.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  height: 72px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.75);
}

.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
    display: flex;
    align-items: center;
}

.brand img {
    display: block;
    width: 190px;
    max-width: 190px;
    height: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-inline: auto;
  color: #475569;
  font-size: 15px;
  font-weight: 800;
}

.nav a {
  position: relative;
  transition: color 0.2s ease;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 1px;
  background: #2563eb;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.2s ease;
}

.nav a:hover {
  color: #2563eb;
}

.nav a:hover::after {
  transform: scaleX(1);
}

.header-btn {
  min-height: 54px;
  padding-inline: 24px;
  font-size: 15px;
  box-shadow: none;
}