html, body {
    margin: 0;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    font-family: 'Open Sans', sans-serif;
    min-height: 100vh;
}

body {
    font-size: 16px;
    line-height: 1.7rem;
}

.nav-inner, main, .footer-inner {
    width: 70%;
    max-width: 1080px;
    margin: auto;
}

nav {
    border-bottom: 1px solid #ddd;
    background: rgba(0,0,0,0.04);
}

main {
    flex-grow: 1;
}

footer {
    background: #000;
    color: #fff;
    padding: 32px 0 8px 0;
}

.footer-inner {
    display: flex;
    flex-direction: row;
    align-items: top;
}
.footer-inner > * {
    flex-grow: 1;
}
.footer-other {
    text-align: right;
}

.siema-slider {
    height: 500px;
}


.slide-item {
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
    background-color: #000;
    height: 500px;
    color: #fff;
    position: relative;
}
.slide-info {
    padding: 8px 0;
    margin: 0;
    background: rgba(0,0,0,0.3);
    text-align: center;
    position: absolute;
    bottom: 0px;
    left: 0px;
    right: 0px;
}

.slide-item a.full-source-link {
    position: absolute;
    top: 8px;
    left: 8px;
    margin: 0;
    padding: 0;
    line-height: 1;
}

:fullscreen .siema-slider {
    height: 100vh;
}

:fullscreen .slide-item {
    height: 100vh;
}

a[href] {
    color: inherit;
    text-decoration: underline;
}

video {
    max-height: 600px;
    margin: auto;
    display: block;
}

.image-board {
    display: flex;
    flex-direction: row;
    align-items: stretch;
    justify-content: stretch;
    flex-wrap: wrap;
}

.image-board .image-item {
    position: relative;
    flex-shrink: 0;
    flex-basis: 280px;
    flex-grow: 1;
    margin: 8px;
}
.image-board .image-item img {
    width: 100%;
}

.subtitle {
    color: rgba(0,0,0,0.7);
    display: block;
    font-style: italic;
    text-align: center;
    line-height: 1.2;
}

@media(max-width: 600px) {
    body {
        font-size: 14px;
    }

    .nav-inner, main, .footer-inner {
        width: auto;
        margin: 0 8px;
    }

    video {
        width: 100%;
        margin: auto;
        display: block;
    }

    .siema-slider, .slide-item {
        height: 300px;
    }

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

    .footer-other {
        text-align: left;
    }
}