:root {
  --bg: #fbfaf7;
  --bg-alt: #f3f1eb;
  --ink: #3f3c37;
  --ink-soft: #6f6a61;
  --ink-faint: #9a948a;
  --accent: #7c8b7d;
  --accent-deep: #55645a;
  --accent-soft: #e7ece7;
  --line: #e5e1d8;
  --white: #ffffff;
  --radius: 6px;
  --shadow: 0 12px 40px rgba(63, 60, 55, 0.08);
  --serif: "Zen Old Mincho", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --sans: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--sans);
  font-weight: 300;
  color: var(--ink);
  background: var(--bg);
  line-height: 2;
  letter-spacing: 0.03em;
  -webkit-font-smoothing: antialiased;
}

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

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

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

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251, 250, 247, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 16px;
}

.brand {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}

.site-nav ul {
  list-style: none;
  display: flex;
  gap: 8px;
  align-items: center;
}

.site-nav a {
  display: inline-block;
  padding: 6px 14px;
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
  border-radius: 999px;
  transition: color 0.2s, background 0.2s;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--accent-deep);
  background: var(--accent-soft);
}

.site-nav .has-sub {
  position: relative;
}

.submenu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  min-width: 200px;
  padding: 8px;
  display: none;
  flex-direction: column;
  gap: 2px;
}

.site-nav .has-sub:hover .submenu,
.site-nav .has-sub:focus-within .submenu {
  display: flex;
}

.submenu a {
  padding: 10px 14px;
  font-size: 0.85rem;
  border-radius: 4px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--ink);
  transition: transform 0.3s, opacity 0.3s;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-size: cover;
  background-position: center;
  color: var(--white);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(40, 38, 34, 0.42),
    rgba(40, 38, 34, 0.28) 50%,
    rgba(40, 38, 34, 0.55)
  );
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding: 60px 20px;
  max-width: 760px;
}

.hero-en {
  font-family: var(--serif);
  font-size: clamp(1.1rem, 2.6vw, 1.6rem);
  letter-spacing: 0.2em;
  line-height: 1.8;
  opacity: 0.95;
}

.hero-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(2rem, 6vw, 3.4rem);
  letter-spacing: 0.12em;
  line-height: 1.6;
  margin-block: 28px 20px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.25);
}

.hero-sub {
  font-size: clamp(0.95rem, 1.8vw, 1.05rem);
  letter-spacing: 0.15em;
  opacity: 0.92;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 44px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 14px 34px;
  border-radius: 999px;
  font-size: 0.92rem;
  letter-spacing: 0.15em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s;
  font-family: var(--sans);
}

.btn-light {
  background: var(--white);
  color: var(--ink);
}

.btn-light:hover {
  background: var(--accent-soft);
  color: var(--accent-deep);
  transform: translateY(-2px);
}

.btn-ghost {
  border-color: rgba(255, 255, 255, 0.7);
  color: var(--white);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--accent);
  color: var(--white);
}

.btn-accent:hover {
  background: var(--accent-deep);
  transform: translateY(-2px);
}

.btn-outline {
  border-color: var(--accent);
  color: var(--accent-deep);
}

.btn-outline:hover {
  background: var(--accent-soft);
  transform: translateY(-2px);
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  opacity: 0.85;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.hero-scroll::after {
  content: "";
  width: 1px;
  height: 42px;
  background: rgba(255, 255, 255, 0.7);
}

/* ---------- Page hero (subpages) ---------- */
.page-hero {
  background: var(--accent-soft);
  text-align: center;
  padding: 90px 20px 70px;
}

.page-hero .kicker {
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  color: var(--accent-deep);
  margin-bottom: 14px;
}

.page-hero h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.9rem, 4.5vw, 2.6rem);
  letter-spacing: 0.12em;
}

.page-hero p {
  margin-top: 18px;
  color: var(--ink-soft);
  max-width: 620px;
  margin-inline: auto;
}

/* ---------- Sections ---------- */
.section {
  padding: 90px 0;
}

.section-alt {
  background: var(--bg-alt);
}

.section-head {
  text-align: center;
  margin-bottom: 56px;
}

.section-head .kicker {
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  color: var(--accent-deep);
  margin-bottom: 12px;
}

.section-head h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  letter-spacing: 0.12em;
  line-height: 1.6;
}

.section-head p {
  margin-top: 14px;
  color: var(--ink-soft);
  max-width: 640px;
  margin-inline: auto;
}

.lead {
  font-size: 1.02rem;
  color: var(--ink-soft);
}

/* ---------- Story (home intro) ---------- */
.story-block {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  font-size: 1.02rem;
}

.story-block p {
  margin-bottom: 1.6em;
}

.story-block em {
  font-style: normal;
  color: var(--accent-deep);
  font-weight: 500;
}

/* ---------- Split (image + text) ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.split .img-wrap {
  overflow: hidden;
  border-radius: var(--radius);
}

.split .img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  transition: transform 0.6s ease;
}

.split .img-wrap:hover img {
  transform: scale(1.04);
}

.split h3 {
  font-family: var(--serif);
  font-size: 1.5rem;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
  line-height: 1.7;
}

.split p {
  color: var(--ink-soft);
  margin-bottom: 1.4em;
}

.split .note {
  color: var(--ink-faint);
  font-size: 0.85rem;
}

/* ---------- Cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  transition: transform 0.25s, box-shadow 0.25s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.card .num {
  font-family: var(--serif);
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 0.3em;
  margin-bottom: 12px;
}

.card h3 {
  font-family: var(--serif);
  font-size: 1.2rem;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.card p {
  font-size: 0.92rem;
  color: var(--ink-soft);
  text-align: left;
  line-height: 2;
}

.card .card-add {
  display: block;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
  font-size: 0.88rem;
  color: var(--accent-deep);
  text-align: left;
}

/* ---------- Class teaser ---------- */
.teaser-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.teaser {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  min-height: 320px;
  display: flex;
  align-items: flex-end;
}

.teaser img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.teaser:hover img {
  transform: scale(1.05);
}

.teaser::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(30, 28, 24, 0.72), transparent 60%);
}

.teaser .teaser-body {
  position: relative;
  z-index: 1;
  color: var(--white);
  padding: 28px;
  width: 100%;
}

.teaser .teaser-body .kicker {
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  opacity: 0.85;
}

.teaser .teaser-body h3 {
  font-family: var(--serif);
  font-size: 1.25rem;
  letter-spacing: 0.1em;
  margin-block: 8px 6px;
}

.teaser .teaser-body p {
  font-size: 0.85rem;
  opacity: 0.9;
  line-height: 1.9;
}

/* ---------- FAQ ---------- */
.faq {
  max-width: 760px;
  margin-inline: auto;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  margin-bottom: 14px;
  overflow: hidden;
}

.faq-q {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 20px 24px;
  font-family: var(--serif);
  font-size: 1rem;
  letter-spacing: 0.06em;
  color: var(--ink);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.faq-q .icon {
  color: var(--accent);
  font-size: 1.2rem;
  transition: transform 0.3s;
}

.faq-item.open .faq-q .icon {
  transform: rotate(45deg);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-a-inner {
  padding: 0 24px 24px;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

/* ---------- Instagram strip ---------- */
.ig-strip {
  text-align: center;
  padding: 80px 0;
}

.ig-strip .ig-avatars {
  display: flex;
  justify-content: center;
  gap: 18px;
  margin-bottom: 28px;
}

.ig-strip .ig-avatars img {
  width: 130px;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
}

.ig-strip a.ig-handle {
  display: inline-block;
  margin-top: 24px;
  color: var(--accent-deep);
  letter-spacing: 0.12em;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 4px;
}

/* ---------- Price cards (lessons) ---------- */
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.price-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.price-card .pc-img {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

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

.price-card .pc-body {
  padding: 32px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.price-card h3 {
  font-family: var(--serif);
  font-size: 1.2rem;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}

.price-card .pc-tag {
  font-size: 0.78rem;
  color: var(--accent-deep);
  letter-spacing: 0.15em;
  margin-bottom: 16px;
}

.price-card ul {
  list-style: none;
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-bottom: 20px;
}

.price-card ul li {
  padding: 8px 0;
  border-bottom: 1px dashed var(--line);
}

.price-card ul li span {
  color: var(--ink);
}

.price-card .pc-price {
  margin-top: auto;
  text-align: right;
  font-family: var(--serif);
}

.price-card .pc-price .amt {
  font-size: 1.5rem;
  font-weight: 600;
}

.price-card .pc-price .tax {
  font-size: 0.75rem;
  color: var(--ink-faint);
}

.price-card .pc-note {
  font-size: 0.78rem;
  color: var(--ink-faint);
  margin-top: 6px;
}

/* ---------- Course cards (training) ---------- */
.course-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px 32px;
  margin-bottom: 28px;
}

.course-card .cc-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
  padding-bottom: 18px;
  margin-bottom: 20px;
}

.course-card h3 {
  font-family: var(--serif);
  font-size: 1.35rem;
  letter-spacing: 0.1em;
}

.course-card .cc-head .price {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--accent-deep);
  white-space: nowrap;
}

.course-card .cc-desc {
  color: var(--ink-soft);
  margin-bottom: 18px;
}

.course-card .cc-label {
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--accent-deep);
  margin-block: 18px 8px;
}

.course-card .cc-label:first-of-type {
  margin-top: 0;
}

.course-card ul {
  list-style: none;
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.course-card ul li {
  padding: 6px 0 6px 18px;
  position: relative;
}

.course-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.9em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.6;
}

.cc-set {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
  font-family: var(--serif);
  color: var(--accent-deep);
  font-size: 1rem;
}

/* ---------- Contact form ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 60px;
  align-items: start;
}

.contact-info h3 {
  font-family: var(--serif);
  font-size: 1.2rem;
  margin-bottom: 14px;
  letter-spacing: 0.1em;
}

.contact-info p,
.contact-info a {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.contact-info .info-row {
  margin-bottom: 22px;
}

.contact-form {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px 36px;
}

.form-row {
  margin-bottom: 20px;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

label {
  display: block;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
  margin-bottom: 8px;
}

label .req {
  color: var(--accent-deep);
}

input,
select,
textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--bg);
  font-family: var(--sans);
  font-size: 0.95rem;
  color: var(--ink);
  transition: border-color 0.2s;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
}

textarea {
  resize: vertical;
  min-height: 140px;
}

.form-submit {
  text-align: center;
  margin-top: 8px;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
  padding: 70px 0 0;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand .brand {
  margin-bottom: 16px;
}

.footer-brand p {
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 2.1;
}

.footer-col h4 {
  font-family: var(--serif);
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  color: var(--accent-deep);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  color: var(--ink-soft);
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-col ul a:hover {
  color: var(--accent-deep);
}

.footer-social .ig-img {
  width: 120px;
  border-radius: 8px;
  margin-bottom: 14px;
}

.footer-bottom {
  border-top: 1px solid var(--line);
  text-align: center;
  padding: 22px;
  color: var(--ink-faint);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
}

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--accent-deep);
  color: var(--white);
  text-align: center;
  padding: 80px 20px;
}

.cta-band h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.5rem, 3.6vw, 2rem);
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}

.cta-band p {
  opacity: 0.9;
  max-width: 560px;
  margin: 0 auto 32px;
}

/* ---------- PCA logo ---------- */
.pca-logo {
  width: 76px;
  height: 76px;
  object-fit: cover;
  border-radius: 50%;
  display: block;
}

.card .pca-logo {
  margin: 0 auto 14px;
}

.teaser .pca-logo {
  margin: 0 0 12px;
}

.pca-logo-center {
  margin: 0 auto 14px;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .split,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .cards,
  .price-grid,
  .teaser-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(320px, 82vw);
    background: var(--white);
    border-left: 1px solid var(--line);
    padding: 90px 28px 28px;
    transform: translateX(100%);
    transition: transform 0.35s ease;
    box-shadow: -20px 0 60px rgba(63, 60, 55, 0.12);
  }

  .site-nav.open {
    transform: translateX(0);
  }

  .site-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .site-nav a {
    padding: 10px 0;
    font-size: 1rem;
  }

  .submenu {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    padding: 0 0 0 14px;
    display: none;
  }

  .site-nav .has-sub.open .submenu {
    display: flex;
  }
}

@media (max-width: 620px) {
  .section {
    padding: 64px 0;
  }

  .cards,
  .price-grid,
  .teaser-grid {
    grid-template-columns: 1fr;
  }

  .form-grid-2 {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 80vh;
  }
}