.main-nav {
  background: #fff;
  z-index: 1;
}

.main-nav .navbar-brand {
  padding: 0;
}

.main-nav .navbar-nav .nav-item {
  position: relative;
  font-family: sans-serif;
}

.main-nav .navbar-nav .nav-item .nav-link {
  position: relative;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  color: #000;
  padding-left: 20px;
  padding-right: 20px;
  line-height: 45px;
}

@media (max-width: 992px) {
  .main-nav .navbar-nav .nav-item .nav-link {
    line-height: 25px;
  }
}

.main-nav .navbar-nav .nav-item .nav-link span i {
  font-size: 11px;
}

.main-nav .navbar-nav .nav-item.active .nav-link {
  color: #2e7eed;
}

.main-nav .navbar-nav .nav-item.active .nav-link:before {
  content: "";
  background: #2e7eed;
  width: 60%;
  height: 2px;
  position: absolute;
  top: 0;
  left: 20%;
}

@media (max-width: 992px) {
  .main-nav .navbar-nav .nav-item.active .nav-link:before {
    display: none;
  }
}

.main-nav .dropdown {
  position: relative;
}

.main-nav .dropdown .open>a,
.main-nav .dropdown .open>a:focus,
.main-nav .dropdown .open>a:hover {
  background: transparent;
}

.main-nav .dropdown.full-width .dropdown-menu {
  left: 0 !important;
  right: 0 !important;
}

@media (max-width: 992px) {
  .main-nav .dropdown {
    transform: none;
    left: auto;
    position: relative;
    text-align: center;
  }
}

.main-nav .dropdown .dropdown-menu {
  border-radius: 0;
  padding: 0;
  border: 0;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
  display: none;
  margin-top: 0;
}

.main-nav .dropdown .dropdown-menu.show {
  display: block;
}

@media (max-width: 992px) {
  .main-nav .dropdown .dropdown-menu {
    text-align: center;
    float: left !important;
    width: 100%;
    margin: 0;
  }
}

.main-nav .dropdown .dropdown-menu .dropdown-item {
  font-size: 13px;
  padding: 3px 22px;
  transition: 0.3s ease;
}

.main-nav .dropdown .dropdown-menu .dropdown-item.active,
.main-nav .dropdown .dropdown-menu .dropdown-item.focus,
.main-nav .dropdown .dropdown-menu .dropdown-item:focus,
.main-nav .dropdown .dropdown-menu .dropdown-item:hover {
  background-color: transparent;
  color: #2e7eed;
}

.main-nav .dropdown .dropdown-menu li:first-child {
  margin-top: 10px;
}

.main-nav .dropdown .dropdown-menu li:last-child {
  margin-bottom: 10px;
}

@media (min-width: 992px) {
  .main-nav .dropdown .dropdown-menu {
    position: absolute;
    display: block;
    visibility: hidden;
    opacity: 0;
    transform: translateY(10px);
    transition: visibility 0.2s, opacity 0.2s, transform 500ms cubic-bezier(0.43, 0.26, 0.11, 0.99);
  }

  .main-nav .dropdown:hover>.dropdown-menu {
    opacity: 1;
    visibility: visible;
    color: #777;
    transform: translateY(0px);
  }
}

.jumbotron {
  background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
}

.card-header {
  background-color: #f8f9fa;
}

.version-badge {
  font-size: 0.8rem;
  vertical-align: super;
}

.section-title {
  border-left: 4px solid #3498db;
  padding-left: 1rem;
}

.download-link {
  transition: all 0.3s ease;
}

.download-link:hover {
  transform: translateX(5px);
}

.navbar-title {
  color: #000;
}

.unzip-code {
  background-color: #e83e8c;
  color: #fff;
  padding: 5px;
  border-radius: 5px;
  position: relative;
  bottom: 2px;
}