/* ===========================
   Modern Navigation Styles
   =========================== */

/* ===========================
   1. DESKTOP: STICKY HEADER ONLY
   =========================== */

/* Sticky header */
#header {
    position: sticky !important;
    top: 0;
    z-index: 1030;
}

#header.header-scrolled {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.18);
}

/* ===========================
   2. MOBILE: FULLSCREEN OVERLAY
   =========================== */

@media (max-width: 991px) {
    /* Override Bootstrap collapse - fullscreen overlay */
    #header-nav {
        display: block !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        bottom: 0 !important;
        width: 100vw !important;
        height: 100vh !important;
        height: 100dvh !important;
        background: #1a202c !important;
        z-index: 9998 !important;
        transform: translateX(100%);
        transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        visibility: hidden;
        max-height: none !important;
        padding: 0 0 env(safe-area-inset-bottom, 0) 0 !important;
        margin: 0 !important;
        border: none !important;
    }
    
    #header-nav.mobile-overlay-visible {
        transform: translateX(0) !important;
        visibility: visible !important;
    }
    
    body.mobile-overlay-open {
        overflow: hidden !important;
    }
    
    /* Overlay close button */
    .overlay-close {
        position: absolute;
        top: 16px;
        right: 16px;
        background: rgba(255, 255, 255, 0.1);
        border: none;
        border-radius: 50%;
        width: 36px;
        height: 36px;
        color: #fff;
        font-size: 18px;
        cursor: pointer;
        z-index: 10;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: background 0.2s ease;
    }
    
    .overlay-close:hover,
    .overlay-close:active {
        background: rgba(255, 255, 255, 0.2);
    }
    
    /* Hide header mobile language selector when overlay is open */
    body.mobile-overlay-open #header .header-column .d-block.d-sm-none {
        visibility: hidden !important;
        pointer-events: none !important;
    }
    
    /* Hide "Menu" text label */
    .menu-show {
        display: none !important;
    }
    
    /* Menu items in overlay */
    #header-nav .navbar-nav {
        padding: 70px 24px 120px !important;
        margin: 0 !important;
        display: block !important;
    }
    
    #header-nav .navbar-nav > li {
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        list-style: none;
    }
    
    #header-nav .navbar-nav > li > a {
        color: #fff !important;
        font-size: 17px !important;
        font-weight: 500 !important;
        padding: 14px 0 !important;
        height: auto !important;
        line-height: 1.5 !important;
        display: block !important;
    }
    
    #header-nav .navbar-nav > li > a:hover,
    #header-nav .navbar-nav > li > a:active {
        color: #4db6ac !important;
    }
    
    /* Dropdown indicator - pill badge instead of tiny caret */
    #header-nav .dropdown-toggle::after {
        display: none !important;
    }
    
    #header-nav .navbar-nav > li.dropdown:not(.d-sm-block) > a.dropdown-toggle {
        display: flex !important;
        align-items: center;
        justify-content: space-between;
    }
    
    #header-nav .navbar-nav > li.dropdown:not(.d-sm-block) > a.dropdown-toggle::before {
        content: '';
        order: 2;
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.08);
        flex-shrink: 0;
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='rgba(255,255,255,0.6)' viewBox='0 0 16 16'%3E%3Cpath d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
        background-repeat: no-repeat;
        background-position: center;
        transition: transform 0.25s ease, background-color 0.25s ease;
    }
    
    #header-nav .dropdown.mobile-open > a.dropdown-toggle::before {
        transform: rotate(180deg);
        background-color: rgba(0, 150, 136, 0.3);
    }
    
    /* Dropdown sub-items - hidden by default */
    /* jQuery slideToggle handles show/hide, so we just style the look */
    #header-nav .navbar-nav > li.dropdown:not(.d-sm-block) > .dropdown-menu {
        position: static !important;
        float: none !important;
        width: 100% !important;
        background: rgba(255, 255, 255, 0.04) !important;
        border: none !important;
        box-shadow: none !important;
        padding: 4px 0 4px 16px !important;
        margin: 0 0 4px 0 !important;
        transform: none !important;
        opacity: 1 !important;
        border-radius: 8px !important;
        /* display is controlled by jQuery slideToggle */
    }
    
    #header-nav .dropdown-item {
        color: rgba(255, 255, 255, 0.75) !important;
        font-size: 15px !important;
        padding: 10px 12px !important;
        background: transparent !important;
        border-radius: 6px !important;
    }
    
    #header-nav .dropdown-item:hover,
    #header-nav .dropdown-item:active {
        color: #4db6ac !important;
        background: rgba(77, 182, 172, 0.08) !important;
    }
    
    /* Enhanced hamburger button */
    .navbar-toggler {
        width: 30px;
        height: 24px;
        padding: 0 !important;
        border: none !important;
        position: relative;
        z-index: 9999;
        background: transparent !important;
        outline: none !important;
    }
    
    .navbar-toggler span {
        background: #fff;
        height: 2px;
        width: 100%;
        display: block;
        margin: 5px 0;
        transition: all 0.3s ease;
        border-radius: 2px;
    }
    
    .navbar-toggler.open span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .navbar-toggler.open span:nth-child(2) {
        opacity: 0;
    }
    
    .navbar-toggler.open span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    /* Hide language selector in overlay - already available in header */
    #header-nav .navbar-nav > li.dropdown.d-sm-block {
        display: none !important;
    }
}

/* Hide close button on desktop */
@media (min-width: 992px) {
    .overlay-close {
        display: none !important;
    }
}

/* Secondary nav - no custom overrides, keep original styling */