/* ============================================
   NGIS Premium Navigation Bar Stylesheet
   ============================================ */

/* CSS Custom Properties for Navbar */
:root {
    --ngis-nav-height: 80px;
    --ngis-nav-height-scrolled: 64px;
    --ngis-nav-transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --ngis-nav-bg-transparent: transparent;
    --ngis-nav-bg-scrolled: rgba(7, 27, 51, 0.98);
    --ngis-nav-text: #FFFFFF;
    --ngis-nav-text-scrolled: #FFFFFF;
    --ngis-nav-gold: #D5AE63;
    --ngis-nav-navy: #071B33;
    --ngis-nav-royal: #123F70;
}

/* ============================================
   Main Navbar Container
   ============================================ */

.ngis-navbar {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--ngis-nav-height);
    background: var(--ngis-nav-bg-transparent);
    z-index: 1000;
    margin-bottom: calc(-1 * var(--ngis-nav-height));
    transition: all var(--ngis-nav-transition);
    border-bottom: 1px solid transparent;
}

.ngis-navbar-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

/* ============================================
   Logo Styling
   ============================================ */

.ngis-navbar-brand {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    transition: all var(--ngis-nav-transition);
    flex-shrink: 0;
}

.ngis-logo-text {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--ngis-nav-text);
    line-height: 1;
    letter-spacing: -1px;
    transition: all var(--ngis-nav-transition);
}

.ngis-logo-subtitle {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--ngis-nav-gold);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 2px;
    transition: all var(--ngis-nav-transition);
}

.ngis-navbar-logo-image {
    display: block;
    width: auto;
    max-width: 11rem;
    height: 3rem;
    object-fit: contain;
    object-position: left center;
}

.ngis-core-services-menu { min-width: min(1040px, 92vw); }
.ngis-core-services-menu-container { display: grid; grid-template-columns: 1fr; gap: 1.25rem; max-height: 72vh; overflow-y: auto; }
.ngis-mega-menu .ngis-core-services-columns { display: grid !important; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr) !important; align-items: start; gap: 1.5rem; width: 100%; }
.ngis-core-services-column { min-width: 0; }
.ngis-core-services-column + .ngis-core-services-column { border-left: 1px solid #E5E7EB; padding-left: 1.5rem; }
.ngis-core-services-column-label { display: block; margin: 0 0 .75rem; color: var(--ngis-nav-gold); font-size: .68rem; font-weight: 700; letter-spacing: 1.4px; text-transform: uppercase; }
.ngis-core-services-group { min-width: 0; }
.ngis-core-services-group + .ngis-core-services-group { padding-top: 1rem; border-top: 1px solid #E5E7EB; }
.ngis-core-services-group-title { display: flex; align-items: center; gap: .5rem; width: fit-content; text-decoration: none; }
.ngis-core-services-group-title > i:first-child { color: var(--ngis-nav-royal); font-size: .9rem; }
.ngis-core-services-group-title > i:last-child { margin-left: .35rem; color: var(--ngis-nav-gold); font-size: .65rem; }
.ngis-core-services-group-title:hover, .ngis-core-services-group-title:focus { color: var(--ngis-nav-royal); }
.ngis-core-services-items { margin-top: .15rem; }
.ngis-core-services-item-wrap { min-width: 0; }
.ngis-core-services-item { min-height: 2.65rem; }
.ngis-core-services-item-copy { min-width: 0; }
.ngis-core-services-arrow { margin-left: auto; color: var(--ngis-nav-gold); font-size: .65rem; }
.ngis-core-services-children { display: grid; margin: -.55rem 0 .35rem 2.7rem; gap: .15rem; padding-left: .75rem; border-left: 1px solid #E5E7EB; }
.ngis-core-services-child { align-items: center; gap: .45rem; padding: .45rem .65rem; }
.ngis-core-services-child .ngis-menu-item-title { font-size: .82rem; }
.ngis-core-services-child-bullet { color: var(--ngis-nav-gold); font-weight: 700; }
.ngis-core-services-child-bullet { color: var(--ngis-nav-gold); }
.ngis-core-services-child-item { padding-left: 1.65rem; }
.ngis-mobile-menu-parent { display: block; padding: .55rem 0; color: #d5ae63; font-weight: 700; }
.ngis-mobile-group-link { display: flex; align-items: center; justify-content: space-between; color: #d5ae63; text-decoration: none; }
.ngis-mobile-group-link:hover, .ngis-mobile-group-link:focus { color: #fff; }
.ngis-core-services-mobile-children { margin: -.15rem 0 .45rem .8rem; padding-left: .7rem; border-left: 1px solid rgba(213,174,99,.35); }
@media (max-width: 1100px) { .ngis-core-services-menu { min-width: min(700px, 92vw); } .ngis-core-services-columns { gap: 1rem; } .ngis-core-services-column + .ngis-core-services-column { padding-left: 1rem; } }
@media (max-width: 767px) { .ngis-core-services-menu { min-width: 0; } .ngis-mega-menu .ngis-core-services-columns { grid-template-columns: 1fr !important; } .ngis-core-services-column + .ngis-core-services-column { padding-top: 1rem; padding-left: .15rem; border-left: 0; border-top: 1px solid #E5E7EB; } }

/* ============================================
   Desktop Navigation Menu
   ============================================ */

.ngis-nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0.25rem;
    align-items: center;
}

.ngis-nav-item {
    position: relative;
}

.ngis-nav-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 0.9rem;
    color: var(--ngis-nav-text);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    border-radius: 4px;
    white-space: nowrap;
}

.ngis-nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--ngis-nav-gold);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.ngis-nav-link:hover::after,
.ngis-nav-link.active::after {
    width: 80%;
}

.ngis-nav-link:hover,
.ngis-nav-link.active {
    color: var(--ngis-nav-gold);
}

.ngis-nav-link:focus {
    outline: 2px solid var(--ngis-nav-gold);
    outline-offset: 2px;
}

.ngis-nav-link.ngis-nav-action {
    padding: .58rem .9rem;
    border: 1px solid rgba(213, 174, 99, .55);
    border-radius: 999px;
    color: var(--ngis-nav-text);
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .02em;
}

.ngis-nav-link.ngis-nav-action::after {
    display: none;
}

.ngis-nav-link.ngis-nav-action:hover,
.ngis-nav-link.ngis-nav-action.active {
    color: #071b33;
    background: var(--ngis-nav-gold);
    border-color: var(--ngis-nav-gold);
}

.ngis-nav-link.ngis-nav-action-primary {
    color: #071b33;
    background: var(--ngis-nav-gold);
    border-color: var(--ngis-nav-gold);
}

.ngis-nav-link.ngis-nav-action-primary:hover,
.ngis-nav-link.ngis-nav-action-primary.active {
    color: #fff;
    background: #123f70;
    border-color: #123f70;
}

/* ============================================
   Dropdown Toggle
   ============================================ */

.ngis-nav-item-dropdown {
    position: relative;
}

.ngis-dropdown-toggle {
    cursor: pointer;
}

.ngis-dropdown-icon {
    font-size: 0.7rem;
    margin-left: 0.5rem;
    transition: transform 0.3s ease;
}

.ngis-nav-item-dropdown:hover .ngis-dropdown-icon,
.ngis-nav-item-dropdown.active .ngis-dropdown-icon {
    transform: rotate(180deg);
}

.ngis-services-nav-control { display: flex; align-items: center; }
.ngis-core-services-trigger { display: inline-flex; align-items: center; justify-content: center; min-width: 2rem; padding: 0 .35rem; border: 0; background: transparent; color: inherit; cursor: pointer; }
.ngis-core-services-trigger:focus-visible { outline: 2px solid var(--ngis-nav-gold); outline-offset: 3px; border-radius: 4px; }

/* ============================================
   Mega Dropdown Menu
   ============================================ */

.ngis-mega-menu {
    position: fixed;
    top: calc(var(--ngis-nav-height) + 1rem);
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    width: 90%;
    max-width: 1200px;
    background: #FFFFFF;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1001;
    padding: 2rem;
}

.ngis-navbar-scrolled .ngis-mega-menu {
    top: calc(var(--ngis-nav-height-scrolled) + 1rem);
}

.ngis-nav-item-dropdown.active .ngis-mega-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* Core Services uses a compact hierarchical dropdown; other nav dropdowns remain mega menus. */
.ngis-core-services-dropdown {
    position: absolute;
    top: calc(100% + .5rem);
    left: 0;
    width: min(430px, calc(100vw - 2rem));
    max-height: 72vh;
    overflow-y: auto;
    padding: .75rem;
    background: #fff;
    border: 1px solid rgba(7, 27, 51, .08);
    border-radius: 12px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, .18);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity .25s ease, transform .25s ease, visibility .25s ease;
    z-index: 1001;
}
.ngis-nav-item-dropdown.active .ngis-core-services-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.ngis-core-services-dropdown-inner { display: flex; flex-direction: column; gap: .75rem; }
.ngis-core-services-dropdown .ngis-core-services-group + .ngis-core-services-group { padding-top: .75rem; border-top: 1px solid #E5E7EB; }
.ngis-core-services-dropdown .ngis-core-services-group-title { width: 100%; margin-bottom: .5rem; }
.ngis-core-services-dropdown .ngis-core-services-items { grid-template-columns: 1fr; gap: .15rem; }
.ngis-core-services-dropdown .ngis-core-services-item { padding: .7rem .75rem; }
.ngis-core-services-dropdown .ngis-core-services-children { margin: -.15rem 0 .35rem 2.35rem; }

.ngis-mega-menu-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

/* ============================================
   Mega Menu Sections
   ============================================ */

.ngis-mega-menu-section {
    display: flex;
    flex-direction: column;
}

.ngis-mega-menu-section-divider {
    border-left: 1px solid #E5E7EB;
    padding-left: 3rem;
}

.ngis-mega-menu-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--ngis-nav-navy);
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--ngis-nav-gold);
    display: inline-block;
}

.ngis-mega-menu-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

/* ============================================
   Mega Menu Items
   ============================================ */

.ngis-mega-menu-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    background: transparent;
}

.ngis-mega-menu-item:hover,
.ngis-mega-menu-item.active {
    background: var(--ngis-grey-soft);
    transform: translateX(4px);
}

.ngis-mega-menu-item:focus {
    outline: 2px solid var(--ngis-nav-gold);
    outline-offset: 2px;
}

.ngis-menu-icon {
    font-size: 1.25rem;
    color: var(--ngis-nav-royal);
    flex-shrink: 0;
    margin-top: 0.25rem;
}

.ngis-menu-item-content {
    display: flex;
    flex-direction: column;
}

.ngis-menu-item-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--ngis-nav-navy);
    margin-bottom: 0.25rem;
}

.ngis-menu-item-desc {
    font-size: 0.85rem;
    color: #6B7280;
    line-height: 1.4;
}

/* ============================================
   Mobile Menu Toggle
   ============================================ */

.ngis-mobile-toggle {
    display: none;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    flex-shrink: 0;
    border-radius: 4px;
    transition: background 0.3s ease;
}

.ngis-mobile-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}

.ngis-mobile-toggle:focus {
    outline: 2px solid var(--ngis-nav-gold);
    outline-offset: 2px;
}

.ngis-hamburger {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
}

.ngis-hamburger-line {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 2px;
    margin-left: -12px;
    margin-top: -1px;
    background: var(--ngis-nav-text);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.ngis-mobile-toggle:not([aria-expanded="true"]) .ngis-hamburger-line:nth-child(1) {
    transform: translateY(-7px);
}

.ngis-mobile-toggle:not([aria-expanded="true"]) .ngis-hamburger-line:nth-child(3) {
    transform: translateY(7px);
}

.ngis-mobile-toggle[aria-expanded="true"] .ngis-hamburger-line:nth-child(1) {
    transform: rotate(45deg);
}

.ngis-mobile-toggle[aria-expanded="true"] .ngis-hamburger-line:nth-child(2) {
    opacity: 0;
}

.ngis-mobile-toggle[aria-expanded="true"] .ngis-hamburger-line:nth-child(3) {
    transform: rotate(-45deg);
}

/* ============================================
   Mobile Menu
   ============================================ */

.ngis-mobile-menu {
    position: fixed;
    top: var(--ngis-nav-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--ngis-nav-height));
    background: var(--ngis-nav-navy);
    transform: translateX(-100%);
    transition: top 0.4s cubic-bezier(0.4, 0, 0.2, 1), transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
    overflow-y: auto;
    padding: 2rem 0;
}

.ngis-navbar-scrolled .ngis-mobile-menu {
    top: var(--ngis-nav-height-scrolled);
    height: calc(100vh - var(--ngis-nav-height-scrolled));
}

.ngis-mobile-menu[aria-hidden="false"] {
    transform: translateX(0);
}

.ngis-mobile-nav-list {
    list-style: none;
    margin: 0;
    padding: 0 1.5rem;
}

.ngis-mobile-nav-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.ngis-mobile-nav-link {
    display: block;
    padding: 1.25rem 0;
    color: #FFFFFF;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.ngis-mobile-nav-link:hover,
.ngis-mobile-nav-link:focus {
    color: var(--ngis-nav-gold);
}

.ngis-mobile-nav-link:focus {
    outline: none;
}

/* ============================================
   Mobile Accordion
   ============================================ */

.ngis-mobile-accordion-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.ngis-mobile-accordion-toggle {
    width: 100%;
    padding: 1.25rem 0;
    background: transparent;
    border: none;
    color: #FFFFFF;
    font-size: 1.1rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: color 0.3s ease;
}

.ngis-mobile-accordion-toggle:hover,
.ngis-mobile-accordion-toggle:focus,
.ngis-mobile-accordion-toggle.active {
    color: var(--ngis-nav-gold);
    outline: none;
}

.ngis-accordion-icon {
    font-size: 0.8rem;
    transition: transform 0.3s ease;
}

.ngis-mobile-accordion-toggle[aria-expanded="true"] .ngis-accordion-icon {
    transform: rotate(180deg);
}

.ngis-mobile-accordion-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
    background: rgba(255, 255, 255, 0.05);
}

.ngis-mobile-accordion-toggle[aria-expanded="true"] + .ngis-mobile-accordion-menu {
    max-height: min(70vh, 900px);
    overflow-y: auto;
}

.ngis-mobile-accordion-section {
    padding: 1rem 0;
}

.ngis-mobile-section-title {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ngis-nav-gold);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.75rem;
    padding: 0 1rem;
}

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

.ngis-mobile-submenu li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.ngis-mobile-submenu li:last-child {
    border-bottom: none;
}

.ngis-mobile-submenu a {
    display: block;
    padding: 0.875rem 1rem;
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.ngis-mobile-submenu a:hover,
.ngis-mobile-submenu a.active {
    color: var(--ngis-nav-gold);
    padding-left: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
}

/* ============================================
   Scrolled State
   ============================================ */

.ngis-navbar.ngis-navbar-scrolled {
    height: var(--ngis-nav-height-scrolled);
    margin-bottom: calc(-1 * var(--ngis-nav-height-scrolled));
    background: var(--ngis-nav-bg-scrolled);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    border-bottom: 1px solid rgba(213, 174, 99, 0.2);
}

.ngis-navbar-scrolled .ngis-logo-text {
    font-size: 2rem;
}

.ngis-navbar-scrolled .ngis-logo-subtitle {
    font-size: 0.65rem;
}

.ngis-navbar-scrolled .ngis-nav-link {
    color: var(--ngis-nav-text-scrolled);
}

.ngis-navbar-scrolled .ngis-nav-link:hover,
.ngis-navbar-scrolled .ngis-nav-link.active {
    color: var(--ngis-nav-gold);
}

/* ============================================
   Text Shadow for Contrast
   ============================================ */

.ngis-navbar:not(.ngis-navbar-scrolled) .ngis-logo-text,
.ngis-navbar:not(.ngis-navbar-scrolled) .ngis-logo-subtitle,
.ngis-navbar:not(.ngis-navbar-scrolled) .ngis-nav-link {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* ============================================
   Reduced Motion Support
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    .ngis-navbar,
    .ngis-navbar-brand,
    .ngis-logo-text,
    .ngis-logo-subtitle,
    .ngis-nav-link,
    .ngis-dropdown-icon,
    .ngis-mega-menu,
    .ngis-mega-menu-item,
    .ngis-hamburger-line,
    .ngis-mobile-menu,
    .ngis-accordion-icon,
    .ngis-mobile-accordion-menu,
    .ngis-mobile-submenu a {
        transition: none !important;
        animation: none !important;
    }
}

/* ============================================
   Responsive Design - Tablet
   ============================================ */

@media (max-width: 1199px) {
    .ngis-navbar-container {
        padding: 0 1.5rem;
    }
    
    .ngis-mega-menu-container {
        gap: 2rem;
    }
    
    .ngis-mega-menu-grid {
        grid-template-columns: 1fr;
    }
    
    .ngis-mega-menu-section-divider {
        padding-left: 2rem;
    }
}

/* ============================================
   Responsive Design - Mobile
   ============================================ */

@media (max-width: 991px) {
    .ngis-nav-menu {
        display: none;
    }
    
    .ngis-mobile-toggle {
        display: flex;
    }
    
    .ngis-mega-menu {
        display: none;
    }
    
    .ngis-navbar-container {
        padding: 0 1rem;
    }
    
    .ngis-logo-text {
        font-size: 2rem;
    }
    
    .ngis-logo-subtitle {
        font-size: 0.7rem;
    }
}

/* ============================================
   Responsive Design - Small Mobile
   ============================================ */

@media (max-width: 576px) {
    :root {
        --ngis-nav-height: 70px;
        --ngis-nav-height-scrolled: 56px;
    }
    
    .ngis-navbar-container {
        padding: 0 1rem;
    }
    
    .ngis-logo-text {
        font-size: 1.75rem;
    }
    
    .ngis-logo-subtitle {
        font-size: 0.65rem;
    }
    
    .ngis-mobile-nav-list {
        padding: 0 1rem;
    }
    
    .ngis-mobile-nav-link,
    .ngis-mobile-accordion-toggle {
        font-size: 1rem;
        padding: 1rem 0;
    }
    
    .ngis-mobile-menu {
        padding: 1.5rem 0;
    }
}

/* ============================================
   Carousel Positioning Adjustment
   ============================================ */

/* Since navbar is fixed, add padding to carousel */
.ngis-hero-carousel {
    padding-top: var(--ngis-nav-height);
    transition: padding-top var(--ngis-nav-transition);
}

.ngis-navbar-scrolled + header .ngis-hero-carousel {
    padding-top: var(--ngis-nav-height-scrolled);
}