/* Enhanced Horizontal Dropdown Menu for HealthSciences Theme */

/* Main navigation container - inherit existing styles from custom.css */
/* .navigation-section styles are defined in custom.css with #10BCC8 background */

/* Navigation bar */
.navigation-section .navbar {
    padding: 0;
}

/* Nav items container */
.navigation-section .navbar-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 0;
}

/* Individual nav items */
.navigation-section .navbar-nav .nav-item {
    position: static; /* Important for horizontal dropdown positioning */
    list-style: none;
}

/* Make has-submenu items position relative for bridge positioning */
.navigation-section .navbar-nav .nav-item.has-submenu,
.navigation-section .navbar-nav .nav-item.dropdown {
    position: relative;
}

/* Nav links - inherit color from custom.css, only add missing styles */
.navigation-section .navbar-nav .nav-link {
    /* Color and padding are defined in custom.css */
    display: block;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: color 0.3s ease, background-color 0.3s ease;
}

/* Hover styles are defined in custom.css */

/* Dropdown toggle arrow */
.navigation-section .nav-link.dropdown-toggle::after {
    display: inline-block;
    margin-left: 0.3em;
    vertical-align: 0.255em;
    content: "";
    border-top: 0.3em solid;
    border-right: 0.3em solid transparent;
    border-bottom: 0;
    border-left: 0.3em solid transparent;
}

/* Horizontal dropdown menu - Hidden by default */
.navigation-section .dropdown-menu.horizontal-menu {
    /* Initial state - hidden */
    display: none;
    opacity: 0;
    visibility: hidden;
    
    /* Positioning - directly attached to nav without gap */
    position: absolute !important;
    top: calc(100% - 1px); /* Slight overlap to prevent gap */
    left: 0;
    right: 0;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    
    /* Styling */
    background: #10BCC8;
    border: none;
    border-radius: 0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    
    /* Size */
    min-height: 60px;
    padding: 15px 0;
    
    /* Animation */
    transition: opacity 0.3s ease, visibility 0.3s ease;
    
    /* High z-index to appear above content */
    z-index: 9999;
}

/* Create invisible bridge to prevent menu from disappearing */
.navigation-section .nav-item.has-submenu::after,
.navigation-section .nav-item.dropdown::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    height: 20px; /* Bridge height */
    display: none;
    z-index: 9998;
}

.navigation-section .nav-item.has-submenu:hover::after,
.navigation-section .nav-item.dropdown:hover::after {
    display: block;
}

/* Show dropdown with active class (controlled by JS) */
.navigation-section .dropdown-menu.horizontal-menu.horizontal-active {
    display: block !important;
    opacity: 1 !important;
    visibility: visible !important;
}

/* Fallback: Show dropdown on hover (CSS only) */
@media (min-width: 992px) {
    .navigation-section .nav-item.has-submenu:hover > .dropdown-menu.horizontal-menu,
    .navigation-section .nav-item.dropdown:hover > .dropdown-menu.horizontal-menu {
        display: block;
        opacity: 1;
        visibility: visible;
    }
}

/* Inner container for dropdown items */
.navigation-section .dropdown-menu.horizontal-menu .dropdown-inner {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: 0;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Dropdown items */
.navigation-section .dropdown-menu.horizontal-menu .dropdown-item {
    display: inline-flex;
    align-items: center;
    padding: 12px 25px;
    color: #fff;
    text-decoration: none;
    font-size: 15px;
    font-weight: 400;
    white-space: nowrap;
    border-right: 1px solid rgba(255,255,255,0.15);
    transition: all 0.3s ease;
    background: transparent;
}

/* Remove border from last item */
.navigation-section .dropdown-menu.horizontal-menu .dropdown-item:last-child {
    border-right: none;
}

/* Hover state for dropdown items */
.navigation-section .dropdown-menu.horizontal-menu .dropdown-item:hover,
.navigation-section .dropdown-menu.horizontal-menu .dropdown-item:focus {
    background-color: rgba(255,255,255,0.1);
    color: #fff;
    text-decoration: none;
    transform: translateY(-2px);
}

/* Active dropdown item */
.navigation-section .dropdown-menu.horizontal-menu .dropdown-item.active {
    background-color: rgba(255,255,255,0.15);
    color: #fff;
}

/* Remove Bootstrap's default show class display */
.navigation-section .dropdown-menu.show {
    display: none;
}

/* Only show when hovering */
.navigation-section .nav-item:hover > .dropdown-menu.horizontal-menu.show {
    display: block;
    opacity: 1;
    visibility: visible;
}

/* Mobile/Tablet styles */
@media (max-width: 991px) {
    /* Convert to vertical menu on mobile */
    .navigation-section .dropdown-menu.horizontal-menu {
        position: static !important;
        width: 100%;
        margin-left: 0;
        background: #10BCC8;
        display: none;
        opacity: 1;
        visibility: visible;
        padding: 0;
        box-shadow: none;
    }
    
    /* Show on click for mobile */
    .navigation-section .nav-item.show > .dropdown-menu.horizontal-menu {
        display: block !important;
    }
    
    /* Vertical layout for mobile */
    .navigation-section .dropdown-menu.horizontal-menu .dropdown-inner {
        flex-direction: column;
        padding: 0;
    }
    
    /* Mobile dropdown items */
    .navigation-section .dropdown-menu.horizontal-menu .dropdown-item {
        display: block;
        width: 100%;
        padding: 12px 40px;
        border-right: none;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    .navigation-section .dropdown-menu.horizontal-menu .dropdown-item:last-child {
        border-bottom: none;
    }
    
    /* Disable hover on mobile */
    .navigation-section .nav-item.has-submenu:hover > .dropdown-menu.horizontal-menu,
    .navigation-section .nav-item.dropdown:hover > .dropdown-menu.horizontal-menu {
        display: none;
    }
}

/* Accessibility improvements */
.navigation-section .nav-link:focus {
    outline: 2px solid #10BCC8;
    outline-offset: 2px;
}

.navigation-section .dropdown-item:focus {
    outline: 2px solid #fff;
    outline-offset: -2px;
}

/* Prevent layout shift when dropdown opens */
.navigation-section {
    min-height: 52px; /* Adjust based on your nav height */
}

/* Fix for Bootstrap conflicts */
.navigation-section .dropdown-menu[style] {
    /* Remove inline styles that Bootstrap might add */
    position: absolute !important;
    transform: none !important;
    inset: auto !important;
}