body {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
}

header {
    width: 100%;
    box-shadow: 0 0 7px rgba(0, 0, 0, 0.15);
}

#header-inner, #footer-inner {
    display: flex;
    justify-content: space-between;
    width: 100%;
    max-width: 80ch;
    padding: 1ch 0;
    margin: 0 auto;
}

#header-left, #header-right, #footer-links {
    display: flex;
    margin: 0 1ch;
    flex-wrap: wrap;
    align-content: center;
    justify-content: center;
    line-height: 2rem;
}

#header-logo {
    display: block;
    width: calc(17vw + 4rem);
    max-width: 200px;
}

#header-logo:hover, #header-logo:focus {
    opacity: 0.8;
}

a.nav-link, a.site-title, a.footer-link {
    display: flex;
    align-items: center;
    justify-content: center;
}

a.nav-link {
    min-height: 40px;
	font-family: "Open Sans", "DejaVu Sans", sans-serif;
	font-weight: 400;
	font-style: normal;
	color: rgba(0, 0, 0, .8);
    text-decoration: none;
    padding: 0 10px;
}

a.nav-link:hover {
    text-decoration: underline;
}

#logo {
    width: calc(20% + 13rem);
    max-width: 95%;
}

main {
    flex-grow: 1;
    width: 100%;
    max-width: 80ch;
    padding-left: 2ch;
    padding-right: 2ch;
    margin: 0 auto;
}

footer {
    width: 100%;
    margin-top: 3rem;
    box-shadow: 0 0 7px rgba(0, 0, 0, 0.15);
}

.footer-by {
    margin: 0 1ch;
    padding: 10px 0;
    text-align: center;
}

.ferrous-logo {
    width: 2rem;
    height: 2rem;
}

.footer-link {
    margin: 0 1ch;
    font-weight: 600;
    font-style: normal;
    text-decoration: none;
    white-space: nowrap;
}
.footer-link > .fa {
    margin-right: 0.4em;
    color: rgba(0, 0, 0, .8)
}
footer > p {
    margin-top: 0;
}

.greeting {
    margin: 5rem 0 1rem 0;
    text-align: center;
}

.greeting > p {
    font-size: 1.5rem;
    line-height: 2.2rem;
    margin: 2.3em 0 1.25rem;
}

.source > img {
    width: 1.4rem;
    height: 1.4rem;
    vertical-align: -0.11rem;
}

a.source {
    color: black;
    text-decoration: none;
    font-size: 1.4rem;
}
a.source:hover {
    text-decoration: underline;
    text-decoration-thickness: 2px;
}

.sponsors {
    font-size: 1.21875em;
    margin: 0 0 1.25em;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: stretch;
    flex-wrap: wrap;
}

.sponsors li {
    list-style-type: none;
    white-space: nowrap;
    margin: 0 0.75em;
    flex-basis: 0;
    flex-grow: 1;
    text-align: center;
}

.post-list {
    margin: 0;
    padding: 0;
    list-style-type: none;
}

.post {
    margin: 0 0 1.5rem 0;
}

.post .post-date {
    font-size: 1.25rem;
    color: #666666;
    font-weight: 300;
}

.post .post-link {
    font-size: 1.7rem;
    line-height: 2.4rem;
    font-weight: 400;
}

.all-posts-link {
    font-size: 1.25rem;
}

.post .post-link, .all-posts-link {
    text-decoration: none;
}

.post .post-link:hover, .all-posts-link:hover {
    text-decoration: underline;
}

video {
    display: block;
    max-width: 100%;
}

@media (max-width: 600px) {
    #header-inner {
        flex-direction: column;
        padding: 1ch 0 0 0;
    }

    a.nav-link {
        padding: 0 5px;
    }

    #footer-inner {
        flex-direction: column;
    }
}