.site-header {
  position: relative;
  z-index: 100;
  background-color: var(--color-nav-bg);
  color: var(--color-nav-text);
}

.site-header__container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.site-header__utility {
  background-color: var(--color-nav-bg);
  border-bottom: 1px solid rgba(247, 246, 242, 0.1);
  min-height: 2.25rem;
  display: flex;
  align-items: center;
}

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

.site-header__utility-link {
  display: inline-flex;
  align-items: center;
  min-height: 2.25rem;
  font-size: var(--text-overline-size);
  font-weight: var(--text-overline-weight);
  letter-spacing: var(--text-overline-letter-spacing);
  text-transform: var(--text-overline-transform);
  line-height: var(--text-overline-line-height);
  color: var(--color-nav-text);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: color var(--transition-fast);
}

.site-header__utility-link:hover {
  color: var(--color-accent-orange);
}

.site-header__main {
  min-height: 3.5rem;
  display: flex;
  align-items: center;
}

.site-header__main .site-header__container {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: nowrap;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  flex-shrink: 0;
  color: var(--color-nav-text);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.site-header__brand:hover {
  color: var(--color-accent-orange);
}

.site-header__logo {
  width: 2rem;
  height: 2rem;
  object-fit: contain;
  display: block;
}

.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.2;
  white-space: nowrap;
}

.site-header__nav {
  margin-inline-start: auto;
  display: flex;
  align-items: center;
}

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

.site-header__nav-list li {
  margin: 0;
  padding: 0;
}

.site-header__nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 3.5rem;
  font-size: var(--text-body-small-size);
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.4;
  color: var(--color-nav-text);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  transition: color var(--transition-fast);
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.25rem;
  height: 2px;
  background-color: var(--color-accent-lime);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

.site-header__nav-link:hover {
  color: var(--color-accent-orange);
}

.site-header__nav-link:hover::after {
  transform: scaleX(1);
}

.site-header__nav-link.is-active {
  color: var(--color-accent-lime);
}

.site-header__nav-link.is-active::after {
  transform: scaleX(1);
}

.site-header__menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 2.75rem;
  height: 2.75rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  margin-inline-start: auto;
  flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
}

.site-header__menu-toggle-line {
  display: block;
  width: 1.5rem;
  height: 2px;
  background-color: var(--color-nav-text);
  border-radius: 1px;
  transition:
    transform var(--transition-fast),
    opacity var(--transition-fast),
    background-color var(--transition-fast);
}

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

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

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

.site-header__menu-toggle:focus-visible {
  outline: var(--border-focus);
  outline-offset: var(--focus-offset);
}

.site-search-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background-color: rgba(27, 42, 74, 0.95);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: var(--space-lg);
  overflow-y: auto;
}

.site-search-overlay[hidden] {
  display: none;
}

.site-search-overlay__panel {
  width: 100%;
  max-width: 40rem;
  background-color: var(--color-surface);
  border-radius: var(--radius-large);
  padding: var(--space-lg);
  margin-block-start: 10vh;
}

.site-search-overlay__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-block-end: var(--space-md);
}

.site-search-overlay__title {
  font-family: var(--font-heading);
  font-size: var(--text-h3-size);
  font-weight: 600;
  line-height: var(--text-h3-line-height);
  color: var(--color-text-primary);
}

.site-search-overlay__close {
  width: 2.75rem;
  height: 2.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: var(--radius-medium);
  transition:
    color var(--transition-fast),
    background-color var(--transition-fast);
}

.site-search-overlay__close:hover {
  color: var(--color-accent-orange);
  background-color: var(--color-surface-alt);
}

.site-search-overlay__close:focus-visible {
  outline: var(--border-focus);
  outline-offset: var(--focus-offset);
}

.site-search-overlay__form {
  display: flex;
  gap: var(--space-sm);
  margin-block-end: var(--space-md);
}

.site-search-overlay__input {
  flex: 1;
  min-height: 3rem;
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-surface);
  border: var(--border-default);
  border-radius: var(--radius-medium);
  font-size: var(--text-body-size);
  font-weight: var(--text-body-weight);
  line-height: var(--text-body-line-height);
  color: var(--color-text-primary);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.site-search-overlay__input::placeholder {
  color: var(--color-text-secondary);
}

.site-search-overlay__input:focus {
  outline: none;
  border-color: var(--color-focus);
  box-shadow: 0 0 0 2px var(--color-focus);
}

.site-search-overlay__submit {
  flex-shrink: 0;
  min-height: 3rem;
  padding: var(--space-sm) var(--space-lg);
  background-color: var(--color-accent-orange);
  color: var(--color-surface);
  border: none;
  border-radius: var(--radius-medium);
  font-size: var(--text-overline-size);
  font-weight: var(--text-overline-weight);
  letter-spacing: var(--text-overline-letter-spacing);
  text-transform: var(--text-overline-transform);
  line-height: 1.3;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.site-search-overlay__submit:hover {
  background-color: var(--color-accent-orange-hover);
}

.site-search-overlay__submit:focus-visible {
  outline: var(--border-focus);
  outline-offset: var(--focus-offset);
}

.site-search-overlay__filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.site-search-overlay__filter {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  font-size: var(--text-caption-size);
  font-weight: 500;
  line-height: var(--text-caption-line-height);
  color: var(--color-text-secondary);
  cursor: pointer;
}

.site-search-overlay__filter input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  accent-color: var(--color-accent-orange);
  cursor: pointer;
}

@media (max-width: 1023px) {
  .site-header__main .site-header__container {
    gap: var(--space-md);
  }

  .site-header__brand-text {
    font-size: 1.125rem;
  }

  .site-header__nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-nav-bg);
    border-top: 1px solid rgba(247, 246, 242, 0.1);
    max-height: calc(100vh - 100%);
    overflow-y: auto;
    display: none;
    padding: var(--space-md) var(--container-padding);
    z-index: 150;
  }

  .site-header__nav.is-open {
    display: block;
  }

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

  .site-header__nav-link {
    display: flex;
    min-height: 3rem;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid rgba(247, 246, 242, 0.1);
    font-size: var(--text-body-size);
    font-weight: 500;
    letter-spacing: 0;
    text-transform: none;
  }

  .site-header__nav-link::after {
    display: none;
  }

  .site-header__nav-link.is-active {
    color: var(--color-accent-lime);
  }

  .site-header__menu-toggle {
    display: flex;
  }
}

@media (max-width: 767px) {
  .site-header__utility-nav {
    gap: var(--space-md);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .site-header__utility-nav::-webkit-scrollbar {
    display: none;
  }

  .site-header__utility-link {
    white-space: nowrap;
  }

  .site-header__logo {
    width: 1.75rem;
    height: 1.75rem;
  }

  .site-header__brand-text {
    font-size: 1.125rem;
  }

  .site-search-overlay {
    padding: var(--space-md);
  }

  .site-search-overlay__panel {
    margin-block-start: 5vh;
    padding: var(--space-md);
  }

  .site-search-overlay__form {
    flex-direction: column;
  }

  .site-search-overlay__submit {
    width: 100%;
  }
}