html, body {
    height: 100%;
    margin: 0;
    padding: 0;
  }
  
  body {
    background-color: #e9f2f9;
    color: #333333;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    flex-direction: column;
  }
  
  .site-header {
    background-color: #ffffff;
    padding: 15px 40px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
  }
  
  .nav-links {
    display: flex;
    justify-content: flex-start;
    gap: 25px;
  }
  
  .nav-links a {
    text-decoration: none;
    color: #003366;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s ease;
  }
  
  .nav-links a:hover {
    color: #0077cc;
  }
  
  .main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 10px;
  }
  
  .container {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 40px;
    flex-wrap: wrap;
    max-width: 1400px;
    margin: 0 auto;
  }
  
  .box {
    background-color: #ffffff;
    padding: 25px 20px;
    border-radius: 16px;
    width: 360px;
    height: 420px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
  }
  
  h2 {
    margin-bottom: 18px;
    font-size: 20px;
    color: #003366;
  }
  
  input[type="text"] {
    width: 100%;
    box-sizing: border-box;
    padding: 10px 12px;
    margin-bottom: 15px;
    border-radius: 6px;
    border: 1px solid #cccccc;
    background-color: #f6fbff;
    color: #003366;
    font-size: 15px;
  }
  
  button {
    padding: 12px;
    background-color: #0077cc;
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: bold;
    font-size: 15px;
    cursor: pointer;
    transition: background-color 0.3s ease-in-out;
  }
  
  button:hover {
    background-color: #005fa3;
  }
  
  #participantes p {
    text-align: left;
    margin: 8px 0;
    background-color: #f0f8ff;
    padding: 10px;
    border-radius: 8px;
    box-shadow: inset 0 0 4px #cccccc;
    font-weight: 500;
    color: #003366;
  }
  
  /* PARTICIPANTES */
  
  .participants-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    overflow-y: auto;
    max-height: 330px;
    padding-right: 5px;
  }
  
  .participant {
    background-color: #f6fbff;
    border: 1px solid #ccc;
    border-radius: 8px;
    padding: 12px;
    font-weight: 500;
    color: #003366;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
  }
  
  .participant:hover {
    background-color: #e2f1fb;
    border-color: #0077cc;
  }
  
  /* ROBÔ E LOGO */
  
  .ai-bot-icon {
    margin-top: 20px;
    text-align: center;
    font-size: 14px;
    color: #003366;
    margin-bottom: 10px;
  }
  
  .ai-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-bottom: 6px;
  }
  
  .ai-robot {
    width: 100px;
    height: auto;
  }
  
  .ai-logo {
    height: 138px;
    width: auto;
    filter: drop-shadow(0 0 2px #0077cc88);
  }
  
  /* FOOTER */
  
  .site-footer {
    background-color: #ffffff;
    color: #003366;
    text-align: center;
    padding: 15px 10px;
    font-size: 14px;
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.05);
  }
  

  #participantes {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    margin-top: 10px;
    background-color: #f9f9f9;
}