/* ===== Variables ===== */
:root {
  --color-bg: #0a0a0f;
  --color-surface: #111118;
  --color-surface2: #16161f;
  --color-turquoise: #00d4d4;
  --color-pink: #ff2d78;
  --color-text: #e8e8f0;
  --color-muted: #666680;
  --color-border: rgba(255,255,255,0.07);
  --grad: linear-gradient(135deg, var(--color-turquoise), var(--color-pink));
  --font-en: 'Poppins', sans-serif;
  --font-ja: 'Noto Sans JP', sans-serif;
  --transition: 0.3s ease;
  --radius: 12px;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-ja);
  font-size: 1rem;
  line-height: 1.8;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ===== Container ===== */
.container {
  width: min(1100px, 92%);
  margin-inline: auto;
}

/* ===== Header ===== */
#main-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 0;
  transition: background var(--transition), padding var(--transition), backdrop-filter var(--transition);
}
#main-header.scrolled {
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(12px);
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
}
.nav-container {
  display: flex;
  align-items: center;
  gap: 32px;
}
.logo {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: 0.08em;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  gap: 28px;
  margin-left: auto;
}
.nav-links a {
  font-family: var(--font-en);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--color-muted);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--color-turquoise); }

/* Hamburger */
#menu-toggle { display: none; }
.menu-btn { display: none; }

/* ===== Hero ===== */
.hero {
  position: relative;
  height: 100svh;
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  animation: heroZoom 20s ease-in-out infinite alternate;
}
@keyframes heroZoom {
  from { transform: scale(1.05); }
  to   { transform: scale(1.12); }
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10,10,15,0.55) 0%,
    rgba(10,10,15,0.45) 50%,
    rgba(10,10,15,0.85) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 1;
}
.hero-sub {
  font-family: var(--font-en);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--color-turquoise);
  margin-bottom: 16px;
  animation: floatY 6s ease-in-out infinite;
}
.hero-title {
  font-family: var(--font-en);
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.02em;
  margin-bottom: 20px;
  animation: floatY 6s ease-in-out infinite 0.3s;
}
.hero-title em {
  font-style: normal;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.amp {
  color: var(--color-pink);
  -webkit-text-fill-color: var(--color-pink);
}
.hero-catch {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: var(--color-muted);
  margin-bottom: 32px;
  animation: floatY 6s ease-in-out infinite 0.6s;
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  animation: floatY 6s ease-in-out infinite 0.9s;
}
.badge {
  font-family: var(--font-en);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  padding: 6px 14px;
  border-radius: 100px;
  border: 1px solid var(--color-turquoise);
  color: var(--color-turquoise);
}
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-6px); }
}

/* Scroll hint */
.hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}
.hero-scroll-hint span {
  display: block;
  width: 1px;
  height: 50px;
  background: var(--grad);
  margin: 0 auto;
  animation: scrollLine 1.8s ease-in-out infinite;
  transform-origin: top;
}
@keyframes scrollLine {
  0%   { transform: scaleY(0); opacity: 1; }
  100% { transform: scaleY(1); opacity: 0; }
}

/* ===== Section Common ===== */
section { padding: 100px 0; }
.section-header { margin-bottom: 60px; }
.section-label {
  font-family: var(--font-en);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 10px;
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: 0.04em;
}

/* ===== Concept ===== */
.concept { background: var(--color-surface); }
.concept-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.concept-text p {
  color: var(--color-muted);
  margin-bottom: 20px;
  font-size: 0.95rem;
}
.concept-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}
.concept-tags span {
  font-family: var(--font-en);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  padding: 5px 14px;
  border-radius: 100px;
  background: rgba(0,212,212,0.08);
  border: 1px solid rgba(0,212,212,0.25);
  color: var(--color-turquoise);
}
.concept-visual img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: var(--radius);
  filter: brightness(0.9);
}

/* ===== Menu Cards ===== */
.menu-section { background: var(--color-bg); }
.menu-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  background: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,212,212,0.08);
}
.card-img {
  height: 220px;
  overflow: hidden;
}
.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.card:hover .card-img img { transform: scale(1.05); }
.card-body { padding: 24px; }
.card-icon { font-size: 1.5rem; margin-bottom: 10px; }
.card-body h3 {
  font-family: var(--font-en);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-text);
}
.card-body p {
  font-size: 0.87rem;
  color: var(--color-muted);
  line-height: 1.7;
}
.card-price {
  font-family: var(--font-en);
  font-size: 0.78rem !important;
  font-weight: 600;
  margin-top: 14px !important;
  color: var(--color-pink) !important;
}

/* ===== Gallery ===== */
.gallery-section { background: var(--color-surface); }
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.gallery-item {
  overflow: hidden;
  border-radius: 8px;
  aspect-ratio: 1 / 1;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.gallery-item:hover img { transform: scale(1.06); }

@media (max-width: 768px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== Space ===== */
.space-section { background: var(--color-surface2); }
.space-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.space-visual img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: var(--radius);
}
.space-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.space-list li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.list-icon { font-size: 1.4rem; flex-shrink: 0; line-height: 1; }
.space-list strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 4px;
  color: var(--color-text);
}
.space-list p { font-size: 0.87rem; color: var(--color-muted); margin: 0; }

/* ===== Access ===== */
.access { background: var(--color-bg); }
.access-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.info-table { width: 100%; border-collapse: collapse; }
.info-table tr { border-bottom: 1px solid var(--color-border); }
.info-table th, .info-table td { padding: 16px 0; vertical-align: top; }
.info-table th {
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-turquoise);
  width: 110px;
  white-space: nowrap;
}
.info-table td { font-size: 0.9rem; color: var(--color-muted); line-height: 1.7; }
.info-table td a { color: var(--color-text); }
.info-table td a:hover { color: var(--color-turquoise); }
.info-table small { font-size: 0.8rem; color: var(--color-muted); }
.access-map iframe {
  border-radius: var(--radius);
  width: 100%;
  height: 420px;
  filter: invert(0.9) hue-rotate(180deg);
}

/* ===== Footer ===== */
#footer {
  padding: 60px 0 40px;
  border-top: 1px solid var(--color-border);
  text-align: center;
}
.footer-logo {
  font-family: var(--font-en);
  font-size: 1.6rem;
  font-weight: 700;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}
.footer-address {
  font-size: 0.82rem;
  color: var(--color-muted);
  margin-bottom: 20px;
}
.footer-copy { font-size: 0.75rem; color: var(--color-muted); }

/* ===== Page Top ===== */
#page-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 50;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--grad);
  border: none;
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity var(--transition), transform var(--transition);
}
#page-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* ===== Fade-in Animation ===== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-in:nth-child(2) { transition-delay: 0.1s; }
.fade-in:nth-child(3) { transition-delay: 0.2s; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  section { padding: 70px 0; }

  /* Nav */
  .menu-btn {
    display: flex;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    margin-left: auto;
    z-index: 200;
    padding: 4px;
  }
  .menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
  }
  #menu-toggle:checked ~ .menu-btn span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  #menu-toggle:checked ~ .menu-btn span:nth-child(2) { opacity: 0; }
  #menu-toggle:checked ~ .menu-btn span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .nav-links {
    position: fixed;
    inset: 0;
    background: rgba(10,10,15,0.97);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 36px;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
    margin-left: 0;
  }
  #menu-toggle:checked ~ .nav-links { opacity: 1; pointer-events: auto; }
  .nav-links a { font-size: 1.1rem; color: var(--color-text); }

  /* Grids → single column */
  .concept-grid,
  .space-grid,
  .access-grid { grid-template-columns: 1fr; gap: 36px; }

  .menu-cards { grid-template-columns: 1fr; gap: 20px; }

  .concept-visual img,
  .space-visual img { height: 260px; }

  .access-map iframe { height: 300px; }
}