:root {
  --indigo: #003f8f;
  --indigo-soft: #074fa8;
  --indigo-card: #0a5cbc;
  --white: #ffffff;
  --muted: rgba(255, 255, 255, 0.76);
  --line: rgba(255, 255, 255, 0.16);
  --accent: #f4c95d;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--indigo);
  color: var(--white);
  font-family: "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  line-height: 1.8;
}

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

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

.hero {
  min-height: 100vh;
  position: relative;
  background:
    linear-gradient(90deg, rgba(0, 63, 143, 0.92), rgba(0, 63, 143, 0.54)),
    url("images/IMG_3973.jpg") center / cover no-repeat;
}

.nav {
  width: 100%;
  padding: 22px 6%;
  position: absolute;
  inset: 0 0 auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  z-index: 2;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.04em;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
  color: var(--muted);
  font-size: 0.92rem;
}

.nav-links a:hover {
  color: var(--white);
}

.language-switch {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.language-switch a,
.language-more summary {
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.language-switch a:hover,
.language-switch a.active,
.language-more summary:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
}

.language-more {
  position: relative;
}

.language-more summary {
  display: block;
  cursor: pointer;
  list-style: none;
}

.language-more summary::-webkit-details-marker {
  display: none;
}

.language-menu {
  min-width: 150px;
  padding: 8px;
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  z-index: 10;
  display: grid;
  gap: 6px;
  background: rgba(0, 63, 143, 0.96);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.24);
}

.language-menu a {
  display: block;
  text-align: left;
}

.hero-content {
  min-height: 100vh;
  width: min(980px, 100%);
  padding: 150px 6% 90px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.eyebrow,
.section-kicker {
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.hero .eyebrow {
  white-space: nowrap;
}

h1 {
  max-width: 860px;
  font-size: clamp(2.7rem, 7vw, 5.9rem);
  line-height: 1.08;
  letter-spacing: 0.01em;
  margin-bottom: 24px;
}

html[lang="ja"] h1 {
  white-space: nowrap;
}

h2 {
  font-size: clamp(1.8rem, 3vw, 3rem);
  line-height: 1.35;
}

.lead {
  max-width: 720px;
  color: var(--muted);
  font-size: 1.1rem;
  margin-bottom: 34px;
}

.hero-actions,
.reservation-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 26px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #00326f;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
}

.section {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: 90px 6%;
}

.section-heading {
  margin-bottom: 34px;
}

.section-heading.centered {
  text-align: center;
}

.intro {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 48px;
  align-items: start;
}

.intro-text {
  color: var(--muted);
  font-size: 1.02rem;
}

.intro-text p + p {
  margin-top: 18px;
}

.experience-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.experience-card {
  min-height: 220px;
  padding: 26px;
  background: linear-gradient(145deg, var(--indigo-card), rgba(16, 47, 87, 0.56));
  border: 1px solid var(--line);
  border-radius: 8px;
}

.experience-card span {
  color: var(--accent);
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  margin-bottom: 40px;
  text-transform: uppercase;
}

.experience-card h3 {
  font-size: 1.35rem;
  margin-bottom: 10px;
}

.experience-card p {
  color: var(--muted);
}

.stay {
  width: min(1180px, 100%);
}

.stay-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding: 42px;
  background: var(--indigo-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.stay-panel p {
  color: var(--muted);
}

.price-box {
  padding: 28px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.price-box p {
  color: var(--accent);
  font-weight: 700;
}

.price-box strong {
  display: block;
  margin: 8px 0;
  font-size: 1.45rem;
}

.price-box span {
  color: var(--muted);
  font-size: 0.92rem;
}

.facility-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.facility-list span {
  padding: 15px 16px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: center;
}

.special-note {
  margin-top: 18px;
  padding: 22px;
  background: rgba(244, 201, 93, 0.12);
  border: 1px solid rgba(244, 201, 93, 0.34);
  border-radius: 8px;
}

.special-note h3 {
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 1.2rem;
}

.special-note p {
  color: var(--muted);
}

.amenity-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
}

.amenity-list span {
  padding: 15px 16px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: center;
  color: var(--muted);
  font-weight: 700;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.gallery-grid a {
  border-radius: 8px;
  overflow: hidden;
  background: var(--indigo-soft);
  position: relative;
}

.gallery-grid img {
  width: 100%;
  height: 245px;
  object-fit: cover;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.gallery-grid .guest-photo-top img {
  object-position: center top;
}

.gallery-grid span {
  position: absolute;
  left: 12px;
  bottom: 12px;
  padding: 5px 12px;
  background: rgba(0, 63, 143, 0.82);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--white);
  font-size: 0.88rem;
  font-weight: 700;
}

.gallery-grid a:hover img {
  opacity: 0.92;
  transform: scale(1.03);
}

.reservation {
  width: 100%;
  max-width: none;
  background:
    linear-gradient(rgba(0, 63, 143, 0.84), rgba(0, 63, 143, 0.84)),
    url("images/IMG_3345.jpg") center / cover no-repeat;
}

.reservation-inner {
  width: min(900px, 100%);
  margin: 0 auto;
  text-align: center;
}

.reservation-inner p {
  color: var(--muted);
  margin: 16px 0 28px;
}

.reservation-actions {
  justify-content: center;
}

.nearby-panel {
  max-width: 820px;
  margin: 0 auto;
  padding: 28px;
  background: var(--indigo-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.nearby-panel p {
  color: var(--muted);
}

.nearby-panel p + p {
  margin-top: 14px;
}

.nearby-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin: 20px 0;
}

.nearby-list div {
  padding: 18px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.nearby-list h3 {
  margin-bottom: 8px;
  color: var(--white);
  font-size: 1.08rem;
}

.power-spots {
  margin-top: 24px;
}

.power-spots h3 {
  margin-bottom: 14px;
  color: var(--white);
  font-size: 1.08rem;
}

.power-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.power-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.07);
}

.power-card-images {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
}

.power-card-images a {
  display: block;
  overflow: hidden;
}

.power-card-images img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.power-card-images a:hover img {
  opacity: 0.92;
  transform: scale(1.03);
}

.power-card-body {
  padding: 16px;
}

.power-card-body h4 {
  margin-bottom: 8px;
  color: var(--white);
  font-size: 1.02rem;
}

.power-card-body p {
  color: var(--muted);
}

.nearby-map {
  margin-top: 22px;
}

.nearby-map h3 {
  margin-bottom: 10px;
  color: var(--white);
  font-size: 1.08rem;
}

.nearby-map a {
  display: block;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.07);
}

.nearby-map img {
  width: 100%;
  height: auto;
  display: block;
}

.access {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 28px;
  align-items: stretch;
}

.access-info {
  padding: 34px;
  background: var(--indigo-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.access-info p {
  color: var(--muted);
}

.access-note {
  margin: 18px 0;
  padding: 16px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.access-note p + p {
  margin-top: 10px;
}

.access-note strong {
  color: var(--white);
}

.access-info a {
  color: var(--white);
  font-weight: 700;
}

.map {
  min-height: 380px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--line);
}

.map iframe {
  width: 100%;
  height: 100%;
  min-height: 380px;
  border: 0;
  filter: grayscale(0.2) contrast(1.05);
}

.footer {
  padding: 28px 6%;
  border-top: 1px solid var(--line);
  color: var(--muted);
  text-align: center;
}

@media (max-width: 900px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 18px 5%;
  }

  .nav-links {
    justify-content: flex-start;
    gap: 10px 14px;
  }

  .intro,
  .stay-panel,
  .access {
    grid-template-columns: 1fr;
  }

  .experience-grid,
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .facility-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  html,
  body {
    background: var(--indigo);
    color: var(--white);
    line-height: 1.7;
  }

  main,
  .section,
  .intro,
  .stay,
  .amenities,
  .gallery,
  .nearby,
  .access {
    background: var(--indigo);
    color: var(--white);
  }

  .hero {
    min-height: auto;
    background:
      linear-gradient(180deg, rgba(0, 63, 143, 0.96), rgba(0, 63, 143, 0.62)),
      url("images/IMG_3973.jpg") center / cover no-repeat;
  }

  .nav {
    position: relative;
    gap: 14px;
    background: rgba(0, 63, 143, 0.9);
    backdrop-filter: blur(8px);
  }

  .logo {
    font-size: 1rem;
  }

  .nav-links {
    width: 100%;
    display: flex;
    flex-wrap: nowrap;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
  }

  .nav-links a,
  .language-switch a,
  .language-more summary {
    flex: 0 0 auto;
    padding: 6px 10px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--line);
    border-radius: 999px;
    font-size: 0.82rem;
    line-height: 1.3;
  }

  .language-switch {
    width: 100%;
    justify-content: flex-start;
    gap: 8px;
  }

  .language-menu {
    left: 0;
    right: auto;
  }

  .hero-content {
    min-height: auto;
    padding: 58px 5% 64px;
  }

  .eyebrow,
  .section-kicker {
    margin-bottom: 10px;
    font-size: 0.72rem;
    letter-spacing: 0.12em;
  }

  .hero .eyebrow {
    font-size: clamp(0.56rem, 2.35vw, 0.72rem);
    letter-spacing: 0.08em;
  }

  h1 {
    font-size: clamp(1.58rem, 7vw, 2.25rem);
    line-height: 1.18;
    margin-bottom: 18px;
  }

  h2 {
    font-size: 1.55rem;
    line-height: 1.38;
  }

  .lead,
  .intro-text,
  .experience-card p,
  .stay-panel p,
  .special-note p,
  .nearby-panel p,
  .access-info p,
  .facility-list span,
  .amenity-list span,
  .power-card-body p,
  .reservation-inner p,
  .footer {
    color: rgba(255, 255, 255, 0.86);
  }

  .experience-card,
  .stay-panel,
  .special-note,
  .nearby-panel,
  .nearby-list div,
  .power-card,
  .access-info,
  .access-note,
  .facility-list span,
  .amenity-list span,
  .gallery-grid a {
    background: var(--indigo-soft);
    border-color: rgba(255, 255, 255, 0.18);
    color: var(--white);
  }

  h1,
  h2,
  h3,
  h4,
  .logo,
  .nearby-list h3,
  .power-spots h3,
  .nearby-map h3,
  .access-note strong,
  .access-info a {
    color: var(--white);
  }

  .lead,
  .intro-text,
  .experience-card p,
  .stay-panel p,
  .special-note p,
  .nearby-panel p,
  .access-info p {
    font-size: 0.95rem;
  }

  .lead {
    margin-bottom: 26px;
  }

  .section {
    padding: 54px 5%;
  }

  .section-heading {
    margin-bottom: 24px;
  }

  .experience-grid,
  .gallery-grid,
  .facility-list,
  .amenity-list,
  .nearby-list,
  .power-grid {
    grid-template-columns: 1fr;
  }

  .experience-card {
    min-height: auto;
    padding: 20px;
  }

  .experience-card span {
    margin-bottom: 22px;
  }

  .stay-panel,
  .nearby-panel,
  .access-info {
    padding: 22px;
  }

  .facility-list,
  .amenity-list {
    gap: 8px;
  }

  .facility-list span,
  .amenity-list span {
    padding: 12px;
    text-align: left;
  }

  .special-note {
    padding: 18px;
  }

  .gallery-grid img {
    height: 220px;
  }

  .gallery-grid span {
    left: 10px;
    bottom: 10px;
    font-size: 0.82rem;
  }

  .power-card-images img {
    height: 140px;
  }

  .nearby-map img {
    max-height: 420px;
    object-fit: contain;
    background: rgba(255, 255, 255, 0.08);
  }

  .access-note {
    padding: 14px;
  }

  .map,
  .map iframe {
    min-height: 300px;
  }

  .button {
    width: 100%;
    min-height: 46px;
    padding: 11px 18px;
  }
}

@media (max-width: 900px) {
  html,
  body,
  main,
  .section,
  .intro,
  .stay,
  .amenities,
  .gallery,
  .nearby,
  .access,
  .footer {
    background-color: var(--indigo) !important;
    color: var(--white) !important;
  }

  .experience-card,
  .stay-panel,
  .special-note,
  .nearby-panel,
  .nearby-list div,
  .power-card,
  .access-info,
  .access-note,
  .facility-list span,
  .amenity-list span,
  .gallery-grid a {
    background-color: var(--indigo-soft) !important;
    color: var(--white) !important;
    border-color: rgba(255, 255, 255, 0.22) !important;
  }

  h1,
  h2,
  h3,
  h4,
  p,
  span,
  a,
  .lead,
  .intro-text,
  .experience-card p,
  .stay-panel p,
  .special-note p,
  .nearby-panel p,
  .access-info p,
  .facility-list span,
  .amenity-list span,
  .power-card-body p,
  .reservation-inner p {
    color: var(--white) !important;
  }

  .eyebrow,
  .section-kicker,
  .experience-card span,
  .special-note h3 {
    color: var(--accent) !important;
  }
}