:root {
  --bg: #fff9f7;
  --card: #ffffff;
  --ink: #33302e;
  --sub: #7a716c;
  --line: #f0ddd8;
  --accent: #d4577a;
  --accent-soft: #fbe9ee;
  --radius: 16px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP",
    "Segoe UI", system-ui, sans-serif;
  line-height: 1.7;
  font-size: 16.5px;
}

a { color: var(--accent); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 12px 24px;
  background: rgba(255, 249, 247, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.brand {
  font-weight: 800;
  font-size: 20px;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.04em;
}
.brand span { color: var(--accent); font-size: 14px; font-weight: 600; }

.site-header nav {
  margin-left: auto;
  display: flex;
  gap: 20px;
}
.site-header nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
}
.site-header nav a:hover { color: var(--accent); }

.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 16px;
  box-shadow: 0 6px 18px rgba(212, 87, 122, 0.28);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 10px 22px rgba(212, 87, 122, 0.32); }
.btn-small { padding: 8px 18px; font-size: 14.5px; }
.btn-ghost {
  background: var(--card);
  color: var(--accent);
  border: 1px solid var(--accent);
  box-shadow: none;
}
.btn-light { background: #fff; color: var(--accent); box-shadow: 0 6px 18px rgba(0,0,0,0.15); }

.hero {
  max-width: 1080px;
  margin: 0 auto;
  padding: 72px 24px 64px;
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.14em;
  margin: 0 0 14px;
}
.eyebrow.center, h2.center { text-align: center; }

.hero h1 {
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.25;
  margin: 0 0 20px;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
}

.lead { font-size: 18px; color: var(--sub); margin: 0 0 30px; }

.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 36px; }

.hero-stats {
  display: flex;
  gap: 34px;
  list-style: none;
  margin: 0;
  padding: 22px 0 0;
  border-top: 1px dashed var(--line);
}
.hero-stats li { display: flex; flex-direction: column; }
.hero-stats strong { font-size: 21px; color: var(--accent); }
.hero-stats span { font-size: 13px; color: var(--sub); }

.hero-photo { text-align: center; }
.hero-photo img {
  width: min(320px, 80vw);
  height: auto;
  border-radius: 50% 50% 46% 54% / 55% 52% 48% 45%;
  border: 6px solid #fff;
  box-shadow: 0 18px 40px rgba(212, 87, 122, 0.22);
}
.hero-photo-caption { font-size: 17px; margin: 16px 0 0; }
.hero-photo-caption small { color: var(--sub); }

.section {
  max-width: 1080px;
  margin: 0 auto;
  padding: 64px 24px;
}
.section-alt {
  background: var(--card);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  max-width: none;
}
.section-alt > * { max-width: 1080px; margin-left: auto; margin-right: auto; }

.section h2, .cta h2 {
  font-size: clamp(26px, 3.4vw, 36px);
  margin: 0 0 30px;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
}
.section-lead { color: var(--sub); max-width: 640px; }

.cards-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: 0 8px 24px rgba(51, 48, 46, 0.05);
}
.card-icon { font-size: 34px; }
.card h3 { margin: 10px 0 10px; font-size: 19px; }
.card p { margin: 0; color: var(--sub); font-size: 15.5px; }

.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 44px;
}
.about-grid p { margin: 0 0 16px; }

.fact-list { margin: 0; display: flex; flex-direction: column; gap: 14px; }
.fact-list div {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 16px;
}
.fact-list dt { font-size: 12.5px; font-weight: 800; letter-spacing: 0.1em; color: var(--accent); }
.fact-list dd { margin: 2px 0 0; font-size: 15px; }

.lesson-list { display: flex; flex-direction: column; gap: 16px; }
.lesson {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 28px;
}
.lesson h3 { margin: 0 0 8px; font-size: 20px; }
.lesson p { margin: 0 0 8px; }
.lesson-for { color: var(--sub); font-size: 14.5px; margin-bottom: 0; }

.price-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.price-table th, .price-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}
.price-table thead th { background: var(--accent-soft); font-size: 14px; letter-spacing: 0.06em; }
.price-table tbody tr:last-child td { border-bottom: 0; }
.note { color: var(--sub); font-size: 14.5px; }

.rating-summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 28px;
  background: var(--accent-soft);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-bottom: 24px;
}
.rating-big { display: flex; flex-direction: column; }
.rating-big strong { font-size: 42px; line-height: 1; color: var(--accent); }
.rating-big span { color: var(--accent); letter-spacing: 0.2em; }
.rating-big small { color: var(--sub); }
.rating-bars { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 6px 30px; }
.rating-bars li { display: flex; gap: 12px; justify-content: space-between; min-width: 170px; }
.rating-note { flex-basis: 100%; margin: 0; color: var(--sub); font-size: 14.5px; }

.voices { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.voices blockquote {
  margin: 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 12px;
  padding: 22px 24px;
}
.voices blockquote p { margin: 0 0 10px; }
.voices footer { color: var(--sub); font-size: 14px; }

.faq details {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 20px;
  margin-bottom: 12px;
}
.faq summary { font-weight: 700; cursor: pointer; }
.faq details p { margin: 10px 0 2px; color: #55504d; }

.cta {
  text-align: center;
  padding: 72px 24px;
  background: linear-gradient(135deg, #e0688a, #d4577a 55%, #c2496e);
  color: #fff;
}
.cta h2 { margin-bottom: 10px; }
.cta p { margin: 0 0 26px; opacity: 0.92; }

.site-footer {
  text-align: center;
  padding: 34px 24px 44px;
  color: var(--sub);
  font-size: 14.5px;
}
.site-footer p { margin: 4px 0; }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding-top: 44px; }
  .hero-photo { order: -1; }
  .cards-3, .voices, .about-grid { grid-template-columns: 1fr; }
  .site-header nav { display: none; }
  .hero-stats { gap: 22px; flex-wrap: wrap; }
}

/* ---------- Booking flow ---------- */

.hidden { display: none !important; }

.steps {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  counter-reset: step;
}
.steps li {
  padding: 7px 14px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--sub);
  font-size: 14px;
  font-weight: 600;
}
.steps li.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.steps li.done { background: var(--accent-soft); border-color: var(--accent-soft); color: var(--accent); }

.booking-box, .lookup-box {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 8px 24px rgba(51, 48, 46, 0.05);
}
.lookup-box { max-width: 640px; }
.booking-box h3 { margin: 6px 0 14px; font-size: 19px; }

.choice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}
.choice-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 8px; }
.choice {
  text-align: left;
  padding: 14px 16px;
  border: 1.5px solid var(--line);
  border-radius: 12px;
  background: #fff;
  font: inherit;
  font-size: 15.5px;
  cursor: pointer;
  color: var(--ink);
}
.choice:hover { border-color: var(--accent); }
.choice.selected { border-color: var(--accent); background: var(--accent-soft); }
.choice-row { display: flex; justify-content: space-between; align-items: center; }
.choice-row strong { color: var(--accent); }

.field { display: block; margin: 0 0 16px; font-weight: 600; font-size: 15px; }
.field input, .field textarea, .field select {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 11px 13px;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  font: inherit;
  font-weight: 400;
  background: #fff;
  color: var(--ink);
}
.field input:focus, .field textarea:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.slot-grid { display: flex; flex-wrap: wrap; gap: 10px; margin: 6px 0 14px; }
.slot {
  padding: 9px 16px;
  border-radius: 10px;
  border: 1.5px solid var(--line);
  background: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  color: var(--ink);
}
.slot:hover:not(:disabled) { border-color: var(--accent); }
.slot.selected { background: var(--accent); border-color: var(--accent); color: #fff; }
.slot.off, .slot:disabled { opacity: 0.38; cursor: not-allowed; text-decoration: line-through; }

.bk-nav { display: flex; justify-content: space-between; align-items: center; margin-top: 20px; gap: 12px; flex-wrap: wrap; }

.msg { min-height: 1.2em; font-size: 15px; margin: 8px 0; }
.msg-err { color: #b3261e; }
.msg-ok { color: #2e7d32; }

.summary { width: 100%; border-collapse: collapse; margin: 0 0 18px; }
.summary th, .summary td {
  text-align: left;
  padding: 9px 12px;
  border-bottom: 1px solid var(--line);
  font-size: 15.5px;
  vertical-align: top;
}
.summary th { width: 180px; color: var(--sub); font-weight: 600; }

.test-banner {
  background: #fff4d6;
  border: 1px solid #e3c565;
  color: #6d5510;
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 14.5px;
  font-weight: 600;
  margin-bottom: 18px;
}

.my-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 10px 0 16px; }
.lesson .book-course { margin-top: 6px; }

@media (max-width: 640px) {
  .field-row { grid-template-columns: 1fr; }
  .summary th { width: 120px; }
}