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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #2d3748;
    background-color: #ffffff;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
}

/* Gradients */
.gradient-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-bg {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.gradient-bg-light {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
}

/* Buttons */
.cta-button, .cta-button-large, .course-button, .pricing-button {
    display: inline-block;
    padding: 12px 24px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.cta-button-large {
    padding: 16px 32px;
    font-size: 1.1rem;
    font-weight: 600;
}

.cta-button:hover, .cta-button-large:hover, .course-button:hover, .pricing-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(102, 126, 234, 0.1);
}

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

.nav-brand h2 {
    margin: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-menu a {
    text-decoration: none;
    color: #2d3748;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero h1 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #4a5568;
    margin-bottom: 1rem;
}

.hero-description {
    font-size: 1.1rem;
    color: #718096;
    margin-bottom: 2rem;
}

.screening-block {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.1);
}

.screening-block h3 {
    color: #2d3748;
    margin-bottom: 1rem;
}

.screening-benefits {
    list-style: none;
    margin-bottom: 1.5rem;
}

.screening-benefits li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.screening-benefits li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

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

.ai-concept-placeholder {
    margin-bottom: 1rem;
}

.image-caption {
    font-size: 0.9rem;
    color: #718096;
    font-style: italic;
}

/* Section Styles */
section {
    padding: 80px 0;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: #718096;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Offer Section */
.offer {
    background: #f7fafc;
}

.companies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 3rem;
}

.company-card {
    background: white;
    padding: 1.5rem;
    border-radius: 15px;
    text-align: center;
    font-weight: 600;
    color: #2d3748;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

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

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

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.1);
    transition: transform 0.3s ease;
}

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

.feature-card h3 {
    color: #2d3748;
}

/* Courses Section */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.course-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.1);
    transition: transform 0.3s ease;
    position: relative;
}

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

.course-level {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.course-level.beginner {
    background: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
    color: white;
}

.course-level.intermediate {
    background: linear-gradient(135deg, #ed8936 0%, #dd6b20 100%);
    color: white;
}

.course-level.advanced {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.course-level.expert {
    background: linear-gradient(135deg, #e53e3e 0%, #c53030 100%);
    color: white;
}

.course-duration {
    font-size: 0.9rem;
    color: #718096;
    margin-bottom: 1rem;
}

.course-card h3 {
    margin-bottom: 1rem;
    color: #2d3748;
}

.course-card p {
    color: #4a5568;
    margin-bottom: 1.5rem;
}

.course-prereq, .course-projects, .course-bonus {
    background: #f7fafc;
    padding: 1rem;
    border-radius: 10px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.course-button {
    width: 100%;
    margin-top: 1rem;
}

.courses-cta {
    text-align: center;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    padding: 3rem;
    border-radius: 20px;
}

.courses-cta p {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: #2d3748;
}

/* Learning Process Section */
.learning {
    background: #f7fafc;
}

.learning-steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    flex-shrink: 0;
}

.step-content h3 {
    margin-bottom: 1rem;
    color: #2d3748;
}

.step-content ul {
    list-style: none;
}

.step-content li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.step-content li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

/* Why It Works Section */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.benefit-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.1);
    transition: transform 0.3s ease;
}

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

.benefit-card h3 {
    color: #2d3748;
    margin-bottom: 1rem;
}

.benefit-card p {
    color: #718096;
}

.community-bonuses {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    padding: 3rem;
    border-radius: 20px;
}

.community-bonuses h3 {
    text-align: center;
    margin-bottom: 2rem;
    color: #2d3748;
}

.bonuses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.bonus-card {
    background: white;
    padding: 1.5rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.bonus-card h4 {
    color: #2d3748;
    margin-bottom: 0.5rem;
}

.bonus-card p {
    color: #718096;
    font-size: 0.9rem;
}

/* Journey Section */
.journey {
    background: #f7fafc;
}

.journey-flow {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: 1rem;
    align-items: center;
    margin-bottom: 3rem;
}

.journey-stage {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.journey-stage.problems {
    border-left: 5px solid #e53e3e;
}

.journey-stage.solution {
    border-left: 5px solid #ed8936;
}

.journey-stage.result {
    border-left: 5px solid #48bb78;
}

.journey-stage h3 {
    margin-bottom: 1rem;
    color: #2d3748;
}

.journey-stage ul {
    list-style: none;
    margin-bottom: 1rem;
}

.journey-stage li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
    font-size: 0.9rem;
}

.problems li::before {
    content: "✗";
    position: absolute;
    left: 0;
    color: #e53e3e;
    font-weight: bold;
}

.solution li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: #ed8936;
    font-weight: bold;
}

.result li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #48bb78;
    font-weight: bold;
}

.status {
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    text-align: center;
    font-size: 0.8rem;
}

.problems .status {
    background: rgba(229, 62, 62, 0.1);
    color: #e53e3e;
}

.solution .status {
    background: rgba(237, 137, 54, 0.1);
    color: #ed8936;
}

.result .status {
    background: rgba(72, 187, 120, 0.1);
    color: #48bb78;
}

.arrow {
    font-size: 2rem;
    color: #667eea;
    font-weight: bold;
}

.journey-cta {
    text-align: center;
}

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

.pricing-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.1);
    position: relative;
    transition: transform 0.3s ease;
}

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

.pricing-card.popular {
    border: 2px solid #667eea;
    transform: scale(1.05);
}

.popular-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.pricing-card h3 {
    margin-bottom: 1rem;
    color: #2d3748;
}

.pricing-card p {
    color: #718096;
    margin-bottom: 1.5rem;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 1.5rem;
}

.price-note {
    font-size: 1rem;
    color: #718096;
}

.pricing-button {
    width: 100%;
}

/* About Section */
.about {
    background: #f7fafc;
}

.teacher-profile {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    align-items: start;
}

.teacher-image {
    text-align: center;
}

.teacher-image p {
    margin-top: 1rem;
    font-style: italic;
    color: #718096;
}

.teacher-info {
    display: grid;
    gap: 2rem;
}

.info-section {
    background: white;
    padding: 1.5rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.info-section h3 {
    color: #2d3748;
    margin-bottom: 1rem;
    border-bottom: 2px solid #667eea;
    padding-bottom: 0.5rem;
}

.info-section ul {
    list-style: none;
}

.info-section li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.info-section li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
}

/* FAQ Section */
.faq-list {
    max-width: 800px;
    margin: 0 auto 3rem;
}

.faq-item {
    background: white;
    margin-bottom: 1rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background: #f7fafc;
}

.faq-question h3 {
    margin: 0;
    color: #2d3748;
}

.faq-toggle {
    font-size: 1.5rem;
    color: #667eea;
    font-weight: bold;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 1.5rem 1.5rem;
    max-height: 200px;
}

.faq-answer p {
    color: #4a5568;
    margin: 0;
}

.faq-cta {
    text-align: center;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    padding: 2rem;
    border-radius: 20px;
}

.faq-cta p {
    margin-bottom: 1rem;
    color: #2d3748;
}

/* Footer */
.footer {
    background: #2d3748;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand h3 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: #a0aec0;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    margin-bottom: 1rem;
    color: white;
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 0.5rem;
}

.footer-column a {
    color: #a0aec0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-column a:hover {
    color: #667eea;
}

.footer-bottom {
    border-top: 1px solid #4a5568;
    padding-top: 1rem;
    text-align: center;
    color: #a0aec0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .nav-menu {
        display: none;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .journey-flow {
        grid-template-columns: 1fr;
    }
    
    .arrow {
        transform: rotate(90deg);
    }
    
    .teacher-profile {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-on-scroll {
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
}

/* Smooth transitions */
* {
    transition: all 0.3s ease;
}