/* ==========================================================================
   Header, Mobile Menu & Search Overlay
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
}

.header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--header-height);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.header__logo a {
  display: flex;
  align-items: center;
  height: var(--header-height);
}

.header__logo img {
  height: 22px;
  width: auto;
}

.header__nav {
  display: none;
  align-items: center;
  gap: 24px;
}

.header__nav-link {
  position: relative;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-heading);
  padding: 4px 0;
  transition: color var(--transition);
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--tb-red);
  transition: width var(--transition);
}

.header__nav-link:hover {
  color: var(--tb-red);
}

.header__nav-link:hover::after {
  width: 100%;
}

.header__nav-dropdown {
  position: relative;
}

.header__nav-arrow {
  display: inline-block;
  vertical-align: middle;
  margin-left: 2px;
  transition: transform 200ms;
}
.header__nav-dropdown:hover .header__nav-arrow {
  transform: rotate(180deg);
}

.header__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 160px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition);
  z-index: var(--z-menu);
  padding: 8px 0;
}

.header__nav-dropdown:hover .header__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.header__dropdown a {
  display: block;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-heading);
  transition: background var(--transition), color var(--transition);
}

.header__dropdown a:hover {
  background: #f5f5f5;
  color: var(--tb-red);
}

[data-theme="dark"] .header__dropdown a:hover {
  background: #222222;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header__btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--color-heading);
  transition: background var(--transition);
}

.header__btn:hover {
  background: #f0f0f0;
}

[data-theme="dark"] .header__btn:hover {
  background: #222222;
}

.header__btn svg {
  width: 18px;
  height: 18px;
}

.header__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 36px;
  height: 36px;
  gap: 5px;
}

.header__hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-heading);
  transition: transform var(--transition), opacity var(--transition);
}

.header__hamburger.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.header__hamburger.is-active span:nth-child(2) {
  opacity: 0;
}

.header__hamburger.is-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Menu */

.mobile-menu {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 85vw;
  max-width: 360px;
  height: calc(100vh - var(--header-height));
  background: var(--color-bg);
  z-index: var(--z-menu);
  transform: translateX(-100%);
  transition: transform 300ms ease;
  overflow-y: auto;
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
}

.mobile-menu.is-open {
  transform: translateX(0);
}

.mobile-menu__overlay {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: calc(var(--z-menu) - 1);
  opacity: 0;
  visibility: hidden;
  transition: opacity 300ms ease, visibility 300ms ease;
}

.mobile-menu__overlay.is-visible {
  opacity: 1;
  visibility: visible;
}

/* Close button */
.mobile-menu__close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--color-meta);
  background: none;
  border: none;
  cursor: pointer;
  z-index: 2;
}

.mobile-menu__close:hover {
  color: var(--color-heading);
}

/* Nav section */
.mobile-menu__nav {
  padding: 56px 24px 24px;
  flex: 1;
  overflow-y: auto;
}

/* WP menu items — <li class="menu-item"><a> */
.mobile-menu__nav > .menu-item > a,
.mobile-menu__nav > li > a,
.mobile-menu__link {
  display: block;
  padding: 14px 0;
  font-family: var(--font-heading-sans);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-heading);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border);
  letter-spacing: -0.01em;
}

.mobile-menu__nav > .menu-item > a:hover,
.mobile-menu__nav > li > a:hover,
.mobile-menu__link:hover {
  color: var(--tb-red);
}

/* Submenus — Languages, etc. */
.mobile-menu__nav .sub-menu {
  padding-left: 16px;
  margin: 0;
  display: none;
}

.mobile-menu__nav .menu-item-has-children.is-open > .sub-menu {
  display: block;
}

.mobile-menu__nav .sub-menu > li > a {
  display: block;
  padding: 10px 0;
  font-size: 14px;
  font-weight: 400;
  color: var(--color-body);
  border-bottom: 1px solid var(--color-border-light, rgba(0,0,0,0.06));
  text-decoration: none;
}

.mobile-menu__nav .sub-menu > li > a:hover {
  color: var(--tb-red);
}

/* Parent item arrow for submenus */
.mobile-menu__nav .menu-item-has-children > a {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mobile-menu__nav .menu-item-has-children > a::after {
  content: '›';
  font-size: 20px;
  color: var(--color-meta);
  transition: transform 200ms;
}

.mobile-menu__nav .menu-item-has-children.is-open > a::after {
  transform: rotate(90deg);
}

/* Dark mode toggle at bottom */
.mobile-menu__dark {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 24px;
  border-top: 1px solid var(--color-border);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-heading);
  background: none;
  border-left: none;
  border-right: none;
  border-bottom: none;
  cursor: pointer;
  width: 100%;
  text-align: left;
  margin-top: auto;
}

.mobile-menu__dark:hover {
  color: var(--tb-red);
}

/* Search Overlay */

.search-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.92);
  z-index: var(--z-menu);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 300ms ease, visibility 300ms ease;
}

.search-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.search-overlay__inner {
  width: 100%;
  max-width: 640px;
  padding: 0 24px;
}

.search-overlay__input {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 2px solid rgba(255, 255, 255, 0.3);
  font-family: var(--font-serif);
  font-size: 2rem;
  color: #ffffff;
  padding: 16px 0;
  outline: none;
  transition: border-color var(--transition);
}

.search-overlay__input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

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

.search-overlay__close {
  position: absolute;
  top: 24px;
  right: 24px;
  color: #ffffff;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

/* ---- Nav list reset (wp_nav_menu <ul><li>) ---- */

.header__nav ul,
.header__nav ol,
.header__nav li,
.header__nav .menu li,
.mobile-menu ul,
.mobile-menu ol,
.mobile-menu li,
.mobile-menu__nav,
.mobile-menu__nav li {
  list-style: none !important;
  list-style-type: none !important;
  padding: 0;
  margin: 0;
  display: block;
}

.header__nav li,
.header__nav .menu li {
  display: inline-block;
}

.header__nav .menu li::before,
.header__nav .menu li::marker,
.header__nav li::before,
.header__nav li::marker,
.mobile-menu .menu li::before,
.mobile-menu .menu li::marker,
.mobile-menu__nav li::before,
.mobile-menu__nav li::marker,
.mobile-menu li::before,
.mobile-menu li::marker {
  content: none !important;
  display: none !important;
}

/* ---- Sub-sub-menu (multi-level) ---- */

.header__dropdown-submenu {
  position: absolute;
  left: 100%;
  top: 0;
  min-width: 180px;
  background: #ffffff;
  border: 1px solid #e5e5e5;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 200ms, visibility 200ms;
  list-style: none;
  margin: 0;
}

.header__dropdown-submenu li {
  display: block;
}

.header__dropdown-submenu a {
  display: block;
  padding: 6px 16px;
  font-size: 13px;
  color: var(--color-heading);
  white-space: nowrap;
  transition: color 200ms, background 200ms;
}

.header__dropdown-submenu a:hover {
  color: var(--tb-red);
  background: rgba(0,0,0,0.04);
}

/* Arrow for parent items with sub-sub-menus */
.header__dropdown li.menu-item-has-children > a::after {
  content: '\203A';
  float: right;
  margin-left: 8px;
  color: var(--color-meta);
}

.header__dropdown li {
  position: relative;
}
.header__dropdown li:hover > .header__dropdown-submenu {
  opacity: 1;
  visibility: visible;
}

/* ---- Responsive ---- */

@media (max-width: 767px) {
  .header__hamburger {
    display: flex;
  }
}

@media (min-width: 768px) {
  .header__nav {
    display: flex;
  }

  .header__hamburger {
    display: none;
  }
}

/* Header dark mode — follows page theme */
[data-theme="dark"] .site-header {
  background-color: var(--color-bg);
  border-bottom-color: var(--color-border);
}
[data-theme="dark"] .header__nav-link,
[data-theme="dark"] .header__btn {
  color: var(--color-heading);
}
[data-theme="dark"] .header__hamburger span {
  background-color: var(--color-heading);
}
[data-theme="dark"] .header__dropdown {
  background: #1a1a1a;
  border-color: var(--color-border);
}
[data-theme="dark"] .header__dropdown a {
  color: var(--color-heading);
}
[data-theme="dark"] .header__dropdown-submenu {
  background: #1a1a1a;
  border-color: var(--color-border);
}
[data-theme="dark"] .header__dropdown-submenu a {
  color: var(--color-heading);
}
[data-theme="dark"] .header__dropdown-submenu a:hover {
  background: #222222;
}