.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--bg-dark);
  border-bottom: 2px solid;
  border-image: linear-gradient(to right, var(--accent-violet), var(--accent-pink)) 1;
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
  height: 72px;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  flex-shrink: 0;
}

.header-logo-mark {
  width: 48px;
  height: 48px;
  display: block;
}

.header-logo-text {
  font-family: var(--ff-heading);
  font-size: 22px;
  font-weight: 700;
  color: var(--text-light);
  white-space: nowrap;
}

.primary-navigation {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin: 0;
  padding: 0;
  list-style: none !important;
}

.nav-list li {
  margin: 0;
  padding: 0;
}

.nav-list a {
  display: block;
  padding: var(--space-xs) 0;
  color: var(--text-light);
  text-decoration: none;
  font-family: var(--ff-body);
  font-size: var(--fs-body);
  font-weight: 400;
  transition: text-shadow 0.2s ease-in-out;
  white-space: nowrap;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  text-shadow: 0 0 8px rgba(255, 105, 180, 0.5);
}

.header-cta {
  flex-shrink: 0;
  margin-left: var(--space-lg);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  gap: 5px;
}

.nav-toggle-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-light);
  transition: transform 0.2s ease-in-out, opacity 0.2s ease-in-out;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 64em) {
  .header-container {
    height: 64px;
    padding: 0 var(--space-md);
  }

  .header-logo-mark {
    width: 36px;
    height: 36px;
  }

  .header-logo-text {
    font-size: 18px;
  }

  .nav-toggle {
    display: flex;
  }

  .primary-navigation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-dark);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 999;
    transform: translateX(-100%);
    transition: transform 0.3s ease-in-out;
  }

  .primary-navigation[aria-expanded="true"] {
    transform: translateX(0);
  }

  .nav-list {
    flex-direction: column;
    gap: var(--space-xl);
  }

  .nav-list a {
    font-size: var(--fs-h5);
  }

  .header-cta {
    display: none;
  }
}