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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8fafc;
}

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

/* Color Variables */
:root {
    --primary-color: #1a2332;
    --secondary-color: #ff6b6b;
    --accent-color: #64ffda;
    --text-light: #6b7280;
    --text-dark: #1f2937;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --border-light: #e5e7eb;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.2;
}

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

h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

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

p {
    line-height: 1.5;
    color: var(--text-light);
    margin-bottom: 1rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    background-color: #e55a5a;
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* Header */
.header {
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    width: 40px;
    height: 40px;
}

.brand-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-dark);
    text-decoration: none;
}

/* Hero Section */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--bg-light) 0%, #e0f2fe 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.hero-text p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

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

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

.hero-img,
.feature-img,
.course-img,
.critiques-img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    object-fit: cover;
}

.course-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 12px 12px 0 0;
}
/* Section Styling */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    color: var(--primary-color);
}

/* About Section */
.about {
    background-color: var(--bg-white);
}

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

.feature-card {
    text-align: center;
    padding: 2rem;
    border-radius: 12px;
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.feature-icon {
    margin-bottom: 1.5rem;
}

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

/* App Features */
.app-features {
    background-color: var(--bg-light);
}

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

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.feature-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.feature-icon-small {
    flex-shrink: 0;
}

.feature-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.feature-visual {
    text-align: center;
}

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

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

.course-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-light);
}

.course-image {
    height: 200px;
    overflow: hidden;
    border-radius: 12px 12px 0 0;
}

.course-content {
    padding: 1.5rem;
}

.course-content h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.course-meta {
    display: flex;
    gap: 1rem;
    margin: 1rem 0;
}

.course-level, .course-duration {
    font-size: 0.875rem;
    padding: 4px 8px;
    border-radius: 4px;
    background-color: var(--bg-light);
    color: var(--text-light);
}

.course-price {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

/* Critiques Section */
.critiques {
    background-color: var(--bg-light);
}

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

.critiques-features {
    list-style: none;
    margin: 2rem 0;
}

.critiques-features li {
    padding: 0.5rem 0;
    color: var(--text-light);
    position: relative;
    padding-left: 1.5rem;
}

.critiques-features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

/* Portfolio Tracks */
.portfolio-tracks {
    background-color: var(--bg-white);
}

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

.track-card {
    text-align: center;
    padding: 2rem;
    border-radius: 12px;
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-light);
}

.track-icon {
    margin-bottom: 1.5rem;
}

.track-duration {
    display: inline-block;
    margin-top: 1rem;
    padding: 6px 12px;
    background-color: var(--accent-color);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

/* Why Choose Us */
.why-choose {
    background-color: var(--bg-light);
}

.why-choose h2 {
    text-align: center;
    margin-bottom: 4rem;
}

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

.benefit-item {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.benefit-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.benefit-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* Testimonials */
.testimonials {
    background-color: var(--bg-white);
}

.testimonials h2 {
    text-align: center;
    margin-bottom: 4rem;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.testimonial-content p {
    font-style: italic;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
}

.testimonial-author h4 {
    margin-bottom: 0.25rem;
    font-size: 1rem;
}

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

/* Get Started */
.get-started {
    background: linear-gradient(135deg, var(--primary-color) 0%, #2d3748 100%);
    color: white;
}

.get-started-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.get-started h2 {
    color: white;
    margin-bottom: 1rem;
}

.get-started p {
    color: #cbd5e0;
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.get-started-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Contacts */
.contacts {
    background-color: var(--bg-light);
}

.contacts-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h2 {
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-icon {
    flex-shrink: 0;
}

.contact-item h3 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.contact-item a {
    color: var(--secondary-color);
    text-decoration: none;
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.contact-form h3 {
    margin-bottom: 1.5rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-light);
    border-radius: 8px;
    margin-bottom: 1rem;
    font-family: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: white;
    padding: 3rem 0 1rem;
}

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

.footer-brand p {
    color: #cbd5e0;
    margin-top: 1rem;
}

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

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

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

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

.footer-column ul li a {
    color: #cbd5e0;
    text-decoration: none;
}

.footer-column ul li a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 1rem;
    text-align: center;
}

.footer-bottom p {
    color: #9ca3af;
}

/* Placeholder Images */
.placeholder-image {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 2rem;
    background: linear-gradient(135deg, #f8fafc 0%, #e0f2fe 100%);
    border-radius: 8px;
    min-height: 200px;
}

.placeholder-image p {
    font-size: 0.875rem;
    color: var(--text-light);
    text-align: center;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .hero-content,
    .app-features-content,
    .critiques-content,
    .contacts-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero {
        padding: 60px 0;
    }

    section {
        padding: 60px 0;
    }

    .features-grid,
    .courses-grid,
    .tracks-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
    }

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

    .hero-cta,
    .get-started-cta {
        justify-content: center;
    }

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

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }

    .hero-text p {
        font-size: 1rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .feature-card,
    .course-card,
    .track-card,
    .benefit-item {
        padding: 1.5rem;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Button hover effects */
.btn {
    transition: all 0.3s ease;
}

/* Card hover effects */
.feature-card,
.course-card,
.track-card,
.benefit-item,
.testimonial-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover,
.course-card:hover,
.track-card:hover,
.benefit-item:hover,
.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}