.header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-md);
  max-width: 1100px;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-primary);
}

.nav {
  display: flex;
  gap: var(--space-lg);
}

.nav a {
  font-weight: 500;
  color: var(--color-text);
  transition: color 0.2s;
}

.nav a:hover {
  color: var(--color-primary);
}