/* ==========================================================================
   生成AIプレミアムオンラインサロン LP スタイルシート
   チラシ「ノーコードで作るAIアプリ入門」の色彩・雰囲気を再現・昇華したモダンデザイン
   ========================================================================== */

:root {
  /* カラーパレット（チラシ準拠） */
  --primary-navy: #172554;      /* チラシの最も深い濃紺 */
  --primary-dark: #1e3a8a;      /* 信頼感のあるディープブルー */
  --primary-blue: #1d4ed8;      /* メインの鮮やかなブルー */
  --primary-light: #2563eb;     /* ボタン・強調用ブルー */
  --accent-sky: #0284c7;        /* スカイブルー */
  --accent-cyan: #0ea5e9;       /* 明るいシアン */
  --accent-soft-blue: #38bdf8;  /* ハイライト用ライトスカイ */
  
  /* アクセントカラー */
  --accent-green: #10b981;      /* 初心者・若葉・成功 */
  --accent-amber: #f59e0b;      /* 注意・バッジ・アクセント */
  --accent-gold: #d97706;
  --accent-red: #ef4444;        /* 必須マーク */

  /* 背景色・ニュートラルカラー */
  --bg-white: #ffffff;
  --bg-slate-50: #f8fafc;
  --bg-slate-100: #f1f5f9;
  --bg-sky-50: #f0f9ff;
  --bg-sky-100: #e0f2fe;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --border-light: #e2e8f0;
  --border-focus: #93c5fd;

  /* シャドウ */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 25px -3px rgba(30, 58, 138, 0.12), 0 4px 6px -4px rgba(30, 58, 138, 0.08);
  --shadow-xl: 0 20px 30px -10px rgba(15, 23, 42, 0.18), 0 8px 10px -6px rgba(15, 23, 42, 0.1);
  --shadow-glow: 0 0 25px rgba(37, 99, 235, 0.35);

  /* タイポグラフィ */
  --font-sans: 'Noto Sans JP', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-en: 'Outfit', 'Inter', sans-serif;

  /* その他 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  color: var(--text-main);
  background-color: var(--bg-slate-50);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  font-family: inherit;
}

/* コンテナ */
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

.container-narrow {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 20px;
}

/* セクション共通 */
.section {
  padding: 80px 0;
  position: relative;
}

@media (max-width: 768px) {
  .section {
    padding: 56px 0;
  }
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-subtitle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-sky);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-subtitle::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-sky), var(--accent-soft-blue));
  border-radius: var(--radius-full);
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary-navy);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

@media (max-width: 768px) {
  .section-title {
    font-size: 1.65rem;
  }
}

.section-lead {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-top: 14px;
  line-height: 1.7;
}

/* ==========================================================================
   ヘッダー (Global Header)
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  background: rgba(255, 255, 255, 0.98);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-logo img {
  height: 42px;
  width: auto;
  object-fit: contain;
}

.header-logo-text {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1.25;
}

.header-logo-text span {
  display: block;
  font-size: 0.72rem;
  color: var(--accent-sky);
  font-weight: 600;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-main);
  transition: var(--transition);
  position: relative;
}

.nav-link:hover {
  color: var(--primary-light);
}

.header-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-sky));
  color: #ffffff;
  padding: 10px 22px;
  font-size: 0.9rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 14px rgba(29, 78, 216, 0.3);
  transition: var(--transition);
}

.header-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(29, 78, 216, 0.45);
}

@media (max-width: 860px) {
  .header-nav {
    display: none;
  }
}

/* ==========================================================================
   ヒーローセクション (Hero Section)
   ========================================================================== */
.hero-section {
  padding-top: 130px;
  padding-bottom: 70px;
  background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 70%, #f8fafc 100%);
  position: relative;
  overflow: hidden;
}

/* 背景装飾 */
.hero-bg-circle-1 {
  position: absolute;
  top: -120px;
  right: -100px;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
  pointer-events: none;
}

.hero-bg-circle-2 {
  position: absolute;
  bottom: 0;
  left: -150px;
  width: 450px;
  height: 450px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(29, 78, 216, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}

@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

.hero-badge-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.hero-badge-tag {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  color: var(--primary-dark);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hero-badge-beginner {
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #065f46;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hero-subheading {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--accent-sky);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

@media (max-width: 768px) {
  .hero-subheading {
    font-size: 1.15rem;
  }
}

.hero-title {
  font-size: 2.75rem;
  font-weight: 900;
  color: var(--primary-navy);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }
}

.hero-title .title-accent {
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-sky));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* チラシのメインキャッチコピーボックス */
.hero-catchbox {
  background: linear-gradient(135deg, #0284c7 0%, #1e40af 100%);
  color: #ffffff;
  padding: 24px 28px;
  border-radius: var(--radius-lg);
  margin-bottom: 28px;
  box-shadow: 0 10px 25px -5px rgba(2, 132, 199, 0.35);
  position: relative;
  overflow: hidden;
}

.hero-catchbox::before {
  content: "";
  position: absolute;
  top: -50px;
  right: -50px;
  width: 140px;
  height: 140px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 50%;
}

.hero-catch-title {
  font-size: 1.45rem;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.hero-catch-text {
  font-size: 0.96rem;
  line-height: 1.75;
  opacity: 0.95;
}

/* 開催概要ピルズ */
.hero-meta-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 30px;
}

@media (max-width: 540px) {
  .hero-meta-grid {
    grid-template-columns: 1fr;
  }
}

.hero-meta-item {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-sm);
}

.meta-icon-box {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-sky-50);
  color: var(--accent-sky);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.meta-label {
  font-size: 0.76rem;
  color: var(--text-muted);
  font-weight: 600;
}

.meta-val {
  font-size: 0.98rem;
  font-weight: 800;
  color: var(--primary-navy);
}

.meta-val.price {
  color: #b91c1c;
  font-family: var(--font-en);
  font-size: 1.2rem;
}

/* ヒーローCTAボタン */
.hero-cta-area {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cta-btn-main {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: linear-gradient(135deg, #1d4ed8 0%, #0284c7 100%);
  color: #ffffff;
  font-size: 1.15rem;
  font-weight: 800;
  padding: 18px 36px;
  border-radius: var(--radius-full);
  box-shadow: 0 10px 25px rgba(29, 78, 216, 0.4);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.cta-btn-main::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transform: skewX(-25deg);
  animation: shine 3.5s infinite;
}

@keyframes shine {
  0% { left: -100%; }
  25% { left: 150%; }
  100% { left: 150%; }
}

.cta-btn-main:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 30px rgba(29, 78, 216, 0.5);
}

.cta-note {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ヒーロー右側カード */
.hero-side-card {
  background: #ffffff;
  border-radius: var(--radius-xl);
  padding: 32px;
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: var(--shadow-xl);
  position: relative;
}

.hero-side-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px dashed var(--border-light);
  padding-bottom: 20px;
  margin-bottom: 24px;
}

.date-large-badge {
  display: flex;
  align-items: baseline;
  gap: 4px;
  color: var(--primary-navy);
  font-family: var(--font-en);
}

.date-year {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-sky);
  display: block;
  margin-bottom: -4px;
}

.date-num {
  font-size: 3.2rem;
  font-weight: 900;
  line-height: 1;
}

.date-kanji {
  font-size: 1.3rem;
  font-weight: 800;
  margin-right: 6px;
}

.date-day {
  background: var(--primary-navy);
  color: #ffffff;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
}

.status-badge-live {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #b91c1c;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 6px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #ef4444;
  box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
  animation: pulse-ring 1.8s infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(239, 68, 68, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

/* 講師ミニカード */
.hero-instructor-box {
  display: flex;
  gap: 18px;
  align-items: center;
  background: var(--bg-slate-50);
  border-radius: var(--radius-lg);
  padding: 16px;
  border: 1px solid var(--border-light);
  margin-bottom: 24px;
}

.instructor-avatar {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid #ffffff;
  box-shadow: var(--shadow-md);
  flex-shrink: 0;
}

.instructor-mini-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-sky);
  margin-bottom: 2px;
}

.instructor-mini-name {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--primary-navy);
  margin-bottom: 4px;
}

.instructor-mini-role {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* QRコード & 申込 */
.hero-qr-box {
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  border-radius: var(--radius-lg);
  padding: 18px;
  display: flex;
  align-items: center;
  gap: 16px;
  border: 1px solid #bae6fd;
}

.hero-qr-img {
  width: 82px;
  height: 82px;
  background: #ffffff;
  padding: 4px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.hero-qr-desc {
  font-size: 0.85rem;
  color: var(--primary-navy);
  line-height: 1.45;
}

.hero-qr-desc strong {
  display: block;
  font-size: 0.95rem;
  color: var(--primary-blue);
  margin-bottom: 4px;
}

/* ==========================================================================
   こんな方におすすめ（お悩みチェック）
   ========================================================================== */
.pain-section {
  background: #ffffff;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.pain-card-container {
  background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  max-width: 880px;
  margin: 0 auto;
}

@media (max-width: 640px) {
  .pain-card-container {
    padding: 24px 18px;
  }
}

.pain-badge-header {
  text-align: center;
  margin-bottom: 30px;
}

.pain-badge {
  display: inline-block;
  background: var(--primary-navy);
  color: #ffffff;
  font-size: 1.15rem;
  font-weight: 800;
  padding: 8px 32px;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 12px rgba(23, 37, 84, 0.25);
}

.pain-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.pain-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-md);
  padding: 16px 20px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.pain-item:hover {
  border-color: var(--accent-sky);
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}

.pain-check-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-sky));
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.pain-item-text {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary-navy);
  line-height: 1.5;
}

@media (max-width: 640px) {
  .pain-item-text {
    font-size: 0.95rem;
  }
}

.pain-conclusion {
  text-align: center;
  padding-top: 10px;
}

.pain-conclusion-text {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--primary-blue);
  line-height: 1.5;
}

.pain-conclusion-sub {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-top: 6px;
}

/* ==========================================================================
   本講座の3つの特徴 (3 Core Features)
   ========================================================================== */
.features-section {
  background: var(--bg-slate-50);
}

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

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

.feature-card {
  background: #ffffff;
  border-radius: var(--radius-xl);
  padding: 36px 28px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: #bfdbfe;
}

.feature-top-bar {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--primary-blue), var(--accent-sky));
}

.feature-icon-wrapper {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-dark), var(--accent-sky));
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 24px;
  box-shadow: 0 6px 16px rgba(30, 58, 138, 0.25);
}

.feature-number {
  font-family: var(--font-en);
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--accent-sky);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.feature-card-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary-navy);
  margin-bottom: 16px;
  line-height: 1.4;
}

.feature-card-desc {
  font-size: 0.95rem;
  color: var(--text-main);
  line-height: 1.7;
}

/* ==========================================================================
   120分でできること 3段階ステップ (Curriculum)
   ========================================================================== */
.curriculum-section {
  background: linear-gradient(180deg, #ffffff 0%, #f0f7ff 100%);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.step-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
  margin-bottom: 40px;
}

@media (max-width: 960px) {
  .step-card-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* チラシの3段階グラデーションカードを忠実に再現 */
.step-card {
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  color: #ffffff;
  box-shadow: var(--shadow-lg);
  position: relative;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

/* STEP 1: 水色・ライトブルー */
.step-card.step-1 {
  background: linear-gradient(145deg, #0ea5e9 0%, #0284c7 100%);
}

/* STEP 2: 中青・ロイヤルブルー */
.step-card.step-2 {
  background: linear-gradient(145deg, #0284c7 0%, #1d4ed8 100%);
}

/* STEP 3: 濃紺・ディープネイビー */
.step-card.step-3 {
  background: linear-gradient(145deg, #1e3a8a 0%, #0f172a 100%);
}

.step-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.25);
  padding-bottom: 12px;
}

.step-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-en);
  font-size: 1.15rem;
  font-weight: 900;
  letter-spacing: 0.05em;
}

.step-time {
  font-family: var(--font-en);
  font-size: 0.95rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.2);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.step-title {
  font-size: 1.35rem;
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 14px;
}

.step-desc {
  font-size: 0.94rem;
  line-height: 1.7;
  opacity: 0.95;
  margin-top: auto;
}

.step-highlight-tag {
  display: inline-block;
  background: rgba(255, 255, 255, 0.25);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  margin-top: 10px;
}

.step-note-box {
  background: #ffffff;
  border: 1px dashed var(--border-focus);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  text-align: center;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.step-note-box strong {
  color: var(--primary-dark);
}

/* ==========================================================================
   当日のタイムスケジュール (Timeline)
   ========================================================================== */
.schedule-section {
  background: var(--bg-slate-50);
}

.timeline-box {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 36px 30px;
  box-shadow: var(--shadow-md);
}

.timeline-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  margin: 20px 0 30px;
  padding: 0 10px;
}

.timeline-bar::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 20px;
  right: 20px;
  height: 4px;
  background: #e2e8f0;
  transform: translateY(-50%);
  z-index: 1;
}

.timeline-point {
  position: relative;
  z-index: 2;
  text-align: center;
  background: #ffffff;
  padding: 0 8px;
}

.timeline-circle {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary-blue);
  border: 4px solid #ffffff;
  box-shadow: 0 0 0 2px var(--primary-blue);
  margin: 0 auto 10px;
  transition: var(--transition);
}

.timeline-point:hover .timeline-circle {
  transform: scale(1.25);
}

.timeline-point-time {
  font-family: var(--font-en);
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--primary-navy);
}

.timeline-point-name {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-top: 4px;
}

@media (max-width: 768px) {
  .timeline-bar {
    display: none;
  }
}

/* モバイル向けタイムラインリスト */
.timeline-mobile-list {
  display: none;
  flex-direction: column;
  gap: 16px;
}

@media (max-width: 768px) {
  .timeline-mobile-list {
    display: flex;
  }
}

.timeline-mobile-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 12px 14px;
  background: var(--bg-slate-50);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--primary-blue);
}

.timeline-mobile-time {
  font-family: var(--font-en);
  font-weight: 800;
  color: var(--primary-blue);
  font-size: 0.95rem;
  min-width: 55px;
}

.timeline-mobile-content {
  font-size: 0.92rem;
  color: var(--text-main);
  font-weight: 600;
}

.schedule-note {
  text-align: right;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 14px;
}

/* ==========================================================================
   参加者特典 & 受講条件 (Benefits & Requirements)
   ========================================================================== */
.bonus-section {
  background: #ffffff;
}

.bonus-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

@media (max-width: 860px) {
  .bonus-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* チラシのダークネイビー特典カード */
.bonus-card {
  background: linear-gradient(145deg, #172554 0%, #0f172a 100%);
  color: #ffffff;
  border-radius: var(--radius-xl);
  padding: 36px 30px;
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}

.bonus-card::after {
  content: "GIFT";
  position: absolute;
  bottom: -20px;
  right: -10px;
  font-family: var(--font-en);
  font-size: 6rem;
  font-weight: 900;
  color: rgba(255, 255, 255, 0.03);
  pointer-events: none;
}

.bonus-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

.bonus-icon {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: #ffffff;
}

.bonus-title {
  font-size: 1.45rem;
  font-weight: 800;
}

.bonus-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}

.bonus-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 1rem;
  line-height: 1.6;
}

.bonus-item-bullet {
  color: var(--accent-soft-blue);
  font-size: 1.2rem;
  line-height: 1;
  margin-top: 3px;
}

.bonus-note {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.7);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 14px;
}

/* 受講条件カード */
.req-card {
  background: var(--bg-sky-50);
  border: 1px solid #bae6fd;
  border-radius: var(--radius-xl);
  padding: 36px 30px;
  box-shadow: var(--shadow-md);
}

.req-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

.req-icon {
  width: 48px;
  height: 48px;
  background: #ffffff;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary-blue);
  box-shadow: var(--shadow-sm);
}

.req-title {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--primary-navy);
}

.req-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.req-item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 0.98rem;
  line-height: 1.5;
}

.req-badge-required {
  background: #fee2e2;
  color: #b91c1c;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: 4px;
  flex-shrink: 0;
}

.req-badge-recommended {
  background: #e0f2fe;
  color: #0369a1;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: 4px;
  flex-shrink: 0;
}

.req-item-text {
  color: var(--text-main);
  font-weight: 600;
}

.req-item-sub {
  font-size: 0.84rem;
  color: var(--text-muted);
  font-weight: normal;
  display: block;
  margin-top: 2px;
}

/* ==========================================================================
   講師紹介 (Instructor Profile)
   ========================================================================== */
.instructor-section {
  background: var(--bg-slate-50);
}

.instructor-card {
  background: #ffffff;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-lg);
  padding: 40px;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  align-items: center;
}

@media (max-width: 800px) {
  .instructor-card {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 30px 20px;
    gap: 28px;
  }
}

.instructor-img-wrap {
  text-align: center;
}

.instructor-main-photo {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  box-shadow: var(--shadow-lg);
  border: 4px solid #ffffff;
}

.instructor-badge-banner {
  display: inline-block;
  background: var(--primary-navy);
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 800;
  padding: 6px 20px;
  border-radius: var(--radius-full);
}

.instructor-name-block {
  margin-bottom: 20px;
}

.instructor-role {
  font-size: 0.95rem;
  color: var(--accent-sky);
  font-weight: 700;
  margin-bottom: 4px;
}

.instructor-name {
  font-size: 2rem;
  font-weight: 900;
  color: var(--primary-navy);
  letter-spacing: -0.01em;
}

.instructor-lead {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text-main);
  margin-bottom: 20px;
}

.instructor-message-box {
  background: var(--bg-sky-50);
  border-left: 4px solid var(--primary-blue);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 16px 20px;
  font-size: 0.94rem;
  color: var(--primary-navy);
  line-height: 1.7;
}

/* ==========================================================================
   開催概要 & 最終CTA (Event Details & Final CTA)
   ========================================================================== */
.overview-section {
  background: #ffffff;
}

.overview-box {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  margin-bottom: 48px;
}

.overview-table {
  width: 100%;
  border-collapse: collapse;
}

.overview-table tr {
  border-bottom: 1px solid var(--border-light);
}

.overview-table tr:last-child {
  border-bottom: none;
}

.overview-table th {
  width: 28%;
  background: #f8fafc;
  padding: 20px 24px;
  text-align: left;
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--primary-navy);
}

.overview-table td {
  padding: 20px 24px;
  font-size: 0.98rem;
  color: var(--text-main);
  line-height: 1.6;
}

@media (max-width: 640px) {
  .overview-table th, .overview-table td {
    display: block;
    width: 100%;
    padding: 12px 18px;
  }
  .overview-table th {
    background: #f1f5f9;
    border-bottom: none;
    padding-bottom: 4px;
  }
  .overview-table td {
    padding-top: 4px;
  }
}

.highlight-price {
  font-size: 1.45rem;
  font-weight: 900;
  color: #b91c1c;
  font-family: var(--font-en);
}

.highlight-limit {
  display: inline-block;
  background: #fee2e2;
  color: #b91c1c;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.88rem;
  margin-left: 8px;
}

/* 最終CTAカード */
.final-cta-card {
  background: linear-gradient(135deg, var(--primary-navy) 0%, var(--primary-dark) 50%, var(--primary-blue) 100%);
  color: #ffffff;
  border-radius: var(--radius-xl);
  padding: 56px 36px;
  text-align: center;
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.25);
  position: relative;
  overflow: hidden;
}

.final-cta-card::before {
  content: "";
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 250px;
  background: radial-gradient(ellipse, rgba(14, 165, 233, 0.3) 0%, transparent 70%);
  pointer-events: none;
}

.final-cta-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  padding: 6px 18px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.final-cta-title {
  font-size: 2.3rem;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 16px;
}

@media (max-width: 640px) {
  .final-cta-title {
    font-size: 1.7rem;
  }
}

.final-cta-lead {
  font-size: 1.05rem;
  opacity: 0.9;
  max-width: 640px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.final-btn-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.cta-btn-large {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: #ffffff;
  color: var(--primary-navy);
  font-size: 1.25rem;
  font-weight: 900;
  padding: 20px 48px;
  border-radius: var(--radius-full);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  transition: var(--transition);
  max-width: 480px;
  width: 100%;
}

.cta-btn-large:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 16px 35px rgba(0, 0, 0, 0.3);
  color: var(--primary-blue);
}

/* ==========================================================================
   よくあるご質問 (FAQ)
   ========================================================================== */
.faq-section {
  background: var(--bg-slate-50);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.faq-item.active {
  border-color: var(--accent-sky);
}

.faq-question {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  background: #ffffff;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary-navy);
  transition: var(--transition);
}

.faq-question:hover {
  background: var(--bg-slate-50);
}

.faq-q-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.faq-badge-q {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-blue);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 800;
  flex-shrink: 0;
}

.faq-icon-arrow {
  font-size: 1.2rem;
  color: var(--text-muted);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-icon-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out, padding 0.35s ease;
  padding: 0 24px;
  background: #f8fafc;
  color: var(--text-main);
  line-height: 1.75;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 18px 24px 24px;
  border-top: 1px solid var(--border-light);
}

/* ==========================================================================
   フッター (Footer)
   ========================================================================== */
.site-footer {
  background: #ffffff;
  border-top: 1px solid var(--border-light);
  padding: 48px 0 32px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 36px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.footer-logo-block img {
  height: 48px;
  width: auto;
  margin-bottom: 12px;
}

.footer-info-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.footer-info-text a {
  color: var(--primary-blue);
  text-decoration: underline;
}

.footer-privacy {
  max-width: 480px;
  background: var(--bg-slate-50);
  border-radius: var(--radius-sm);
  padding: 16px;
  border: 1px solid var(--border-light);
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-privacy strong {
  color: var(--primary-navy);
}

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--border-light);
  font-size: 0.8rem;
  color: var(--text-light);
}

/* ==========================================================================
   スクロール追従CTAバー (Sticky Bottom Bar)
   ========================================================================== */
.sticky-cta-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(23, 37, 84, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding: 12px 20px;
  z-index: 99;
  transform: translateY(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
}

.sticky-cta-bar.visible {
  transform: translateY(0);
}

.sticky-cta-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.sticky-cta-text {
  color: #ffffff;
}

.sticky-cta-title {
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.3;
}

.sticky-cta-sub {
  font-size: 0.8rem;
  color: var(--accent-soft-blue);
}

.sticky-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--accent-sky), var(--primary-blue));
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 800;
  padding: 10px 24px;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.4);
  white-space: nowrap;
  transition: var(--transition);
}

.sticky-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(2, 132, 199, 0.6);
}

@media (max-width: 640px) {
  .sticky-cta-inner {
    flex-direction: column;
    text-align: center;
    gap: 8px;
  }
  .sticky-cta-btn {
    width: 100%;
    justify-content: center;
  }
}