html {
    font-size: 18px;
}

body {
    margin: 0;
    background: #f7f5ef;
    color: #222;
    font-family:
        "Yu Mincho",
        "YuMincho",
        "Hiragino Mincho ProN",
        "Hiragino Mincho Pro",
        serif;
    line-height: 2;
}


/* =========================
   トップページ全体
   ========================= */

.site {
    width: min(760px, calc(100% - 48px));
    margin: 0 auto;
    padding: 80px 0 120px;
}

.site-header {
    margin-bottom: 80px;
}

.site-title {
    margin: 0;
    font-size: 2rem;
    font-weight: normal;
    letter-spacing: 0.12em;
}

.site-description {
    margin-top: 20px;
    color: #555;
    font-size: 0.95rem;
}

.site-footer {
    margin-top: 96px;
    padding-top: 24px;
    border-top: 1px solid #bbb;
    font-size: 0.8rem;
}

.site-footer a {
    margin-right: 1.5em;
}

/* =========================
   ナビゲーション
   ========================= */

nav {
    margin-top: 28px;
}

nav a {
    margin-right: 1.5em;
}


/* =========================
   共通リンク
   ========================= */

a {
    color: inherit;
    text-decoration-thickness: 1px;
    text-underline-offset: 0.25em;
}


/* =========================
   セクション
   ========================= */

section {
    margin-top: 64px;
}

section h2 {
    margin-bottom: 24px;
    font-size: 1.2rem;
    font-weight: normal;
    letter-spacing: 0.1em;
}


/* =========================
   過去の投稿一覧
   ========================= */

.work-list-header,
.work-list li {
    display: grid;
    grid-template-columns: 1fr 120px 80px;
    gap: 24px;
    align-items: baseline;
}

.work-list-header {
    margin-bottom: 18px;
    padding-bottom: 8px;
    border-bottom: 1px solid #bbb;
    color: #666;
    font-size: 0.8rem;
}

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

.work-list li {
    margin: 14px 0;
}

.work-list-title {
    min-width: 0;
}

.work-date,
.work-category {
    color: #777;
    font-size: 0.8rem;
}


/* =========================
   個別作品ページ
   ========================= */

.work {
    width: min(760px, calc(100% - 48px));
    margin: 0 auto;
    padding: 80px 0 120px;
}

.work-header {
    margin-bottom: 64px;
}

.work-title {
    margin: 0;
    font-size: 1.7rem;
    font-weight: normal;
    line-height: 1.6;
    letter-spacing: 0.08em;
}

.work-body {
    line-height: 2.2;
}

.signature {
    margin-top: 72px;
    text-align: right;
    font-size: 0.85rem;
    letter-spacing: 0.2em;
}

.signature-date {
    margin-top: 4px;
    color: #777;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
}

/* =========================
   作品ページ下部
   ========================= */

.work-footer {
    margin-top: 96px;
    padding-top: 28px;
    border-top: 1px solid #bbb;
    font-size: 0.85rem;

    display: flex;
    align-items: center;
    gap: 20px;
}

.work-footer button {
    padding: 6px 12px;
    border: 1px solid #999;
    background: transparent;
    color: inherit;
    font: inherit;
    cursor: pointer;
}


/* =========================
   スマートフォン
   ========================= */

@media (max-width: 600px) {

    html {
        font-size: 16px;
    }

    .site,
    .work {
        width: calc(100% - 36px);
        padding-top: 48px;
    }

    /*
       スマホでは
       「タイトル / 日付 / カテゴリ」
       の見出しは非表示
    */
    .work-list-header {
        display: none;
    }

    /*
       各作品を

       タイトル
       日付        カテゴリ

       の2段構成にする
    */
    .work-list li {
        grid-template-columns: 1fr auto;
        gap: 2px 16px;
        margin: 22px 0;
    }

    .work-list-title {
        grid-column: 1 / -1;
    }

    .work-category {
        text-align: right;
    }
}