/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* CSS Custom Properties */
:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --accent-color: #06b6d4;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-dark: #0f172a;
    --bg-card: #ffffff;
    --bg-overlay: rgba(15, 23, 42, 0.8);
    
    --border-color: #e2e8f0;
    --border-hover: #cbd5e1;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 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 8px 10px -6px rgb(0 0 0 / 0.1);
    
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    --transition-all: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-colors: color 0.3s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-transform: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #f1f5f9;
        --text-secondary: #cbd5e1;
        --text-muted: #94a3b8;
        --text-light: #64748b;
        
        --bg-primary: #0f172a;
        --bg-secondary: #1e293b;
        --bg-card: #1e293b;
        --bg-overlay: rgba(255, 255, 255, 0.1);
        
        --border-color: #334155;
        --border-hover: #475569;
    }
}

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    font-weight: 400;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    letter-spacing: -0.025em;
    color: var(--text-primary);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.875rem);
    font-weight: 600;
}

h4 {
    font-size: 1.25rem;
    font-weight: 600;
}

p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
}

.lead {
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--text-muted);
}

.code {
    font-family: 'JetBrains Mono', monospace;
    background-color: var(--bg-secondary);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--primary-color);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition-colors);
    position: relative;
}

a:hover {
    color: var(--secondary-color);
}

a.link-underline:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -2px;
    left: 0;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

a.link-underline:hover:after {
    width: 100%;
}

/* Modern Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-all);
    text-decoration: none;
    line-height: 1.5;
    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(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--shadow-md);
    border: 1px solid transparent;
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--shadow-xl);
    color: white;
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-ghost:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    border-radius: var(--radius-md);
}

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1.125rem;
    border-radius: var(--radius-xl);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Button Groups */
.btn-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
}

/* Floating Action Buttons */
.btn-fab {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    transition: var(--transition-all);
    z-index: 100;
}

.btn-fab:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

/* Cookie Consent Banner */
.cookie-consent {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(0, 0, 0, 0.95);
    color: white;
    padding: 20px;
    z-index: 1000;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.cookie-consent.show {
    transform: translateY(0);
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.cookie-buttons {
    display: flex;
    gap: 10px;
    align-items: center;
}

.cookie-link {
    color: #93c5fd;
    text-decoration: underline;
    margin-left: 10px;
}

/* Modern Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
    transition: var(--transition-all);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-lg);
}

.navbar {
    padding: 1.25rem 0;
    transition: var(--transition-all);
}

.header.scrolled .navbar {
    padding: 0.75rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    flex-direction: column;
    transition: var(--transition-all);
}

.nav-brand h1 {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.125rem;
    letter-spacing: -0.025em;
}

.tagline {
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.nav-menu a {
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition-colors);
    position: relative;
    padding: 0.5rem 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    transition: width 0.3s ease;
}

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

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    transition: var(--transition-all);
}

.hamburger:hover {
    background: var(--bg-secondary);
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
    transition: var(--transition-all);
}

/* Modern Hero Section */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 25% 25%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 3;
    padding: 8rem 0 4rem;
    width: 100%;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text {
    color: white;
}

.hero-text h2 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text .highlight {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    color: white;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-visual {
    position: relative;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-image {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transform: perspective(1000px) rotateY(-15deg) rotateX(10deg);
    transition: var(--transition-transform);
}

.hero-image:hover {
    transform: perspective(1000px) rotateY(-10deg) rotateX(5deg) scale(1.02);
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
}

.hero-decoration {
    position: absolute;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

.hero-decoration:nth-child(1) {
    width: 100px;
    height: 100px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.hero-decoration:nth-child(2) {
    width: 150px;
    height: 150px;
    top: 60%;
    right: 20%;
    animation-delay: 2s;
}

.hero-decoration:nth-child(3) {
    width: 80px;
    height: 80px;
    bottom: 20%;
    left: 60%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}

/* Code Animation */
.code-animation {
    position: absolute;
    top: 20%;
    right: 10%;
    background: rgba(15, 23, 42, 0.9);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(99, 102, 241, 0.2);
    box-shadow: var(--shadow-xl);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    color: #64748b;
    max-width: 300px;
    animation: slideInRight 1s ease-out 0.5s both;
}

.code-line {
    margin-bottom: 0.5rem;
    opacity: 0;
    animation: typewriter 0.8s ease-out forwards;
}

.code-line:nth-child(1) { animation-delay: 1s; }
.code-line:nth-child(2) { animation-delay: 1.5s; }
.code-line:nth-child(3) { animation-delay: 2s; }

.code-keyword { color: var(--primary-color); }
.code-function { color: var(--accent-color); }
.code-string { color: var(--success-color); }
.code-comment { color: var(--text-muted); }

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

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

/* Page Header */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
}

/* Modern Section Styles */
section {
    padding: 6rem 0;
    position: relative;
}

.section-title {
    text-align: center;
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 4rem;
    color: var(--text-primary);
    position: relative;
    font-weight: 700;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto 4rem;
    line-height: 1.7;
}

/* Modern Features Section */
.features {
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(45deg, transparent 30%, rgba(99, 102, 241, 0.03) 50%, transparent 70%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    position: relative;
    z-index: 2;
}

.feature-card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-all);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
    animation: slideInUp 0.6s ease-out forwards;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.feature-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.feature-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.2), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s;
}

.feature-card:hover .feature-icon::before {
    transform: translateX(100%);
}

.feature-card i {
    font-size: 2rem;
    color: white;
    z-index: 2;
    position: relative;
}

.feature-card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.375rem;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 0;
}

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

/* Modern About Preview */
.about-preview {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.about-preview::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: 
        radial-gradient(circle at 80% 20%, rgba(99, 102, 241, 0.05) 0%, transparent 50%);
    z-index: 1;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.about-text {
    opacity: 0;
    transform: translateX(-30px);
    animation: slideInLeft 0.8s ease-out 0.3s forwards;
}

.about-text h2 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    position: relative;
}

.about-text h2::before {
    content: '';
    position: absolute;
    top: -0.5rem;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.about-text p {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.about-image {
    position: relative;
    opacity: 0;
    transform: translateX(30px);
    animation: slideInRight 0.8s ease-out 0.5s forwards;
}

.about-image::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: 20px;
    bottom: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-xl);
    opacity: 0.1;
    z-index: -1;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    transition: var(--transition-transform);
}

.about-image:hover img {
    transform: scale(1.02) rotate(1deg);
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Modern Courses Section */
.courses-preview {
    background: var(--bg-secondary);
    position: relative;
}

.courses-preview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(45deg, transparent 20%, rgba(139, 92, 246, 0.02) 50%, transparent 80%);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-bottom: 4rem;
    position: relative;
    z-index: 2;
}

.course-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-all);
    border: 1px solid var(--border-color);
    position: relative;
    opacity: 0;
    transform: translateY(30px);
    animation: slideInUp 0.6s ease-out forwards;
}

.course-card:nth-child(1) { animation-delay: 0.1s; }
.course-card:nth-child(2) { animation-delay: 0.2s; }
.course-card:nth-child(3) { animation-delay: 0.3s; }

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.course-card:hover::before {
    opacity: 0.03;
}

.course-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.course-image {
    position: relative;
    overflow: hidden;
    height: 220px;
}

.course-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-transform);
}

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

.course-level-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 600;
    z-index: 2;
}

.course-content {
    padding: 2rem;
    position: relative;
    z-index: 2;
}

.course-content h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.375rem;
}

.course-content p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.course-meta {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.course-meta span {
    background: var(--bg-secondary);
    color: var(--text-muted);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

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

/* Detailed Course Cards */
.course-card.detailed {
    position: relative;
}

.course-image {
    position: relative;
}

.course-level {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: #2563eb;
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.course-details {
    display: flex;
    gap: 1rem;
    margin: 1rem 0;
    flex-wrap: wrap;
}

.detail {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #6b7280;
    font-size: 0.875rem;
}

.detail i {
    color: #2563eb;
}

.course-curriculum {
    margin: 1.5rem 0;
}

.course-curriculum h4 {
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.course-curriculum ul {
    list-style: none;
    padding-left: 0;
}

.course-curriculum li {
    padding: 0.25rem 0;
    color: #6b7280;
    position: relative;
    padding-left: 1.5rem;
}

.course-curriculum li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
}

.course-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* Course Categories */
.course-categories {
    background-color: #fff;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.category-card {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 12px;
    transition: transform 0.3s ease;
}

.category-card:hover {
    transform: translateY(-5px);
}

.category-card i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* Learning Benefits */
.learning-benefits {
    background-color: #f8fafc;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.benefit-item i {
    font-size: 1.5rem;
    color: #2563eb;
    margin-top: 0.25rem;
}

.benefit-item h3 {
    color: #1f2937;
    margin-bottom: 0.5rem;
}

/* Course Schedule */
.course-schedule {
    background-color: #fff;
}

.schedule-table {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.table-header {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 2fr 1fr;
    background-color: #2563eb;
    color: white;
    font-weight: 600;
}

.table-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 2fr 1fr;
    border-bottom: 1px solid #e5e7eb;
}

.table-row:last-child {
    border-bottom: none;
}

.header-cell,
.table-cell {
    padding: 1rem;
    text-align: left;
}

.table-cell {
    color: #374151;
}

.table-cell:last-child {
    text-align: center;
}

/* Values Section */
.values {
    background-color: #f8fafc;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.value-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.value-card:hover {
    transform: translateY(-5px);
}

.value-card i {
    font-size: 3rem;
    color: #2563eb;
    margin-bottom: 1rem;
}

/* Our Story */
.our-story {
    background-color: #fff;
}

.story-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.story-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* Methodology */
.methodology {
    background-color: #f8fafc;
}

.methodology-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.method-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.method-card:hover {
    transform: translateY(-5px);
}

.method-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.method-icon i {
    font-size: 2rem;
    color: white;
}

/* Team Section */
.team {
    background-color: #fff;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.team-member {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.team-member:hover {
    transform: translateY(-5px);
}

.team-member img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.member-info {
    padding: 1.5rem;
}

.member-info h3 {
    color: #1f2937;
    margin-bottom: 0.5rem;
}

/* Company Info */
.company-info {
    background-color: #f8fafc;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.info-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.info-card h3 {
    color: #1f2937;
    margin-bottom: 1rem;
}

.info-card ul {
    list-style: none;
    padding-left: 0;
}

.info-card li {
    padding: 0.25rem 0;
    color: #6b7280;
    position: relative;
    padding-left: 1.5rem;
}

.info-card li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #2563eb;
    font-weight: bold;
}

/* Contact Section */
.contact-section {
    background-color: #f8fafc;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-methods {
    margin: 2rem 0;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.contact-method i {
    font-size: 1.5rem;
    color: #2563eb;
    width: 30px;
    text-align: center;
}

.contact-method h3 {
    color: #1f2937;
    margin-bottom: 0.25rem;
}

.contact-method p {
    color: #6b7280;
    margin-bottom: 0;
}

.contact-image {
    margin-top: 2rem;
}

.contact-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* Contact Form */
.contact-form-container {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.contact-form {
    display: grid;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 0.5rem;
    color: #374151;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem;
    border: 2px solid #e5e7eb;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2563eb;
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: #dc2626;
}

.checkbox-group {
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    color: #374151;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid #e5e7eb;
    border-radius: 3px;
    display: inline-block;
    position: relative;
    transition: all 0.3s ease;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background-color: #2563eb;
    border-color: #2563eb;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark:after {
    content: "✓";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.error-message {
    color: #dc2626;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: none;
}

.error-message.show {
    display: block;
}

.success-message {
    text-align: center;
    padding: 2rem;
    background: #f0fdf4;
    border-radius: 12px;
    border: 2px solid #10b981;
    color: #065f46;
}

.success-message i {
    font-size: 3rem;
    color: #10b981;
    margin-bottom: 1rem;
}

.success-message h3 {
    color: #065f46;
    margin-bottom: 1rem;
}

/* FAQ Section */
.faq-section {
    background-color: #fff;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.faq-item {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid #2563eb;
}

.faq-item h3 {
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.faq-item p {
    color: #6b7280;
    margin-bottom: 0;
}

/* Modern CTA Section */
.cta {
    background: linear-gradient(135deg, var(--bg-dark) 0%, #1e293b  50%, #334155 100%);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 40%, rgba(99, 102, 241, 0.15) 0%, transparent 70%),
        radial-gradient(circle at 70% 80%, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
    z-index: 1;
}

.cta-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

.cta-content p {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

.cta .btn {
    font-size: 1.125rem;
    padding: 1.25rem 3rem;
    margin: 0 1rem;
}

/* Legal Content */
.legal-content {
    background-color: #fff;
    padding: 60px 0;
}

.legal-document {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.legal-document h2 {
    color: #1f2937;
    margin-top: 2rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #e5e7eb;
}

.legal-document h3 {
    color: #374151;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.legal-document ul {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.legal-document li {
    margin-bottom: 0.5rem;
    color: #6b7280;
}

.contact-details {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 8px;
    margin: 1rem 0;
}

.contact-details p {
    margin-bottom: 0.5rem;
    color: #374151;
}

.contact-details p:last-child {
    margin-bottom: 0;
}

/* Footer */
.footer {
    background-color: #1f2937;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: white;
    margin-bottom: 1rem;
}

.footer-section p {
    color: #d1d5db;
    margin-bottom: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #d1d5db;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #93c5fd;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: #374151;
    color: white;
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

.social-links a:hover {
    background-color: #2563eb;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.contact-info p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #d1d5db;
    margin-bottom: 0;
}

.contact-info i {
    color: #93c5fd;
    width: 16px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #374151;
    color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: white;
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        gap: 1rem;
    }

    .nav-menu.active {
        display: flex;
    }

    .hero {
        flex-direction: column;
        text-align: center;
        padding: 100px 0 60px;
    }

    .hero-text h2 {
        font-size: 2rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-image {
        margin-top: 2rem;
    }

    .about-content,
    .story-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .table-header,
    .table-row {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .table-header {
        display: none;
    }

    .table-cell {
        padding: 0.5rem;
        border-bottom: 1px solid #e5e7eb;
        position: relative;
    }

    .table-cell:before {
        content: attr(data-label);
        font-weight: bold;
        color: #374151;
        display: block;
        margin-bottom: 0.25rem;
    }

    .cookie-content {
        flex-direction: column;
        text-align: center;
    }

    .cookie-buttons {
        justify-content: center;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    h1 {
        font-size: 2rem;
    }

    .course-actions {
        flex-direction: column;
    }

    .features-grid,
    .courses-grid,
    .values-grid,
    .methodology-grid,
    .team-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
    }

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

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

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

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero-text h2 {
        font-size: 1.75rem;
    }

    .hero-text p {
        font-size: 1rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.875rem;
    }

    .course-card {
        margin-bottom: 1rem;
    }

    .contact-form-container {
        padding: 1.5rem;
    }

    .legal-document {
        padding: 0 1rem;
    }

    section {
        padding: 60px 0;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #2563eb;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Smooth Transitions */
* {
    transition: all 0.3s ease;
}

/* Focus Styles for Accessibility */
button:focus,
input:focus,
select:focus,
textarea:focus,
a:focus {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .cookie-consent,
    .cta {
        display: none;
    }
    
    .page-header {
        background: none;
        color: #000;
    }
    
    .legal-document {
        font-size: 12px;
        line-height: 1.4;
    }
}

/* Additional Modern Responsive Design */
@media (max-width: 768px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-visual {
        order: -1;
        height: 400px;
    }
    
    .hero-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .code-animation {
        display: none;
    }
    
    .btn-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
    
    /* Feature card responsiveness */
    .feature-card,
    .course-card {
        animation-delay: 0s !important;
    }
}

@media (max-width: 480px) {
    .hero-content {
        padding: 6rem 0 3rem;
    }
    
    .feature-card,
    .course-card {
        padding: 2rem 1.5rem;
    }
    
    .btn-fab {
        bottom: 1rem;
        right: 1rem;
        width: 3rem;
        height: 3rem;
    }
}

/* Dark mode responsive adjustments */
@media (prefers-color-scheme: dark) and (max-width: 768px) {
    .nav-menu {
        background: rgba(15, 23, 42, 0.98);
    }
    
    .nav-menu a {
        color: var(--text-primary);
    }
}