/* ====== Header & Navigation ====== */
header {
  background-color: #001f3f; /* Dark Navy Blue */
  color: #fff;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

.brand img {
  height: 48px;
  width: auto;
  max-width: 100%;
}

.menu-toggle {
  display: none;
  font-size: 1.8rem;
  cursor: pointer;
  color: #fff;
  z-index: 1000;
}

#nav-links {
  display: flex;
  gap: 20px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

#nav-links a {
  color: #fff;
  font-weight: 500;
}

#nav-links a:hover {
  color: var(--accent-color);
}

nav a.active {
  color: var(--accent-color);
  font-weight: bold;
  border-bottom: 2px solid var(--accent-color);
}

nav a {
  font-weight: 600;
  padding: 0.5rem 1rem;
}