.banner {
      position: relative;
      height: 50vh;
      background-image: url('images/first-ua-login.jpg');
      background-size: cover;
      background-position: center;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      color: white;
    }

    .banner::before {
      content: "";
      position: absolute;
      top: 0; left: 0; right: 0; bottom: 0;
      background-color: rgba(0, 0, 0, 0.5); 
      z-index: 1;
    }

    .banner-content {
      position: relative;
      z-index: 2;
      padding: 20px;
    }

    .banner h1 {
      font-size: 3rem;
      margin-bottom: 20px;
    }

    .banner button {
      padding: 12px 24px;
      font-size: 1rem;
      color: white;
      background-color: #ff6600;
      border: none;
      border-radius: 5px;
      cursor: pointer;
      transition: background-color 0.3s ease;
    }

    .banner button:hover {
      background-color: #e65c00;
    }
    @media (max-width: 768px) {
      .banner h1 {
        font-size: 2rem;
      }

      .banner button {
        font-size: 0.9rem;
        padding: 10px 20px;
      }
    }

    @media (max-width: 480px) {
      .banner h1 {
        font-size: 1.5rem;
      }

      .banner button {
        width: 100%;
      }
    }