* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: Georgia, "Times New Roman", serif;
    color: #1c2430;
    background: #f6f7f4;
    line-height: 1.55;
}
header {
    background: #143028;
    color: #f4f7f2;
    padding: 1.2rem 1.5rem;
}
header a { color: inherit; text-decoration: none; }
header p { margin: .25rem 0 0; font-family: "Segoe UI", sans-serif; font-size: .95rem; opacity: .85; }
nav {
    background: #fff;
    border-bottom: 1px solid #d9e0d6;
    padding: .6rem 1.5rem;
    font-family: "Segoe UI", sans-serif;
    font-size: .92rem;
}
nav a { color: #143028; margin-right: .9rem; text-decoration: none; }
nav a:hover { text-decoration: underline; }
main { max-width: 760px; margin: 0 auto; padding: 1.5rem; }
h1 { font-size: 1.8rem; margin-top: 0; }
h2 { font-size: 1.25rem; margin-top: 1.8rem; }
ol, ul { padding-left: 1.2rem; }
a { color: #0d5c4d; }
footer {
    max-width: 760px;
    margin: 0 auto;
    padding: 0 1.5rem 2rem;
    font-family: "Segoe UI", sans-serif;
    font-size: .85rem;
    color: #5c675f;
}