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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
}

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

/* Header and Navigation */
header {
    background: #1a1a2e;
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #667eea;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px 0;
    text-align: center;
}

.hero-banner {
    margin-bottom: 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-banner a {
    display: inline-block;
    cursor: pointer;
}

.banner-image {
    max-width: 100%;
    width: 800px;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-banner a:hover .banner-image {
    transform: scale(1.02);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-content h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    font-weight: 400;
    opacity: 0.9;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.btn {
    padding: 15px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary {
    background: white;
    color: #667eea;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background: white;
    color: #667eea;
}

.btn-large {
    padding: 18px 45px;
    font-size: 1.2rem;
}

.offer-text {
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 1rem;
}

/* About Section */
.about {
    padding: 80px 0;
    background: #f8f9fa;
}

.about h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #1a1a2e;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text h3 {
    font-size: 2rem;
    color: #667eea;
    margin-bottom: 0.5rem;
}

.about-text .title {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 1.5rem;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    line-height: 1.8;
}

/* Course Overview */
.course-overview {
    padding: 80px 0;
    background: white;
}

.course-overview h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #1a1a2e;
}

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

.feature-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}

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

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1a1a2e;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* Curriculum Section */
.curriculum {
    padding: 80px 0;
    background: #f8f9fa;
}

.curriculum h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #1a1a2e;
}

.curriculum-list {
    max-width: 900px;
    margin: 0 auto;
}

.curriculum-item {
    display: flex;
    align-items: start;
    gap: 2rem;
    background: white;
    padding: 2rem;
    margin-bottom: 1.5rem;
    border-radius: 15px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.curriculum-item:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.curriculum-item .number {
    font-size: 2rem;
    font-weight: 700;
    color: #667eea;
    min-width: 60px;
}

.curriculum-item h3 {
    font-size: 1.5rem;
    color: #1a1a2e;
    margin-bottom: 0.5rem;
}

.curriculum-item p {
    color: #666;
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

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

.cta-section > p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: white;
    text-align: center;
}

.contact h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #1a1a2e;
}

.contact > p {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 2rem;
}

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

.contact-link {
    display: inline-block;
    padding: 15px 35px;
    background: #667eea;
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.contact-link:hover {
    background: #764ba2;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

/* Footer */
footer {
    background: #1a1a2e;
    color: white;
    padding: 2rem 0;
    text-align: center;
}

footer p {
    margin: 0.5rem 0;
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        gap: 1rem;
    }

    .banner-image {
        width: 100%;
        border-radius: 10px;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content h2 {
        font-size: 1.5rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

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

    .curriculum-item {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .nav-links {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .logo h1 {
        font-size: 1.5rem;
    }
}