/* 中学受験 過去問ノート — 補足ガイド記事の共通スタイル(朱筆と紙)
   React本体のビルド成果物(dist配下のバンドルCSS)は読み込まない。素のCSSのみ。
   トークンは src/index.css のブランド定義(--color-brand / --color-shu / --color-paper 等)に合わせている。 */

* {
  box-sizing: border-box;
}

:root {
  color-scheme: light;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: #f4f1ea; /* 紙の地 */
  color: #211e1a; /* 墨 */
  font-family:
    -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", "Segoe UI", sans-serif;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

header.site {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid #e4ded2;
  background: rgba(244, 241, 234, 0.85);
  position: sticky;
  top: 0;
  backdrop-filter: blur(6px);
}

header.site a {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: inherit;
}

.seal {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  flex: none;
  border-radius: 4px;
  background: #b23b2e; /* 朱 */
  color: #fff;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", YuMincho, "Noto Serif JP", serif;
  font-weight: 600;
  font-size: 17px;
}

.site-title {
  font-family: "Hiragino Mincho ProN", "Yu Mincho", YuMincho, "Noto Serif JP", serif;
  font-weight: 600;
  font-size: 15px;
  color: #211e1a;
}

main.wrap {
  max-width: 40rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

.lede {
  margin: 0 0 1.25rem;
  font-size: 13px;
  color: rgba(33, 30, 26, 0.6);
}

.lede a {
  color: #22324e;
}

h1 {
  font-family: "Hiragino Mincho ProN", "Yu Mincho", YuMincho, "Noto Serif JP", serif;
  font-weight: 600;
  font-size: 1.55rem;
  line-height: 1.5;
  margin: 0 0 0.75rem;
  padding-left: 0.7rem;
  border-left: 4px solid #b23b2e;
  color: #211e1a;
}

h2 {
  font-family: "Hiragino Mincho ProN", "Yu Mincho", YuMincho, "Noto Serif JP", serif;
  font-weight: 600;
  font-size: 1.15rem;
  margin: 2rem 0 0.6rem;
  color: #22324e;
}

p,
li {
  font-size: 15.5px;
  color: #211e1a;
}

ul,
ol {
  padding-left: 1.4rem;
}

li + li {
  margin-top: 0.35rem;
}

a {
  color: #22324e;
}

strong {
  color: #211e1a;
}

.cta {
  display: block;
  margin-top: 2.5rem;
  padding: 1rem 1.15rem;
  background: #fffdf8; /* 生成りの白カード */
  border: 1px solid #e4ded2;
  border-radius: 10px;
  text-decoration: none;
}

.cta strong {
  display: block;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", YuMincho, "Noto Serif JP", serif;
  color: #22324e;
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.cta span {
  font-size: 13.5px;
  color: rgba(33, 30, 26, 0.7);
}

.related {
  margin-top: 2rem;
  padding-top: 1.1rem;
  border-top: 1px solid #e4ded2;
  font-size: 13.5px;
}

.related p {
  margin: 0 0 0.5rem;
  font-size: 13px;
  color: rgba(33, 30, 26, 0.6);
}

.related a {
  display: inline-block;
  margin: 0 1rem 0.5rem 0;
}

footer.site {
  max-width: 40rem;
  margin: 0 auto;
  padding: 0 1.25rem 2.5rem;
  font-size: 12px;
  line-height: 1.7;
  color: rgba(33, 30, 26, 0.5);
  text-align: center;
}

footer.site a {
  color: rgba(33, 30, 26, 0.6);
}