@media (min-width: 1200px) {
  #intro {
    background-attachment: fixed;
  }
}

@media (max-width: 1199.98px) {
  #header .header-container {
    max-width: 100%;
  }

  .nav-menu a {
    padding: 8px 4px;
  }

  .img-banner {
    display: none;
    height: 0;
    padding: 0;
  }

  .txt-banner span {
    font-size: 30px;
    font-weight: bold;
    color: #2c718d;
  }
}

@media (max-width: 991.98px) {
  #header {
    background: transparent;
    height: 70px;
    padding: 15px 0;
    transition: all 0.5s;
  }

  #header.header-scrolled {
    background: rgba(6, 12, 34, 0.98);
  }

  #nav-menu-container {
    display: none;
  }

  #mobile-nav-toggle {
    display: inline;
  }

  #intro .intro-container {
    top: 70px;
  }

  #intro h1 {
    font-size: 34px;
  }

  #intro p {
    font-size: 16px;
  }
}

@media (max-width: 767.98px) {
  .back-to-top {
    bottom: 15px;
  }

  .center-logo {
    width: 250px;
  }

  .member-modal .details h2 {
    margin-top: 10px;
  }
}