/* ==========================================================================
   NSSF Navigation Menu Bar - Sticky on Scroll Down with Animation
   Targeting .app-bar / .site-sticky-menubar with Full Submenu Support
   ========================================================================== */

/* -----------------------------------------
   1. Base Navigation Menu Bar
   ----------------------------------------- */
.app-bar,
.site-sticky-menubar {
    width: 100%;
    background-color: rgba(57, 73, 171, 1);
    position: relative;
    z-index: 1100;
    overflow: visible !important;
    transition: background-color 0.32s ease,
                box-shadow 0.32s ease;
}

/* Ensure all parents and nav containers allow submenus to overflow */
.site-sticky-menubar,
.site-sticky-menubar .md-container-cus,
.site-sticky-menubar .d-flex,
.site-sticky-menubar .menu-hide,
.site-sticky-menubar .nav,
.site-sticky-menubar .nav-item,
.site-sticky-menubar .dropdown {
    overflow: visible !important;
}

/* Layout placeholder to prevent content jump when navbar sticks */
.app-bar-placeholder {
    display: none;
    height: 48px;
    width: 100%;
}

/* -----------------------------------------
   2. Sticky Mode on Scroll Down
   Triggered as user scrolls down past the top logo bar
   ----------------------------------------- */
.app-bar.is-stuck,
.site-sticky-menubar.is-stuck,
.app-bar.fixed-header,
.site-sticky-menubar.fixed-header {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    z-index: 1250 !important;
    overflow: visible !important;
    background-color: rgba(57, 73, 171, 1) !important;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 10px 30px -5px rgba(10, 25, 60, 0.38), 0 4px 12px -2px rgba(10, 25, 60, 0.18), 0 1px 0 rgba(255, 255, 255, 0.18) inset !important;
    /* Entrance animation without 'forwards' to prevent transform trap on submenus */
    animation: stickyMenuSlideDown 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Activate placeholder when stuck to preserve layout flow */
.app-bar.is-stuck + .app-bar-placeholder,
.site-sticky-menubar.is-stuck + .app-bar-placeholder {
    display: block !important;
}

/* Slide Down Entrance Animation */
@keyframes stickyMenuSlideDown {
    0% {
        transform: translateY(-100%);
        opacity: 0.6;
    }
    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

/* -----------------------------------------
   3. Animated Glowing Light Beam along bottom border
   ----------------------------------------- */
.app-bar.is-stuck::after,
.site-sticky-menubar.is-stuck::after,
.app-bar.fixed-header::after,
.site-sticky-menubar.fixed-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(56, 189, 248, 0.6) 25%,
        rgba(255, 255, 255, 0.95) 50%,
        rgba(56, 189, 248, 0.6) 75%,
        transparent 100%
    );
    background-size: 200% 100%;
    animation: navGlowBeam 4s infinite linear;
    pointer-events: none;
    z-index: 10;
}

@keyframes navGlowBeam {
    0% {
        background-position: -100% 0;
    }
    100% {
        background-position: 100% 0;
    }
}

/* -----------------------------------------
   4. Navigation Links & Items (Matching Master Menu Font)
   ----------------------------------------- */
.app-bar,
.site-sticky-menubar,
.app-bar .nav-link,
.site-sticky-menubar .nav-link,
.app-bar .dropdown-item,
.site-sticky-menubar .dropdown-item,
.dropdown-menu,
.dropdown-item {
    font-family: 'Kantumruy', sans-serif !important;
}

.app-bar .nav-link,
.site-sticky-menubar .nav-link {
    transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 8px;
    margin: 2px 3px;
    padding: 9px 12px !important;
    color: #ffffff !important;
    position: relative;
    letter-spacing: 0.15px;
    display: inline-flex;
    align-items: center;
    cursor: pointer;
}

/* Nav Link Hover State */
.app-bar .nav-link:hover,
.site-sticky-menubar .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.16) !important;
    color: #ffffff !important;
    transform: translateY(-1.5px);
    box-shadow: 0 4px 12px rgba(10, 25, 60, 0.22);
}

/* Nav Link Active State (Current Page / Route) */
.app-bar .nav-item > .active,
.site-sticky-menubar .nav-item > .active,
.app-bar .nav-link.active,
.site-sticky-menubar .nav-link.active,
.nav-item > .nav-link.active {
    background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%) !important;
    color: #ffffff !important;
    font-weight: 600 !important;
    border-radius: 8px !important;
    box-shadow: 
        0 4px 14px rgba(37, 99, 235, 0.45),
        inset 0 1px 0 rgba(255, 255, 255, 0.4),
        0 0 0 1px rgba(255, 255, 255, 0.15) !important;
    position: relative !important;
    transform: translateY(-1px);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
}

/* Glowing Accent Indicator Bar underneath Active Desktop Nav Link */
.app-bar .nav-item > .active::after,
.site-sticky-menubar .nav-item > .active::after,
.app-bar .nav-link.active::after,
.site-sticky-menubar .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 3px;
    border-radius: 3px;
    background: linear-gradient(90deg, #38bdf8, #ffffff, #38bdf8);
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.95);
    animation: activePillPulse 2.5s infinite ease-in-out;
}

@keyframes activePillPulse {
    0%, 100% {
        opacity: 0.85;
        transform: translateX(-50%) scaleX(1);
    }
    50% {
        opacity: 1;
        transform: translateX(-50%) scaleX(1.22);
    }
}

/* Nav Link Click / Tactile Press (:active) */
.app-bar .nav-link:active,
.site-sticky-menubar .nav-link:active,
.app-bar .nav-item > .active:active,
.site-sticky-menubar .nav-item > .active:active {
    transform: scale(0.95) translateY(1px) !important;
    filter: brightness(1.12);
    box-shadow: 0 2px 6px rgba(10, 25, 60, 0.35), inset 0 2px 4px rgba(0, 0, 0, 0.2) !important;
    transition: transform 0.08s ease, filter 0.08s ease !important;
}

/* -----------------------------------------
   5. Dropdown Menu & Submenus (1st & 2nd Level)
   ----------------------------------------- */
.dropdown-menu {
    overflow: visible !important;
    z-index: 1400 !important;
    font-family: 'Kantumruy', sans-serif !important;
    border: 1px solid rgba(226, 232, 240, 0.9) !important;
    border-radius: 10px !important;
    padding: 6px !important;
    background: #ffffff !important;
    box-shadow: 0 14px 36px -4px rgba(15, 23, 42, 0.18), 0 4px 12px rgba(15, 23, 42, 0.08) !important;
    min-width: 240px !important;
}

.app-bar.is-stuck .dropdown-menu,
.site-sticky-menubar.is-stuck .dropdown-menu {
    overflow: visible !important;
    box-shadow: 0 16px 36px rgba(10, 25, 60, 0.3) !important;
    border: 1px solid rgba(226, 232, 240, 0.95) !important;
    z-index: 1400 !important;
}

/* Dropdown Item Base Styling */
.dropdown-item {
    font-family: 'Kantumruy', sans-serif !important;
    font-size: 13.5px !important;
    color: #334155 !important;
    padding: 9px 14px !important;
    margin: 2px 0 !important;
    border-radius: 6px !important;
    border-top: none !important;
    border-left: 3.5px solid transparent !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1) !important;
    position: relative !important;
    cursor: pointer;
}

/* Dropdown Item Hover State */
.dropdown-item:hover,
.dropdown-submenu:hover > .dropdown-item {
    background: linear-gradient(90deg, rgba(37, 99, 235, 0.09) 0%, rgba(37, 99, 235, 0.02) 100%) !important;
    color: #1e3a8a !important;
    border-left: 3.5px solid #2563eb !important;
    padding-left: 17px !important;
    font-weight: 600 !important;
    transform: translateX(2px);
}

/* Dropdown Item Active State (1st and 2nd Level Selected Item) */
.dropdown-item.active,
.dropdown-menu > li > .dropdown-item.active,
.dropdown-submenu > .dropdown-item.active,
.dropdown-submenu .dropdown-item.active {
    background: linear-gradient(90deg, #1e3a8a 0%, #2563eb 100%) !important;
    color: #ffffff !important;
    font-weight: 600 !important;
    border-left: 4px solid #38bdf8 !important;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.25) !important;
    padding-left: 17px !important;
    border-radius: 6px !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.25);
}

/* Dropdown Item Click / Tactile Press (:active) */
.dropdown-item:active {
    transform: scale(0.97) translateX(3px) !important;
    background: linear-gradient(90deg, #172554 0%, #1d4ed8 100%) !important;
    color: #ffffff !important;
    box-shadow: 0 2px 6px rgba(29, 78, 216, 0.4) !important;
    transition: transform 0.08s ease !important;
}

/* Submenu Arrow Indicator */
.custom-toggle-arrow {
    color: #94a3b8;
    font-size: 16px;
    font-weight: bold;
    transition: transform 0.2s ease, color 0.2s ease;
    margin-left: 8px;
}

.dropdown-item:hover .custom-toggle-arrow,
.dropdown-submenu:hover > .dropdown-item .custom-toggle-arrow {
    color: #2563eb;
    transform: translateX(3px);
}

.dropdown-item.active .custom-toggle-arrow {
    color: #ffffff !important;
    transform: translateX(3px);
}

/* Submenu parent element */
.dropdown-submenu {
    position: relative !important;
}

/* Second Submenu Display on Hover */
.dropdown-submenu:hover > .dropdown-menu,
.dropdown-submenu:focus-within > .dropdown-menu {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    pointer-events: auto !important;
    left: 100% !important;
    margin-top: -76px !important;
    z-index: 1500 !important;
    box-shadow: 0 14px 36px rgba(10, 25, 60, 0.32) !important;
    border: 1px solid rgba(226, 232, 240, 0.95) !important;
    overflow: visible !important;
}

/* Hover bridge between first and second submenu to prevent mouse hover loss */
.dropdown-submenu > .dropdown-menu::before {
    content: '';
    position: absolute;
    top: 0;
    left: -20px;
    width: 25px;
    height: 100%;
    background: transparent;
    pointer-events: auto;
    z-index: 1501;
}

/* -----------------------------------------
   6. Mobile Drawer Active Navigation Items
   ----------------------------------------- */
.menu-active-mobile-main {
    background: linear-gradient(90deg, rgba(37, 99, 235, 0.12) 0%, rgba(37, 99, 235, 0.02) 100%) !important;
    border-left: 4px solid #2563eb !important;
    border-radius: 0 8px 8px 0 !important;
    padding-left: 8px !important;
    padding-right: 8px !important;
    margin: 2px 4px 2px 0 !important;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6) !important;
}

.menu-active-mobile-main > .mud-nav-link > .mud-nav-link-text,
.menu-active-mobile-main > .mud-button-label,
.menu-active-mobile-main .mud-nav-link-text {
    color: #1e3a8a !important;
    font-weight: 700 !important;
    font-family: 'Kantumruy', sans-serif !important;
}

.menu-active-mobile {
    background: linear-gradient(90deg, rgba(56, 189, 248, 0.15) 0%, rgba(56, 189, 248, 0.03) 100%) !important;
    border-left: 3.5px solid #0284c7 !important;
    border-radius: 0 6px 6px 0 !important;
    margin: 2px 4px 2px 0 !important;
}

.menu-active-mobile > .mud-nav-link > .mud-nav-link-text,
.menu-active-mobile .mud-nav-link-text {
    color: #0369a1 !important;
    font-weight: 600 !important;
    font-family: 'Kantumruy', sans-serif !important;
}

/* Mobile Drawer Click / Tap Response */
.mobile-sidebar .mud-nav-link:active,
.mobile-sidebar .mud-button:active {
    background-color: rgba(37, 99, 235, 0.18) !important;
    transform: scale(0.98);
    transition: transform 0.08s ease;
}

/* Quick action button click tactile response */
.btn-menu-sub,
.btn-m {
    transition: transform 0.15s ease, box-shadow 0.15s ease !important;
}

.btn-menu-sub:active,
.btn-m:active {
    transform: scale(0.93) !important;
    transition: transform 0.08s ease !important;
}

/* -----------------------------------------
   7. Mobile Media Queries (< 768px)
   ----------------------------------------- */
@media (max-width: 767px) {
    .app-bar.is-stuck,
    .site-sticky-menubar.is-stuck {
        padding: 4px 0 !important;
    }

    .app-bar.is-stuck .btn-menu-sub,
    .site-sticky-menubar.is-stuck .btn-menu-sub {
        transform: scale(0.92);
        box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    }
}