/*
Theme Name: Siiize
Theme URI: https://siiize.com/
Author: いろんなサイズ調べ編集チーム
Description: いろんなサイズ調べのテーマ。装飾を省いた学術書のような体裁で、サイズの表を読みやすく見せる。記事冒頭の早見表を強調し、表の寸法から大きさくらべの図を自動で描く。
Version: 1.0.3
Requires at least: 6.5
Tested up to: 7.1
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: siiize
*/

/* ==========================================================
   0. TOKENS
   色はインク(黒・灰)と、リンク・強調用の紺の1色だけ。
   ========================================================== */
:root {
  --paper:   #FFFFFF;
  --tint:    #F5F6F7;   /* 早見表・図の地 */
  --ink:     #1B1C1E;
  --ink-2:   #5B5F66;   /* 補助の文字(日付・注記) */
  --rule:    #D8DADD;   /* 細い罫線 */
  --rule-2:  #1B1C1E;   /* 表の上下の太罫 */
  --accent:  #1E4A7A;   /* 紺。リンク・早見表の印・図の線 */

  --serif: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Noto Serif JP", serif;
  --sans:  "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic", "Noto Sans JP", "Meiryo", sans-serif;

  --measure: 760px;     /* 本文の幅 */
  --gutter:  clamp(16px, 4vw, 32px);
}

/* ==========================================================
   1. BASE
   ========================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.9;
  font-feature-settings: "palt";
}
img, iframe, video, embed { max-width: 100%; height: auto; }
a { color: var(--accent); text-underline-offset: .2em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.wrap { max-width: calc(var(--measure) + var(--gutter) * 2); margin: 0 auto; padding: 0 var(--gutter); }
.num  { font-variant-numeric: tabular-nums; }
.screen-reader-text {
  position: absolute; clip: rect(1px, 1px, 1px, 1px);
  width: 1px; height: 1px; overflow: hidden;
}

/* ==========================================================
   2. HEADER
   ========================================================== */
.site-head { border-bottom: 1px solid var(--rule); }
.site-head .wrap {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 24px;
  flex-wrap: wrap;
  padding-top: 22px;
  padding-bottom: 18px;
}
.site-title {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(20px, 3.4vw, 24px);
  font-weight: 600;
  letter-spacing: .04em;
  line-height: 1.3;
}
.site-title a { color: var(--ink); text-decoration: none; }
.site-desc { margin: 2px 0 0; font-size: 12px; color: var(--ink-2); letter-spacing: .04em; }

.site-nav ul { display: flex; flex-wrap: wrap; gap: 4px 18px; margin: 0; padding: 0; list-style: none; font-size: 14px; }
.site-nav a { color: var(--ink); text-decoration: none; }
.site-nav a:hover, .site-nav .current-menu-item > a { color: var(--accent); text-decoration: underline; }

/* ==========================================================
   3. INDEX ─ 記事の一覧(トップ・分類・検索)
   ========================================================== */
.index-head { padding: 40px 0 8px; }
.index-title {
  margin: 0;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: .04em;
}
.index-desc { margin: 6px 0 0; color: var(--ink-2); font-size: 14px; }
.index-count { margin: 4px 0 0; color: var(--ink-2); font-size: 13px; }

.entries { margin: 16px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--rule-2); }
.entry-item {
  display: grid;
  grid-template-columns: 4.5em 1fr;
  gap: 0 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
}
.entry-no { padding-top: 3px; font-size: 13px; color: var(--ink-2); }
.entry-item h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
}
.entry-item h2 a { color: var(--ink); text-decoration: none; }
.entry-item h2 a:hover { color: var(--accent); text-decoration: underline; }
.entry-ex { margin: 6px 0 0; font-size: 14px; line-height: 1.75; color: var(--ink-2); }
.entry-meta { margin: 6px 0 0; font-size: 12px; color: var(--ink-2); }
.entry-meta a { color: var(--ink-2); }

.pager { margin: 32px 0 0; }
.pager .nav-links { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; font-size: 14px; }
.pager .page-numbers { min-width: 2.2em; padding: 2px 8px; text-align: center; border: 1px solid var(--rule); text-decoration: none; }
.pager .page-numbers.current { border-color: var(--ink); color: var(--ink); }

.notfound { padding: 56px 0; }
.notfound p { margin: 0 0 16px; }

.searchform { display: flex; gap: 8px; max-width: 420px; }
.searchform input[type="search"] {
  flex: 1;
  min-width: 0;
  padding: 6px 10px;
  border: 1px solid var(--rule);
  border-radius: 0;
  font: inherit;
  font-size: 14px;
}
.searchform button {
  padding: 6px 14px;
  border: 1px solid var(--ink);
  border-radius: 0;
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
}

/* ==========================================================
   4. ARTICLE ─ 記事ページ
   ========================================================== */
.article-head { padding: 40px 0 20px; border-bottom: 1px solid var(--rule); }
.article-cat { margin: 0 0 6px; font-size: 13px; color: var(--ink-2); }
.article-cat a { color: var(--ink-2); }
.article-title {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(24px, 4.6vw, 32px);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: .02em;
}
.article-meta { margin: 12px 0 0; font-size: 13px; color: var(--ink-2); }
.article-meta span + span::before { content: "・"; margin: 0 .3em; }

/* 本文 */
.article-body { padding: 8px 0 24px; overflow-wrap: anywhere; }
.article-body > * { margin-top: 0; margin-bottom: 1.4em; }
.article-body h2 {
  margin: 2.6em 0 .9em;
  padding-bottom: .35em;
  border-bottom: 1px solid var(--rule-2);
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.5;
}
.article-body h3 {
  margin: 2em 0 .7em;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
}
.article-body h4 { margin: 1.6em 0 .5em; font-size: 16px; }
.article-body ul, .article-body ol { padding-left: 1.5em; }
.article-body li + li { margin-top: .3em; }
.article-body blockquote {
  margin-left: 0;
  padding: 2px 0 2px 1em;
  border-left: 2px solid var(--rule);
  color: var(--ink-2);
}
.article-body hr { border: 0; border-top: 1px solid var(--rule); margin: 2.4em 0; }
.article-body figcaption, .article-body .wp-element-caption {
  margin-top: 6px;
  font-size: 13px;
  color: var(--ink-2);
}
.article-body details { margin: 0; padding: 10px 0; border-top: 1px solid var(--rule); }
.article-body details:last-of-type { margin-bottom: 1.4em; border-bottom: 1px solid var(--rule); }
.article-body details > :last-child { margin-bottom: 0; }
.article-body summary { cursor: pointer; font-weight: 600; }

/* 表 ─ 縦罫なし、上下に太罫(学術書の体裁) */
.article-body figure.wp-block-table { margin-left: 0; margin-right: 0; overflow-x: auto; }
.article-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  line-height: 1.6;
  font-variant-numeric: tabular-nums;
  border-top: 1.5px solid var(--rule-2);
  border-bottom: 1.5px solid var(--rule-2);
}
.article-body th, .article-body td {
  padding: 8px 12px 8px 0;
  border: 0;
  border-bottom: 1px solid var(--rule);
  text-align: left;
  vertical-align: top;
}
.article-body th:last-child, .article-body td:last-child { padding-right: 0; }
.article-body thead th, .article-body tr:first-child th {
  border-bottom: 1px solid var(--rule-2);
  font-weight: 600;
}
.article-body tbody tr:last-child td, .article-body tbody tr:last-child th { border-bottom: 0; }
.article-body caption { caption-side: top; padding-bottom: 6px; text-align: left; font-size: 13px; color: var(--ink-2); }

/* 早見表 ─ 見出しと表をひとつの枠として見せる(functions.php が class を付ける) */
.article-body .is-quick-head {
  margin-bottom: 0;
  padding: 12px 16px 10px;
  border: 1px solid var(--accent);
  border-bottom: 0;
  background: var(--tint);
  font-size: 18px;
}
.article-body .is-quick-head::before {
  content: "早見表";
  display: block;
  margin-bottom: 2px;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .2em;
  color: var(--accent);
}
.article-body .is-quick-head + * { margin-top: 0; }
.article-body .is-quick {
  padding: 4px 16px 12px;
  border: 1px solid var(--accent);
  border-top: 0;
  background: var(--tint);
}
.article-body table.is-quick,
.article-body .is-quick table { border-top: 1.5px solid var(--rule-2); }
.article-body table.is-quick { padding: 0; border: 1px solid var(--accent); border-top: 0; }
.article-body table.is-quick th:first-child,
.article-body table.is-quick td:first-child { padding-left: 16px; }
.article-body table.is-quick th:last-child,
.article-body table.is-quick td:last-child { padding-right: 16px; }
.article-body .is-quick table { background: transparent; }
.article-body .is-quick td, .article-body .is-quick th { font-size: 15px; }

/* 大きさくらべの図(assets/figure.js が描く) */
.size-figure { margin: 0 0 1.8em; padding: 16px 16px 10px; background: var(--tint); }
.size-figure svg { display: block; width: 100%; height: auto; }
.size-figure .sf-box { fill: rgba(30, 74, 122, .05); stroke: var(--accent); stroke-width: 1.2; vector-effect: non-scaling-stroke; }
.size-figure .sf-box.is-active { fill: rgba(30, 74, 122, .16); stroke-width: 2.2; }
.size-figure .sf-bar { fill: var(--accent); opacity: .78; }
.size-figure .sf-bar.is-active { opacity: 1; }
.size-figure text { fill: var(--ink); font-family: var(--sans); }
.size-figure .sf-sub { fill: var(--ink-2); }
.size-figure .sf-scale { stroke: var(--ink); stroke-width: 1; vector-effect: non-scaling-stroke; }
.size-figure figcaption { margin-top: 8px; font-size: 13px; color: var(--ink-2); }
.size-figure figcaption b { color: var(--ink); font-weight: 600; margin-right: .6em; }
.article-body tr.sf-row-active td, .article-body tr.sf-row-active th { background: rgba(30, 74, 122, .08); }

.article-foot { padding: 16px 0 0; border-top: 1px solid var(--rule); font-size: 13px; color: var(--ink-2); }
.article-foot a { color: var(--ink-2); }

.adjacent {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 40px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--rule-2);
  font-size: 14px;
  line-height: 1.6;
}
.adjacent a { display: block; color: var(--ink); text-decoration: none; }
.adjacent a:hover { color: var(--accent); }
.adjacent .dir { display: block; font-size: 12px; color: var(--ink-2); }
.adjacent .next { text-align: right; }

/* ==========================================================
   5. FOOTER
   ========================================================== */
.site-foot { margin-top: 72px; border-top: 1px solid var(--rule); font-size: 12px; color: var(--ink-2); }
.site-foot .wrap {
  display: flex;
  justify-content: space-between;
  gap: 8px 24px;
  flex-wrap: wrap;
  padding-top: 20px;
  padding-bottom: 32px;
}
.site-foot p { margin: 0; }
.site-foot a { color: var(--ink-2); }

/* ==========================================================
   6. SMALL SCREENS
   ========================================================== */
@media (max-width: 600px) {
  body { font-size: 15px; }
  .entry-item { grid-template-columns: 1fr; }
  .entry-no { padding-top: 0; }
  .article-body h2 { font-size: 20px; }
  .article-body .is-quick-head { padding: 10px 12px 8px; }
  .article-body .is-quick { padding: 2px 12px 10px; }
  .size-figure { padding: 12px 10px 8px; margin-left: calc(var(--gutter) * -1); margin-right: calc(var(--gutter) * -1); }
  .adjacent { grid-template-columns: 1fr; }
  .adjacent .next { text-align: left; }
}

@media print {
  .site-nav, .searchform, .adjacent, .pager { display: none; }
  .site-foot { margin-top: 24px; }
}