:root {
    --text-color: #212529;
    --background-color: #fff;
}

html {
    background: var(--background-color);
    color: var(--text-color);
    font-family: sans-serif;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    padding: 0;
    margin: 0;
}

body {
    margin: auto;
    max-width: 900px;
    display: flex;
    flex-direction: column;
}

a:link, a:visited {
    color: var(--text-color);
}

#site-header { margin: 0.5rem 1rem 0 1rem; }

.entry-list { margin: 0 1rem 0 1rem; }

.site-nav h1 {
    border-bottom: none;
    flex-grow: 1;
    margin: 0;
    padding: 0;
}

.site-nav h1 a {
    text-decoration: none;
}

.site-nav { 
    display: flex;
    border-bottom: 2px solid black;
    align-items: center;
}

.site-nav ul {
    display: flex;
    margin: 0;
    padding: 0;
}

.site-nav li:first-child {
    margin-left: 0;
}

.site-nav li {
    list-style: none;
    margin-left: 1rem;
}

article {
    flex-grow: 1;
    margin: 0 1rem 0 1rem;
}

article p {
    line-height: 1.6rem;
}

.post-header h2 { margin: 20px 0px 5px 0px; }

.post-header p { 
    margin: 0;
    color: gray;
}

#site-footer {
    text-align: center;
    margin: 0 1rem 0 1rem;
    flex-grow: 1;
}