/* CSS Custom Properties */
:root {
    --primary-color: 230 75% 45%; /* Deep Blue matching logo */
    --secondary-color: 225 70% 55%; /* Lighter blue */
    --accent-color: 220 80% 60%; /* Bright blue accent */
    --background-dark: 225 15% 8%; /* Very dark blue-gray */
    --background-light: 225 12% 12%; /* Dark blue-gray */
    --surface-color: 225 10% 16%; /* Medium dark blue-gray */
    --text-primary: 0 0% 95%; /* #F2F2F2 */
    --text-secondary: 220 15% 70%; /* Light blue-gray */
    --text-muted: 220 10% 50%; /* Muted blue-gray */
    --border-color: 225 15% 25%; /* Blue-tinted border */
    --success-color: 120 60% 50%; /* #4CAF50 */
    --warning-color: 45 100% 60%; /* #FF9800 */
    --error-color: 0 70% 60%; /* #F44336 */
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --border-radius: 16px;
    --border-radius-sm: 8px;
    --border-radius-lg: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 10px 10px -5px rgb(0 0 0 / 0.04);
    
    /* Spacing Scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 5rem;
    --space-5xl: 6rem;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    background-color: hsl(var(--background-dark));
    color: hsl(var(--text-primary));
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Loading Screen */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: hsl(var(--background-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: var(--transition);
}

.loader-content {
    text-align: center;
    animation: fadeInUp 0.6s ease-out;
}

.loader-logo {
    width: 80px;
    height: 80px;
    margin-bottom: var(--space-lg);
    animation: pulse 2s infinite;
}

.loader-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid hsl(var(--border-color));
    border-top: 3px solid hsl(var(--primary-color));
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-md);
}

.loader p {
    color: hsl(var(--text-secondary));
    font-weight: 500;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

h1 { 
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
}
h2 { 
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
}
h3 { 
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
}
h4 { 
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    font-weight: 600;
}
h5 { 
    font-size: 1.25rem;
    font-weight: 500;
}
h6 { 
    font-size: 1rem;
    font-weight: 500;
}

p {
    margin-bottom: var(--space-md);
    color: hsl(var(--text-secondary));
    font-weight: 400;
}

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

@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-md);
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md) var(--space-xl);
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    gap: var(--space-sm);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn::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 0.5s;
}

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

.btn-primary {
    background: linear-gradient(135deg, hsl(var(--primary-color)), hsl(var(--secondary-color)));
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: hsl(var(--text-primary));
    border: 2px solid hsl(var(--border-color));
}

.btn-secondary:hover {
    background: hsl(var(--surface-color));
    border-color: hsl(var(--primary-color));
    transform: translateY(-1px);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: hsl(var(--background-light) / 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid hsl(var(--border-color));
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-md) var(--space-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.nav-logo-image {
    width: 40px;
    height: 40px;
    object-fit: contain;
    transition: var(--transition);
    display: block !important;
    opacity: 1 !important;
    visibility: visible !important;
}

.nav-logo:hover .nav-logo-image {
    transform: scale(1.1) rotate(5deg);
}

.nav-logo h2 {
    background: linear-gradient(135deg, hsl(var(--primary-color)), hsl(var(--accent-color)));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.25rem;
    margin: 0;
    font-weight: 700;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-xl);
    margin: 0;
}

.nav-link {
    color: hsl(var(--text-secondary));
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: var(--space-sm) 0;
}

.nav-link:hover,
.nav-link.active {
    color: hsl(var(--primary-color));
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, hsl(var(--primary-color)), hsl(var(--accent-color)));
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
    padding: var(--space-sm);
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.hamburger:hover {
    background: hsl(var(--surface-color));
}

.bar {
    width: 25px;
    height: 3px;
    background: hsl(var(--text-primary));
    transition: var(--transition);
    border-radius: 2px;
}

.hamburger.active .bar:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active .bar:nth-child(2) {
    opacity: 0;
}

.hamburger.active .bar:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Sections */
.section {
    padding: var(--space-5xl) 0;
    position: relative;
    scroll-margin-top: 80px; /* Account for fixed navbar when scrolling to sections */
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-4xl);
}

.section-title {
    background: linear-gradient(135deg, hsl(var(--primary-color)), hsl(var(--accent-color)));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-md);
    position: relative;
}

.section-subtitle {
    font-size: 1.25rem;
    color: hsl(var(--text-secondary));
    max-width: 600px;
    margin: 0 auto var(--space-lg);
}

.section-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, hsl(var(--primary-color)), hsl(var(--accent-color)));
    margin: 0 auto;
    border-radius: 2px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, hsl(var(--background-dark)), hsl(var(--background-light)));
    position: relative;
    overflow: hidden;
    padding-top: 80px; /* Account for fixed navbar */
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, hsl(var(--primary-color) / 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, hsl(var(--accent-color) / 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, hsl(var(--secondary-color) / 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
    position: relative;
    z-index: 2;
}

.hero-content {
    z-index: 2;
}

.logo-container {
    margin-bottom: var(--space-xl);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, hsl(var(--primary-color)), hsl(var(--accent-color)));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-image {
    width: 80px;
    height: 80px;
    object-fit: contain;
    filter: drop-shadow(0 4px 8px hsl(var(--primary-color) / 0.3));
    display: block !important;
    opacity: 1 !important;
    visibility: visible !important;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    background: linear-gradient(135deg, hsl(var(--text-primary)), hsl(var(--text-secondary)));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    margin-bottom: var(--space-xl);
    max-width: 500px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    margin-bottom: var(--space-xl);
}

.hero-stats {
    display: flex;
    gap: var(--space-xl);
    margin-top: var(--space-xl);
}

.stat {
    text-align: center;
}

.stat h3 {
    font-size: 2rem;
    font-weight: 800;
    color: hsl(var(--primary-color));
    margin-bottom: var(--space-xs);
}

.stat p {
    color: hsl(var(--text-muted));
    font-size: 0.875rem;
    margin: 0;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.floating-cards {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    position: relative;
}

.floating-cards .card {
    background: hsl(var(--surface-color) / 0.8);
    backdrop-filter: blur(20px);
    padding: var(--space-xl);
    border-radius: var(--border-radius);
    border: 1px solid hsl(var(--border-color));
    display: flex;
    align-items: center;
    gap: var(--space-md);
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.floating-cards .card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.floating-cards .card:nth-child(2) {
    transform: translateX(var(--space-xl));
}

.floating-cards .card:nth-child(3) {
    transform: translateX(-var(--space-md));
}

.floating-cards .card i {
    font-size: 2rem;
}

.tech-card i { color: hsl(var(--primary-color)); }
.design-card i { color: hsl(var(--accent-color)); }
.academy-card i { color: hsl(var(--secondary-color)); }

.scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    color: hsl(var(--text-muted));
    font-size: 1.5rem;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

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

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.animate-fade-in {
    animation: fadeIn 0.8s ease-out;
}

.animate-slide-up {
    animation: slideUp 0.8s ease-out;
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

.animate-float:nth-child(2) {
    animation-delay: -2s;
}

.animate-float:nth-child(3) {
    animation-delay: -4s;
}

/* Product Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
}

.product-card {
    background: hsl(var(--surface-color) / 0.8);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius);
    border: 1px solid hsl(var(--border-color));
    overflow: hidden;
    transition: var(--transition);
    position: relative;
    box-shadow: var(--shadow);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: hsl(var(--primary-color) / 0.5);
}

.product-image {
    position: relative;
    height: 220px;
    overflow: hidden;
    background: linear-gradient(135deg, hsl(var(--surface-color)), hsl(var(--background-light)));
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: var(--transition);
    padding: var(--space-lg);
    display: block !important;
    opacity: 1 !important;
    visibility: visible !important;
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-overlay {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    background: hsl(var(--primary-color) / 0.9);
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    transition: var(--transition);
}

.product-card:hover .product-overlay {
    transform: scale(1.1);
}

.product-badge {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    background: linear-gradient(135deg, hsl(var(--accent-color)), hsl(var(--primary-color)));
    color: white;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.product-info {
    padding: var(--space-xl);
}

.product-title {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
    color: hsl(var(--text-primary));
}

.product-description {
    color: hsl(var(--text-secondary));
    margin-bottom: var(--space-md);
    font-size: 0.9rem;
    line-height: 1.5;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
}

.feature {
    background: hsl(var(--background-light));
    color: hsl(var(--text-secondary));
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
}

.product-price {
    font-size: 1.75rem;
    font-weight: 800;
    color: hsl(var(--primary-color));
    margin-bottom: var(--space-md);
}

/* Pricing Grid */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.pricing-card {
    background: hsl(var(--surface-color) / 0.8);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius);
    border: 1px solid hsl(var(--border-color));
    padding: var(--space-xl);
    text-align: center;
    position: relative;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.pricing-card.featured {
    border-color: hsl(var(--primary-color));
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

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

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-5px);
}

.pricing-badge {
    position: absolute;
    top: -1rem;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, hsl(var(--primary-color)), hsl(var(--accent-color)));
    color: white;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 600;
    white-space: nowrap;
}

.pricing-header {
    margin-bottom: var(--space-xl);
}

.pricing-title {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
    color: hsl(var(--text-primary));
}

.pricing-price {
    font-size: 2.5rem;
    font-weight: 800;
    color: hsl(var(--primary-color));
    margin-bottom: var(--space-xs);
}

.pricing-period {
    color: hsl(var(--text-muted));
    font-size: 0.9rem;
    margin: 0;
}

.pricing-features ul {
    list-style: none;
    text-align: left;
    margin-bottom: var(--space-xl);
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    color: hsl(var(--text-secondary));
}

.pricing-features i {
    color: hsl(var(--success-color));
    font-size: 0.875rem;
    width: 16px;
}

/* Courses Grid */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.course-card {
    background: hsl(var(--surface-color) / 0.8);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius);
    border: 1px solid hsl(var(--border-color));
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

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

.course-image {
    height: 200px;
    background: linear-gradient(135deg, hsl(var(--primary-color) / 0.1), hsl(var(--accent-color) / 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.course-icon {
    font-size: 4rem;
    color: hsl(var(--primary-color));
}

.course-level {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    background: hsl(var(--background-dark));
    color: hsl(var(--text-primary));
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.course-info {
    padding: var(--space-xl);
}

.course-title {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
    color: hsl(var(--text-primary));
}

.course-description {
    color: hsl(var(--text-secondary));
    margin-bottom: var(--space-md);
    font-size: 0.9rem;
}

.course-meta {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    font-size: 0.875rem;
    color: hsl(var(--text-muted));
}

.course-meta span {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.course-price {
    font-size: 1.75rem;
    font-weight: 800;
    color: hsl(var(--primary-color));
    margin-bottom: var(--space-md);
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-4xl);
}

.vision-card {
    background: hsl(var(--surface-color) / 0.8);
    backdrop-filter: blur(20px);
    padding: var(--space-xl);
    border-radius: var(--border-radius);
    border: 1px solid hsl(var(--border-color));
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

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

.vision-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-md);
    background: linear-gradient(135deg, hsl(var(--primary-color)), hsl(var(--accent-color)));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.vision-card h3 {
    color: hsl(var(--text-primary));
    margin-bottom: var(--space-md);
}

.about-story {
    background: hsl(var(--surface-color) / 0.5);
    padding: var(--space-4xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid hsl(var(--border-color));
}

.about-story h3 {
    font-size: 2rem;
    color: hsl(var(--text-primary));
    margin-bottom: var(--space-lg);
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: start;
}

.contact-info h3 {
    color: hsl(var(--text-primary));
    margin-bottom: var(--space-xl);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.contact-item i {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, hsl(var(--primary-color)), hsl(var(--accent-color)));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.contact-item h4 {
    color: hsl(var(--text-primary));
    margin-bottom: var(--space-xs);
}

.contact-item p {
    color: hsl(var(--text-secondary));
    margin: 0;
}

.social-links {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.social-link {
    width: 50px;
    height: 50px;
    background: hsl(var(--surface-color));
    border: 1px solid hsl(var(--border-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: hsl(var(--text-secondary));
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background: hsl(var(--primary-color));
    color: white;
    transform: translateY(-2px);
}

/* Contact Form */
.contact-form {
    background: hsl(var(--surface-color) / 0.8);
    backdrop-filter: blur(20px);
    padding: var(--space-4xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid hsl(var(--border-color));
    box-shadow: var(--shadow);
}

.form-group {
    position: relative;
    margin-bottom: var(--space-xl);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    padding-left: 50px;
    border: 2px solid hsl(var(--border-color));
    border-radius: var(--border-radius);
    background: hsl(var(--background-light));
    color: hsl(var(--text-primary));
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: hsl(var(--primary-color));
    box-shadow: 0 0 0 3px hsl(var(--primary-color) / 0.1);
}

.form-group i {
    position: absolute;
    left: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    color: hsl(var(--text-muted));
    z-index: 1;
}

.form-group textarea + i {
    top: var(--space-md);
    transform: none;
}

/* Footer */
.footer {
    background: hsl(var(--background-light));
    border-top: 1px solid hsl(var(--border-color));
    padding: var(--space-4xl) 0 var(--space-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-4xl);
    margin-bottom: var(--space-4xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.footer-logo img {
    width: 40px;
    height: 40px;
}

.footer-logo h3 {
    background: linear-gradient(135deg, hsl(var(--primary-color)), hsl(var(--accent-color)));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.footer-section h4 {
    color: hsl(var(--text-primary));
    margin-bottom: var(--space-md);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--space-sm);
}

.footer-section ul li a {
    color: hsl(var(--text-secondary));
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: hsl(var(--primary-color));
}

.footer-social {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-md);
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: hsl(var(--surface-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: hsl(var(--text-secondary));
    text-decoration: none;
    transition: var(--transition);
}

.footer-social a:hover {
    background: hsl(var(--primary-color));
    color: white;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-xl);
    border-top: 1px solid hsl(var(--border-color));
}

.footer-links {
    display: flex;
    gap: var(--space-lg);
}

.footer-links a {
    color: hsl(var(--text-secondary));
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: hsl(var(--primary-color));
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, hsl(var(--primary-color)), hsl(var(--accent-color)));
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 100;
    box-shadow: var(--shadow-lg);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: hsl(var(--background-light) / 0.98);
        backdrop-filter: blur(20px);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
        padding: var(--space-xl) 0;
        border-top: 1px solid hsl(var(--border-color));
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: var(--space-md) 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-xl);
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .floating-cards .card:nth-child(2),
    .floating-cards .card:nth-child(3) {
        transform: none;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .pricing-card.featured:hover {
        transform: translateY(-5px);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }
    
    .nav-container {
        padding: var(--space-md);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 250px;
    }
    
    .products-grid,
    .pricing-grid,
    .courses-grid,
    .about-grid {
        grid-template-columns: 1fr;
    }
}

/* Section-specific styles */
.tech-section {
    background: linear-gradient(180deg, hsl(var(--background-dark)), hsl(var(--background-light)));
}

.design-section {
    background: hsl(var(--background-light));
}

.academy-section {
    background: linear-gradient(180deg, hsl(var(--background-light)), hsl(var(--background-dark)));
}

.about-section {
    background: hsl(var(--background-dark));
}

.contact-section {
    background: linear-gradient(180deg, hsl(var(--background-dark)), hsl(var(--background-light)));
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }

/* High Performance Optimizations */
* {
    will-change: auto;
}

.btn,
.product-card,
.pricing-card,
.course-card,
.vision-card {
    will-change: transform;
}

img {
    max-width: 100%;
    height: auto;
}

/* Focus States for Accessibility */
button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid hsl(var(--primary-color));
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .navbar,
    .back-to-top,
    .loader {
        display: none;
    }
    
    .section {
        break-inside: avoid;
    }
}