/**
 * Sticky header, desktop nav, mega-menu ready, mobile drawer.
 */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  height: var(--header-height);
  overflow: visible;
  background-color: var(--color-white);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition:
    border-color var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard);
}

.site-header.is-scrolled {
  background-color: var(--color-white);
  border-bottom-color: var(--color-border-subtle);
  box-shadow: var(--shadow-xs);
}

[data-theme="dark"] .site-header {
  background-color: var(--color-white);
}

.site-header__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-3);
  height: var(--header-height);
  min-width: 0;
}

.site-header__mobile-tools {
  display: none;
  align-items: center;
  justify-self: end;
  gap: 0.15rem;
}

.mobile-header-actions {
  display: none;
  align-items: center;
  gap: 0.1rem;
}

.mobile-header-actions__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-text-primary);
  text-decoration: none;
  cursor: pointer;
}

.mobile-header-actions__btn:hover,
.mobile-header-actions__btn:focus-visible {
  background: var(--color-hover-surface);
  color: var(--color-text-primary);
  text-decoration: none;
}

.mobile-header-actions__btn:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

.mobile-menu__section-label {
  margin: var(--space-5) 0 var(--space-2);
  padding: 0;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}

.mobile-menu__section-label:first-child {
  margin-top: 0;
}

@media (min-width: 1024px) {
  .site-header__inner {
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: var(--space-6);
  }
}

.site-logo {
  justify-self: start;
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
}

.nav-primary,
.nav-utility-wrap,
.nav-desktop-wrap {
  display: none !important;
}

.nav-primary {
  justify-self: center;
  justify-content: center;
  min-width: 0;
  white-space: nowrap;
}

.nav-utility-wrap {
  justify-self: end;
  flex: 0 0 auto;
  white-space: nowrap;
}

/* Platform header still uses a clustered wrap */
.nav-desktop-wrap {
  align-items: center;
  gap: var(--space-6);
  flex: 1;
  justify-content: flex-end;
  min-width: 0;
  white-space: nowrap;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  margin: 0;
  padding: 0;
  list-style: none;
  flex: 0 0 auto;
}

.nav-utility {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
  flex: 0 0 auto;
}

/* Brand logo (R2 /media) */
.brand-logo,
.site-logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
  line-height: 0;
}

.brand-logo:hover,
.brand-logo:visited,
.site-logo:hover,
.site-logo:visited {
  text-decoration: none;
}

.brand-logo__img {
  display: block;
  width: auto;
  height: 38px;
  max-height: 38px;
  max-width: min(185px, 52vw);
  object-fit: contain;
  object-position: left center;
  border-radius: 0;
}

.brand-logo__text {
  display: inline-flex;
  align-items: center;
  height: 38px;
  max-width: min(185px, 52vw);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.04em;
  color: var(--color-text-primary);
  line-height: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.brand-logo--sm .brand-logo__img {
  height: 32px;
  max-height: 32px;
  max-width: 155px;
}

.brand-logo--md .brand-logo__img,
.site-logo .brand-logo__img {
  height: 38px;
  max-height: 38px;
  max-width: min(185px, 52vw);
}

.brand-logo--lg .brand-logo__img {
  height: 42px;
  max-height: 42px;
  max-width: min(200px, 55vw);
}

@media (min-width: 768px) {
  .brand-logo__img {
    height: 42px;
    max-height: 42px;
    max-width: min(250px, 58vw);
  }

  /* Keep header logo at 38px until desktop nav appears — avoids cramped 64px bar */
  .brand-logo--md .brand-logo__img,
  .site-logo .brand-logo__img {
    height: 42px;
    max-height: 42px;
    max-width: 240px;
  }

  .brand-logo--lg .brand-logo__img {
    height: 48px;
    max-height: 48px;
    max-width: 280px;
  }

  .brand-logo__text {
    height: 42px;
    max-width: 240px;
    font-size: 1.3125rem;
  }
}

@media (min-width: 1024px) {
  .brand-logo--md .brand-logo__img,
  .site-logo .brand-logo__img {
    height: 40px;
    max-height: 40px;
    max-width: 220px;
  }

  .brand-logo__text {
    height: 40px;
    max-width: 220px;
    font-size: 1.3125rem;
  }
}

.nav-desktop {
  gap: var(--space-6);
}

.nav-utility {
  gap: var(--space-4);
  padding: 0 0 0 var(--space-4);
  border-left: 1px solid var(--color-border-subtle);
}

.nav-desktop-wrap .nav-utility {
  padding-left: var(--space-6);
}

.nav-desktop__link,
.nav-utility__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) 0;
  font-size: var(--text-small);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  text-decoration: none;
  white-space: nowrap;
  transition: opacity var(--duration-fast) var(--ease-standard);
}

.nav-utility__link {
  color: var(--color-text-secondary);
}

.nav-desktop__link:hover,
.nav-desktop__link:visited,
.nav-utility__link:hover,
.nav-utility__link:visited {
  color: var(--color-text-primary);
  opacity: 0.7;
  text-decoration: none;
}

.nav-desktop__link[aria-current="page"],
.nav-utility__link[aria-current="page"] {
  opacity: 1;
  color: var(--color-text-primary);
  box-shadow: inset 0 -1px 0 var(--color-text-primary);
}

.nav-desktop__item--has-mega {
  position: relative;
}

.nav-desktop__trigger {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) 0;
  border: 0;
  background: transparent;
  font: inherit;
  font-size: var(--text-small);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  cursor: pointer;
}

/* Mega menu shell — panel content wired later */
.mega-menu {
  position: absolute;
  top: calc(100% + var(--space-4));
  left: 50%;
  z-index: var(--z-header);
  display: none;
  width: min(100vw - (2 * var(--gutter)), var(--container-xl));
  padding: var(--space-8) 0;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transform: translate(-50%, -4px);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity var(--duration-normal) var(--ease-standard),
    transform var(--duration-normal) var(--ease-standard);
}

.mega-menu.is-open,
.nav-desktop__item--has-mega:focus-within .mega-menu,
.nav-desktop__item--has-mega[data-mega-open="true"] .mega-menu {
  display: block;
  opacity: 1;
  transform: translate(-50%, 0);
  pointer-events: auto;
}

.mega-menu__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-8);
  width: min(100% - (2 * var(--gutter)), var(--container-xl));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-text-primary);
  cursor: pointer;
}

.nav-toggle:hover {
  background: var(--color-hover-surface);
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

.nav-toggle[aria-expanded="true"] .icon-menu {
  display: none;
}

.nav-toggle[aria-expanded="false"] .icon-close,
.nav-toggle:not([aria-expanded="true"]) .icon-close {
  display: none;
}

.nav-toggle[aria-expanded="true"] .icon-close {
  display: block;
}

.mobile-menu {
  position: fixed;
  top: var(--header-height);
  right: 0;
  bottom: 0;
  left: 0;
  z-index: var(--z-mobile-menu);
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 100vw;
  background: var(--color-bg-canvas);
  transform: translate3d(100%, 0, 0);
  visibility: hidden;
  pointer-events: none;
  /* Keep closed drawer out of scrollable overflow calculations */
  overflow: hidden;
  transition:
    transform var(--duration-normal) var(--ease-emphasized),
    visibility var(--duration-normal) var(--ease-emphasized);
}

.mobile-menu:not(.is-open) {
  /* Clip transformed panel so it cannot widen the document */
  clip-path: inset(0 0 0 100%);
}

.mobile-menu.is-open {
  transform: translate3d(0, 0, 0);
  visibility: visible;
  pointer-events: auto;
  clip-path: none;
}

.mobile-menu__panel {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-6) var(--gutter) var(--space-10);
}

.mobile-menu__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.mobile-menu__link {
  display: block;
  padding: var(--space-4) 0;
  font-size: var(--text-body-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border-subtle);
}

.mobile-menu__link:hover,
.mobile-menu__link:visited {
  color: var(--color-text-primary);
  text-decoration: none;
}

.mobile-menu__link[aria-current="page"] {
  color: var(--color-text-primary);
  box-shadow: inset 3px 0 0 var(--color-text-primary);
  padding-left: var(--space-3);
}

.mobile-menu__link:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

body.mobile-menu-open {
  overflow: hidden;
}

@media (max-width: 1023px) {
  .site-header {
    height: auto;
    min-height: var(--header-height);
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .site-header__inner {
    min-height: var(--header-height);
    padding-block: 0.2rem;
    gap: var(--space-2);
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .site-header__mobile-tools {
    display: inline-flex;
  }

  .mobile-header-actions {
    display: inline-flex;
  }

  .site-logo {
    max-width: min(140px, 46vw);
  }

  .site-logo .brand-logo__img,
  .site-logo img,
  .brand-logo img {
    max-height: 34px;
    width: auto;
  }

  .nav-toggle {
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    margin-inline-end: -0.2rem;
  }

  .mobile-menu {
    top: 0;
    padding-top: calc(env(safe-area-inset-top, 0px) + var(--header-height) + 3.25rem);
    z-index: calc(var(--z-mobile-menu) + 5);
    background: var(--color-bg-canvas);
  }

  body.mobile-menu-open .site-chrome {
    z-index: calc(var(--z-mobile-menu) + 6);
  }

  .mobile-menu__panel {
    padding: var(--space-4) var(--gutter) calc(var(--space-12) + env(safe-area-inset-bottom, 0px));
  }

  .mobile-menu__link {
    padding: 0.9rem 0;
    font-size: 1.0625rem;
    letter-spacing: -0.015em;
    min-height: 48px;
    display: flex;
    align-items: center;
    border-bottom-color: rgba(0, 0, 0, 0.06);
  }

  .mobile-menu__link--utility {
    font-size: 1rem;
    font-weight: var(--font-weight-regular, 400);
    color: var(--color-text-secondary);
  }

  .mobile-menu__link[aria-current="page"] {
    padding-left: var(--space-3);
  }
}

@media (min-width: 1024px) {
  .site-header__inner {
    grid-template-columns: auto 1fr auto;
    gap: var(--space-4);
  }

  .nav-primary,
  .nav-utility-wrap,
  .nav-desktop-wrap {
    display: flex !important;
  }

  .site-header__mobile-tools,
  .mobile-header-actions,
  .nav-toggle,
  .mobile-menu {
    display: none !important;
  }
}

/* Header Country/Region selector */
.nav-utility__region {
  display: flex;
  align-items: center;
  position: relative;
  z-index: 5;
  margin-right: var(--space-1);
  padding-right: var(--space-3);
  border-right: 1px solid var(--color-border-subtle);
}

.mobile-header-actions__region {
  display: flex;
  align-items: center;
}

.country-selector {
  position: relative;
}

.country-selector__trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  min-height: 40px;
  margin: 0;
  padding: 0.25rem 0.4rem;
  border: 0;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-text-secondary);
  font: inherit;
  font-size: var(--text-small);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
}

.country-selector__trigger:hover,
.country-selector__trigger:focus-visible {
  background: var(--color-hover-surface);
  color: var(--color-text-primary);
}

.country-selector__trigger:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

.country-selector__trigger-flag {
  font-size: 1.05rem;
  line-height: 1;
}

.country-selector__trigger-chevron {
  display: inline-flex;
  align-items: center;
  color: var(--color-text-tertiary);
  transition: transform var(--duration-fast, 150ms) var(--ease-standard, ease);
}

.country-selector__trigger-chevron .icon {
  width: 0.8rem;
  height: 0.8rem;
}

.country-selector__trigger[aria-expanded="true"] .country-selector__trigger-chevron {
  transform: rotate(180deg);
}

.country-selector__panel {
  position: absolute;
  top: calc(100% + 0.35rem);
  right: 0;
  z-index: 40;
  width: min(18.5rem, calc(100vw - 1.5rem));
  padding: 0.75rem;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  background: var(--color-bg-primary, #fff);
  box-shadow: var(--shadow-md, 0 8px 24px rgba(0, 0, 0, 0.12));
}

.country-selector__heading {
  margin: 0 0 0.5rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}

.country-selector__list {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  max-height: 14rem;
  overflow: auto;
}

.country-selector__option {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  width: 100%;
  margin: 0;
  padding: 0.45rem 0.5rem;
  border: 0;
  border-radius: var(--radius-sm, 6px);
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.country-selector__option:hover,
.country-selector__option:focus-visible {
  background: var(--color-hover-surface);
}

.country-selector__option.is-selected {
  background: var(--color-hover-surface);
  font-weight: 600;
}

.country-selector__flag {
  width: 1.25rem;
  text-align: center;
  font-size: 1rem;
  line-height: 1;
}

.country-selector__option-text {
  display: flex;
  flex: 1;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  min-width: 0;
}

.country-selector__option-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.country-selector__option-meta {
  flex-shrink: 0;
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
}

.country-selector__lang {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-top: 0.65rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--color-border-subtle);
}

.country-selector__lang-label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}

.country-selector__lang select {
  min-height: 2.25rem;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-sm, 6px);
  background: #fff;
  font: inherit;
}

.country-selector__reset {
  display: block;
  width: 100%;
  margin: 0.5rem 0 0;
  padding: 0.4rem 0.5rem;
  border: 0;
  border-radius: var(--radius-sm, 6px);
  background: transparent;
  color: var(--color-text-secondary);
  font: inherit;
  font-size: 0.8125rem;
  text-align: left;
  text-decoration: underline;
  cursor: pointer;
}

.country-selector__reset[hidden] {
  display: none;
}

.mobile-header-actions .country-selector__panel {
  /* Mobile: anchor to the viewport so the dropdown never runs past the
     right edge on small screens. Safe because the mobile header has no
     backdrop-filter (removed at <=1023px), so `fixed` is viewport-relative
     and not clipped by a containing block. */
  position: fixed;
  top: calc(var(--header-height) + 0.35rem);
  right: 0.75rem;
  left: auto;
  width: auto;
  min-width: min(18.5rem, calc(100vw - 1.5rem));
  max-width: calc(100vw - 1.5rem);
}