/* ===================================
   タケルFXスクール LP - スタイルシート
   金融メディア風の信頼感あるデザイン
   =================================== */

/* --- CSS変数 --- */
:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #3b82f6;
  --color-accent: #0ea5e9;
  --color-danger: #dc2626;
  --color-danger-light: #fef2f2;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-text-light: #94a3b8;
  --color-bg: #f8fafc;
  --color-bg-white: #ffffff;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;
  --font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
  list-style: none;
}

/* --- コンテナ --- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* --- ユーティリティ --- */
.sp-only {
  display: none;
}

@media (max-width: 768px) {
  .sp-only {
    display: inline;
  }
}

/* --- ボタン --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 32px;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-cta {
  background-color: var(--color-primary);
  color: #fff;
  padding: 20px 48px;
  font-size: 18px;
  border-radius: var(--radius-lg);
}

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

.btn-icon {
  width: 20px;
  height: 20px;
}

/* ===================================
   ヘッダー
   =================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 18px;
  color: var(--color-text);
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-md);
}

.logo-icon svg {
  width: 20px;
  height: 20px;
}

.nav {
  display: flex;
  gap: 32px;
}

.nav-link {
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: color 0.2s;
}

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

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

/* ===================================
   ヒーローセクション
   =================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 0 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-bg-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(30,41,59,0.92) 0%, rgba(30,58,95,0.85) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  color: #fff;
  text-align: center;
}

.hero-label {
  display: inline-block;
  padding: 8px 20px;
  background-color: rgba(255,255,255,0.15);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 24px;
  backdrop-filter: blur(4px);
}

.hero-title {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 24px;
  text-wrap: balance;
}

.hero-title-highlight {
  color: var(--color-accent);
}

.hero-subtitle {
  font-size: 18px;
  line-height: 1.8;
  color: rgba(255,255,255,0.85);
  margin-bottom: 40px;
}

.hero-features {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
}

.hero-feature-icon {
  width: 20px;
  height: 20px;
  color: #22c55e;
}

.hero-btn {
  padding: 18px 40px;
  font-size: 17px;
}

@media (max-width: 768px) {
  .hero {
    padding: 80px 0 60px;
    min-height: auto;
  }
  
  .hero-title {
    font-size: 28px;
  }
  
  .hero-subtitle {
    font-size: 16px;
  }
  
  .hero-features {
    flex-direction: column;
    gap: 16px;
    align-items: center;
  }
}

/* ===================================
   セクション共通
   =================================== */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--color-text);
  margin-bottom: 16px;
  text-wrap: balance;
}

.section-desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

@media (max-width: 768px) {
  .section-title {
    font-size: 24px;
  }
  
  .section-desc {
    font-size: 15px;
  }
}

/* ===================================
   問題提起セクション
   =================================== */
.problem-section {
  padding: 100px 0;
  background-color: var(--color-bg-white);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.stat-card {
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  border: 1px solid var(--color-border);
}

.stat-card-danger {
  background-color: var(--color-danger-light);
  border-color: #fecaca;
}

.stat-number {
  font-size: 48px;
  font-weight: 700;
  color: var(--color-danger);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-number-primary {
  color: var(--color-primary);
}

.stat-label {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.stat-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.problem-highlight {
  display: flex;
  gap: 20px;
  background-color: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: var(--radius-lg);
  padding: 28px;
}

.problem-highlight-icon {
  width: 24px;
  height: 24px;
  color: #d97706;
  flex-shrink: 0;
  margin-top: 2px;
}

.problem-highlight-title {
  font-size: 17px;
  font-weight: 600;
  color: #92400e;
  margin-bottom: 8px;
}

.problem-highlight-desc {
  font-size: 15px;
  color: #a16207;
  line-height: 1.7;
}

@media (max-width: 768px) {
  .problem-section {
    padding: 60px 0;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .stat-number {
    font-size: 36px;
  }
  
  .problem-highlight {
    flex-direction: column;
    gap: 12px;
  }
}

/* ===================================
   失敗パターンセクション
   =================================== */
.failure-section {
  padding: 100px 0;
  background-color: var(--color-bg);
}

.failure-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.failure-card {
  background-color: var(--color-bg-white);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid var(--color-border);
  transition: box-shadow 0.2s;
}

.failure-card:hover {
  box-shadow: var(--shadow-md);
}

.failure-number {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.failure-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.failure-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

@media (max-width: 768px) {
  .failure-section {
    padding: 60px 0;
  }
}

/* ===================================
   解決策セクション
   =================================== */
.solution-section {
  padding: 100px 0;
  background-color: var(--color-bg-white);
}

.solution-image-wrapper {
  margin-bottom: 56px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.solution-image {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

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

.solution-card {
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--color-border);
}

.solution-icon {
  width: 48px;
  height: 48px;
  background-color: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.solution-icon svg {
  width: 24px;
  height: 24px;
  color: #fff;
}

.solution-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

.solution-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

@media (max-width: 768px) {
  .solution-section {
    padding: 60px 0;
  }
  
  .solution-image {
    height: 200px;
  }
  
  .solution-grid {
    grid-template-columns: 1fr;
  }
}

/* ===================================
   カリキュラムセクション
   =================================== */
.curriculum-section {
  padding: 100px 0;
  background-color: var(--color-bg);
}

.curriculum-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.curriculum-card {
  background-color: var(--color-bg-white);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid var(--color-border);
}

.curriculum-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.curriculum-badge {
  display: inline-block;
  padding: 4px 12px;
  background-color: var(--color-primary);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  border-radius: 100px;
}

.curriculum-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
}

.curriculum-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.curriculum-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.curriculum-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  background-color: var(--color-primary);
  border-radius: 50%;
  margin-top: 7px;
  flex-shrink: 0;
}

.curriculum-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px;
  background-color: #eff6ff;
  border-radius: var(--radius-md);
  color: var(--color-primary-dark);
  font-size: 14px;
}

.curriculum-note-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .curriculum-section {
    padding: 60px 0;
  }
  
  .curriculum-grid {
    grid-template-columns: 1fr;
  }
}

/* ===================================
   比較セクション
   =================================== */
.comparison-section {
  padding: 100px 0;
  background-color: var(--color-bg-white);
}

.comparison-table-wrapper {
  overflow-x: auto;
  margin-bottom: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 500px;
}

.comparison-table th,
.comparison-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.comparison-table th {
  background-color: var(--color-bg);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}

.comparison-table td {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.comparison-table tbody tr:last-child td {
  border-bottom: none;
}

.comparison-table tbody tr:hover {
  background-color: var(--color-bg);
}

.comparison-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.comparison-card {
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid var(--color-border);
}

.comparison-card-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
}

.comparison-card-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.comparison-card-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.comparison-card-list li::before {
  content: '';
  width: 20px;
  height: 20px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2322c55e' stroke-width='2'%3E%3Cpath d='M22 11.08V12a10 10 0 1 1-5.93-9.14'%3E%3C/path%3E%3Cpolyline points='22 4 12 14.01 9 11.01'%3E%3C/polyline%3E%3C/svg%3E");
  background-size: contain;
  flex-shrink: 0;
}

.comparison-note {
  display: flex;
  gap: 16px;
  background-color: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: var(--radius-lg);
  padding: 24px;
}

.comparison-note-icon {
  width: 24px;
  height: 24px;
  color: #d97706;
  flex-shrink: 0;
}

.comparison-note-title {
  font-size: 15px;
  font-weight: 600;
  color: #92400e;
  margin-bottom: 6px;
}

.comparison-note-desc {
  font-size: 14px;
  color: #a16207;
  line-height: 1.7;
}

@media (max-width: 768px) {
  .comparison-section {
    padding: 60px 0;
  }
  
  .comparison-cards {
    grid-template-columns: 1fr;
  }
  
  .comparison-note {
    flex-direction: column;
    gap: 12px;
  }
}

/* ===================================
   FAQセクション
   =================================== */
.faq-section {
  padding: 100px 0;
  background-color: var(--color-bg);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background-color: var(--color-bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text);
  list-style: none;
  transition: background-color 0.2s;
}

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

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

.faq-icon {
  width: 20px;
  height: 20px;
  color: var(--color-text-secondary);
  transition: transform 0.2s;
}

.faq-item[open] .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 24px 20px;
}

.faq-answer p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

@media (max-width: 768px) {
  .faq-section {
    padding: 60px 0;
  }
  
  .faq-question {
    font-size: 15px;
    padding: 16px 20px;
  }
  
  .faq-answer {
    padding: 0 20px 16px;
  }
}

/* ===================================
   CTAセクション
   =================================== */
.cta-section {
  position: relative;
  padding: 100px 0;
}

.cta-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.cta-bg-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(30,41,59,0.95) 0%, rgba(30,58,95,0.9) 100%);
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: #fff;
}

.cta-label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.7);
  margin-bottom: 12px;
}

.cta-title {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-desc {
  font-size: 17px;
  color: rgba(255,255,255,0.85);
  line-height: 1.8;
  margin-bottom: 40px;
}

.cta-features {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.cta-feature {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
}

.cta-feature-icon {
  width: 20px;
  height: 20px;
  color: #22c55e;
}

.cta-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
  font-size: 14px;
  color: rgba(255,255,255,0.7);
}

.cta-note-icon {
  width: 16px;
  height: 16px;
}

@media (max-width: 768px) {
  .cta-section {
    padding: 60px 0;
  }
  
  .cta-title {
    font-size: 26px;
  }
  
  .cta-desc {
    font-size: 15px;
  }
  
  .cta-features {
    flex-direction: column;
    gap: 12px;
    align-items: center;
  }
}

/* ===================================
   フッター
   =================================== */
.footer {
  background-color: #1e293b;
  color: #94a3b8;
  padding: 60px 0 40px;
}

.footer-risk {
  background-color: rgba(255,255,255,0.05);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 40px;
}

.footer-risk-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 600;
  color: #f59e0b;
  margin-bottom: 16px;
}

.footer-risk-icon {
  width: 20px;
  height: 20px;
}

.footer-risk-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-risk-content p {
  font-size: 13px;
  line-height: 1.7;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 24px;
  margin-bottom: 24px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: #e2e8f0;
}

.footer-logo-icon {
  width: 20px;
  height: 20px;
}

.footer-copy {
  font-size: 13px;
}

.footer-affiliate {
  text-align: center;
}

.footer-affiliate p {
  font-size: 12px;
  line-height: 1.8;
  color: #64748b;
}

@media (max-width: 768px) {
  .footer {
    padding: 40px 0 32px;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}