/* General page style */
body {
    background-color: #f5f7fa;
    font-family: Arial, Helvetica, sans-serif;
    color: #333333;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

/* Header style */
.page-header {
    background-color: #2f5d8c;
    color: white;
    text-align: center;
    padding: 35px 20px;
}

/* Navigation links */
.nav-box {
    background-color: white;
    text-align: center;
    padding: 15px;
    border-bottom: 2px solid #d0d7de;
}

/* Basic link style */
a {
    color: #1f5fa8;
    text-decoration: none;
    font-weight: bold;
    margin: 0 10px;
}

/* Hover link behavior */
a:hover {
    color: #d35400;
    text-decoration: underline;
}

/* Visited link behavior */
a:visited {
    color: #6f42c1;
}

/* Main page layout */
main {
    width: 80%;
    margin: 30px auto;
}

/* Content boxes */
.content-box {
    background-color: white;
    border: 2px solid #d0d7de;
    padding: 20px;
    margin-bottom: 25px;
}

/* Heading style */
h1 {
    font-size: 36px;
}

h2 {
    color: #2f5d8c;
}

/* Highlight for internal section */
.highlight {
    background-color: #fff7e6;
}

/* Extra space for internal link demo */
.spacer {
    margin-bottom: 300px;
}