:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #f59e0b;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
    scroll-behavior: smooth;
}

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

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all 0.3s ease;
}

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

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.lang-switcher {
    display: flex;
    gap: 0.5rem;
}

.lang-btn {
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--gray-200);
    background: var(--white);
    color: var(--text-dark);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.875rem;
    font-weight: 500;
}

.lang-btn:hover,
.lang-btn.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    margin: 3px 0;
    transition: 0.3s;
}

/* Innovative split hero section with asymmetrical design */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.hero-left {
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
    z-index: 5;
    color: var(--white);
}

.hero-right {
    background: var(--white);
    overflow: hidden;
    position: relative;
}

.hero-content {
    max-width: 500px;
    position: relative;
    z-index: 3;
}

.hero-slant {
    position: absolute;
    top: 0;
    bottom: 0;
    right: -100px;
    width: 200px;
    background: var(--gradient-primary);
    transform: skew(-15deg);
    z-index: 2;
}

.hero-visual {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.hero-visual::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: var(--gradient-accent);
    border-radius: 38% 62% 63% 37% / 41% 44% 56% 59%;
    opacity: 0.1;
    animation: morphing 15s ease-in-out infinite;
}

.hero-visual::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: var(--gradient-secondary);
    border-radius: 38% 62% 63% 37% / 41% 44% 56% 59%;
    opacity: 0.1;
    animation: morphing 12s ease-in-out infinite reverse;
}

@keyframes morphing {
    0% {
        border-radius: 38% 62% 63% 37% / 41% 44% 56% 59%;
    }
    25% {
        border-radius: 45% 55% 49% 51% / 36% 51% 49% 64%;
    }
    50% {
        border-radius: 61% 39% 52% 48% / 44% 59% 41% 56%;
    }
    75% {
        border-radius: 35% 65% 31% 69% / 57% 59% 41% 43%;
    }
    100% {
        border-radius: 38% 62% 63% 37% / 41% 44% 56% 59%;
    }
}

.hero-image-container {
    position: relative;
    width: 300px;
    height: 300px;
    z-index: 3;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 30px;
    box-shadow: var(--shadow-xl);
    transform: rotate(-5deg);
}

.hero-image-shadow {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 30px;
    top: 15px;
    left: 15px;
    background: var(--accent-color);
    z-index: -1;
    opacity: 0.3;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero p {
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

.cta-container {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--accent-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-lg);
    transform: translateY(0);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    background: #d97706;
}

.cta-secondary {
    background: transparent;
    border: 2px solid var(--white);
}

.cta-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Floating code elements with animation */
.code-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
    overflow: hidden;
}

.code-element {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(5px);
    padding: 1rem;
    border-radius: 8px;
    box-shadow: var(--shadow-md);
    font-family: monospace;
    color: var(--white);
    animation: float 20s infinite linear;
}

.code-element:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-duration: 25s;
    animation-delay: 0s;
}

.code-element:nth-child(2) {
    top: 60%;
    left: 15%;
    animation-duration: 30s;
    animation-delay: 5s;
}

.code-element:nth-child(3) {
    top: 30%;
    left: 70%;
    animation-duration: 22s;
    animation-delay: 3s;
}

.code-element:nth-child(4) {
    top: 70%;
    left: 75%;
    animation-duration: 28s;
    animation-delay: 7s;
}

@keyframes float {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 0.7;
    }
    50% {
        transform: translateY(-30px) rotate(5deg);
        opacity: 0.5;
    }
    100% {
        transform: translateY(0) rotate(0deg);
        opacity: 0.7;
    }
}

/* Interactive language selection section */
.language-selection {
    padding: 8rem 0;
    position: relative;
    background: var(--gray-50);
    overflow: hidden;
}

.language-selection::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: var(--gradient-primary);
    border-radius: 50%;
    top: -300px;
    right: -300px;
    opacity: 0.05;
}

.language-selection::after {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: var(--gradient-accent);
    border-radius: 50%;
    bottom: -250px;
    left: -250px;
    opacity: 0.05;
}

.language-hub {
    display: flex;
    justify-content: center;
    position: relative;
    height: 600px;
    margin-top: 4rem;
}

.language-center {
    width: 150px;
    height: 150px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    box-shadow: var(--shadow-lg);
    font-size: 3rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.language-center:hover {
    transform: translate(-50%, -50%) scale(1.1);
}

.language-orbit {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 450px;
    height: 450px;
    transform: translate(-50%, -50%);
    border: 1px dashed var(--gray-200);
    border-radius: 50%;
}

.language-item {
    position: absolute;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 5;
    font-weight: bold;
    font-size: 1.2rem;
}

.language-item:hover {
    transform: scale(1.2);
    box-shadow: var(--shadow-lg);
}

.language-item:nth-child(1) {
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: var(--white);
}

.language-item:nth-child(1):hover {
    transform: translateX(-50%) scale(1.2);
}

.language-item:nth-child(2) {
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    background: var(--gradient-secondary);
    color: var(--white);
}

.language-item:nth-child(2):hover {
    transform: translateY(-50%) scale(1.2);
}

.language-item:nth-child(3) {
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-accent);
    color: var(--white);
}

.language-item:nth-child(3):hover {
    transform: translateX(-50%) scale(1.2);
}

.language-item:nth-child(4) {
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    background: linear-gradient(135deg, #12c2e9, #c471ed, #f64f59);
    color: var(--white);
}

.language-item:nth-child(4):hover {
    transform: translateY(-50%) scale(1.2);
}

.language-item:nth-child(5) {
    top: 13%;
    left: 13%;
    background: linear-gradient(135deg, #8E2DE2, #4A00E0);
    color: var(--white);
}

.language-item:nth-child(6) {
    top: 13%;
    right: 13%;
    background: linear-gradient(135deg, #FF416C, #FF4B2B);
    color: var(--white);
}

.language-item:nth-child(7) {
    bottom: 13%;
    right: 13%;
    background: linear-gradient(135deg, #11998e, #38ef7d);
    color: var(--white);
}

.language-item:nth-child(8) {
    bottom: 13%;
    left: 13%;
    background: linear-gradient(135deg, #F2994A, #F2C94C);
    color: var(--white);
}

.language-detail {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    background: var(--white);
    border-radius: 30px;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow-xl);
    z-index: 15;
}

.language-detail.active {
    display: flex;
}

.language-detail h3 {
    margin-bottom: 1rem;
    font-size: 1.8rem;
    color: var(--text-dark);
}

.language-detail p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.language-detail .close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
}

/* Staggered grid layout for learning paths */
.learning-paths {
    padding: 8rem 0;
    background: var(--white);
    position: relative;
    overflow: hidden;
}

.paths-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}

.path-card {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    position: relative;
    height: 300px;
    display: flex;
    flex-direction: column;
}

.path-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.path-card-1 {
    grid-column: 1 / span 5;
    grid-row: 1;
    background: var(--gradient-primary);
    color: var(--white);
}

.path-card-2 {
    grid-column: 6 / span 7;
    grid-row: 1;
    background: var(--white);
    border: 1px solid var(--gray-200);
}

.path-card-3 {
    grid-column: 1 / span 7;
    grid-row: 2;
    background: var(--white);
    border: 1px solid var(--gray-200);
}

.path-card-4 {
    grid-column: 8 / span 5;
    grid-row: 2;
    background: var(--gradient-secondary);
    color: var(--white);
}

.path-content {
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.path-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.path-description {
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.path-link {
    align-self: flex-start;
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background: var(--accent-color);
    color: var(--white);
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.path-link:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.white-card .path-link {
    background: var(--primary-color);
}

/* 3D perspective timeline */
.course-timeline {
    padding: 8rem 0;
    background: var(--gray-50);
    position: relative;
    perspective: 1000px;
}

.timeline-container {
    position: relative;
    max-width: 1000px;
    margin: 4rem auto 0;
    transform-style: preserve-3d;
    transform: rotateX(10deg);
}

.timeline-line {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 4px;
    background: var(--gradient-primary);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 4rem;
    perspective: 1000px;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: auto;
    transform-origin: right center;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-right: auto;
    transform-origin: left center;
}

.timeline-content {
    width: 45%;
    background: var(--white);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    position: relative;
    transition: all 0.3s ease;
    transform: rotateY(10deg);
}

.timeline-item:hover .timeline-content {
    transform: rotateY(0);
    box-shadow: var(--shadow-xl);
}

.timeline-dot {
    position: absolute;
    top: 30px;
    left: 50%;
    width: 20px;
    height: 20px;
    background: var(--white);
    border: 4px solid var(--primary-color);
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 5;
}

.timeline-date {
    position: absolute;
    top: 20px;
    font-weight: 700;
    color: var(--primary-color);
}

.timeline-item:nth-child(odd) .timeline-date {
    left: -100px;
    text-align: right;
}

.timeline-item:nth-child(even) .timeline-date {
    right: -100px;
    text-align: left;
}

.timeline-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.timeline-description {
    color: var(--text-light);
    line-height: 1.7;
}

/* Interactive statistics with 3D effect */
.stats-section {
    padding: 8rem 0;
    background: var(--gradient-primary);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.stats-section::after {
    content: '';
    position: absolute;
    bottom: -150px;
    left: -150px;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.stats-container {
    position: relative;
    perspective: 1000px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    transform-style: preserve-3d;
    transform: rotateX(5deg);
}

.stat-item {
    padding: 3rem 1.5rem;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    text-align: center;
    transition: all 0.5s ease;
    transform-style: preserve-3d;
    transform: translateZ(0);
}

.stat-item:hover {
    transform: translateZ(20px);
    background: rgba(255, 255, 255, 0.15);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    display: block;
    margin-bottom: 1rem;
    text-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.stat-label {
    font-size: 1.2rem;
    opacity: 0.9;
    font-weight: 500;
}

/* Testimonials with custom styling */
.testimonials-section {
    padding: 8rem 0;
    background: var(--white);
    position: relative;
    overflow: hidden;
}

.testimonials-section::before {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    width: 30%;
    height: 100%;
    background: var(--gray-50);
    clip-path: polygon(100% 0, 0 0, 100% 100%);
    z-index: 1;
}

.testimonials-container {
    position: relative;
    z-index: 5;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}

.testimonial-card {
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    position: relative;
    transition: all 0.3s ease;
    overflow: hidden;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 0;
    left: 20px;
    font-size: 8rem;
    line-height: 1;
    color: rgba(0, 0, 0, 0.05);
    font-family: Georgia, serif;
}

.testimonial-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.testimonial-card-1 {
    grid-column: 1 / span 5;
    grid-row: 1;
    background: var(--white);
    border: 1px solid var(--gray-100);
    z-index: 5;
}

.testimonial-card-2 {
    grid-column: 6 / span 4;
    grid-row: 1;
    background: var(--gradient-primary);
    color: var(--white);
    z-index: 6;
}

.testimonial-card-3 {
    grid-column: 10 / span 3;
    grid-row: 1;
    background: var(--white);
    border: 1px solid var(--gray-100);
    z-index: 5;
}

.testimonial-card-4 {
    grid-column: 1 / span 4;
    grid-row: 2;
    background: var(--gradient-secondary);
    color: var(--white);
    z-index: 5;
}

.testimonial-card-5 {
    grid-column: 5 / span 4;
    grid-row: 2;
    background: var(--white);
    border: 1px solid var(--gray-100);
    z-index: 5;
}

.testimonial-card-6 {
    grid-column: 9 / span 4;
    grid-row: 2;
    background: var(--white);
    border: 1px solid var(--gray-100);
    z-index: 5;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 2rem;
    position: relative;
    z-index: 10;
    line-height: 1.8;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.author-image {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 1rem;
    object-fit: cover;
}

.author-name {
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.author-position {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Creative footer with overlapping elements */
.footer {
    background: var(--gray-900);
    color: var(--white);
    padding: 8rem 0 2rem;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: -80px;
    left: 0;
    right: 0;
    height: 100px;
    background: var(--white);
    clip-path: polygon(0 0, 33% 100%, 66% 0, 100% 100%);
}

.footer-container {
    position: relative;
    z-index: 10;
}

.footer-logo {
    margin-bottom: 2.5rem;
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 4rem;
}

.footer-about p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 2rem;
    line-height: 1.8;
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-section h3 {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--primary-color);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 1rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    padding-left: 1.5rem;
}

.footer-links a::before {
    content: '→';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--white);
    padding-left: 2rem;
}

.footer-links a:hover::before {
    left: 0.5rem;
}

.contact-info p {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.7);
}

.contact-info span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    margin-right: 1rem;
}

.newsletter-form {
    position: relative;
    margin-top: 1rem;
}

.newsletter-form input {
    width: 100%;
    padding: 1rem 1.5rem;
    border: none;
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.newsletter-form input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.footer .newsletter-form button {
    position: absolute;
    right: 5px;
    top: 5px;
    bottom: 5px;
    border: none;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50px;
    padding: 0 1.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    width: auto;
}

.newsletter-form button:hover {
    background: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.animate {
    opacity: 1;
    transform: translateY(0);
}

.slide-up {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

.slide-up.animate {
    opacity: 1;
    transform: translateY(0);
}

.scale-in {
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.6s ease;
}

.scale-in.animate {
    opacity: 1;
    transform: scale(1);
}

/* Responsiveness */
@media (max-width: 1200px) {
    .paths-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .path-card-1, .path-card-2, .path-card-3, .path-card-4 {
        grid-column: auto;
        grid-row: auto;
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .testimonial-card-1, .testimonial-card-2, .testimonial-card-3, 
    .testimonial-card-4, .testimonial-card-5, .testimonial-card-6 {
        grid-column: auto;
        grid-row: auto;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 3rem;
    }
}

@media (max-width: 992px) {
    .hero {
        grid-template-columns: 1fr;
    }
    
    .hero-right {
        display: none;
    }
    
    .hero-left {
        justify-content: center;
        text-align: center;
        padding: 6rem 2rem;
    }
    
    .hero-content {
        max-width: 600px;
    }
    
    .cta-container {
        justify-content: center;
    }
    
    .language-hub {
        height: 400px;
    }
    
    .language-orbit {
        width: 300px;
        height: 300px;
    }
    
    .timeline-content {
        width: 100%;
        margin: 0 0 2rem;
    }
    
    .timeline-line {
        left: 0;
    }
    
    .timeline-dot {
        left: 0;
    }
    
    .timeline-item:nth-child(odd) .timeline-date,
    .timeline-item:nth-child(even) .timeline-date {
        position: relative;
        left: auto;
        right: auto;
        text-align: left;
        margin-bottom: 1rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        transition: transform 0.3s ease;
        z-index: 1000;
    }
    
    .nav-links.active {
        transform: translateY(0);
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .paths-grid, .stats-grid, .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-section {
        margin-bottom: 1rem;
    }
    
    .language-hub {
        height: 300px;
    }
    
    .language-orbit {
        width: 250px;
        height: 250px;
    }
    
    .language-item {
        width: 70px;
        height: 70px;
        font-size: 1rem;
    }
    
    .language-center {
        width: 100px;
        height: 100px;
        font-size: 2rem;
    }
    
    .footer .newsletter-form button {
        position: relative;
        width: 100%;
        right: auto;
        top: auto;
        bottom: auto;
        margin-top: 0.5rem;
    }
}