/* Navigation Panel Styles for WordPress Portfolio Theme */

/* Menu Toggle Button */
.menu-toggle {
    background: none;
    border: none;
    color: var(--color-text);
    cursor: pointer;
    padding: var(--spacing-xs);
    position: relative;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-default);
    z-index: var(--z-header);
}

.menu-toggle:hover {
    transform: scale(1.1);
}

.menu-toggle:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    border-radius: 2px;
}

/* Hamburger Icon */
.menu-icon {
    display: block;
    width: 24px;
    height: 2px;
    background: currentColor;
    position: relative;
    transition: background var(--transition-default);
}

.menu-icon::before,
.menu-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: currentColor;
    left: 0;
    transition: transform var(--transition-default);
}

.menu-icon::before {
    transform: translateY(-8px);
}

.menu-icon::after {
    transform: translateY(8px);
}

/* Animated X when menu is open */
.menu-toggle[aria-expanded="true"] .menu-icon {
    background: transparent;
}

.menu-toggle[aria-expanded="true"] .menu-icon::before {
    transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-icon::after {
    transform: rotate(-45deg);
}

/* Navigation Overlay */
.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-menu) - 1);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-default);
    backdrop-filter: blur(2px);
}

.nav-overlay.is-active {
    opacity: 1;
    pointer-events: auto;
}

/* Navigation Panel */
.site-navigation {
    position: fixed;
    top: 0;
    right: 0;
    width: min(400px, 100%);
    height: 100vh;
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(10px);
    z-index: var(--z-menu);
    transform: translateX(100%);
    transition: transform var(--transition-default);
    overflow-y: auto;
    overscroll-behavior: contain;
    will-change: transform;
    -webkit-overflow-scrolling: touch;
}

.site-navigation.is-open {
    transform: translateX(0);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3);
}

/* Navigation Header */
.nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--spacing-lg);
    position: sticky;
    top: 0;
    background: rgba(10, 10, 10, 0.98);
    z-index: 10;
}

.nav-header-title {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    color: var(--color-text);
    font-family: var(--font-heading);
}

/* Close Button */
.nav-close {
    background: none;
    border: none;
    color: var(--color-text);
    cursor: pointer;
    padding: var(--spacing-xs);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-default);
    position: relative;
    border-radius: 4px;
}

.nav-close:hover,
.nav-close:focus {
    transform: rotate(90deg);
    background: rgba(255, 255, 255, 0.1);
}

.nav-close:active {
    transform: rotate(90deg) scale(0.9);
}

.nav-close:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.nav-close-icon {
    display: block;
    width: 24px;
    height: 24px;
    position: relative;
}

.nav-close-icon::before,
.nav-close-icon::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: currentColor;
    left: 0;
    top: 50%;
}

.nav-close-icon::before {
    transform: rotate(45deg);
}

.nav-close-icon::after {
    transform: rotate(-45deg);
}

/* Navigation Container */
.nav-container {
    padding: 0 var(--spacing-lg) var(--spacing-xl);
}

/* Navigation Sections */
.nav-section {
    margin-bottom: var(--spacing-xl);
}

.nav-section:last-child {
    margin-bottom: 0;
}

.nav-title {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    font-family: var(--font-heading);
}

/* Navigation List */
.nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-item {
    border-bottom: 1px solid var(--color-border);
    margin: 0;
    padding: 0;
}

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

/* Navigation Links */
.nav-link {
    display: block;
    padding: var(--spacing-sm) 0;
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.875rem;
    transition: all var(--transition-default);
    position: relative;
    padding-left: 0;
    min-height: var(--min-touch-target);
    display: flex;
    align-items: center;
}

.nav-link:hover,
.nav-link:focus {
    padding-left: var(--spacing-md);
    color: var(--color-accent);
}

.nav-link:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Current Page Indicator */
.nav-item.current-menu-item .nav-link,
.nav-item.current_page_item .nav-link {
    color: var(--color-accent);
    font-weight: 600;
}


/* WordPress Sub-menu Support */
.nav-list .sub-menu {
    list-style: none;
    padding: 0;
    margin: 0 0 0 var(--spacing-md);
}

.nav-list .sub-menu .nav-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-list .sub-menu .nav-link {
    font-size: 0.813rem;
    color: var(--color-text-muted);
}

.nav-list .sub-menu .nav-link:hover,
.nav-list .sub-menu .nav-link:focus {
    color: var(--color-text);
}

/* Mobile Swipe Indicator */
@media (max-width: 768px) {
    .nav-header::after {
        content: '';
        position: absolute;
        left: 4px;
        top: 50%;
        transform: translateY(-50%);
        width: 4px;
        height: 40px;
        background: var(--color-border);
        border-radius: 2px;
        opacity: 0;
        animation: swipeHint 2s ease-in-out 0.5s;
    }

    .site-navigation.is-open .nav-header::after {
        animation: swipeHint 2s ease-in-out 0.5s;
    }
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .site-navigation {
        width: 100%;
    }

    .nav-link {
        padding: var(--spacing-sm) 0;
        min-height: 48px;
    }

    .nav-close,
    .menu-toggle {
        min-width: 48px;
        min-height: 48px;
    }
}

/* Tablet Adjustments */
@media (min-width: 769px) and (max-width: 1024px) {
    .site-navigation {
        width: min(350px, 40%);
    }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
    .nav-close:active {
        background: rgba(255, 255, 255, 0.2);
        transform: scale(0.95);
    }

    .nav-link {
        min-height: 48px;
        padding: var(--spacing-md) 0;
    }

    .nav-link:active {
        background: rgba(255, 255, 255, 0.05);
        padding-left: var(--spacing-sm);
    }
}

/* WordPress Admin Bar Compatibility */
.admin-bar .site-navigation {
    top: 32px;
    height: calc(100vh - 32px);
}

@media screen and (max-width: 782px) {
    .admin-bar .site-navigation {
        top: 46px;
        height: calc(100vh - 46px);
    }
}

/* iOS Safari Compatibility */
@supports (-webkit-touch-callout: none) {
    .site-navigation {
        -webkit-overflow-scrolling: touch;
    }
    
    .nav-overlay,
    .nav-close,
    .menu-toggle {
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .site-navigation,
    .nav-overlay,
    .menu-icon,
    .menu-icon::before,
    .menu-icon::after,
    .nav-link,
    .nav-close {
        transition: none;
    }

    @keyframes swipeHint {
        from, to {
            opacity: 0;
        }
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {

    .nav-link:hover,
    .nav-link:focus {
        background: var(--color-text);
        color: var(--color-bg);
        padding-left: var(--spacing-sm);
    }

    .nav-close:hover,
    .nav-close:focus {
        background: var(--color-text);
        color: var(--color-bg);
    }
}

/* Print Styles */
@media print {
    .menu-toggle,
    .site-navigation,
    .nav-overlay {
        display: none !important;
    }
}