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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

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

img {
    max-width: 100%;
    height: auto;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    transition: all 0.3s ease;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

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

/* Header */
.header {
    background: #ffffff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.2rem;
    color: #2563eb;
}

.logo-text {
    white-space: nowrap;
}

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

.nav-link {
    font-weight: 500;
    color: #64748b;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: #2563eb;
    border-bottom-color: #2563eb;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: #333;
    transition: all 0.3s ease;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    line-height: 1.5;
}

.btn-primary {
    background: #2563eb;
    color: white;
    border-color: #2563eb;
}

.btn-primary:hover {
    background: #1d4ed8;
    border-color: #1d4ed8;
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: #2563eb;
    border-color: #2563eb;
}

.btn-secondary:hover {
    background: #2563eb;
    color: white;
}

.btn-full {
    width: 100%;
}

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

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 60px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.2rem;
    color: #64748b;
}

/* Sections */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: #1e293b;
}

.features {
    padding: 80px 0;
    background: #f8fafc;
}

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

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1e293b;
}

.feature-card p {
    color: #64748b;
    line-height: 1.6;
}

/* Featured Courses */
.featured-courses {
    padding: 80px 0;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.course-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

.course-card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: #f1f5f9;
}

.course-card-content {
    padding: 1.5rem;
}

.course-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.5rem;
}

.course-category {
    background: #dbeafe;
    color: #2563eb;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.course-difficulty {
    background: #f3f4f6;
    color: #6b7280;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.course-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1e293b;
    line-height: 1.3;
}

.course-description {
    color: #64748b;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: #64748b;
}

.course-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2563eb;
}

/* Course Catalog */
.courses-catalog {
    padding: 40px 0 80px;
}

.catalog-filters {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    margin-bottom: 3rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-group label {
    font-weight: 600;
    color: #374151;
}

.search-input,
.filter-select {
    padding: 0.75rem;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.search-input:focus,
.filter-select:focus {
    outline: none;
    border-color: #2563eb;
}

.no-results {
    text-align: center;
    padding: 3rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.no-results h3 {
    font-size: 1.5rem;
    color: #374151;
    margin-bottom: 1rem;
}

/* Course Detail Page */
.course-detail {
    padding: 40px 0 80px;
}

.course-hero {
    background: #f8fafc;
    padding: 40px 0;
}

.course-hero-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: start;
}

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

.course-hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.course-short-desc {
    font-size: 1.2rem;
    color: #64748b;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.course-stats {
    display: flex;
    gap: 2rem;
    font-weight: 500;
    color: #6b7280;
}

.course-hero-sidebar .course-card {
    position: sticky;
    top: 100px;
}

.course-details {
    padding: 60px 0;
}

.course-details-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
}

.course-section {
    margin-bottom: 3rem;
}

.course-section h2 {
    font-size: 1.75rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1.5rem;
}

.learn-list {
    list-style: none;
    padding: 0;
}

.learn-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: #374151;
}

.learn-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
}

.curriculum {
    background: #f8fafc;
    border-radius: 12px;
    padding: 1.5rem;
}

.curriculum-item {
    padding: 1rem 0;
    border-bottom: 1px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.curriculum-item:last-child {
    border-bottom: none;
}

.curriculum-title {
    font-weight: 500;
    color: #374151;
}

.curriculum-duration {
    color: #6b7280;
    font-size: 0.875rem;
}

.sidebar-section {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    margin-bottom: 2rem;
}

.sidebar-section h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
}

.requirements-list {
    list-style: none;
    padding: 0;
}

.requirements-list li {
    padding: 0.5rem 0;
    color: #374151;
    border-bottom: 1px solid #f1f5f9;
}

.requirements-list li:last-child {
    border-bottom: none;
}

.instructor-info h4 {
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.instructor-info p {
    color: #64748b;
    line-height: 1.6;
}

.course-not-found {
    padding: 80px 0;
    text-align: center;
}

.not-found-content h1 {
    font-size: 2rem;
    color: #374151;
    margin-bottom: 1rem;
}

.not-found-content p {
    color: #6b7280;
    margin-bottom: 2rem;
}

/* FAQ */
.faq-content {
    padding: 40px 0 80px;
}

.faq-categories {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.faq-category-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid #e5e7eb;
    border-radius: 25px;
    background: white;
    color: #6b7280;
    font-weight: 500;
    transition: all 0.3s ease;
}

.faq-category-btn.active,
.faq-category-btn:hover {
    border-color: #2563eb;
    color: #2563eb;
    background: #dbeafe;
}

.faq-section {
    display: none;
}

.faq-section.active {
    display: block;
}

.faq-section h2 {
    font-size: 2rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 2rem;
    text-align: center;
}

.faq-item {
    background: white;
    border-radius: 12px;
    margin-bottom: 1rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 1.5rem;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: #1e293b;
    background: white;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background: #f8fafc;
}

.faq-icon {
    font-size: 1.25rem;
    color: #2563eb;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
    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: 500px;
}

.faq-answer p {
    color: #64748b;
    line-height: 1.6;
}

.faq-contact {
    text-align: center;
    padding: 3rem;
    background: #f8fafc;
    border-radius: 12px;
    margin-top: 3rem;
}

.faq-contact h2 {
    font-size: 1.75rem;
    color: #1e293b;
    margin-bottom: 1rem;
}

.faq-contact p {
    color: #64748b;
    margin-bottom: 2rem;
}

/* Checkout */
.checkout {
    padding: 40px 0 80px;
    background: #f8fafc;
}

.checkout-header {
    text-align: center;
    margin-bottom: 3rem;
}

.checkout-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 2rem;
}

.checkout-steps {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.step {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    background: white;
    color: #6b7280;
    border: 2px solid #e5e7eb;
}

.step.active {
    background: #2563eb;
    color: white;
    border-color: #2563eb;
}

.step.completed {
    background: #10b981;
    color: white;
    border-color: #10b981;
}

.step-number {
    font-weight: 600;
}

.checkout-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

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

.checkout-section h2 {
    font-size: 1.75rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1.5rem;
}

.billing-form,
.payment-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: #374151;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2563eb;
}

.form-group.error input,
.form-group.error select,
.form-group.error textarea {
    border-color: #ef4444;
}

.error-message {
    color: #ef4444;
    font-size: 0.875rem;
    min-height: 1.2rem;
}

.checkbox-group {
    margin-top: 1rem;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
    margin: 0;
    padding: 0;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid #e5e7eb;
    border-radius: 4px;
    position: relative;
    flex-shrink: 0;
    margin-top: 2px;
}

.checkbox-label input:checked + .checkmark {
    background: #2563eb;
    border-color: #2563eb;
}

.checkbox-label input:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

.checkout-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.order-summary,
.billing-summary {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.order-summary h3,
.billing-summary h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
}

.course-summary {
    border-bottom: 1px solid #e5e7eb;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
}

.summary-total {
    border-top: 2px solid #e5e7eb;
    padding-top: 1rem;
}

.total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 700;
    font-size: 1.25rem;
    color: #1e293b;
}

.trust-indicators {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #6b7280;
    font-size: 0.875rem;
}

.trust-icon {
    font-size: 1.25rem;
}

.payment-methods {
    margin-bottom: 1.5rem;
}

.accepted-cards {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.card-icons {
    display: flex;
    gap: 0.5rem;
}

.security-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #10b981;
    font-weight: 500;
    font-size: 0.875rem;
    margin-left: auto;
}

.address-summary {
    color: #64748b;
    line-height: 1.5;
}

/* Success Page */
.success-page {
    padding: 80px 0;
    background: #f8fafc;
}

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

.success-icon {
    margin-bottom: 2rem;
}

.success-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1rem;
}

.success-message {
    font-size: 1.2rem;
    color: #64748b;
    margin-bottom: 3rem;
}

.order-details {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    margin-bottom: 3rem;
    text-align: left;
}

.order-details h2,
.order-details h3 {
    color: #1e293b;
    margin-bottom: 1rem;
}

.order-info {
    margin-bottom: 2rem;
}

.order-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid #f1f5f9;
}

.order-row:last-child {
    border-bottom: none;
}

.enrolled-course {
    background: #f8fafc;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.course-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.course-title {
    font-weight: 600;
    color: #1e293b;
}

.course-price {
    font-weight: 700;
    color: #2563eb;
}

.billing-details {
    margin-bottom: 2rem;
}

.billing-info {
    background: #f8fafc;
    padding: 1rem;
    border-radius: 8px;
    color: #64748b;
}

.next-steps {
    margin-bottom: 3rem;
}

.next-steps h2 {
    font-size: 1.75rem;
    color: #1e293b;
    margin-bottom: 2rem;
}

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

.step-item {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.step-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.step-item h3 {
    font-size: 1.25rem;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.step-item p {
    color: #64748b;
    line-height: 1.5;
}

.success-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.demo-notice {
    background: #fef3c7;
    border: 1px solid #f59e0b;
    padding: 1rem;
    border-radius: 8px;
    color: #92400e;
}

/* About Page */
.about-content {
    padding: 40px 0 80px;
}

.about-section {
    margin-bottom: 4rem;
}

.about-section h2 {
    font-size: 2rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1.5rem;
}

.about-section p {
    color: #64748b;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

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

.approach-text h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.5rem;
    margin-top: 1.5rem;
}

.approach-text h3:first-child {
    margin-top: 0;
}

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

.value-item {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.value-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.value-item p {
    color: #64748b;
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
    flex-wrap: wrap;
}

/* Contact Page */
.contact-content {
    padding: 40px 0 80px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.contact-info h2 {
    font-size: 2rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
}

.contact-info > p {
    color: #64748b;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-bottom: 3rem;
}

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

.contact-icon {
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.contact-details h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.25rem;
}

.contact-details p {
    color: #2563eb;
    margin-bottom: 0.25rem;
}

.contact-details small {
    color: #6b7280;
    font-size: 0.875rem;
}

.business-hours {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 12px;
}

.business-hours h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
}

.hours-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.hours-item {
    display: flex;
    justify-content: space-between;
    color: #64748b;
}

.contact-form-section h2 {
    font-size: 2rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1.5rem;
}

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

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

.success-icon {
    width: 60px;
    height: 60px;
    background: #10b981;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1rem;
}

.form-success h3 {
    font-size: 1.5rem;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.form-success p {
    color: #64748b;
}

.support-section {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
}

.support-section h2 {
    font-size: 1.75rem;
    color: #1e293b;
    margin-bottom: 1rem;
}

.support-section p {
    color: #64748b;
    margin-bottom: 1.5rem;
}

/* Legal Pages */
.legal-page {
    padding: 40px 0 80px;
}

.legal-page h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1rem;
    text-align: center;
}

.last-updated {
    text-align: center;
    color: #6b7280;
    margin-bottom: 3rem;
    font-style: italic;
}

.legal-content {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.legal-content section {
    margin-bottom: 2.5rem;
}

.legal-content h2 {
    font-size: 1.75rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
    padding-top: 1rem;
    border-top: 2px solid #f1f5f9;
}

.legal-content section:first-child h2 {
    border-top: none;
    padding-top: 0;
}

.legal-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #374151;
    margin: 1.5rem 0 0.75rem 0;
}

.legal-content p {
    color: #64748b;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.legal-content ul {
    margin-bottom: 1rem;
    padding-left: 2rem;
}

.legal-content li {
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.contact-info {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 1rem;
}

.contact-info p {
    margin-bottom: 0.5rem;
}

.contact-info a {
    color: #2563eb;
}

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

/* Footer */
.footer {
    background: #1e293b;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

.footer-section p {
    color: #94a3b8;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

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

.footer-section a {
    color: #94a3b8;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 2rem;
    text-align: center;
    color: #94a3b8;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.hidden {
    display: none !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    .header-content {
        padding: 0.75rem 0;
    }
    
    .nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .logo-text {
        font-size: 1rem;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features {
        padding: 60px 0;
    }
    
    .featured-courses {
        padding: 60px 0;
    }
    
    .courses-grid {
        grid-template-columns: 1fr;
    }
    
    .catalog-filters {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .course-hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .course-details-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .checkout-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .checkout-steps {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .faq-categories {
        flex-direction: column;
        align-items: center;
    }
    
    .success-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .legal-content {
        padding: 2rem 1rem;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .about-section h2 {
        font-size: 1.75rem;
    }
    
    .contact-info h2,
    .contact-form-section h2 {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .course-hero-title {
        font-size: 2rem;
    }
    
    .success-content h1 {
        font-size: 2rem;
    }
    
    .checkout-header h1 {
        font-size: 2rem;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
}

/* Focus Styles for Accessibility */
button:focus,
input:focus,
select:focus,
textarea:focus,
a:focus {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .btn,
    .checkout-sidebar,
    .mobile-menu-toggle {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .container {
        max-width: none;
        padding: 0;
    }
}