/* CSS Custom Properties */
:root {
    --vanilla-nav-primary-color: rgba(0, 61, 124);
    --vanilla-nav-accent-color: #EF7C00;
    --vanilla-nav-white: #ffffff;
    --vanilla-nav-black: #141414;
    --vanilla-nav-text-light: rgba(255, 255, 255, 0.9);
    --vanilla-nav-border-color: rgba(255, 255, 255, 0.2);

    --vanilla-nav-container-max-width: 1140px;
    --vanilla-nav-mobile-height: 60px;
    --vanilla-nav-desktop-height: 60px;
    --vanilla-nav-transition: 300ms ease;
    --vanilla-nav-touch-target: 44px;
    --vanilla-nav-border-radius: 4px;
    --vanilla-nav-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Reset and Base Styles */
.vanilla-secondary-nav,
.vanilla-secondary-nav *,
.vanilla-secondary-nav *::before,
.vanilla-secondary-nav *::after {
    box-sizing: border-box;
}

/* MOBILE-FIRST BASE STYLES */
.vanilla-secondary-nav {
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    background: var(--vanilla-nav-primary-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    font-family: inherit;
    line-height: 1.5;
    overflow: visible;
}

/* Container - Max width 1140px, centered */
.vanilla-nav-container {
    max-width: var(--vanilla-nav-container-max-width);
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    overflow: visible;
}

/* Mobile Navigation Toggle */
.vanilla-nav-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    height: var(--vanilla-nav-mobile-height);
    background: var(--vanilla-nav-primary-color);
    border: none;
    color: var(--vanilla-nav-white);
    font-size: 0.9rem;
    cursor: pointer;
    padding: 0 20px;
    transition: background-color var(--vanilla-nav-transition);
    border-bottom: 1px solid var(--vanilla-nav-border-color);
}

.vanilla-nav-toggle:hover,
.vanilla-nav-toggle:focus {
    background: rgba(255, 255, 255, 0.1);
    outline: 2px solid var(--vanilla-nav-accent-color);
    outline-offset: -2px;
}

.vanilla-nav-toggle-text {
    font-weight: 400;
}

.vanilla-nav-toggle-icon {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
}

.vanilla-nav-hamburger-line {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--vanilla-nav-white);
    transition: all var(--vanilla-nav-transition);
    border-radius: 1px;
}

/* Mobile Menu Animation States */
.vanilla-secondary-nav.menu-open .vanilla-nav-hamburger-line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.vanilla-secondary-nav.menu-open .vanilla-nav-hamburger-line:nth-child(2) {
    opacity: 0;
}

.vanilla-secondary-nav.menu-open .vanilla-nav-hamburger-line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Menu Content - HIDDEN BY DEFAULT */
.vanilla-nav-scroll-container {
    display: none;
    position: fixed;
    top: var(--vanilla-nav-mobile-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--vanilla-nav-primary-color);
    overflow-y: auto;
    z-index: 999;
}

.vanilla-secondary-nav.menu-open .vanilla-nav-scroll-container {
    display: block;
}

.vanilla-nav-list {
    list-style: none;
    margin: 0;
    padding: 1rem 0;
    display: flex;
    flex-direction: column;
}

.vanilla-nav-item {
    border-bottom: 1px solid var(--vanilla-nav-border-color);
}

.vanilla-nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    color: var(--vanilla-nav-text-light);
    text-decoration: none;
    background: transparent;
    border: none;
    width: 100%;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--vanilla-nav-transition);
    min-height: var(--vanilla-nav-touch-target);
}

.vanilla-nav-link:hover,
.vanilla-nav-link:focus {
    color: var(--vanilla-nav-white);
    outline: 2px solid var(--vanilla-nav-accent-color);
    outline-offset: -2px;
}

.vanilla-nav-link-text {
    font-weight: 400;
}

.vanilla-nav-dropdown-arrow {
    font-size: 0.8rem;
    transition: transform var(--vanilla-nav-transition);
}

.vanilla-nav-item.expanded .vanilla-nav-dropdown-arrow {
    transform: rotate(180deg);
}

/* Mobile Mega Menu */
.vanilla-nav-mega-menu {
    display: none;
    background: var(--vanilla-nav-primary-color);
    margin: 0;
    padding: 0;
}

.vanilla-nav-item.expanded .vanilla-nav-mega-menu {
    display: block;
}

.vanilla-nav-mega-content {
    padding: 0;
}

.vanilla-nav-mega-grid {
    display: flex;
    flex-direction: column;
}

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

.vanilla-nav-mega-item:last-child {
    border-bottom: none;
}

.vanilla-nav-mega-link {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--vanilla-nav-text-light);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all var(--vanilla-nav-transition);
    min-height: var(--vanilla-nav-touch-target);
}

.vanilla-nav-mega-link:hover,
.vanilla-nav-mega-link:focus {
    color: var(--vanilla-nav-white);
    background: rgba(255, 255, 255, 0.1);
    padding-left: 1.5rem;
}

/* Mobile Scroll Arrows - HIDDEN ON MOBILE */
.vanilla-nav-scroll-arrow {
    display: none;
}

/* Mobile Overlay */
.vanilla-nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
}

.vanilla-secondary-nav.menu-open .vanilla-nav-overlay {
    display: block;
}

/* Empty State */
.vanilla-secondary-nav-empty {
    background: var(--vanilla-nav-primary-color);
    color: var(--vanilla-nav-text-light);
    padding: 1rem 0;
    text-align: center;
}

/* TABLET STYLES */
@media (min-width: 768px) {

    .vanilla-nav-container {
        padding: 0 32px;
    }

    .vanilla-nav-toggle-text {
        font-size: 1.1rem;
    }

    .vanilla-nav-mega-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 0;
    }

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

/* DESKTOP STYLES */
@media (min-width: 1024px) {
    .vanilla-nav-link {
        padding: 1rem 0;
    }

    /* Hide mobile toggle on desktop */
    .vanilla-nav-toggle {
        display: none;
    }

    .vanilla-secondary-nav {
        height: var(--vanilla-nav-desktop-height);
    }

    /* Desktop Navigation Layout */
    .vanilla-nav-scroll-container {
        display: block !important;
        position: relative;
        background: transparent;
        overflow-x: auto;
        overflow-y: visible;
        height: var(--vanilla-nav-desktop-height);
        scroll-behavior: smooth;
        scrollbar-width: none;
        -ms-overflow-style: none;
        top: auto;
        left: auto;
        right: auto;
        bottom: auto;
    }

    .vanilla-nav-scroll-container::-webkit-scrollbar {
        display: none;
    }

    /* Add gradient fade effect when content overflows */
    .vanilla-nav-container.has-overflow {
        position: relative;
    }

    .vanilla-nav-container.has-overflow::before,
    .vanilla-nav-container.has-overflow::after {
        content: '';
        position: absolute;
        top: 0;
        bottom: 0;
        width: 40px;
        z-index: 5;
        pointer-events: none;
    }

    .vanilla-nav-container.has-overflow::before {
        left: 0;
        background: linear-gradient(to right, var(--vanilla-nav-primary-color), transparent);
    }

    .vanilla-nav-container.has-overflow::after {
        right: 0;
        background: linear-gradient(to left, var(--vanilla-nav-primary-color), transparent);
    }

    /* Hide gradients when at start or end */
    .vanilla-nav-container.has-overflow.at-start::before {
        display: none;
    }

    .vanilla-nav-container.has-overflow.at-end::after {
        display: none;
    }

    .vanilla-nav-list {
        flex-direction: row;
        align-items: center;
        height: var(--vanilla-nav-desktop-height);
        padding: 0;
        margin: 0;
        white-space: nowrap;
        min-width: max-content;
    }

    .vanilla-nav-item {
        border-bottom: none;
        position: relative;
        flex-shrink: 0;
    }

    .vanilla-nav-link {
        padding: 0 1.5rem;
        height: var(--vanilla-nav-desktop-height);
        border-radius: 0;
        min-height: auto;
        font-weight: 400;
    }

    .vanilla-nav-link:hover,
    .vanilla-nav-link:focus {
        color: var(--vanilla-nav-accent-color);
        outline: none;
    }

    .vanilla-nav-dropdown-arrow {
        margin-left: 0.5rem;
        font-size: 0.7rem;
    }

    /* Desktop Mega Menu */
    .vanilla-nav-mega-menu {
        position: fixed;
        top: 0; /* Will be set dynamically by JavaScript */
        left: 0;
        right: 0;
        /*width: 100vw;*/
        background: rgba(0, 61, 124, 0.95);
        box-shadow: var(--vanilla-nav-shadow);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: opacity 200ms ease, visibility 200ms ease, transform 200ms ease;
        z-index: 9999;
        pointer-events: none;
    }

    .vanilla-nav-mega-menu.show {
        display: block !important;
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        pointer-events: auto;
    }

    .vanilla-nav-mega-content {
        max-width: var(--vanilla-nav-container-max-width);
        margin: 0 auto;
        padding: 2rem 32px;
    }

    .vanilla-nav-mega-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

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

    .vanilla-nav-mega-link {
        display: block;
        padding: 0.5rem 0;
        color: var(--vanilla-nav-white);
        font-size: 0.9rem;
        min-height: auto;
        transition: color var(--vanilla-nav-transition);
    }

    .vanilla-nav-mega-link:hover,
    .vanilla-nav-mega-link:focus {
        color: var(--vanilla-nav-accent-color);
        background: transparent;
        padding-left: 0;
    }

    /* Scroll Arrows */
    .vanilla-nav-scroll-arrow {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        width: 40px;
        height: 40px;
        background: rgba(0, 61, 124, 0.9);
        border: none;
        color: var(--vanilla-nav-white);
        cursor: pointer;
        transition: all var(--vanilla-nav-transition);
        z-index: 1000;
        display: none;
    }

    .vanilla-nav-scroll-arrow:hover {
        background: rgba(0, 61, 124, 0.7);
        transform: translateY(-50%) scale(1.1);
    }

    .vanilla-nav-scroll-left {
        left: 0;
    }

    .vanilla-nav-scroll-right {
        right: 0;
    }

    .vanilla-nav-arrow-icon {
        font-size: 1.2rem;
        font-weight: bold;
    }

    /* Show arrows when content overflows */
    .vanilla-nav-container.has-overflow .vanilla-nav-scroll-arrow {
        display: block !important;
    }

    .vanilla-nav-container.has-overflow.at-start .vanilla-nav-scroll-left {
        display: none !important;
    }

    .vanilla-nav-container.has-overflow.at-end .vanilla-nav-scroll-right {
        display: none !important;
    }

    /* Debug: temporary visible arrows to test positioning */
    .vanilla-nav-container.debug-overflow .vanilla-nav-scroll-arrow {
        display: block !important;
        background: rgba(0, 61, 124, 0.7) !important;
    }

    /* Center navigation when it fits */
    .vanilla-nav-container:not(.has-overflow) .vanilla-nav-list {
        justify-content: center;
        margin: 0 auto;
        padding-left: 0;
        padding-right: 0;
        width: fit-content;
    }

    /* Hide overlay on desktop */
    .vanilla-nav-overlay {
        display: none !important;
    }
}

/* LARGE DESKTOP */
@media (min-width: 1440px) {
    .vanilla-nav-container {
        padding: 0;
    }

    .vanilla-nav-mega-content {
        padding: 2.5rem 40px;
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }

    .vanilla-nav-mega-grid {
        gap: .2rem;
    }
}

/* ACCESSIBILITY AND PREFERENCES */
/* High Contrast */
@media (prefers-contrast: high) {
    .vanilla-secondary-nav {
        border-bottom: 2px solid var(--vanilla-nav-white);
    }

    .vanilla-nav-link:hover,
    .vanilla-nav-link:focus {
        outline: 3px solid var(--vanilla-nav-accent-color);
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .vanilla-secondary-nav *,
    .vanilla-secondary-nav *::before,
    .vanilla-secondary-nav *::after {
        transition: none !important;
        animation: none !important;
    }
}

/* Focus Styles for Better Accessibility */
.vanilla-nav-link:focus,
.vanilla-nav-mega-link:focus,
.vanilla-nav-toggle:focus,
.vanilla-nav-scroll-arrow:focus {
    outline: 2px solid var(--vanilla-nav-accent-color);
    outline-offset: 2px;
}

/* Body scroll lock when mobile menu is open */
body.vanilla-nav-menu-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
}