:root {
  --bg: #0a0a0a;
  --bg-alt: #1a1a1a;
  --panel: rgba(255, 255, 255, 0.05);
  --panel-strong: rgba(255, 255, 255, 0.08);
  --accent: #c9a84c;
  --accent-light: #e8d48b;
  --text: #f5f5f5;
  --text-sub: #999999;
  --border: rgba(201, 168, 76, 0.28);
  --line: rgba(201, 168, 76, 0.6);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  --font-display: "Playfair Display", serif;
  --font-serif: "Cormorant Garamond", serif;
  --font-sans: "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  --shell: min(1200px, calc(100vw - 32px));
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(201, 168, 76, 0.14), transparent 24%),
    radial-gradient(circle at right center, rgba(255, 255, 255, 0.05), transparent 18%),
    linear-gradient(180deg, #090909, #0a0a0a 32%, #111111);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.7;
}

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

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

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.shell {
  width: var(--shell);
  margin: 0 auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  transition: background 180ms ease, border-color 180ms ease, backdrop-filter 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(8, 8, 8, 0.88);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(14px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  gap: 2px;
}

.brand__en,
.hero__title,
.subhero h1,
.section-title,
.footer-brand {
  font-family: var(--font-display);
}

.brand__en {
  color: var(--accent);
  font-size: 1.35rem;
  letter-spacing: 0.24em;
}

.brand__ja {
  color: var(--text-sub);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
}

.menu-toggle {
  width: 44px;
  height: 44px;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  padding: 0;
  border: 0;
  background: transparent;
}

.menu-toggle span {
  width: 22px;
  height: 1px;
  margin: 0 auto;
  background: var(--accent);
}

.site-nav {
  position: absolute;
  top: 72px;
  left: 16px;
  right: 16px;
  display: none;
  flex-direction: column;
  gap: 12px;
  padding: 18px;
  background: rgba(8, 8, 8, 0.96);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.site-nav.is-open {
  display: flex;
}

.site-nav a {
  color: var(--text-sub);
  font-size: 0.8rem;
  letter-spacing: 0.24em;
}

.site-nav a.is-active,
.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

.hero,
.subhero {
  position: relative;
  overflow: hidden;
}

.hero {
  min-height: 100svh;
  background:
    linear-gradient(115deg, rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0.18)),
    var(--hero-image) center / cover no-repeat;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -20% 50%;
  height: 420px;
  background:
    linear-gradient(180deg, rgba(201, 168, 76, 0.14), transparent),
    var(--hero-backdrop) center / cover no-repeat;
  opacity: 0.28;
  transform: translateX(-50%);
  filter: saturate(0) blur(2px);
}

.hero__veil,
.subhero__veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.74)),
    radial-gradient(circle at top center, rgba(201, 168, 76, 0.18), transparent 30%);
}

.hero__inner,
.subhero__inner {
  position: relative;
  z-index: 1;
}

.hero__inner {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero__title {
  margin: 12px 0 8px;
  font-size: clamp(3.5rem, 16vw, 7rem);
  letter-spacing: 0.22em;
}

.hero__sub {
  margin: 0;
  color: rgba(245, 245, 245, 0.92);
  font-family: var(--font-serif);
  font-size: clamp(1rem, 4vw, 1.45rem);
  letter-spacing: 0.14em;
}

.hero__actions,
.social-links,
.footer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero__actions {
  margin-top: 28px;
  justify-content: center;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 0.75rem;
  letter-spacing: 0.42em;
  text-transform: uppercase;
}

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 28px;
  width: 24px;
  height: 48px;
  transform: translateX(-50%);
}

.scroll-cue span {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 1px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent), transparent);
}

.scroll-cue::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 10px;
  height: 10px;
  border-right: 1px solid var(--accent);
  border-bottom: 1px solid var(--accent);
  transform: translateX(-50%) rotate(45deg);
  animation: float-arrow 1.6s infinite;
}

.section {
  padding: 84px 0;
}

.section--alt {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01)), var(--bg-alt);
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 32px;
}

.section-title {
  margin: 14px 0 0;
  font-size: clamp(2rem, 6vw, 3.4rem);
  line-height: 1.05;
}

.section-note,
.section-copy p,
.footer-copy,
.footer-details,
.price-row span,
.meta-panel p,
.floor-card p,
.guide-card li,
.recruit-card p,
.step-card p,
.form-note {
  color: var(--text-sub);
}

.divider {
  display: inline-block;
  width: 78px;
  height: 1px;
  margin-top: 16px;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
}

.feature-grid,
.access-preview,
.access-layout,
.guide-grid,
.contact-grid,
.recruit-grid {
  display: grid;
  gap: 28px;
}

.concept-visual {
  display: grid;
  gap: 16px;
}

.concept-visual img,
.floor-card img,
.gallery-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.concept-visual img,
.gallery-card,
.access-card,
.price-card,
.meta-panel,
.floor-card,
.guide-card,
.recruit-card,
.contact-panel,
.step-card,
.social-card,
.cast-card,
.contact-form {
  border: 1px solid var(--border);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.concept-visual img:first-child {
  min-height: 260px;
}

.concept-visual img:last-child {
  min-height: 200px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 4px;
  border: 1px solid transparent;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

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

.button--gold {
  background: linear-gradient(135deg, #ad8630, var(--accent), var(--accent-light));
  color: #131313;
  box-shadow: 0 0 0 rgba(232, 212, 139, 0.2);
}

.button--gold:hover,
.button--gold:focus-visible {
  box-shadow: 0 0 20px rgba(232, 212, 139, 0.22);
}

.button--ghost {
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
}

.button--line {
  background: linear-gradient(135deg, #36c95f, #1fb84f);
  color: #ffffff;
}

.button--large {
  min-height: 58px;
  padding: 0 28px;
  gap: 10px;
}

.cast-grid,
.gallery-grid,
.price-grid,
.floor-grid,
.step-grid,
.social-strip {
  display: grid;
  gap: 16px;
}

.cast-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.cast-card {
  position: relative;
  aspect-ratio: 0.82;
  overflow: hidden;
}

.cast-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cast-card__overlay {
  position: absolute;
  inset: auto 0 0;
  padding: 18px 14px 14px;
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.86));
}

.cast-card__overlay span {
  font-family: var(--font-serif);
  font-size: 1.3rem;
}

.cast-toggle {
  margin: 28px auto 0;
  display: flex;
}

.gallery-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gallery-card {
  padding: 0;
  overflow: hidden;
  aspect-ratio: 1;
}

.gallery-card--wide {
  grid-column: span 2;
  aspect-ratio: 1.55;
}

.gallery-card img {
  transition: transform 260ms ease;
}

.gallery-card:hover img,
.gallery-card:focus-visible img {
  transform: scale(1.04);
}

.access-card,
.price-card,
.meta-panel,
.guide-card,
.recruit-card,
.contact-panel,
.step-card {
  padding: 24px;
}

.detail-list {
  display: grid;
  gap: 14px;
}

.detail-list div {
  display: grid;
  gap: 4px;
}

.detail-list dt {
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
}

.detail-list dd {
  margin: 0;
}

.map-frame {
  width: 100%;
  min-height: 320px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.section-link {
  display: inline-flex;
  margin-top: 18px;
  color: var(--accent-light);
  letter-spacing: 0.12em;
}

.social-strip {
  grid-template-columns: repeat(1, minmax(0, 1fr));
}

.social-card {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.social-card strong {
  font-family: var(--font-serif);
  font-size: 1.45rem;
}

.social-card--line {
  background:
    linear-gradient(135deg, rgba(54, 201, 95, 0.18), rgba(0, 0, 0, 0.12)),
    var(--panel);
}

.subhero {
  min-height: 340px;
  background:
    linear-gradient(115deg, rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0.32)),
    var(--subhero-image) center / cover no-repeat;
}

.subhero__inner {
  min-height: 340px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.subhero h1 {
  margin: 14px 0 8px;
  font-size: clamp(3rem, 10vw, 4.8rem);
  letter-spacing: 0.18em;
}

.subhero p:last-child {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.2rem;
}

.price-grid,
.meta-panels,
.floor-grid,
.guide-grid,
.step-grid {
  grid-template-columns: repeat(1, minmax(0, 1fr));
}

.price-card__kicker,
.meta-panel h3,
.guide-card h3,
.floor-card h3,
.recruit-card h3,
.contact-panel h3 {
  margin: 0 0 16px;
  color: var(--accent);
  font-family: var(--font-serif);
  font-size: 1.6rem;
}

.price-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.price-row:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.price-row strong,
.price-row b,
.recruit-rate {
  color: var(--text);
}

.meta-panels {
  display: grid;
  gap: 16px;
  margin-top: 16px;
}

.floor-card__body {
  padding: 20px;
}

.guide-list,
.benefit-list {
  margin: 0;
  padding-left: 18px;
}

.guide-list--bullet {
  list-style: disc;
}

.recruit-rate {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 7vw, 3rem);
}

.benefit-list {
  display: grid;
  gap: 10px;
  margin-bottom: 24px;
}

.step-card span {
  display: block;
  color: var(--accent);
  letter-spacing: 0.22em;
}

.section-cta {
  margin-top: 28px;
}

.contact-panel--line {
  background:
    radial-gradient(circle at top right, rgba(54, 201, 95, 0.22), transparent 26%),
    var(--panel);
}

.form-shell {
  max-width: 900px;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 24px;
}

.contact-form label {
  display: grid;
  gap: 8px;
}

.contact-form span {
  color: var(--accent);
  font-size: 0.84rem;
  letter-spacing: 0.12em;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.site-footer {
  padding: 44px 0 88px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  gap: 24px;
}

.footer-brand {
  margin: 0;
  color: var(--accent);
  font-size: 2rem;
  letter-spacing: 0.2em;
}

.footer-copy {
  margin: 10px 0 0;
}

.footer-details p,
.footer-bottom {
  margin: 0;
}

.footer-details {
  display: grid;
  gap: 6px;
}

.footer-actions {
  align-items: flex-start;
}

.social-links a {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 50%;
}

.footer-bottom {
  margin-top: 24px;
  color: var(--text-sub);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
}

.mobile-bar {
  position: fixed;
  inset: auto 0 0;
  z-index: 40;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  background: rgba(8, 8, 8, 0.96);
  border-top: 1px solid var(--border);
}

.mobile-bar a {
  min-height: 56px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: none;
  place-items: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0.88);
}

.lightbox.is-open {
  display: grid;
}

.lightbox img {
  max-width: min(92vw, 1100px);
  max-height: 86vh;
  object-fit: contain;
}

.lightbox__close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.fade-in-section {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 700ms ease, transform 700ms ease;
}

.fade-in-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes float-arrow {
  0%,
  100% {
    transform: translate(-50%, 0) rotate(45deg);
  }
  50% {
    transform: translate(-50%, 8px) rotate(45deg);
  }
}

@media (min-width: 768px) {
  .site-nav {
    position: static;
    display: flex;
    flex-direction: row;
    gap: 20px;
    padding: 0;
    background: transparent;
    border: 0;
    box-shadow: none;
  }

  .menu-toggle,
  .mobile-bar {
    display: none;
  }

  .section {
    padding: 110px 0;
  }

  .feature-grid,
  .access-preview,
  .contact-grid,
  .recruit-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: center;
  }

  .gallery-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .gallery-card--wide {
    grid-column: span 2;
    grid-row: span 2;
    aspect-ratio: auto;
  }

  .cast-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .price-grid,
  .floor-grid,
  .social-strip,
  .step-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .meta-panels,
  .guide-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .access-layout {
    grid-template-columns: 0.9fr 1.1fr;
  }

  .footer-grid {
    grid-template-columns: 1.2fr 1fr auto;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .site-header__inner {
    min-height: 84px;
  }

  .hero__inner {
    align-items: flex-start;
    text-align: left;
  }

  .hero__actions {
    justify-content: flex-start;
  }

  .concept-visual {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: end;
  }

  .concept-visual img:first-child {
    min-height: 480px;
  }

  .concept-visual img:last-child {
    min-height: 320px;
    transform: translateY(36px);
  }

  .guide-grid,
  .contact-grid {
    gap: 32px;
  }
}