/* =============================================
   トップページ専用CSS
   business-portal.cssのデザインシステムを継承
   ============================================= */

/* =============================================
   ヒーローセクション（シンプル版）
   ============================================= */
.hero-section.simplified {
  position: relative;
  background: var(--bg-secondary);
  margin-bottom: 2rem;
}

.hero-container {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-banner {
  position: relative;
  height: 300px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
}

.hero-banner.hero-default {
  background: linear-gradient(135deg, #00A0E9 0%, #0080C9 100%);
}

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

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
}

.hero-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: white;
  width: 90%;
  max-width: 800px;
}

.hero-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  line-height: 1.3;
}

.hero-subtitle {
  font-size: 1rem;
  font-weight: 400;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  line-height: 1.5;
}

/* =============================================
   セクション共通
   ============================================= */
.site-main {
  background: var(--bg-secondary);
  padding: 2rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 2rem;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--primary-color);
}

.section-description {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-top: 1rem;
}

/* =============================================
   都道府県セクション
   ============================================= */
.prefecture-section {
  background: var(--bg-primary);
  padding: 3rem 0;
  margin-bottom: 2rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.prefecture-wrapper {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 1rem;
}

.region-group {
  margin-bottom: 2.5rem;
}

.region-group:last-child {
  margin-bottom: 0;
}

.region-label {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  padding-left: 1rem;
  border-left: 4px solid var(--primary-color);
}

.prefecture-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1rem;
}

.prefecture-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: var(--transition);
}

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

.prefecture-main-link {
  display: block;
  padding: 1rem;
  text-decoration: none;
  color: inherit;
}

.prefecture-name {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.prefecture-stats {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.stat-item {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
}

.stat-number {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-color);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.prefecture-sub-info {
  padding: 0.5rem 1rem;
  background: var(--bg-gray);
  border-top: 1px solid var(--border-light);
  display: flex;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.sub-stat {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* =============================================
   主要エリア・駅セクション
   ============================================= */
.major-areas-section {
  background: var(--bg-primary);
  padding: 3rem 0;
  margin-bottom: 2rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.major-areas-wrapper {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 1rem;
  display: grid;
  gap: 2.5rem;
}

.major-area-group {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  background: var(--bg-gray);
}

.major-area-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--primary-color);
}

.area-subsection {
  margin-bottom: 1.5rem;
}

.area-subsection:last-child {
  margin-bottom: 0;
}

.subsection-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.subsection-title::before {
  content: '';
  display: inline-block;
  width: 3px;
  height: 1em;
  background: var(--primary-color);
}

.area-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.area-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.875rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--text-primary);
  font-size: 0.8125rem;
  font-weight: 500;
  transition: var(--transition);
}

.area-link:hover {
  background: var(--primary-light);
  border-color: var(--primary-color);
  transform: translateX(2px);
}

.area-link.station-link {
  position: relative;
  padding-left: 2rem;
}

.area-link.station-link::before {
  content: "🚃";
  position: absolute;
  left: 0.75rem;
  font-size: 0.75rem;
}

.area-count {
  background: var(--primary-color);
  color: var(--bg-primary);
  padding: 0.125rem 0.375rem;
  border-radius: 10px;
  font-size: 0.6875rem;
  font-weight: 600;
}

/* =============================================
   サイト情報セクション
   ============================================= */
.site-info-section {
  background: var(--bg-primary);
  padding: 3rem 0;
  margin-bottom: 2rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.info-grid {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 1rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.info-card {
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.info-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.info-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.info-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.info-text {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* =============================================
   統計セクション（修正版）
   ============================================= */
.statistics-section {
  background: #00A0E9; /* var(--primary-color)の代わりに直接色指定 */
  padding: 2rem 0;
  margin-bottom: 2rem;
}

.stats-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 2rem;
}

.stat-box {
  text-align: center;
  color: white;
}

.stat-box .stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  line-height: 1;
	color:#fff;
}

.stat-box .stat-label {
  font-size: 0.875rem;
  opacity: 0.9;
	color:#fff;
}

/* CSS変数定義（必要に応じて） */
:root {
  --primary-color: #00A0E9;
  --primary-dark: #0080C9;
  --primary-light: #E6F4FB;
  --text-primary: #333333;
  --text-secondary: #666666;
  --bg-primary: #FFFFFF;
  --bg-secondary: #F5F5F5;
  --bg-gray: #FAFAFA;
  --border-color: #E0E0E0;
  --border-light: #F0F0F0;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.1);
  --radius-sm: 4px;
  --radius-md: 8px;
  --transition: all 0.2s ease;
}

/* =============================================
   レスポンシブ - タブレット
   ============================================= */
@media (min-width: 768px) {
  .hero-banner {
    height: 400px;
  }
  
  .hero-title {
    font-size: 2.25rem;
  }
  
  .hero-subtitle {
    font-size: 1.125rem;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .prefecture-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  }
  
  .major-areas-wrapper {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .info-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* =============================================
   レスポンシブ - デスクトップ
   ============================================= */
@media (min-width: 1024px) {
  .hero-banner {
    height: 450px;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .prefecture-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  }
  
  .major-areas-wrapper {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .info-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .stats-container {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* =============================================
   アニメーション
   ============================================= */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.prefecture-card,
.info-card,
.stat-box {
  animation: fadeInUp 0.6s ease-out;
}

/* =============================================
   印刷用スタイル
   ============================================= */
@media print {
  .hero-section,
  .statistics-section {
    display: none;
  }
  
  .prefecture-card,
  .major-area-group {
    break-inside: avoid;
  }
}