.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(11, 16, 38, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(184, 169, 232, 0.25);
  transition: background-color 0.3s ease-out;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 1.5rem;
  min-height: 64px;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--color-warm-parchment);
  flex-shrink: 0;
  min-width: 0;
}

.site-header__logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
  flex-shrink: 0;
}

.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-warm-parchment);
  white-space: nowrap;
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  border-radius: 8px;
  transition: background-color 0.3s ease-out;
}

.site-header__toggle:hover {
  background-color: rgba(184, 169, 232, 0.12);
}

.site-header__toggle:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(242, 201, 76, 0.9);
}

.site-header__toggle-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-lavender-mist);
  border-radius: 2px;
  transition: transform 0.3s ease-out, opacity 0.3s ease-out, background-color 0.3s ease-out;
}

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

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

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

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line {
  background-color: var(--color-golden-glow);
}

.site-header__nav {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-header__nav-item {
  margin: 0;
  padding: 0;
}

.site-header__nav-link {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-lavender-mist);
  text-decoration: none;
  padding: 0.5rem 0;
  white-space: nowrap;
  transition: color 0.3s ease-out;
}

.site-header__nav-link:hover {
  color: var(--color-golden-glow);
}

.site-header__nav-link:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px rgba(242, 201, 76, 0.9);
  border-radius: 4px;
}

@media (max-width: 1023px) {
  .site-header__inner {
    padding-inline: 1rem;
  }

  .site-header__toggle {
    display: flex;
  }

  .site-header__nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: rgba(11, 16, 38, 0.98);
    border-bottom: 1px solid rgba(184, 169, 232, 0.25);
    box-shadow: 0 20px 40px rgba(4, 7, 20, 0.55);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
  }

  .site-header__nav.is-open {
    max-height: calc(100vh - 64px);
    overflow-y: auto;
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1rem;
  }

  .site-header__nav-item {
    width: 100%;
  }

  .site-header__nav-link {
    display: block;
    padding: 0.75rem 0.5rem;
    border-radius: 8px;
    font-size: 1rem;
  }

  .site-header__nav-link:hover {
    background-color: rgba(184, 169, 232, 0.08);
    color: var(--color-golden-glow);
  }
}

@media (min-width: 1024px) {
  .site-header__inner {
    padding-inline: 3rem;
  }

  .site-header__logo {
    width: 40px;
    height: 40px;
  }

  .site-header__brand-text {
    font-size: 1.25rem;
  }
}

@media (max-width: 639px) {
  .site-header__logo {
    width: 32px;
    height: 32px;
  }

  .site-header__brand-text {
    font-size: 1rem;
  }
}