body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #F5F5ED;
    color: #00004e;
    margin: 50px 80px;
    line-height: 1.7;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

a {
    color: #6965b6;
    text-decoration: underline wavy #6965b6;
    transition: color 0.2s ease;
}
a:hover {
    color: #7976bd;
}

header {
    text-align: center;
    margin-bottom: 2em;
}
header img {
    max-width: 120px;
    display: block;
    margin: 0 auto 10px auto;
}
header h1 {
    color: #f5f5f5;
}

h2 {
    border-bottom: 2px solid #34495e;
    padding-bottom: 0.3em;
    margin-top: 2em;
    color: #222260;
}
h3 {
    margin-top: 1.2em;
    color: #222260;
}

pre {
  font-family: "Fira Mono", monospace;
  padding: 10px;
  background: #efeadc;
  margin: 20px 0px;
  border: 1px solid #ccc;
  border-radius: 6px;
}

ol {
    padding-left: 1.5em;
}
ol li {
    margin-bottom: 0.5em;
}

footer {
    margin-top: 3em;
    text-align: center;
    border-top: 1px solid #34495e;
    padding-top: 1em;
    color: #888;
}