/* ===== VARIABLES ===== */
:root {
  --dark:       #2C2218;
  --dark2:      #1A1410;
  --gold:       #C08050;
  --gold-light: #D4A07A;
  --cream:      #FAF6F0;
  --warm:       #EDE4D8;
  --blush:      #F5EDE4;
  --text:       #3A2E26;
  --text-light: #8A7B6E;
  --white:      #FFFFFF;

  --serif: 'Cormorant Garamond', 'Noto Serif JP', Georgia, serif;
  --sans:  'Noto Sans JP', sans-serif;
  --radius: 3px;
  --ease:   cubic-bezier(0.16, 1, 0.3, 1);
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--sans);
  font-weight: 300;
  color: var(--text);
  background: var(--white);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }

/* ===== NAVBAR ===== */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--warm);
  transition: box-shadow 0.3s, border-color 0.3s;
}
#navbar.scrolled {
  box-shadow: 0 2px 20px rgba(44,34,24,0.08);
  border-bottom-color: transparent;
}
.nav-inner {
  max-width: 1200px; margin: 0 auto;
  padding: 0 2.5rem;
  height: 64px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-family: var(--serif);
  font-size: 1.35rem; font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--dark);
}
.nav-logo span { color: var(--gold); }
.nav-links {
  display: flex; align-items: center; gap: 2.5rem;
  list-style: none;
}
.nav-links a {
  font-size: 0.78rem; letter-spacing: 0.1em;
  color: var(--text-light);
  transition: color 0.3s;
}
.nav-links a:hover { color: var(--gold); }
.nav-cta {
  background: var(--gold) !important;
  color: var(--white) !important;
  padding: 0.5rem 1.4rem !important;
  border-radius: var(--radius);
  transition: background 0.3s, transform 0.2s !important;
}
.nav-cta:hover {
  background: var(--gold-light) !important;
  transform: translateY(-1px);
}
.nav-toggle {
  display: none;
  flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 6px;
}
.nav-toggle span {
  display: block; width: 22px; height: 1.5px;
  background: var(--dark);
  transition: all 0.35s var(--ease);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ===== HERO SPLIT ===== */
#hero {
  position: relative;
  min-height: 100svh;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}

/* 左右分割 */
.hero-split {
  position: absolute; inset: 0;
  display: flex;
}
.hero-panel {
  flex: 1;
  overflow: hidden;
  position: relative;
}

/* 各パネル画像（余白でKen Burns用スペース確保） */
.hero-panel-img {
  position: absolute; inset: -8%;
  background-size: cover;
  background-position: center;
  will-change: transform;
}
/* 左パネル：2枚重ねでフェード切り替え */
.panel-left .img-l1 {
  background-image: url('hero-left.png');
  animation: kenBurnsL 10s ease-in-out infinite alternate;
  z-index: 1;
}
.panel-left .img-l2 {
  background-image: url('hero-left2.png');
  animation: kenBurnsL 10s ease-in-out infinite alternate;
  z-index: 2;
  opacity: 0;
  transition: opacity 1.2s ease-in-out;
  filter: brightness(0.65);
}
.panel-left .img-l2.visible {
  opacity: 1;
}
/* 右パネル：2枚重ねでフェード切り替え */
.panel-right .img-r1 {
  background-image: url('hero-right.png');
  background-position: center 30%;
  animation: kenBurnsR 10s ease-in-out infinite alternate;
  animation-delay: -5s;
  z-index: 1;
}
.panel-right .img-r2 {
  background-image: url('hero-right2.png');
  background-position: center 20%;
  animation: kenBurnsR 10s ease-in-out infinite alternate;
  animation-delay: -5s;
  z-index: 2;
  opacity: 0;
  transition: opacity 1.2s ease-in-out;
  filter: brightness(0.65);
}
.panel-right .img-r2.visible {
  opacity: 1;
}

/* 左：右上→左下 */
@keyframes kenBurnsL {
  from { transform: scale(1.07) translate( 2%,  1%); }
  to   { transform: scale(1.00) translate(-1%, -1%); }
}
/* 右：左下→右上（逆位相） */
@keyframes kenBurnsR {
  from { transform: scale(1.00) translate(-1%, -1%); }
  to   { transform: scale(1.07) translate( 2%,  1%); }
}

/* 中央の仕切り線 */
.panel-left::after {
  content: '';
  position: absolute; top: 0; right: 0; bottom: 0;
  width: 2px;
  background: rgba(255,255,255,0.3);
  z-index: 1;
}

/* オーバーレイ（テキスト可読性確保） */
.hero-overlay {
  position: absolute; inset: 0;
  background:
    linear-gradient(to right,  rgba(15,8,4,0.52) 0%, rgba(15,8,4,0.28) 50%, rgba(15,8,4,0.52) 100%),
    linear-gradient(to bottom, rgba(15,8,4,0.15) 0%, rgba(15,8,4,0.48) 100%);
  z-index: 1;
}

/* テキスト（下部寄せ） */
.hero-content {
  position: absolute;
  bottom: 4rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  text-align: center;
  padding: 0 2rem;
  width: 100%;
  max-width: 700px;
}
.hero-eyebrow {
  font-size: 0.72rem; letter-spacing: 0.28em;
  color: var(--gold-light); text-transform: uppercase;
  margin-bottom: 1.2rem;
}
/* 縦書きキャッチコピー（左右独立配置） */
.hero-vtext {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: 'Noto Serif JP', 'Yu Mincho', 'Hiragino Mincho ProN', serif;
  font-size: clamp(1.4rem, 2.8vw, 2.6rem);
  font-weight: 400;
  color: var(--white);
  letter-spacing: 0.18em;
  line-height: 1;
  pointer-events: none;
  text-shadow:
    0 1px 8px rgba(0,0,0,0.5),
    0 0 24px rgba(0,0,0,0.3);
}
/* 左パネル中央 */
.vtext-left  { left: 25%;  transform: translate(-50%, -50%); }
/* 右パネル中央 */
.vtext-right { left: 75%;  transform: translate(-50%, -50%); }
.hero-desc {
  font-family: 'Noto Serif JP', 'Yu Mincho', 'Hiragino Mincho ProN', serif;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  font-weight: 400;
  line-height: 2;
  color: rgba(255,255,255,0.88);
  margin-bottom: 2rem;
  letter-spacing: 0.08em;
}
.hero-actions {
  display: flex; align-items: center; justify-content: center; gap: 1.5rem;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-block;
  background: var(--gold);
  color: var(--white);
  font-size: 0.85rem; font-weight: 400; letter-spacing: 0.1em;
  padding: 1rem 3rem; border-radius: var(--radius);
  transition: background 0.3s, transform 0.25s;
}
.btn-primary:hover { background: var(--gold-light); transform: translateY(-3px); }
.btn-ghost {
  display: inline-block;
  border: 1px solid rgba(255,255,255,0.45);
  color: rgba(255,255,255,0.85);
  font-size: 0.82rem; letter-spacing: 0.1em;
  padding: 1rem 2.5rem; border-radius: var(--radius);
  transition: border-color 0.3s, color 0.3s, background 0.3s;
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); background: rgba(192,128,80,0.08); }
.hero-scroll {
  position: absolute; bottom: 1rem; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.8rem;
  color: rgba(255,255,255,0.45);
  font-size: 0.62rem; letter-spacing: 0.2em; text-transform: uppercase;
  z-index: 2;
}
.hero-scroll-line {
  width: 1px; height: 44px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.45), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%   { transform: scaleY(0); transform-origin: top;    opacity: 1; }
  49%  { transform: scaleY(1); transform-origin: top;    opacity: 1; }
  50%  { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* ===== SECTION BASE ===== */
.section { padding: 8rem 0; }
.section-cream { background: var(--cream); }
.section-warm  { background: var(--blush); }
.container { max-width: 1100px; margin: 0 auto; padding: 0 2.5rem; }

.section-header { text-align: center; margin-bottom: 5rem; }
.section-label {
  display: inline-block;
  font-size: 0.7rem; letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 1rem;
}
.section-title {
  font-family: var(--serif);
  font-size: clamp(1.9rem, 3.5vw, 2.8rem);
  font-weight: 300; letter-spacing: 0.04em; line-height: 1.3;
  color: var(--dark);
}
.section-desc {
  margin-top: 1.5rem;
  font-size: 0.9rem; line-height: 2; color: var(--text-light);
}

/* ===== LEAD ===== */
#lead { padding: 6rem 0; }
.lead-inner { max-width: 760px; margin: 0 auto; text-align: center; }
.lead-text {
  font-family: var(--serif);
  font-size: clamp(1.3rem, 2.5vw, 1.9rem);
  font-weight: 300; line-height: 1.7; letter-spacing: 0.03em;
  color: var(--dark);
  margin-bottom: 2.5rem;
}
.lead-body {
  font-size: 0.92rem; line-height: 2.2; color: var(--text-light);
}
.lead-body strong { color: var(--dark); font-weight: 500; }

/* ===== FEATURES ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--warm);
  border: 1px solid var(--warm);
}
.feature-card {
  background: var(--white);
  padding: 3rem 2.5rem;
  transition: background 0.4s;
  position: relative;
}
.feature-card:hover { background: var(--cream); }
.feature-num {
  font-family: var(--serif);
  font-size: 2.8rem; font-weight: 300; line-height: 1;
  color: var(--gold); margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}
.feature-card h3 {
  font-size: 0.98rem; font-weight: 500;
  letter-spacing: 0.03em; line-height: 1.6;
  color: var(--dark); margin-bottom: 1rem;
}
.feature-card p {
  font-size: 0.84rem; line-height: 1.95;
  color: var(--text-light);
}

/* ===== TARGET ===== */
.target-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.2rem;
  max-width: 820px; margin: 0 auto;
}
.target-item {
  display: flex; align-items: flex-start; gap: 1.2rem;
  padding: 1.8rem 2rem;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: 0 4px 16px rgba(44,34,24,0.08);
  transition: transform 0.3s var(--ease), box-shadow 0.3s;
}
.target-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 28px rgba(44,34,24,0.13);
}
.target-mark {
  font-family: var(--serif);
  font-size: 1.8rem; color: var(--gold);
  flex-shrink: 0; line-height: 1;
  margin-top: 0.1rem;
}
.target-item p {
  font-size: 0.95rem; font-weight: 500;
  line-height: 1.75;
  color: var(--dark);
}
.target-note {
  text-align: center; margin-top: 3.5rem;
  font-size: 0.78rem; color: var(--text-light);
  letter-spacing: 0.05em;
}

/* ===== CURRICULUM ===== */
.curriculum-list { display: flex; flex-direction: column; }
.curriculum-item {
  display: flex; gap: 3.5rem; align-items: flex-start;
  padding: 2.8rem 0;
  border-bottom: 1px solid var(--warm);
  transition: padding 0.35s var(--ease), background 0.35s;
}
.curriculum-item:first-child { border-top: 1px solid var(--warm); }
.curriculum-item:hover {
  background: var(--cream);
  padding-left: 1.5rem; padding-right: 1.5rem;
  margin: 0 -1.5rem;
}
.curriculum-meta {
  flex-shrink: 0; min-width: 90px;
  display: flex; flex-direction: column; align-items: flex-start;
  padding-top: 0.25rem;
}
.curriculum-chapter {
  font-size: 0.62rem; letter-spacing: 0.18em;
  color: var(--text-light); text-transform: uppercase;
  line-height: 1;
}
.curriculum-num {
  font-family: var(--serif);
  font-size: 2.4rem; font-weight: 300; line-height: 1.1;
  color: var(--gold); letter-spacing: -0.02em;
}
.curriculum-body h3 {
  font-size: 1.05rem; font-weight: 500;
  letter-spacing: 0.03em; color: var(--dark);
  margin-bottom: 0.7rem;
}
.curriculum-body p {
  font-size: 0.85rem; line-height: 1.95;
  color: var(--text-light);
}

/* ===== VOICES ===== */
.voices-videos {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
  margin-bottom: 5rem;
}
.voice-item { display: flex; flex-direction: column; gap: 1rem; }
.video-thumb-link { display: block; text-decoration: none; }
.video-wrap {
  position: relative; padding-top: 56.25%;
  background: var(--warm);
  border-radius: var(--radius); overflow: hidden;
}
.video-thumb {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s var(--ease);
}
.video-thumb-link:hover .video-thumb { transform: scale(1.04); }
.video-play-btn {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 2.8rem; color: #fff;
  background: rgba(0,0,0,0.25);
  transition: background 0.3s;
}
.video-thumb-link:hover .video-play-btn { background: rgba(0,0,0,0.45); }
.video-yt-btn {
  display: inline-block;
  margin-top: 0.2rem;
  padding: 0.45rem 1.2rem;
  background: var(--gold);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  border-radius: 2rem;
  text-decoration: none;
  align-self: center;
  transition: background 0.3s, transform 0.2s;
}
.video-yt-btn:hover { background: var(--gold-light); transform: translateY(-2px); }
.video-caption {
  font-size: 0.78rem; color: var(--text-light);
  text-align: center; letter-spacing: 0.05em;
}

/* Text testimonials */
.voices-text-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 4rem;
}
.voice-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  display: flex; flex-direction: column; gap: 1.2rem;
  border: 1px solid var(--warm);
  transition: box-shadow 0.3s, transform 0.3s;
}
.voice-card:hover {
  box-shadow: 0 8px 32px rgba(44,34,24,0.08);
  transform: translateY(-4px);
}
.voice-quote {
  font-family: var(--serif);
  font-size: 3.5rem; line-height: 0.8;
  color: var(--gold); font-weight: 300;
}
.voice-body { flex-grow: 1; }
.voice-trigger {
  font-size: 0.78rem; line-height: 1.8;
  color: var(--text-light); margin-bottom: 1rem;
}
.voice-trigger span {
  display: block;
  font-size: 0.65rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 0.4rem;
}
.voice-card blockquote {
  font-size: 0.88rem; line-height: 2;
  color: var(--text);
  border-left: 2px solid var(--gold);
  padding-left: 1rem;
  font-style: italic;
}
.voice-footer {
  display: flex; align-items: center; gap: 0.8rem;
  justify-content: flex-end;
}
.voice-avatar {
  width: 64px; height: 64px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  border: 2px solid var(--warm);
  flex-shrink: 0;
}
.voice-avatar-clip {
  display: inline-block;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--warm);
  flex-shrink: 0;
}
.voice-avatar--zoom {
  width: 100%;
  height: 100%;
  border-radius: 0;
  border: none;
  transform: scale(1.2);
  transform-origin: 30% center;
  object-position: 30% center;
}
.voice-avatar--s {
  transform: scale(1.2);
  transform-origin: 40% center;
  object-position: 40% center;
}
.voice-avatar--m {
  transform: scale(1.2);
  transform-origin: center center;
  object-position: center center;
}

.voice-name {
  font-size: 0.78rem; letter-spacing: 0.1em;
  color: var(--text-light);
}

.voices-more { text-align: center; margin-top: 1rem; }

.btn-outline {
  display: inline-block;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-size: 0.82rem; letter-spacing: 0.1em;
  padding: 0.85rem 2.5rem; border-radius: var(--radius);
  transition: background 0.3s, color 0.3s;
}
.btn-outline:hover { background: var(--gold); color: var(--white); }

/* ===== INSTRUCTOR ===== */
.instructor-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 6rem; align-items: start;
}
.instructor-photo {
  width: 100%; aspect-ratio: 3/4;
  background: url('instructor.jpeg') center 30% / cover no-repeat;
  border-radius: var(--radius);
}
.instructor-label {
  display: block;
  font-size: 0.7rem; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 0.8rem;
}
.instructor-name {
  font-family: var(--serif);
  font-size: clamp(1.9rem, 3vw, 2.4rem);
  font-weight: 300; letter-spacing: 0.04em;
  color: var(--dark); margin-bottom: 1.5rem; line-height: 1.2;
}
.instructor-name span {
  display: block;
  font-size: 0.95rem; font-weight: 300;
  letter-spacing: 0.12em; color: var(--text-light);
  margin-top: 0.4rem;
}
.instructor-tags {
  display: flex; flex-wrap: wrap; gap: 0.5rem;
  margin-bottom: 2.5rem;
}
.tag {
  font-size: 0.7rem; letter-spacing: 0.04em;
  padding: 0.3rem 1rem;
  border: 1px solid var(--warm);
  color: var(--text-light); border-radius: 100px;
}
.instructor-bio { margin-bottom: 2.5rem; }
.instructor-bio p {
  font-size: 0.88rem; line-height: 2.1;
  color: var(--text); margin-bottom: 1rem;
}
.instructor-certs {
  list-style: none;
  border-top: 1px solid var(--warm); padding-top: 1.5rem;
}
.instructor-certs li {
  font-size: 0.8rem; color: var(--text-light);
  padding: 0.55rem 0 0.55rem 1.5rem;
  border-bottom: 1px solid var(--warm);
  letter-spacing: 0.03em; position: relative;
}
.instructor-certs li::before {
  content: '—';
  position: absolute; left: 0; color: var(--gold);
}

#instructor { padding-bottom: 4rem; }
#faq        { padding-top: 4rem; }

/* ===== FAQ ===== */
.faq-list {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.faq-item {
  border: 1px solid var(--warm);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
}
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.4rem 1.8rem;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--brown);
  font-family: var(--sans);
  transition: background 0.2s;
}
.faq-question:hover { background: var(--cream); }
.faq-icon {
  flex-shrink: 0;
  width: 20px; height: 20px;
  position: relative;
}
.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: var(--gold);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.faq-icon::before { width: 100%; height: 2px; top: 9px; left: 0; }
.faq-icon::after  { width: 2px; height: 100%; top: 0; left: 9px; }
.faq-question[aria-expanded="true"] .faq-icon::after {
  transform: rotate(90deg);
  opacity: 0;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 1.8rem;
}
.faq-answer.open {
  max-height: 300px;
  padding: 0 1.8rem 1.4rem;
}
.faq-answer p {
  font-size: 0.9rem;
  line-height: 1.9;
  color: var(--text);
  border-left: 2px solid var(--gold);
  padding-left: 1rem;
}

/* ===== ABOUT ===== */
.about-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 4rem;
  align-items: center;
}
.about-header {
  text-align: center;
  margin-bottom: 2.5rem;
}
.about-card {
  background: #ffffff;
  border-radius: 1.2rem;
  border: none;
  box-shadow: none;
  padding: 3.5rem;
}
.about-title {
  font-family: var(--serif);
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  line-height: 1.5;
  color: var(--brown);
  margin-top: 0.8rem;
  margin-bottom: 0;
}
.about-body p {
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--text);
  margin-bottom: 1.2rem;
}
.btn-instagram {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1rem;
  padding: 0.85rem 2rem;
  background: linear-gradient(135deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  border-radius: 2rem;
  text-decoration: none;
  transition: opacity 0.2s;
}
.btn-instagram:hover { opacity: 0.85; }
.about-logo {
  display: flex;
  justify-content: center;
  align-items: center;
  border: none;
  border-right: none;
}
.about-logo-inner {
  width: 340px; height: 340px;
  background: url('logo.png') center / contain no-repeat;
  border: none;
  border-right: none;
}
.about-logo-inner:not([style]) .about-logo-text,
.about-logo-inner .about-logo-text {
  font-family: var(--serif);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--brown);
  letter-spacing: 0.15em;
  line-height: 1;
}
.about-logo-inner .about-logo-sub {
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  color: var(--gold);
  margin-top: 0.4rem;
}

/* ===== CONTACT ===== */
.line-cta-outer {
  background: var(--cream);
  padding: 0 0 4rem;
}
.line-cta-wrap {
  max-width: 760px;
  margin: 0 auto;
}
.line-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 2.2rem 3rem;
  background: #06C755;
  border-radius: 1.2rem;
  text-decoration: none;
  box-shadow: 0 8px 32px rgba(6,199,85,0.25);
  transition: background 0.25s, transform 0.3s var(--ease), box-shadow 0.3s;
}
.line-cta:hover {
  background: #05b84d;
  transform: translateY(-4px);
  box-shadow: 0 14px 40px rgba(6,199,85,0.35);
}
.line-cta-left {
  display: flex;
  align-items: center;
  gap: 1.4rem;
}
.line-cta-icon {
  width: 48px; height: 48px;
  color: #fff;
  flex-shrink: 0;
}
.line-cta-text {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.line-cta-label {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.04em;
}
.line-cta-sub {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.85);
}
.line-cta-btn {
  display: inline-block;
  padding: 0.7rem 1.6rem;
  background: #fff;
  color: #06C755;
  font-size: 0.88rem;
  font-weight: 700;
  border-radius: 2rem;
  white-space: nowrap;
  transition: background 0.2s, color 0.2s;
}
.line-cta:hover .line-cta-btn {
  background: rgba(255,255,255,0.9);
}

/* ===== FOOTER ===== */
#footer {
  background: var(--white);
  padding: 5rem 0 2.5rem;
  border-top: 1px solid var(--warm);
}
.footer-top {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 3rem; margin-bottom: 4rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--warm);
}
.footer-logo {
  font-family: var(--serif);
  font-size: 1.6rem; font-weight: 300;
  letter-spacing: 0.12em; color: var(--dark);
  margin-bottom: 0.8rem;
}
.footer-logo span { color: var(--gold); }
.footer-tagline {
  font-size: 0.75rem; line-height: 1.9;
  color: var(--text-light); letter-spacing: 0.05em;
}
.footer-nav {
  display: flex; gap: 2rem; flex-wrap: wrap; align-items: center;
}
.footer-nav a {
  font-size: 0.75rem; letter-spacing: 0.08em;
  color: var(--text-light);
  transition: color 0.3s;
}
.footer-nav a:hover { color: var(--gold); }
.footer-copy {
  text-align: center;
  font-size: 0.68rem; color: var(--text-light);
  letter-spacing: 0.08em;
}

/* ===== ANIMATIONS ===== */
.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.85s var(--ease), transform 0.85s var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Utility */
.sp-br { display: none; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .instructor-grid { gap: 4rem; }
}

@media (max-width: 900px) {
  .features-grid    { grid-template-columns: repeat(2, 1fr); }
  .voices-text-grid { grid-template-columns: repeat(2, 1fr); }
  .instructor-grid  { grid-template-columns: 1fr; }
  .instructor-photo { aspect-ratio: 4/3; max-width: 420px; }
  .about-card       { padding: 2rem; }
  .about-grid       { grid-template-columns: 1fr; gap: 3rem; }
  .about-logo       { order: -1; }
  .footer-top       { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 640px) {
  .section { padding: 5rem 0; }
  .container { padding: 0 1.5rem; }
  .section-header { margin-bottom: 3rem; }

  /* Nav */
  .nav-inner { padding: 0 1.5rem; }
  .nav-links  { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: fixed; top: 64px; left: 0; right: 0; bottom: 0;
    background: rgba(255,255,255,0.98);
    padding: 3rem 2rem; gap: 2rem;
    overflow-y: auto;
    border-top: 1px solid var(--warm);
  }
  .nav-links.open li { border-bottom: 1px solid var(--warm); padding-bottom: 1.5rem; }
  .nav-links.open a { font-size: 1rem; color: var(--text); }
  .nav-links.open .nav-cta {
    display: inline-block; text-align: center;
    padding: 0.8rem 2rem !important;
    margin-top: 0.5rem;
  }

  /* Hero - モバイル：画像上部＋テキスト下部の縦積みレイアウト */
  #hero {
    min-height: unset;
    aspect-ratio: unset;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    overflow: visible;
  }
  .hero-split {
    position: relative;
    flex-shrink: 0;
    width: 100%;
    height: unset;
    aspect-ratio: 13 / 10;
    max-height: 85vh;
    inset: unset;
  }
  .hero-overlay { display: none; }
  .hero-split::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
      linear-gradient(to right,  rgba(15,8,4,0.52) 0%, rgba(15,8,4,0.28) 50%, rgba(15,8,4,0.52) 100%),
      linear-gradient(to bottom, rgba(15,8,4,0.15) 0%, rgba(15,8,4,0.48) 100%);
    z-index: 1;
    pointer-events: none;
  }
  .hero-vtext {
    font-size: clamp(0.9rem, 3.8vw, 1.2rem);
  }
  .vtext-left  { left: 25%; top: 30%; transform: translate(-50%, 0); }
  .vtext-right { left: 75%; top: 30%; transform: translate(-50%, 0); }
  /* モバイル：insetリセットでズームアウト＋位置調整 */
  .hero-panel-img { inset: 0; }
  .panel-left .img-l1  { background-position: center 20% !important; }
  .panel-left .img-l2  { background-position: 55% 20% !important; }
  .panel-right .img-r1 { background-position: center 20% !important; }
  .panel-right .img-r2 { background-position: center 30% !important; }
  .hero-content {
    position: static;
    transform: none;
    left: auto;
    bottom: auto;
    max-width: 100%;
    padding: 2.5rem 1.5rem 2rem;
    background: var(--cream);
  }
  .hero-eyebrow { color: var(--gold); }
  .hero-desc { color: var(--text); }
  .hero-actions { flex-direction: column; }
  .btn-primary, .btn-ghost { width: 100%; max-width: 280px; }
  .btn-ghost {
    border-color: rgba(192,128,80,0.5);
    color: var(--gold);
    background: transparent;
  }
  .hero-scroll { display: none; }
  .sp-br { display: block; }

  /* Features */
  .features-grid { grid-template-columns: 1fr; }

  /* Target */
  .target-grid { grid-template-columns: 1fr; }

  /* Curriculum */
  .curriculum-item { flex-direction: column; gap: 0.8rem; }
  .curriculum-item:hover { padding-left: 0; padding-right: 0; margin: 0; }
  .curriculum-meta { flex-direction: row; align-items: baseline; gap: 0.5rem; }
  .curriculum-num { font-size: 1.8rem; }

  /* Voices */
  .voices-videos    { grid-template-columns: 1fr; }
  .voices-text-grid { grid-template-columns: 1fr; }

  /* Contact */
  .contact-cards { grid-template-columns: 1fr; }
  .contact-card { padding: 2rem; }
  .line-cta { flex-direction: column; align-items: flex-start; padding: 2rem; }
  .line-cta-btn { width: 100%; text-align: center; }

  /* Footer */
  .footer-nav { gap: 1.2rem; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 2.3rem; }
  .lead-text  { font-size: 1.2rem; }
}