/* ========================================
   CSS Custom Properties
======================================== */
:root {
  --color-primary:      #1A2F4E;
  --color-primary-dark: #0D1F35;
  --color-accent:       #B8960C;
  --color-accent-dark:  #7A6000;
  --color-accent-light: #F0E0A0;
  --color-bg:           #FFFFFF;
  --color-bg-sub:       #F5F6F8;
  --color-text:         #1A1A1A;
  --color-text-sub:     #666666;
  --color-border:       #E0E0E0;
  --color-cta-hover:    #9A7A08;

  --font-serif: 'Noto Serif JP', serif;
  --font-sans:  'Noto Sans JP', sans-serif;

  --container-max: 1080px;
  --container-px:  40px;
  --section-py:    80px;
}

/* ========================================
   Base
======================================== */
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text);
  background: var(--color-bg);
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
}

section {
  padding: var(--section-py) 0;
  border-bottom: 1px solid var(--color-border);
}

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

.section-title {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.5;
  text-align: center;
  margin-bottom: 48px;
}

/* フェードインアニメーション */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ========================================
   S1: Hero
======================================== */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 80px 0;
  border-bottom: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: 60% 40%;
  gap: 48px;
  align-items: center;
}

.hero__text { color: #fff; }

.hero__label {
  display: block;
  width: 48px;
  height: 3px;
  background: var(--color-accent);
  margin-bottom: 16px;
}

.hero__catch {
  font-family: var(--font-serif);
  font-size: 48px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 16px;
}

.hero__sub {
  font-size: 16px;
  color: rgba(255,255,255,0.8);
  margin-bottom: 32px;
}

.hero__lead {
  font-size: 15px;
  color: rgba(255,255,255,0.85);
  line-height: 2.0;
  margin-bottom: 40px;
  white-space: pre-line;
}

.hero__photo img {
  width: 100%;
  max-width: 460px;
  border-radius: 8px;
  margin: 0 auto;
}

/* ========================================
   CTA Button（共通）
======================================== */
.btn-cta {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 700;
  padding: 20px 56px;
  border-radius: 4px;
  transition: background 0.2s ease;
  cursor: pointer;
}
.btn-cta:hover { background: var(--color-cta-hover); }
.btn-cta:disabled,
.btn-cta[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ========================================
   S2: こんな方へ
======================================== */
.target__list { max-width: 720px; margin: 0 auto 40px; }

.target__item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border-left: 3px solid var(--color-accent-light);
  margin-bottom: 20px;
  background: var(--color-bg);
  border-radius: 0 4px 4px 0;
}

.target__check {
  color: var(--color-accent);
  font-size: 18px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.target__close {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--color-primary);
  text-align: center;
  margin-top: 40px;
}

/* ========================================
   S3: コーチ紹介
======================================== */
.profile__inner {
  display: grid;
  grid-template-columns: 35% 1fr;
  gap: 56px;
  align-items: start;
}

.profile__photo img {
  width: 100%;
  max-width: 320px;
  border-radius: 4px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.12);
}

.profile__name {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.profile__name-en {
  font-size: 14px;
  color: var(--color-text-sub);
  letter-spacing: 0.1em;
  margin-bottom: 24px;
}

.profile__bio {
  font-size: 15px;
  line-height: 2.0;
  margin-bottom: 32px;
}

.profile__badges {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 32px;
}

.badge {
  background: var(--color-primary);
  color: #fff;
  padding: 16px 12px;
  border-radius: 4px;
  text-align: center;
}

.badge__num {
  display: block;
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.2;
}

.badge__label {
  display: block;
  font-size: 11px;
  line-height: 1.5;
  margin-top: 4px;
  opacity: 0.85;
}

.profile__certs {
  font-size: 14px;
  line-height: 2.0;
}

.profile__certs li::before {
  content: '◆';
  color: var(--color-accent);
  margin-right: 8px;
  font-size: 10px;
}

/* ========================================
   S4: サービス内容
======================================== */
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}

.feature-card {
  background: var(--color-bg);
  border-top: 4px solid var(--color-accent);
  border-radius: 0 0 4px 4px;
  padding: 32px 24px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.feature-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
  transform: translateY(-2px);
}

.feature-card__num {
  font-family: var(--font-serif);
  font-size: 48px;
  font-weight: 700;
  color: var(--color-accent-light);
  line-height: 1;
  margin-bottom: 12px;
}

.feature-card__title {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

/* セッション詳細 */
.session-detail {
  max-width: 560px;
  margin: 0 auto 56px;
  background: var(--color-bg);
  border-radius: 4px;
  padding: 28px 32px;
  border: 1px solid var(--color-border);
}

.session-detail__title {
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.session-detail dl {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 8px 16px;
  font-size: 15px;
}

.session-detail dt { font-weight: 700; color: var(--color-text-sub); }

/* STEPフロー */
.steps { display: flex; gap: 0; }

.step {
  flex: 1;
  text-align: center;
  position: relative;
  padding: 0 8px;
}

.step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 16px;
  right: -1px;
  width: calc(100%);
  height: 1px;
  border-top: 1px dashed var(--color-border);
  z-index: 0;
}

.step__badge {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  position: relative;
  z-index: 1;
}

.step__title {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.step__desc { font-size: 12px; color: var(--color-text-sub); }

/* ========================================
   S5: 受講者の声
======================================== */
.voices__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.voice-card {
  background: var(--color-bg-sub);
  border-radius: 8px;
  padding: 28px 24px;
  position: relative;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.voice-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.10);
  transform: translateY(-2px);
}

.voice-card__quote {
  font-family: var(--font-serif);
  font-size: 48px;
  color: var(--color-accent-light);
  line-height: 1;
  margin-bottom: 8px;
}

.voice-card__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.voice-card__body { font-size: 14px; line-height: 1.9; }

.voice-card__attr {
  font-size: 13px;
  color: var(--color-text-sub);
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}

/* ========================================
   S6: 料金プラン
======================================== */
.pricing__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.pricing-card {
  border-radius: 8px;
  padding: 32px 24px;
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  position: relative;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.pricing-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.10);
  transform: translateY(-2px);
}

.pricing-card--recommended {
  border-color: var(--color-accent);
}

.pricing-card--premium {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #fff;
}

.pricing-card__badge {
  position: absolute;
  top: 0;
  right: 0;
  background: var(--color-accent);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 0 6px 0 4px;
}

.pricing-card__name {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text-sub);
  margin-bottom: 8px;
}

.pricing-card--premium .pricing-card__name { color: rgba(255,255,255,0.7); }

.pricing-card__price {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: 4px;
}

.pricing-card--premium .pricing-card__price { color: var(--color-accent); }

.pricing-card__unit {
  font-size: 14px;
  color: var(--color-text-sub);
  margin-bottom: 20px;
}

.pricing-card--premium .pricing-card__unit { color: rgba(255,255,255,0.6); }

.pricing-card__desc { font-size: 14px; line-height: 1.8; }
.pricing-card--premium .pricing-card__desc { color: rgba(255,255,255,0.85); }

.pricing__note {
  font-size: 13px;
  color: var(--color-text-sub);
  text-align: center;
  line-height: 2.0;
}

/* ========================================
   S7: FAQ（details/summary）
======================================== */
.faq__list { max-width: 760px; margin: 0 auto; }

.faq__list details {
  margin-bottom: 8px;
  border-radius: 4px;
  overflow: hidden;
}

.faq__list summary {
  background: var(--color-bg-sub);
  padding: 18px 48px 18px 20px;
  font-weight: 700;
  cursor: pointer;
  position: relative;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

.faq__list summary::-webkit-details-marker { display: none; }

.faq__q-prefix {
  color: var(--color-accent);
  font-family: var(--font-serif);
  font-size: 18px;
  flex-shrink: 0;
}

.faq__arrow {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 12px;
  color: var(--color-text-sub);
  transition: transform 0.2s ease;
}

details[open] .faq__arrow { transform: translateY(-50%) rotate(180deg); }

.faq__answer {
  background: var(--color-bg);
  padding: 16px 20px 16px 40px;
  border-left: 3px solid var(--color-accent);
  font-size: 15px;
  line-height: 1.9;
}

/* ========================================
   S8: クロージングCTA
======================================== */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  text-align: center;
  padding: 100px var(--container-px);
  border-bottom: none;
}

.cta-section .section-title { color: #fff; }

.cta-section__lead {
  font-size: 16px;
  color: rgba(255,255,255,0.85);
  line-height: 2.0;
  margin-bottom: 40px;
  white-space: pre-line;
}

.cta-section__btn-wrap { margin-bottom: 16px; }

.cta-section__btn-wrap .btn-cta {
  display: block;
  width: fit-content;
  margin: 0 auto;
}

.cta-section__note {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
}

.cta-section__sample-note {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  margin-top: 16px;
}

/* ========================================
   Footer
======================================== */
.footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.7);
  padding: 32px 40px;
  font-size: 13px;
  text-align: center;
}

.footer__copy { margin-bottom: 12px; }

.footer__disclaimer {
  color: rgba(255,255,255,0.5);
  font-size: 12px;
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 12px;
  line-height: 1.8;
}

/* ========================================
   Responsive: Tablet (768px - 1023px)
======================================== */
@media (max-width: 1023px) {
  :root {
    --section-py: 64px;
    --container-px: 28px;
  }

  .hero__catch { font-size: 36px; }

  /* S3: 縦積み */
  .profile__inner {
    grid-template-columns: 1fr;
  }
  .profile__photo { text-align: center; }
  .profile__photo img { margin: 0 auto; }
  .profile__badges { grid-template-columns: repeat(2, 1fr); }

  /* S4: 2+1カラム（3枚目を中央寄せ） */
  .features__grid { grid-template-columns: repeat(2, 1fr); }
  .feature-card:last-child {
    grid-column: 1 / -1;
    max-width: 50%;
    margin: 0 auto;
  }

  /* S4: STEPを縦積み・コネクター線を非表示 */
  .steps { flex-direction: column; gap: 24px; }
  .step::after { display: none; }

  /* S5: 縦積み */
  .voices__grid { grid-template-columns: 1fr; }

  /* S6: 縦積み */
  .pricing__grid { grid-template-columns: 1fr; }
}

/* ========================================
   Responsive: SP (〜767px)
======================================== */
@media (max-width: 767px) {
  :root {
    --section-py: 56px;
    --container-px: 20px;
  }

  .section-title { font-size: 24px; margin-bottom: 32px; }

  /* S1 */
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero__label { margin: 0 auto 16px; }
  .hero__catch { font-size: 32px; }
  .hero__photo { order: -1; }
  .hero__photo img { max-width: 280px; margin: 0 auto; }

  /* S3 */
  .profile__badges { grid-template-columns: repeat(2, 1fr); }

  /* S4 */
  .features__grid { grid-template-columns: 1fr; }

  /* CTA */
  .btn-cta { padding: 18px 32px; font-size: 16px; }
  .cta-section { padding: 72px var(--container-px); }
}