/* 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;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
}

a {
    color: #2563eb;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #1d4ed8;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    line-height: 1.5;
}

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

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

.btn-secondary {
    background-color: #6b7280;
    color: white;
}

.btn-secondary:hover {
    background-color: #4b5563;
    color: white;
    transform: translateY(-1px);
}

.btn-full {
    width: 100%;
}

.btn-icon {
    width: 20px;
    height: 20px;
    margin-right: 8px;
    vertical-align: middle;
}

/* Header */
.header {
    background-color: #ffffff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav {
    padding: 1rem 0;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    font-weight: 700;
    font-size: 1.25rem;
    color: #2563eb;
}

.logo-img {
    width: 32px;
    height: 32px;
    margin-right: 12px;
}

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

.nav-link {
    color: #4b5563;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle-line {
    width: 25px;
    height: 3px;
    background-color: #4b5563;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

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

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.1;
    z-index: 1;
}

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

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

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

/* Page Header */
.page-header {
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
    padding: 60px 0;
    text-align: center;
}

.page-title {
    font-size: 2.5rem;
    color: #1f2937;
    margin-bottom: 1rem;
}

.page-subtitle {
    font-size: 1.125rem;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto;
}

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

.section-title {
    font-size: 2.5rem;
    color: #1f2937;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto;
}

.section-actions {
    text-align: center;
    margin-top: 3rem;
}

/* Trust Section */
.trust-section {
    padding: 60px 0;
    background-color: #f9fafb;
}

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

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

.trust-icon {
    width: 48px;
    height: 48px;
    color: #2563eb;
    margin: 0 auto 1rem;
}

.trust-item h3 {
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.trust-item p {
    color: #6b7280;
    margin-bottom: 0;
}

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

/* Courses Grid */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

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

.course-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

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

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

.course-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1f2937;
}

.course-card-category {
    color: #2563eb;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.course-card-desc {
    color: #6b7280;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.course-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: #6b7280;
}

.course-card-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: #2563eb;
    margin-bottom: 1rem;
}

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

.course-tag {
    display: inline-block;
    background: #dbeafe;
    color: #1e40af;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
}

/* Features */
.features {
    padding: 80px 0;
    background-color: #f9fafb;
}

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

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

.feature-icon {
    width: 48px;
    height: 48px;
    color: #2563eb;
    margin: 0 auto 1rem;
}

.feature-item h3 {
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.feature-item p {
    color: #6b7280;
    margin-bottom: 0;
}

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

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

.filter-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: #374151;
}

.search-input,
.filter-select {
    padding: 12px;
    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;
}

.search-input {
    min-width: 300px;
}

.results-info {
    margin-bottom: 1rem;
    color: #6b7280;
    font-weight: 500;
}

/* Course Details */
.course-hero {
    padding: 60px 0;
    background-color: #f9fafb;
}

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

.course-breadcrumb {
    color: #6b7280;
    margin-bottom: 1rem;
}

.course-breadcrumb a {
    color: #6b7280;
}

.course-hero-title {
    font-size: 2.5rem;
    color: #1f2937;
    margin-bottom: 1rem;
}

.course-hero-desc {
    font-size: 1.125rem;
    color: #6b7280;
    margin-bottom: 2rem;
}

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

.course-meta-item {
    color: #6b7280;
}

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

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

.course-details-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
}

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

.course-section h2 {
    color: #1f2937;
    margin-bottom: 1.5rem;
}

.learning-objectives,
.course-requirements {
    list-style: none;
}

.learning-objectives li,
.course-requirements li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #e5e7eb;
    position: relative;
    padding-left: 2rem;
}

.learning-objectives li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
}

.course-requirements li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #6b7280;
    font-weight: bold;
}

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

.curriculum-item {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #e5e7eb;
}

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

.curriculum-title {
    font-weight: 600;
    color: #1f2937;
}

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

.instructor-info h3 {
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.instructor-info p {
    color: #6b7280;
}

.faq-list {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.faq-item {
    border-bottom: 1px solid #e5e7eb;
}

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

.faq-question {
    width: 100%;
    padding: 1.5rem;
    background: none;
    border: none;
    text-align: left;
    font-size: 1rem;
    font-weight: 600;
    color: #1f2937;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background-color: #f9fafb;
}

.faq-icon {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 1.5rem 1.5rem;
    color: #6b7280;
    line-height: 1.6;
    display: none;
}

.faq-question[aria-expanded="true"] + .faq-answer {
    display: block;
}

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

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

.sidebar-card h3 {
    margin-bottom: 1.5rem;
    color: #1f2937;
}

.course-details-list {
    margin-bottom: 2rem;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid #e5e7eb;
}

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

.detail-label {
    color: #6b7280;
}

.detail-value {
    font-weight: 600;
    color: #1f2937;
}

.sticky {
    position: sticky;
    top: 100px;
}

/* Checkout */
.checkout-header {
    background-color: #f9fafb;
    padding: 2rem 0;
}

.checkout-progress {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
}

.progress-step {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #6b7280;
}

.progress-step.active {
    color: #2563eb;
}

.progress-step.completed {
    color: #10b981;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: #e5e7eb;
    color: #6b7280;
    font-weight: 600;
}

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

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

.checkout-content {
    padding: 3rem 0;
}

.checkout-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
}

.checkout-form-section h1 {
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.checkout-form-section > p {
    color: #6b7280;
    margin-bottom: 2rem;
}

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

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

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

.form-label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: #374151;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-error {
    color: #dc2626;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: none;
}

.form-error.show {
    display: block;
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    cursor: pointer;
    line-height: 1.5;
}

.checkbox-custom {
    width: 20px;
    height: 20px;
    border: 2px solid #e5e7eb;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    flex-shrink: 0;
    margin-top: 2px;
}

input[type="checkbox"] {
    display: none;
}

input[type="checkbox"]:checked + .checkbox-custom {
    background-color: #2563eb;
    border-color: #2563eb;
}

input[type="checkbox"]:checked + .checkbox-custom:after {
    content: "✓";
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.checkbox-text {
    color: #374151;
}

.checkbox-text a {
    color: #2563eb;
}

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

.checkout-sidebar {
    position: sticky;
    top: 100px;
}

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

.order-summary h3 {
    margin-bottom: 1.5rem;
    color: #1f2937;
}

.course-summary {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #e5e7eb;
}

.course-summary-image {
    flex-shrink: 0;
}

.summary-image {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: 8px;
}

.course-summary-details h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: #1f2937;
}

.course-summary-details p {
    font-size: 0.875rem;
    color: #6b7280;
    margin-bottom: 0.25rem;
}

.order-total {
    space-y: 0.5rem;
}

.total-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
}

.total-final {
    border-top: 2px solid #e5e7eb;
    padding-top: 1rem;
    margin-top: 1rem;
    font-size: 1.125rem;
}

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

.customer-details {
    font-size: 0.875rem;
    color: #6b7280;
    line-height: 1.6;
}

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

.security-badges h4 {
    margin-bottom: 1rem;
    color: #1f2937;
}

.security-icons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1rem;
}

.security-icon {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #10b981;
}

.security-icon svg {
    width: 20px;
    height: 20px;
}

.security-note {
    font-size: 0.875rem;
    color: #6b7280;
    background-color: #fef3c7;
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid #f59e0b;
    margin-bottom: 0;
}

.payment-methods {
    margin-bottom: 2rem;
}

.payment-methods h3 {
    margin-bottom: 1rem;
    color: #1f2937;
}

.payment-icons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.payment-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    transition: border-color 0.3s ease;
}

.payment-icon:hover {
    border-color: #2563eb;
}

.payment-icon svg {
    width: 48px;
    height: 32px;
}

.payment-icon span {
    font-size: 0.75rem;
    font-weight: 500;
    color: #6b7280;
}

/* Success Page */
.success-section {
    padding: 60px 0;
}

.success-content {
    text-align: center;
    margin-bottom: 3rem;
}

.success-icon {
    width: 80px;
    height: 80px;
    color: #10b981;
    margin: 0 auto 2rem;
}

.success-title {
    color: #1f2937;
    margin-bottom: 1rem;
}

.success-message {
    font-size: 1.125rem;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto 2rem;
}

.order-details {
    margin-bottom: 3rem;
}

.order-summary-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    padding: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.order-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #e5e7eb;
}

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

.next-steps h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #1f2937;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

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

.step-icon {
    width: 48px;
    height: 48px;
    background-color: #2563eb;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-weight: 700;
    font-size: 1.25rem;
}

.step-content h3 {
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.step-content p {
    color: #6b7280;
    margin-bottom: 0;
}

.success-actions {
    text-align: center;
    margin-bottom: 3rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.support-info {
    text-align: center;
    background: #f9fafb;
    padding: 2rem;
    border-radius: 12px;
    max-width: 600px;
    margin: 0 auto;
}

.support-info h3 {
    color: #1f2937;
    margin-bottom: 1rem;
}

.support-info p {
    color: #6b7280;
    margin-bottom: 1rem;
}

.support-contacts {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.support-contacts p {
    margin-bottom: 0;
    color: #2563eb;
    font-weight: 500;
}

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

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text h2 {
    color: #1f2937;
    margin-bottom: 1.5rem;
}

.about-text p {
    color: #6b7280;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.about-img {
    width: 100%;
    height: auto;
    border-radius: 12px;
}

.values-section {
    padding: 80px 0;
    background-color: #f9fafb;
}

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

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

.value-icon {
    width: 48px;
    height: 48px;
    color: #2563eb;
    margin: 0 auto 1rem;
}

.value-item h3 {
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.value-item p {
    color: #6b7280;
    margin-bottom: 0;
}

.team-section {
    padding: 80px 0;
}

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

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

.approach-number {
    position: absolute;
    top: -20px;
    left: 2rem;
    width: 40px;
    height: 40px;
    background-color: #2563eb;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.125rem;
}

.approach-item h3 {
    color: #1f2937;
    margin-bottom: 1rem;
    margin-top: 1rem;
}

.approach-item p {
    color: #6b7280;
    margin-bottom: 0;
}

.stats-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.125rem;
    opacity: 0.9;
}

.cta-section {
    padding: 80px 0;
    background-color: #f9fafb;
}

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

.cta-content h2 {
    color: #1f2937;
    margin-bottom: 1rem;
}

.cta-content p {
    color: #6b7280;
    margin-bottom: 2rem;
}

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

/* Contact Page */
.contact-section {
    padding: 60px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info h2 {
    color: #1f2937;
    margin-bottom: 1rem;
}

.contact-info > p {
    color: #6b7280;
    margin-bottom: 2rem;
}

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

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

.contact-icon {
    width: 48px;
    height: 48px;
    color: #2563eb;
    flex-shrink: 0;
}

.contact-details h3 {
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.contact-details p {
    color: #6b7280;
    margin-bottom: 0.25rem;
}

.contact-details small {
    color: #9ca3af;
    font-size: 0.875rem;
}

.contact-details a {
    color: #2563eb;
    font-weight: 500;
}

.contact-form-section h2 {
    color: #1f2937;
    margin-bottom: 1rem;
}

.contact-form-section > p {
    color: #6b7280;
    margin-bottom: 2rem;
}

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

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

.form-success .success-icon {
    width: 48px;
    height: 48px;
    color: #10b981;
    margin: 0 auto 1rem;
}

.form-success h3 {
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.form-success p {
    color: #6b7280;
    margin-bottom: 0;
}

.faq-preview {
    padding: 60px 0;
    background-color: #f9fafb;
}

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

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

.faq-item h3 {
    color: #1f2937;
    margin-bottom: 1rem;
}

.faq-item p {
    color: #6b7280;
    margin-bottom: 0;
}

.faq-actions {
    text-align: center;
    margin-top: 2rem;
}

/* FAQ Page */
.faq-section {
    padding: 60px 0;
}

.faq-categories {
    margin-bottom: 3rem;
}

.faq-categories h2 {
    color: #1f2937;
    margin-bottom: 1rem;
}

.category-filters {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.category-btn {
    padding: 8px 16px;
    border: 2px solid #e5e7eb;
    background: white;
    color: #6b7280;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

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

.contact-cta {
    padding: 60px 0;
    background-color: #f9fafb;
}

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

.contact-cta .cta-content h2 {
    color: #1f2937;
    margin-bottom: 1rem;
}

.contact-cta .cta-content p {
    color: #6b7280;
    margin-bottom: 2rem;
}

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

/* Legal Pages */
.legal-content {
    padding: 60px 0;
}

.legal-document {
    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-section {
    margin-bottom: 3rem;
}

.legal-section h2 {
    color: #1f2937;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.legal-section h3 {
    color: #374151;
    margin-bottom: 1rem;
    margin-top: 2rem;
    font-size: 1.25rem;
}

.legal-section p {
    color: #6b7280;
    margin-bottom: 1rem;
    line-height: 1.7;
}

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

.legal-section li {
    color: #6b7280;
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.contact-info {
    background-color: #f9fafb;
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 1rem;
}

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

.contact-info p:last-child {
    margin-bottom: 0;
}

/* Error States */
.error-message {
    padding: 60px 0;
    text-align: center;
}

.error-content h1 {
    color: #dc2626;
    margin-bottom: 1rem;
}

.error-content p {
    color: #6b7280;
    margin-bottom: 2rem;
}

/* Footer */
.footer {
    background-color: #1f2937;
    color: white;
    padding: 60px 0 20px;
}

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

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

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

.footer-section p {
    color: #d1d5db;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.footer-contact p {
    margin-bottom: 0.5rem;
    color: #d1d5db;
}

.footer-contact a {
    color: #60a5fa;
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: #d1d5db;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #60a5fa;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #374151;
    color: #9ca3af;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        gap: 1rem;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .hero-actions .btn {
        width: 100%;
        max-width: 300px;
    }

    .page-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .catalog-filters {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .search-input {
        min-width: auto;
    }

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

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

    .course-sidebar {
        position: static;
    }

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

    .checkout-sidebar {
        position: static;
        order: -1;
    }

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

    .form-actions {
        flex-direction: column;
    }

    .checkout-progress {
        flex-direction: column;
        gap: 1rem;
    }

    .progress-step {
        justify-content: center;
    }

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

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

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

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .success-actions {
        flex-direction: column;
        align-items: center;
    }

    .success-actions .btn {
        width: 100%;
        max-width: 300px;
    }

    .support-contacts {
        flex-direction: column;
        gap: 1rem;
    }

    .order-info {
        grid-template-columns: 1fr;
    }

    .cta-actions {
        flex-direction: column;
        align-items: center;
    }

    .cta-actions .btn {
        width: 100%;
        max-width: 300px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .hero-actions .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }

    .page-title {
        font-size: 1.75rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .legal-document {
        padding: 2rem;
    }

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

    .stat-number {
        font-size: 2.5rem;
    }
}

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

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }

.hidden {
    display: none;
}

.visible {
    display: block;
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus States */
.btn:focus,
.form-input:focus,
.form-select:focus,
.form-textarea:focus,
.nav-link:focus,
.faq-question:focus {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .btn-primary {
        background-color: #000000;
        color: #ffffff;
        border: 2px solid #000000;
    }
    
    .btn-secondary {
        background-color: #ffffff;
        color: #000000;
        border: 2px solid #000000;
    }
}

/* 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,
    .nav-toggle,
    .btn,
    .form-actions {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
        color: #000000;
        background: #ffffff;
    }
    
    .container {
        max-width: none;
        padding: 0;
    }
    
    h1, h2, h3, h4, h5, h6 {
        color: #000000;
        page-break-after: avoid;
    }
    
    p, ul, ol {
        page-break-inside: avoid;
    }
    
    .legal-document,
    .course-details,
    .order-summary-card {
        box-shadow: none;
        border: 1px solid #000000;
    }
}