@charset "UTF-8";
/* ==========================================================================
   雑司ヶ谷トレカ研究所 スタイルシート
   ベース：キングブラク統合スタイルシート（レイアウト・サイドメニュー・本文の構造を継承）
   変更点：配色をカード卓（紺×金）に変更／画像依存の旧パーツを廃止しCSS描画に置換／
           カード系の部品（レアリティ表記・記事カード・計算ツール）を追加
   ========================================================================== */

/* ---------- 1. 変数 ---------- */
:root {
  --c-text: #2b2f36;
  --c-muted: #667085;
  --c-bg: #f3f1ec;
  --c-surface: #fff;
  --c-border: #d4d0c6;
  --c-border-light: #e8e5de;
  --c-link: #1f5fa8;
  --c-link-hover: #c0392b;
  --c-accent: #b8892c;          /* 箔押しの金 */
  --c-accent-soft: #f6ecd4;
  --c-dark: #1e2a44;            /* プレイマットの紺 */
  --c-dark-2: #2c3b5e;
  --c-red: #c0392b;
  --radius: 8px;
  --gap: 1.5rem;
  --max-width: 1080px;
  --side-width: 230px;
  --font-base: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", Meiryo, sans-serif;
  --font-head: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", "Yu Gothic", sans-serif;
}

/* ---------- 2. リセット・ベース ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--c-text);
  background: var(--c-bg);
  font-family: var(--font-base);
  font-size: 1rem;
  line-height: 1.85;
}
h1, h2, h3, h4, h5, h6, p, ul, ol, dl, figure { margin: 0; }
img { max-width: 100%; height: auto; vertical-align: middle; border: 0; }
a { color: var(--c-link); }
a:hover, a:focus-visible { color: var(--c-link-hover); }
:focus-visible { outline: 2px solid var(--c-accent); outline-offset: 2px; }
strong { font-weight: bold; }
em { font-style: normal; background: linear-gradient(transparent 62%, #f3dd9b 62%); }
hr { border: 0; border-top: 1px solid var(--c-border); margin: 2rem 0; }
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 700; line-height: 1.45; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}
.skip-link {
  position: absolute; left: 1rem; top: -3rem; z-index: 100;
  background: var(--c-dark); color: #fff; padding: .5rem 1rem; border-radius: var(--radius);
}
.skip-link:focus { top: 1rem; color: #fff; }

/* ---------- 3. レイアウト ---------- */
.inner { max-width: var(--max-width); margin: 0 auto; padding: 0 1rem; }

.layout {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--gap) 1rem;
  display: grid;
  grid-template-columns: var(--side-width) minmax(0, 1fr);
  grid-template-areas: "side main";
  gap: var(--gap);
}
.main { grid-area: main; min-width: 0; }
.side { grid-area: side; min-width: 0; }

@media (max-width: 768px) {
  .layout {
    grid-template-columns: 1fr;
    grid-template-areas: "main" "side";
  }
}

/* ---------- 4. ヘッダー ---------- */
.site-header {
  background: var(--c-dark);
  background-image: linear-gradient(135deg, var(--c-dark) 0%, var(--c-dark-2) 100%);
  border-bottom: 3px solid var(--c-accent);
  color: #fff;
}
.site-header .inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: .9rem; }
.site-brand { display: flex; align-items: center; gap: .75rem; }
.site-brand__mark { flex: none; width: 34px; height: 46px; }
.site-brand__text { display: flex; flex-direction: column; }
.site-brand__en { font-size: .7rem; color: #c9cfdc; letter-spacing: .15em; text-transform: uppercase; }
.site-brand__name { font-family: var(--font-head); font-size: 1.5rem; font-weight: 700; line-height: 1.3; }
.site-brand__name a { color: #fff; text-decoration: none; }
.site-brand__name a:hover { color: #f3dd9b; }
.site-brand__lead { font-size: .78rem; color: #c9cfdc; }

.nav-toggle {
  display: none;
  background: var(--c-accent); color: #fff; border: 0; border-radius: var(--radius);
  padding: .5rem .9rem; font-size: .9rem; cursor: pointer; white-space: nowrap; flex: none;
}
@media (max-width: 768px) {
  .nav-toggle { display: inline-block; }
  .site-brand__name { font-size: 1.15rem; }
  .site-brand__lead { display: none; }
  .site-brand__en { font-size: .62rem; letter-spacing: .08em; }
}

/* ---------- 5. サイドメニュー ---------- */
.side-nav__group {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 1rem;
}
.side-nav__title {
  margin: 0; padding: .5rem 1rem;
  background: var(--c-dark); color: #fff; font-size: .9rem;
}
.side-nav ul { list-style: none; margin: 0; padding: 0; }
.side-nav li { border-bottom: 1px solid var(--c-border-light); }
.side-nav li:last-child { border-bottom: 0; }
.side-nav li > a, .side-nav li > span {
  display: block; padding: .55rem 1rem .55rem 1.6rem; position: relative;
  font-size: .85rem; line-height: 1.5; color: #3d4350; text-decoration: none;
}
.side-nav li > a::before {
  content: ""; position: absolute; left: .8rem; top: 50%;
  width: 5px; height: 5px; margin-top: -3px;
  border-top: 2px solid var(--c-accent); border-right: 2px solid var(--c-accent);
  transform: rotate(45deg);
}
.side-nav li > span { color: var(--c-muted); }
.side-nav li > a:hover, .side-nav li > a[aria-current="page"] {
  background: var(--c-accent-soft); color: var(--c-link-hover);
}
.side-nav li > a[aria-current="page"] { font-weight: bold; }
.side-nav__quick {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius); overflow: hidden; margin-bottom: 1rem !important;
}
.side-nav__group > summary { list-style: none; cursor: pointer; display: flex; align-items: center; gap: .5rem; }
.side-nav__group > summary::-webkit-details-marker { display: none; }
.side-nav__group > summary::after {
  content: ""; margin-left: auto; width: 6px; height: 6px;
  border-right: 2px solid #fff; border-bottom: 2px solid #fff;
  transform: rotate(45deg); transition: transform .2s;
}
.side-nav__group[open] > summary::after { transform: rotate(-135deg); }
.side-nav__count {
  font-size: .7rem; font-weight: normal; background: rgba(255,255,255,.2);
  border-radius: 999px; padding: 0 .5em; line-height: 1.6;
}
@media (max-width: 768px) {
  .js .side-nav[data-collapsed="true"] { display: none; }
}

/* ---------- 6. フッター ---------- */
.site-footer { background: #151d31; color: #b9c0cf; font-size: .85rem; text-align: center; }
.footer-links { background: #e6e2d8; padding: .6rem 1rem; }
.footer-links ul { list-style: none; margin: 0; padding: 0; display: flex; justify-content: center; flex-wrap: wrap; gap: .25rem 1.25rem; }
.footer-links a { color: var(--c-muted); }
.copyright { padding: 1.25rem 1rem; }
.copyright a { color: #fff; text-decoration: none; }

/* ---------- 7. パンくず ---------- */
.breadcrumb { font-size: .8rem; margin-bottom: .75rem; }
.breadcrumb ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .25rem; }
.breadcrumb li + li::before { content: "›"; margin-right: .25rem; color: var(--c-muted); }
.breadcrumb [aria-current] { color: var(--c-muted); }
.article .breadcrumb ol { padding: 0; }
.article .breadcrumb li + li { margin-top: 0; }

/* ---------- 8. 本文 ---------- */
.article {
  background: var(--c-surface);
  border-radius: var(--radius);
  padding: 1.5rem clamp(1rem, 3vw, 2rem) 2rem;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
.article > * + *, .article section > * + * { margin-top: 1em; }
.article h1 {
  font-size: 1.6rem; color: var(--c-dark);
  padding-bottom: .5rem; border-bottom: 3px solid var(--c-accent);
}
.article h2 {
  margin-top: 2.5rem; font-size: 1.25rem; color: #fff;
  background: var(--c-dark); padding: .5rem 1rem; border-radius: 4px;
  border-left: 6px solid var(--c-accent);
}
.article h2 a { color: #fff; }
.article h2 a:hover { color: #f3dd9b; }
.article h3 {
  margin-top: 2rem; font-size: 1.1rem;
  padding: .3rem 0 .3rem .75rem; border-left: 4px solid var(--c-accent);
}
.article h4 { margin-top: 1.5rem; font-size: 1.02rem; color: #8a6418; }
.article ul, .article ol { padding-left: 1.5em; }
.article li + li { margin-top: .25em; }
.article .link-list { list-style: none; padding: 0; }
.article .link-list li { padding: .2rem 0 .2rem 1.1rem; position: relative; margin: 0; }
.article .link-list li::before { content: "›"; position: absolute; left: .2rem; color: var(--c-accent); font-weight: bold; }
.article-meta { font-size: .8rem; color: var(--c-muted); }
.lead { font-size: 1.02rem; }
.text-red { color: var(--c-red); }
.text-small { font-size: .85rem; }
.figure-center { text-align: center; }

/* 記事の要点ボックス */
.summary {
  border: 2px solid var(--c-accent); border-radius: var(--radius);
  background: #fffbf1; padding: .9rem 1.2rem 1rem;
}
.summary__title { font-weight: bold; color: #8a6418; font-size: .95rem; }
.summary ul { margin-top: .4rem; }

/* ---------- 9. 注意ボックス（アイコンはCSS描画） ---------- */
.alert, .accept, .attention, .thint {
  position: relative; display: flow-root; margin: 1rem 0; padding: .8rem 1rem .8rem 3rem;
  font-size: .9rem; line-height: 1.65; border-radius: var(--radius);
}
.alert::before, .accept::before, .attention::before, .thint::before {
  position: absolute; left: .9rem; top: .85rem;
  width: 1.4rem; height: 1.4rem; border-radius: 50%;
  display: grid; place-items: center; font-weight: bold; font-size: .85rem; color: #fff;
}
.alert     { background: #fff0ee; color: #8c2f22; border: 1px solid #f2b8ad; }
.alert::before { content: "!"; background: #c0392b; }
.accept    { background: #effada; color: #2f6513; border: 1px solid #c2e39b; }
.accept::before { content: "✓"; background: #4f8f23; }
.attention { background: #fff8db; color: #7a4a00; border: 1px solid #f1d27a; }
.attention::before { content: "!"; background: #d18b00; }
.thint     { background: #eef4fb; color: #24466e; border: 1px solid #c5d7ed; }
.thint::before { content: "i"; background: #2f6cb3; font-family: Georgia, serif; }

/* 引用・会話 */
blockquote {
  margin: 1rem 0; padding: .75rem 1rem; font-size: .9rem; color: var(--c-muted);
  border-left: 4px solid var(--c-border); background: #faf9f6;
}
.voice {
  display: flow-root; margin: 1rem 0; padding: .8rem 1rem; font-size: .92rem;
  background: #f4f6fa; border: 1px solid #d6dce8; border-radius: var(--radius);
}
.voice__who { display: block; font-size: .75rem; font-weight: bold; color: var(--c-dark-2); letter-spacing: .05em; }

/* ---------- 10. 表 ---------- */
.table-wrap { overflow-x: auto; margin: 1rem 0; }
.table-wrap table { margin: 0; }
table { width: 100%; margin: 1rem 0; font-size: .88rem; border-collapse: collapse; }
th, td { padding: .55rem .7rem; border: 1px solid var(--c-border); vertical-align: top; text-align: left; }
th { background: #eeeae0; white-space: nowrap; }
td { background: #fff; }
td.num, th.num { text-align: right; white-space: nowrap; }
caption { caption-side: bottom; font-size: .78rem; color: var(--c-muted); text-align: left; padding-top: .35rem; }

/* レアリティ表記 */
.rar {
  display: inline-block; min-width: 2.6em; padding: 0 .45em; border-radius: 4px;
  font-size: .78rem; font-weight: bold; line-height: 1.7; text-align: center;
  color: #fff; background: #7b8496; font-family: Arial, sans-serif; letter-spacing: .02em;
}
.rar--c   { background: #8a8f99; }
.rar--r   { background: #2f6cb3; }
.rar--rr  { background: #6c48b0; }
.rar--sr  { background: #b03d6e; }
.rar--sp  { background: linear-gradient(135deg, #b8892c, #e9cc7a, #b8892c); color: #3b2a06; }
.rar--sec { background: linear-gradient(135deg, #1e2a44, #5a6b94, #1e2a44); }

/* FAQ（画像をやめCSS描画） */
.faq { margin: 1rem 0; }
.faq dt, .faq dd { position: relative; padding-left: 2.2rem; }
.faq dt { font-weight: bold; margin-top: 1.2rem; }
.faq dd { margin: .35rem 0 0; padding-bottom: .9rem; border-bottom: 1px dotted var(--c-border); font-size: .92rem; }
.faq dt::before, .faq dd::before {
  position: absolute; left: 0; top: .1rem; width: 1.5rem; height: 1.5rem; border-radius: 4px;
  display: grid; place-items: center; font-size: .8rem; font-weight: bold; color: #fff; font-family: Arial, sans-serif;
}
.faq dt::before { content: "Q"; background: var(--c-dark); }
.faq dd::before { content: "A"; background: var(--c-accent); }

/* ---------- 11. トップページ ---------- */
.hero {
  display: grid; grid-template-columns: auto 1fr; gap: 1.25rem; align-items: center;
  padding: 1.25rem; border-radius: var(--radius);
  background: linear-gradient(135deg, #fffaf0 0%, #f3ead5 100%); border: 1px solid #eadcb8;
}
.hero img { width: 92px; }
.hero p { font-size: .95rem; }
@media (max-width: 520px) { .hero { grid-template-columns: 1fr; } .hero img { width: 72px; } }

.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1rem; }
.cat-card {
  border: 1px solid var(--c-border); border-radius: var(--radius); background: #fff; overflow: hidden;
  display: flex; flex-direction: column;
}
.cat-card__head {
  padding: .6rem .9rem; background: var(--c-dark); color: #fff; font-weight: bold; font-size: .95rem;
  border-bottom: 3px solid var(--c-accent);
}
.cat-card__head a { color: #fff; text-decoration: none; }
.cat-card__desc { padding: .6rem .9rem 0; font-size: .82rem; color: var(--c-muted); line-height: 1.6; }
.cat-card ul { list-style: none; margin: .4rem 0 .7rem; padding: 0 .9rem; font-size: .88rem; }
.cat-card li { padding: .18rem 0 .18rem 1rem; position: relative; line-height: 1.55; margin: 0 !important; }
.cat-card li::before { content: "›"; position: absolute; left: .1rem; color: var(--c-accent); font-weight: bold; }
.article .cat-grid { margin-top: 1rem; }
.article .cat-card__head { margin: 0; border-radius: 0; border-left: 0; font-size: .95rem; padding: .6rem .9rem; }
.article .cat-card > * + * { margin-top: 0; }

/* カテゴリ一覧ページの記事リスト */
.entry-list { list-style: none; padding: 0 !important; }
.entry-list li { border-bottom: 1px solid var(--c-border-light); padding: .7rem 0; margin: 0 !important; }
.entry-list a { font-weight: bold; }
.entry-list p { font-size: .85rem; color: var(--c-muted); margin-top: .15rem; }

/* ---------- 12. 計算ツール ---------- */
.calc { border: 1px solid var(--c-border); border-radius: var(--radius); padding: 1rem; background: #fbfaf7; }
.calc__row { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: .75rem; }
.calc label { display: block; font-size: .82rem; font-weight: bold; color: var(--c-dark-2); }
.calc input[type="number"] {
  width: 100%; margin-top: .2rem; padding: .45rem .55rem; font-size: 1rem;
  border: 1px solid var(--c-border); border-radius: 6px; background: #fff; font-family: inherit;
}
.calc table input[type="number"] { margin: 0; padding: .3rem .4rem; font-size: .9rem; min-width: 5.5em; }
.calc__result { margin-top: 1rem; padding: .8rem 1rem; background: #fff; border: 2px solid var(--c-accent); border-radius: var(--radius); }
.calc__big { font-size: 1.35rem; font-weight: bold; color: var(--c-dark); }
.calc .neg { color: var(--c-red); font-weight: bold; }
.calc .pos { color: #2f7a1f; font-weight: bold; }
.btn {
  display: inline-block; margin-top: .75rem; padding: .45rem 1rem; border: 0; border-radius: 6px;
  background: var(--c-dark); color: #fff; font-size: .88rem; cursor: pointer; font-family: inherit;
}
.btn:hover { background: var(--c-dark-2); }

/* 関連ページ */
.article .related { margin-top: 2.5rem; padding: 1rem 1.25rem; background: var(--c-bg); border-radius: var(--radius); }
.article .related h2 { margin: 0 0 .5rem; padding: 0; background: none; color: var(--c-text); border: 0; font-size: 1rem; }

/* ---------- 13. 印刷 ---------- */
@media print {
  .side, .nav-toggle, .skip-link { display: none !important; }
  .layout { display: block; }
  body { background: #fff; }
}

/* 用語集（FAQのQ/Aアイコンなし） */
.faq.glossary dt, .faq.glossary dd { padding-left: 0; }
.faq.glossary dt::before, .faq.glossary dd::before { content: none; }
.faq.glossary dt { padding-left: .6rem; border-left: 4px solid var(--c-accent); line-height: 1.5; }
.faq.glossary dd { padding-left: .9rem; }

/* アイキャッチ画像 */
.eyecatch { margin: 1rem 0 0; }
.eyecatch img { display: block; width: 100%; height: auto; border-radius: var(--radius); background: #f3f1ec; }

/* 外部パーツの置き場所 */
.side-search {
  background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius);
  padding: .4rem .75rem .5rem; margin-bottom: 1rem;
}
.part-timeline:not(:empty) { margin-top: 2rem; }
.pickup:not(:empty) { margin: 2rem 0; }