.main-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 40px;
  border-bottom: 1px solid var(--card-border);
  backdrop-filter: blur(10px);
}

.brand {
  font-weight: 600;
  font-size: 18px;
}

.nav-menu {
  display: flex;
  gap: 28px;
}

.nav-link {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 14px;
  position: relative;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--accent);
}

.nav-link.active {
  color: var(--accent);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 0;
  height: 2px;
  width: 100%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.right-section {
  display: flex;
  align-items: center;
  gap: 20px;
}

.avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: #0b1220;
}