/* JCU Cairns iDeas Lab IoT Facility - Optimized CSS */
/* Optimized for performance, accessibility, and cross-browser compatibility */

/* Import fonts with display: swap for performance */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* CSS Variables for maintainability and theming */
:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --tech-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --ai-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --success-gradient: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    --warning-gradient: linear-gradient(135deg, #f2994a 0%, #f2c94c 100%);
    --error-gradient: linear-gradient(135deg, #eb3349 0%, #f45c43 100%);
    
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    --glass-shadow-hover: 0 12px 40px 0 rgba(31, 38, 135, 0.5);
    
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --text-muted: rgba(255, 255, 255, 0.6);
    --text-inverse: #1a1a1a;
    
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;
    --border-radius-xl: 30px;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    --z-index-dropdown: 1000;
    --z-index-sticky: 1010;
    --z-index-fixed: 1020;
    --z-index-modal: 1030;
    --z-index-popover: 1040;
    --z-index-tooltip: 1050;
}

/* Enhanced body styles */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #7e22ce 100%);
    background-attachment: fixed;
    min-height: 100vh;
    color: var(--text-primary);
    overflow-x: hidden;
    position: relative;
    line-height: 1.6;
    font-feature-settings: 'kern' 1, 'liga' 1;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Focus styles for accessibility */
.keyboard-navigation *:focus {
    outline: 2px solid var(--tech-gradient);
    outline-offset: 2px;
}

/* Animated background particles */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: float 20s infinite linear;
    will-change: transform, opacity;
}

@keyframes float {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) rotate(360deg);
        opacity: 0;
    }
}

/* Floating Orbs */
.orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.6;
    animation: orbFloat 20s infinite ease-in-out;
    pointer-events: none;
    z-index: -1;
}

.orb1 {
    width: 300px;
    height: 300px;
    background: var(--primary-gradient);
    top: 10%;
    left: 10%;
}

.orb2 {
    width: 200px;
    height: 200px;
    background: var(--secondary-gradient);
    top: 60%;
    right: 10%;
    animation-delay: -5s;
}

.orb3 {
    width: 250px;
    height: 250px;
    background: var(--tech-gradient);
    bottom: 10%;
    left: 30%;
    animation-delay: -10s;
}

@keyframes orbFloat {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -30px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

/* Enhanced Navigation */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block !important;
    }
    
    .nav-list {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(30, 60, 114, 0.95);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 1rem;
        gap: 0;
        display: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-list.active {
        display: flex;
    }
    
    .nav-list li {
        width: 100%;
    }
    
    .nav-link {
        display: block;
        padding: 1rem;
        border-radius: 0;
    }
}

/* CTA Buttons */
.cta-button {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--border-radius-xl);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    display: inline-block;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: left var(--transition-normal);
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button.primary {
    background: var(--tech-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(79, 172, 254, 0.3);
}

.cta-button.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(79, 172, 254, 0.4);
}

.cta-button.secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.cta-button.secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

.cta-button:focus {
    outline: 2px solid var(--tech-gradient);
    outline-offset: 2px;
}

/* Content Sections */
.content-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-xl);
    text-align: center;
    font-weight: 700;
    background: var(--tech-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

/* Feature Grids */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.feature-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(79, 172, 254, 0.1) 0%, rgba(0, 242, 254, 0.1) 100%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--glass-shadow-hover);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* AI Integration Cards */
.ai-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.ai-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    padding: var(--spacing-lg);
    position: relative;
    transition: all var(--transition-normal);
}

.ai-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--glass-shadow-hover);
}

.ai-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    background: var(--ai-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.ai-features {
    list-style: none;
    margin-top: var(--spacing-sm);
}

.ai-features li {
    padding: var(--spacing-xs) 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
}

.ai-features li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: #43e97b;
    font-weight: bold;
}

/* Interactive Demo Section */
.demo-container {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    padding: var(--spacing-xl);
    text-align: center;
    margin-top: var(--spacing-xl);
}

.demo-button {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    background: var(--tech-gradient);
    border: none;
    border-radius: var(--border-radius-xl);
    color: white;
    cursor: pointer;
    transition: all var(--transition-normal);
    margin: var(--spacing-xs);
    position: relative;
    overflow: hidden;
}

.demo-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.3s, height 0.3s;
}

.demo-button:hover::before {
    width: 300px;
    height: 300px;
}

.demo-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(79, 172, 254, 0.4);
}

.demo-button:focus {
    outline: 2px solid var(--ai-gradient);
    outline-offset: 2px;
}

.demo-output {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    min-height: 200px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    display: none;
}

.demo-output.active {
    display: block;
    animation: fadeIn var(--transition-normal);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Contact Section */
.contact-section {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    padding: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.contact-item {
    text-align: center;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-normal);
}

.contact-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.contact-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
    display: block;
}

.contact-title {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.contact-info {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .feature-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
    
    .ai-grid {
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    }
}

@media (max-width: 768px) {
    .content-section {
        padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    .feature-grid,
    .ai-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .demo-button {
        display: block;
        width: 100%;
        margin: var(--spacing-xs) 0;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .feature-card,
    .ai-card {
        padding: var(--spacing-md);
    }
}

/* Print Styles */
@media print {
    .particles-container,
    .orb,
    .loading-overlay,
    .mobile-menu-toggle,
    .demo-button {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .glass-container {
        background: white !important;
        border: 1px solid #ccc !important;
        box-shadow: none !important;
    }
    
    .feature-card,
    .ai-card {
        background: white !important;
        border: 1px solid #ccc !important;
        page-break-inside: avoid;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --glass-bg: rgba(255, 255, 255, 0.9);
        --glass-border: rgba(0, 0, 0, 0.8);
        --text-primary: #000000;
        --text-secondary: #333333;
    }
    
    body {
        background: white;
        color: black;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .orb {
        animation: none !important;
    }
    
    .particle {
        animation: none !important;
    }
}

/* Light mode support */
@media (prefers-color-scheme: light) {
    body {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: #333333;
    }
    
    :root {
        --text-primary: #333333;
        --text-secondary: rgba(51, 51, 51, 0.8);
        --text-muted: rgba(51, 51, 51, 0.6);
        --glass-bg: rgba(255, 255, 255, 0.2);
        --glass-border: rgba(0, 0, 0, 0.1);
        --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
    }
    
    .feature-card:hover,
    .ai-card:hover {
        box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.15);
    }
}

/* Loading states */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: loading-shimmer 1.5s infinite;
}

@keyframes loading-shimmer {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

/* Utility classes */
.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;
}

.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

/* 3D Equipment Section Styles */
.equipment-section {
    padding: var(--spacing-xxl) var(--spacing-lg);
    background: rgba(0, 0, 0, 0.2);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    background: var(--tech-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.equipment-categories {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.category-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-xl);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
    font-weight: 500;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.category-btn:hover,
.category-btn.active {
    background: var(--tech-gradient);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(79, 172, 254, 0.3);
}

.equipment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.equipment-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.equipment-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--glass-shadow-hover);
    border-color: rgba(79, 172, 254, 0.5);
}

.equipment-preview {
    position: relative;
    height: 250px;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    overflow: hidden;
}

.equipment-3d-container {
    width: 100%;
    height: 100%;
    position: relative;
}

.equipment-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    pointer-events: none;
    transition: all var(--transition-normal);
}

.equipment-overlay i {
    font-size: 3rem;
    margin-bottom: var(--spacing-xs);
    opacity: 0.8;
}

.equipment-overlay span {
    display: block;
    font-weight: 500;
    opacity: 0.9;
}

.equipment-info {
    padding: var(--spacing-lg);
}

.equipment-info h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.equipment-type {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-size: 0.9rem;
}

.equipment-specs {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.equipment-specs span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.equipment-specs i {
    color: #4facfe;
    width: 16px;
}

/* Button Styles */
.btn {
    padding: var(--spacing-xs) var(--spacing-md);
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    font-size: 0.9rem;
}

.btn-primary {
    background: var(--tech-gradient);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(79, 172, 254, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}

.btn-outline:hover {
    background: var(--glass-bg);
    border-color: #4facfe;
    color: white;
}

/* Virtual Lab Explorer Styles */
.lab-explorer-section {
    padding: var(--spacing-xxl) var(--spacing-lg);
    background: rgba(0, 0, 0, 0.3);
}

.lab-explorer-container {
    max-width: 1400px;
    margin: 0 auto;
}

.lab-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.control-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.control-btn:hover {
    background: var(--glass-bg);
    border-color: #4facfe;
    transform: translateY(-2px);
}

.view-toggle {
    display: flex;
    background: var(--glass-bg);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--glass-border);
    overflow: hidden;
}

.view-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.view-btn.active,
.view-btn:hover {
    background: var(--tech-gradient);
    color: white;
}

.lab-floor-plan {
    position: relative;
    background: var(--glass-bg);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
}

#lab-canvas {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-md);
    background: rgba(0, 0, 0, 0.3);
}

.lab-legend {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.legend-color {
    width: 16px;
    height: 16px;
    border-radius: var(--border-radius-sm);
}

.legend-color.available {
    background: #38ef7d;
}

.legend-color.in-use {
    background: #f2994a;
}

.legend-color.maintenance {
    background: #eb3349;
}

.equipment-details-panel {
    margin-top: var(--spacing-lg);
    background: var(--glass-bg);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
}

/* Analytics Section Styles */
.analytics-section {
    padding: var(--spacing-xxl) var(--spacing-lg);
    background: rgba(0, 0, 0, 0.2);
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.analytics-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.analytics-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--glass-shadow-hover);
}

.analytics-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.analytics-card canvas {
    max-height: 250px;
}

.real-time-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.stat-item {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.stat-item:hover {
    transform: translateY(-2px);
    border-color: rgba(79, 172, 254, 0.5);
}

.stat-item i {
    font-size: 2rem;
    color: #4facfe;
}

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

/* Tools Section Styles */
.tools-section {
    padding: var(--spacing-xxl) var(--spacing-lg);
    background: rgba(0, 0, 0, 0.3);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
}

.tool-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--glass-shadow-hover);
}

.tool-header {
    padding: var(--spacing-lg);
    background: var(--tech-gradient);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.tool-header i {
    font-size: 2rem;
    color: white;
}

.tool-header h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: white;
    margin: 0;
}

.tool-content {
    padding: var(--spacing-lg);
}

.comparison-container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.comparison-side {
    display: flex;
    flex-direction: column;
}

.equipment-select {
    padding: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.comparison-vs {
    font-weight: 700;
    color: #4facfe;
    font-size: 1.2rem;
}

.comparison-results {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: rgba(79, 172, 254, 0.1);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(79, 172, 254, 0.3);
    display: none;
}

.comparison-results.show {
    display: block;
}

.calculator-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select {
    padding: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.form-group input[type="range"] {
    padding: 0;
}

.calculation-results {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: rgba(67, 233, 123, 0.1);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(67, 233, 123, 0.3);
    display: none;
}

.calculation-results.show {
    display: block;
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-index-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    max-width: 90vw;
    max-height: 90vh;
    width: 1000px;
    height: 700px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--glass-shadow);
    transform: scale(0.9);
    transition: all var(--transition-normal);
}

.modal.show .modal-content {
    transform: scale(1);
}

.modal-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.5rem;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.modal-body {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    height: calc(100% - 80px);
}

.modal-3d-container {
    flex: 1;
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.modal-specs {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.modal-controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Responsive 3D Styles */
@media (max-width: 1024px) {
    .equipment-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }

    .tools-grid {
        grid-template-columns: 1fr;
    }

    .analytics-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .equipment-categories {
        gap: var(--spacing-xs);
    }

    .category-btn {
        font-size: 0.9rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .lab-controls {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .real-time-stats {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }

    .modal-content {
        width: 95vw;
        height: 80vh;
    }

    .comparison-container {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
        gap: var(--spacing-sm);
    }

    .comparison-vs {
        justify-self: center;
    }
}

@media (max-width: 480px) {
    .section-header h2 {
        font-size: 2rem;
    }

    .equipment-grid {
        grid-template-columns: 1fr;
    }

    .analytics-grid {
        grid-template-columns: 1fr;
    }

    .real-time-stats {
        grid-template-columns: 1fr;
    }

    .modal-content {
        width: 100vw;
        height: 100vh;
        border-radius: 0;
    }
}

/* ==============================================
   AI INTEGRATION SECTION STYLES
   ============================================== */

/* AI Integration Section Base */
.ai-integration-section {
    padding: var(--spacing-xxl) var(--spacing-lg);
    background: linear-gradient(135deg, rgba(30, 60, 114, 0.1) 0%, rgba(42, 82, 152, 0.1) 50%, rgba(126, 34, 206, 0.1) 100%);
    position: relative;
    overflow: hidden;
}

/* AI Statistics Dashboard */
.ai-stats-dashboard {
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.ai-stats-dashboard::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(67, 233, 123, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--glass-border);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left var(--transition-slow);
}

.stat-card:hover::before {
    left: 100%;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    border-color: rgba(79, 172, 254, 0.5);
}

.stat-card i {
    font-size: 2.5rem;
    background: var(--tech-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 2px 4px rgba(79, 172, 254, 0.3));
}

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1;
    animation: countUp 1s ease-out;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* AI Demonstrations Section */
.ai-demos-section {
    margin-bottom: var(--spacing-xxl);
}

.ai-demos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.ai-demo-card {
    padding: var(--spacing-xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.ai-demo-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(79, 172, 254, 0.05) 0%, rgba(0, 242, 254, 0.05) 100%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.ai-demo-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
    border-color: rgba(79, 172, 254, 0.3);
}

.ai-demo-card:hover::before {
    opacity: 1;
}

.demo-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.demo-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    position: relative;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    transition: transform var(--transition-normal);
}

.ai-demo-card:hover .demo-icon {
    transform: scale(1.1);
}

.demo-icon.predictive-maintenance {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.demo-icon.smart-manufacturing {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.demo-icon.computer-vision {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.demo-icon.energy-management {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.demo-header h4 {
    color: var(--text-primary);
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    line-height: 1.2;
}

.demo-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.5;
}

.demo-chart {
    width: 100%;
    height: 220px;
    margin-bottom: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    z-index: 1;
}

.demo-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.status-indicator .badge {
    padding: 0.6rem 1.2rem;
    border-radius: var(--border-radius-xl);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.badge.success {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    color: white;
}

.badge.warning {
    background: linear-gradient(135deg, #f2994a 0%, #f2c94c 100%);
    color: white;
}

.badge.info {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
}

/* Progress Bar Styles */
.progress-bar {
    width: 100%;
    height: 10px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.progress-fill {
    height: 100%;
    border-radius: var(--border-radius-sm);
    transition: width 0.6s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.progress-fill::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

.progress-fill.success {
    background: linear-gradient(90deg, #11998e, #38ef7d);
}

.progress-fill.info {
    background: linear-gradient(90deg, #4facfe, #00f2fe);
}

.progress-fill.warning {
    background: linear-gradient(90deg, #f2994a, #f2c94c);
}

.progress-fill.danger {
    background: linear-gradient(90deg, #eb3349, #f45c43);
}

/* Vision Demo Styles */
.vision-demo {
    text-align: center;
    position: relative;
    z-index: 1;
}

.vision-comparison {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.vision-panel {
    flex: 1;
    position: relative;
}

.vision-canvas {
    width: 100%;
    height: 160px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-md);
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-normal);
}

.vision-canvas:hover {
    transform: scale(1.02);
    border-color: rgba(79, 172, 254, 0.5);
}

.vision-label {
    display: block;
    margin-top: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
}

/* Energy Stats Styles */
.energy-stats {
    display: flex;
    justify-content: space-around;
    margin-top: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.energy-stat {
    text-align: center;
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-normal);
}

.energy-stat:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.energy-value {
    display: block;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    background: var(--success-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.energy-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

/* AI Simulations Section */
.ai-simulations-section {
    margin-bottom: var(--spacing-xxl);
}

.simulation-container {
    padding: var(--spacing-xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    margin-bottom: var(--spacing-xl);
    transition: all var(--transition-normal);
}

.simulation-container:hover {
    box-shadow: var(--glass-shadow-hover);
    border-color: rgba(79, 172, 254, 0.3);
}

.simulation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.simulation-header h4 {
    color: var(--text-primary);
    font-size: 1.8rem;
    font-weight: 600;
    background: var(--tech-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.simulation-controls {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.simulation-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
}

.simulation-chart {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    height: 350px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.equipment-status {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    height: 350px;
    overflow-y: auto;
}

.equipment-status h5 {
    color: var(--text-primary);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.simulation-row {
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.simulation-card {
    padding: var(--spacing-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    height: 100%;
    transition: all var(--transition-normal);
}

.simulation-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--glass-shadow-hover);
}

.training-progress {
    margin-top: var(--spacing-lg);
}

.progress-item {
    margin-bottom: var(--spacing-lg);
}

.progress-item label {
    display: block;
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
}

.optimization-recommendations {
    margin-top: var(--spacing-lg);
}

.optimization-recommendations .alert {
    background: rgba(17, 153, 142, 0.1);
    border: 1px solid rgba(17, 153, 142, 0.3);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.optimization-recommendations h6 {
    color: #38ef7d;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.optimization-recommendations ul {
    margin: 0;
    padding-left: 1.5rem;
}

.optimization-recommendations li {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

/* Educational AI Tools Section */
.ai-education-section {
    margin-bottom: var(--spacing-xxl);
}

.education-card {
    padding: var(--spacing-xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    height: 100%;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.education-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(67, 233, 123, 0.05) 0%, rgba(56, 239, 215, 0.05) 100%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.education-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--glass-shadow-hover);
    border-color: rgba(67, 233, 123, 0.3);
}

.education-card:hover::before {
    opacity: 1;
}

.education-header h4 {
    color: var(--text-primary);
    font-size: 1.6rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    background: var(--ai-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.education-header h5 {
    color: var(--text-primary);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    background: var(--ai-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.learning-path-form {
    margin-top: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.learning-path-form .row {
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.learning-path-form label {
    display: block;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
}

.learning-path-form select {
    width: 100%;
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: all var(--transition-normal);
}

.learning-path-form select:focus {
    outline: 2px solid #43e97b;
    outline-offset: 2px;
    border-color: #43e97b;
}

.learning-path-form select option {
    background: #1e3c72;
    color: white;
    padding: var(--spacing-sm);
}

/* Chat Container Styles */
.chat-container {
    height: 450px;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 1;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-messages::-webkit-scrollbar {
    width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

.ai-message {
    margin-bottom: var(--spacing-lg);
    animation: messageSlide 0.3s ease-out;
}

@keyframes messageSlide {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ai-message .message-content {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.ai-message i {
    color: #4facfe;
    font-size: 1.3rem;
    margin-top: var(--spacing-xs);
    animation: pulse 2s ease-in-out infinite;
}

.ai-message span {
    color: var(--text-primary);
    font-size: 0.95rem;
    line-height: 1.6;
    background: rgba(79, 172, 254, 0.1);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(79, 172, 254, 0.2);
}

.chat-input {
    display: flex;
    gap: var(--spacing-sm);
}

.chat-input input {
    flex: 1;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-lg);
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: all var(--transition-normal);
}

.chat-input input:focus {
    outline: 2px solid #4facfe;
    outline-offset: 2px;
    border-color: #4facfe;
    background: rgba(255, 255, 255, 0.15);
}

.chat-input input::placeholder {
    color: var(--text-secondary);
}

.quick-suggestions {
    margin-top: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.quick-suggestions small {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.suggestion-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    flex-wrap: wrap;
}

.suggestion-buttons .btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.85rem;
    border-radius: var(--border-radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    transition: all var(--transition-normal);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    font-weight: 500;
}

.suggestion-buttons .btn:hover {
    background: rgba(79, 172, 254, 0.2);
    border-color: #4facfe;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(79, 172, 254, 0.2);
}

/* Skills Assessment Styles */
.skills-chart {
    width: 100%;
    height: 280px;
    margin-bottom: var(--spacing-lg);
}

.assessment-controls {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* Industry Matching Styles */
.industry-matching {
    text-align: center;
    position: relative;
    z-index: 1;
}

.matching-stats {
    display: flex;
    justify-content: space-around;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.matching-stat {
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    flex: 1;
    min-width: 100px;
    transition: all var(--transition-normal);
}

.matching-stat:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.stat-value {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    background: var(--success-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

.matches-list {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-normal);
}

.matches-list:hover {
    background: rgba(255, 255, 255, 0.08);
}

/* AI Analytics Section */
.ai-analytics-section {
    margin-bottom: var(--spacing-xxl);
}

.analytics-dashboard {
    padding: var(--spacing-xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    margin-bottom: var(--spacing-xl);
    transition: all var(--transition-normal);
}

.analytics-dashboard:hover {
    box-shadow: var(--glass-shadow-hover);
}

.analytics-header h4 {
    color: var(--text-primary);
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xl);
    background: var(--tech-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.analytics-content {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: var(--spacing-xl);
}

.sensor-chart-container {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    height: 450px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.sensor-controls {
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    height: 450px;
    overflow-y: auto;
}

.sensor-controls h5 {
    color: var(--text-primary);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sensor-toggles {
    margin-bottom: var(--spacing-xl);
}

.toggle-switch {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-normal);
}

.toggle-switch:hover {
    background: rgba(255, 255, 255, 0.05);
}

.toggle-switch input[type="checkbox"] {
    width: 0;
    height: 0;
    visibility: hidden;
    position: absolute;
}

.toggle-slider {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 30px;
    transition: background var(--transition-normal);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 24px;
    height: 24px;
    background: white;
    border-radius: 50%;
    transition: transform var(--transition-normal);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--tech-gradient);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(30px);
}

.toggle-switch span {
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
}

.ai-insight .alert {
    background: rgba(242, 153, 74, 0.1);
    border: 1px solid rgba(242, 153, 74, 0.3);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    margin-top: var(--spacing-lg);
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: var(--spacing-xl);
}

.analytics-card {
    padding: var(--spacing-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    height: 100%;
    transition: all var(--transition-normal);
}

.analytics-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--glass-shadow-hover);
}

.analytics-header h5 {
    color: var(--text-primary);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.analytics-chart {
    width: 100%;
    height: 220px;
    margin-bottom: var(--spacing-lg);
}

.predictions .alert {
    background: rgba(79, 172, 254, 0.1);
    border: 1px solid rgba(79, 172, 254, 0.3);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.predictions h6 {
    color: #4facfe;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.predictions ul {
    margin: 0;
    padding-left: 1.5rem;
}

.predictions li {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.resource-stats {
    margin-top: var(--spacing-lg);
}

.resource-stat {
    margin-bottom: var(--spacing-lg);
}

.resource-stat small {
    display: block;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.outcome-stats {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.outcome-stats .badge {
    padding: 0.6rem 1.2rem;
    border-radius: var(--border-radius-xl);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* ROI Calculator Styles */
.roi-calculator {
    margin-top: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.roi-form {
    margin-bottom: var(--spacing-xl);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
}

.form-group input {
    width: 100%;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: all var(--transition-normal);
}

.form-group input:focus {
    outline: 2px solid #43e97b;
    outline-offset: 2px;
    border-color: #43e97b;
    background: rgba(255, 255, 255, 0.15);
}

.roi-results {
    background: rgba(67, 233, 123, 0.1);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
    border: 1px solid rgba(67, 233, 123, 0.3);
    transition: all var(--transition-normal);
}

.roi-results:hover {
    background: rgba(67, 233, 123, 0.15);
}

/* Enhanced Alert Styles */
.alert {
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border: 1px solid;
    position: relative;
    overflow: hidden;
}

.alert::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: currentColor;
    opacity: 0.8;
}

.alert.info {
    background: rgba(79, 172, 254, 0.1);
    border-color: rgba(79, 172, 254, 0.3);
    color: #4facfe;
}

.alert.success {
    background: rgba(17, 153, 142, 0.1);
    border-color: rgba(17, 153, 142, 0.3);
    color: #38ef7d;
}

.alert.warning {
    background: rgba(242, 153, 74, 0.1);
    border-color: rgba(242, 153, 74, 0.3);
    color: #f2994a;
}

.alert.danger {
    background: rgba(235, 51, 73, 0.1);
    border-color: rgba(235, 51, 73, 0.3);
    color: #eb3349;
}

/* Enhanced Button Styles */
.btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius-xl);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn.primary {
    background: var(--primary-gradient);
    color: white;
}

.btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.btn.secondary {
    background: var(--secondary-gradient);
    color: white;
}

.btn.secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(240, 147, 251, 0.4);
}

.btn.success {
    background: var(--success-gradient);
    color: white;
}

.btn.success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(17, 153, 142, 0.4);
}

.btn.info {
    background: var(--tech-gradient);
    color: white;
}

.btn.info:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(79, 172, 254, 0.4);
}

.btn.warning {
    background: var(--warning-gradient);
    color: white;
}

.btn.warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(242, 153, 74, 0.4);
}

.btn.outline {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: var(--text-primary);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.btn.outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #4facfe;
    color: white;
    transform: translateY(-2px);
}

/* Responsive Design for AI Section */
@media (max-width: 1024px) {
    .ai-demos-grid {
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
        gap: var(--spacing-lg);
    }

    .analytics-grid {
        grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    }

    .simulation-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .analytics-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    .ai-integration-section {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .ai-demos-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .simulation-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .analytics-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .analytics-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }

    .energy-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .matching-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .vision-comparison {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .demo-controls {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: flex-start;
    }

    .simulation-controls {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .assessment-controls {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .outcome-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .simulation-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }

    .learning-path-form .row {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .ai-integration-section {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .ai-demo-card,
    .simulation-container,
    .education-card,
    .analytics-dashboard,
    .analytics-card {
        padding: var(--spacing-lg);
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .stat-card {
        padding: var(--spacing-md);
    }

    .demo-chart,
    .simulation-chart,
    .analytics-chart,
    .skills-chart,
    .sensor-chart-container {
        height: 180px;
    }

    .sensor-chart-container {
        height: 300px;
    }

    .simulation-chart,
    .equipment-status {
        height: 250px;
    }

    .chat-container {
        height: 350px;
    }

    .demo-header h4,
    .education-header h5,
    .analytics-header h5 {
        font-size: 1.2rem;
    }

    .simulation-header h4,
    .analytics-header h4 {
        font-size: 1.5rem;
    }

    .vision-canvas {
        height: 120px;
    }

    .energy-value,
    .stat-value {
        font-size: 1.2rem;
    }
}

/* Enhanced Loading States */
.loading-shimmer {
    position: relative;
    overflow: hidden;
}

.loading-shimmer::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: shimmer 1.5s infinite;
}

/* Enhanced Focus Styles */
.btn:focus,
select:focus,
input:focus,
.toggle-switch:focus-within {
    outline: 2px solid #4facfe;
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(79, 172, 254, 0.2);
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .glass-container {
        border: 2px solid var(--text-primary);
    }

    .btn {
        border: 2px solid var(--text-primary);
    }

    .demo-chart,
    .simulation-chart,
    .analytics-chart {
        border: 2px solid var(--text-primary);
    }
}