:root {
    --leren-primary: #00D9A5;
    --leren-primary-dark: #00B88A;
    --leren-secondary: #00A8CC;
    --leren-dark: #0A0E27;
    --leren-dark-light: #1A1F3A;
    --leren-gray: #2A2F4A;
    --leren-text: #E8E9F0;
    --leren-text-muted: #A0A5B8;
    
    --gradient-primary: linear-gradient(135deg, var(--leren-primary) 0%, var(--leren-secondary) 100%);
    --gradient-dark: linear-gradient(135deg, var(--leren-dark) 0%, var(--leren-dark-light) 100%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: #000000;
    color: var(--leren-text);
    overflow-x: hidden;
    line-height: 1.6;
}

.cursor-glow {
    position: fixed;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 217, 165, 0.15) 0%, transparent 70%);
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

body:hover .cursor-glow {
    opacity: 1;
}

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.5rem 2rem;
    background: transparent;
}

.nav-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
}

.logo {
    display: flex;
    align-items: center;
}

.nav-logo {
    height: 32px;
    width: auto;
    opacity: 0.9;
    transition: opacity 0.3s ease;
}

.nav-logo:hover {
    opacity: 1;
}

.nav-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(0, 217, 165, 0.1);
    border: 1px solid var(--leren-primary);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--leren-primary);
    letter-spacing: 1px;
    text-transform: uppercase;
    white-space: nowrap;
    flex-shrink: 0;
}

.hero-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 8rem 2rem 4rem;
    position: relative;
    overflow: hidden;
}

@media (max-width: 768px) {
    .hero-section {
        padding: 4rem 5px 2rem;
        min-height: auto;
    }
    
    .hero-sphere-wrapper {
        padding: 0 5px;
    }
}

.hero-sphere-wrapper {
    width: 100%;
    max-width: 1600px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3rem;
}

@media (min-width: 1024px) {
    .hero-section {
        min-height: auto;
        padding: 4rem 5px 2rem;
    }
    
    .hero-sphere-wrapper {
        flex-direction: row;
        align-items: center;
        gap: 4rem;
        max-width: 100%;
        padding: 0 5px;
    }
}

.hero-content {
    max-width: 1200px;
    text-align: center;
    position: relative;
    z-index: 1;
    flex: 1;
}

@media (min-width: 1024px) {
    .hero-content {
        text-align: left;
        max-width: 500px;
    }
}

.hero-title {
    font-size: clamp(3rem, 8vw, 7rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: clamp(2.25rem, 4.5vw, 3.5rem);
        margin-bottom: 1rem;
    }
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    color: var(--leren-text-muted);
    margin-bottom: 4rem;
    font-weight: 300;
}

@media (min-width: 1024px) {
    .hero-subtitle {
        font-size: clamp(0.9rem, 1.5vw, 1.125rem);
        margin-bottom: 1.5rem;
    }
}

.hero-stats {
    display: flex;
    gap: 4rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 4rem;
}

@media (min-width: 1024px) {
    .hero-stats {
        margin-top: 2rem;
        gap: 3rem;
    }
}

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

.stat-number {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

@media (min-width: 1024px) {
    .stat-number {
        font-size: clamp(1.75rem, 3vw, 2.5rem);
    }
}

.stat-label {
    font-size: 0.875rem;
    color: var(--leren-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

@media (min-width: 1024px) {
    .stat-label {
        font-size: 0.75rem;
    }
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 10;
    animation: scrollBounce 2s ease-in-out infinite;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid var(--leren-primary);
    border-bottom: 2px solid var(--leren-primary);
    transform: rotate(45deg);
}

@keyframes scrollBounce {
    0%, 100% { 
        opacity: 0.4;
        transform: translateX(-50%) translateY(0);
    }
    50% { 
        opacity: 1;
        transform: translateX(-50%) translateY(8px);
    }
}

.mosaic-section {
    padding: 8rem 2rem;
    max-width: 1600px;
    margin: 0 auto;
}

@media (min-width: 1024px) {
    .mosaic-section {
        padding: 3rem 2rem;
    }
}

.mosaic-header {
    text-align: center;
    margin-bottom: 4rem;
}

@media (min-width: 1024px) {
    .mosaic-header {
        margin-bottom: 2rem;
    }
}

.section-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.sphere-container {
    width: 100%;
    height: 600px;
    margin-top: 3rem;
    position: relative;
    overflow: hidden;
}


@media (min-width: 1024px) {
    .sphere-container {
        height: 600px;
        width: calc(100% - 10px);
        margin-top: 0;
        flex-shrink: 0;
    }
}

@media (min-width: 1440px) {
    .sphere-container {
        height: 700px;
        width: calc(100% - 10px);
    }
}

#sphereCanvas {
    width: 100%;
    height: 100%;
    display: block;
}

.mosaic-item {
    aspect-ratio: 16 / 9;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    background: var(--leren-gray);
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.mosaic-item:hover {
    transform: scale(1.05) translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 217, 165, 0.3);
    z-index: 10;
}

.mosaic-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.mosaic-item:hover img {
    transform: scale(1.1);
}

.mosaic-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 217, 165, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mosaic-item:hover::after {
    opacity: 1;
}

.achievements-section {
    padding: 8rem 2rem;
    background: #000000;
    margin-top: 4rem;
}

@media (min-width: 1024px) {
    .achievements-section {
        padding: 3rem 2rem;
        margin-top: 2rem;
    }
}

.achievements-content {
    max-width: 1400px;
    margin: 0 auto;
}

.achievements-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: 4rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@media (min-width: 1024px) {
    .achievements-title {
        margin-bottom: 2rem;
    }
}

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

.achievement-card {
    padding: 2.5rem;
    background: #000000;
    border: 1px solid rgba(0, 217, 165, 0.1);
    border-radius: 20px;
    text-align: center;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.achievement-card:hover {
    transform: translateY(-10px);
    border-color: var(--leren-primary);
}

.achievement-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: block;
}

.achievement-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--leren-text);
}

.achievement-card p {
    color: var(--leren-text-muted);
    line-height: 1.6;
}

.final-quote {
    padding: 8rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

@media (min-width: 1024px) {
    .final-quote {
        padding: 3rem 2rem;
    }
}


.final-quote-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.final-quote h2 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.final-quote p {
    font-size: 1.25rem;
    color: var(--leren-text-muted);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2.5rem;
    background: var(--gradient-primary);
    color: var(--leren-dark);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.125rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 217, 165, 0.4);
}

.cta-button svg {
    transition: transform 0.3s ease;
}

.cta-button:hover svg {
    transform: translateX(5px);
}

.footer {
    padding: 4rem 2rem 2rem;
    background: #000000;
    border-top: 1px solid rgba(0, 217, 165, 0.1);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
}

.footer-brand {
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
}

.footer-logo {
    height: 40px;
    width: auto;
    opacity: 0.9;
    transition: opacity 0.3s ease;
}

.footer-logo:hover {
    opacity: 1;
}

.footer-text {
    color: var(--leren-text-muted);
    margin-bottom: 1.5rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--leren-text);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-links span {
    color: var(--leren-text-muted);
}

.footer-year {
    color: var(--leren-text-muted);
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    .nav {
        padding: 1rem 1rem;
    }
    
    .nav-logo {
        height: 24px;
    }
    
    .nav-badge {
        padding: 0.4rem 1rem;
        font-size: 0.65rem;
        letter-spacing: 0.5px;
    }
    
    .hero {
        padding: 6rem 1rem 3rem;
        min-height: auto;
    }
    
    .hero-title {
        font-size: clamp(2rem, 10vw, 4rem);
        margin-bottom: 1rem;
    }
    
    .hero-subtitle {
        font-size: clamp(1rem, 4vw, 1.25rem);
        margin-bottom: 2rem;
    }
    
    .hero-stats {
        gap: 2rem;
        margin-top: 2rem;
    }
    
    .stat-number {
        font-size: clamp(2rem, 8vw, 3rem);
    }
    
    .stat-label {
        font-size: 0.75rem;
    }
    
    .hero-scroll-indicator {
        bottom: 1rem;
    }
    
    .scroll-arrow {
        width: 20px;
        height: 20px;
    }
    
    .mosaic-section {
        padding: 4rem 1rem;
    }
    
    .mosaic-header {
        margin-bottom: 2rem;
    }
    
    .section-title {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
        margin-bottom: 0.75rem;
    }
    
    .section-subtitle {
        font-size: clamp(1rem, 4vw, 1.125rem);
    }
    
    .sphere-container {
        height: 400px;
        margin-top: 2rem;
        width: calc(100% - 10px);
    }
    
    .achievements-section {
        padding: 4rem 1rem;
        margin-top: 2rem;
    }
    
    .achievements-title {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
        margin-bottom: 2rem;
    }
    
    .achievements-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .achievement-card {
        padding: 1.5rem;
    }
    
    .achievement-icon {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }
    
    .achievement-card h3 {
        font-size: 1.25rem;
    }
    
    .achievement-card p {
        font-size: 0.9rem;
    }
    
    .final-quote {
        padding: 4rem 1rem;
    }
    
    .final-quote h2 {
        font-size: clamp(1.5rem, 6vw, 2.5rem);
        margin-bottom: 1rem;
    }
    
    .final-quote p {
        font-size: clamp(1rem, 4vw, 1.125rem);
        margin-bottom: 2rem;
    }
    
    .cta-button {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }
    
    .footer {
        padding: 3rem 1rem 1.5rem;
    }
    
    .footer-logo {
        height: 32px;
    }
    
    .footer-text {
        font-size: 0.9rem;
        margin-bottom: 1rem;
    }
    
    .footer-links {
        gap: 0.75rem;
        font-size: 0.875rem;
        margin-bottom: 1rem;
    }
    
    .footer-year {
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .cursor-glow {
        display: none;
    }
    
    .nav {
        padding: 0.75rem 0.75rem;
    }
    
    .nav-logo {
        height: 20px;
    }
    
    .nav-badge {
        padding: 0.35rem 0.75rem;
        font-size: 0.6rem;
        letter-spacing: 0.3px;
    }
    
    .hero {
        padding: 5rem 0.75rem 2.5rem;
    }
    
    .hero-stats {
        gap: 1.5rem;
        flex-direction: column;
    }
    
    .stat-item {
        width: 100%;
    }
    
    .mosaic-section {
        padding: 3rem 0.75rem;
    }
    
    .sphere-container {
        height: 350px;
    }
    
    .achievements-section {
        padding: 3rem 0.75rem;
    }
    
    .achievement-card {
        padding: 1.25rem;
    }
    
    .final-quote {
        padding: 3rem 0.75rem;
    }
    
    .cta-button {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
        width: 100%;
        justify-content: center;
    }
    
    .footer {
        padding: 2.5rem 0.75rem 1.25rem;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .footer-links span {
        display: none;
    }
}

@media (max-width: 360px) {
    .nav {
        padding: 0.75rem 0.5rem;
    }
    
    .nav-logo {
        height: 18px;
    }
    
    .nav-badge {
        font-size: 0.5rem;
        padding: 0.25rem 0.5rem;
        letter-spacing: 0.2px;
    }
    
    .hero {
        padding: 4.5rem 0.5rem 2rem;
    }
    
    .hero-title {
        font-size: clamp(1.5rem, 12vw, 2.5rem);
        gap: 0.25rem;
    }
    
    .hero-subtitle {
        font-size: clamp(0.9rem, 4vw, 1rem);
    }
    
    .hero-stats {
        gap: 1rem;
    }
    
    .stat-number {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
    }
    
    .stat-label {
        font-size: 0.7rem;
    }
    
    .mosaic-section {
        padding: 2.5rem 0.5rem;
    }
    
    .mosaic-header {
        margin-bottom: 1.5rem;
    }
    
    .section-title {
        font-size: clamp(1.25rem, 10vw, 1.75rem);
        margin-bottom: 0.5rem;
    }
    
    .section-subtitle {
        font-size: clamp(0.875rem, 4vw, 1rem);
    }
    
    .sphere-container {
        height: 300px;
        margin-top: 1.5rem;
    }
    
    .achievements-section {
        padding: 2.5rem 0.5rem;
    }
    
    .achievements-title {
        font-size: clamp(1.25rem, 10vw, 1.75rem);
        margin-bottom: 1.5rem;
    }
    
    .achievement-card {
        padding: 1rem;
    }
    
    .achievement-icon {
        font-size: 2rem;
        margin-bottom: 0.75rem;
    }
    
    .achievement-card h3 {
        font-size: 1.125rem;
        margin-bottom: 0.75rem;
    }
    
    .achievement-card p {
        font-size: 0.85rem;
    }
    
    .final-quote {
        padding: 2.5rem 0.5rem;
    }
    
    .final-quote h2 {
        font-size: clamp(1.25rem, 8vw, 2rem);
    }
    
    .final-quote p {
        font-size: clamp(0.9rem, 4vw, 1rem);
    }
    
    .cta-button {
        padding: 0.7rem 1.25rem;
        font-size: 0.85rem;
    }
    
    .footer {
        padding: 2rem 0.5rem 1rem;
    }
    
    .footer-logo {
        height: 28px;
    }
    
    .footer-text {
        font-size: 0.85rem;
    }
    
    .footer-links {
        font-size: 0.8rem;
    }
    
    .footer-year {
        font-size: 0.7rem;
    }
}