/* =====================================================================
   Crown Lengtheningの設計思考 — Landing Page
   合同会社WFI / 金森 行泰
   ===================================================================== */

/* ---------- Design Tokens ---------- */
:root {
  /* Palette */
  --color-navy:        #1A2B4A;
  --color-navy-deep:   #0F1B33;
  --color-navy-soft:   #243B66;
  --color-gold:        #C9A961;
  --color-gold-light:  #D4B876;
  --color-gold-dark:   #A88A45;
  --color-off-white:   #F5F5F0;
  --color-paper:       #FBFAF5;
  --color-text:        #333333;
  --color-text-light:  #666666;
  --color-text-muted:  #8A8A85;
  --color-line:        rgba(201, 169, 97, 0.32);
  --color-line-dark:   rgba(15, 27, 51, 0.12);

  /* Typography */
  --font-serif-jp:  "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-sans-jp:   "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
  --font-serif-en:  "Cormorant Garamond", "Noto Serif JP", serif;

  /* Type scale (clamp: min, fluid, max) */
  --fs-hero-title:    clamp(2.4rem, 5.6vw, 4.4rem);
  --fs-section-title: clamp(1.75rem, 3.4vw, 2.6rem);
  --fs-card-title:    clamp(1.15rem, 2vw, 1.4rem);
  --fs-eyebrow:       clamp(0.72rem, 1vw, 0.82rem);
  --fs-body:          clamp(0.95rem, 1.15vw, 1.05rem);
  --fs-small:         0.82rem;

  /* Spacing */
  --space-section: clamp(5rem, 10vw, 8.5rem);
  --space-block:   clamp(2rem, 4vw, 3.5rem);
  --container-max: 1120px;
  --container-narrow: 820px;

  /* Effects */
  --radius-sm: 2px;
  --radius-md: 4px;
  --shadow-soft: 0 1px 2px rgba(15, 27, 51, 0.04), 0 8px 24px rgba(15, 27, 51, 0.06);
  --shadow-lift: 0 2px 4px rgba(15, 27, 51, 0.06), 0 18px 40px rgba(15, 27, 51, 0.12);
  --easing: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- Reset / Base ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-serif-jp);
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--color-text);
  background: var(--color-paper);
  font-feature-settings: "palt" 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s var(--easing), opacity 0.3s var(--easing);
}

a:hover { color: var(--color-gold-dark); }

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.02em;
}

p { margin: 0; }
ul, dl { margin: 0; padding: 0; list-style: none; }

/* Skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-navy);
  color: var(--color-off-white);
  padding: 0.5rem 1rem;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}
.container--narrow { max-width: var(--container-narrow); }

.section {
  padding-block: var(--space-section);
  position: relative;
}

.section__head {
  text-align: center;
  margin-bottom: var(--space-block);
}
.section__head--light { color: var(--color-off-white); }

.section__eyebrow {
  font-family: var(--font-serif-en);
  font-size: var(--fs-eyebrow);
  letter-spacing: 0.32em;
  color: var(--color-gold);
  text-transform: uppercase;
  margin-bottom: 0.9rem;
  font-weight: 500;
}

.section__title {
  font-size: var(--fs-section-title);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-navy);
}
.section__head--light .section__title { color: var(--color-off-white); }

.section__desc {
  margin-top: 1.4rem;
  font-size: var(--fs-small);
  color: var(--color-text-light);
  letter-spacing: 0.05em;
}
.section__head--light .section__desc { color: rgba(245, 245, 240, 0.8); }

.rule {
  display: block;
  width: 56px;
  height: 1px;
  margin: 1.4rem auto 0;
  background: var(--color-gold);
  position: relative;
}
.rule::before,
.rule::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 4px;
  height: 4px;
  background: var(--color-gold);
  border-radius: 50%;
  transform: translateY(-50%) rotate(45deg);
}
.rule::before { left: -8px; }
.rule::after  { right: -8px; }
.rule--light,
.rule--light::before,
.rule--light::after { background: var(--color-gold-light); }

/* ---------- Reveal animation ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 1s var(--easing), transform 1s var(--easing);
  will-change: opacity, transform;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* =====================================================================
   HERO  — split layout (PC: text left / portrait right)
                 (mobile: stacked, portrait between catch and CTA)
   ===================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  padding: clamp(5rem, 9vh, 7rem) clamp(1.25rem, 4vw, 3rem) clamp(5rem, 12vh, 8rem);
  color: var(--color-off-white);
  overflow: hidden;
  isolation: isolate;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 30% 30%, rgba(201, 169, 97, 0.08), transparent 60%),
    linear-gradient(180deg, var(--color-navy-deep) 0%, var(--color-navy) 55%, var(--color-navy-deep) 100%);
}
.hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.12;
  mix-blend-mode: overlay;
  pointer-events: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.55 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* HERO 背景動画 — オペ中の動画をループ再生 */
.hero__bg-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  z-index: 0;
  /* 動画が読み込めない環境ではposterに自動フォールバック */
}
/* 動画上に紺×ゴールドのオーバーレイを重ねて学術トーン維持 */
.hero__bg-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 25% 35%, rgba(201, 169, 97, 0.10), transparent 60%),
    linear-gradient(180deg,
      rgba(15, 27, 51, 0.86) 0%,
      rgba(26, 43, 74, 0.78) 50%,
      rgba(15, 27, 51, 0.92) 100%);
}
/* PCワイドでは右カラム portrait を見せたいので、
   オーバーレイを少し濃くして文字側のコントラスト確保 */
@media (min-width: 1024px) {
  .hero--split .hero__bg-overlay {
    background:
      radial-gradient(ellipse at 25% 40%, rgba(201, 169, 97, 0.10), transparent 55%),
      linear-gradient(180deg,
        rgba(15, 27, 51, 0.88) 0%,
        rgba(26, 43, 74, 0.82) 50%,
        rgba(15, 27, 51, 0.92) 100%);
  }
}
/* 動画再生を抑止する設定への配慮 */
@media (prefers-reduced-motion: reduce) {
  .hero__bg-video { display: none; }
}

/* PCワイド: 背景動画＋濃いめのオーバーレイ。
   先生写真は右カラムの hero__portrait フレームで表示する */
@media (min-width: 1024px) {
  .hero--split .hero__bg::after {
    opacity: 0.10;
  }
}

/* HERO grid: 左右分割（PC） / 上下分割（モバイル） */
.hero__grid {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.6rem, 3vh, 2.4rem);
  align-items: center;
}
/* モバイルでは hero__inner を先に表示し、portrait は中段 */
@media (max-width: 1023px) {
  .hero__inner { order: 1; }
  .hero__portrait { order: 2; }
}
@media (min-width: 1024px) {
  .hero__grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
    column-gap: clamp(2rem, 3.5vw, 3.5rem);
  }
}

.hero__inner {
  max-width: 640px;
  margin-inline: auto;
  text-align: center;
  min-width: 0;
}
@media (min-width: 1024px) {
  .hero__inner {
    max-width: none;
    margin-inline: 0;
    text-align: left;
  }
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  font-family: var(--font-serif-en);
  font-size: 0.78rem;
  letter-spacing: 0.5em;
  color: var(--color-gold-light);
  margin-bottom: clamp(1.2rem, 2.4vh, 2rem);
  text-indent: 0.5em; /* compensate for letter-spacing */
}

/* キャッチコピー（旧 vertical-catch を横書き化） */
.hero__catch {
  display: flex;
  flex-direction: column;
  gap: 0.4em;
  font-family: var(--font-serif-jp);
  margin-bottom: clamp(1.4rem, 3vh, 2rem);
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.4);
  position: relative;
  z-index: 3; /* 講師ポートレートに重ならないよう前面へ */
}
.hero__catch-small {
  font-size: clamp(0.85rem, 1.1vw, 0.95rem);
  font-weight: 400;
  letter-spacing: 0.42em;
  color: var(--color-gold-light);
  text-indent: 0.42em;
  opacity: 0.92;
}
.hero__catch-large {
  font-size: clamp(1.3rem, 2.1vw, 1.7rem);
  font-weight: 600;
  letter-spacing: 0.18em;
  line-height: 1.5;
  color: var(--color-off-white);
}

.ornament {
  display: inline-block;
  width: 28px;
  height: 1px;
  background: var(--color-gold);
  opacity: 0.7;
}

.hero__title {
  font-family: var(--font-serif-jp);
  font-size: clamp(1.35rem, 5.4vw, 2.9rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.4;
  margin-bottom: clamp(0.8rem, 1.8vh, 1.4rem);
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.18);
  overflow-wrap: anywhere;
  word-break: normal;
}
@media (min-width: 768px) {
  .hero__title {
    word-break: keep-all;
    font-size: clamp(1.8rem, 3.6vw, 2.9rem);
    letter-spacing: 0.06em;
  }
}
/* PC幅では強制改行を無効化（一行で収まるならそうする） */
@media (min-width: 600px) {
  .hero__title-br { display: none; }
}

.hero__subtitle {
  font-family: var(--font-serif-jp);
  font-size: clamp(0.78rem, 1.5vw, 1.1rem);
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--color-gold-light);
  margin-bottom: clamp(2rem, 5vh, 3rem);
  word-break: keep-all;
  overflow-wrap: anywhere;
}
@media (min-width: 600px) {
  .hero__subtitle { letter-spacing: 0.18em; }
}

.hero__lead {
  font-family: var(--font-serif-jp);
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  font-weight: 300;
  line-height: 2;
  letter-spacing: 0.12em;
  color: rgba(245, 245, 240, 0.92);
  margin-bottom: clamp(1.5rem, 3vh, 2.5rem);
}

.hero__meta {
  font-family: var(--font-serif-en), var(--font-serif-jp);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  color: rgba(245, 245, 240, 0.7);
  margin-bottom: clamp(2rem, 5vh, 3rem);
  padding-bottom: 1.4rem;
  position: relative;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
.hero__meta-item { display: inline-block; }
.hero__meta-sep {
  display: inline-block;
  margin: 0 0.7em;
  color: var(--color-gold);
  opacity: 0.5;
}
@media (max-width: 500px) {
  .hero__meta-sep { display: block; height: 0.4em; opacity: 0; }
}
.hero__meta::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 36px;
  height: 1px;
  background: var(--color-gold);
  transform: translateX(-50%);
}
@media (min-width: 1024px) {
  .hero__meta::after { left: 0; transform: none; }
}

.hero__cta-wrap { display: block; }

/* HERO portrait (右カラム) */
.hero__portrait {
  margin: 0;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
  /* モバイル: コンパクトに */
  width: clamp(160px, 46vw, 230px);
  margin-inline: auto;
}
@media (min-width: 1024px) {
  .hero__portrait {
    width: 100%;
    max-width: 420px;
    justify-self: end;
    margin: 0;
    padding-left: clamp(1rem, 2vw, 2rem); /* キャッチコピーとの間隔確保 */
    position: relative;
    z-index: 1; /* hero__catch (z-index:3) より背面 */
  }
}
.hero__portrait-frame {
  width: 100%;
  aspect-ratio: 4 / 5;
  border: 1px solid var(--color-gold);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.04) inset,
    0 30px 60px rgba(0, 0, 0, 0.4);
  position: relative;
  overflow: hidden;
  background: var(--color-navy-deep);
}
/* 講師写真本体（imgで配置・cover固定で歪み防止） */
.hero__portrait-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top; /* 顔（上半身）を中央に、上下白余白を排除 */
  display: block;
}
/* 写真下部にネイビーのフェード（キャプション読みやすく） */
.hero__portrait-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 27, 51, 0) 60%, rgba(15, 27, 51, 0.55) 100%);
  pointer-events: none;
  z-index: 1;
}
.hero__portrait-frame::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(201, 169, 97, 0.4);
  pointer-events: none;
  z-index: 2; /* 写真とフェードの上に出す */
}
.hero__portrait-cap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2em;
  font-family: var(--font-serif-jp);
  text-align: center;
}
.hero__portrait-cap-en {
  font-family: var(--font-serif-en);
  font-size: 0.74rem;
  letter-spacing: 0.28em;
  color: var(--color-gold);
  text-indent: 0.28em;
}
.hero__portrait-cap-jp {
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  color: rgba(245, 245, 240, 0.86);
  text-indent: 0.18em;
}

/* Scroll hint */
.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: clamp(2rem, 5vh, 3rem);
  width: 1px;
  height: 56px;
  display: block;
  transform: translateX(-50%);
  overflow: hidden;
}
.hero__scroll-line {
  display: block;
  width: 1px;
  height: 100%;
  background: var(--color-gold);
  transform-origin: top;
  animation: scrollHint 2.4s var(--easing) infinite;
}
@keyframes scrollHint {
  0%   { transform: scaleY(0); transform-origin: top; }
  45%  { transform: scaleY(1); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* =====================================================================
   BUTTONS
   ===================================================================== */
.btn {
  display: inline-block;
  padding: 1rem 2.6rem;
  font-family: var(--font-serif-jp);
  font-size: 0.95rem;
  letter-spacing: 0.22em;
  font-weight: 400;
  text-decoration: none;
  border: 1px solid var(--color-gold);
  color: var(--color-gold-light);
  background: transparent;
  transition: all 0.4s var(--easing);
  position: relative;
  cursor: pointer;
}
.btn--ghost::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.5s var(--easing);
  z-index: -1;
}
.btn--ghost:hover {
  color: var(--color-navy-deep);
  border-color: var(--color-gold);
}
.btn--ghost:hover::before {
  transform: scaleX(1);
  transform-origin: left;
}

/* =====================================================================
   ABOUT — Pillars
   ===================================================================== */
.section--about {
  background: var(--color-paper);
}

.prose {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: var(--space-block);
  color: var(--color-text);
  letter-spacing: 0.06em;
  line-height: 2.1;
}
.prose p + p { margin-top: 1.4em; }

/* ABOUT 2カラム: 文章 + 術中写真（PCのみ並列、モバイルは縦積み） */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 4vw, 3rem);
  align-items: center;
  margin-bottom: var(--space-block);
}
@media (min-width: 900px) {
  .about-grid {
    grid-template-columns: 1.3fr 1fr;
    gap: clamp(2.5rem, 5vw, 4rem);
  }
}
.about-grid__text {
  margin-bottom: 0;
  text-align: center;
}
@media (min-width: 900px) {
  .about-grid__text { text-align: left; margin-inline: 0; }
}
.about-grid__photo {
  margin: 0;
  position: relative;
  width: 100%;
  max-width: 360px;
  margin-inline: auto;
  /* 顔がしっかり見える比率に最適化（モバイル: 縦長 4:5） */
  aspect-ratio: 4 / 5;
  /* 白枠系装飾を全撤去 — 縁なしで写真をそのまま表示 */
  border: none;
  overflow: hidden;
  background: transparent;
  box-shadow: none;
  padding: 0;
}
@media (min-width: 900px) {
  .about-grid__photo {
    max-width: none;
    width: 100%;
    justify-self: stretch;
    /* PC: 右カラム幅にフィット、テキスト高さに揃うよう 3:4 */
    aspect-ratio: 3 / 4;
  }
}
.about-grid__photo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* 顔（画像中央上寄り）にフォーカス */
  object-position: center 30%;
  display: block;
}
.about-grid__photo::after {
  /* 内側ゴールド枠も撤去（白枠全廃方針） */
  content: none;
}

.pillars {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: var(--space-block);
}
@media (min-width: 768px) {
  .pillars { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
}

.pillar {
  background: #fff;
  padding: clamp(2rem, 4vw, 2.8rem) clamp(1.5rem, 3vw, 2rem);
  text-align: center;
  border: 1px solid var(--color-line);
  position: relative;
  transition: transform 0.5s var(--easing), box-shadow 0.5s var(--easing);
}
.pillar:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
}
.pillar::before {
  content: "";
  position: absolute;
  top: 0; left: 50%;
  width: 0; height: 2px;
  background: var(--color-gold);
  transform: translateX(-50%);
  transition: width 0.6s var(--easing);
}
.pillar:hover::before { width: 36px; }

.pillar__num {
  display: inline-block;
  font-family: var(--font-serif-en);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-gold);
  padding-bottom: 0.6rem;
  margin-bottom: 1.2rem;
  position: relative;
}
.pillar__num::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 0;
  width: 18px;
  height: 1px;
  background: var(--color-gold);
  transform: translateX(-50%);
}

.pillar__title {
  font-size: var(--fs-card-title);
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-navy);
  margin-bottom: 1rem;
}

.pillar__body {
  font-size: 0.92rem;
  line-height: 1.95;
  letter-spacing: 0.04em;
  color: var(--color-text-light);
}

/* =====================================================================
   AUDIENCE — こんな方におすすめ
   ===================================================================== */
.section--audience {
  background: var(--color-off-white);
}

.audience-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: var(--space-block);
}
@media (min-width: 768px) {
  .audience-list { grid-template-columns: 1fr 1fr; gap: 1.2rem; }
}

.audience-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.2rem;
  align-items: center;
  background: #fff;
  padding: 1.4rem 1.6rem;
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-gold);
  position: relative;
  transition: transform 0.4s var(--easing), box-shadow 0.4s var(--easing);
}
.audience-item:hover {
  transform: translateX(2px);
  box-shadow: var(--shadow-soft);
}
.audience-item__num {
  font-family: var(--font-serif-en);
  font-size: 1.6rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-gold);
  line-height: 1;
}
.audience-item__text {
  font-size: 0.96rem;
  line-height: 1.85;
  letter-spacing: 0.04em;
  color: var(--color-text);
}
.audience-item__text strong {
  font-weight: 600;
  color: var(--color-navy);
  border-bottom: 1px solid var(--color-gold);
  padding-bottom: 1px;
}

/* =====================================================================
   TAKEAWAY — 受講後に得られるもの
   ===================================================================== */
.section--takeaway {
  background: var(--color-navy);
  color: var(--color-off-white);
  position: relative;
  overflow: hidden;
}
.section--takeaway::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.4 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  opacity: 0.06;
  pointer-events: none;
}

.takeaway-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
  margin-top: var(--space-block);
  position: relative;
  z-index: 1;
}
@media (min-width: 768px) {
  .takeaway-list { grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
}

.takeaway-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(201, 169, 97, 0.35);
  border-top: 2px solid var(--color-gold);
  padding: clamp(1.6rem, 3vw, 2rem);
  text-align: left;
}
.takeaway-item__title {
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-gold-light);
  line-height: 1.6;
  margin-bottom: 1rem;
}
.takeaway-item__body {
  font-size: 0.92rem;
  line-height: 2;
  letter-spacing: 0.04em;
  color: rgba(245, 245, 240, 0.85);
}
.takeaway-item__body strong {
  font-weight: 500;
  color: var(--color-off-white);
  border-bottom: 1px solid rgba(201, 169, 97, 0.5);
  padding-bottom: 1px;
}

/* =====================================================================
   FAQ
   ===================================================================== */
.section--faq {
  background: var(--color-paper);
}

.faq-list {
  margin-top: var(--space-block);
  border-top: 1px solid var(--color-line);
}
.faq-item {
  border-bottom: 1px solid var(--color-line);
  padding: 1.4rem 0;
}
.faq-item__q {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  gap: 0.8rem;
  align-items: baseline;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-navy);
  line-height: 1.7;
  margin-bottom: 0.8rem;
}
.faq-item__a {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  gap: 0.8rem;
  margin: 0;
  padding-top: 0.4rem;
}
.faq-item__a p {
  font-size: 0.94rem;
  line-height: 2;
  letter-spacing: 0.04em;
  color: var(--color-text);
}
.faq-item__a p strong {
  font-weight: 600;
  color: var(--color-navy);
}
.faq-item__mark {
  font-family: var(--font-serif-en);
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-gold);
  text-align: center;
  border: 1px solid var(--color-gold);
  width: 2rem;
  height: 2rem;
  line-height: calc(2rem - 2px);
}
.faq-item__mark--a {
  color: var(--color-off-white);
  background: var(--color-gold);
  border-color: var(--color-gold);
}

/* =====================================================================
   LECTURER
   ===================================================================== */
.section--lecturer {
  background: var(--color-off-white);
}

.lecturer {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: start;
}
@media (min-width: 768px) {
  .lecturer {
    grid-template-columns: minmax(220px, 280px) 1fr;
    gap: clamp(2.5rem, 5vw, 4rem);
  }
}

.lecturer__photo { margin: 0; justify-self: center; }

.lecturer__photo-frame {
  position: relative;
  width: clamp(200px, 60vw, 260px);
  aspect-ratio: 4 / 5;
  border: 1px solid var(--color-gold);
  box-shadow: var(--shadow-soft);
  background: linear-gradient(135deg, var(--color-navy-soft), var(--color-navy));
  overflow: hidden;
}
/* 講師写真本体（imgで配置・object-fit cover で歪み防止） */
.lecturer__photo-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top; /* 顔（上半身）を中央に、上下白余白を排除 */
  display: block;
}
.lecturer__photo-frame::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(201, 169, 97, 0.4);
  pointer-events: none;
  z-index: 2;
}
.lecturer__photo-placeholder {
  font-family: var(--font-serif-en);
  font-size: 0.78rem;
  letter-spacing: 0.4em;
  color: var(--color-gold-light);
  text-indent: 0.4em;
}

.lecturer__name-en {
  font-family: var(--font-serif-en);
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  color: var(--color-gold);
  margin-bottom: 0.4rem;
}

.lecturer__name {
  font-size: clamp(1.4rem, 2.6vw, 1.9rem);
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--color-navy);
  margin-bottom: 1.4rem;
  line-height: 1.4;
}
.lecturer__name small {
  display: inline-block;
  margin-left: 0.6em;
  font-size: 0.55em;
  font-weight: 400;
  letter-spacing: 0.16em;
  color: var(--color-text-light);
}

.lecturer__titles {
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  padding: 1.2rem 0;
  margin-bottom: 1.8rem;
}
.lecturer__titles li {
  font-size: 0.92rem;
  line-height: 2.2;
  letter-spacing: 0.05em;
  color: var(--color-text);
  position: relative;
  padding-left: 1.2rem;
}
.lecturer__titles li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.05em;
  width: 6px;
  height: 1px;
  background: var(--color-gold);
}

.lecturer__profile { text-align: left; max-width: none; margin: 0; }
.lecturer__profile p {
  font-size: 0.95rem;
  line-height: 2.1;
  letter-spacing: 0.04em;
  color: var(--color-text);
}

/* =====================================================================
   LECTURES
   ===================================================================== */
.section--lectures {
  background: var(--color-paper);
}

.lectures {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 3vw, 2rem);
  margin-top: var(--space-block);
  align-items: stretch;
}
@media (min-width: 768px) {
  .lectures { grid-template-columns: 1fr 1fr; }
}

.lecture-card {
  background: #fff;
  padding: clamp(2rem, 4vw, 2.8rem);
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-gold);
  position: relative;
  transition: transform 0.5s var(--easing), box-shadow 0.5s var(--easing);
  display: flex;
  flex-direction: column;
}
.lecture-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
}

.lecture-card__head {
  border-bottom: 1px solid var(--color-line);
  padding-bottom: 1.2rem;
  margin-bottom: 1.4rem;
}

.lecture-card__label {
  font-family: var(--font-serif-en);
  font-size: 0.82rem;
  letter-spacing: 0.32em;
  color: var(--color-gold);
  font-weight: 500;
  margin-bottom: 0.4rem;
}

.lecture-card__date {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-navy);
}

.lecture-card__theme {
  font-size: clamp(1.3rem, 2.4vw, 1.65rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-navy);
  line-height: 1.55;
  margin-bottom: 1.4rem;
  /* タイトル行数差で写真上端がズレるのを防ぐため、2行分の高さを確保 */
  min-height: calc(1em * 1.55 * 2);
}

.lecture-card__list li {
  font-size: 0.92rem;
  line-height: 2.1;
  letter-spacing: 0.04em;
  color: var(--color-text-light);
  position: relative;
  padding-left: 1.2rem;
}
.lecture-card__list li::before {
  content: "";
  position: absolute;
  left: 0; top: 1.05em;
  width: 6px;
  height: 1px;
  background: var(--color-gold);
}

/* =====================================================================
   INFO
   ===================================================================== */
.section--info {
  background: var(--color-off-white);
}

.info-table {
  border-top: 1px solid var(--color-line);
  margin-top: 0;
}
.info-table__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.4rem;
  padding: 1.3rem 0;
  border-bottom: 1px solid var(--color-line);
}
@media (min-width: 600px) {
  .info-table__row {
    grid-template-columns: 200px 1fr;
    gap: 1.4rem;
    align-items: baseline;
  }
}
.info-table__row dt {
  font-family: var(--font-serif-en), var(--font-serif-jp);
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  color: var(--color-gold-dark);
  text-transform: uppercase;
  font-weight: 500;
}
.info-table__row dt small {
  font-family: var(--font-serif-jp);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--color-text-light);
  margin-left: 0.4em;
  text-transform: none;
}
.info-table__row dd {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.8;
  letter-spacing: 0.04em;
  color: var(--color-text);
}
.info-table__row dd small {
  font-size: 0.78rem;
  color: var(--color-text-light);
}

/* =====================================================================
   CTA
   ===================================================================== */
.section--cta {
  background: var(--color-navy);
  color: var(--color-off-white);
  position: relative;
  overflow: hidden;
}
.section--cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0 0 0 0.4 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  opacity: 0.08;
  pointer-events: none;
}

.cta-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: var(--space-block);
  position: relative;
  z-index: 1;
}
@media (min-width: 600px) {
  .cta-grid { grid-template-columns: 1fr 1fr; gap: 1.2rem; }
}

.cta-button {
  display: grid;
  grid-template-areas:
    "label price"
    "date  price"
    "role  price";
  grid-template-columns: 1fr auto;
  align-items: center;
  column-gap: 1rem;
  row-gap: 0.15rem;
  padding: 1.5rem 1.8rem;
  border: 1px solid var(--color-gold);
  background: var(--color-navy-deep);
  color: var(--color-off-white);
  text-decoration: none;
  font-family: var(--font-serif-jp);
  position: relative;
  transition: transform 0.4s var(--easing), box-shadow 0.4s var(--easing), background 0.4s var(--easing);
  text-align: left;
}
.cta-button::after {
  content: "→";
  position: absolute;
  right: 1.4rem;
  bottom: 0.7rem;
  font-family: var(--font-serif-en);
  font-size: 1.2rem;
  color: var(--color-gold);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.4s var(--easing), transform 0.4s var(--easing);
}
.cta-button:hover {
  transform: scale(1.015);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35), 0 0 0 1px var(--color-gold-light) inset;
}
.cta-button:hover::after {
  opacity: 1;
  transform: translateX(0);
}
.cta-button:focus-visible {
  outline: 2px solid var(--color-gold-light);
  outline-offset: 3px;
}

.cta-button__label {
  grid-area: label;
  font-family: var(--font-serif-en);
  font-size: 0.78rem;
  letter-spacing: 0.32em;
  color: var(--color-gold-light);
  font-weight: 500;
}
.cta-button__date {
  grid-area: date;
  font-size: 0.88rem;
  letter-spacing: 0.06em;
  color: rgba(245, 245, 240, 0.72);
}
.cta-button__role {
  grid-area: role;
  font-size: 1rem;
  letter-spacing: 0.18em;
  color: var(--color-off-white);
  font-weight: 500;
  padding-top: 0.2rem;
}
.cta-button__price {
  grid-area: price;
  font-family: var(--font-serif-en);
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 500;
  color: var(--color-gold);
  letter-spacing: 0.04em;
  align-self: center;
  white-space: nowrap;
}
.cta-button__price small {
  font-family: var(--font-serif-jp);
  font-size: 0.55em;
  font-weight: 400;
  margin-left: 0.15em;
  color: var(--color-gold-light);
}

/* DH/学生 variant — gold background, navy text */
.cta-button--dh {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-navy-deep);
}
.cta-button--dh .cta-button__label { color: var(--color-navy); }
.cta-button--dh .cta-button__date  { color: rgba(15, 27, 51, 0.7); }
.cta-button--dh .cta-button__role  { color: var(--color-navy-deep); }
.cta-button--dh .cta-button__price { color: var(--color-navy-deep); }
.cta-button--dh .cta-button__price small { color: var(--color-navy-soft); }
.cta-button--dh::after { color: var(--color-navy-deep); }
.cta-button--dh:hover {
  background: var(--color-gold-light);
}

.cta-note {
  margin-top: clamp(1.6rem, 3vw, 2.4rem);
  text-align: center;
  font-size: 0.8rem;
  line-height: 2;
  letter-spacing: 0.08em;
  color: rgba(245, 245, 240, 0.6);
  position: relative;
  z-index: 1;
}

/* =====================================================================
   VENUE
   ===================================================================== */
.section--venue {
  background: var(--color-paper);
}

.venue { text-align: center; }
.venue__name {
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-navy);
  margin-bottom: 0.5rem;
}
.venue__addr {
  font-size: 0.92rem;
  color: var(--color-text-light);
  letter-spacing: 0.04em;
  margin-bottom: 1.8rem;
}

.venue__map {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--color-line);
  background: var(--color-off-white);
  margin-bottom: 1.4rem;
  overflow: hidden;
}
.venue__map iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.venue__links {
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  color: var(--color-text-light);
}
.venue__links a {
  color: var(--color-gold-dark);
  border-bottom: 1px solid var(--color-line);
  padding-bottom: 2px;
  transition: border-color 0.3s var(--easing), color 0.3s var(--easing);
}
.venue__links a:hover {
  color: var(--color-navy);
  border-bottom-color: var(--color-gold);
}
.venue__sep {
  display: inline-block;
  margin: 0 0.9rem;
  color: var(--color-line);
}

/* =====================================================================
   RELATED （講師の活動 — クリニック / Instagram）
   ===================================================================== */
.section--related {
  background: var(--color-navy);
  color: var(--color-off-white);
  position: relative;
}
.section--related .section__eyebrow {
  color: var(--color-gold-light);
}
.section--related .section__title {
  color: var(--color-off-white);
}
.section--related .rule::after {
  background: var(--color-gold-light);
}

.related-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.4rem;
  max-width: 760px;
  margin: 0 auto;
}
@media (min-width: 720px) {
  .related-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.8rem;
  }
}

.related-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.85rem;
  padding: clamp(1.8rem, 3vw, 2.4rem) clamp(1.4rem, 3vw, 2rem);
  background: var(--color-navy-deep);
  border: 1px solid var(--color-line);
  color: var(--color-off-white);
  text-decoration: none;
  transition: transform 0.35s var(--easing),
              border-color 0.35s var(--easing),
              box-shadow 0.35s var(--easing),
              background 0.35s var(--easing);
}
.related-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-gold);
  background: #142545;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.28);
}

.related-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border: 1px solid var(--color-line);
  border-radius: 50%;
  color: var(--color-gold);
  margin-bottom: 0.3rem;
  transition: color 0.35s var(--easing), border-color 0.35s var(--easing);
}
.related-card:hover .related-card__icon {
  color: var(--color-gold-light);
  border-color: var(--color-gold-light);
}

.related-card__title {
  font-family: var(--font-serif-jp);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--color-off-white);
  margin: 0;
}

.related-card__desc {
  font-size: 0.86rem;
  line-height: 1.75;
  letter-spacing: 0.04em;
  color: rgba(245, 245, 240, 0.78);
  margin: 0;
}
.related-card__desc small {
  display: inline-block;
  font-size: 0.78em;
  letter-spacing: 0.08em;
  color: var(--color-gold-light);
}

.related-card__cta {
  display: inline-block;
  margin-top: 0.4rem;
  font-family: var(--font-serif-en), var(--font-serif-jp);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold);
  border-bottom: 1px solid rgba(201, 169, 97, 0.4);
  padding-bottom: 2px;
  transition: color 0.35s var(--easing), border-color 0.35s var(--easing);
}
.related-card:hover .related-card__cta {
  color: var(--color-gold-light);
  border-bottom-color: var(--color-gold-light);
}

/* =====================================================================
   FOOTER
   ===================================================================== */
.footer {
  background: var(--color-navy-deep);
  color: rgba(245, 245, 240, 0.72);
  padding: clamp(3rem, 7vw, 5rem) 0 2.5rem;
  text-align: center;
  position: relative;
}
.footer::before {
  content: "";
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 1px;
  background: var(--color-gold);
}

.footer__brand {
  font-family: var(--font-serif-jp);
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--color-off-white);
  margin-bottom: 0.3rem;
}
.footer__tagline {
  font-family: var(--font-serif-en);
  font-size: 0.82rem;
  letter-spacing: 0.32em;
  color: var(--color-gold);
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.footer__meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.6rem;
  max-width: 540px;
  margin: 0 auto clamp(2rem, 4vw, 3rem);
  text-align: left;
}
@media (min-width: 600px) {
  .footer__meta { gap: 0.45rem; }
}
.footer__meta > div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 1rem;
  font-size: 0.85rem;
  line-height: 1.9;
  letter-spacing: 0.04em;
  border-bottom: 1px dashed rgba(201, 169, 97, 0.18);
  padding-bottom: 0.5rem;
}
.footer__meta dt {
  font-family: var(--font-serif-en), var(--font-serif-jp);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  color: var(--color-gold);
  text-transform: uppercase;
  padding-top: 0.18em;
}
.footer__meta dd { margin: 0; }
.footer__meta a {
  color: rgba(245, 245, 240, 0.92);
  border-bottom: 1px solid rgba(201, 169, 97, 0.3);
  padding-bottom: 1px;
}
.footer__meta a:hover {
  color: var(--color-gold-light);
  border-bottom-color: var(--color-gold);
}

.footer__copy {
  font-family: var(--font-serif-en);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: rgba(245, 245, 240, 0.4);
  margin-top: 1.5rem;
}
.footer__copy small { font-size: inherit; }

/* =====================================================================
   CTA Banner（▼ 申し込みはこちらまで ▼ / Canva参考デザイン由来）
   ===================================================================== */
.cta-banner {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: clamp(0.9rem, 2vw, 1.5em);
  padding: clamp(0.9em, 1.5vw, 1.05em) clamp(1.6em, 4vw, 2.8em);
  font-family: var(--font-serif-jp);
  font-size: clamp(0.9rem, 1.4vw, 1rem);
  font-weight: 500;
  letter-spacing: 0.22em;
  text-indent: 0.22em; /* compensate for letter-spacing */
  color: var(--color-navy);
  background: var(--color-off-white);
  border: 1px solid var(--color-gold);
  text-decoration: none;
  position: relative;
  transition: background 0.4s var(--easing), transform 0.4s var(--easing), box-shadow 0.4s var(--easing), color 0.4s var(--easing);
  cursor: pointer;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06), 0 12px 30px rgba(0, 0, 0, 0.18);
}

.cta-banner__triangle {
  display: inline-block;
  font-size: 0.78em;
  line-height: 1;
  letter-spacing: 0;
  text-indent: 0;
  color: var(--color-gold);
  transform: translateY(-1px);
  transition: color 0.4s var(--easing), transform 0.4s var(--easing);
}

.cta-banner__text {
  display: inline-block;
  white-space: nowrap;
}

.cta-banner:hover {
  background: #fff;
  color: var(--color-navy-deep);
  transform: scale(1.02);
  box-shadow: 0 2px 0 rgba(255, 255, 255, 0.08), 0 18px 40px rgba(0, 0, 0, 0.28);
}
.cta-banner:hover .cta-banner__triangle {
  color: var(--color-gold-dark);
  transform: translateY(1px);
}

.cta-banner:focus-visible {
  outline: 2px solid var(--color-gold-light);
  outline-offset: 4px;
}

/* =====================================================================
   Lecture card photo
   ===================================================================== */
.lecture-card__photo {
  width: 100%;
  /* aspect-ratioで両カードの枠形状を統一しつつ、自然な比率を保つ */
  aspect-ratio: 16 / 10;
  max-width: 100%;
  margin: 1rem 0 1.25rem;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--color-gold);
  /* navy系統に統一して、case_lecture01の黒背景と馴染ませる */
  background: var(--color-navy-deep);
  position: relative;
  display: block;
  flex-shrink: 0;
}
.lecture-card__photo img {
  position: absolute;
  inset: 0;
  width: 100% !important;
  height: 100% !important;
  max-width: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
}
/* 個別調整: 被写体中心を視覚的に揃える */
/* LECTURE 01 (case_lecture02.jpg): ドアップ — 中央でOK */
.lecture-card:nth-of-type(1) .lecture-card__photo img {
  object-position: center 50%;
}
/* LECTURE 02 (case_lecture01.jpg): 前歯6本 — 歯列が中央やや上にあるので少し上寄せ */
.lecture-card:nth-of-type(2) .lecture-card__photo img {
  object-position: center 40%;
}

/* =====================================================================
   Print
   ===================================================================== */
@media print {
  .hero__scroll, .cta-button, .cta-banner { display: none !important; }
  body { background: #fff; color: #000; }
}