:root {
    --primary-color: #6366F1;
    --secondary-color: #8B5CF6;
    --accent-color: #EC4899;
    --dark-bg: #0F172A;
    --dark-surface: #1E293B;
    --dark-card: #0F1628;
    --light-text: #F8FAFC;
    --muted-text: #94A3B8;
    --border-color: #334155;
    --success-color: #22C55E;
    --gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color), var(--accent-color));
}

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

body {
    font-family: 'Space Grotesk', sans-serif;
    background-color: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
}

.logo {
    font-size: 2rem;
}

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

.nav-links a {
    color: var(--muted-text);
    text-decoration: none;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--light-text);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.gradient-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.1), transparent 50%);
}

#particles {
    position: absolute;
    width: 100%;
    height: 100%;
}

.hero-content {
    text-align: center;
    z-index: 1;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--muted-text);
    max-width: 700px;
    margin: 0 auto 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    color: var(--muted-text);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Buttons */
.btn {
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    display: inline-block;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(99, 102, 241, 0.3);
}

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

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

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

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

.btn-large {
    padding: 1rem 3rem;
    font-size: 1.125rem;
}

/* Sections */
section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: var(--muted-text);
    font-size: 1.125rem;
    margin-bottom: 3rem;
}

/* Learning Approach Section */
.learning-approach {
    background: var(--dark-surface);
}

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

.approach-card {
    background: var(--dark-bg);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all 0.3s;
}

.approach-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.approach-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.approach-card h3 {
    margin-bottom: 1rem;
}

.approach-card p {
    color: var(--muted-text);
}

/* Courses Section */
.courses {
    background: var(--dark-bg);
}

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

.course-card {
    background: var(--dark-surface);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    position: relative;
    transition: all 0.3s;
}

.course-card.featured {
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.course-badge {
    position: absolute;
    top: -10px;
    right: 20px;
    background: var(--gradient);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.course-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.course-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

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

.course-features {
    list-style: none;
    margin-bottom: 1.5rem;
}

.course-features li {
    padding: 0.5rem 0;
    color: var(--muted-text);
}

.course-topics {
    background: var(--dark-bg);
    padding: 1.5rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
}

.course-topics h4 {
    margin-bottom: 1rem;
    font-size: 1rem;
    color: var(--light-text);
}

.course-topics ul {
    list-style: none;
}

.course-topics li {
    padding: 0.25rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--muted-text);
    font-size: 0.875rem;
}

.course-topics li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* Membership Section */
.membership {
    background: var(--dark-surface);
}

.membership-card {
    background: var(--dark-bg);
    border: 2px solid var(--primary-color);
    border-radius: 1.5rem;
    overflow: hidden;
    max-width: 900px;
    margin: 0 auto;
}

.membership-header {
    background: var(--gradient);
    padding: 2rem;
    text-align: center;
}

.membership-header h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.membership-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.5rem;
}

.membership-price .price {
    font-size: 3rem;
    font-weight: 700;
}

.membership-price .period {
    font-size: 1.25rem;
    opacity: 0.8;
}

.membership-content {
    padding: 3rem;
}

.membership-features h4 {
    margin-bottom: 2rem;
    font-size: 1.25rem;
}

.membership-features ul {
    list-style: none;
}

.membership-features li {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    align-items: flex-start;
}

.feature-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.membership-features strong {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--light-text);
}

.membership-features p {
    color: var(--muted-text);
    font-size: 0.875rem;
}

.membership-cta {
    text-align: center;
    margin-top: 3rem;
}

.membership-note {
    margin-top: 1rem;
    color: var(--muted-text);
    font-size: 0.875rem;
}

/* Livestreams Section */
.livestreams {
    background: var(--dark-bg);
}

.livestream-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.livestream-card {
    background: var(--dark-surface);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
}

.livestream-card h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.livestream-card ul {
    list-style: none;
}

.livestream-card li {
    padding: 0.75rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--muted-text);
}

.livestream-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
}

.livestream-schedule h3 {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.livestream-item {
    background: var(--dark-card);
    padding: 1.5rem;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 1rem;
    align-items: center;
    border: 1px solid var(--border-color);
}

.livestream-date {
    font-weight: 600;
    color: var(--secondary-color);
}

.livestream-topic {
    color: var(--light-text);
}

.livestream-status {
    font-size: 0.875rem;
    color: var(--success-color);
}

/* Community Section */
.community {
    background: var(--dark-surface);
}

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

.community-card {
    background: var(--dark-bg);
    padding: 2.5rem;
    border-radius: 1rem;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.community-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.community-icon {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.community-card h3 {
    margin-bottom: 1rem;
}

.community-card p {
    color: var(--muted-text);
    margin-bottom: 1.5rem;
}

/* Pricing Section */
.pricing-section {
    background: var(--dark-bg);
}

.pricing-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--dark-surface);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2.5rem;
    text-align: center;
    position: relative;
    transition: all 0.3s;
}

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

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

.pricing-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.pricing-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.pricing-card p {
    color: var(--muted-text);
    margin-bottom: 2rem;
}

.pricing-card ul {
    list-style: none;
    margin-bottom: 2rem;
    text-align: left;
}

.pricing-card li {
    padding: 0.75rem 0;
    color: var(--muted-text);
}

.pricing-footer {
    margin-top: auto;
}

.pricing-footer p {
    font-size: 0.875rem;
    color: var(--muted-text);
    margin-bottom: 0.5rem;
}

.pricing-footer .price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.pricing-footer .price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--muted-text);
}

/* Testimonials Section */
.testimonials {
    background: var(--dark-surface);
}

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

.testimonial-card {
    background: var(--dark-bg);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
}

.stars {
    margin-bottom: 1rem;
    color: #FBBF24;
}

.testimonial-card p {
    color: var(--light-text);
    font-style: italic;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.testimonial-author strong {
    display: block;
    color: var(--light-text);
    margin-bottom: 0.25rem;
}

.testimonial-author span {
    color: var(--muted-text);
    font-size: 0.875rem;
}

/* Contact Section */
.contact {
    background: var(--dark-bg);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 900px;
    margin: 0 auto;
}

.newsletter h3,
.contact-info h3 {
    margin-bottom: 1rem;
}

.newsletter p,
.contact-info p {
    color: var(--muted-text);
    margin-bottom: 1.5rem;
}

.newsletter-form {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.newsletter-input {
    flex: 1;
    padding: 0.75rem 1.5rem;
    background: var(--dark-surface);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--light-text);
    font-size: 1rem;
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.newsletter-note {
    color: var(--muted-text);
    font-size: 0.875rem;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--muted-text);
    text-decoration: none;
    transition: color 0.3s;
}

.contact-method:hover {
    color: var(--primary-color);
}

/* Footer */
.footer {
    padding: 3rem 0 2rem;
    border-top: 1px solid var(--border-color);
    background: var(--dark-surface);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a,
.footer-social a {
    color: var(--muted-text);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-social {
    display: flex;
    gap: 1.5rem;
}

.footer-bottom {
    text-align: center;
    color: var(--muted-text);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .course-grid {
        grid-template-columns: 1fr;
    }
    
    .course-card.featured {
        transform: none;
    }
    
    .livestream-info {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
}