/*  talks.css - トップページ固有のスタイル */
/* ヒーローバナーセクション */
.hero-banner {
  padding: 80px 40px 30px;
  min-height: 100px;
}
/* ヒーローバナー関連のスタイル */
.bg-image-banner {
  height: auto;
  background-image: url("../images/backgrounds/talks-bg.jpg");
  background-repeat: no-repeat;
  background-position: 50% 50%;
  background-size: cover;
  background-color: transparent;
}
/* タイトル */
/* .event-title {
  font-size: 42px;
  font-weight: bold;
  margin-bottom: 20px;
  line-height: 1.2;
  color: #fff;
} */
.paragraph p {
  font-size: 18px;
  font-weight: bold;
  margin: 0 0 -30px;
}
/* contents */
#wsite-content {
  background-color: #fff;
}

/* 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: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 10px;
}

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

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

.talk-title {
  font-size: 200%;
}
/* 整理したクラス */
.keynote-details p,
.talk-details p {
  font-size: 14px;
}

.keynote-section,
.talk-section {
  margin: 0 -50px 0;
  padding: 70px 50px;
}
.keynote-section:first-child {
  margin-top: -50px;
}
.keynote-section:hover,
.talk-section:hover {
  background-color: #f9f9f9;
}
.keynote-section a,
.talk-section a {
  text-decoration: underline;
}
.keynote-content,
.talk-content {
  display: flex;
  gap: 40px;
  align-items: flex-start;
}
.speaker-name {
  font-weight: bold;
  margin-bottom: 15px;
}
.back-to-top {
  text-align: center;
}

/* レスポンシブ対応 */
@media screen and (max-width: 768px) {
  .white-text {
    margin: 0;
  }
  .paragraph p {
    font-size: 18px;
    font-weight: bold;
    margin: 0;
  }
  .keynote-content,
  .talk-content {
    display: block;
  }
  .keynote-section,
  .talk-section {
    margin: 40px 0 0;
    padding: 0;
  }
  .keynote-speaker {
    width: auto;
    max-width: 100%;
  }
  .talk-title {
    font-size: 6vw;
  }
  div.paragraph {
    margin: 0 auto 1em;
  }
  .keynote-details p,
  .talk-details p {
    font-size: 16px;
  }
}