/* =========================================================
   落ち着いた大人向け恋愛メディア — 共通スタイル
   （濃いめのピンク／ローズ系を基調にした「恋愛らしさ」のトーン）
   ========================================================= */

:root {
  --color-bg: #fcedf1;
  --color-bg-alt: #ffffff;
  --color-ink: #2c2226;
  --color-ink-soft: #6b5660;
  --color-border: #f2cdd8;
  --color-accent: #c23764;      /* 濃いめのピンク／ローズ */
  --color-accent-soft: #f9d9e3;
  --color-gold: #cf8a8f;        /* ローズゴールド系アクセント */
  --color-pr: #b12f5c;
  --color-pr-bg: #fbdde6;
  --font-serif: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  --font-sans: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  --max-width: 960px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #24141b;
    --color-bg-alt: #2e1b23;
    --color-ink: #f3e6ea;
    --color-ink-soft: #d0adb8;
    --color-border: #4a2732;
    --color-accent: #ec6f9b;
    --color-accent-soft: #40222c;
    --color-gold: #e0a2a0;
    --color-pr: #f085ac;
    --color-pr-bg: #40222a;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-sans);
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ---------- ヘッダー ---------- */
.site-header {
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 50;
}

.site-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.9rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-logo {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  letter-spacing: 0.04em;
  color: var(--color-ink);
  font-weight: 600;
}

.site-logo span { color: var(--color-accent); }

.site-nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--color-ink-soft);
  font-size: 0.92rem;
}

.site-nav a:hover { color: var(--color-accent); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 0.4rem 0.7rem;
  color: var(--color-ink);
  font-size: 1rem;
}

@media (max-width: 680px) {
  .nav-toggle { display: inline-block; }
  .site-nav {
    display: none;
    flex-direction: column;
    width: 100%;
    padding-top: 0.75rem;
  }
  .site-nav.is-open { display: flex; }
  .site-header__inner { flex-wrap: wrap; }
}

/* ---------- ヒーロー ---------- */
.hero {
  padding: 4rem 0 3rem;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  margin: 0 0 0.75rem;
  letter-spacing: 0.03em;
}

.hero p {
  color: var(--color-ink-soft);
  font-size: 1.02rem;
  max-width: 34rem;
  margin: 0 auto;
}

/* ---------- セクション見出し ---------- */
.section {
  padding: 3rem 0;
}

.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--color-accent-soft);
  padding-bottom: 0.6rem;
}

.section-heading h2 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  margin: 0;
}

.section-heading a {
  font-size: 0.85rem;
  white-space: nowrap;
}

/* ---------- カードグリッド ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.card:hover {
  box-shadow: 0 6px 18px rgba(0,0,0,0.06);
  transform: translateY(-2px);
}

.card__category {
  font-size: 0.75rem;
  color: var(--color-accent);
  font-weight: 600;
  letter-spacing: 0.03em;
}

.card h3 {
  font-size: 1.05rem;
  margin: 0;
  line-height: 1.5;
}

.card h3 a { color: var(--color-ink); }

.card p {
  color: var(--color-ink-soft);
  font-size: 0.9rem;
  margin: 0;
}

/* ---------- カテゴリ一覧 ---------- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.category-tile {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 1.5rem;
}

.category-tile h3 {
  font-family: var(--font-serif);
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.category-tile p {
  color: var(--color-ink-soft);
  font-size: 0.9rem;
  margin: 0 0 0.75rem;
}

/* ---------- 信頼性セクション ---------- */
.trust-box {
  background: var(--color-accent-soft);
  border-radius: 10px;
  padding: 1.5rem 1.75rem;
  font-size: 0.9rem;
  color: var(--color-ink-soft);
}

.trust-box strong { color: var(--color-ink); }

/* ---------- 記事本文 ---------- */
.article {
  padding: 2.5rem 0 4rem;
}

.article__meta {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  margin-bottom: 0.5rem;
}

.article__meta a { color: var(--color-accent); }

.article h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3.4vw, 2rem);
  line-height: 1.5;
  margin: 0.3rem 0 1.75rem;
}

.article h2 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  margin-top: 2.5rem;
  border-left: 4px solid var(--color-accent);
  padding-left: 0.7rem;
}

.article h3 {
  font-size: 1.05rem;
  margin-top: 1.75rem;
}

.article p { margin: 0.9rem 0; }

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

.article li { margin: 0.4rem 0; }

.lede {
  font-size: 1.05rem;
  color: var(--color-ink-soft);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 1.5rem;
  margin-bottom: 0.5rem;
}

/* ---------- PR / 広告表記 ---------- */
.pr-badge {
  display: inline-block;
  background: var(--color-pr);
  color: var(--color-bg-alt);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 0.1rem 0.45rem;
  border-radius: 4px;
  vertical-align: middle;
  margin-left: 0.35rem;
}

.related-box {
  margin-top: 2.5rem;
  background: var(--color-pr-bg);
  border: 1px solid var(--color-gold);
  border-radius: 10px;
  padding: 1.5rem 1.75rem;
}

.related-box h2 {
  border: none;
  padding-left: 0;
  margin-top: 0;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
}

.related-box p { color: var(--color-ink-soft); font-size: 0.92rem; }

.related-link {
  display: inline-block;
  margin-top: 0.5rem;
  font-weight: 600;
  color: var(--color-accent);
  border-bottom: 1px solid currentColor;
}

.age-note {
  font-size: 0.78rem;
  color: var(--color-ink-soft);
  margin-top: 0.75rem;
}

.ad-disclosure {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px dashed var(--color-border);
  font-size: 0.8rem;
  color: var(--color-ink-soft);
}

/* ---------- 注意書きボックス（記事共通） ---------- */
.notice-box {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  margin: 2rem 0;
}

/* ---------- フッター ---------- */
.site-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  margin-top: 3rem;
  font-size: 0.85rem;
  color: var(--color-ink-soft);
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 1.25rem 3rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
}

.site-footer h4 {
  color: var(--color-ink);
  font-size: 0.9rem;
  margin: 0 0 0.75rem;
}

.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin: 0.35rem 0; }

.site-footer__bottom {
  border-top: 1px solid var(--color-border);
  text-align: center;
  padding: 1.25rem;
  font-size: 0.75rem;
}

/* ---------- 年齢確認モーダル ---------- */
.age-gate {
  position: fixed;
  inset: 0;
  background: rgba(36, 20, 27, 0.82);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.age-gate[hidden] { display: none; }

.age-gate__card {
  background: var(--color-bg-alt);
  border-radius: 14px;
  max-width: 26rem;
  padding: 2.25rem 2rem;
  text-align: center;
  box-shadow: 0 20px 50px rgba(0,0,0,0.35);
}

.age-gate__card h2 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  margin: 0 0 1rem;
}

.age-gate__card p {
  font-size: 0.88rem;
  color: var(--color-ink-soft);
  margin: 0 0 1.5rem;
}

.age-gate__actions {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.65rem 1.4rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-ink-soft);
}

.breadcrumb {
  font-size: 0.8rem;
  color: var(--color-ink-soft);
  margin: 1.25rem 0 0;
}