.landing-page-shell {
  background: #05070a;
  color: #d8e1ee;
}

.landing-page-shell .header {
  position: sticky;
  background: rgba(5, 7, 10, 0.94);
  border-bottom: 1px solid rgba(151, 179, 220, 0.12);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.landing-page-shell .header .navbar {
  min-height: 66px;
}

.landing-page-shell .header .dropdown-menu {
  background: #0b121d;
  border-color: #2478ff;
  box-shadow: 0 24px 55px rgba(0, 0, 0, 0.4);
}

.landing-page-shell .header .contact-btn {
  background: linear-gradient(135deg, #2478ff, #145bd7);
  border-color: transparent;
  box-shadow: 0 10px 25px rgba(36, 120, 255, 0.24);
}

.landing-page-shell .footer {
  position: relative;
  z-index: 2;
  background: #070b11;
  border-top: 1px solid rgba(151, 179, 220, 0.1);
}

.landing-page-shell .footer .collapse:not(.show) {
  display: block;
}

.landing-page-shell main + .footer {
  margin-top: 0;
}

@media (max-width: 991px) {
  .landing-page-shell .header {
    position: sticky;
  }

  .landing-page-shell .header .navbar-collapse {
    background: #0b121d;
  }
}

@media (max-width: 767px) {
  .landing-page-shell .footer .collapse:not(.show) {
    display: none;
  }
}