/* ========================================
   BMW USA — Global Navigation
   Source: BUILD_PLAN §3.1, §11 HTML Template
   ======================================== */

/* ===== Header ===== */
.cmp-globalnavigation {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height-desktop);
  z-index: var(--nav-z-index);
  transition: background var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
  border-bottom: 1px solid transparent;
}

.cmp-globalnavigation--transparent {
  background: transparent;
}

.cmp-globalnavigation--solid {
  background: var(--bmw-white);
  border-bottom-color: var(--bmw-border-grey);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.cmp-globalnavigation--hidden {
  transform: translateY(-100%);
}

.cmp-globalnavigation__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Logo ===== */
.cmp-globalnavigation__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  padding-right: 24px;
  height: 100%;
}

.cmp-globalnavigation__logo img {
  width: 53px;
  height: 53px;
  display: block;
}

.cmp-globalnavigation__logo-image--white {
  display: block;
}

.cmp-globalnavigation__logo-image--grey {
  display: none;
}

/* On transparent header, show white logo */
.cmp-globalnavigation--transparent .cmp-globalnavigation__logo-image--white {
  display: block;
}

.cmp-globalnavigation--transparent .cmp-globalnavigation__logo-image--grey {
  display: none;
}

/* On solid header, show grey logo */
.cmp-globalnavigation--solid .cmp-globalnavigation__logo-image--white {
  display: none;
}

.cmp-globalnavigation--solid .cmp-globalnavigation__logo-image--grey {
  display: block;
}

/* ===== Primary Navigation ===== */
.cmp-globalnavigation__primary {
  display: flex;
  align-items: center;
  height: 100%;
  flex: 1;
}

.cmp-globalnavigation__list {
  display: flex;
  align-items: center;
  height: 100%;
  margin: 0;
  padding: 0;
  list-style: none;
}

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

.cmp-globalnavigation__item > button,
.cmp-globalnavigation__item > a {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 20px;
  font-size: var(--body-default-size);
  font-weight: 700;
  color: var(--bmw-white);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-primary);
  white-space: nowrap;
  transition: color var(--transition-fast);
  position: relative;
  letter-spacing: 0.01em;
}

.cmp-globalnavigation--solid .cmp-globalnavigation__item > button,
.cmp-globalnavigation--solid .cmp-globalnavigation__item > a {
  color: var(--bmw-dark-text);
}

/* Active indicator */
.cmp-globalnavigation__item > button::after,
.cmp-globalnavigation__item > a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 20px;
  right: 20px;
  height: 3px;
  background: var(--bmw-blue);
  transform: scaleX(0);
  transition: transform var(--transition-fast);
}

.cmp-globalnavigation__item > button:hover::after,
.cmp-globalnavigation__item > a:hover::after,
.cmp-globalnavigation__item--active > button::after,
.cmp-globalnavigation__item--active > a::after {
  transform: scaleX(1);
}

.cmp-globalnavigation__item > button:hover,
.cmp-globalnavigation__item > a:hover {
  color: var(--bmw-blue);
}

.cmp-globalnavigation--transparent .cmp-globalnavigation__item > button:hover,
.cmp-globalnavigation--transparent .cmp-globalnavigation__item > a:hover {
  color: var(--bmw-blue);
}

.cmp-globalnavigation--solid .cmp-globalnavigation__item > button:hover,
.cmp-globalnavigation--solid .cmp-globalnavigation__item > a:hover {
  color: var(--bmw-blue);
}

/* ===== Secondary Navigation ===== */
.cmp-globalnavigation__secondary {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.cmp-globalnavigation__secondary menu {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.cmp-globalnavigation__secondary button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--bmw-white);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.cmp-globalnavigation--solid .cmp-globalnavigation__secondary button {
  color: var(--bmw-dark-text);
}

.cmp-globalnavigation__secondary button:hover {
  background: rgba(255, 255, 255, 0.1);
}

.cmp-globalnavigation--solid .cmp-globalnavigation__secondary button:hover {
  background: var(--bmw-bg-light-grey);
}

.cmp-globalnavigation__secondary button svg {
  width: 22px;
  height: 22px;
  display: block;
}

.cmp-globalnavigation__secondary button i[data-icon] {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
}

/* Hamburger (mobile only) */
.cmp-globalnavigation__item--tablet-down {
  display: none;
}

/* ===== Mega Menu Flyout ===== */
.cmp-globalnavigation__flyout {
  position: fixed;
  top: var(--nav-height-desktop);
  left: 0;
  right: 0;
  background: var(--bmw-white);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  z-index: calc(var(--nav-z-index) - 1);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  max-height: calc(100vh - var(--nav-height-desktop));
  overflow-y: auto;
}

.cmp-globalnavigation__flyout--open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.cmp-globalnavigation__flyout-inner {
  display: grid;
  grid-template-columns: 3fr 1.2fr;
  gap: 40px;
  max-width: 1400px;
  margin: 0 auto;
  padding: 32px;
}

/* Flyout Overlay */
.cmp-globalnavigation__overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  z-index: calc(var(--nav-z-index) - 2);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.cmp-globalnavigation__overlay--open {
  opacity: 1;
  visibility: visible;
}

/* ===== Flyout Left: Navigation List ===== */
.cmp-multilevelflyout {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
}

.cmp-multilevelflyout__group h4 {
  font-size: var(--eyebrow-1-size);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--eyebrow-1-ls);
  color: var(--bmw-light-text);
  margin-bottom: 12px;
}

.cmp-multilevelflyout__group a {
  display: block;
  padding: 8px 0;
  font-size: var(--body-default-size);
  font-weight: 500;
  color: var(--bmw-dark-text);
  transition: color var(--transition-fast);
}

.cmp-multilevelflyout__group a:hover {
  color: var(--bmw-blue);
}

/* ===== Flyout Right: Promo Card ===== */
.cmp-globalnavigation__promo {
  background: var(--bmw-bg-light-grey);
  border-radius: 8px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.cmp-globalnavigation__promo-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 16px;
  background: var(--bmw-border-grey);
}

.cmp-globalnavigation__promo-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cmp-globalnavigation__promo h3 {
  font-size: var(--headline-5-size);
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--bmw-dark-text);
}

.cmp-globalnavigation__promo p {
  font-size: var(--body-default-size);
  color: var(--bmw-medium-text);
  margin-bottom: 16px;
  line-height: 1.5;
}

.cmp-globalnavigation__promo .cmp-button {
  align-self: flex-start;
}

/* ===== Mobile Menu (Full-screen overlay, ≤890px) ===== */
@media (max-width: 890px) {
  .cmp-globalnavigation {
    height: var(--nav-height-mobile);
  }

  .cmp-globalnavigation__primary {
    display: none;
  }

  .cmp-globalnavigation__item--tablet-down {
    display: flex;
  }

  .cmp-globalnavigation__container {
    padding: 0 16px;
  }

  .cmp-globalnavigation__logo img {
    width: 44px;
    height: 44px;
  }

  /* Mobile menu panel */
  .cmp-globalnavigation__mobile-menu {
    position: fixed;
    top: var(--nav-height-mobile);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bmw-white);
    z-index: calc(var(--nav-z-index) + 10);
    padding: 24px;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
  }

  .cmp-globalnavigation__mobile-menu--open {
    transform: translateX(0);
  }

  .cmp-globalnavigation__mobile-item {
    display: block;
    padding: 16px 0;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--bmw-dark-text);
    border-bottom: 1px solid var(--bmw-border-grey);
    cursor: pointer;
    background: none;
    border-left: none;
    border-right: none;
    border-top: none;
    width: 100%;
    text-align: left;
    font-family: var(--font-primary);
  }

  .cmp-globalnavigation__mobile-back {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
    font-size: var(--body-default-size);
    font-weight: 600;
    color: var(--bmw-medium-text);
    cursor: pointer;
    background: none;
    border: none;
    font-family: var(--font-primary);
    margin-bottom: 8px;
  }

  .cmp-globalnavigation__mobile-back svg {
    width: 20px;
    height: 20px;
  }

  /* Mobile sub-menu (nested level) */
  .cmp-globalnavigation__mobile-sub {
    display: none;
  }

  .cmp-globalnavigation__mobile-sub--open {
    display: block;
  }

  .cmp-globalnavigation__mobile-sub-link {
    display: block;
    padding: 12px 16px;
    font-size: var(--body-default-size);
    color: var(--bmw-dark-text);
    transition: background var(--transition-fast);
  }

  .cmp-globalnavigation__mobile-sub-link:hover {
    background: var(--bmw-bg-light-grey);
  }
}

/* ===== Desktop adjustments ===== */
@media (min-width: 891px) {
  .cmp-globalnavigation__mobile-menu {
    display: none;
  }

  .cmp-globalnavigation__hamburger {
    display: none;
  }
}

/* ===== Hamburger icon ===== */
.cmp-globalnavigation__hamburger {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  gap: 5px;
  padding: 10px;
  cursor: pointer;
  background: none;
  border: none;
}

.cmp-globalnavigation__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--bmw-white);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.cmp-globalnavigation--solid .cmp-globalnavigation__hamburger span {
  background: var(--bmw-dark-text);
}

.cmp-globalnavigation__hamburger--active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.cmp-globalnavigation__hamburger--active span:nth-child(2) {
  opacity: 0;
}

.cmp-globalnavigation__hamburger--active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}