/* ================= ALUBA28 =================
   明るい和紙トーン / 写真主役 / 和モダン
   ============================================ */

:root {
  --washi: #f7f2e8;
  --white: #fffcf6;
  --sumi: #322c25;
  --matsu: #405441;   /* 深い松緑 */
  --matsu-dark: #33452f;
  --kusa: #73846b;    /* 草木の緑 */
  --kincha: #b9955a;  /* 金茶 */
  --sand: #e8dcc7;    /* 淡い砂色 */

  --serif: "Shippori Mincho", "Noto Serif JP", serif;
  --serif-en: "Cormorant Garamond", "Shippori Mincho", serif;
  --sans: "Noto Sans JP", system-ui, -apple-system, "Hiragino Kaku Gothic ProN", sans-serif;

  --header-h: 76px;
  --max: 1160px;
  --radius: 4px;
  --shadow: 0 12px 30px rgba(50, 44, 37, 0.10);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--sumi);
  background-color: var(--washi);
  line-height: 1.85;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 600; line-height: 1.5; margin: 0; }

.romaji {
  font-family: var(--serif-en);
  font-style: italic;
  color: var(--kusa);
  font-size: 0.72em;
  letter-spacing: 0.04em;
  margin-left: 0.4em;
}

/* ---------- ボタン ---------- */
.btn {
  display: inline-block;
  padding: 15px 34px;
  border-radius: var(--radius);
  font-family: var(--sans);
  font-weight: 700;
  font-size: 0.98rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background-color 0.25s;
}
.btn--primary {
  background: var(--matsu);
  color: #fff;
  box-shadow: 0 8px 20px rgba(64, 84, 65, 0.28);
}
.btn--primary:hover { transform: translateY(-3px); box-shadow: 0 12px 26px rgba(64, 84, 65, 0.35); }
.btn--ghost {
  background: var(--white);
  color: var(--matsu);
  border: 1px solid var(--matsu);
}
.btn--ghost:hover { transform: translateY(-3px); background: var(--sand); }

/* ================= ヘッダー ================= */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(16px, 4vw, 40px);
  z-index: 100;
  background: rgba(247, 242, 232, 0);
  transition: background-color 0.4s, box-shadow 0.4s, height 0.4s;
}
.header.scrolled {
  background: rgba(247, 242, 232, 0.94);
  box-shadow: 0 2px 16px rgba(50, 44, 37, 0.08);
  backdrop-filter: blur(6px);
}
.header__logo img { height: 42px; width: auto; transition: height 0.4s, filter 0.4s; }
.header.scrolled .header__logo img { height: 34px; }

/* 最上部（動画の上）では白ロゴ・白文字で見やすく。スクロール後は通常色。 */
.header:not(.scrolled) .header__logo img {
  filter: brightness(0) invert(1) drop-shadow(0 1px 6px rgba(30, 26, 22, 0.5));
}
.header:not(.scrolled) .nav__link {
  color: #fff;
  text-shadow: 0 1px 6px rgba(30, 26, 22, 0.45);
}
.header:not(.scrolled) .nav__link--book { text-shadow: none; }
.header:not(.scrolled) .lang__btn {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.12);
}
.header:not(.scrolled) .lang__btn.active {
  background: var(--matsu);
  border-color: var(--matsu);
}

.nav { display: flex; align-items: center; gap: clamp(14px, 1.6vw, 26px); }
.nav__link {
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 6px 2px;
  white-space: nowrap;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--kincha);
  transition: width 0.3s var(--ease);
}
.nav__link:hover::after { width: 100%; }
.nav__link--book {
  background: var(--matsu);
  color: #fff;
  padding: 9px 20px;
  border-radius: var(--radius);
}
.nav__link--book::after { display: none; }
.nav__link--book:hover { background: var(--matsu-dark); }

/* 言語切り替え */
.lang { display: flex; gap: 4px; align-items: center; margin-left: 6px; }
.lang__btn {
  border: 1px solid rgba(115, 132, 107, 0.5);
  background: rgba(255, 252, 246, 0.6);
  color: var(--sumi);
  font-family: var(--sans);
  font-size: 0.76rem;
  padding: 5px 8px;
  border-radius: 3px;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s;
  line-height: 1;
}
.lang__btn:hover { background: var(--sand); }
.lang__btn.active { background: var(--matsu); color: #fff; border-color: var(--matsu); }

/* ハンバーガー */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  background: rgba(255, 252, 246, 0.7);
  border: 1px solid rgba(115, 132, 107, 0.4);
  border-radius: var(--radius);
  cursor: pointer;
}
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--sumi);
  margin: 0 auto;
  transition: transform 0.3s, opacity 0.3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ================= ヒーロー ================= */
.hero {
  position: relative;
  height: 100svh;
  min-height: 560px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}
.hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
  border-radius: 0;
  overflow: hidden;
  transition: inset 0.6s var(--ease), border-radius 0.6s var(--ease);
  will-change: inset;
}
/* スクロールで縮小（TENKU風）。JSで .shrink 付与 */
.hero__media.shrink {
  inset: 90px clamp(16px, 5vw, 70px) 60px;
  border-radius: 6px;
  box-shadow: var(--shadow);
}
.hero__video {
  width: 100%; height: 100%;
  object-fit: cover;
}
.hero__scrim {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(50,44,37,0.28) 0%, rgba(50,44,37,0.12) 40%, rgba(50,44,37,0.34) 100%);
}
.hero__inner {
  position: relative;
  z-index: 1;
  color: #fff;
  padding: 20px;
  max-width: 900px;
  text-shadow: 0 2px 18px rgba(30, 26, 22, 0.4);
}
.hero__brand {
  font-family: var(--serif-en);
  letter-spacing: 0.28em;
  font-size: 0.9rem;
  margin: 0 0 22px;
  opacity: 0.95;
}
.hero__copy {
  font-size: clamp(1.7rem, 4.6vw, 3.2rem);
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.7;
  margin: 0;
}
.hero__sub {
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  margin: 22px 0 34px;
  letter-spacing: 0.08em;
}
.hero__scroll {
  position: absolute;
  bottom: 26px; left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  color: #fff;
  font-family: var(--serif-en);
  letter-spacing: 0.2em;
  font-size: 0.72rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.hero__scroll-line {
  width: 1px; height: 46px;
  background: rgba(255,255,255,0.7);
  animation: scrollLine 2s ease-in-out infinite;
  transform-origin: top;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); opacity: 0; }
  40% { transform: scaleY(1); opacity: 1; }
  100% { transform: scaleY(0); opacity: 0; transform-origin: bottom; }
}

/* ================= 入口ブロック ================= */
.gateway {
  background: var(--washi);
  padding: clamp(40px, 7vw, 80px) clamp(16px, 4vw, 40px);
}
.gateway__grid {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.gate {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 3 / 4;
  display: block;
}
.gate img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.9s var(--ease);
}
.gate::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(50,44,37,0) 40%, rgba(50,44,37,0.62) 100%);
}
.gate:hover img { transform: scale(1.07); }
.gate__label {
  position: absolute;
  left: 0; right: 0; bottom: 18px;
  z-index: 1;
  color: #fff;
  text-align: center;
  text-shadow: 0 2px 12px rgba(30,26,22,0.5);
}
.gate__jp {
  display: block;
  font-family: var(--serif);
  font-size: clamp(1.05rem, 1.6vw, 1.4rem);
  letter-spacing: 0.08em;
}
.gate__en {
  display: block;
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  opacity: 0.9;
  margin-top: 2px;
}

/* ================= セクション共通 ================= */
.section {
  padding: clamp(56px, 9vw, 110px) clamp(16px, 4vw, 40px);
  position: relative;
}
.section--alt { background: var(--sand); }
.section__head { max-width: var(--max); margin: 0 auto clamp(30px, 5vw, 54px); text-align: center; }
.section__en {
  font-family: var(--serif-en);
  font-style: italic;
  color: var(--kincha);
  letter-spacing: 0.22em;
  font-size: 0.95rem;
  margin: 0 0 10px;
}
.section__title {
  font-size: clamp(1.5rem, 3.4vw, 2.3rem);
  letter-spacing: 0.08em;
  position: relative;
  display: inline-block;
  padding-bottom: 16px;
}
.section__title::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 0;
  transform: translateX(-50%);
  width: 46px; height: 2px;
  background: var(--kincha);
}
.section__desc {
  max-width: 640px;
  margin: 18px auto 0;
  color: #57503f;
  font-size: 1rem;
}

/* about */
.about__body {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}
.about__text p { margin: 0 0 18px; }
.about__lead {
  font-family: var(--serif);
  font-size: 1.3rem;
  color: var(--matsu);
  letter-spacing: 0.06em;
}
.about__figure { margin: 0; overflow: hidden; border-radius: var(--radius); box-shadow: var(--shadow); }
/* ALUBA28の看板写真は縦長の原画を切らずに見せる */
.about__figure img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: center;
}

/* feature（左右交互の大きな写真） */
.feature {
  max-width: var(--max);
  margin: 0 auto clamp(34px, 6vw, 64px);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(20px, 4vw, 50px);
  align-items: center;
}
.feature--reverse .feature__media { order: 2; }
.feature__media { margin: 0; overflow: hidden; border-radius: var(--radius); box-shadow: var(--shadow); }
.feature__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 1s var(--ease);
}
.feature:hover .feature__media img { transform: scale(1.04); }
.feature__title { font-size: clamp(1.25rem, 2.4vw, 1.7rem); margin-bottom: 14px; }
.feature__text p { margin: 0; color: #524b3c; }

/* rooms */
.rooms__heading {
  max-width: var(--max);
  margin: clamp(30px, 5vw, 60px) auto 24px;
  font-size: 1.4rem;
  text-align: center;
  letter-spacing: 0.08em;
}
.rooms {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.room-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 6px 18px rgba(50,44,37,0.07);
}
.room-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.room-card__body { padding: 16px 18px 20px; }
.room-card__body h4 { font-size: 1.1rem; margin-bottom: 6px; }
.room-card__body p { margin: 0; font-size: 0.92rem; color: #57503f; }
.rooms__note {
  max-width: var(--max);
  margin: 22px auto 0;
  text-align: center;
  font-size: 0.9rem;
  color: #6b6353;
}

/* accordion */
.accordion {
  max-width: var(--max);
  margin: clamp(30px, 4vw, 46px) auto 0;
  background: var(--white);
  border: 1px solid var(--sand);
  border-radius: var(--radius);
  overflow: hidden;
}
.accordion summary {
  cursor: pointer;
  padding: 18px 22px;
  font-family: var(--serif);
  font-size: 1.05rem;
  list-style: none;
  position: relative;
}
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::after {
  content: "＋";
  position: absolute; right: 22px; top: 50%;
  transform: translateY(-50%);
  color: var(--kincha);
}
.accordion[open] summary::after { content: "－"; }
.accordion__body {
  padding: 4px 22px 24px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px 30px;
}
.amenity-group h5 {
  margin: 0 0 4px;
  font-family: var(--sans);
  font-size: 0.9rem;
  color: var(--matsu);
  letter-spacing: 0.04em;
}
.amenity-group p { margin: 0; font-size: 0.9rem; color: #57503f; }

/* gallery */
.gallery {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.gallery--3 { grid-template-columns: repeat(3, 1fr); max-width: 960px; }
.gallery img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius);
  transition: transform 0.8s var(--ease);
}
.gallery--3 img { aspect-ratio: 3 / 4; }
.gallery img:hover { transform: scale(1.04); }

.notelist {
  max-width: 760px;
  margin: clamp(26px, 4vw, 40px) auto 0;
  padding: 0;
  list-style: none;
}
.notelist li {
  padding: 12px 0 12px 26px;
  border-bottom: 1px dashed rgba(185, 149, 90, 0.4);
  position: relative;
  font-size: 0.96rem;
}
.notelist li::before {
  content: "";
  position: absolute; left: 4px; top: 20px;
  width: 8px; height: 8px;
  background: var(--kincha);
  transform: rotate(45deg);
}

/* plans */
.plans {
  max-width: var(--max);
  margin: clamp(30px, 5vw, 48px) auto 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.plan {
  background: var(--white);
  border-radius: var(--radius);
  padding: 26px 28px;
  box-shadow: 0 6px 18px rgba(50,44,37,0.07);
  border-top: 3px solid var(--matsu);
}
.plan h3 { font-size: 1.2rem; margin-bottom: 6px; letter-spacing: 0.04em; }
.plan__note { margin: 0 0 14px; font-size: 0.85rem; color: var(--kusa); }
.plan ul { list-style: none; padding: 0; margin: 0; }
.plan ul li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px solid var(--sand);
  gap: 12px;
}
.plan ul li b { font-family: var(--serif); font-size: 1.15rem; color: var(--matsu); white-space: nowrap; }
.plan__small { margin: 14px 0 0; font-size: 0.82rem; color: #6b6353; line-height: 1.7; }
.plans__extra {
  max-width: 820px;
  margin: 26px auto 0;
  text-align: center;
  font-size: 0.94rem;
  color: #57503f;
}

/* area */
.area-grid {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.area-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px 26px;
  box-shadow: 0 6px 18px rgba(50,44,37,0.06);
  border-left: 3px solid var(--kincha);
}
.area-card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.area-card p { margin: 0; font-size: 0.94rem; color: #57503f; }

/* access */
.access {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 4vw, 44px);
}
.access__info dl { margin: 0 0 24px; }
.access__info dt {
  font-family: var(--serif);
  color: var(--matsu);
  font-size: 0.95rem;
  margin-top: 14px;
}
.access__info dd { margin: 4px 0 0; }
.access__transfer, .house-rules { margin-top: 22px; }
.access__transfer h3, .house-rules h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  padding-left: 12px;
  border-left: 3px solid var(--kincha);
}
.access__transfer p { margin: 0; font-size: 0.92rem; color: #57503f; }
.house-rules ul { margin: 0; padding-left: 20px; }
.house-rules li { font-size: 0.92rem; color: #57503f; }
.access__map {
  min-height: 340px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.access__map iframe { width: 100%; height: 100%; min-height: 340px; }

/* booking */
.section--booking { background: var(--washi); }
.book-buttons {
  max-width: 900px;
  margin: 0 auto clamp(30px, 5vw, 48px);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.book-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  padding: 20px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--sand);
  box-shadow: 0 6px 16px rgba(50,44,37,0.06);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
  text-align: center;
}
.book-btn:hover { transform: translateY(-3px); box-shadow: 0 12px 24px rgba(50,44,37,0.12); }
.book-btn__main { font-family: var(--serif); font-size: 1.15rem; letter-spacing: 0.04em; }
.book-btn__sub { font-size: 0.78rem; color: var(--kusa); }
.book-btn--line { background: #06c755; border-color: #06c755; }
.book-btn--line .book-btn__main { color: #fff; }
.book-btn--tel .book-btn__main { color: var(--matsu); }

/* form */
.form-wrap {
  max-width: 820px;
  margin: 0 auto;
  background: var(--white);
  border-radius: var(--radius);
  padding: clamp(24px, 4vw, 44px);
  box-shadow: var(--shadow);
}
.form-wrap__title { font-size: 1.3rem; text-align: center; letter-spacing: 0.06em; }
.form-note {
  text-align: center;
  font-size: 0.86rem;
  color: #6b6353;
  background: var(--sand);
  padding: 10px 14px;
  border-radius: var(--radius);
  margin: 14px 0 26px;
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form label { display: block; }
.form label > span { display: block; font-size: 0.88rem; margin-bottom: 6px; font-weight: 500; }
.form label > span i { color: #b5502f; font-style: normal; margin-left: 3px; }
.form input, .form textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #d8cdb6;
  border-radius: var(--radius);
  font-family: var(--sans);
  font-size: 16px;
  background: var(--washi);
  color: var(--sumi);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form input:focus, .form textarea:focus {
  outline: none;
  border-color: var(--matsu);
  box-shadow: 0 0 0 3px rgba(64, 84, 65, 0.14);
}
.form__full { margin-bottom: 18px; }
.form__submit { width: 100%; margin-top: 6px; }
.form__status { text-align: center; margin: 14px 0 0; font-size: 0.92rem; min-height: 1.2em; font-weight: 500; }
.form__status.ok { color: var(--matsu); }
.form__status.err { color: #b5502f; }
.form__disclaimer { text-align: center; font-size: 0.8rem; color: #8a8271; margin: 12px 0 0; }

.form-alt {
  max-width: 820px;
  margin: 24px auto 0;
  text-align: center;
}
.form-alt__mail { font-family: var(--serif-en); font-size: 1.05rem; color: var(--matsu); letter-spacing: 0.04em; }
.sns { display: flex; gap: 18px; justify-content: center; margin-top: 12px; }
.sns a {
  font-family: var(--serif-en);
  letter-spacing: 0.06em;
  font-size: 0.9rem;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--kincha);
}

/* ================= フッター ================= */
.footer {
  background: var(--matsu-dark);
  color: #ede7d8;
  padding: clamp(44px, 7vw, 72px) clamp(16px, 4vw, 40px) 30px;
}
.footer__top {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.8fr 1fr 1.2fr;
  gap: clamp(24px, 4vw, 50px);
  align-items: start;
}
.footer__brand img { width: 130px; filter: brightness(0) invert(1); opacity: 0.92; }
.footer__nav { display: flex; flex-direction: column; gap: 12px; }
.footer__nav a { font-family: var(--serif); font-size: 0.98rem; opacity: 0.9; transition: opacity 0.2s; }
.footer__nav a:hover { opacity: 1; color: #fff; }
.footer__contact p { margin: 0 0 8px; font-size: 0.9rem; opacity: 0.9; }
.footer__tel { font-family: var(--serif); font-size: 1.5rem !important; letter-spacing: 0.04em; opacity: 1 !important; }
.footer__contact a { border-bottom: 1px solid rgba(237,231,216,0.4); }
.sns--footer { justify-content: flex-start; margin-top: 14px; }
.sns--footer a { color: #ede7d8; border-color: rgba(237,231,216,0.5); }

.footer__lang {
  max-width: var(--max);
  margin: clamp(30px, 5vw, 48px) auto 0;
  padding-top: 26px;
  border-top: 1px solid rgba(237,231,216,0.22);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  justify-content: center;
}
.footer__lang button {
  background: none;
  border: none;
  color: #ede7d8;
  font-family: var(--serif);
  font-size: 0.92rem;
  letter-spacing: 0.06em;
  cursor: pointer;
  opacity: 0.75;
  transition: opacity 0.2s;
  padding: 4px 6px;
}
.footer__lang button:hover, .footer__lang button.active { opacity: 1; text-decoration: underline; text-underline-offset: 4px; }
.footer__copy {
  text-align: center;
  margin: 26px 0 0;
  font-family: var(--serif-en);
  letter-spacing: 0.14em;
  font-size: 0.8rem;
  opacity: 0.7;
}

/* ================= 幕トランジション ================= */
.curtain {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: var(--washi);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.45s var(--ease), visibility 0.45s;
}
.curtain.active { opacity: 1; visibility: visible; }
.curtain__inner { display: flex; flex-direction: column; align-items: center; gap: 16px; }
.curtain__mark {
  width: 76px;
  opacity: 0;
  transform: translateY(10px);
}
.curtain.active .curtain__mark { animation: markIn 0.6s var(--ease) forwards; }
@keyframes markIn { to { opacity: 0.9; transform: translateY(0); } }
.curtain__line {
  width: 0; height: 2px;
  background: var(--kincha);
}
.curtain.active .curtain__line { animation: lineGrow 0.7s var(--ease) forwards; }
@keyframes lineGrow { from { width: 0; } to { width: 120px; } }

/* ================= スクロール出現 ================= */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* to top */
.to-top {
  position: fixed;
  right: 20px; bottom: 20px;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--matsu);
  color: #fff;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.3s, visibility 0.3s, transform 0.3s;
  z-index: 90;
  box-shadow: 0 6px 16px rgba(64,84,65,0.4);
}
.to-top.show { opacity: 1; visibility: visible; transform: none; }

/* ================= ページヒーロー（詳細ページ） ================= */
.page-hero {
  position: relative;
  height: clamp(320px, 46vh, 480px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}
.page-hero__bg {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  z-index: -2;
}
.page-hero__scrim {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(50,44,37,0.42) 0%, rgba(50,44,37,0.30) 45%, rgba(50,44,37,0.55) 100%);
  z-index: -1;
}
.page-hero__inner {
  color: #fff;
  padding: 90px 20px 20px;
  max-width: 780px;
  text-shadow: 0 2px 18px rgba(30, 26, 22, 0.45);
}
.page-hero__en {
  font-family: var(--serif-en);
  font-style: italic;
  letter-spacing: 0.24em;
  font-size: 0.95rem;
  margin: 0 0 10px;
  opacity: 0.95;
}
.page-hero__title {
  font-size: clamp(1.7rem, 4vw, 2.7rem);
  letter-spacing: 0.1em;
  margin: 0;
}
.page-hero__sub {
  margin: 16px auto 0;
  font-size: clamp(0.92rem, 2vw, 1.05rem);
  letter-spacing: 0.05em;
  max-width: 620px;
}

/* ================= ページ末のご案内 ================= */
.page-outro {
  background: var(--matsu-dark);
  color: #ede7d8;
  text-align: center;
  padding: clamp(48px, 8vw, 88px) clamp(16px, 4vw, 40px);
}
.page-outro__en {
  font-family: var(--serif-en);
  font-style: italic;
  letter-spacing: 0.22em;
  color: var(--kincha);
  margin: 0 0 10px;
}
.page-outro__title { font-size: clamp(1.5rem, 3.4vw, 2.2rem); letter-spacing: 0.08em; color: #fff; }
.page-outro__desc { max-width: 560px; margin: 16px auto 30px; font-size: 0.98rem; opacity: 0.9; }
.page-outro__links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

/* ================= TOPの3ページ入口カード ================= */
.pagelinks {
  max-width: var(--max);
  margin: clamp(40px, 6vw, 64px) auto 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.pagelink {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 4 / 3;
  box-shadow: 0 6px 18px rgba(50,44,37,0.08);
}
.pagelink img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.9s var(--ease);
}
.pagelink::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(50,44,37,0) 40%, rgba(50,44,37,0.62) 100%);
}
.pagelink:hover img { transform: scale(1.06); }
.pagelink__body {
  position: absolute;
  left: 0; right: 0; bottom: 16px;
  z-index: 1;
  text-align: center;
  color: #fff;
  text-shadow: 0 2px 12px rgba(30,26,22,0.5);
}
.pagelink__jp {
  display: block;
  font-family: var(--serif);
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
  letter-spacing: 0.08em;
}
.pagelink__more {
  display: inline-block;
  margin-top: 6px;
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  opacity: 0.92;
  border-bottom: 1px solid rgba(255,255,255,0.7);
  padding-bottom: 1px;
}

/* ページ遷移時のふわっとした表示 */
@keyframes pageIn { from { opacity: 0; } to { opacity: 1; } }
body { animation: pageIn 0.5s var(--ease) both; }

/* ================= レスポンシブ ================= */
@media (max-width: 1000px) {
  .about__body, .feature, .access { grid-template-columns: 1fr; }
  .feature--reverse .feature__media { order: 0; }
  .footer__top { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 860px) {
  :root { --header-h: 64px; }

  /*
    スクロール後の backdrop-filter は、fixed のメニューを
    ヘッダーの高さに閉じ込めてしまうため、スマホでは使わない。
    これで、どの位置からメニューを開いても正しく表示される。
  */
  .header.scrolled { backdrop-filter: none; }

  .hamburger { display: flex; }

  .nav {
    position: fixed;
    /* 画面右側から開くメニュー（全画面にはしない） */
    inset: 0 0 0 auto;
    width: min(86vw, 360px);
    background: rgba(247, 242, 232, 0.98);
    backdrop-filter: blur(8px);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 22px;
    padding: 40px 34px;
    transform: translateX(100%);
    transition: transform 0.4s var(--ease);
    box-shadow: -10px 0 30px rgba(50,44,37,0.12);
    overflow-y: auto;
    z-index: 1;
  }
  .nav.open { transform: translateX(0); }
  /* メニューパネルは明るい背景なので、最上部でも文字は濃い色に固定 */
  .header:not(.scrolled) .nav__link { color: var(--sumi); text-shadow: none; }
  .header:not(.scrolled) .nav__link--book { color: #fff; }
  .header:not(.scrolled) .lang__btn {
    color: var(--sumi);
    border-color: rgba(115, 132, 107, 0.5);
    background: rgba(255, 252, 246, 0.6);
  }
  .header:not(.scrolled) .lang__btn.active { color: #fff; }
  .nav__link {
    font-family: var(--serif);
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: 0.07em;
  }
  .nav__link--book { width: 100%; text-align: center; padding: 14px; }
  .lang { flex-wrap: wrap; margin: 10px 0 0; }
  .lang__btn { font-family: var(--serif); font-size: 0.9rem; padding: 8px 12px; }
  /* メニューを開いたときも、右上の×で必ず閉じられるようにする */
  .hamburger { position: relative; z-index: 2; }

  .gateway__grid { grid-template-columns: repeat(2, 1fr); }
  .rooms { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .plans { grid-template-columns: 1fr; }
  .area-grid { grid-template-columns: 1fr; }
  .book-buttons { grid-template-columns: 1fr; }
  .accordion__body { grid-template-columns: 1fr; }
  .hero__media.shrink { inset: 74px 14px 40px; }
}

@media (max-width: 520px) {
  body { font-size: 15.5px; }
  .gateway__grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .rooms { grid-template-columns: 1fr; }
  .gallery, .gallery--3 { grid-template-columns: 1fr 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr; }
  .hero__copy { line-height: 1.8; }
  .pagelinks { grid-template-columns: 1fr; }
  .page-outro__links { flex-direction: column; }
  .page-outro__links .btn { width: 100%; }
}

/* ================= 動きを減らす設定 ================= */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .hero__media, .hero__media.shrink { transition: none; }
  .reveal { opacity: 1; transform: none; }
}