/**
 * ANREXHUB Corporate Website
 * header.css - Top Bar, Main Navigation, Desktop Dropdowns, Sticky Header & Mobile Drawer
 */

/* ==========================================================================
   1. SITE HEADER WRAPPER & STICKY BEHAVIOR
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--color-white);
  transition: transform var(--transition-fast);
}

/* ==========================================================================
   2. TOP BAR
   ========================================================================== */
.top-bar {
  background-color: var(--color-navy);
  color: var(--color-white);
  padding: 8px 0;
  font-size: 0.85rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.top-bar-contact {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.top-bar-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #D1D5DB;
}

.top-bar-item i {
  color: var(--color-blue);
  font-size: 0.9rem;
}

.top-bar a {
  color: #E5E7EB;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.top-bar a:hover {
  color: var(--color-blue);
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.top-bar-social {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
}

.top-bar-social a {
  color: #D1D5DB;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  transition: all var(--transition-fast);
}

.top-bar-social a:hover {
  color: var(--color-white);
  background-color: var(--color-blue);
  transform: translateY(-2px);
}

.top-bar-badge {
  background: rgba(22, 119, 255, 0.2);
  border: 1px solid rgba(22, 119, 255, 0.4);
  color: #85B8FF !important;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.4px;
}

.top-bar-wa {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background-color: #25D366;
  color: #FFFFFF !important;
  padding: 5px 15px;
  border-radius: var(--radius-pill);
  font-size: 0.82rem;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(37, 211, 102, 0.25);
  transition: all var(--transition-fast);
}

.top-bar-wa:hover {
  background-color: #20BA5A;
  color: #FFFFFF !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.35);
}

.top-bar-wa i {
  font-size: 0.95rem;
}

/* Specific styling when top-bar is positioned below hero slider on home page */
.top-bar.home-top-bar {
  background: linear-gradient(90deg, #0A1C2E 0%, #102A43 50%, #0A1C2E 100%);
  padding: 12px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(22, 119, 255, 0.25);
  box-shadow: 0 6px 20px rgba(16, 42, 67, 0.18);
  position: relative;
  z-index: 5;
}

.top-bar.home-top-bar .top-bar-item {
  font-size: 0.9rem;
}

.top-bar.home-top-bar .top-bar-social a {
  width: 28px;
  height: 28px;
  font-size: 0.85rem;
}

.top-bar.home-top-bar .top-bar-wa {
  padding: 6px 16px;
  font-size: 0.85rem;
}

/* ==========================================================================
   3. MAIN NAVIGATION BAR
   ========================================================================== */
.main-nav {
  background-color: var(--color-white);
  padding: 15px 0;
  position: relative;
  transition: padding var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-base);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.main-nav.scrolled {
  padding: 10px 0;
  box-shadow: 0 4px 20px rgba(16, 42, 67, 0.1);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ==========================================================================
   4. BRAND LOGO
   ========================================================================== */
.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  line-height: 1;
}

.nav-logo-img {
  height: 44px;
  max-height: 48px;
  width: auto;
  object-fit: contain;
  display: block;
  transition: transform var(--transition-fast, 0.2s ease);
}

.nav-logo:hover .nav-logo-img {
  transform: scale(1.02);
}

.mobile-logo-img {
  height: 36px;
  max-height: 40px;
}

/* ==========================================================================
   5. DESKTOP NAVIGATION MENU
   ========================================================================== */
.nav-menu-wrapper {
  display: none; /* Mobile first: hidden, shown on desktop */
  align-items: center;
  gap: 20px;
}

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

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  color: #334155;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
}

.nav-link i.fa-chevron-down {
  font-size: 0.75rem;
  transition: transform var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-blue);
  background-color: var(--color-bg-light);
}

.nav-link.active {
  color: var(--color-blue);
  font-weight: 600;
  border-bottom: 2px solid var(--color-blue);
  border-radius: 0;
}

/* ==========================================================================
   6. DESKTOP DROPDOWN MENUS
   ========================================================================== */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(16, 42, 67, 0.12);
  border: 1px solid var(--color-border);
  padding: 8px 0;
  margin: 0;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  pointer-events: none;
  z-index: 1001;
}

.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu,
.dropdown.active .dropdown-menu,
.dropdown.open .dropdown-menu,
.dropdown.is-open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.dropdown:hover .nav-link i.fa-chevron-down,
.dropdown.active .nav-link i.fa-chevron-down,
.dropdown.open .nav-link i.fa-chevron-down,
.dropdown.is-open .nav-link i.fa-chevron-down {
  transform: rotate(180deg);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: #334155;
  font-size: 0.92rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.dropdown-item i {
  color: var(--color-blue);
  width: 16px;
  font-size: 0.9rem;
}

.dropdown-item:hover {
  background-color: var(--color-bg-light);
  color: var(--color-blue);
  padding-left: 24px;
}

.dropdown-divider {
  height: 1px;
  background-color: var(--color-border);
  margin: 6px 0;
}

/* ==========================================================================
   7. NAVIGATION ACTIONS (LOGIN BUTTON)
   ========================================================================== */
/* ==========================================================================
   7. NAVIGATION ACTIONS (LOGIN BUTTON & HAMBURGER)
   ========================================================================== */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-login {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-orange);
  color: var(--color-white);
  padding: 9px 20px;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: 0.92rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 2px 8px rgba(255, 138, 38, 0.25);
  text-decoration: none;
  white-space: nowrap;
}

.btn-login:hover {
  background-color: var(--color-orange-hover);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(255, 138, 38, 0.4);
  transform: translateY(-1px);
}

/* ==========================================================================
   8. HAMBURGER ICON (MOBILE TRIGGER)
   ========================================================================== */
.hamburger {
  display: none; /* Hidden on desktop by default; shown on <= 991px */
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: #FFFFFF;
  border: 1.5px solid #E2E8F0;
  border-radius: var(--radius-md, 8px);
  cursor: pointer;
  padding: 0;
  transition: all var(--transition-fast, 0.2s ease);
  z-index: 1001;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.hamburger:hover {
  background-color: var(--color-bg-light, #F5F8FC);
  border-color: var(--color-blue, #1677FF);
}

.hamburger-box {
  position: relative;
  width: 20px;
  height: 14px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  pointer-events: none;
}

.hamburger-line {
  display: block;
  width: 100%;
  height: 2.2px;
  background-color: var(--color-navy, #102A43);
  border-radius: 2px;
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.2s ease,
              background-color 0.2s ease;
  transform-origin: center;
  pointer-events: none;
}

/* Animated active state (both .is-active and .active supported) */
.hamburger.is-active .hamburger-line.top,
.hamburger.active .hamburger-line.top,
.hamburger.is-active .hamburger-line:nth-child(1),
.hamburger.active .hamburger-line:nth-child(1) {
  transform: translateY(5.9px) rotate(45deg);
  background-color: var(--color-blue, #1677FF);
}

.hamburger.is-active .hamburger-line.middle,
.hamburger.active .hamburger-line.middle,
.hamburger.is-active .hamburger-line:nth-child(2),
.hamburger.active .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.is-active .hamburger-line.bottom,
.hamburger.active .hamburger-line.bottom,
.hamburger.is-active .hamburger-line:nth-child(3),
.hamburger.active .hamburger-line:nth-child(3) {
  transform: translateY(-5.9px) rotate(-45deg);
  background-color: var(--color-blue, #1677FF);
}

/* ==========================================================================
   9. MOBILE NAVIGATION DRAWER & BACKDROP
   ========================================================================== */
.mobile-menu {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  z-index: 10050;
  pointer-events: none;
  visibility: hidden;
  transition: visibility 0.3s ease;
  overflow: hidden;
}

.mobile-menu.is-open,
.mobile-menu.active {
  pointer-events: auto;
  visibility: visible;
}

/* Backdrop */
.mobile-menu-backdrop,
.mobile-nav-backdrop,
.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 28, 46, 0.68);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 1;
}

.mobile-menu.is-open .mobile-menu-backdrop,
.mobile-menu.active .mobile-menu-backdrop,
.mobile-menu.is-open .mobile-nav-backdrop,
.mobile-menu.active .mobile-nav-backdrop,
.nav-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

/* Drawer Content Panel */
.mobile-menu-content {
  position: absolute;
  top: 0;
  right: 0;
  width: 86%;
  max-width: 380px;
  height: 100%;
  background-color: #FFFFFF;
  box-shadow: -6px 0 30px rgba(0, 0, 0, 0.28);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  z-index: 2;
}

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

/* Drawer Header */
.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
  background-color: #FFFFFF;
  position: sticky;
  top: 0;
  z-index: 10;
}

.mobile-logo-img {
  height: 34px;
  max-height: 36px;
  width: auto;
}

.mobile-close,
.mobile-menu-close {
  background: transparent;
  border: none;
  font-size: 1.35rem;
  color: var(--color-navy);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.mobile-close:hover,
.mobile-menu-close:hover {
  color: #EF4444;
  background-color: #FEE2E2;
}

/* Drawer Body & Navigation Links */
.mobile-menu-body {
  display: flex;
  flex-direction: column;
  flex: 1 0 auto;
}

.mobile-nav-list {
  list-style: none;
  padding: 6px 0;
  margin: 0;
  flex: 1 0 auto;
}

.mobile-nav-item {
  width: 100%;
  border-bottom: 1px solid #F1F5F9;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 20px;
  color: var(--color-navy);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast), padding-left var(--transition-fast);
}

.mobile-nav-link i:first-child {
  color: var(--color-blue);
  width: 20px;
  text-align: center;
  font-size: 0.98rem;
  flex-shrink: 0;
}

.mobile-nav-link .nav-ext-icon {
  margin-left: auto;
  font-size: 0.78rem;
  color: #94A3B8;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--color-blue);
  background-color: var(--color-bg-light);
  padding-left: 24px;
}

/* Mobile Services Accordion */
.mobile-dropdown-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 20px;
  background: transparent;
  border: none;
  color: var(--color-navy);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: color var(--transition-fast), background-color var(--transition-fast);
  text-align: left;
}

.mobile-dropdown-toggle:hover {
  color: var(--color-blue);
  background-color: var(--color-bg-light);
}

.mobile-dropdown-label {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mobile-dropdown-label i {
  color: var(--color-blue);
  width: 20px;
  text-align: center;
  font-size: 0.98rem;
  flex-shrink: 0;
}

.mobile-arrow {
  font-size: 0.8rem;
  color: #64748B;
  transition: transform var(--transition-base);
}

.mobile-dropdown.is-expanded .mobile-arrow,
.mobile-nav-item.open .mobile-arrow {
  transform: rotate(180deg);
  color: var(--color-blue);
}

/* Submenu inside Drawer */
.mobile-submenu {
  list-style: none;
  padding: 0;
  margin: 0;
  background-color: #F8FAFC;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  border-top: 1px solid #EEF2F6;
}

.mobile-dropdown.is-expanded .mobile-submenu,
.mobile-nav-item.open > .mobile-submenu {
  max-height: 500px;
}

.mobile-sublink,
.mobile-submenu-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 20px 11px 26px;
  color: var(--color-text-secondary);
  text-decoration: none;
  border-bottom: 1px solid #EEF2F6;
  transition: all var(--transition-fast);
}

.mobile-sublink:hover,
.mobile-submenu-link:hover {
  background-color: #F1F5F9;
  color: var(--color-blue);
  padding-left: 30px;
}

.mobile-sublink i:first-child,
.mobile-submenu-link i:first-child {
  color: var(--color-blue);
  font-size: 0.95rem;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

.mobile-sublink div {
  display: flex;
  flex-direction: column;
  gap: 1px;
  flex: 1;
}

.mobile-sublink strong {
  font-size: 0.88rem;
  color: var(--color-navy);
}

.mobile-sublink small {
  font-size: 0.74rem;
  color: var(--color-text-muted);
}

.mobile-sublink .nav-ext-icon {
  font-size: 0.75rem;
  color: #94A3B8;
}

/* Mobile Actions in Drawer */
.mobile-menu-actions {
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-top: 1px solid var(--color-border);
  background-color: #FAFBFD;
}

.mobile-action-btn {
  width: 100%;
  justify-content: center;
  padding: 11px 20px;
  font-size: 0.95rem;
}

.mobile-wa-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: #25D366;
  color: #FFFFFF !important;
  padding: 11px 20px;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(37, 211, 102, 0.25);
  transition: all var(--transition-fast);
}

.mobile-wa-btn:hover {
  background-color: #20BA5A;
  color: #FFFFFF !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.35);
}

/* Mobile Drawer Contact Info */
.mobile-menu-contact {
  padding: 16px 20px 24px;
  border-top: 1px solid #EEF2F6;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background-color: #FFFFFF;
}

.mobile-contact-title {
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: #94A3B8;
}

.mobile-contact-line {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-navy);
  font-size: 0.88rem;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.mobile-contact-line:hover {
  color: var(--color-blue);
}

.mobile-contact-line i {
  color: var(--color-blue);
  font-size: 0.9rem;
  width: 18px;
  text-align: center;
}

.mobile-social-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
}

.mobile-social-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-bg-light);
  color: var(--color-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.mobile-social-icon:hover {
  background-color: var(--color-blue);
  color: #FFFFFF;
  transform: translateY(-2px);
}

/* Body lock when drawer open */
body.nav-drawer-open,
body.no-scroll {
  overflow: hidden !important;
  touch-action: none;
}

/* ==========================================================================
   10. RESPONSIVE BREAKPOINT SWITCH
   ========================================================================== */
/* Mobile / Tablet: <= 991px */
@media (max-width: 991px) {
  .nav-container {
    max-width: 100%;
    padding: 0 18px;
  }

  .nav-menu,
  .nav-menu-wrapper {
    display: none !important;
  }

  .hamburger {
    display: flex !important;
  }

  .nav-logo-img {
    height: 36px;
    max-height: 38px;
    max-width: 180px;
  }

  .nav-actions {
    gap: 10px;
  }

  .btn-login {
    padding: 7px 14px;
    font-size: 0.85rem;
    gap: 6px;
  }
}

/* Small Mobile: <= 480px */
@media (max-width: 480px) {
  .nav-container {
    padding: 0 12px;
    gap: 8px;
  }

  .nav-logo-img {
    height: 32px;
    max-height: 34px;
    max-width: 140px;
  }

  .nav-actions {
    gap: 8px;
  }

  .btn-login {
    padding: 6px 11px;
    font-size: 0.8rem;
    gap: 5px;
  }

  .hamburger {
    width: 38px;
    height: 38px;
  }

  .hamburger-box {
    width: 18px;
    height: 13px;
  }
}

/* Desktop: >= 992px */
@media (min-width: 992px) {
  .nav-container {
    max-width: var(--container-max-width, 1200px);
    margin: 0 auto;
    padding: 0 var(--container-padding, 20px);
  }

  .hamburger {
    display: none !important;
  }
  
  .mobile-menu,
  .mobile-nav-backdrop,
  .mobile-menu-backdrop,
  .nav-overlay {
    display: none !important;
  }
  
  .nav-menu-wrapper,
  .nav-menu {
    display: flex !important;
  }
  
  .nav-brand {
    gap: 15px;
  }
  
  .nav-logo {
    font-size: 1.7rem;
  }
}

/* Responsive adjustment for top-bar on small screens */
@media (max-width: 768px) {
  .top-bar-inner {
    justify-content: center;
    text-align: center;
    gap: 8px;
  }
  
  .top-bar-contact {
    justify-content: center;
    gap: 12px;
    font-size: 0.82rem;
  }
  
  .top-bar:not(.home-top-bar) .top-bar-right {
    display: none; /* Hide header top-bar social on mobile */
  }

  .top-bar.home-top-bar .top-bar-social {
    display: none; /* Keep social icons hidden on small screens */
  }

  .top-bar.home-top-bar .top-bar-right {
    display: flex;
    justify-content: center;
    margin-top: 6px;
    width: 100%;
  }
}

@media (max-width: 480px) {
  .top-bar-contact {
    flex-direction: column;
    gap: 4px;
    font-size: 0.78rem;
  }

  .top-bar-item {
    font-size: 0.78rem;
  }

  .top-bar-wa {
    padding: 5px 14px;
    font-size: 0.8rem;
  }
}