/* Premium Mobile Navigation - CSS Custom Properties */
:root {
    --mobile-menu-bg: rgba(255, 255, 255, 0.98);
    --mobile-menu-backdrop: rgba(255, 255, 255, 0.15);
    --mobile-menu-border: rgba(255, 255, 255, 0.2);
    --mobile-menu-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    --mobile-menu-radius: 16px;
    --mobile-item-bg: rgba(102, 126, 234, 0.08);
    --mobile-item-hover: linear-gradient(135deg, #667eea, #764ba2);
    --mobile-transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --mobile-scale-active: 0.98;
    --touch-target: 48px;
    
    /* Search Results Variables */
    --background-color: #ffffff;
    --border-color: #e5e7eb;
    --text-color: #1f2937;
    --text-secondary: #6b7280;
    --accent-color: #667eea;
    --hover-color: #f3f4f6;
}

/* Ensure navbar has proper stacking context and premium styling */
.main-nav {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    box-shadow: 
        0 4px 20px rgba(0, 0, 0, 0.1),
        0 1px 0 rgba(255, 255, 255, 0.1) inset !important;
    position: sticky;
    top: 0;
    z-index: 1000;
    margin-bottom: 0rem;
    isolation: isolate; /* Create new stacking context */
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    position: relative; /* Ensure proper positioning context */
    min-height: 64px; /* Consistent header height */
}

.nav-logo a {
    font-size: 1.8rem;
    font-weight: bold;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.nav-logo a:hover {
    transform: scale(1.05);
    color: #ffd700;
}

/* Search Functionality - Override original input styles */
.main-nav .nav-search {
    position: relative;
    flex: 1;
    max-width: 400px;
}

.main-nav .search-input {
    width: 100% !important;
    padding: 0.75rem 1rem !important;
    border: none !important;
    border-radius: 50px !important;
    background: rgba(255,255,255,0.9) !important;
    backdrop-filter: blur(10px);
    font-size: 1rem !important;
    transition: all 0.3s ease !important;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1) !important;
}

.main-nav .search-input:focus {
    outline: none !important;
    background: white !important;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2) !important;
    transform: translateY(-2px);
    border-color: transparent !important;
}

.main-nav .search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--background-color, #ffffff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    z-index: 1000;
    max-height: 400px;
    overflow-y: auto;
    margin-top: 8px;
    display: none;
}

.main-nav .search-results-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.main-nav .search-results-list li {
    border-bottom: 1px solid var(--border-color, #e5e7eb);
}

.main-nav .search-results-list li:last-child {
    border-bottom: none;
}

.main-nav .search-results-list a {
    display: block;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--text-color, #1f2937);
    transition: background-color 0.2s ease;
}

.main-nav .search-results-list a:hover {
    background-color: var(--hover-color, #f3f4f6);
}

.main-nav .result-title {
    font-weight: 600;
    margin-bottom: 4px;
}

.main-nav .result-description {
    font-size: 0.875rem;
    color: var(--text-secondary, #6b7280);
}

.main-nav .no-results {
    padding: 16px;
    text-align: center;
    color: var(--text-secondary, #6b7280);
}

/* Navigation Links - Override original styles */
.main-nav .nav-links {
    display: flex;
    gap: 1rem;
    list-style: none;
    align-items: center;
}

.main-nav .nav-links a {
    color: white !important;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
}

/* Remove original underline effect */
.main-nav .nav-links a::after {
    display: none !important;
}

.main-nav .nav-links a:hover {
    background: rgba(255,255,255,0.2) !important;
    transform: translateY(-2px);
    color: white !important;
}

/* Special styling for category main links */
.main-nav .category-main-link {
    font-weight: 600 !important;
    text-transform: capitalize;
}

.main-nav .home-link {
    background: rgba(255,255,255,0.2) !important;
    font-weight: 600 !important;
}

.main-nav .home-link:hover {
    background: rgba(255,255,255,0.3) !important;
}

/* Breadcrumbs removed */

/* Premium Mobile Menu Button - Senior UX/UI Level */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 3px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    cursor: pointer;
    padding: 10px;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    width: 44px;
    height: 44px;
    position: relative;
    z-index: 1002;
    box-shadow: 
        0 4px 12px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.mobile-menu-btn span {
    display: block;
    width: 20px;
    height: 2px;
    background-color: white;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    border-radius: 2px;
    transform-origin: center;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    pointer-events: none;
}

/* Hover states */
.mobile-menu-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-1px);
    box-shadow: 
        0 6px 16px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.mobile-menu-btn:active {
    transform: translateY(0) scale(0.95);
    transition: all 0.1s ease;
}

/* Premium hamburger to X animation */
.mobile-menu-btn.active {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
    width: 18px;
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
    transform: scale(0) rotate(180deg);
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
    width: 18px;
}

/* Focus states for accessibility */
.mobile-menu-btn:focus {
    outline: none;
    box-shadow: 
        0 0 0 3px rgba(255, 255, 255, 0.3),
        0 4px 12px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

/* Mobile Responsive - Senior UX/UI Level Design */
@media (max-width: 768px) {
    .nav-container {
        flex-wrap: wrap;
        gap: 1rem;
        position: relative;
        padding: 1rem 1rem;
    }
    
    .main-nav .nav-search {
        order: 3;
        flex-basis: 100%;
        max-width: 100%;
        margin-top: 0.5rem;
    }
    
    .main-nav .search-input {
        font-size: 16px !important;
        padding: 0.75rem 1rem !important;
        border-radius: 12px !important;
		max-width:100% !important;
    }
    
    .mobile-menu-btn {
        display: flex !important;
        order: 2;
        margin-left: auto;
        z-index: 1002;
    }

    /* Professional Mobile Menu Dropdown */
    .main-nav .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: var(--mobile-menu-bg);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 1.5rem;
        padding: 2rem;
        transition: right 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        z-index: 1001;
        visibility: hidden;
        opacity: 0;
    }

    .main-nav .nav-links.active {
        right: 0;
        visibility: visible;
        opacity: 1;
    }
    
    .main-nav .nav-links li {
        width: 100%;
        text-align: center;
        opacity: 0;
        transform: translateY(20px);
        transition: opacity 0.3s ease, transform 0.3s ease;
    }

    .main-nav .nav-links.active li {
        opacity: 1;
        transform: translateY(0);
    }

    .main-nav .nav-links li:nth-child(1) { transition-delay: 0.1s; }
    .main-nav .nav-links li:nth-child(2) { transition-delay: 0.15s; }
    .main-nav .nav-links li:nth-child(3) { transition-delay: 0.2s; }
    .main-nav .nav-links li:nth-child(4) { transition-delay: 0.25s; }
    .main-nav .nav-links li:nth-child(5) { transition-delay: 0.3s; }
    .main-nav .nav-links li:nth-child(6) { transition-delay: 0.35s; }
    .main-nav .nav-links li:nth-child(7) { transition-delay: 0.4s; }
    
    /* Premium Mobile Menu Items */
    .main-nav .nav-links a {
        display: block;
        padding: 1rem;
        font-size: 1.2rem;
        color: var(--text-color) !important;
        background: var(--mobile-item-bg);
        border-radius: 12px;
        transition: all 0.2s ease;
        will-change: transform;
    }

    /* Hover and Active States */
    .main-nav .nav-links a:hover {
        background: var(--mobile-item-hover);
        color: white !important;
        transform: translateY(-2px);
    }

    .main-nav .nav-links a:active {
        transform: scale(var(--mobile-scale-active));
    }

    /* Menu overlay */
    .main-nav .nav-links::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.1);
        z-index: -1;
        backdrop-filter: blur(2px);
        opacity: 0;
        transition: opacity 0.3s ease;
    }

    .main-nav .nav-links.active::before {
        opacity: 1;
    }
}

/* Remove conflicting styles */
@media (max-width: 768px) {
    .main-nav .nav-links {
        position: fixed !important;
        display: flex !important;
        top: 0 !important;
        left: 0 !important;
        right: -100% !important;
        width: 100% !important;
        height: 100vh !important;
        max-width: none !important;
        min-width: auto !important;
        transform: none !important;
        transform-origin: none !important;
        margin: 0 !important;
        padding: 2rem !important;
        box-sizing: border-box !important;
        overflow: hidden !important;
        background: var(--mobile-menu-bg) !important;
        backdrop-filter: blur(10px) !important;
        -webkit-backdrop-filter: blur(10px) !important;
        border-radius: 0 !important;
        z-index: 1001 !important;
    }
    
    .main-nav .nav-links.active {
        right: 0 !important;
        transform: none !important;
    }
}

/* Extra small devices (phones in portrait) */
@media (max-width: 480px) {
    .nav-container {
        padding: 0.75rem 0.75rem;
        gap: 0.75rem;
    }
    
    .nav-logo a {
        font-size: 1.4rem;
    }
    
    .main-nav .nav-links {
        left: 0.75rem;
        right: 0.75rem;
        padding: 0.75rem;
        min-width: 260px;
    }
    
    .main-nav .nav-links a {
        padding: 0.875rem 1rem !important;
        font-size: 0.9rem !important;
        min-height: 44px;
    }
    
    .main-nav .search-input {
        font-size: 16px !important;
        padding: 0.625rem 0.875rem !important;
    }
}

/* Landscape orientation adjustments */
@media (max-width: 768px) and (orientation: landscape) {
    .main-nav .nav-links {
        max-height: calc(100vh - 120px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .main-nav .nav-links a {
        padding: 0.75rem 1.25rem !important;
        min-height: 40px;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 1rem;
    }
    
    .nav-logo a {
        font-size: 1.4rem;
    }
    
    .search-input {
        font-size: 0.9rem;
    }
}

/* Search Results Styling */
.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--background-color, #ffffff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    z-index: 1000;
    max-height: 400px;
    overflow-y: auto;
    margin-top: 8px;
    display: none;
}

.search-results-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.search-results-list li {
    border-bottom: 1px solid var(--border-color, #e5e7eb);
}

.search-results-list li:last-child {
    border-bottom: none;
}

.search-results-list a {
    display: block;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--text-color, #1f2937);
    transition: background-color 0.2s ease;
}

.search-results-list a:hover {
    background-color: var(--hover-color, #f3f4f6);
}

.result-title {
    font-weight: 600;
    margin-bottom: 4px;
}

.result-description {
    font-size: 0.875rem;
    color: var(--text-secondary, #6b7280);
}

.no-results {
    padding: 16px;
    text-align: center;
    color: var(--text-secondary, #6b7280);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .search-results {
        position: fixed;
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        max-height: 50vh;
        border-radius: 16px 16px 0 0;
        margin-top: 0;
    }
}

/* Navbar Search Container */
.nav-search {
    position: relative;
    flex: 1;
    max-width: 400px;
    margin: 0 16px;
}

.search-input {
    width: 100%;
    padding: 8px 16px;
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 8px;
    font-size: 0.875rem;
    background-color: var(--background-color, #ffffff);
    color: var(--text-color, #1f2937);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-color, #667eea);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.search-input::placeholder {
    color: var(--text-secondary, #6b7280);
}

/* Loading State */
.main-nav .nav-links.loading {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.main-nav .nav-links.loading::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border: 3px solid var(--mobile-item-bg);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Accessibility Improvements */
.main-nav .nav-links a:focus-visible {
    outline: 3px solid var(--accent-color);
    outline-offset: 2px;
    background: var(--mobile-item-hover);
    color: white !important;
}

.main-nav .search-input:focus-visible {
    outline: 3px solid var(--accent-color);
    outline-offset: 2px;
}

.mobile-menu-btn:focus-visible {
    outline: 3px solid var(--accent-color);
    outline-offset: 2px;
}

/* Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* High Contrast Mode Support */
@media (forced-colors: active) {
    .main-nav .nav-links a {
        border: 2px solid CanvasText;
    }
    
    .mobile-menu-btn {
        border: 2px solid CanvasText;
    }
    
    .mobile-menu-btn span {
        background-color: CanvasText;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .main-nav .nav-links,
    .main-nav .nav-links a,
    .mobile-menu-btn,
    .mobile-menu-btn span {
        transition: none !important;
        animation: none !important;
    }
    
    .main-nav .nav-links.active {
        transform: none !important;
    }
}

/* Skip Navigation Link */
.skip-nav {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary);
    color: white;
    padding: 8px;
    z-index: 100;
    transition: top 0.2s ease;
}

.skip-nav:focus {
    top: 0;
}

/* Accessibility Improvements */
.nav-links a:focus,
.nav-links button:focus,
.search-input:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.nav-links a:focus-visible,
.nav-links button:focus-visible,
.search-input:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Ensure focus indicators are visible */
*:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Improve contrast for better visibility */
.nav-links a {
    color: var(--text);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.nav-links a:hover,
.nav-links a:focus {
    background-color: rgba(0, 0, 0, 0.1);
}

/* Ensure mobile menu button is accessible */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
}

.mobile-menu-btn:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Improve search input accessibility */
.search-input {
    padding: 0.5rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    width: 100%;
    max-width: 300px;
}

.search-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.1);
}

/* Ensure search results are accessible */
.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 1px solid var(--border);
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.search-results a {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--text);
    text-decoration: none;
}

.search-results a:hover,
.search-results a:focus {
    background-color: rgba(0, 0, 0, 0.1);
}