/* ============================
   ベース
   ============================ */

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family:
    "A1 Mincho",
    "Source Han Serif JP",
    "Source Han Serif",
    "Noto Serif JP",
    "Yu Mincho",
    "Hiragino Mincho ProN",
    "MS PMincho",
    serif;
  line-height: 1.8;
  color: #202520;
  background: #f3f4f2;
}

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

a {
  color: inherit;
  text-decoration: none;
}

/* セクション共通 */
.section {
  padding: 80px 20px;
}

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section-title {
  font-size: 1.8rem;
  letter-spacing: 0.18em;
  margin-bottom: 24px;
  font-weight: 600;
}

.section-lead {
  font-size: 1rem;
  margin-bottom: 18px;
}

/* 明るい／暗い背景 */
.section-light {
  background: #f5f7f3;
}

.section-dark {
  background: #222b25;
  color: #f5f7f3;
}

.section-gallery {
  background: #e4ebe3;
}

/* ============================
   グローバルヘッダー
   ============================ */

.global-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 32px;
  color: #ffffff;
  mix-blend-mode: normal;
  pointer-events: none; /* 中身だけクリック可にするため */
}

.logo {
  font-weight: 600;
  letter-spacing: 0.22em;
  font-size: 0.9rem;
  pointer-events: auto;
}

.global-nav ul {
  list-style: none;
  display: flex;
  gap: 16px;
  margin: 0;
  padding: 0;
  pointer-events: auto;
}

.global-nav a {
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}

.global-nav a:hover {
  border-bottom-color: rgba(255,255,255,0.85);
}

/* ============================
   ヒーロー
   ============================ */

.hero {
  position: relative;
  min-height: 100vh;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #ffffff;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, rgba(0,0,0,0.55), rgba(0,0,0,0.25)),
    url("images/hero-iwabokki.jpg") center/cover no-repeat;
  z-index: -1;
}

.hero-inner {
  max-width: 720px;
}

.hero-label {
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  margin-bottom: 12px;
}

.hero h1 {
  font-size: 2.6rem;
  letter-spacing: 0.32em;
  margin: 0 0 18px;
}

.hero-sub {
  font-size: 0.98rem;
  margin-bottom: 32px;
}

.hero-scroll {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  padding-bottom: 4px;
  border-bottom: 1px solid rgba(255,255,255,0.8);
}

/* ============================
   風景セクション（左右2カラム）
   ============================ */

.section-image-right .section-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  align-items: center;
}

.section-image-right .section-text {
  flex: 1.1 1 260px;
}

.section-image-right .section-photo {
  flex: 1 1 260px;
}

/* ============================
   旧水門・新水門 タイトル写真ブロック
   ============================ */

.title-with-photo {
  position: relative;
  margin: 40px 0 20px;
}

.title-with-photo img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  border-radius: 10px;
  opacity: 0.90;               /* 上質な淡いトーンに */
  filter: grayscale(35%);
  box-shadow: 0 10px 28px rgba(0,0,0,0.25);
}

.title-with-photo h3 {
  position: absolute;
  bottom: 22px;
  left: 24px;
  margin: 0;
  padding: 10px 18px;
  font-size: 1.7rem;
  font-family: "Noto Serif JP", serif;
  letter-spacing: 0.18em;
  color: #ffffff;
  font-weight: 600;
  text-shadow: 0 0 12px rgba(0,0,0,0.45);
}

/* ============================
   画像＋短文ブロック
   ============================ */

.feature-block {
  padding: 100px 20px;
}

.feature-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 60px;
  align-items: center;
}

.feature-photo img {
  width: 100%;
  border-radius: 10px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.feature-text {
  font-size: 1rem;
  line-height: 1.8;
}

.feature-title {
  font-size: 1.4rem;
  letter-spacing: 0.15em;
  margin-bottom: 18px;
  font-weight: 600;
}

/* 写真を右側にするバージョン */
.feature-block.reverse .feature-inner {
  grid-template-columns: 1fr 1.4fr;
}

.feature-block.reverse .feature-photo {
  order: 2;
}

/* スマホ対応 */
@media (max-width: 768px) {
  .feature-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .feature-block.reverse .feature-photo {
    order: 0;
  }
}
/* ============================
   アクセス
   ============================ */

.access-grid {
  display: grid;
  grid-template-columns: minmax(0, 2.2fr) minmax(0, 1.3fr);
  gap: 24px;
  align-items: flex-start;
}

.access-table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.95rem;
}

.access-table th,
.access-table td {
  border: 1px solid #d0d7cf;
  padding: 8px 10px;
  vertical-align: top;
}

.access-table th {
  background: #dde6de;
  width: 6em;
}

.note {
  font-size: 0.82rem;
  color: #666;
  margin-top: 6px;
}

.access-map .map-dummy {
  border-radius: 8px;
  border: 1px dashed #9fb19f;
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: #7a8a7a;
}

/* ============================
   ギャラリー
   ============================ */

.gallery-grid {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.gallery-grid img {
  border-radius: 8px;
  border: 2px solid #d0ddd2;
}

/* ============================
   フッター
   ============================ */

.site-footer {
  text-align: center;
  padding: 24px 10px 32px;
  font-size: 0.8rem;
  color: #666;
}

/* ============================
   レスポンシブ
   ============================ */

@media (max-width: 768px) {
  .global-header {
    padding: 12px 16px;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .global-nav ul {
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .hero h1 {
    font-size: 2.0rem;
    letter-spacing: 0.24em;
  }

  .section {
    padding: 60px 16px;
  }

  .access-grid {
    grid-template-columns: 1fr;
  }

  .title-with-photo img {
    height: 200px;
  }

  .title-with-photo h3 {
    font-size: 1.4rem;
    bottom: 18px;
    left: 18px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.7rem;
  }

  .section-title {
    font-size: 1.4rem;
  }
}

/* ===============================
   Hero左下インフォメーション
================================ */
.hero-info {
  position: absolute;
  bottom: 60px;
  left: 60px;
  color: #ffffff;
  z-index: 10;
  font-family: "Noto Serif JP", serif;
  text-shadow: 0 2px 6px rgba(0,0,0,0.25);
}

.hero-info-row {
  display: flex;
  align-items: flex-end;  /* VIEW MORE の位置をそろえる */
  column-gap: 24px;       /* ボックスと線の間のざっくりした余白 */
}

/* 左右のボックス */
.hero-info-block {
  display: flex;
  flex-direction: column;   /* タイトル→日付→VIEW MORE を縦並びに */
}

/* 縦の仕切り線 */
.hero-info-divider {
  width: 1px;
  height: 60px;             /* 線の長さ。好みで調整OK */
  background-color: rgba(255,255,255,0.7);
}

  
}

.hero-info-title {
  font-size: 22px;
  letter-spacing: 0.12em;
  margin-bottom: 6px;
}

.hero-info-date {
  font-size: 14px;
  opacity: 0.9;
  margin-bottom: 12px;
  letter-spacing: 0.1em;
}

.hero-info-more {
  display: inline-block;
  font-size: 13px;
  padding-bottom: 2px;
  letter-spacing: 0.15em;
  text-decoration: none;
  color: #ffffff;
  border-bottom: 1px solid rgba(255,255,255,0.8);
  transition: opacity 0.25s ease;
}

.hero-info-more:hover {
  opacity: 0.6;
}


/* すべての説明文（pタグ）の文字サイズを小さくする */
p {
  font-size: 13px;   /* ← 好きなサイズに変更（例：13〜16px）*/
  line-height: 1.9;
}