body {
  margin: 0;
  padding: 1.5rem;
  background: #070b10;
  color: #cfeff2;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

a {
  color: #6fe6ff;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.window-wrapper {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
}

.window {
  background: #0c1620;
  text-align: center;
  border: 1px solid rgba(95, 209, 216, 0.35);
  border-radius: 4px;
  overflow: hidden;
  flex: 1;
}

.window-bar {
  margin: 0;
  padding: 0.6rem 0.75rem;
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: #5fd1d8;
  border-bottom: 1px solid rgba(95, 209, 216, 0.5);
  background: rgba(95, 209, 216, 0.05);
}

.window-content {
  text-align: center;
  padding: 0.75rem;
  font-size: 0.85rem;
  line-height: 1.4;
}
.nav {
  display: flex;
  justify-content: space-around;  /* evenly space the 4 links */
  padding: 0.5rem 0;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid rgba(95, 209, 216, 0.35);
}

.nav a {
  color: #5fd1d8;
  text-decoration: none;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.85rem;
}

.nav a:hover {
  text-decoration: underline;
}


img {
  max-width: 100%;
  display: block;
  margin: 0.5rem 0;
  border: 1px solid rgba(95, 209, 216, 0.25);
}

ul {
  padding-left: 1rem;
  margin: 0.5rem 0;
}