/* index.css - トップページ固有のスタイル */



/* スプラッシュページ関連のスタイル */
body.splash-banner-page .birdseye-header {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 10;
}

body.splash-banner-page .birdseye-header .nav #wsite-nav-cart-num {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.2);
}

body.splash-banner-page .birdseye-header .hamburger span,
body.splash-banner-page .birdseye-header .hamburger span:before,
body.splash-banner-page .birdseye-header .hamburger span:after {
  background: #ffffff;
}

body.splash-banner-page.alt-nav-on .birdseye-header {
  background: rgba(255, 255, 255, 0.95);
}

body.splash-banner-page.alt-nav-on .birdseye-header .nav #wsite-nav-cart-num {
  color: #2a2a2a;
  background: rgba(42, 42, 42, 0.1);
}

body.splash-banner-page.alt-nav-on .birdseye-header .hamburger span,
body.splash-banner-page.alt-nav-on .birdseye-header .hamburger span:before,
body.splash-banner-page.alt-nav-on .birdseye-header .hamburger span:after {
  background: #2a2a2a;
}

body.splash-page .banner-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
}

body.splash-page .banner {
  width: 100%;
}

/* ヒーローバナーセクション */
.hero-banner {
  padding: 50px 40px;
  min-height: 100px;
}

/* イベント日付とタイトル */
.event-date {
  font-size: 18px;
  margin-bottom: 20px;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: bold;
}

.event-title {
  font-size: 36px;
  font-weight: bold;
  margin-bottom: 40px;
  line-height: 1.2;
}

/* メインセクション */
.main-info {
  padding: 50px;
}

/* セクション個別スタイル */
.thank-you-section h2 {
  font-size: 28px;
  line-height: 1.4;
  margin-bottom: 40px;
  text-align: center;
  color: #626262;
  font-weight: normal;
}

/* セクション個別スタイル*/
.about-section h2,
.keynotes-section h2,
.venue-section h2,
.organizers-section h2,
.workshop-section h2 {
  font-size: 28px;
  line-height: 1.4;
  margin-bottom: 40px;
  text-align: center;
  font-weight: bold;
}

.next-conference {
  text-align: center;
  margin-bottom: 60px;
}

.next-conference h3 {
  font-size: 24px;
  margin-bottom: 20px;
}

/* キーノートスピーカー */
.keynote-speakers {
  display: flex;
  gap: 40px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 40px 0;
}

.keynote-speaker {
  text-align: center;
  max-width: 300px;
}

.speaker-image {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 20px;
}

.speaker-info h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.speaker-info p {
  font-size: 14px;
}

/* スポンサーセクション */
.premier-sponsors {
  display: flex;
  gap: 40px;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  margin: 40px 0;
}

.sponsor-logo {
  display: inline-block;
}

.sponsor-image {
  max-height: 80px;
  max-width: 200px;
  object-fit: contain;
}

.premier-sponsor {
  max-height: 100px;
}

/* 会場セクション */
.venue-info {
  text-align: center;
  margin-bottom: 30px;
}

.venue-map iframe {
  width: 100%;
  height: 300px;
  border: none;
}

/* レスポンシブ対応 */
@media screen and (max-width: 768px) {
  .event-title {
    font-size: 32px;
  }

  .keynote-speakers {
    flex-direction: column;
    align-items: center;
  }

  .premier-sponsors {
    flex-direction: column;
    gap: 20px;
  }
}

/* main.cssから移動 */

/* ========================================
   ORGANIZERSセクション
   ======================================== */

.organizers-section {
  padding: 60px 0;
  text-align: center;
}

.organizers-section h2 {
  font-size: 48px;
  font-weight: bold;
  color: #2a2a2a;
  margin-bottom: 40px;
  text-align: center;
}

/* Organization Logos */
.organization-logos {
  display: flex;
  justify-content: center;
  gap: 60px;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

.organization {
  text-align: center;
}

.organization h3 {
  font-size: 18px;
  color: #2a2a2a;
  margin-bottom: 5px;
}

.org-logo {
  width: auto;
  height: 160px;
}
.organization:last-child h3 {
  padding-top: 1.3em;
}
.organization:last-child .org-logo {
  width: auto;
  height: 100px;
  padding-top: 20px;
}

.org-logo:hover {
  opacity: 0.8;
}

/* Organizer Team Grid */
.organizer-team {
  margin-top: 40px;
}

.organizer-grid {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.organizer-column {
  flex: 1;
  min-width: 200px;
  max-width: 300px;
}

.organizer {
  margin-bottom: 30px;
  text-align: center;
  display: flex;
}

.organizer-image {
  width: 120px;
  height: 120px;
  object-fit: cover;
  margin: 0 15px 0 0;
  display: block;
}

.organizer h4 {
  font-size: 20px;
  font-weight: bold;
  color: #2a2a2a;
  margin: 0;
  text-align: left;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .organization-logos {
    flex-direction: column;
    gap: 30px;
    align-items: center;
  }

  .organizer-grid {
    flex-direction: column;
    gap: 20px;
  }

  .organizer-column {
    max-width: 100%;
  }

  .organizers-section h2 {
    font-size: 36px;
  }
}