/* Global Styles */
:root {
    --primary-color: #4361ee;
    --secondary-color: #3a0ca3;
    --accent-color: #7209b7;
    --background-color: #f8f9fa;
    --text-color: #333;
    --light-text: #6c757d;
    --white: #fff;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1rem;
    line-height: 1.2;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--secondary-color);
}

section {
    padding: 5rem 0;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* Header and Navigation */
header {
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    color: var(--white);
    padding: 0 0 3rem;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    background-color: rgba(0, 0, 0, 0.1);
}

.logo h1 {
    font-size: 1.5rem;
    margin-bottom: 0;
}

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

.nav-links a {
    color: var(--white);
    font-weight: 500;
}

.nav-links a:hover {
    color: rgba(255, 255, 255, 0.7);
}

.cta-button {
    background-color: var(--primary-color);
    padding: 0.5rem 1.5rem;
    border-radius: var(--border-radius);
}

.cta-button:hover {
    background-color: var(--white);
    color: var(--primary-color);
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 3rem 5%;
    gap: 2rem;
}

.hero-content {
    flex: 1;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero-content h2 {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.hero-content p {
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.primary-button, .secondary-button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
}

.primary-button {
    background-color: var(--primary-color);
    color: var(--white);
}

.primary-button:hover {
    background-color: var(--secondary-color);
    color: var(--white);
}

.secondary-button {
    background-color: transparent;
    border: 2px solid var(--white);
    color: var(--white);
}

.secondary-button:hover {
    background-color: var(--white);
    color: var(--secondary-color);
}

.hero-video {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.video-placeholder {
    background-color: rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 500px;
    height: 300px;
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
}

.video-placeholder:hover {
    background-color: rgba(0, 0, 0, 0.3);
}

.video-placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.video-placeholder.small {
    height: 150px;
}

.video-placeholder.small i {
    font-size: 2rem;
}

/* Features Section */
.features {
    text-align: center;
}

.features h2 {
    margin-bottom: 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 2rem;
    padding: 0 5%;
}

.feature-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

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

.feature-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Courses Section */
.courses {
    background-color: #f1f3f5;
    text-align: center;
}

.courses h2 {
    margin-bottom: 3rem;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    padding: 0 5%;
}

.course-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

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

.course-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
}

.course-content {
    padding: 1.5rem;
}

.course-content p {
    margin-bottom: 1.5rem;
    color: var(--light-text);
}

.course-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 0.5rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 500;
}

.course-button:hover {
    background-color: var(--secondary-color);
    color: var(--white);
}

.course-video {
    margin-bottom: 1.5rem;
}

/* Instructors Section */
.instructors {
    text-align: center;
}

.instructors h2 {
    margin-bottom: 3rem;
}

.instructors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 3rem;
    padding: 0 5%;
    justify-content: center;
}

.instructor-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    padding-bottom: 1.5rem;
}

.instructor-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
}

.instructor-card h3 {
    margin-top: 1.5rem;
}

.instructor-title {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

.instructor-bio {
    padding: 0 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--light-text);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.social-links a {
    display: inline-block;
    width: 40px;
    height: 40px;
    background-color: #f1f3f5;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

/* Testimonials Section */
.testimonials {
    background-color: #f1f3f5;
    text-align: center;
}

.testimonials h2 {
    margin-bottom: 3rem;
}

.testimonials-slider {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    padding: 0 5%;
}

.testimonial {
    flex: 1;
    min-width: 300px;
    max-width: 500px;
}

.testimonial-content {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    position: relative;
}

.testimonial-content::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background-color: var(--white);
    transform: rotate(45deg);
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 2rem;
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-right: 1rem;
}

.testimonial-author h4 {
    margin-bottom: 0.25rem;
    text-align: left;
}

.testimonial-author p {
    color: var(--light-text);
    text-align: left;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    padding: 5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.cta-content {
    flex: 1;
}

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

.cta-content p {
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.cta-video {
    flex: 1;
    display: flex;
    justify-content: center;
}

/* Contact Section */
.contact {
    text-align: center;
}

.contact h2 {
    margin-bottom: 3rem;
}

.contact-container {
    display: flex;
    justify-content: space-between;
    gap: 3rem;
    padding: 0 5%;
}

.contact-form, .contact-info {
    flex: 1;
}

.contact-form {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    text-align: left;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #dee2e6;
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.submit-button {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.submit-button:hover {
    background-color: var(--secondary-color);
}

.contact-info {
    text-align: left;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-info h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.contact-info p {
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

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

.contact-method {
    display: flex;
    align-items: center;
}

.contact-method i {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 1rem;
}

/* Footer */
footer {
    background-color: #343a40;
    color: var(--white);
    padding: 3rem 5% 1rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 3rem;
}

.footer-logo h3 {
    margin-bottom: 1rem;
}

.footer-links {
    display: flex;
    gap: 3rem;
}

.footer-section h4 {
    margin-bottom: 1.5rem;
    color: #adb5bd;
}

.footer-section a {
    display: block;
    color: var(--white);
    margin-bottom: 0.75rem;
}

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

.footer-section .social-links {
    margin-top: 1rem;
}

.footer-section .social-links a {
    background-color: #212529;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #212529;
    font-size: 0.9rem;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .hero, .cta {
        flex-direction: column;
    }
    
    .hero-content, .hero-video, .cta-content, .cta-video {
        text-align: center;
        width: 100%;
    }
    
    .contact-container {
        flex-direction: column;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: var(--primary-color);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition);
        z-index: 100;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .features-grid, .courses-grid, .instructors-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 2rem;
    }
}