* {
    box-sizing: border-box;
}

html {
    background: #d9d9d9;
}

body {
    margin: 0;
    padding: 20px 10px;
    background: #d9d9d9;
    color: #222;
    font-family: Verdana, Arial, sans-serif;
    font-size: 13px;
}

.page {
    width: 820px;
    max-width: 100%;
    margin: 0 auto;
    background: #f7f7f7;
    border: 1px solid #999;
    box-shadow: 0 1px 5px rgba(0,0,0,.15);
}

header {
    padding: 18px 20px 12px;
    background: #eee;
    border-bottom: 3px solid #58743b;
}

.logo {
    font-family: Georgia, serif;
    font-size: 29px;
    font-weight: bold;
    color: #222;
}

.logo span {
    color: #58743b;
}

.subtitle {
    margin-top: 2px;
    color: #777;
    font-size: 11px;
}

nav {
    margin-top: 13px;
}

a {
    color: #3f6128;
    text-decoration: underline;
}

a:hover {
    color: #111;
}

nav span {
    margin: 0 7px;
    color: #aaa;
}

main {
    padding: 16px 20px 30px;
}

.section-title {
    margin-bottom: 12px;
    padding-bottom: 5px;
    border-bottom: 1px solid #aaa;
    font-size: 17px;
    font-weight: bold;
}

.topic {
    margin: 0 0 14px;
    background: white;
    border: 1px solid #bbb;
}

.topic-head {
    padding: 7px 9px;
    background: #e5e5e5;
    border-bottom: 1px solid #bbb;
    font-weight: bold;
    font-size: 14px;
}

.topic-body {
    padding: 11px 10px 12px;
    line-height: 1.55;
}

.meta {
    padding: 5px 9px;
    background: #f2f2f2;
    border-top: 1px dotted #bbb;
    color: #888;
    font-size: 10px;
}

.author {
    color: #4d662f;
    font-weight: bold;
}

.reply {
    margin: 10px 0 10px 28px;
    background: white;
    border-left: 4px solid #aaa;
    border-top: 1px solid #ccc;
    border-right: 1px solid #ccc;
    border-bottom: 1px solid #ccc;
}

.reply-body {
    padding: 10px;
    line-height: 1.5;
}

.main-topic {
    margin-top: 12px;
}

.back {
    margin-bottom: 8px;
}

.archive-row {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    padding: 8px 5px;
    border-bottom: 1px dotted #aaa;
}

.archive-row span {
    white-space: nowrap;
    color: #999;
    font-size: 10px;
}

.empty,
.no-replies {
    padding: 20px;
    text-align: center;
    color: #888;
}

footer {
    padding: 12px 20px;
    border-top: 1px solid #bbb;
    background: #eee;
    color: #888;
    font-size: 10px;
    text-align: center;
}

@media (max-width: 600px) {
    body {
        padding: 0;
    }

    .page {
        border-left: 0;
        border-right: 0;
    }

    header,
    main {
        padding-left: 12px;
        padding-right: 12px;
    }

    .reply {
        margin-left: 12px;
    }

    .archive-row {
        display: block;
    }

    .archive-row span {
        display: block;
        margin-top: 3px;
    }
}