@charset "utf-8";

/* 全体 */
body {
  font-family: 'Noto Sans JP', sans-serif;
  margin: 0;
  padding: 0;
  background: #fbfbf2;
  color: #2f2f2f;
  line-height: 1.6;
}

/* ヘッダー・ナビゲーション */
.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  background: #2f2f2f;
  color: #fff;
}

.site-title {
  font-size: 1.2rem;
  margin: 0;
}

.navbar ul {
  list-style: none;
  display: flex;
  gap: 1rem;
  margin: 0;
  padding: 0;
}

.navbar a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s;
}

.navbar a:hover {
  color: #ffeb3b;
}

.menu-toggle {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
}

/* スマホ用ナビ */
@media (max-width: 768px) {
  .navbar {
    display: none;
    flex-direction: column;
    background: #2f2f2f;
    position: absolute;
    top: 60px;
    right: 0;
    width: 200px;
    padding: 1rem;
  }

  .navbar ul {
    flex-direction: column;
    gap: 0.5rem;
  }

  .navbar.active {
    display: flex;
  }

  .menu-toggle {
    display: flex;
  }
}

/* セミナー一覧 */
.seminar-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding: 2rem;
  max-width: 1000px;
  margin: auto;
}

/*.seminar-card {
  background: linear-gradient(135deg, #ff9a9e, #fad0c4);
  border-radius: 1rem;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  transition: transform 0.3s;
}

.seminar-card:nth-child(2) {
  background: linear-gradient(135deg, #a18cd1, #fbc2eb);
}
*/
.seminar-card:hover {
  transform: translateY(-5px);
}

.seminar-card h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #fff;
}

.seminar-card p {
  font-size: 1rem;
  color: #fff;
  margin-bottom: 1.5rem;
}

.btn {
  display: inline-block;
  padding: 0.7rem 1.5rem;
  border-radius: 2rem;
  background: #fff;
  color: #333;
  font-weight: bold;
  text-decoration: none;
  transition: background 0.3s;
}

.btn:hover {
  background: #f1f1f1;
}

/* 詳細ページ */
.seminar-title {
  font-size: 2rem;         /* 大きめの文字 */
  text-align: center;      /* 中央揃え */
  margin: 2rem 0 1.5rem;   /* 上下余白 */
  color: #2c3e50;          /* 落ち着いた濃紺 */
  font-weight: 700;        /* 太字 */
  border-bottom: 3px solid #3498db; /* 下にアクセントライン */
  display: inline-block;   /* 下線の幅を文字に合わせる */
  padding-bottom: 0.3rem;
}

.seminar-detail {
  max-width: 800px;
  margin: 2rem auto;
  padding: 2rem;
  background: #fff;
  border-radius: 1rem;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.seminar-detail h2 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

.seminar-detail ul {
  margin-top: 1rem;
  padding-left: 1.2rem;
}

/* フッター */
footer {
  text-align: center;
  padding: 1rem;
  background: #eee;
  font-size: 0.9rem;
  margin-top: 2rem;
}

/* コンテンツカード */
.content {
  max-width: 900px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.card {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.card h2 {
  border-left: 6px solid #2196f3;
  padding-left: 0.5rem;
  margin-bottom: 1rem;
}

.card h3 {
  margin-top: 1rem;
  color: #333;
}

.card ul {
  padding-left: 1.2rem;
}

.card li {
  margin-bottom: 0.5rem;
}

/* ボタン */
.btn {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  background: #2196f3;
  color: #fff;
  border-radius: 6px;
  text-decoration: none;
  transition: background 0.3s;
}

.btn:hover {
  background: #1976d2;
}

/* ハンバーガーメニュー */
.menu-toggle {
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 25px;
}

.menu-toggle span {
  display: block;
  height: 3px;
  background: #333;
  border-radius: 2px;
}
/* ヒーローイメージ */
.hero {
  background: url('titleback.jpg') center/cover no-repeat;
  color: white;
  text-align: center;
  padding: 100px 20px;
  position: relative;
}
.hero::after {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.4);
}
.hero-content {
  position: relative;
  z-index: 1;
}
.hero h1 {
  font-size: 4rem;
  margin-bottom: 10px;
}
.hero p {
  font-size: 1.2rem;
  margin-bottom: 20px;
}

/* セクションごとの背景 */
.concept {
  background: #f8f4ef;
  padding: 60px 20px;
  text-align: center;
}
.seminar-list {
  background: #fafafa;
  padding: 60px 20px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.seminar-card {
  background: #2a3132;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}
.seminar-card h3 {
  margin-bottom: 10px;
}

/* バナーエリア */
.banners {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  padding: 40px 20px;
  background: #5a3d2b;
}
.banner {
  background: #fff;
  text-align: center;
  padding: 30px 0;
  border-radius: 8px;
  font-weight: bold;
}