/* 基本設定とフォント */
body {
    font-family: "游明朝", "Yu Mincho", "ヒラギノ明朝 ProN W3", "Hiragino Mincho ProN", "HG明朝E", "ＭＳ Ｐ明朝", "MS PMincho", serif;
    background-color: #fdfdfd;
    color: #333;
    font-size: 1.7em;
    font-weight: 500;
    margin: 0;
    padding: 0;
    line-height: 1.8;
    letter-spacing: 0.05em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.content {
    padding: 0 20px 0 20px;
}
.container {
    max-width: 850px;
    margin: 0 auto;
    padding: 0 20px 20px 20px;
}

/* 段落と見出し */
p {
    margin-bottom: 1em;
/*    text-indent: 1em;*/
    text-align: justify;
}
p.subtitle, p.footnote, .info-title, .author-details p, .epilogue-section p {
    text-indent: 0;
}

h1, h2, h3 {
    font-family: "游明朝", "Yu Mincho", "ヒラギノ明朝 ProN W3", "Hiragino Mincho ProN", "HG明朝E", "ＭＳ Ｐ明朝", "MS PMincho", serif;
    font-weight: 700;
    text-indent: 0;
}

.br_parag{
    margin-top: 0;
/*    text-indent: 1em;*/
}
.wide-parag{
    margin-top: 3.5em;
}

.margin-poem{
    margin-top: -0.5em;
    text-indent: 2em;
}

/* --- 表紙 --- */
.cover-page {
    padding-bottom: 20px;
    margin-bottom: 30px;
    border-bottom: 2px solid #333;
}
.cover-content {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    padding: 0 0 20px 20px;
}
.title-vertical {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    height: 400px;
    white-space: nowrap;
    border-left: 1px solid #ccc;
    padding-left: 20px;
    margin-right: 20px;
    margin-top: 30px;
}
.title-vertical h1 {
    font-size: 3.2em;
    letter-spacing: 0.2em;
    margin: 0;
    padding: 0;
}
.title-vertical .subtitle {
    font-size: 1.6em;
    font-weight: 700;
    margin-top: 1em;
}

.cover-main {
    flex-grow: 1;
    display: flex; /* Flexboxを有効にする */
    flex-direction: column; /* 子要素を縦に並べる */
    width: calc(100vw - 20px);
}
.cover-image {
    width: 100%;
    max-width: 450px;
    height: auto;
    margin-bottom: 20px;
/*    align-self: flex-end;*/ /* 画像を右揃え */
    margin-left: auto;
    margin-right: 0;

}

.author-toc h2 {
    font-size: 1.8em;
    letter-spacing: 0.1em;
    text-align: center;
    margin-top: 40px;
    margin-bottom: 1em;
}
.author-toc h3 {
    font-size: 1.4em;
    margin-bottom: 0.5em;
    border-bottom: 1px solid #ccc;
    padding-bottom: 5px;
}

.toc {
    list-style-type: decimal;
    padding-left: 20px;
}
.toc li {
    margin-bottom: 0.5em;
    font-weight: 700;
    font-size: 1.1em;
}

.footnote {
    font-size: 0.8em;
    color: #555;
    margin-top: 20px;
    border-top: 1px solid #eee;
    padding-top: 10px;
    text-align: left;
}

/* --- 本文エリア --- */
.main-content {
    padding-bottom: 20px;
}

/* --- 章タイトル --- */
.chapter-title-container {
    position: relative;
    text-align: center;
    margin: 60px 0 40px;
    padding: 20px 0;
}
.chapter-title-container::before,
.chapter-title-container::after {
    content: '';
    position: absolute;
    top: 0;
    height: 100%;
    width: 20px;
    border-style: solid;
    border-color: #333;
}
.chapter-title-container::before {
    left: 0;
    border-width: 3px 0 3px 3px;
}
.chapter-title-container::after {
    right: 0;
    border-width: 3px 3px 3px 0;
}

.chapter-title {
    font-size: 2em;
    font-weight: 700;
    display: inline-block;
}
.chapter-title span {
    font-size: 2em;
    font-weight: 700;
    display: block;
    margin-bottom: 10px;
}

.chapter-title .chapter-subtitle {
    font-size: .7em;
    line-height: 1.2em;
    font-weight: normal;
    display: inline-block;
    margin-top: .5em;
}

/* --- 画像とキャプション --- */
figure {
    margin: 20px 0;
    text-align: center;
    page-break-inside: avoid;
}
figure img {
    max-width: 90%;
    height: auto;
    border: 1px solid #ddd;
}
figcaption {
    font-size: 0.8em;
    line-height: 1.4em;
    color: #555;
/*    margin-top: 0px;*/
    text-align: center;
}

.float-left {
    float: left;
    margin-right: 20px;
    margin-bottom: 10px;
    max-width: 40%;
}
.float-right {
    float: right;
    margin-left: 20px;
    margin-bottom: 10px;
    max-width: 40%;
}
.image-small {
    max-width: 250px;
}
/* Clearfix for floated elements */
.main-content::after {
    content: "";
    display: table;
    clear: both;
}


/* --- エピローグと著者情報セクション --- */
.epilogue-section, .author-section {
    padding-top: 20px;
    margin-top: 20px;
}
.author-info {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background-color: #f5f5f5;
    border-radius: 5px;
}
.author-info figure {
    margin: 0;
    flex-shrink: 0;
}
.author-info img {
    width: 170px;
    height: auto;
/*    border-radius: 50%;*/
}
.author-details .info-title {
    font-weight: bold;
    font-size: 1.1em;
    margin-bottom: 10px;
}
.author-details p {
    text-indent: 0;
    margin-bottom: 0.5em;
}
.author-details ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.author-details li {
    font-size: 0.9em;
    text-indent: -1em;
    padding-left: 1em;
}

.wide-break {
  display: inline-block; /* インラインで調整 */
/*  margin-bottom: 1.5em;*/ /* より広い行間 */
  content: ''; /* 空のコンテンツ */
}

/* --- レスポンシブ対応 --- */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    p {
        text-align: left;
    }
    
    .cover-content {
        flex-direction: column;
        padding-left: 0;
        padding-right: 0;
    }
    .title-vertical {
        writing-mode: horizontal-tb;
        height: auto;
        border-left: none;
        border-bottom: 2px solid #333;
        padding-left: 0;
        padding-bottom: 15px;
        margin-right: 0;
        margin-bottom: 0px;
        text-align: center;
        width: 100%;
    }
    .title-vertical h1 {
        font-size: 2.2em;
    }
    .title-vertical .subtitle {
        font-size: 1.4em;
        margin-top: 0.5em;
    }

    .chapter-title {
        font-size: 1.8em;
    }

    .chapter-title .chapter-subtitle {
        font-size: .7em;
    }

    .float-left {
        float: none;
        max-width: 80%;
        margin: auto 20px;
        display: block;
    }
    .float-right {
        float: none;
        max-width: 80%;
        margin: 20px auto;
        display: block;
    }

    .author-info {
        flex-direction: column;
        align-items: flex-start; /* 子要素を左揃えにする */
/*        text-align: center;*/
    }

    .figure .img {
    max-width: 100%;
    height: auto;
    border: 1px solid #ddd;
    }

    .img-left{
        align-self: flex-start;
        margin: 0 20px 10px 0; /* 画像の右と下にマージンを追加 */
        text-align: left; /* 画像のコンテナ内のテキスト寄せを左に設定 */
    }
    .content {
        padding: 0 10px 0 10px;
    }

}