@charset "UTF-8";

/* ============================================
   AIまなぼっと - 共通スタイルシート
   SHINWA AI デザインシステム
   navy #0F1B3C / gold #C9A961 / cream #F5F1E8
   ============================================ */

/* ----- リセット ----- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ----- CSS変数 ----- */
:root {
  /* ブランドカラー */
  --color-navy: #0F1B3C;
  --color-navy-light: #1A2A52;
  --color-gold: #C9A961;
  --color-gold-light: #D9BF85;
  --color-gold-dark: #A88A48;
  --color-cream: #F5F1E8;
  --color-cream-light: #FAF7EF;
  --color-cream-dark: #E8E1D0;

  /* テキスト */
  --color-text: #1A1A1A;
  --color-text-sub: #555555;
  --color-text-light: #888888;
  --color-text-inverse: #FAF7EF;

  /* ボーダー・区切り */
  --color-border: #E0DCD0;
  --color-border-strong: #C0B8A0;

  /* システム */
  --color-success: #27AE60;
  --color-error: #C0392B;
  --color-warning: #E67E22;

  /* 先生別カラー */
  --color-gpt: #4A8B4A;
  --color-claude: #0F1B3C;
  --color-gemini: #2E5C8A;

  /* フォント */
  --font-display: 'Cormorant Garamond', 'Noto Serif JP', serif;
  --font-serif: 'Noto Serif JP', serif;
  --font-sans: 'Noto Sans JP', sans-serif;

  /* レイアウト */
  --container-max: 1100px;
  --container-padding: 24px;
  --header-height: 88px;
  --section-padding: 96px;
  --section-padding-sp: 56px;

  /* シャドウ */
  --shadow-sm: 0 2px 8px rgba(15, 27, 60, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 27, 60, 0.08);
  --shadow-lg: 0 16px 48px rgba(15, 27, 60, 0.12);

  /* セーフエリア */
  --safe-top: env(safe-area-inset-top);
  --safe-bottom: env(safe-area-inset-bottom);
  --safe-left: env(safe-area-inset-left);
  --safe-right: env(safe-area-inset-right);
}

/* ----- 基本スタイル ----- */
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.8;
  color: var(--color-text);
  background-color: var(--color-cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--color-navy);
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover {
  opacity: 0.7;
}

ul, ol {
  list-style: none;
}

/* ----- 共通レイアウト ----- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section {
  padding: var(--section-padding) 0;
}

/* PC/SP表示切り替え */
.sp-only {
  display: none;
}

@media (max-width: 768px) {
  .sp-only {
    display: inline;
  }
  .pc-only {
    display: none;
  }
  .section {
    padding: var(--section-padding-sp) 0;
  }
}

/* ----- セクション共通ヘッダー ----- */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-eyebrow {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.3em;
  color: var(--color-gold-dark);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-navy);
  letter-spacing: 0.04em;
}

.section-lead {
  margin-top: 24px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text-sub);
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 768px) {
  .section-header {
    margin-bottom: 40px;
  }
}

/* ============================================
   ヘッダー
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: rgba(245, 241, 232, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding-top: var(--safe-top);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 24px;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 6px;
  color: var(--color-navy);
}

.logo-mark {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-gold-dark);
}

.logo-text {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-navy);
  letter-spacing: 0.05em;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 1px;
  background-color: var(--color-gold);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link-login {
  color: var(--color-text-sub);
}

.btn-header-cta {
  background-color: var(--color-navy);
  color: var(--color-text-inverse);
  padding: 10px 22px;
  border-radius: 2px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  border: 1px solid var(--color-navy);
  transition: all 0.2s ease;
}

.btn-header-cta:hover {
  background-color: var(--color-gold-dark);
  border-color: var(--color-gold-dark);
  opacity: 1;
}

@media (max-width: 900px) {
  .header-nav {
    display: none;
  }
}

@media (max-width: 480px) {
  .logo-mark {
    font-size: 22px;
  }
  .logo-text {
    font-size: 16px;
  }
  .btn-header-cta {
    padding: 8px 14px;
    font-size: 12px;
  }
}

/* ============================================
   ボタン共通
   ============================================ */
.btn-primary {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  background-color: var(--color-navy);
  color: var(--color-text-inverse);
  padding: 20px 48px;
  border-radius: 2px;
  border: 1px solid var(--color-navy);
  font-family: var(--font-sans);
  text-align: center;
  transition: all 0.25s ease;
  box-shadow: var(--shadow-md);
  min-width: 280px;
}

.btn-primary:hover {
  background-color: var(--color-gold-dark);
  border-color: var(--color-gold-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  opacity: 1;
}

.btn-primary-main {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.btn-primary-sub {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.04em;
  opacity: 0.9;
  margin-top: 6px;
}

.btn-primary-large {
  padding: 24px 64px;
}

.btn-primary-large .btn-primary-main {
  font-size: 19px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 18px 36px;
  background-color: transparent;
  color: var(--color-navy);
  border: 1px solid var(--color-navy);
  border-radius: 2px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.06em;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background-color: var(--color-navy);
  color: var(--color-text-inverse);
  opacity: 1;
}

@media (max-width: 480px) {
  .btn-primary {
    min-width: 100%;
    padding: 18px 24px;
  }
  .btn-primary-main {
    font-size: 15px;
  }
  .btn-secondary {
    padding: 16px 24px;
    font-size: 14px;
  }
}

/* ============================================
   1. ファーストビュー
   ============================================ */
.hero {
  padding: 100px 0 120px;
  background:
    radial-gradient(ellipse at top right, rgba(201, 169, 97, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at bottom left, rgba(15, 27, 60, 0.04) 0%, transparent 60%),
    var(--color-cream);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(201, 169, 97, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-inner {
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}

.eyebrow-line {
  width: 40px;
  height: 1px;
  background-color: var(--color-gold);
}

.eyebrow-text {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.25em;
  color: var(--color-gold-dark);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(34px, 6vw, 56px);
  font-weight: 600;
  line-height: 1.45;
  color: var(--color-navy);
  letter-spacing: 0.04em;
  margin-bottom: 20px;
}

.hero-title-jp {
  display: block;
}

.hero-sub-en {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 500;
  font-style: italic;
  color: var(--color-gold-dark);
  letter-spacing: 0.08em;
  margin-bottom: 36px;
}

.hero-description {
  font-size: 17px;
  line-height: 2;
  color: var(--color-text-sub);
  margin-bottom: 48px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-description strong {
  color: var(--color-navy);
  font-weight: 700;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-trust {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  margin-top: 40px;
}

.trust-text {
  font-size: 13px;
  color: var(--color-text-light);
  letter-spacing: 0.05em;
}

@media (max-width: 768px) {
  .hero {
    padding: 60px 0 80px;
  }
  .hero-description {
    font-size: 15px;
    line-height: 1.95;
  }
}

/* ============================================
   2. お悩みセクション
   ============================================ */
.worries-section {
  background-color: var(--color-cream-light);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.worries-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 56px;
}

.worry-card {
  background-color: #FFFFFF;
  padding: 40px 32px;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.worry-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background-color: var(--color-gold);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.3s ease;
}

.worry-card:hover {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.worry-card:hover::before {
  transform: scaleY(1);
}

.worry-number {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 500;
  font-style: italic;
  color: var(--color-gold);
  margin-bottom: 16px;
}

.worry-title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--color-navy);
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.worry-text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-text-sub);
}

.worries-conclusion {
  text-align: center;
  font-family: var(--font-serif);
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 600;
  color: var(--color-navy);
  letter-spacing: 0.05em;
}

.worries-conclusion strong {
  color: var(--color-gold-dark);
  font-weight: 700;
}

@media (max-width: 768px) {
  .worries-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .worry-card {
    padding: 32px 24px;
  }
  .worry-title {
    font-size: 18px;
  }
}

/* ============================================
   3. ソリューションセクション
   ============================================ */
.solution-section {
  background-color: var(--color-cream);
}

.solution-body {
  max-width: 760px;
  margin: 0 auto;
}

.solution-lead {
  font-size: 17px;
  line-height: 2;
  color: var(--color-text-sub);
  text-align: center;
  margin-bottom: 48px;
}

.solution-lead strong {
  color: var(--color-navy);
  font-weight: 700;
}

.solution-conversation {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 48px;
  box-shadow: var(--shadow-sm);
}

.conversation-bubble {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-width: 85%;
}

.conversation-bubble.bot {
  align-self: flex-start;
}

.conversation-bubble.user {
  align-self: flex-end;
  align-items: flex-end;
}

.bubble-speaker {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-text-light);
}

.bubble-text {
  font-size: 15px;
  line-height: 1.75;
  padding: 14px 20px;
  border-radius: 14px;
}

.conversation-bubble.bot .bubble-text {
  background-color: var(--color-cream-light);
  color: var(--color-text);
  border-bottom-left-radius: 2px;
}

.conversation-bubble.user .bubble-text {
  background-color: var(--color-navy);
  color: var(--color-text-inverse);
  border-bottom-right-radius: 2px;
}

.solution-conclusion {
  font-size: 16px;
  line-height: 2;
  color: var(--color-text);
  text-align: center;
}

.solution-conclusion strong {
  color: var(--color-navy);
  font-weight: 700;
  border-bottom: 2px solid var(--color-gold);
  padding-bottom: 2px;
}

@media (max-width: 768px) {
  .solution-conversation {
    padding: 24px 18px;
  }
  .bubble-text {
    font-size: 14px;
    padding: 12px 16px;
  }
}

/* ============================================
   4. 特徴セクション
   ============================================ */
.features-section {
  background-color: var(--color-cream-light);
  border-top: 1px solid var(--color-border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background-color: #FFFFFF;
  padding: 48px 32px;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  position: relative;
  transition: all 0.3s ease;
}

.feature-card:hover {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.feature-icon-wrap {
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.feature-number {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 500;
  font-style: italic;
  color: var(--color-gold);
  line-height: 1;
}

.feature-title {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--color-navy);
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.feature-lead {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-gold-dark);
  margin-bottom: 16px;
  letter-spacing: 0.03em;
}

.feature-text {
  font-size: 14px;
  line-height: 1.95;
  color: var(--color-text-sub);
  margin-bottom: 24px;
}

.teacher-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.teacher-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background-color: var(--color-cream-light);
  border-left: 3px solid;
  border-radius: 2px;
  font-size: 12px;
}

.teacher-item.teacher-gpt {
  border-left-color: var(--color-gpt);
}

.teacher-item.teacher-claude {
  border-left-color: var(--color-claude);
}

.teacher-item.teacher-gemini {
  border-left-color: var(--color-gemini);
}

.teacher-mark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  color: var(--color-navy);
}

.teacher-name {
  font-weight: 500;
  color: var(--color-text);
}

.teacher-role {
  margin-left: auto;
  color: var(--color-text-sub);
  font-size: 11px;
}

@media (max-width: 900px) {
  .features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .feature-card {
    padding: 36px 28px;
  }
}

/* ============================================
   5. 学習の流れセクション
   ============================================ */
.flow-section {
  background-color: var(--color-cream);
}

.flow-steps {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  align-items: stretch;
  gap: 16px;
}

.flow-step {
  background-color: #FFFFFF;
  padding: 32px 24px;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  text-align: center;
  position: relative;
  transition: all 0.3s ease;
}

.flow-step:hover {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-md);
}

.flow-step-number {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  font-style: italic;
  color: var(--color-gold-dark);
  letter-spacing: 0.15em;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.flow-step-title {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-navy);
  line-height: 1.5;
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.flow-step-text {
  font-size: 13px;
  line-height: 1.85;
  color: var(--color-text-sub);
  text-align: left;
}

.flow-arrow {
  width: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.flow-arrow::after {
  content: '→';
  font-size: 18px;
  color: var(--color-gold);
  font-weight: 300;
}

@media (max-width: 900px) {
  .flow-steps {
    grid-template-columns: 1fr;
  }
  .flow-arrow {
    width: 100%;
    height: 24px;
  }
  .flow-arrow::after {
    content: '↓';
    font-size: 20px;
  }
}

/* ============================================
   6. コースセクション
   ============================================ */
.courses-section {
  background-color: var(--color-cream-light);
  border-top: 1px solid var(--color-border);
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.course-card {
  background-color: #FFFFFF;
  padding: 40px 32px;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  transition: all 0.3s ease;
  position: relative;
}

.course-card-featured {
  background-color: var(--color-navy);
  color: var(--color-text-inverse);
  border-color: var(--color-navy);
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}

.course-card-featured .course-level,
.course-card-featured .course-name,
.course-card-featured .course-tagline,
.course-card-featured .course-list li {
  color: var(--color-text-inverse);
}

.course-card-featured .course-list li::before {
  background-color: var(--color-gold);
}

.course-card-featured::before {
  content: 'Popular';
  position: absolute;
  top: -12px;
  right: 24px;
  background-color: var(--color-gold);
  color: var(--color-navy);
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  padding: 4px 16px;
  border-radius: 2px;
}

.course-level {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  font-style: italic;
  color: var(--color-gold-dark);
  letter-spacing: 0.2em;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.course-name {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--color-navy);
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.course-tagline {
  font-size: 14px;
  color: var(--color-text-sub);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.course-card-featured .course-tagline {
  border-bottom-color: rgba(255, 255, 255, 0.2);
}

.course-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.course-list li {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text);
  padding-left: 18px;
  position: relative;
}

.course-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 1px;
  background-color: var(--color-gold);
}

@media (max-width: 900px) {
  .courses-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .course-card-featured {
    transform: none;
  }
}

/* ============================================
   7. 料金プランセクション
   ============================================ */
.price-section {
  background-color: var(--color-cream);
}

.price-card {
  max-width: 720px;
  margin: 0 auto;
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.price-card-header {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
  color: var(--color-text-inverse);
  padding: 36px 40px;
  text-align: center;
  position: relative;
}

.price-card-header::before {
  content: '';
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 1px;
  background-color: var(--color-gold);
}

.price-plan-name {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.price-plan-target {
  font-size: 13px;
  letter-spacing: 0.1em;
  opacity: 0.85;
}

.price-card-body {
  padding: 40px;
}

.price-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
  gap: 24px;
}

.price-row:last-child {
  border-bottom: none;
}

.price-row-label {
  flex: 1;
}

.price-label-main {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 4px;
}

.price-label-sub {
  font-size: 13px;
  color: var(--color-text-light);
}

.price-row-value {
  text-align: right;
  display: flex;
  align-items: baseline;
  gap: 4px;
  justify-content: flex-end;
}

.price-currency {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 500;
  color: var(--color-gold-dark);
}

.price-amount {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 600;
  color: var(--color-navy);
  line-height: 1;
  letter-spacing: 0.02em;
}

.price-unit {
  font-size: 12px;
  color: var(--color-text-sub);
  margin-left: 4px;
}

.price-card-footer {
  background-color: var(--color-cream-light);
  padding: 28px 40px;
  border-top: 1px solid var(--color-border);
}

.price-footer-text {
  font-size: 13px;
  line-height: 1.85;
  color: var(--color-text-sub);
  margin-bottom: 8px;
}

.price-footer-text:last-child {
  margin-bottom: 0;
}

.price-footer-text strong {
  color: var(--color-navy);
  font-weight: 600;
}

@media (max-width: 600px) {
  .price-card-header {
    padding: 28px 24px;
  }
  .price-plan-name {
    font-size: 20px;
  }
  .price-card-body {
    padding: 24px;
  }
  .price-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 20px 0;
  }
  .price-row-value {
    text-align: left;
    align-self: flex-end;
  }
  .price-amount {
    font-size: 32px;
  }
  .price-card-footer {
    padding: 20px 24px;
  }
}

/* ============================================
   8. ご利用までの流れセクション
   ============================================ */
.signup-flow-section {
  background-color: var(--color-cream-light);
  border-top: 1px solid var(--color-border);
}

.signup-steps {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.signup-step {
  display: flex;
  gap: 24px;
  background-color: #FFFFFF;
  padding: 28px 32px;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  align-items: flex-start;
  position: relative;
  transition: all 0.3s ease;
}

.signup-step:hover {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-sm);
}

.signup-step-num {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background-color: var(--color-navy);
  color: var(--color-gold);
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.signup-step-body {
  flex: 1;
}

.signup-step-title {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}

.signup-step-text {
  font-size: 14px;
  line-height: 1.85;
  color: var(--color-text-sub);
}

@media (max-width: 480px) {
  .signup-step {
    padding: 20px 20px;
    gap: 16px;
  }
  .signup-step-num {
    width: 40px;
    height: 40px;
    font-size: 18px;
  }
}

/* ============================================
   9. FAQセクション
   ============================================ */
.faq-section {
  background-color: var(--color-cream);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item[open] {
  border-color: var(--color-gold);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 22px 28px;
  cursor: pointer;
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 600;
  color: var(--color-navy);
  line-height: 1.6;
  list-style: none;
  position: relative;
  transition: background-color 0.2s ease;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question:hover {
  background-color: var(--color-cream-light);
}

.faq-question::after {
  content: '+';
  position: absolute;
  right: 28px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 24px;
  color: var(--color-gold-dark);
  font-weight: 300;
  transition: transform 0.3s ease;
}

.faq-item[open] .faq-question::after {
  content: '−';
}

.faq-q-mark {
  flex-shrink: 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--color-gold-dark);
  line-height: 1;
  font-style: italic;
}

.faq-q-text {
  flex: 1;
  padding-right: 28px;
}

.faq-answer {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 0 28px 28px;
  border-top: 1px solid var(--color-border);
  padding-top: 22px;
}

.faq-a-mark {
  flex-shrink: 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--color-navy);
  line-height: 1;
  font-style: italic;
}

.faq-a-text {
  flex: 1;
  font-size: 14px;
  line-height: 1.95;
  color: var(--color-text-sub);
}

.faq-a-text p {
  margin-bottom: 12px;
}

.faq-a-text p:last-child {
  margin-bottom: 0;
}

.faq-a-text strong {
  color: var(--color-navy);
  font-weight: 600;
}

@media (max-width: 600px) {
  .faq-question {
    padding: 18px 20px;
    padding-right: 56px;
    font-size: 15px;
  }
  .faq-question::after {
    right: 20px;
  }
  .faq-answer {
    padding: 18px 20px 20px;
  }
}

/* ============================================
   10. 運営団体セクション
   ============================================ */
.about-section {
  background-color: var(--color-cream-light);
  border-top: 1px solid var(--color-border);
}

.about-card {
  max-width: 820px;
  margin: 0 auto;
  background-color: #FFFFFF;
  padding: 56px 48px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.about-eyebrow {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.3em;
  color: var(--color-gold-dark);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.about-title {
  font-family: var(--font-serif);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 600;
  color: var(--color-navy);
  line-height: 1.5;
  letter-spacing: 0.06em;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.about-text {
  font-size: 15px;
  line-height: 2;
  color: var(--color-text-sub);
  text-align: left;
  margin-bottom: 20px;
}

.about-text strong {
  color: var(--color-navy);
  font-weight: 600;
}

.about-meta {
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px 24px;
  text-align: left;
}

.about-meta-key {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-light);
  letter-spacing: 0.05em;
}

.about-meta-val {
  font-size: 14px;
  color: var(--color-text);
  font-weight: 500;
}

@media (max-width: 600px) {
  .about-card {
    padding: 36px 24px;
  }
  .about-meta {
    grid-template-columns: 100px 1fr;
    gap: 12px 16px;
  }
}

/* ============================================
   11. 最終CTAセクション
   ============================================ */
.final-cta-section {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
  position: relative;
  overflow: hidden;
  color: var(--color-text-inverse);
}

.final-cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(201, 169, 97, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.final-cta-section::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(201, 169, 97, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.final-cta-inner {
  text-align: center;
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
}

.final-cta-eyebrow {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.3em;
  color: var(--color-gold);
  text-transform: uppercase;
  margin-bottom: 24px;
}

.final-cta-title {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--color-text-inverse);
  letter-spacing: 0.06em;
  margin-bottom: 32px;
}

.final-cta-text {
  font-size: 16px;
  line-height: 2;
  color: rgba(250, 247, 239, 0.85);
  margin-bottom: 48px;
}

.final-cta-buttons {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.final-cta-section .btn-primary {
  background-color: var(--color-gold);
  color: var(--color-navy);
  border-color: var(--color-gold);
}

.final-cta-section .btn-primary:hover {
  background-color: var(--color-gold-light);
  border-color: var(--color-gold-light);
}

.final-cta-note {
  font-size: 13px;
  color: rgba(250, 247, 239, 0.65);
  letter-spacing: 0.05em;
}

/* ============================================
   フッター
   ============================================ */
.site-footer {
  background-color: var(--color-navy);
  color: rgba(250, 247, 239, 0.8);
  padding: 64px 0 32px;
  padding-bottom: calc(32px + var(--safe-bottom));
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 24px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.footer-logo {
  display: flex;
  align-items: baseline;
  gap: 6px;
  color: var(--color-text-inverse);
}

.footer-logo-mark {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-gold);
}

.footer-logo-text {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-text-inverse);
}

.footer-tagline {
  font-size: 12px;
  color: rgba(250, 247, 239, 0.6);
  letter-spacing: 0.08em;
}

.footer-meta {
  text-align: center;
  border-top: 1px solid rgba(250, 247, 239, 0.15);
  border-bottom: 1px solid rgba(250, 247, 239, 0.15);
  padding: 20px 0;
  width: 100%;
  max-width: 480px;
}

.footer-operator,
.footer-address {
  font-size: 12px;
  color: rgba(250, 247, 239, 0.7);
  letter-spacing: 0.05em;
  line-height: 1.8;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
}

.footer-link {
  color: rgba(250, 247, 239, 0.75);
  font-size: 13px;
  letter-spacing: 0.05em;
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: var(--color-gold);
  opacity: 1;
}

.footer-copyright {
  font-size: 11px;
  color: rgba(250, 247, 239, 0.4);
  letter-spacing: 0.1em;
  margin-top: 8px;
}

@media (max-width: 600px) {
  .footer-nav {
    flex-direction: column;
    gap: 12px;
  }
}

/* ============================================
   スクロールアニメーション (オプション)
   ============================================ */
@media (prefers-reduced-motion: no-preference) {
  .worry-card,
  .feature-card,
  .flow-step,
  .course-card,
  .signup-step,
  .faq-item {
    opacity: 1;
  }
}

/* ============================================
   印刷用スタイル
   ============================================ */
@media print {
  .site-header,
  .site-footer,
  .hero-cta,
  .final-cta-section,
  .btn-header-cta {
    display: none;
  }
  body {
    background-color: #FFFFFF;
    color: #000000;
  }
}