html {
    display: flex;
    flex-direction: column;
    min-height: 100%;
    font-size: 1em;
}

body, ul, li {
    padding: 0;
    margin: 0;
}

body {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    align-items: center;
    font-family: 'Roboto', sans-serif;
    font-weight: 400;
    line-height: 1.45;
    color: #333;
    background-color: #f6f6f6;
}

h1, h2, h3, h4 {
    margin: 1.414em 0 0.5em;
    font-weight: inherit;
    line-height: 1.2;
}

h1 {
    margin-top: 0;
    font-size: 1.602em;
}

h2 {
    font-size: 1.424em;
}

h3 {
    font-size: 1.266em;
}

p {
    margin-bottom: 1.3em;
}

.header-bottom h1 {
    font-family: 'Droid Sans', serif;
    font-size: 2.441em;
}

.font-small {
    color: #939ca6;
    font-size: 0.79em;
}

img {
    border: 0;
}

header, main, footer {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;

    width: 100%;
    max-width: 1180px;
}

header, footer {
    justify-content: space-between;
    flex-grow: 0;
}

main {
    justify-content: space-around;
    flex-grow: 1;
}

/* header */

.logo {
    font-size: 0;
}

.logo img {
    width: 111px;
    height: 87px;
}

.change-lang, .navigation {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-end;
    list-style: none;
}

.change-lang a {
    display: block;
    margin: 8px;
    padding: 5px;
    color: white;
    background-color: #2d2d2d;
    text-decoration: none;
    border-radius: 100%;
    line-height: 1.2;
    font-size: 0.75em;
    text-transform: uppercase;
}

.change-lang a:hover {
    background: gray;
}

.navigation a {
    display: block;
    padding: 12px;
    color: #333;
    text-decoration: none;
}

.navigation a:hover {
    color: #fff;
    background: grey;
    border-radius: 10px;
}

.header-bottom {
    display: flex;
    flex-basis: 100%;
    justify-content: center;
    align-items: center;
    min-height: 100px;
    text-transform: uppercase;
}

/* main */

.post-preview {
    display: flex;
    flex-direction: column;
    flex-basis: calc(33% - 6px);
    justify-content: space-between;
    box-sizing: border-box;
    background-color: #fff;
    padding-bottom: 30px;
    margin-bottom: 10px;
}

.post-preview-header {
    font-size: 0;
}

.post-preview-header img {
    width: 100%;
    height: auto;
}

.post-preview-body {
    box-sizing: border-box;
    flex-grow: 1;
    padding-bottom: 8px;
    padding-left: 20px;
    padding-right: 20px;
}

.post-preview-body a {
    text-decoration: none;
}

.post-preview-body p {
    color: #484c4e;
}

.post-preview-footer {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    min-height: 22px;
    padding-left: 20px;
    padding-right: 20px;
}

.post-preview-footer .like {
    display: flex;
    flex-direction: row;
    align-items: center;
}

.post-preview-footer .like button {
    margin: 0;
    border: 0;
    height: 100%;
    background-color: transparent;
    font-size: 0;
}

.post-preview-footer .like img {
    height: 16px;
}

.more {
    display: flex;
    flex-basis: 100%;
    justify-content: center;
    align-items: center;
    min-height: 120px;
}

.more button {
    border: none;
    border-radius: 10px;
    padding: 12px;
    color: #fff;
    background-color: #000;
}

.more button:hover {
    color: #000;
    background-color: gray;
}

.scrollup {
    display: none;
    width: 55px;
    height: 55px;
    position: fixed;
    right: 50px;
    bottom: 50px;
    font-size: 0;
    background: url(../img/scrollup_shuriken_fin.png) no-repeat center;
    border-radius: 100%;
}

/* footer */

footer {
    align-items: center;
    min-height: 60px;
    font-size: 0.79em;
}

footer a {
    display: block;
    padding: 12px;
    text-decoration: none;
    color: #000;
}

footer .social {
    display: flex;
    flex-wrap: wrap;
}

/* media */

@media all and (max-width: 960px) {
    /* header */
    header {
        flex-direction: column;
        padding-bottom: 8px;
    }

    .logo {
        text-align: center;
    }

    .change-lang {
        justify-content: center;
    }

    .navigation {
        justify-content: space-around;
    }

    .header-bottom {
        display: none;
    }
    .post-preview {
        flex-basis: calc(50% - 4px);
    }
    .scrollup {
        right: 25px;
        bottom: 25px;
    }

}

@media all and (max-width: 600px) {
    /* header */
    .navigation {
        flex-direction: column;
    }

    .navigation a {
        text-align: center;
        border-top: 1px solid #fff;
        border-bottom: 1px solid #fff;
    }

    .navigation a:hover {
        border-radius: 0;
    }

    .navigation li:last-child a {
        border-bottom: none;
    }
    main {
        flex-direction: column;
        flex-wrap: nowrap;
    }
    .post-preview {
        flex-basis: 100%;
    }
}

@media all and (max-width: 300px) {
    /* main */
    .post-preview-header img {
        display: none;
    }
    .scrollup {
        right: 15px;
        bottom: 15px;
    }
}