/*
 * LGK Header — header.css
 * Prefix: lgk-header, lgk-nav, lgk-mobile-menu, lgk-menu-panel
 */

/* ─── Header wrapper ────────────────────────────────────────────────────────── */
.lgk-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: #FFFFFF;
  border-bottom: 2px solid var(--lgk-blue-100);
  width: 100%;
}

.lgk-header__inner {
  display: flex;
  align-items: center;
  height: 80px;
  padding-left: 20px !important;
  padding-right: 20px !important;
}

/* Mobile: logo đẩy hamburger sát phải */
@media (max-width: 1024px) {
  .lgk-header__logo {
    margin-right: auto !important;
  }
}

/* ─── Logo ──────────────────────────────────────────────────────────────────── */
.lgk-header__logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  text-decoration: none;
}

.lgk-header__logo img {
  height: 88px;
  width: auto;
  display: block;
}

.lgk-header__logo-text {
  font-family: var(--lgk-font);
  font-weight: var(--lgk-weight-black);
  font-size: var(--lgk-size-lg);
  color: var(--lgk-blue-900);
}

/* ─── Desktop Nav ───────────────────────────────────────────────────────────── */
.lgk-header__nav {
  flex: 1;
  display: flex;
  justify-content: flex-end;
  margin: 0 var(--lgk-space-6) 0 0;
}

.lgk-nav {
  display: flex;
  align-items: center;
  gap: var(--lgk-space-1);
  list-style: none;
  margin: 0;
  padding: 0;
}

.lgk-nav__item {
  position: relative;
  list-style: none;
  margin-bottom: 0 !important;
}

.lgk-nav__link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: var(--lgk-space-2) var(--lgk-space-4);
  font-family: var(--lgk-font);
  font-weight: var(--lgk-weight-bold);
  font-size: var(--lgk-size-base);
  color: #3FB7FE;
  text-decoration: none;
  border-radius: var(--lgk-radius-sm);
  transition: background-color var(--lgk-transition), color var(--lgk-transition);
  white-space: nowrap;
}

.lgk-nav__link:hover,
.lgk-nav__item--has-children:hover > .lgk-nav__link {
  color: #233CB2;
  background-color: rgba(63, 183, 254, 0.08);
  text-decoration: none;
}

/* Active page */
.lgk-nav__item.current-menu-item > .lgk-nav__link,
.lgk-nav__item.current-menu-ancestor > .lgk-nav__link,
.lgk-nav__item.current-page-ancestor > .lgk-nav__link {
  color: #233CB2;
}

.lgk-nav__arrow {
  flex-shrink: 0;
  transition: transform var(--lgk-transition);
}

.lgk-nav__item--has-children:hover > .lgk-nav__link .lgk-nav__arrow {
  transform: rotate(180deg);
}

/* Dropdown */
.lgk-nav__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 220px;
  background-color: var(--lgk-white);
  border: 1px solid var(--lgk-blue-100);
  border-radius: var(--lgk-radius-md);
  box-shadow: var(--lgk-shadow-md);
  list-style: none;
  margin: 0;
  padding: var(--lgk-space-2) 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--lgk-transition), visibility var(--lgk-transition), transform var(--lgk-transition);
  z-index: 100;
}

.lgk-nav__item--has-children:hover > .lgk-nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lgk-nav__dropdown .lgk-nav__item {
  display: block;
}

.lgk-nav__dropdown .lgk-nav__link {
  font-weight: var(--lgk-weight-semi);
  font-size: var(--lgk-size-sm);
  padding: var(--lgk-space-2) var(--lgk-space-5);
  border-radius: 0;
}

/* Level 2 dropdown */
.lgk-nav__dropdown .lgk-nav__dropdown {
  top: 0;
  left: 100%;
  margin-top: 0;
}

/* ─── CTA Button ────────────────────────────────────────────────────────────── */
.lgk-header__cta {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--lgk-space-3) var(--lgk-space-6);
  background-color: var(--lgk-blue-500);
  color: var(--lgk-white);
  font-family: var(--lgk-font);
  font-weight: var(--lgk-weight-black);
  font-size: var(--lgk-size-sm);
  letter-spacing: 0.04em;
  border-radius: var(--lgk-radius-full);
  text-decoration: none;
  transition: background-color var(--lgk-transition), transform var(--lgk-transition);
  white-space: nowrap;
}

.lgk-header__cta:hover {
  background-color: var(--lgk-blue-300);
  color: var(--lgk-white);
  text-decoration: none;
  transform: translateY(-1px);
}

.lgk-header__cta--full {
  width: 100%;
}

/* ─── Hamburger ─────────────────────────────────────────────────────────────── */
.lgk-header__hamburger {
  display: none;
  flex-direction: column !important;
  justify-content: center !important;
  align-items: center !important;
  gap: 5px !important;
  width: 40px !important;
  height: 40px !important;
  background: none !important;
  background-color: transparent !important;
  border: none !important;
  box-shadow: none !important;
  cursor: pointer !important;
  padding: 0 !important;
  margin: 0 !important;
  flex-shrink: 0;
  border-radius: 0 !important;
  line-height: 1 !important;
  text-transform: none !important;
  font-size: inherit !important;
  color: inherit !important;
}

.lgk-header__hamburger span {
  display: block;
  width: 24px;
  height: 2.5px;
  background-color: var(--lgk-blue-900);
  border-radius: 2px;
  transition: transform var(--lgk-transition), opacity var(--lgk-transition);
}

.lgk-header__hamburger.is-active span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.lgk-header__hamburger.is-active span:nth-child(2) { opacity: 0; }
.lgk-header__hamburger.is-active span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ─── Mobile Menu ───────────────────────────────────────────────────────────── */
.lgk-mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 320px;
  max-width: 100vw;
  background-color: var(--lgk-white);
  z-index: 1100;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  overflow: hidden;
}

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

.lgk-mobile-menu__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--lgk-space-4) var(--lgk-space-5);
  border-bottom: 1px solid var(--lgk-blue-100);
  flex-shrink: 0;
}

.lgk-mobile-menu__logo img {
  height: 40px;
  width: auto;
}

.lgk-mobile-menu__close {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 36px !important;
  height: 36px !important;
  background: none !important;
  background-color: transparent !important;
  border: none !important;
  box-shadow: none !important;
  cursor: pointer !important;
  color: var(--lgk-blue-900) !important;
  border-radius: var(--lgk-radius-sm) !important;
  padding: 0 !important;
  margin: 0 !important;
  transition: background-color var(--lgk-transition);
}

.lgk-mobile-menu__close:hover {
  background-color: rgba(35, 60, 178, 0.06);
}

.lgk-mobile-menu__panels {
  flex: 1;
  position: relative;
  overflow: hidden;
}

.lgk-mobile-menu__footer {
  padding: var(--lgk-space-4) var(--lgk-space-5);
  border-top: 1px solid var(--lgk-blue-100);
  flex-shrink: 0;
}

/* ─── Menu Panels (drill-down) ──────────────────────────────────────────────── */
.lgk-menu-panel {
  position: absolute;
  inset: 0;
  background-color: var(--lgk-white);
  transform: translateX(100%);
  transition: transform 0.28s ease;
  overflow-y: auto;
  padding: var(--lgk-space-3) 0;
}

.lgk-menu-panel--active {
  transform: translateX(0);
}

.lgk-menu-panel--out {
  transform: translateX(-30%);
}

.lgk-menu-panel__back {
  display: flex !important;
  align-items: center !important;
  gap: var(--lgk-space-2) !important;
  width: 100% !important;
  padding: var(--lgk-space-3) var(--lgk-space-5) !important;
  background: none !important;
  background-color: transparent !important;
  border: none !important;
  border-bottom: 1px solid var(--lgk-blue-100) !important;
  box-shadow: none !important;
  cursor: pointer !important;
  font-family: var(--lgk-font) !important;
  font-weight: var(--lgk-weight-bold) !important;
  font-size: var(--lgk-size-base) !important;
  color: var(--lgk-blue-900) !important;
  margin-bottom: var(--lgk-space-2) !important;
  border-radius: 0 !important;
  text-transform: none !important;
  letter-spacing: normal !important;
}

.lgk-menu-panel__back:hover {
  background-color: rgba(35, 60, 178, 0.04);
}

.lgk-menu-panel__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.lgk-menu-panel__item {
  border-bottom: 1px solid rgba(187, 236, 253, 0.5);
}

.lgk-menu-panel__link {
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  width: 100% !important;
  padding: var(--lgk-space-3) var(--lgk-space-5) !important;
  font-family: var(--lgk-font) !important;
  font-weight: var(--lgk-weight-semi) !important;
  font-size: var(--lgk-size-base) !important;
  color: var(--lgk-blue-900) !important;
  text-decoration: none !important;
  background: none !important;
  background-color: transparent !important;
  border: none !important;
  box-shadow: none !important;
  cursor: pointer !important;
  text-align: left !important;
  border-radius: 0 !important;
  text-transform: none !important;
  letter-spacing: normal !important;
  line-height: var(--lgk-leading-normal) !important;
  transition: background-color var(--lgk-transition);
}

.lgk-menu-panel__link:hover {
  background-color: rgba(63, 183, 254, 0.08);
  color: var(--lgk-blue-500);
  text-decoration: none;
}

/* ─── Sticky Contact Button ─────────────────────────────────────────────────── */
.lgk-sticky-contact {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
  background: #233CB2;
  color: #fff;
  width: 52px;
  height: 52px;
  border-radius: 12px 0 0 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: -2px 4px 16px rgba(35,60,178,0.25);
  transition: background 0.2s ease, width 0.2s ease;
  text-decoration: none;
}

.lgk-sticky-contact__arrow {
  flex-shrink: 0;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.lgk-sticky-contact__label {
  width: 0;
  opacity: 0;
  overflow: hidden;
  white-space: nowrap;
  font-family: var(--lgk-font);
  font-weight: var(--lgk-weight-black);
  font-size: var(--lgk-size-sm);
  letter-spacing: 0.04em;
  transition: width 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s ease 0.05s;
}

.lgk-sticky-contact:hover {
  background: #3FB7FE;
  width: auto;
  padding: 0 16px;
  gap: 8px;
  text-decoration: none;
  color: #fff;
}

.lgk-sticky-contact:hover .lgk-sticky-contact__label {
  width: 50px;
  opacity: 1;
}

.lgk-sticky-contact:hover .lgk-sticky-contact__arrow {
  transform: rotate(180deg);
}

.lgk-sticky-contact svg {
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .lgk-sticky-contact {
    width: 44px;
    height: 44px;
  }
}

/* ─── Backdrop ──────────────────────────────────────────────────────────────── */
.lgk-menu-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(35, 60, 178, 0.3);
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  backdrop-filter: blur(2px);
}

.lgk-menu-backdrop.is-visible {
  opacity: 1;
  visibility: visible;
}

/* ─── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .lgk-header__nav,
  .lgk-header__cta {
    display: none !important;
  }

  .lgk-header__hamburger {
    display: flex !important;
    margin-left: auto !important;
  }
}

@media (min-width: 1025px) {
  .lgk-header__hamburger {
    display: none !important;
  }
}