.sticky-header {
    border-bottom: 1px solid rgba(226, 232, 240, 0.9);
    transition:
        opacity 180ms ease,
        transform 220ms ease;
    will-change: transform, opacity;
}

body.subnav-is-visible .sticky-header {
    opacity: 0;
    pointer-events: none;
    transform: translateY(-100%);
}

.nav-dropdown {
    position: relative;
}

.nav-dropdown::after {
    content: "";
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    height: 14px;
}

.nav-dropdown-trigger,
.nav-link {
    display: inline-flex;
    min-height: 42px;
    align-items: center;
    gap: 0.35rem;
    border-radius: 999px;
    padding: 0 0.75rem;
    color: #03132A;
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    transition:
        background-color 180ms ease,
        color 180ms ease,
        box-shadow 180ms ease;
}

.nav-dropdown-trigger:hover,
.nav-dropdown-trigger:focus-visible,
.nav-dropdown.open>.nav-dropdown-trigger,
.nav-dropdown:focus-within>.nav-dropdown-trigger,
.nav-link:hover,
.nav-link:focus-visible {
    background: #DDEFFF;
    opacity: 25;
    color: #03132A;
    outline: none;
}

.nav-chevron,
.mobile-chevron,
.mobile-nested-chevron,
.mobile-grandchild-chevron {
    transition: transform 180ms ease;
}

.desktop-dropdown {
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    z-index: 50;
    min-width: 200px;
    width: max-content;
    max-width: min(520px, calc(100vw - 2rem));
    border: 1px solid rgba(226, 232, 240, 0.95);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 22px 60px #03132A;
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px);
    transition:
        opacity 180ms ease,
        transform 180ms ease,
        visibility 180ms ease;
    visibility: hidden;
}

.desktop-dropdown::after {
    content: "";
    position: absolute;
    top: -14px;
    right: 0;
    left: 0;
    height: 14px;
}

.desktop-dropdown::before {
    content: "";
    position: absolute;
    top: -7px;
    left: 28px;
    width: 14px;
    height: 14px;
    border-top: 1px solid rgba(226, 232, 240, 0.95);
    border-left: 1px solid rgba(226, 232, 240, 0.95);
    background: rgba(255, 255, 255, 0.98);
    transform: rotate(45deg);
}

.desktop-dropdown.dropdown-center {
    left: 50%;
    transform: translate(-50%, 10px);
}

.desktop-dropdown.dropdown-center::before {
    left: 50%;
    transform: translateX(-50%) rotate(45deg);
}

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

.nav-dropdown:hover>.desktop-dropdown.dropdown-center,
.nav-dropdown:focus-within>.desktop-dropdown.dropdown-center,
.nav-dropdown.open>.desktop-dropdown.dropdown-center {
    transform: translate(-50%, 0);
}

.nav-dropdown:hover>.nav-dropdown-trigger .nav-chevron,
.nav-dropdown:focus-within>.nav-dropdown-trigger .nav-chevron,
.nav-dropdown.open>.nav-dropdown-trigger .nav-chevron,
.mobile-dropdown.open .mobile-chevron,
.mobile-nested-dropdown.open .mobile-nested-chevron,
.mobile-grandchild-dropdown.open .mobile-grandchild-chevron {
    transform: rotate(180deg);
}

.desktop-menu-link,
.submenu-link,
.destination-tour-link {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-radius: 12px;
    padding: 0.7rem 0.75rem;
    color: #03132A;
    font-size: 0.875rem;
    font-weight: 700;
    line-height: 1.25;
    transition:
        background-color 180ms ease,
        color 180ms ease,
        transform 180ms ease;
}

.desktop-menu-link:hover,
.submenu-link:hover,
.destination-tour-link:hover,
.desktop-menu-link:focus-visible,
.submenu-link:focus-visible,
.destination-tour-link:focus-visible {
    background: #C3D5C7;
    color: #03132A;
    outline: none;
    transform: translateX(2px);
}

.desktop-menu-icon {
    display: inline-flex;
    width: 2rem;
    height: 2rem;
    flex: 0 0 2rem;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: #DDEFFF;
    color: #03132A;
    transition:
        background-color 180ms ease,
        color 180ms ease;
}

.desktop-menu-link:hover .desktop-menu-icon,
.desktop-menu-link:focus-visible .desktop-menu-icon {
    background: #03132A;
    color: #fff;
}

.destination-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.dropdown-section-title {
    margin: 0 0 0.45rem;
    padding: 0 0.75rem;
    color: #03132A;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.menu-list {
    display: grid;
    gap: 0.15rem;
    overflow: visible;
}

/* Desktop sub-dropdown / grandchild dropdown */
.submenu-dropdown {
    position: relative;
}

.submenu-dropdown>.submenu-link {
    justify-content: space-between;
    cursor: pointer;
    padding: 0.45rem 0.65rem;
    gap: 0.35rem;
}

.submenu-child {
    position: absolute;
    top: 0;
    left: calc(100% + 8px);
    z-index: 80;
    width: max-content;
    min-width: 180px;
    max-width: min(600px, calc(100vw - 4rem));
    display: grid;
    grid-auto-flow: column;
    grid-template-rows: repeat(8, auto);
    gap: 0.15rem;
    padding: 0.65rem;
    border: 1px solid rgba(226, 232, 240, 0.95);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.14);

    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(8px);
    transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
}

/* Open after click or hover */
.submenu-dropdown.open>.submenu-child,
.submenu-dropdown:hover>.submenu-child {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(0);
}

.submenu-dropdown.open>.submenu-link,
.submenu-dropdown:hover>.submenu-link {
    background: #DDEFFF;
    color: #03132A;
}

.submenu-dropdown.open>.submenu-link i,
.submenu-dropdown:hover>.submenu-link i {
    transform: rotate(90deg);
}

/* 3rd-level nav items: compact, small text */
.submenu-child>.submenu-link {
    font-size: 0.75rem;
    padding: 0.3rem 0.5rem;
    gap: 0.3rem;
    line-height: 1.2;
}

/* Mobile grandchild dropdown */
.mobile-nested-submenu {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transform: translateY(-4px);
    transition: max-height 240ms ease, opacity 180ms ease, transform 180ms ease;
}

.mobile-nested-dropdown.open>.mobile-nested-submenu {
    max-height: 520px;
    opacity: 1;
    transform: translateY(0);
}

.destination-tour-link {
    margin-top: 0.75rem;
    min-height: 44px;
    justify-content: space-between;
    border: 1px solid #dbeafe;
    background: #f8fbff;
}

.tour-duration {
    flex: 0 0 auto;
    border-radius: 999px;
    background: #DDEFFF;
    padding: 0.15rem 0.5rem;
    color: #03132A;
    font-size: 0.72rem;
    font-weight: 800;
}

#mobile-menu {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: flex;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transform: translateY(-8px);
    transition:
        max-height 320ms ease,
        opacity 220ms ease,
        transform 220ms ease,
        visibility 220ms ease;
    visibility: hidden;
}

#mobile-menu.open {
    max-height: calc(100vh - 68px);
    opacity: 1;
    overflow-y: auto;
    transform: translateY(0);
    visibility: visible;
}

.mobile-dropdown-trigger,
.mobile-menu-link,
.mobile-nested-trigger,
.mobile-grandchild-trigger {
    min-height: 46px;
    border-radius: 12px;
    transition:
        background-color 180ms ease,
        color 180ms ease;
}

.mobile-dropdown-trigger:hover,
.mobile-menu-link:hover,
.mobile-nested-trigger:hover,
.mobile-grandchild-trigger:hover,
.mobile-dropdown.open>.mobile-dropdown-trigger,
.mobile-nested-dropdown.open>.mobile-nested-trigger,
.mobile-grandchild-dropdown.open>.mobile-grandchild-trigger {
    background: #DDEFFF;
    color: #03132A;
}

.mobile-submenu {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transform: translateY(-4px);
    transition:
        max-height 280ms ease,
        opacity 200ms ease,
        transform 200ms ease;
}

.mobile-dropdown.open .mobile-submenu {
    max-height: 980px;
    opacity: 1;
    transform: translateY(0);
}

.mobile-submenu-inner {
    display: grid;
    gap: 0.25rem;
    padding: 0 0 0.75rem 0.75rem;
}

.mobile-nested-submenu {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transform: translateY(-4px);
    transition:
        max-height 240ms ease,
        opacity 180ms ease,
        transform 180ms ease;
}

.mobile-nested-dropdown.open .mobile-nested-submenu {
    max-height: 860px;
    opacity: 1;
    transform: translateY(0);
}

.mobile-grandchild-submenu {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transform: translateY(-4px);
    transition:
        max-height 220ms ease,
        opacity 180ms ease,
        transform 180ms ease;
}

.mobile-grandchild-dropdown.open>.mobile-grandchild-submenu {
    max-height: 1200px;
    opacity: 1;
    transform: translateY(0);
}

.mobile-grandchild-trigger {
    min-height: 42px;
}

.hamburger-line {
    display: block;
    width: 20px;
    height: 2px;
    border-radius: 999px;
    background: #03132A;
    transform-origin: center;
    transition:
        transform 180ms ease,
        opacity 180ms ease;
}

#hamburger.is-open .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

#hamburger.is-open .hamburger-line:nth-child(2) {
    opacity: 0;
}

#hamburger.is-open .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Premium dropdown refresh */
.nav-dropdown::after {
    height: 18px;
}

.nav-dropdown-trigger,
.nav-link {
    min-height: 44px;
    padding: 0 0.9rem;
    color: #082235;
    letter-spacing: 0;
    transition:
        background 220ms ease,
        color 220ms ease,
        box-shadow 220ms ease,
        transform 220ms ease;
}

.nav-dropdown-trigger:hover,
.nav-dropdown-trigger:focus-visible,
.nav-dropdown.open>.nav-dropdown-trigger,
.nav-dropdown:focus-within>.nav-dropdown-trigger,
.nav-link:hover,
.nav-link:focus-visible {
    background: linear-gradient(135deg, #DDEFFF, rgba(221, 239, 255, 0.92));
    box-shadow: 0 10px 26px rgba(0, 27, 47, 0.08);
    color: #03132A;
    opacity: 1;
    transform: translateY(-1px);
}

.desktop-dropdown {
    top: calc(100% + 16px);
    min-width: 200px;
    width: max-content;
    max-width: min(520px, calc(100vw - 2rem));
    border: 1px solid rgba(203, 213, 225, 0.72);
    border-radius: 20px;
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.98), (221, 239, 255, 0.92));
    box-shadow:
        0 30px 70px rgba(0, 27, 47, 0.16),
        0 10px 26px rgba(0, 172, 126, 0.08);
    overflow: visible;
    transform: translateY(14px) scale(0.985);
    transform-origin: top center;
    transition:
        opacity 240ms ease,
        transform 280ms cubic-bezier(0.2, 0.8, 0.2, 1),
        visibility 240ms ease;
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
}

.desktop-dropdown::after {
    top: -18px;
    height: 18px;
}

.desktop-dropdown::before {
    top: -8px;
    border-color: rgba(203, 213, 225, 0.72);
    background: rgba(255, 255, 255, 0.96);
}

.desktop-dropdown.dropdown-center {
    transform: translate(-50%, 14px) scale(0.985);
}

.nav-dropdown:hover>.desktop-dropdown,
.nav-dropdown:focus-within>.desktop-dropdown,
.nav-dropdown.open>.desktop-dropdown {
    transform: translateY(0) scale(1);
}

.nav-dropdown:hover>.desktop-dropdown.dropdown-center,
.nav-dropdown:focus-within>.desktop-dropdown.dropdown-center,
.nav-dropdown.open>.desktop-dropdown.dropdown-center {
    transform: translate(-50%, 0) scale(1);
}

.desktop-menu-link,
.submenu-link,
.destination-tour-link {
    border: 1px solid transparent;
    border-radius: 10px;
    color: #082235;
    font-size: 0.9rem;
    letter-spacing: 0;
    transition:
        background 220ms ease,
        border-color 220ms ease,
        box-shadow 220ms ease,
        color 220ms ease,
        transform 220ms ease;
}

.desktop-menu-link:hover,
.submenu-link:hover,
.destination-tour-link:hover,
.desktop-menu-link:focus-visible,
.submenu-link:focus-visible,
.destination-tour-link:focus-visible {
    background: linear-gradient(135deg, #DDEFFF, rgba(221, 239, 255, 0.92));
    border-color: rgba(0, 135, 172, 0.16);
    box-shadow: 0 10px 24px rgba(0, 27, 47, 0.08);
    color: #03132A;
    transform: translateX(4px);
}

.desktop-menu-icon {
    border: 1px solid rgba(0, 120, 172, 0.15);
    background: linear-gradient(135deg, #DDEFFF, rgba(221, 239, 255, 0.92));
    ;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.75);
    color: #0c353b;
}

.desktop-menu-link:hover .desktop-menu-icon,
.desktop-menu-link:focus-visible .desktop-menu-icon,
.destination-tour-link:hover .desktop-menu-icon,
.destination-tour-link:focus-visible .desktop-menu-icon {
    background: #03132A;
    color: #fff;
}

.dropdown-section-title {
    margin-bottom: 0.8rem;
    padding: 0 0.25rem;
    color: #526476;
    font-size: 0.68rem;
    letter-spacing: 0.14em;
}

.menu-list {
    gap: 0.45rem;
}

.submenu-dropdown.open>.submenu-link,
.submenu-dropdown:hover>.submenu-link {
    background: linear-gradient(135deg, #DDEFFF, rgba(221, 239, 255, 0.92));
    box-shadow:
        inset 3px 0 0 #2D5F23,
        0 12px 24px rgba(0, 27, 47, 0.08);
    color: #03132A;
}

.submenu-dropdown.open>.submenu-link i,
.submenu-dropdown:hover>.submenu-link i {
    color: #2D5F23;
    transform: translateX(2px);
}

.submenu-child {
    border-color: rgba(203, 213, 225, 0.72);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow:
        0 24px 55px rgba(0, 27, 47, 0.15),
        0 8px 24px rgba(0, 172, 126, 0.08);
    transform: translateX(12px) scale(0.985);
    transform-origin: left top;
    transition:
        opacity 220ms ease,
        transform 260ms cubic-bezier(0.2, 0.8, 0.2, 1),
        visibility 220ms ease;
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
}

/* When flipped to open left (set by JS viewport detection) */
.submenu-child.flipped-left {
    left: auto;
    right: calc(100% + 8px);
    transform: translateX(-12px) scale(0.985);
    transform-origin: right top;
}

.submenu-dropdown.open > .submenu-child.flipped-left,
.submenu-dropdown:hover > .submenu-child.flipped-left {
    transform: translateX(0) scale(1);
}

.submenu-dropdown.open>.submenu-child,
.submenu-dropdown:hover>.submenu-child {
    transform: translateX(0) scale(1);
}

.destination-tour-link {
    margin-top: 1.1rem;
    min-height: 52px;
    border-color: rgba(0, 172, 126, 0.18);
    background: #DDEFFF;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.78);
}

#nepal-menu {
    isolation: isolate;
}

#nepal-menu::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    border-radius: inherit;
    background:
        linear-gradient(120deg, rgba(0, 172, 126, 0.08), transparent 32%, rgba(245, 158, 11, 0.08));
    pointer-events: none;
}

#nepal-menu>* {
    position: relative;
    z-index: 1;
}

@media (min-width: 1024px) {
    #nepal-menu {
        width: min(780px, calc(100vw - 2rem)) !important;
        max-width: calc(100vw - 2rem);
        min-height: 380px;
        padding: 1.45rem !important;
    }

    #nepal-menu .destination-col {
        --menu-sidebar: 260px;
        position: relative;
        display: grid;
        grid-template-columns: var(--menu-sidebar) minmax(0, 1fr);
        gap: 1.4rem;
        min-height: 304px;
    }

    #nepal-menu .destination-col::before {
        content: "";
        position: absolute;
        top: 0.15rem;
        bottom: 0.15rem;
        left: calc(var(--menu-sidebar) + 0.7rem);
        width: 1px;
        background: linear-gradient(to bottom, transparent, rgba(148, 163, 184, 0.42), transparent);
    }

    #nepal-menu .destination-col>div:first-child {
        min-width: 0;
    }

    #nepal-menu .submenu-dropdown {
        position: static;
    }

    #nepal-menu .submenu-link {
        min-height: 46px;
        padding: 0.76rem 0.85rem;
    }

    #nepal-menu .submenu-child {
        top: 2.2rem;
        right: 0;
        bottom: 0;
        left: calc(var(--menu-sidebar) + 1.4rem);
        min-width: 0;
        max-width: none;
        width: auto;
        max-height: 100%;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        align-content: start;
        gap: 0.65rem;
        overflow-y: auto;
        padding: 0.15rem 0 0.25rem;
        border: 0;
        background: transparent;
        box-shadow: none;
        -webkit-backdrop-filter: none;
        backdrop-filter: none;
    }

    #nepal-menu .submenu-child .submenu-link {
        min-height: 58px;
        align-items: center;
        padding: 0.85rem 0.85rem 0.85rem 3rem;
        border: 1px solid rgba(203, 213, 225, 0.68);
        background: rgba(255, 255, 255, 0.72);
        box-shadow: 0 12px 26px rgba(0, 27, 47, 0.07);
        font-size: 0.84rem;
        font-weight: 800;
    }

    #nepal-menu .submenu-child .submenu-link::before {
        content: "";
        position: absolute;
        left: 0.85rem;
        width: 1.55rem;
        height: 1.55rem;
        border-radius: 8px;

        /* 👇 IMAGE instead of gradient */
        background-image: url("Images/Everest/Mountain pic.jpg");
        background-size: cover;
        background-position: center;
        background-repeat: no-repeat;
        box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.72);
        transition: transform 220ms ease;
    }

    #nepal-menu .submenu-child .submenu-link:hover,
    #nepal-menu .submenu-child .submenu-link:focus-visible {
        border-color: rgba(0, 172, 126, 0.22);
        background: rgba(255, 255, 255, 0.95);
        transform: translateY(-2px);
    }

    #nepal-menu .submenu-child .submenu-link:hover::before,
    #nepal-menu .submenu-child .submenu-link:focus-visible::before {
        transform: scale(1.06);
    }
}

#mobile-menu {
    border-top: 1px solid rgba(203, 213, 225, 0.72);
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 24px 45px rgba(0, 27, 47, 0.14);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
}

.mobile-dropdown-trigger,
.mobile-menu-link,
.mobile-nested-trigger,
.mobile-grandchild-trigger {
    border-radius: 10px;
    color: #082235;
}

.mobile-dropdown-trigger:hover,
.mobile-menu-link:hover,
.mobile-nested-trigger:hover,
.mobile-grandchild-trigger:hover,
.mobile-dropdown.open>.mobile-dropdown-trigger,
.mobile-nested-dropdown.open>.mobile-nested-trigger,
.mobile-grandchild-dropdown.open>.mobile-grandchild-trigger {
    background: linear-gradient(135deg, rgba(211, 234, 216, 0.92), rgba(247, 251, 248, 0.92));
    color: #03132A;
}

.mobile-submenu-inner {
    margin-left: 0.35rem;
    border-left: 1px solid rgba(148, 163, 184, 0.28);
    padding: 0.35rem 0.5rem 0.85rem 0.85rem;
}

.mobile-grandchild-submenu {
    margin-left: 0.45rem;
    border-left: 1px solid rgba(0, 172, 126, 0.18);
    padding-left: 0.55rem;
}

@media (min-width: 1024px) and (max-width: 1180px) {

    .nav-dropdown-trigger,
    .nav-link {
        padding: 0 0.55rem;
        font-size: 0.8rem;
    }

    .desktop-contact-number {
        display: none;
    }
}

@media (min-width: 1024px) {
    #mobile-menu {
        display: none !important;
    }
}

@media (max-width: 1023px) {
    .desktop-dropdown {
        display: none;
    }
}