@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;1,300&family=Noto+Sans+JP:wght@300;400;500&family=Noto+Serif+JP:wght@300;400;600&display=swap');

/* ── リセット & ベース ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --cream:      #f5f0e8;
  --cream-dark: #e8ddd0;
  --terra:      #b05535;
  --terra-dark: #8c3f22;
  --brown:      #1a0f08;
  --brown-mid:  #6b4c3b;
  --sage:       #647a58;
  --sand:       #cfc4b5;
  --white:      #faf6f0;

  --font-serif-ja: 'Noto Serif JP', 'Yu Mincho', serif;
  --font-sans-ja:  'Noto Sans JP', 'Hiragino Sans', sans-serif;
  --font-latin:    'Cormorant Garamond', Georgia, serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans-ja);
  background: var(--cream);
  color: var(--brown);
  line-height: 1.8;
  font-weight: 300;
}

img { display: block; width: 100%; height: 100%; object-fit: cover; }
a { color: inherit; text-decoration: none; }

/* ── ナビゲーション ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 56px;
  height: 68px;
  background: rgba(245,240,232,0.95);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--sand);
  transition: box-shadow 0.3s;
}
.nav.scrolled { box-shadow: 0 1px 24px rgba(26,15,8,0.1); }

.nav-logo {
  font-family: var(--font-latin);
  font-size: 1.35rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--brown);
  display: flex; flex-direction: column; gap: 0;
  line-height: 1.2;
  font-style: italic;
}
.nav-logo span {
  font-family: var(--font-sans-ja);
  font-size: 0.65rem;
  font-weight: 300;
  letter-spacing: 0.22em;
  color: var(--brown-mid);
  font-style: normal;
}

.nav-links {
  display: flex; gap: 40px; list-style: none;
  font-size: 0.75rem; letter-spacing: 0.22em;
}
.nav-links a {
  position: relative; padding-bottom: 4px;
  color: var(--brown);
  transition: color 0.2s;
}
.nav-links a::after {
  content: ''; position: absolute; left: 0; bottom: 0;
  width: 0; height: 1px; background: var(--brown);
  transition: width 0.3s;
}
.nav-links a:hover { color: var(--terra); }
.nav-links a:hover::after { width: 100%; background: var(--terra); }

.nav-menu-btn {
  display: none;
  background: none; border: none; cursor: pointer;
  flex-direction: column; gap: 5px; padding: 8px;
}
.nav-menu-btn span {
  display: block; width: 24px; height: 1.5px;
  background: var(--brown); transition: all 0.3s;
}

/* ── ヒーロー ── */
.hero {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  background: var(--cream);
  padding-top: 72px;
}

.hero-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 70% 60%, rgba(192,106,68,0.1) 0%, transparent 60%),
              radial-gradient(ellipse at 20% 30%, rgba(122,144,104,0.08) 0%, transparent 50%);
}

.hero-circle {
  position: absolute;
  border-radius: 50%;
  opacity: 0.06;
  background: var(--terra);
}
.hero-circle-1 { width: 600px; height: 600px; right: -150px; top: -100px; }
.hero-circle-2 { width: 300px; height: 300px; left: 5%; bottom: 10%; background: var(--sage); }

.hero-content {
  position: relative; z-index: 1;
  text-align: center;
  padding: 0 24px;
  animation: fadeUp 1.2s ease both;
}

.hero-label {
  font-family: var(--font-latin);
  font-size: 0.72rem;
  letter-spacing: 0.55em;
  color: var(--brown-mid);
  margin-bottom: 32px;
  display: block;
  text-transform: lowercase;
}

.hero-title {
  font-family: var(--font-latin);
  font-size: clamp(3.5rem, 9vw, 7rem);
  font-weight: 300;
  font-style: italic;
  line-height: 1.1;
  letter-spacing: 0.04em;
  color: var(--brown);
  margin-bottom: 28px;
}

.hero-title em {
  font-style: italic;
  color: var(--terra);
}

.hero-sub {
  font-size: 0.82rem;
  letter-spacing: 0.22em;
  color: var(--brown-mid);
  margin-bottom: 52px;
  line-height: 2.2;
}

.hero-btns {
  display: flex; gap: 16px; justify-content: center; flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 14px 40px;
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  font-family: var(--font-sans-ja);
  border-radius: 0;
  cursor: pointer;
  transition: all 0.25s;
  text-transform: lowercase;
}
.btn-primary {
  background: var(--brown);
  color: var(--cream);
  border: 1.5px solid var(--brown);
}
.btn-primary:hover { background: var(--terra); border-color: var(--terra); transform: translateY(-2px); }
.btn-outline {
  background: transparent;
  color: var(--brown);
  border: 1.5px solid var(--brown);
}
.btn-outline:hover { border-color: var(--terra); color: var(--terra); transform: translateY(-2px); }

.hero-scroll {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-family: var(--font-latin); font-size: 0.7rem; letter-spacing: 0.3em;
  color: var(--brown-mid); opacity: 0.6;
  animation: fadeUp 1.5s 0.5s ease both;
}
.hero-scroll::after {
  content: ''; width: 1px; height: 40px;
  background: linear-gradient(to bottom, var(--brown-mid), transparent);
  animation: scrollLine 1.8s ease-in-out infinite;
}

/* ── セクション共通 ── */
.section { padding: 100px 48px; }
.section-sm { padding: 64px 48px; }

.section-label {
  font-family: var(--font-latin);
  font-size: 0.72rem;
  letter-spacing: 0.4em;
  color: var(--terra);
  display: block;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-serif-ja);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 400;
  letter-spacing: 0.06em;
  line-height: 1.4;
  margin-bottom: 40px;
}

.section-title span { color: var(--terra); }

.container { max-width: 1100px; margin: 0 auto; }
.container-sm { max-width: 780px; margin: 0 auto; }

/* ── About ── */
.about {
  background: var(--white);
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-img-wrap {
  position: relative;
}

.about-img {
  aspect-ratio: 4/5;
  background: var(--cream-dark);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}

.about-img-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 12px;
  color: var(--brown-mid); font-size: 0.8rem;
  letter-spacing: 0.12em;
}

.about-img-deco {
  position: absolute;
  width: 120px; height: 120px;
  border: 1.5px solid var(--terra);
  border-radius: 50%;
  opacity: 0.3;
  top: -30px; left: -30px;
}

.about-text { }

.about-catch {
  font-family: var(--font-serif-ja);
  font-size: 1.35rem;
  font-weight: 400;
  line-height: 1.9;
  margin-bottom: 32px;
  color: var(--brown);
  border-left: 2px solid var(--terra);
  padding-left: 20px;
}

.about-body {
  font-size: 0.88rem;
  line-height: 2.3;
  color: var(--brown-mid);
  margin-bottom: 32px;
}

.about-tag {
  display: inline-block;
  border: 1px solid var(--sand);
  padding: 4px 14px;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  border-radius: 20px;
  margin: 4px;
  color: var(--brown-mid);
}

/* ── Works ── */
.works { background: var(--cream); }

.works-tabs {
  display: flex; gap: 0;
  border-bottom: 1px solid var(--sand);
  margin-bottom: 48px;
}

.works-tab {
  padding: 12px 32px;
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  cursor: pointer;
  border: none; background: none;
  color: var(--brown-mid);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all 0.2s;
  font-family: var(--font-sans-ja);
}
.works-tab.active { color: var(--terra); border-bottom-color: var(--terra); }
.works-tab:hover { color: var(--terra); }

.works-panel { display: none; }
.works-panel.active { display: block; animation: fadeIn 0.4s ease; }

.works-desc {
  font-family: var(--font-serif-ja);
  font-size: 1.1rem;
  font-weight: 300;
  line-height: 1.9;
  color: var(--brown-mid);
  margin-bottom: 40px;
  max-width: 600px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.gallery-item {
  aspect-ratio: 1;
  background: var(--cream-dark);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
  cursor: pointer;
  transition: transform 0.3s;
}
.gallery-item:hover { transform: scale(1.02); }
.gallery-item:nth-child(4) { grid-column: span 2; aspect-ratio: 2/1; }

.gallery-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; letter-spacing: 0.1em;
  color: var(--brown-mid); opacity: 0.5;
}

.works-more {
  text-align: center; margin-top: 48px;
}

/* ── 分割バナー ── */
.split-banner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 400px;
}

.split-panel {
  position: relative;
  padding: 64px 56px;
  display: flex; flex-direction: column; justify-content: center;
  overflow: hidden;
}
.split-panel-a { background: var(--brown); color: var(--cream); }
.split-panel-b { background: var(--terra); color: var(--white); }

.split-panel-deco {
  position: absolute;
  width: 200px; height: 200px;
  border-radius: 50%;
  opacity: 0.08;
  background: currentColor;
}
.split-panel-a .split-panel-deco { right: -50px; top: -50px; }
.split-panel-b .split-panel-deco { left: -60px; bottom: -60px; }

.split-label {
  font-family: var(--font-latin);
  font-size: 0.7rem; letter-spacing: 0.4em;
  opacity: 0.6; margin-bottom: 12px;
}
.split-title {
  font-family: var(--font-serif-ja);
  font-size: 1.8rem; font-weight: 300;
  letter-spacing: 0.08em;
  line-height: 1.4; margin-bottom: 16px;
}
.split-body {
  font-size: 0.85rem; line-height: 2;
  opacity: 0.8; margin-bottom: 32px;
  max-width: 360px;
}
.split-link {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 0.8rem; letter-spacing: 0.18em;
  border-bottom: 1px solid currentColor;
  padding-bottom: 3px;
  opacity: 0.9;
  transition: opacity 0.2s, gap 0.2s;
}
.split-link:hover { opacity: 1; gap: 16px; }

/* ── ブログ ── */
.blog { background: var(--white); }

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.blog-card {
  border-bottom: 1px solid var(--sand);
  padding-bottom: 28px;
  transition: opacity 0.2s;
}
.blog-card:hover { opacity: 0.75; }

.blog-card-img {
  aspect-ratio: 3/2;
  background: var(--cream-dark);
  margin-bottom: 18px;
  border-radius: 2px;
  overflow: hidden;
}

.blog-card-date {
  font-family: var(--font-latin);
  font-size: 0.72rem; letter-spacing: 0.2em;
  color: var(--terra); margin-bottom: 8px;
}
.blog-card-title {
  font-family: var(--font-serif-ja);
  font-size: 1rem; font-weight: 400;
  line-height: 1.6; margin-bottom: 10px;
}
.blog-card-body {
  font-size: 0.82rem; color: var(--brown-mid);
  line-height: 1.8;
  display: -webkit-box; -webkit-line-clamp: 3;
  -webkit-box-orient: vertical; overflow: hidden;
}

/* ── SNS ── */
.sns { background: var(--cream); text-align: center; }

.sns-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 720px;
  margin: 0 auto 56px;
}

.sns-card {
  background: var(--white);
  border: 1px solid var(--sand);
  border-radius: 2px;
  padding: 36px 32px;
  transition: transform 0.25s, box-shadow 0.25s;
  display: block;
}
.sns-card:hover { transform: translateY(-4px); box-shadow: 0 8px 32px rgba(46,30,20,0.08); }

.sns-icon { font-size: 1.8rem; margin-bottom: 12px; }
.sns-handle {
  font-family: var(--font-latin);
  font-size: 0.95rem; letter-spacing: 0.15em;
  color: var(--brown); margin-bottom: 8px;
}
.sns-desc {
  font-size: 0.8rem; color: var(--brown-mid);
  line-height: 1.7;
}

/* ── フッター ── */
footer {
  background: var(--brown);
  color: rgba(245,240,232,0.5);
  padding: 64px 48px;
  text-align: center;
}

.footer-logo {
  font-family: var(--font-latin);
  font-size: 1.6rem; font-weight: 300;
  font-style: italic;
  color: var(--cream);
  letter-spacing: 0.15em;
  margin-bottom: 4px;
}
.footer-logo-sub {
  font-family: var(--font-sans-ja);
  font-size: 0.65rem; letter-spacing: 0.3em;
  color: rgba(245,240,232,0.35);
  margin-bottom: 28px;
}
.footer-links {
  display: flex; gap: 28px; justify-content: center;
  list-style: none; margin-bottom: 32px;
  font-size: 0.78rem; letter-spacing: 0.15em;
}
.footer-links a { color: rgba(247,242,235,0.5); transition: color 0.2s; }
.footer-links a:hover { color: var(--cream); }
.footer-copy { font-size: 0.72rem; letter-spacing: 0.1em; }

/* ── アニメーション ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; } to { opacity: 1; }
}
@keyframes scrollLine {
  0%,100% { transform: scaleY(1); opacity: 0.6; }
  50%      { transform: scaleY(1.3); opacity: 1; }
}

.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* ── ページ内共通 ── */
.page-hero {
  padding: 140px 48px 80px;
  background: var(--white);
  text-align: center;
}
.page-hero-label {
  font-family: var(--font-latin);
  font-size: 0.72rem; letter-spacing: 0.45em;
  color: var(--terra); margin-bottom: 16px; display: block;
}
.page-hero-title {
  font-family: var(--font-serif-ja);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 300; letter-spacing: 0.1em;
}

/* ── 教室ページ ── */
.class-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-bottom: 56px;
}
.class-info-card {
  background: var(--white);
  border: 1px solid var(--sand);
  padding: 28px 24px;
  border-radius: 2px;
  text-align: center;
}
.class-info-card .label {
  font-family: var(--font-latin);
  font-size: 0.68rem; letter-spacing: 0.35em;
  color: var(--terra); margin-bottom: 10px; display: block;
}
.class-info-card .value {
  font-family: var(--font-serif-ja);
  font-size: 1.2rem; font-weight: 400; line-height: 1.5;
}
.class-info-card .note {
  font-size: 0.75rem; color: var(--brown-mid); margin-top: 6px;
}

.price-table {
  width: 100%; border-collapse: collapse;
  margin-bottom: 40px;
}
.price-table th, .price-table td {
  padding: 14px 20px;
  text-align: left;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--sand);
}
.price-table th {
  background: var(--cream);
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--brown-mid);
  width: 40%;
}

.privilege-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
  margin-bottom: 48px;
}
.privilege-card {
  background: var(--cream);
  border-left: 3px solid var(--terra);
  padding: 24px 28px;
}
.privilege-card h4 {
  font-family: var(--font-serif-ja);
  font-size: 1rem; margin-bottom: 10px; font-weight: 400;
}
.privilege-card p { font-size: 0.85rem; color: var(--brown-mid); line-height: 1.8; }

/* ── ブログページ ── */
.blog-post-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}
.blog-post-card { cursor: pointer; }
.blog-post-img {
  aspect-ratio: 16/9;
  background: var(--cream-dark);
  margin-bottom: 20px; border-radius: 2px; overflow: hidden;
}
.blog-post-meta {
  display: flex; gap: 16px; align-items: center; margin-bottom: 10px;
}
.blog-cat {
  font-size: 0.7rem; letter-spacing: 0.15em;
  background: var(--terra); color: white;
  padding: 2px 10px; border-radius: 1px;
}
.blog-date { font-family: var(--font-latin); font-size: 0.75rem; color: var(--brown-mid); letter-spacing: 0.15em; }
.blog-post-title {
  font-family: var(--font-serif-ja);
  font-size: 1.15rem; font-weight: 400;
  line-height: 1.55; margin-bottom: 12px;
  transition: color 0.2s;
}
.blog-post-card:hover .blog-post-title { color: var(--terra); }
.blog-post-body {
  font-size: 0.83rem; color: var(--brown-mid);
  line-height: 1.9;
  display: -webkit-box; -webkit-line-clamp: 3;
  -webkit-box-orient: vertical; overflow: hidden;
}

/* ── レスポンシブ ── */
@media (max-width: 900px) {
  .nav { padding: 0 24px; }
  .nav-links { display: none; }
  .nav-menu-btn { display: flex; }

  .section, .section-sm { padding: 72px 24px; }
  .about-inner { grid-template-columns: 1fr; gap: 40px; }
  .about-img { aspect-ratio: 3/2; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-item:nth-child(4) { grid-column: span 1; aspect-ratio: 1; }
  .split-banner { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; gap: 24px; }
  .blog-post-grid { grid-template-columns: 1fr; }
  .sns-grid { grid-template-columns: 1fr; max-width: 400px; }
  .privilege-grid { grid-template-columns: 1fr; }
  .page-hero { padding: 120px 24px 60px; }
  footer { padding: 48px 24px; }
  .hero-title { font-size: 2.6rem; }
}