body {
      background: #fff;
      color: #333;
      margin: 0;
      padding: 0;
    }
    .container {
      width: 90%;
      max-width: 1000px;
      margin: 0 auto;
      padding: 40px 0;
    }
    h1 {
      text-align: center;
      color: #0c2340;
      font-size: 2.5rem;
      margin-bottom: 40px;
    }
    .speaker-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 30px;
      text-align: center;
    }
    .speaker {
      padding: 20px;
      border: 1px solid #eee;
      border-radius: 12px;
      transition: box-shadow 0.3s ease;
    }
    .speaker:hover {
      box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    }
    .speaker img {
      width: 100%;
      max-width: 150px;
      height: auto;
      border-radius: 50%;
      margin-bottom: 15px;
    }
    .speaker h3 {
      color: #0c2340;
      margin: 10px 0 5px;
    }
    .speaker p {
      font-size: 1rem;
      color: #666;
    }