.header-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid rgba(64, 158, 255, .16);
  background: rgba(255, 255, 255, .92);
  color: var(--text-primary);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(29, 33, 41, .08);
  transition: all .22s ease;
}

.nav-toggle:hover {
  color: var(--primary);
  border-color: rgba(64, 158, 255, .3);
  box-shadow: 0 12px 24px rgba(64, 158, 255, .16);
}

.nav-toggle:focus-visible {
  outline: 2px solid rgba(64, 158, 255, .28);
  outline-offset: 3px;
}

.nav-toggle-bars {
  position: relative;
  width: 18px;
  height: 14px;
  display: block;
}

.nav-toggle-bars span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: top .22s ease, transform .22s ease, opacity .18s ease;
}

.nav-toggle-bars span:nth-child(1) {
  top: 0;
}

.nav-toggle-bars span:nth-child(2) {
  top: 6px;
}

.nav-toggle-bars span:nth-child(3) {
  top: 12px;
}

.header-content.is-nav-open .nav-toggle-bars span:nth-child(1) {
  top: 6px;
  transform: rotate(45deg);
}

.header-content.is-nav-open .nav-toggle-bars span:nth-child(2) {
  opacity: 0;
}

.header-content.is-nav-open .nav-toggle-bars span:nth-child(3) {
  top: 6px;
  transform: rotate(-45deg);
}

@media (max-width: 768px) {
  .header-topline {
    width: 100%;
  }

  .nav-toggle {
    display: inline-flex;
    flex-shrink: 0;
  }
}