:root {
  --tn-green: #64ff00;
  --tn-dark-green: #0e6008;
  --tn-black: #000000;
  --tn-white: #f7f7f7;
}

html,
body {
  margin: 0;
  background-color: var(--tn-black);
}

.cid-vtHNa3H6GC,
.cid-vtHNa3H6GC .navbar {
  background-color: var(--tn-black) !important;
}

/* Shared black header with a high-contrast Tech Neighbor green outline. */
.cid-vtHNa3H6GC .container {
  background: rgba(0, 0, 0, 0.96) !important;
  background-color: var(--tn-black) !important;
  border: 2px solid var(--tn-green);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.4);
}

.cid-vtHNa3H6GC .navbar-caption,
.cid-vtHNa3H6GC .nav-link {
  color: var(--tn-white) !important;
}

.cid-vtHNa3H6GC .nav-link:hover,
.cid-vtHNa3H6GC .nav-link:focus,
.cid-vtHNa3H6GC .navbar-caption:hover,
.cid-vtHNa3H6GC .navbar-caption:focus {
  color: var(--tn-green) !important;
}

.cid-vtHNa3H6GC .navbar-nav .nav-item .nav-link:hover,
.cid-vtHNa3H6GC .navbar-nav .nav-item .nav-link:focus {
  background-color: rgba(100, 255, 0, 0.12);
}

.cid-vtHNa3H6GC .navbar-toggler .hamburger span {
  background-color: var(--tn-green) !important;
}

.cid-vtHNa3H6GC .navbar.opened .container {
  height: auto;
  min-height: 90px;
  border-radius: 2rem;
}

/* Opening notice placed directly beneath the fixed navigation. */
.opening-banner {
  position: relative;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  margin-top: 106px;
  padding: 0.65rem 1rem;
  color: var(--tn-black);
  background: var(--tn-green);
  border-top: 2px solid var(--tn-dark-green);
  border-bottom: 2px solid var(--tn-dark-green);
  text-align: center;
}

.opening-banner p {
  margin: 0;
  font-family: "Inter Tight", Arial, sans-serif;
  font-size: clamp(1rem, 2vw, 1.15rem);
  font-weight: 800;
  line-height: 1.3;
}

.footer3 .header-menu a {
  color: inherit;
  text-decoration: none;
}

.footer3 .header-menu a:hover,
.footer3 .header-menu a:focus {
  color: var(--tn-green);
  text-decoration: underline;
}

@media (max-width: 767px) {
  .opening-banner {
    margin-top: 56px;
    min-height: 44px;
  }

  .cid-vtHNa3H6GC .navbar.opened .container {
    min-height: 56px;
  }
}