/* Reset and base styles */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #1f2937;
    background-color: #ffffff;
}

/* CSS Custom Properties */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #7c3aed;
    --accent-color: #06b6d4;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --container-max-width: 1200px;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --transition: all 0.3s ease;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

p {
    margin-bottom: 1rem;
    color: var(--gray-600);
}

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

a:hover {
    color: var(--primary-dark);
}

/* Layout utilities */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 1rem;
}

.section {
    padding: 5rem 0;
}

.section-alt {
    background-color: var(--gray-50);
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 3rem;
}

.section-header h2 {
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--gray-600);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    background: none;
}

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

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

.btn-secondary {
    background-color: var(--gray-600);
    color: white;
    border-color: var(--gray-600);
}

.btn-secondary:hover {
    background-color: var(--gray-700);
    border-color: var(--gray-700);
    color: white;
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Header */
.header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

.nav {
    padding: 1rem 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 1rem;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
}

.nav-logo:hover {
    color: var(--primary-color);
}

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

.nav-menu a {
    font-weight: 500;
    color: var(--gray-700);
    transition: var(--transition);
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--gray-700);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-svg {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    color: white;
    text-align: center;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

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

.service-card {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    text-align: center;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

.service-card h3 {
    color: var(--gray-900);
    margin-bottom: 1rem;
}

/* Courses Section */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

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

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.course-icon {
    padding: 2rem 2rem 1rem;
    text-align: center;
}

.course-card h3 {
    padding: 0 2rem;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.course-card p {
    padding: 0 2rem;
    margin-bottom: 1.5rem;
}

.course-meta {
    display: flex;
    justify-content: space-between;
    padding: 1rem 2rem 2rem;
    border-top: 1px solid var(--gray-200);
}

.course-duration,
.course-level {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-600);
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    color: var(--gray-900);
    margin-bottom: 1.5rem;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.stat {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.stat-content h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.stat-content p {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin: 0;
}

/* Testimonials Section */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

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

.testimonial-stars {
    margin-bottom: 1rem;
}

.testimonial-content p {
    font-style: italic;
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
    color: var(--gray-700);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--gray-200);
}

.author-info h4 {
    color: var(--gray-900);
    margin-bottom: 0.25rem;
}

.author-info p {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin: 0;
}

/* Newsletter Section */
.newsletter-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.newsletter-text h2 {
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.newsletter-form {
    margin-top: 2rem;
}

.form-group {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-group input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-error {
    color: var(--danger-color);
    font-size: 0.875rem;
    text-align: left;
    margin-top: 0.5rem;
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

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

.contact-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-details h3 {
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.contact-details p {
    margin: 0;
}

.social-links {
    text-align: center;
}

.social-links h3 {
    color: var(--gray-900);
    margin-bottom: 1rem;
}

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

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: var(--gray-100);
    border-radius: 50%;
    transition: var(--transition);
}

.social-icons a:hover {
    background-color: var(--primary-color);
    transform: translateY(-2px);
}

.social-icons a:hover svg {
    filter: brightness(0) invert(1);
}

/* Footer */
.footer {
    background-color: var(--gray-900);
    color: white;
    padding: 3rem 0 1rem;
}

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

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

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

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

.footer-section ul li a {
    color: var(--gray-300);
    transition: var(--transition);
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-section p {
    color: var(--gray-300);
    margin-bottom: 1rem;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--gray-800);
    text-align: center;
}

.footer-bottom p {
    color: var(--gray-400);
    margin: 0;
}

/* Cookie Banner and Modal */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    border-top: 1px solid var(--gray-200);
    box-shadow: 0 -4px 6px -1px rgba(0, 0, 0, 0.1);
    z-index: 200;
    padding: 1.5rem;
}

.cookie-content {
    max-width: var(--container-max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.cookie-text h3 {
    margin-bottom: 0.5rem;
    color: var(--gray-900);
}

.cookie-text p {
    margin: 0;
    color: var(--gray-600);
}

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

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 300;
    padding: 1rem;
}

.modal-content {
    background: white;
    border-radius: var(--border-radius);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid var(--gray-200);
}

.modal-header h2 {
    margin: 0;
    color: var(--gray-900);
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-500);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.close-btn:hover {
    background-color: var(--gray-100);
    color: var(--gray-700);
}

.modal-body {
    padding: 1.5rem;
}

.cookie-category {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--gray-200);
}

.cookie-category:last-child {
    border-bottom: none;
}

.cookie-category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.cookie-category h3 {
    margin: 0;
    color: var(--gray-900);
}

.cookie-category p {
    margin: 0;
    color: var(--gray-600);
    font-size: 0.875rem;
}

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--gray-300);
    transition: var(--transition);
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: var(--transition);
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--primary-color);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

input:disabled + .slider {
    background-color: var(--gray-400);
    cursor: not-allowed;
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--gray-200);
    text-align: right;
}

.hidden {
    display: none !important;
}

/* Thank you page styles */
.thank-you-section {
    min-height: 80vh;
    display: flex;
    align-items: center;
    padding: 2rem 0;
    margin-top: 80px;
}

.thank-you-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.thank-you-icon {
    margin-bottom: 2rem;
}

.thank-you-content h1 {
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.thank-you-message {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.thank-you-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.thank-you-benefits h2 {
    color: var(--gray-900);
    margin-bottom: 2rem;
}

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

.benefit-item {
    text-align: center;
    padding: 1.5rem;
}

.benefit-icon {
    margin-bottom: 1rem;
}

.benefit-item h3 {
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.benefit-item p {
    color: var(--gray-600);
    font-size: 0.875rem;
    margin: 0;
}

/* Legal pages styles */
.legal-page {
    padding: 2rem 0;
    margin-top: 80px;
    min-height: calc(100vh - 80px);
}

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

.legal-content h1 {
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.legal-intro {
    color: var(--gray-500);
    font-style: italic;
    margin-bottom: 2rem;
}

.legal-section {
    margin-bottom: 2rem;
}

.legal-section h2 {
    color: var(--gray-900);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

.legal-section h3 {
    color: var(--gray-800);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.legal-section ul {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.legal-section li {
    margin-bottom: 0.5rem;
}

.cookie-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

.cookie-table th,
.cookie-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.cookie-table th {
    background-color: var(--gray-50);
    font-weight: 600;
    color: var(--gray-900);
}

.cookie-table td {
    color: var(--gray-600);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-image {
        order: -1;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
    
    .cookie-buttons {
        justify-content: center;
    }
    
    .form-group {
        flex-direction: column;
    }
    
    .thank-you-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .stats {
        grid-template-columns: 1fr;
    }
    
    .stat {
        justify-content: center;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }
    
    .section {
        padding: 3rem 0;
    }
    
    .service-card,
    .course-card,
    .testimonial-card {
        margin: 0 0.5rem;
    }
    
    .modal {
        padding: 0.5rem;
    }
    
    .cookie-banner {
        padding: 1rem;
    }
}

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

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Focus styles for accessibility */
.btn:focus,
input:focus,
.nav-menu a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .header,
    .cookie-banner,
    .modal,
    .hero {
        display: none !important;
    }
    
    .legal-page {
        margin-top: 0;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    h1, h2, h3 {
        page-break-after: avoid;
    }
}