/* エリアページ共通スタイル(exploration/<area>.html で共有) */

.area-breadcrumb {
  padding: 0.75rem 1.5rem;
  font-size: 0.85rem;
  border-bottom: 1px solid color-mix(in oklch, var(--brass) 30%, transparent);
}

.area-breadcrumb__link {
  color: var(--ember);
}

.area-breadcrumb__link:hover {
  color: var(--brass);
}

.area-breadcrumb__sep {
  margin: 0 0.4rem;
  color: color-mix(in oklch, var(--brass) 50%, transparent);
}

.area-breadcrumb__current {
  color: var(--brass);
}

/* ヒーロー: ビジュアル(上) + テキスト(下) */
.area-hero {
  display: grid;
  grid-template-rows: auto auto;
}

.area-hero__visual {
  /* 画像はMidjourneyで --ar 5:1 生成のため、コンテナのアスペクト比を合わせて
     object-fit: cover によるクロップを最小限にする(幅が広いページでも
     画像の上下が過度に見切れないようにするため)。max-heightは
     超ワイド画面での縦伸びを防ぐ上限。 */
  aspect-ratio: 5 / 1;
  max-height: 320px;
  background-color: color-mix(in srgb, var(--emerald) 30%, var(--ink));
  background-image: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 10px,
    color-mix(in oklch, var(--brass) 7%, transparent) 10px,
    color-mix(in oklch, var(--brass) 7%, transparent) 11px
  );
  overflow: hidden;
}

.area-hero__visual-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* エリア固有ビジュアル(画像がない場合のフォールバック) */
.area-hero__visual--alchemy {
  background-color: color-mix(in srgb, var(--ember) 18%, var(--ink));
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 14px,
      color-mix(in oklch, var(--brass) 7%, transparent) 14px,
      color-mix(in oklch, var(--brass) 7%, transparent) 15px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 24px,
      color-mix(in oklch, var(--ember) 6%, transparent) 24px,
      color-mix(in oklch, var(--ember) 6%, transparent) 25px
    );
}

.area-hero__visual--airship {
  background-color: color-mix(in srgb, var(--emerald) 40%, var(--ink));
  background-image:
    repeating-linear-gradient(
      180deg,
      transparent,
      transparent 18px,
      color-mix(in oklch, var(--brass) 6%, transparent) 18px,
      color-mix(in oklch, var(--brass) 6%, transparent) 19px
    ),
    repeating-linear-gradient(
      175deg,
      transparent,
      transparent 40px,
      color-mix(in oklch, var(--emerald) 12%, transparent) 40px,
      color-mix(in oklch, var(--emerald) 12%, transparent) 41px
    );
}

.area-hero__visual--summoning {
  background-color: color-mix(in srgb, var(--emerald) 20%, var(--ink));
  background-image:
    repeating-linear-gradient(
      30deg,
      transparent,
      transparent 12px,
      color-mix(in oklch, var(--brass) 9%, transparent) 12px,
      color-mix(in oklch, var(--brass) 9%, transparent) 13px
    ),
    repeating-linear-gradient(
      -30deg,
      transparent,
      transparent 12px,
      color-mix(in oklch, var(--brass) 9%, transparent) 12px,
      color-mix(in oklch, var(--brass) 9%, transparent) 13px
    );
}

.area-hero__visual--grand-library {
  background-color: color-mix(in srgb, var(--emerald) 35%, var(--ink));
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 6px,
      color-mix(in oklch, var(--brass) 6%, transparent) 6px,
      color-mix(in oklch, var(--brass) 6%, transparent) 7px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 28px,
      color-mix(in oklch, var(--emerald) 20%, transparent) 28px,
      color-mix(in oklch, var(--emerald) 20%, transparent) 29px
    );
}

.area-hero__visual--clock-tower {
  background-color: color-mix(in srgb, var(--silver) 14%, var(--ink));
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 20px,
      color-mix(in oklch, var(--silver) 7%, transparent) 20px,
      color-mix(in oklch, var(--silver) 7%, transparent) 21px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 20px,
      color-mix(in oklch, var(--silver) 7%, transparent) 20px,
      color-mix(in oklch, var(--silver) 7%, transparent) 21px
    );
}

.area-hero__visual--dueling-ground {
  background-color: color-mix(in srgb, var(--crimson) 28%, var(--ink));
  background-image:
    repeating-linear-gradient(
      50deg,
      transparent,
      transparent 18px,
      color-mix(in oklch, var(--crimson) 14%, transparent) 18px,
      color-mix(in oklch, var(--crimson) 14%, transparent) 19px
    ),
    repeating-linear-gradient(
      -50deg,
      transparent,
      transparent 18px,
      color-mix(in oklch, var(--ember) 8%, transparent) 18px,
      color-mix(in oklch, var(--ember) 8%, transparent) 19px
    );
}

.area-hero__visual--observatory {
  background-color: color-mix(in srgb, var(--azure) 14%, var(--ink));
  background-image:
    repeating-radial-gradient(
      circle at 50% 50%,
      transparent,
      transparent 30px,
      color-mix(in oklch, var(--azure) 10%, transparent) 30px,
      color-mix(in oklch, var(--azure) 10%, transparent) 31px
    );
}

.area-hero__body {
  padding: 2rem 1.5rem 1.75rem;
  border-bottom: 1px solid var(--brass);
}

.area-hero__title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--brass);
  margin: 0 0 0.75rem;
}

.area-hero__desc {
  font-size: 1rem;
  color: color-mix(in oklch, var(--brass) 82%, transparent);
  margin: 0;
  line-height: 1.7;
  max-width: 640px;
}

/* コンテンツエリア */
.area-content {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}

.area-section {
  padding-top: 2.5rem;
}

.area-section + .area-section {
  border-top: 1px solid color-mix(in oklch, var(--brass) 25%, transparent);
  margin-top: 2.5rem;
}

.area-section__heading {
  font-size: 1.15rem;
  color: var(--brass);
  border-bottom: 1px solid color-mix(in oklch, var(--brass) 35%, transparent);
  padding-bottom: 0.4rem;
  margin: 0 0 1.25rem;
}

.area-section__body {
  font-size: 0.95rem;
  color: color-mix(in oklch, var(--brass) 85%, transparent);
  line-height: 1.75;
  margin: 0;
}

.area-section__body + .area-section__body {
  margin-top: 0.75rem;
}

/* アトラクションリスト */
.attraction-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.attraction-item {
  border-left: 3px solid var(--ember);
  background-color: color-mix(in oklch, var(--emerald) 10%, var(--ink));
  transition: border-left-color 0.18s;
}

.attraction-item:hover {
  border-left-color: var(--brass);
}

.attraction-item.is-open {
  border-left-color: var(--brass);
}

/* アコーディオントリガー */
.attraction-item__trigger {
  width: 100%;
  background: none;
  border: none;
  padding: 1rem 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.875rem;
  text-align: left;
  color: inherit;
  font-family: inherit;
}

.attraction-item__name {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--brass);
  line-height: 1.4;
  margin-bottom: 0.3rem;
}

.attraction-item__teaser {
  display: block;
  font-size: 0.8rem;
  color: color-mix(in oklch, var(--brass) 76%, transparent);
  line-height: 1.6;
}

.attraction-item__indicator {
  flex-shrink: 0;
  margin-top: 0.25rem;
  font-size: 0.6rem;
  color: var(--ember);
  transition: transform 0.22s ease;
  line-height: 1;
}

.attraction-item__indicator::before {
  content: '▶';
}

.attraction-item.is-open .attraction-item__indicator {
  transform: rotate(90deg);
}

/* 展開パネル */
.attraction-item__panel {
  padding: 0 1.25rem 1.25rem;
}

.attraction-item__desc {
  font-size: 0.875rem;
  color: color-mix(in oklch, var(--brass) 82%, transparent);
  line-height: 1.75;
  margin: 0 0 0.75rem;
}

.attraction-item__notes {
  font-size: 0.78rem;
  color: color-mix(in oklch, var(--brass) 76%, transparent);
  border-top: 1px solid color-mix(in oklch, var(--brass) 18%, transparent);
  padding-top: 0.6rem;
  margin: 0;
  line-height: 1.65;
}

/* スケジュール・設備一覧(dl グリッド) */
.area-timetable {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.5rem 1.5rem;
  margin: 0;
  font-size: 0.9rem;
}

.area-timetable dt {
  color: var(--ember);
  white-space: nowrap;
  padding-top: 0.125rem;
}

.area-timetable dd {
  color: color-mix(in oklch, var(--brass) 85%, transparent);
  margin: 0;
  line-height: 1.55;
}

.area-timetable__sub {
  display: block;
  font-size: 0.8rem;
  color: color-mix(in oklch, var(--brass) 76%, transparent);
}

/* エリア施設リンク */
.area-facilities {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-top: 1rem;
}

.area-facilities__link {
  font-size: 0.8rem;
  font-weight: 700;
  color: color-mix(in oklch, var(--brass) 75%, transparent);
  border: 1px solid color-mix(in oklch, var(--brass) 30%, transparent);
  padding: 0.3rem 0.875rem;
  transition: color 0.2s, border-color 0.2s;
}

.area-facilities__link:hover {
  color: var(--brass);
  border-color: color-mix(in oklch, var(--brass) 55%, transparent);
}

/* ご案内ボックス */
.area-info {
  margin-top: 2.5rem;
  padding: 1.5rem;
  border: 1px solid color-mix(in oklch, var(--brass) 35%, transparent);
  border-top: 3px solid var(--brass);
}

.area-info__heading {
  font-size: 1.05rem;
  color: var(--brass);
  margin: 0 0 1rem;
}

.area-info__list {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.5rem 1.25rem;
  margin: 0;
  font-size: 0.9rem;
}

.area-info__list dt {
  color: var(--ember);
  white-space: nowrap;
}

.area-info__list dd {
  color: color-mix(in oklch, var(--brass) 85%, transparent);
  margin: 0;
}

@media (width <= 600px) {
  .area-hero {
    grid-template-rows: 180px auto;
  }

  .area-hero__title {
    font-size: 1.6rem;
  }

  .area-content {
    padding: 0 1rem 2rem;
  }

  .area-timetable {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .area-info__list {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .area-timetable dt {
    margin-top: 0.75rem;
  }

  .area-info__list dt {
    margin-top: 0.75rem;
  }

  .area-timetable dt:first-child {
    margin-top: 0;
  }

  .area-info__list dt:first-child {
    margin-top: 0;
  }
}