.main-header {
  background: #ffffff;
  border-bottom: 1px solid #e6ecf5;
  padding: 16px 0;
  margin-bottom: 30px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.02);
}

.header-inner {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
}

.brand-logo {
  height: 42px;
  width: auto;
}

.header-nav {
  display: flex;
  gap: 24px;
}

.nav-link {
  text-decoration: none;
  color: #6b7280;
  font-size: 14px;
  font-weight: 800;
  transition: 0.2s;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.nav-link:hover {
  color: #1B2D70;
}

.nav-link.active {
  color: #00A7DD;
}

@media (max-width: 600px) {
  .header-inner { flex-direction: column; gap: 15px; }
  .header-nav { gap: 15px; }
}