/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--dark-color) 0%, #1e293b 100%);
    color: white;
    padding: 80px 5%;
    position: relative;
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
    flex-wrap: wrap;
}

.hero-content {
    flex: 1;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.highlight {
    color: var(--secondary-color);
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: #cbd5e1;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    margin-top: 2rem;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--secondary-color);
}

.stat-label {
    font-size: 0.9rem;
    color: #94a3b8;
}

.hero-image {
    flex: 1;
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    animation: float 3s ease-in-out infinite;
}

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

/* Features Section */
.features-section {
    padding: 80px 5%;
    background: white;
}

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

.feature-card {
    text-align: center;
    padding: 2rem;
    transition: all 0.3s ease;
}

.feature-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature-card h3 {
    margin-bottom: 0.5rem;
}

/* Popular Courses */
.popular-courses {
    padding: 80px 5%;
    background: #f1f5f9;
}

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

/* Testimonials Section */
.testimonials-section {
    padding: 80px 5%;
    background: white;
}

.testimonial-slider {
    display: flex;
    gap: 2rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding: 1rem;
}

.testimonial-card {
    min-width: 320px;
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    scroll-snap-align: start;
}

.testimonial-card i {
    color: var(--secondary-color);
    font-size: 2rem;
    margin-bottom: 1rem;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 1rem;
}

.testimonial-author {
    font-weight: 600;
    color: var(--primary-color);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    text-align: center;
    padding: 60px 5%;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.btn-large {
    padding: 15px 40px;
    font-size: 1.1rem;
    margin-top: 1rem;
}