/* 
 * InterSyste - Styles principaux
 * Styles pour le site web de cours en ligne InterSyste
 */

/* ======= Variables CSS ======= */
:root {
    /* Couleurs principales */
    --color-primary: #91911c;
    --color-primary-dark: #777700;
    --color-primary-light: #a9a93a;
    --color-secondary: #3a3a3a;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-background: #ffffff;
    --color-background-alt: #f8f8f8;
    --color-border: #e0e0e0;
    --color-success: #4caf50;
    --color-error: #f44336;
    --color-warning: #ff9800;
    
    /* Espacement */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    
    /* Typographie */
    --font-family-main: 'Roboto', 'Helvetica Neue', sans-serif;
    --font-family-heading: 'Montserrat', 'Arial', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-xxl: 2rem;
    --font-size-xxxl: 3rem;
    
    /* Bordures */
    --border-radius-sm: 3px;
    --border-radius-md: 6px;
    --border-radius-lg: 12px;
    --border-radius-circle: 50%;
    
    /* Ombres */
    --box-shadow-light: 0 2px 5px rgba(0, 0, 0, 0.1);
    --box-shadow-medium: 0 4px 12px rgba(0, 0, 0, 0.15);
    --box-shadow-heavy: 0 8px 20px rgba(0, 0, 0, 0.2);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Dimensions */
    --container-max-width: 1200px;
    --header-height: 80px;
}

/* ======= Réinitialisation de base ======= */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-family-main);
    font-size: var(--font-size-md);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    overflow-x: hidden;
}

img, svg {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}

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

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

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

button {
    cursor: pointer;
    border: none;
    background: none;
}

/* ======= Utilitaires ======= */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xxl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    text-align: center;
    color: var(--color-secondary);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    font-weight: 400;
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

/* ======= En-tête (Header) ======= */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-background);
    z-index: 1000;
    box-shadow: var(--box-shadow-light);
    height: var(--header-height);
    display: flex;
    align-items: center;
}

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

.logo-container {
    display: flex;
    align-items: center;
}

.logo {
    height: 50px;
    width: auto;
}

.navigation ul {
    display: flex;
    gap: var(--spacing-md);
}

.navigation li a {
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--color-text);
    position: relative;
}

.navigation li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-normal);
}

.navigation li a:hover::after,
.navigation li a.active::after {
    width: 100%;
}

.navigation li a.active {
    color: var(--color-primary);
}

.nav-button {
    background-color: var(--color-primary);
    color: white !important;
    padding: var(--spacing-xs) var(--spacing-md) !important;
    border-radius: var(--border-radius-md);
    transition: background-color var(--transition-fast);
}

.nav-button:hover {
    background-color: var(--color-primary-dark);
}

.nav-button::after {
    display: none !important;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 22px;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-text);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* ======= Bannière (Hero) ======= */
.hero {
    position: relative;
    padding: calc(var(--header-height) + var(--spacing-xl)) 0 var(--spacing-xl);
    background-color: var(--color-background-alt);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/banner-bg.svg');
    background-size: cover;
    background-position: center;
    opacity: 0.2;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xl) 0;
}

.hero-content h1 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xxxl);
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-content p {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-light);
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

/* ======= Boutons ======= */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    text-align: center;
    transition: all var(--transition-fast);
    cursor: pointer;
}

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

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

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

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

/* ======= Section des cours ======= */
.courses-section {
    padding: var(--spacing-xl) 0;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.course-card {
    background-color: var(--color-background);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--box-shadow-light);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-medium);
}

.course-icon {
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.course-image {
    width: 80px;
    height: 80px;
}

.course-card h3 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
}

.course-card p {
    font-size: var(--font-size-md);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.course-link {
    font-weight: 500;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    margin-top: auto;
}

.course-link::after {
    content: '→';
    margin-left: var(--spacing-xs);
    transition: transform var(--transition-fast);
}

.course-link:hover::after {
    transform: translateX(5px);
}

/* ======= Section à propos ======= */
.about-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-background-alt);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about-text h2 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xxl);
    margin-bottom: var(--spacing-md);
    color: var(--color-secondary);
}

.about-text p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.stats-container {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-lg);
}

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

.stat-number {
    display: block;
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xxl);
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-background);
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-light);
}

.feature-icon {
    width: 50px;
    height: 50px;
    flex-shrink: 0;
}

.feature-content h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-secondary);
}

.feature-content p {
    font-size: var(--font-size-md);
    color: var(--color-text-light);
}

/* ======= Section pourquoi nous ======= */
.why-us-section {
    padding: var(--spacing-xl) 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.feature-card {
    text-align: center;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    background-color: var(--color-background);
    box-shadow: var(--box-shadow-light);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-medium);
}

.feature-image {
    width: 70px;
    height: 70px;
    margin: 0 auto var(--spacing-md);
}

.feature-card h3 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
}

.feature-card p {
    font-size: var(--font-size-md);
    color: var(--color-text-light);
}

/* ======= Section témoignages ======= */
.testimonials-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-background-alt);
}

.testimonials-slider {
    position: relative;
    margin-top: var(--spacing-lg);
    overflow: hidden;
}

.testimonial {
    padding: 0 var(--spacing-md);
}

.testimonial-content {
    background-color: var(--color-background);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--box-shadow-light);
    text-align: center;
}

.testimonial-image {
    width: 80px;
    height: 80px;
    border-radius: var(--border-radius-circle);
    margin: 0 auto var(--spacing-md);
    object-fit: cover;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.testimonial-author h4 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--color-secondary);
}

.testimonial-author p {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

/* ======= Section aperçu du blog ======= */
.blog-preview-section {
    padding: var(--spacing-xl) 0;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.blog-card {
    background-color: var(--color-background);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--box-shadow-light);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-medium);
}

.blog-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.blog-content {
    padding: var(--spacing-md);
}

.blog-content h3 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
}

.blog-content p {
    font-size: var(--font-size-md);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.blog-link {
    font-weight: 500;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
}

.blog-link::after {
    content: '→';
    margin-left: var(--spacing-xs);
    transition: transform var(--transition-fast);
}

.blog-link:hover::after {
    transform: translateX(5px);
}

.blog-cta {
    text-align: center;
    margin-top: var(--spacing-lg);
}

/* ======= Section d'inscription ======= */
.subscription-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-background-alt);
}

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

.subscription-content h2 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xxl);
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
}

.subscription-content > p {
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-light);
}

.subscription-form {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    text-align: left;
    background-color: var(--color-background);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow-light);
}

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

.form-group label {
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--color-secondary);
}

.form-group input {
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    transition: border-color var(--transition-fast);
}

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

.checkbox-group {
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-sm);
}

.checkbox-group input {
    margin: 0;
}

.subscription-form button {
    margin-top: var(--spacing-sm);
}

.subscription-form-simple {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.subscription-form-simple .form-group {
    display: flex;
    flex-direction: row;
}

.subscription-form-simple input {
    flex-grow: 1;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-top-left-radius: var(--border-radius-sm);
    border-bottom-left-radius: var(--border-radius-sm);
    border-right: none;
}

.subscription-form-simple button {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

/* ======= Pied de page (Footer) ======= */
.footer {
    background-color: var(--color-secondary);
    color: white;
    padding-top: var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-info {
    padding-right: var(--spacing-lg);
}

.footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: var(--spacing-md);
    filter: brightness(0) invert(1);
}

.footer-info p {
    margin-bottom: var(--spacing-md);
}

.footer-info address {
    font-style: normal;
}

.footer-info address p {
    margin-bottom: var(--spacing-xs);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.footer-column h3 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-column li a {
    color: white;
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}

.footer-column li a:hover {
    opacity: 1;
    color: white;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.social-link {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-circle);
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    transition: background-color var(--transition-fast);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-md) 0;
    text-align: center;
}

.footer-bottom p {
    opacity: 0.7;
    font-size: var(--font-size-sm);
}

/* ======= Page de blog ======= */
.blog-page {
    padding: calc(var(--header-height) + var(--spacing-md)) 0 var(--spacing-xl);
}

.blog-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg) 0;
}

.blog-header h1 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xxxl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
}

.blog-header p {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    max-width: 700px;
    margin: 0 auto;
}

.blog-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.blog-item {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-lg);
    background-color: var(--color-background);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--box-shadow-light);
}

.blog-item-image {
    overflow: hidden;
}

.blog-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.blog-item:hover .blog-item-image img {
    transform: scale(1.05);
}

.blog-item-content {
    padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-lg) 0;
    display: flex;
    flex-direction: column;
}

.blog-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
}

.blog-item-content h2 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.blog-item-content h2 a {
    color: var(--color-secondary);
    transition: color var(--transition-fast);
}

.blog-item-content h2 a:hover {
    color: var(--color-primary);
}

.blog-item-content p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-light);
}

.blog-read-more {
    margin-top: auto;
    font-weight: 600;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
}

.blog-read-more::after {
    content: '→';
    margin-left: var(--spacing-xs);
    transition: transform var(--transition-fast);
}

.blog-read-more:hover::after {
    transform: translateX(5px);
}

.blog-subscription {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-xl) 0;
    background-color: var(--color-background-alt);
    border-radius: var(--border-radius-lg);
}

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

/* ======= Page d'article ======= */
.article-page {
    padding: calc(var(--header-height) + var(--spacing-md)) 0 var(--spacing-xl);
}

.article-content {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
}

.article-header {
    margin-bottom: var(--spacing-lg);
}

.article-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
}

.article-header h1 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xxxl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
    line-height: 1.2;
}

.article-author {
    font-style: italic;
    color: var(--color-text-light);
}

.article-featured-image {
    margin-bottom: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.article-featured-image img {
    width: 100%;
    height: auto;
}

.article-body {
    margin-bottom: var(--spacing-lg);
}

.article-intro {
    font-size: var(--font-size-lg);
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
    color: var(--color-secondary);
}

.article-body h2 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin: var(--spacing-lg) 0 var(--spacing-md);
    color: var(--color-secondary);
}

.article-body p {
    margin-bottom: var(--spacing-md);
}

.article-body ul, .article-body ol {
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.article-body ul {
    list-style-type: disc;
}

.article-body ol {
    list-style-type: decimal;
}

.article-body li {
    margin-bottom: var(--spacing-xs);
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.tag {
    background-color: var(--color-background-alt);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.article-share {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.article-share p {
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.social-share {
    display: flex;
    gap: var(--spacing-sm);
}

.social-share-link {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-circle);
    background-color: var(--color-background-alt);
    color: var(--color-text);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.social-share-link:hover {
    background-color: var(--color-primary);
    color: white;
}

.related-articles {
    margin-top: var(--spacing-xl);
}

.related-articles h3 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    color: var(--color-secondary);
}

.related-articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.related-article {
    display: block;
    text-align: center;
    transition: transform var(--transition-normal);
}

.related-article:hover {
    transform: translateY(-5px);
}

.related-article img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-sm);
}

.related-article h4 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--color-secondary);
    transition: color var(--transition-fast);
}

.related-article:hover h4 {
    color: var(--color-primary);
}

/* ======= Page de remerciement ======= */
.thank-you-page {
    padding: calc(var(--header-height) + var(--spacing-xl)) 0 var(--spacing-xl);
    text-align: center;
}

.thank-you-content {
    max-width: 600px;
    margin: 0 auto;
}

.checkmark {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--spacing-lg);
}

.checkmark-circle {
    stroke-dasharray: 166;
    stroke-dashoffset: 166;
    stroke-width: 2;
    stroke-miterlimit: 10;
    stroke: var(--color-success);
    fill: none;
    animation: stroke 0.6s cubic-bezier(0.65, 0, 0.45, 1) forwards;
}

.checkmark-check {
    transform-origin: 50% 50%;
    stroke-dasharray: 48;
    stroke-dashoffset: 48;
    stroke-width: 3;
    stroke: var(--color-success);
    animation: stroke 0.3s cubic-bezier(0.65, 0, 0.45, 1) 0.8s forwards;
}

@keyframes stroke {
    100% {
        stroke-dashoffset: 0;
    }
}

.thank-you-content h1 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xxl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-secondary);
}

.thank-you-content p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-light);
}

.thank-you-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

/* ======= Pages légales ======= */
.legal-page {
    padding: calc(var(--header-height) + var(--spacing-md)) 0 var(--spacing-xl);
}

.legal-content {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    background-color: var(--color-background);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow-light);
}

.legal-content h1 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xxl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
}

.last-updated {
    font-style: italic;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.legal-section {
    margin-bottom: var(--spacing-lg);
}

.legal-section h2 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-secondary);
}

.legal-section h3 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: var(--spacing-md) 0 var(--spacing-sm);
    color: var(--color-secondary);
}

.legal-section p {
    margin-bottom: var(--spacing-md);
}

.legal-section ul, .legal-section ol {
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.legal-section ul {
    list-style-type: disc;
}

.legal-section ol {
    list-style-type: decimal;
}

.legal-section li {
    margin-bottom: var(--spacing-xs);
}

.legal-section address {
    font-style: normal;
    margin-top: var(--spacing-md);
}

/* ======= Responsive Design ======= */
@media (max-width: 1024px) {
    :root {
        --font-size-xxxl: 2.5rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-info {
        padding-right: 0;
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-xxxl: 2rem;
        --font-size-xxl: 1.75rem;
        --font-size-xl: 1.3rem;
    }
    
    .navigation {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .blog-item {
        grid-template-columns: 1fr;
    }
    
    .blog-item-content {
        padding: var(--spacing-md);
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .related-articles-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .related-article img {
        height: 200px;
    }
}

@media (max-width: 576px) {
    :root {
        --spacing-xl: 3rem;
        --spacing-lg: 2rem;
    }
    
    .header {
        height: 60px;
    }
    
    .logo {
        height: 40px;
    }
    
    .hero {
        padding-top: calc(60px + var(--spacing-lg));
    }
    
    .hero-content h1 {
        font-size: var(--font-size-xxl);
    }
    
    .hero-content p {
        font-size: var(--font-size-lg);
    }
    
    .section-title {
        font-size: var(--font-size-xl);
    }
    
    .section-subtitle {
        font-size: var(--font-size-md);
    }
    
    .thank-you-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .stats-container {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    .blog-grid {
        grid-template-columns: 1fr;
    }
    .subscription-form {
        padding: 0;
        box-shadow: none;
        background-color: transparent;
    }
    .feature-item {
        flex-direction: column;
    }
    .subscription-form-simple .form-group {
        flex-direction: column;
    }
}

/* ======= Animations ======= */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.hero-content {
    animation: fadeIn 1s ease-out;
}

.courses-grid, .feature-card, .blog-card {
    animation: slideUp 0.6s ease-out forwards;
}