/* ===========================================================
   Ecosystem Pages (カテゴリ: 自然生態系)
   =========================================================== */

/* CSS変数のエイリアス定義（自然生態系用） */
/* --cat-eco は #bba1cb（ラベンダー）のため、濃色要素には暗め版を使う */
.rdb-page--eco {
  --rdb-main-dark: #7a5a8f;       /* #bba1cb を暗くした濃紫（テキスト・バッジ用） */
  --rdb-main-light: var(--cat-eco-weak, rgba(187, 161, 203, 0.15));
  --kp-muted: #5a4a6a;
  --kp-ink: var(--color-text, #222426);
}

.division-header {
  margin: clamp(24px, 6vw, 48px) 0;
  padding: clamp(24px, 5vw, 48px);
  text-align: center;
  background: linear-gradient(135deg, color-mix(in oklab, var(--rdb-main-light, var(--cat-eco-weak)), #fff 20%), #fff);
  border: 1px solid color-mix(in oklab, var(--rdb-main-light, var(--cat-eco-weak)), #000 10%);
  border-radius: 32px;
  box-shadow: var(--shadow-md, 0 14px 30px rgba(0, 0, 0, 0.06));
}

.division-title {
  margin: 0 0 0.75rem;
  font-size: clamp(2.2rem, 5vw, 2.8rem);
  font-family: var(--font-serif, "Noto Serif JP", "Yu Mincho", serif);
  color: var(--rdb-main-dark, var(--cat-eco, #2c6a7b));
}

.division-description {
  margin: 0 auto;
  max-width: 720px;
  font-size: 1.05rem;
  color: var(--kp-muted, var(--color-muted-text, #646a6e));
  line-height: 1.8;
}

.icon-links {
  list-style: none;
  margin: clamp(16px, 4vw, 32px) 0 clamp(8px, 3vw, 24px);
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: clamp(16px, 3vw, 32px);
}

.icon-link {
  border-radius: 18px;
  border: 1px solid color-mix(in oklab, var(--rdb-main-light), #000 12%);
  background: #fff;
  box-shadow: var(--shadow-s, 0 8px 16px rgba(0, 0, 0, 0.05));
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.icon-link a {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.75rem;
  padding: clamp(16px, 3vw, 28px);
  text-decoration: none;
  color: var(--kp-ink);
}

.icon-link img {
  width: 92px;
  height: 92px;
  object-fit: contain;
}

.icon-label {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.icon-link:hover {
  transform: translateY(-4px);
  border-color: color-mix(in oklab, var(--rdb-main-dark, var(--cat-eco)), #fff 40%);
  box-shadow: var(--shadow-md, 0 18px 28px rgba(0, 0, 0, 0.07));
}

/* 自然生態系ページ内の h2 見出しをゴシックに統一 */
.rdb-page--eco .h2 {
  font-family: var(--font-sans, "Noto Sans JP", sans-serif);
}

.ecosystem-links {
  margin-top: clamp(32px, 6vw, 48px);
}

/* --- 地域生態系フィーチャーカード --- */
.eco-feature-card {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 1.75rem 2rem;
  background: #fff;
  border: 1px solid color-mix(in oklab, var(--cat-eco, #bba1cb), #fff 50%);
  border-radius: 18px;
  box-shadow: inset 5px 0 0 var(--cat-eco, #bba1cb), 0 4px 16px rgba(0, 0, 0, 0.05);
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.eco-feature-card:hover {
  transform: translateY(-4px);
  box-shadow: inset 5px 0 0 var(--rdb-main-dark, #7a5a8f), 0 12px 28px rgba(0, 0, 0, 0.10);
}

.eco-feature-card__icon {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
}

.eco-feature-card__icon .subcat-card__icon-mask {
  width: 64px;
  height: 64px;
  background-color: var(--cat-eco, #bba1cb);
}

.eco-feature-card__body {
  flex: 1;
}

.eco-feature-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  font-family: var(--font-sans, "Noto Sans JP", sans-serif);
  margin: 0 0 0.5rem;
  color: #000;
}

.eco-feature-card__link {
  color: #000;
  text-decoration: none;
}

.eco-feature-card__desc {
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--color-muted-text, #646a6e);
  margin: 0;
}

.history-section {
  margin: clamp(40px, 8vw, 72px) 0;
}

.history-card-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin: 0;
}

.history-card {
  display: flex;
  flex-direction: column;
  border: 1px solid color-mix(in oklab, var(--rdb-main-dark), #fff 30%);
  border-radius: 18px;
  padding: 1.6rem 1.8rem;
  background: #fff;
  box-shadow: var(--shadow-s, 0 10px 20px rgba(0, 0, 0, 0.05));
  text-decoration: none !important;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  position: relative;
  overflow: hidden;
  color: inherit;
}

.history-card * {
  text-decoration: none !important;
}

.history-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--rdb-main-dark, var(--cat-eco, #2c6a7b));
  opacity: 0;
  transition: opacity 0.2s ease;
}

.history-card:hover {
  transform: translateY(-4px);
  border-color: var(--rdb-main-dark, var(--cat-eco, #2c6a7b));
  box-shadow: var(--shadow-md, 0 18px 28px rgba(0, 0, 0, 0.08));
}

.history-card:hover::before {
  opacity: 1;
}

/* ナンバーとタイトルを横並び（番号左・テキスト右、折り返し時はテキスト下で字下げ） */
.history-card__link {
  display: flex !important;
  align-items: flex-start;
  gap: 0.875rem;
  text-decoration: none !important;
  color: #000;
  flex: 1;
  min-width: 0;
}

.history-card__number {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 2rem !important;
  height: 2rem !important;
  min-width: 2rem !important;
  min-height: 2rem !important;
  border-radius: 50% !important;
  background: #222 !important;
  color: #fff !important;
  font-size: 0.95rem !important;
  font-weight: 700 !important;
  flex-shrink: 0 !important;
  line-height: 1 !important;
  text-decoration: none !important;
  margin: 0 !important;
  padding: 0 !important;
  box-sizing: border-box !important;
}

.history-card__status {
  display: inline-flex !important;
  align-items: center;
  gap: 0.3em;
  padding: 0.15rem 0.8rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  background: color-mix(in oklab, var(--rdb-main-light, var(--cat-eco-weak)), #fff 40%);
  color: color-mix(in oklab, var(--rdb-main-dark, var(--cat-eco)), #000 15%);
  margin-left: auto;
}

.history-card-title {
  display: block;
  flex: 1;
  min-width: 0;
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
  color: #000;
  line-height: 1.6;
  text-decoration: none;
}

/* サブタイトル（個別ページと同様、フォントサイズで差別化） */
.history-card-title__main {
  display: block;
}

.history-card-title__sub {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-muted-text, #646a6e);
}

.page-header__icon-wrapper .icon-glyph {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-size: 2.4rem;
  color: var(--rdb-main-dark, var(--cat-eco, #2c6a7b));
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  padding: 0.15rem 0.8rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  background: color-mix(in oklab, var(--rdb-main-light, var(--cat-eco-weak)), #fff 40%);
  color: color-mix(in oklab, var(--rdb-main-dark, var(--cat-eco)), #000 15%);
}

.button-container {
  margin-bottom: var(--space-4, 1.5rem);
}

.icon-link .status {
  margin-top: 0.25rem;
}

@media (max-width: 768px) {
  .history-card-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .history-card {
    padding: 1.2rem 1.1rem;
  }

  .history-card__number {
    width: 1.75rem;
    height: 1.75rem;
    font-size: 0.85rem;
  }

  .history-card-title {
    font-size: 0.95rem;
  }

  .history-card-title__sub {
    font-size: 0.85rem;
  }
}