:root {
  --bg: #f7f5f0;
  --bg-alt: #efece3;
  --fg: #1c1a17;
  --fg-muted: #6f6a61;
  --line: #d8d3c8;
  --line-strong: #b7b0a2;
  --ink: #232019;
  --font-serif: "Shippori Mincho", "Noto Serif JP", serif;
  --font-serif-body: "Noto Serif JP", serif;
  --font-sans: "Noto Sans JP", sans-serif;
  --header-h: 4.25rem;
  --maxw: 1120px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-serif-body);
  font-weight: 400;
  line-height: 2;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}

body.no-scroll { overflow: hidden; }

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

.preview-banner {
  background: #2b2823;
  color: #efe7d5;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-align: center;
  padding: 0.45rem 1rem;
  line-height: 1.6;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  color: var(--ink);
  transition: background 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}
body[data-page="index"] .site-header {
  margin-bottom: calc(-1 * var(--header-h));
  color: #fff;
}
.site-header.is-scrolled {
  background: rgba(247, 245, 240, 0.95);
  backdrop-filter: blur(6px);
  color: var(--ink);
  box-shadow: 0 1px 0 var(--line);
}

.site-header-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  height: var(--header-h);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  padding: 0 1.5rem;
}

.menu-toggle {
  justify-self: start;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2rem; height: 2rem;
  background: transparent;
  border: 0;
  padding: 0;
  color: inherit;
  cursor: pointer;
}
.menu-toggle span {
  display: block; width: 1.4rem; height: 1px;
  background: currentColor;
  transition: transform 0.28s ease, opacity 0.28s ease;
}
.menu-toggle.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle.is-open span:nth-child(2) { opacity: 0; }
.menu-toggle.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.brand-mark {
  justify-self: center;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  letter-spacing: 0.3em;
  padding-left: 0.3em;
  color: inherit;
  transition: opacity 0.25s ease;
}
.brand-mark:hover { opacity: 0.65; }

.lang-switch { justify-self: end; position: relative; font-family: var(--font-sans); }
.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: transparent;
  border: 0;
  padding: 0.3rem 0;
  color: inherit;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: opacity 0.25s ease;
}
.lang-toggle:hover { opacity: 0.6; }
.lang-caret { font-size: 0.55rem; font-style: normal; transition: transform 0.2s ease; }
.lang-switch.is-open .lang-caret { transform: rotate(180deg); }
.lang-menu {
  position: absolute;
  top: calc(100% + 0.6rem);
  right: 0;
  min-width: 9.5rem;
  background: var(--bg);
  border: 1px solid var(--line);
  box-shadow: 0 14px 30px rgba(40,36,28,0.14);
  display: none;
  flex-direction: column;
  z-index: 50;
}
.lang-switch.is-open .lang-menu { display: flex; }
.lang-menu a {
  padding: 0.6rem 0.95rem;
  font-size: 0.8rem;
  color: var(--fg-muted);
  border-bottom: 1px solid var(--line);
  transition: color 0.2s ease, background 0.2s ease, padding-left 0.2s ease;
}
.lang-menu a:last-child { border-bottom: none; }
.lang-menu a:hover { color: var(--ink); background: rgba(0,0,0,0.03); padding-left: 1.2rem; }
.lang-menu a.is-current { color: var(--ink); }

.nav-panel {
  position: absolute;
  top: 100%;
  left: 0; right: 0;
  z-index: 45;
  display: none;
  flex-direction: column;
  background: var(--bg);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 16px 30px rgba(40,36,28,0.12);
}
.nav-panel.is-open { display: flex; }
.nav-panel a {
  padding: 1.05rem 1.5rem;
  font-family: var(--font-serif);
  font-size: 1rem;
  letter-spacing: 0.14em;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  transition: color 0.2s ease, padding-left 0.2s ease, background 0.2s ease;
}
.nav-panel a:hover { background: var(--bg-alt); padding-left: 2.1rem; }
.nav-panel a.is-active { color: var(--fg-muted); }
.nav-panel .nav-reserve { font-weight: 500; }
.nav-panel .nav-ig {
  display: flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-sans); font-size: 0.82rem; letter-spacing: 0.06em;
  color: var(--fg-muted); border-bottom: 0;
}
.nav-panel .nav-ig:hover { padding-left: 1.5rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  padding: 0.9rem 2.4rem;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  transition: background 0.3s ease, color 0.3s ease, transform 0.3s ease;
  min-width: 15rem;
}
.btn:hover { background: var(--ink); color: var(--bg); transform: translateY(-2px); }
.btn-sm { min-width: 0; padding: 0.7rem 1.6rem; letter-spacing: 0.14em; font-size: 0.78rem; }
.btn-en { font-family: var(--font-sans); letter-spacing: 0.1em; }

.btn-stack { display: flex; flex-direction: column; gap: 0.75rem; align-items: stretch; }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.9rem; justify-content: center; }

.hero {
  position: relative;
  height: calc(100vh - 2.5rem);
  min-height: 34rem;
  max-height: 54rem;
  overflow: hidden;
}
.hero-image {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}

.slideshow { position: relative; width: 100%; height: 100%; overflow: hidden; }
.hero-slideshow { position: absolute; inset: 0; }
.slideshow .slide {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
}
.slideshow .slide.is-active { opacity: 1; }

.hero-scrim {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(18,16,13,0.28) 0%, rgba(18,16,13,0.12) 40%, rgba(18,16,13,0.45) 100%);
  pointer-events: none;
}
@media (prefers-reduced-motion: reduce) {
  .slideshow .slide { transition: none; }
}
.hero-logo {
  position: absolute;
  top: 42%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: #fff;
  text-shadow: 0 2px 24px rgba(0,0,0,0.45);
}
.hero-logo .mark {
  display: block;
  width: auto;
  height: clamp(9rem, 26vw, 14rem);
  margin: 0 auto;
  filter: drop-shadow(0 2px 24px rgba(0,0,0,0.45));
}
.hero-logo .romaji {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.5em;
  padding-left: 0.5em;
  margin: 0.9rem 0 0;
}
.hero-caption {
  position: absolute;
  left: 1.5rem; bottom: 1.5rem;
  margin: 0;
  color: #fff;
  font-family: var(--font-serif);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-shadow: 0 1px 12px rgba(0,0,0,0.5);
}
.hero-actions {
  position: absolute;
  right: 1.5rem; bottom: 1.5rem;
}
.hero-actions .btn {
  min-width: 13rem;
  background: rgba(28,26,23,0.28);
  border-color: rgba(255,255,255,0.85);
  color: #fff;
  backdrop-filter: blur(2px);
}
.hero-actions .btn:hover { background: #fff; color: var(--ink); border-color: #fff; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 6rem 0; }
.section-tight { padding: 4rem 0; }

.eyebrow {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin: 0 0 1rem;
}
.section-heading {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  letter-spacing: 0.14em;
  margin: 0;
  line-height: 1.5;
}
.heading-center { text-align: center; }
.rule {
  width: 3.5rem; height: 1px; background: var(--line-strong);
  margin: 1.75rem auto 2.5rem;
}
.rule-left { margin-left: 0; }

.lead {
  font-size: 1rem;
  color: var(--fg);
  line-height: 2.1;
  max-width: 40rem;
}
.muted { color: var(--fg-muted); }

.split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}
.split .split-media img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
@media (min-width: 800px) {
  .split { grid-template-columns: 1.1fr 0.9fr; gap: 4rem; }
  .split-reverse .split-text { order: 2; }
  .split-reverse .split-media { order: 1; }
}

.band {
  width: 100%;
  height: 60vh;
  min-height: 20rem;
  max-height: 34rem;
  overflow: hidden;
}
.band img { width: 100%; height: 100%; object-fit: cover; }

.features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-top: 3.5rem;
}
.feature { text-align: center; }
.feature .num {
  font-family: var(--font-serif);
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  color: var(--fg-muted);
}
.feature h3 {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.05rem;
  letter-spacing: 0.1em;
  margin: 0.6rem 0 0.75rem;
}
.feature p { font-size: 0.86rem; color: var(--fg-muted); line-height: 1.9; margin: 0; }
@media (min-width: 720px) { .features { grid-template-columns: repeat(3, 1fr); gap: 3rem; } }

.page-head { text-align: center; padding: 4.5rem 0 1rem; }

.pagelinks {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.pagelink {
  position: relative;
  background: var(--bg);
  padding: 2.25rem 1.5rem;
  text-align: center;
  transition: background 0.3s ease;
}
.pagelink:hover { background: var(--bg-alt); }
.pagelink .en {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--fg-muted);
}
.pagelink .ja {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  letter-spacing: 0.14em;
  margin-top: 0.5rem;
}
@media (min-width: 720px) { .pagelinks { grid-template-columns: repeat(3, 1fr); } }

.course {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  padding: 2.75rem 0;
  border-top: 1px solid var(--line);
  align-items: baseline;
}
.course:last-of-type { border-bottom: 1px solid var(--line); }
.course-when {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fg-muted);
}
.course-name {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.35rem;
  letter-spacing: 0.06em;
  margin: 0.4rem 0 0;
}
.course-desc { font-size: 0.9rem; color: var(--fg-muted); margin: 0.75rem 0 0; }
.course-price {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
@media (min-width: 760px) {
  .course { grid-template-columns: 10rem 1fr auto; gap: 2.5rem; }
  .course-price { text-align: right; }
}
.note { font-size: 0.78rem; color: var(--fg-muted); margin-top: 2rem; }

.info-list { border-top: 1px solid var(--line); margin: 0; }
.info-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.35rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.9rem;
}
.info-row dt {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--fg-muted);
  padding-top: 0.15rem;
}
.info-row dd { margin: 0; }
@media (min-width: 640px) { .info-row { grid-template-columns: 9rem 1fr; gap: 1.5rem; } }

.map-embed { border: 1px solid var(--line); margin-top: 2.5rem; filter: grayscale(0.35) contrast(1.03); }

.notebox {
  border: 1px solid var(--line-strong);
  padding: 2.75rem 2rem;
  margin-top: 3rem;
}
.notebox h3 {
  text-align: center;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.1rem;
  letter-spacing: 0.14em;
  margin: 0 0 1.75rem;
}
.notebox p { font-size: 0.86rem; color: var(--fg-muted); line-height: 2; margin: 0 0 1.1rem; }
.notebox p:last-child { margin-bottom: 0; }
.notebox-fees { margin: 1.75rem 0 0; }
.notebox-fees > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.75rem 0;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
}
.notebox-fees dt { margin: 0; color: var(--fg-muted); }
.notebox-fees dd { margin: 0; font-family: var(--font-serif); white-space: nowrap; }

.gallery-main { margin-bottom: 0.6rem; }
.gallery-featured { width: 100%; aspect-ratio: 16/9; object-fit: cover; cursor: zoom-in; }
.gallery-carousel { position: relative; display: flex; align-items: center; gap: 0.6rem; }
.carousel-track {
  display: flex; flex: 1 1 0%; min-width: 0; gap: 0.5rem;
  overflow-x: auto; scroll-snap-type: x mandatory;
  scrollbar-width: none; -ms-overflow-style: none;
}
.carousel-track::-webkit-scrollbar { display: none; }
.carousel-track img {
  flex: 0 0 auto; width: 200px; height: 150px; object-fit: cover;
  scroll-snap-align: start; cursor: zoom-in;
}
@media (min-width: 480px) { .carousel-track img { width: 240px; height: 180px; } }
@media (min-width: 720px) { .carousel-track img { width: 280px; height: 210px; } }
.carousel-btn {
  flex: none; width: 2.4rem; height: 2.4rem; border-radius: 50%;
  border: 1px solid var(--line-strong); background: var(--bg);
  color: var(--fg); font-size: 0.85rem; cursor: pointer;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.carousel-btn:hover { border-color: var(--ink); transform: translateY(-2px); }

.photo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; }
.photo-grid img { width: 100%; aspect-ratio: 4/3; object-fit: cover; cursor: zoom-in; }
@media (min-width: 720px) { .photo-grid { grid-template-columns: repeat(3, 1fr); } }

.lightbox {
  position: fixed; inset: 0; z-index: 100;
  display: none; align-items: center; justify-content: center;
  background: rgba(28,26,23,0.9); padding: 2rem;
}
.lightbox.is-open { display: flex; }
.lightbox-image { max-width: 100%; max-height: 90vh; width: auto; }
.lightbox-close {
  position: absolute; top: 1.25rem; right: 1.5rem;
  width: 2.6rem; height: 2.6rem; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.5);
  background: transparent; color: #fff; font-size: 1.5rem; line-height: 1;
  cursor: pointer; transition: border-color 0.25s ease, transform 0.25s ease;
}
.lightbox-close:hover { border-color: #fff; transform: rotate(90deg); }

.resv-modal {
  position: fixed; inset: 0; z-index: 200;
  display: none; align-items: center; justify-content: center;
  background: rgba(20,18,15,0.55);
  padding: 1.25rem;
}
.resv-modal.is-open { display: flex; }
.resv-modal-box {
  background: var(--bg);
  border: 1px solid var(--line-strong);
  max-width: 40rem; width: 100%;
  max-height: 86vh;
  display: flex; flex-direction: column;
  box-shadow: 0 24px 60px rgba(0,0,0,0.35);
}
.resv-modal-head {
  position: relative;
  padding: 1.6rem 1.75rem 1.1rem;
  border-bottom: 1px solid var(--line);
}
.resv-modal-title {
  font-family: var(--font-serif);
  font-weight: 500; font-size: 1.15rem; letter-spacing: 0.1em;
  margin: 0; text-align: center;
}
.resv-modal-close {
  position: absolute; top: 1rem; right: 1rem;
  width: 2.2rem; height: 2.2rem;
  border: 0; background: transparent;
  color: var(--fg-muted); font-size: 1.4rem; line-height: 1;
  cursor: pointer; transition: color 0.2s ease;
}
.resv-modal-close:hover { color: var(--ink); }
.resv-modal-body { overflow-y: auto; padding: 1.4rem 1.75rem; }
.resv-modal-body dl { margin: 0; }
.resv-modal-body > dl > div { padding: 0.9rem 0; border-bottom: 1px solid var(--line); }
.resv-modal-body > dl > div:first-child { padding-top: 0; }
.resv-modal-body > dl > div:last-child { border-bottom: 0; padding-bottom: 0; }
.resv-modal-body dt {
  font-family: var(--font-sans);
  font-size: 0.74rem; letter-spacing: 0.08em;
  color: var(--fg-muted); margin-bottom: 0.4rem;
}
.resv-modal-body dd { margin: 0; font-size: 0.85rem; line-height: 1.9; color: var(--fg); }
.resv-modal-actions {
  display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap;
  padding: 1.25rem 1.75rem 1.6rem;
  border-top: 1px solid var(--line);
}
.resv-modal-actions .btn { min-width: 0; }
.resv-modal-ok { background: var(--ink); color: var(--bg); }
.resv-modal-ok:hover { background: #000; color: var(--bg); }

.site-footer {
  border-top: 1px solid var(--line);
  padding: 4rem 1.5rem 3.5rem;
  text-align: center;
}
.footer-mark {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  letter-spacing: 0.28em;
  padding-left: 0.28em;
  margin: 0 0 1.75rem;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem 2rem;
  font-family: var(--font-serif);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  margin-bottom: 2rem;
}
.footer-nav a { color: var(--fg); transition: color 0.2s ease; }
.footer-nav a:hover { color: var(--fg-muted); }
.footer-meta { font-family: var(--font-sans); font-size: 0.72rem; color: var(--fg-muted); line-height: 1.9; }
.footer-ig {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2.1rem; height: 2.1rem; border: 1px solid var(--line-strong);
  border-radius: 50%; color: var(--fg-muted); margin-bottom: 1.75rem;
  transition: color 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}
.footer-ig:hover { color: var(--ink); border-color: var(--ink); transform: translateY(-2px); }

.sticky-cta {
  display: none;
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
  background: rgba(247,245,240,0.96);
  backdrop-filter: blur(6px);
  border-top: 1px solid var(--line);
  padding: 0.6rem 1rem;
}
.sticky-cta .btn { flex: 1 1 0; width: auto; min-width: 0; }
@media (max-width: 720px) {
  .sticky-cta { display: flex; gap: 0.5rem; }
  .hero-actions .btn { min-width: 10.5rem; font-size: 0.72rem; padding: 0.75rem 1.2rem; }
  .hero-actions .btn:not(.btn-en) { display: none; }
  .hero-caption { font-size: 0.68rem; bottom: 9.5rem; }
  .hero-actions { bottom: 5.75rem; }
  body { padding-bottom: 5.5rem; }
}

.sec-instagram[hidden] { display: none; }
.insta-embed { min-height: 0; }
.insta-foot { margin-top: 2rem; text-align: center; }

.lang-globe {
  flex: none;
  width: 1.25em;
  height: 1.25em;
  margin-right: .4em;
  vertical-align: -.2em;
}