/* Top Navigation Bar */
.site-nav {
  border-bottom: 1px solid var(--color-border-light);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  height: var(--nav-height);
  gap: var(--space-xs);
}

/* Logo */
.site-nav__item--logo {
  margin-right: auto;
}

.site-nav__item--logo a {
  display: flex;
  align-items: center;
  height: 100%;
  padding-inline: var(--space-md);
}

.site-nav__item--logo img {
  height: 28px;
  width: auto;
}

/* Menu Items */
.site-nav__items {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 0;
}

.site-nav__item {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
}

.site-nav__trigger {
  display: flex;
  align-items: center;
  height: 100%;
  padding-inline: var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-normal);
  color: var(--color-text);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.site-nav__trigger:hover {
  color: var(--color-link);
}

.site-nav__item[data-open="true"] > .site-nav__trigger {
  border-bottom-color: var(--color-link);
  color: var(--color-link);
}

/* Dropdown (single column, simplified) */
.site-nav__dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-dropdown-bg);
  border: 1px solid var(--color-border);
  box-shadow: 0 8px 24px var(--color-dropdown-shadow);
  padding: var(--space-lg);
  z-index: 100;
  min-width: 220px;
}

.site-nav__dropdown--right {
  left: auto;
  right: 0;
}

.site-nav__item[data-open="true"] > .site-nav__dropdown {
  display: block;
}

.site-nav__dropdown-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.site-nav__dropdown-link {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text);
  padding: var(--space-xs) 0;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.site-nav__dropdown-link:hover {
  text-decoration: underline;
}

/* Search trigger */
.site-nav__search-trigger {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding-inline: var(--space-md);
  cursor: pointer;
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.site-nav__search-trigger:hover {
  color: var(--color-link);
}

.site-nav__search-trigger svg {
  width: 18px;
  height: 18px;
}

/* Search Overlay */
.search-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-overlay);
  z-index: 200;
  align-items: flex-start;
  justify-content: center;
  padding-top: calc(var(--nav-height) + var(--space-xl));
}

.search-overlay--open {
  display: flex;
}

.search-overlay__inner {
  background: var(--color-dropdown-bg);
  border: 1px solid var(--color-border);
  box-shadow: 0 8px 24px var(--color-dropdown-shadow);
  padding: var(--space-lg);
  width: 100%;
  max-width: 600px;
}

.search-overlay__input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  outline: none;
}

.search-overlay__input:focus {
  border-color: var(--color-link);
}

.search-overlay__results {
  margin-top: var(--space-sm);
  max-height: 400px;
  overflow-y: auto;
}

.search-overlay__result {
  display: block;
  padding: var(--space-sm) var(--space-md);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border-light);
  transition: background var(--transition-fast);
}

.search-overlay__result:last-child {
  border-bottom: none;
}

.search-overlay__result:hover {
  background: var(--color-overlay);
}

.search-overlay__result-category {
  display: block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  margin-bottom: 2px;
}

.search-overlay__result-name {
  display: block;
  font-size: var(--font-size-base);
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
}

.search-overlay__result-desc {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: var(--line-height);
  margin-top: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Mobile hamburger (hidden on desktop) */
.site-nav__mobile-toggle {
  display: none;
}

/* Mobile overlay (hidden on desktop) */
.site-nav-mobile {
  display: none;
}

/* Mobile responsive */
@media (max-width: 768px) {
  .site-nav__items {
    display: none;
  }

  .site-nav__items:first-child {
    display: flex;
  }

  .site-nav__items:first-child .site-nav__item:not(.site-nav__item--logo) {
    display: none;
  }

  .site-nav__inner {
    justify-content: space-between;
  }

  .site-nav__mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    cursor: pointer;
    color: var(--color-text);
    background: none;
    border: none;
    font-size: 22px;
    line-height: 1;
  }

  /* Full-page mobile overlay */
  .site-nav-mobile {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 300;
    flex-direction: column;
    overflow: hidden;
  }

  .site-nav-mobile--open {
    display: flex;
  }

  .site-nav-mobile__topbar {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    height: var(--nav-height);
    padding-inline: var(--space-md);
    background: var(--color-bg-subtle);
    border-bottom: 1px solid var(--color-border-light);
    flex-shrink: 0;
    gap: var(--space-sm);
  }

  .site-nav-mobile__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    cursor: pointer;
    color: var(--color-text);
    background: none;
    border: none;
    font-size: 22px;
    line-height: 1;
  }

  .site-nav-mobile__body {
    flex: 1;
    overflow-y: auto;
    background: var(--color-bg);
  }

  .site-nav-mobile__list {
    list-style: none;
  }

  .site-nav-mobile__item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--color-border-light);
  }

  .site-nav-mobile__link {
    display: block;
    flex: 1;
    padding: var(--space-md);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    text-decoration: none;
  }

  .site-nav-mobile__arrow {
    padding-right: var(--space-md);
    font-size: var(--font-size-base);
    color: var(--color-text-muted);
    cursor: pointer;
    background: none;
    border: none;
  }

  /* Submenu panel */
  .site-nav-mobile__panel {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 250ms ease;
    z-index: 1;
  }

  .site-nav-mobile__panel--active {
    transform: translateX(0);
  }

  .site-nav-mobile__panel-header {
    display: flex;
    align-items: center;
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-border-light);
    position: relative;
  }

  .site-nav-mobile__back {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    cursor: pointer;
    color: var(--color-text);
    background: none;
    border: none;
    font-size: 18px;
    position: absolute;
    left: var(--space-xs);
  }

  .site-nav-mobile__panel-title {
    flex: 1;
    text-align: center;
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-base);
    color: var(--color-text);
  }

  .site-nav-mobile__submenu-list {
    list-style: none;
  }

  .site-nav-mobile__submenu-link {
    display: block;
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-base);
    color: var(--color-text);
    text-decoration: none;
    border-bottom: 1px solid var(--color-border-light);
  }

  .site-nav-mobile__submenu-link:hover {
    background: var(--color-bg-subtle);
  }

  [data-search-trigger] {
    display: none;
  }
}

@media (max-width: 768px) and (prefers-color-scheme: dark) {
  .site-nav-mobile__topbar {
    background: #1f1f1f;
  }
}