www.w3.org/2000/svg'%3E%3Cline x1='0' y1='1' x2='100%' y2='1' stroke='%23336699' stroke-width='2' stroke-dasharray='10,5' /%3E%3C/svg%3E") repeat-x;
    margin: 20px 0;
}

@media (max-width: 600px) {
    .container {
        width: 100%;
        padding: 10px;
        border-width: 1px
    }

    h1 {
        font-size: 24px
    }

    dl dt {
        border-left: 3px solid #336699
    }

    dl dd {
        margin-left: 10px
    }
}