/* =================================
   セミナーページ - base.cssデザインシステム準拠
================================= */

/* セミナー検索・一覧セクション */
.seminar-section {
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  padding: 40px 0 40px;
  position: relative;
  margin-top: 0;
}

.search-container {
  max-width: 1400px;
  margin: 0 auto 0px;
  padding: 0 20px;
}

.search-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 2rem; /* 3rem→2remに削減してタイトルを上に */
  position: relative;
  display: inline-block;
  width: 100%;
  letter-spacing: 0.05em;
}

/* 検索フォーム */
.search-form {
  background: var(--surface);
  border-radius: var(--border-radius);
  padding: 3rem;
  box-shadow: var(--shadow-blue-light);
  border: 1px solid var(--border-light);
  position: relative;
  overflow: hidden;
}

.search-form::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--edo-ai), var(--aozora));
}

.search-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-label {
  font-family: var(--font-accent);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  letter-spacing: 0.03em;
}

.form-label i {
  color: var(--edo-ai);
  font-size: 1.1rem;
}

/* フォーム要素のスタイル */
.form-input,
.form-select {
  font-family: var(--font-accent);
  font-size: 1rem;
  padding: 0.875rem 1.25rem;
  border: 2px solid var(--border-light);
  border-radius: var(--border-radius);
  background: var(--surface);
  color: var(--text-primary);
  transition: var(--transition);
  width: 100%;
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--edo-ai);
  box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
  background: var(--bg-primary);
}

.form-input::placeholder {
  color: var(--text-muted);
  font-weight: 400;
}

/* 検索ボタン - top.cssのCTAボタンスタイル踏襲 */
.search-button-wrapper {
  display: flex;
  justify-content: center;
  margin-top: 2.5rem;
}

.search-button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 18px 40px;
  font-family: var(--font-accent);
  font-weight: 600;
  font-size: 1rem;
  background: var(--edo-ai);
  color: var(--text-inverse);
  border: 2px solid var(--edo-ai);
  border-radius: var(--border-radius);
  cursor: pointer;
  letter-spacing: 0.05em;
  box-shadow: var(--shadow-blue-light);
}

.search-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(74, 144, 226, 0.25);
}

.search-button i {
  font-size: 1.2rem;
}

/* セクション共通スタイル */
section {
  margin-bottom: -80px;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
  position: relative;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 20px;
  position: relative;
  display: inline-block;
  letter-spacing: 0.05em;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--edo-ai), var(--aozora));
  border-radius: 2px;
}

/* 会長・副会長紹介 */
.tankai-leaders {
  background: var(--bg-secondary);
  padding: 80px 0;
}

.leaders-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 40px;
  max-width: 900px;
  margin: 0 auto;
}

.leader-card {
  background: var(--surface);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-blue-light);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}

.leader-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-blue);
  border-color: var(--edo-ai);
}

.leader-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, var(--edo-ai), var(--aozora));
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.leader-card:hover::before {
  transform: translateX(0);
}

.leader-image {
  height: 300px;
  overflow: hidden;
}

.leader-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.leader-card:hover .leader-image img {
  transform: scale(1.05);
}

.leader-info {
  padding: 24px;
  text-align: center;
}

.leader-position {
  font-family: var(--font-accent);
  font-size: 0.95rem;
  color: var(--edo-ai);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.leader-name {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}

.leader-company {
  font-family: var(--font-accent);
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* 単会内容説明 */
.tankai-description {
  padding: 80px 0;
  background: var(--bg-primary);
  position: relative;
}

.description-content {
  max-width: 800px;
  margin: 0 auto;
  font-family: var(--font-main);
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.description-content p:not(:last-child) {
  margin-bottom: 20px;
}

/* モーニングセミナー会場 */
.tankai-venue {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.tankai-venue::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 20% 80%, rgba(74, 144, 226, 0.05) 0%, transparent 50%);
  animation: floatGradient 20s ease-in-out infinite;
}

.venue-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.venue-info {
  padding: 40px;
  background: var(--surface);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-blue-light);
  border: 1px solid var(--border-light);
}

.venue-info h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 16px;
  letter-spacing: 0.05em;
}

.venue-info h3::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--edo-ai), var(--aozora));
  border-radius: 2px;
}

.venue-info-item {
  margin-bottom: 20px;
  font-family: var(--font-accent);
  font-size: 1rem;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.venue-info-label {
  font-weight: 600;
  color: var(--text-secondary);
  min-width: 100px;
  flex-shrink: 0;
}

.venue-map {
  height: 400px;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-blue-light);
  border: 1px solid var(--border-light);
}

/* 事務局連絡先 */
.tankai-contact {
  padding: 80px 0;
  background: var(--bg-primary);
}

.contact-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 50px;
  background: var(--surface);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-blue-light);
  border: 1px solid var(--border-light);
  position: relative;
  overflow: hidden;
}

.contact-content::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, var(--edo-ai), var(--aozora));
}

/* =================================
   単会一覧セクション
================================= */
.tankai-list-section {
  padding: 80px 0;
  background: var(--bg-primary);
}

.tankai-area {
  margin-bottom: 60px;
}

.area-header {
  margin-bottom: 30px;
  padding-left: 20px;
  border-left: 5px solid var(--edo-ai);
}

.area-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.05em;
}

.tankai-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.tankai-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius);
  padding: 24px;
  text-decoration: none;
  transition: var(--transition);
  box-shadow: var(--shadow-subtle);
  position: relative;
  overflow: hidden;
}

.tankai-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--edo-ai), var(--aozora));
  transform: translateX(-100%);
  transition: transform 0.4s ease;
}

.tankai-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-blue-light);
  border-color: var(--edo-ai);
}

.tankai-card:hover::before {
  transform: translateX(0);
}

.tankai-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tankai-info {
  flex: 1;
}

.weekday-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--border-radius);
  font-family: var(--font-accent);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

/* 曜日別バッジカラー */
.weekday-badge.tue {
  background: #ffebee;
  color: #b33e5c;
}

.weekday-badge.wed {
  background: #e3f2fd;
  color: #000080;
}

.weekday-badge.thu {
  background: #f3e5f5;
  color: #805ad5;
}

.weekday-badge.fri {
  background: #fff8e1;
  color: #d69e2e;
}

.weekday-badge.sat {
  background: #e0f2f1;
  color: #319795;
}

.weekday-badge.sun {
  background: #ffeaa7;
  color: #dd6b20;
}

.tankai-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: 0.02em;
}

.tankai-arrow {
  font-size: 1.5rem;
  color: var(--edo-ai);
  transition: transform 0.3s ease;
  margin-left: 16px;
}

.tankai-card:hover .tankai-arrow {
  transform: translateX(4px);
}

/* レスポンシブ対応 */
@media (max-width: 1200px) {
  .schedule-grid {
    grid-template-columns: repeat(9, 1fr);
  }
  
  .schedule-item {
    grid-column: span 3;
  }
}


@media (max-width: 900px) {
  .schedule-grid {
    grid-template-columns: repeat(6, 1fr);
  }
  
  .schedule-item {
    grid-column: span 3;
  }
}

@media (max-width: 768px) {
  section {
    padding: 60px 0;
  }
  
  .page-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
  }
  
  .search-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .search-form {
    padding: 2rem;
  }
  
  .search-button {
    padding: 16px 32px;
    font-size: 0.95rem;
  }
  
  .section-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
  }
  
  .leaders-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .leader-image {
    height: 250px;
  }
  
  .upcoming-card {
    flex-direction: column;
  }
  
  .upcoming-date {
    flex-direction: row;
    gap: 16px;
    min-width: auto;
    padding: 20px;
    width: 100%;
    justify-content: center;
  }
  
  .upcoming-weekday, .upcoming-day, .upcoming-time {
    margin-bottom: 0;
  }
  
  .upcoming-day {
    font-size: 2rem;
  }
  
  /* セミナーセクション */
  .seminar-section {
    padding: 50px 0 50px; /* 下部余白を60px→50pxに削減 */
  }
  
  .search-container {
    margin-bottom: 25px; /* 40px→25pxに削減 */
  }
  
  .schedule-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .schedule-item {
    grid-column: span 1;
    min-height: 280px;
    padding: 1.5rem;
  }
  
  .schedule-icon {
    width: 42px;
    height: 42px;
  }
  
  .date-main {
    font-size: 1.3rem;
  }
  
  .schedule-title {
    font-size: 1.1rem;
  }
}

@media (max-width: 480px) {
  
  .search-form {
    padding: 1.5rem;
  }
  
  .form-label {
    font-size: 0.9rem;
  }
  
  .search-button {
    padding: 14px 28px;
    font-size: 0.9rem;
    gap: 8px;
  }
  
  .search-button i {
    font-size: 1rem;
  }
  
  .leader-name {
    font-size: 1.5rem;
  }
  
  .leader-position {
    font-size: 0.85rem;
  }
  
  .contact-content {
    padding: 30px 20px;
  }
  
  .upcoming-header {
    font-size: 1.5rem;
    margin-bottom: 30px;
  }
  
  .upcoming-theme {
    font-size: 1.2rem;
  }
  
  .upcoming-content {
    padding: 20px;
  }
  
  /* セミナースケジュール */
  .schedule-item {
    min-height: 240px;
    padding: 1.2rem;
  }
  
  .schedule-header {
    flex-direction: row;
    align-items: center;
    gap: 12px;
    margin-bottom: 1.25rem;
  }
  
  .schedule-icon {
    width: 36px;
    height: 36px;
    font-size: 12px;
  }
  
  .icon-weekday {
    font-size: 1rem;
  }
  
  .date-main {
    font-size: 1.1rem;
  }
  
  .date-time {
    font-size: 0.8rem;
  }
  
  .schedule-title {
    font-size: 1rem;
    margin-bottom: 1rem;
  }
  
  .schedule-info {
    margin-bottom: 1.25rem;
  }
  
  .speaker-label,
  .location-label {
    font-size: 0.75rem;
    padding: 3px 8px;
    min-width: 45px;
  }
  
  .speaker-name,
  .location-name {
    font-size: 0.9rem;
  }
  
  .schedule-button {
    padding: 6px 12px;
    font-size: 0.8rem;
  }
}

/* アニメーション */
@keyframes floatGradient {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(-30px, -30px) rotate(120deg); }
  66% { transform: translate(30px, -30px) rotate(240deg); }
}

/* フォーカス・アクセシビリティ */
.form-input:focus,
.form-select:focus,
.search-button:focus {
  outline: 2px solid var(--edo-ai);
  outline-offset: 2px;
}

/* 印刷対応 */
@media print {
  .search-section,
  .page-header::before,
  .tankai-venue::before {
    display: none;
  }
  
  .leader-card,
  .venue-info,
  .contact-content {
    box-shadow: none;
    border: 1px solid #ddd;
  }
}

/* =================================
   セミナースライダー（SPモード）
================================= */
/* セミナースライダー - 共通スタイル */
.seminar-slider-container {
  position: relative;
  margin-bottom: 2rem;
}

.seminar-slider-wrapper {
  width: 100%;
  overflow: hidden;
}

.seminar-slider-track {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  padding: 0 1rem;
}

/* SPモードではスライド表示 */
@media (max-width: 768px) {
  .seminar-slider-container {
    overflow: visible;
    position: relative;
    width: 100%;
    margin: 0 auto;
  }
  
  .seminar-slider-wrapper {
    overflow: visible;
    padding: 0;
  }
  
  .seminar-slider-track {
    display: flex;
    flex-wrap: nowrap;
    transform: translateX(0);
    padding: 0 40px;
    gap: 16px;
    transition: transform 0.3s ease;
  }
  
  .seminar-slide {
    flex: 0 0 calc(100% - 80px);
    max-width: calc(100% - 80px);
    margin-right: 0;
    opacity: 0.6;
    transform: scale(0.9);
    transition: all 0.3s ease;
  }
  
  .seminar-slide.active {
    opacity: 1;
    transform: scale(1);
  }
}