.top-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
  padding: var(--spacing-md) var(--spacing-xl);
  background-color: var(--color-canvas);
  border-bottom: 1px solid var(--color-line);
  box-shadow: var(--shadow-sm);
}

.top-nav__brand {
  font-weight: 700;
  color: var(--color-ink);
  text-decoration: none;
  font-size: 1.1rem;
}

.top-nav__links {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.top-nav__links a:not(.btn) {
  text-decoration: none;
  color: var(--color-ink);
  font-weight: 500;
  padding: 0 var(--spacing-sm);
}

.top-nav__links a:not(.btn):hover {
  color: var(--color-primary);
}

@media (max-width: 640px) {
  .top-nav__links > a:not(.btn) {
    display: none;
  }
}