/* Variables CSS pour la charte graphique */
:root {
    --color-primary: #432E67;
    --color-secondary: #F8F3E9;
    --color-accent: #6D489F;
    --color-lavender: #D4C4FB;
    --color-dark: #2A1F44;
    
    --font-title: 'Courier Prime', monospace;
    --font-body: 'Roboto Mono', monospace;
    
    --border-radius: 12px;
    --transition: all 0.3s ease;
    --shadow: 0 4px 15px rgba(67, 46, 103, 0.1);
}

/* Reset et base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-secondary);
    color: var(--color-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Header */
.header {
    background-color: var(--color-primary);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: var(--shadow);
}

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

.logo {
    font-family: var(--font-title);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-secondary);
    text-decoration: none;
    transition: var(--transition);
}

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

/* Menu burger */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 5px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.menu-toggle:hover {
    background-color: var(--color-accent);
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--color-secondary);
    margin: 3px 0;
    border-radius: 2px;
    transition: var(--transition);
}

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

.nav-menu a {
    color: var(--color-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    display: block;
}

.nav-menu a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
    z-index: -1;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s ease;
    z-index: 1;
}

.nav-menu a:hover::before {
    transform: scaleX(1);
}

.nav-menu a:hover::after {
    left: 100%;
}

.nav-menu a:hover {
    transform: translateY(-2px);
}

.nav-menu a.active {
    background-color: var(--color-accent);
}

/* Main content */
.main-content {
    margin-top: 80px;
    min-height: calc(100vh - 160px);
    padding: 2rem 0;
}

/* Section styles */
.section {
    margin-bottom: 4rem;
    padding: 2rem;
    background-color: var(--color-secondary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-lavender);
}

.section-title {
    font-family: var(--font-title);
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: 2px;
}

/* Hero section */
.hero {
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-secondary);
    border-radius: var(--border-radius);
    margin-bottom: 3rem;
}

.hero h1 {
    font-family: var(--font-title);
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease 0.2s both;
}

/* Boutons */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    margin-top: 1rem;
    background-color: var(--color-primary);
    color: var(--color-secondary);
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: none;
    cursor: pointer;
    font-family: var(--font-body);
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s ease;
    z-index: -1;
}

.btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
    z-index: -2;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(67, 46, 103, 0.3);
}

.btn:hover::before {
    left: 100%;
}

.btn:hover::after {
    transform: scaleX(1);
}

.btn:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(67, 46, 103, 0.4);
}

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

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

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

.btn-secondary:hover::after {
    transform: scaleX(1);
}
/* Images */

.project-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
}


/* Grilles */
.grid {
    display: grid;
    gap: 2rem;
    margin-top: 2rem;
}

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

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Cards */
.card {
    background-color: var(--color-secondary);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--color-lavender);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(67, 46, 103, 0.15);
}

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

.card p {
    margin-bottom: 1rem;
    color: var(--color-dark);
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 1rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-primary), var(--color-accent));
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
    padding-left: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -0.5rem;
    top: 0.5rem;
    width: 1rem;
    height: 1rem;
    background-color: var(--color-primary);
    border-radius: 50%;
    border: 3px solid var(--color-secondary);
}

.timeline-date {
    font-family: var(--font-title);
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-content {
    background-color: var(--color-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--color-lavender);
    display: flex;
    align-items: center;
    gap: 2rem;
}

.timeline-text {
    flex: 1;
}

.timeline-image {
    flex-shrink: 0;
}

.timeline-img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--border-radius);
    border: 2px solid var(--color-lavender);
    transition: var(--transition);
}

.timeline-img:hover {
    transform: scale(1.05);
    border-color: var(--color-accent);
    box-shadow: 0 4px 15px rgba(67, 46, 103, 0.2);
}

/* Status badges */
.status {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-progress {
    background-color: #FFE4B5;
    color: #8B4513;
}

.status-completed {
    background-color: #D4F4DD;
    color: #2D5016;
}

.status-abandoned {
    background-color: #FFE4E1;
    color: #8B0000;
}

.status-paused {
    background-color: #E6E6FA;
    color: #4B0082;
}


/* Footer */
.footer {
    background-color: var(--color-dark);
    color: var(--color-lavender);
    text-align: center;
    padding: 0.5rem 0;
    position: relative;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 999;
}

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

.footer a {
    color: var(--color-lavender);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.footer a:hover {
    background-color: var(--color-primary);
    color: var(--color-secondary);
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Biography page styles */
.bio-content {
    display: grid;
    gap: 2rem;
    margin-top: 2rem;
}

.bio-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

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

.skill-category {
    background-color: var(--color-lavender);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-accent);
}

.skill-category h3 {
    font-family: var(--font-title);
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.skill-category ul {
    list-style: none;
    padding: 0;
}

.skill-category li {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(109, 72, 159, 0.2);
    color: var(--color-dark);
}

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

.contact-info {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
}

.contact-card {
    background-color: var(--color-lavender);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 2px solid var(--color-accent);
    max-width: 500px;
    width: 100%;
}

.contact-details {
    margin: 1.5rem 0;
}

.contact-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(109, 72, 159, 0.2);
}

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

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

/* Projects page styles */
.project-timeline {
    position: relative;
    padding-left: 2rem;
}

.project-timeline::before {
    content: '';
    position: absolute;
    left: 1rem;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--color-primary), var(--color-accent));
    border-radius: 2px;
}

.project-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 2rem;
}

.project-item::before {
    content: '';
    position: absolute;
    left: -0.75rem;
    top: 1rem;
    width: 1.5rem;
    height: 1.5rem;
    background-color: var(--color-primary);
    border-radius: 50%;
    border: 4px solid var(--color-secondary);
    box-shadow: 0 0 0 2px var(--color-primary);
}

.project-item.completed::before {
    background-color: #2D5016;
    box-shadow: 0 0 0 2px #2D5016;
}

.project-item.abandoned::before {
    background-color: #8B0000;
    box-shadow: 0 0 0 2px #8B0000;
}

.project-date {
    font-family: var(--font-title);
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.project-card {
    background-color: var(--color-secondary);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    border: 2px solid var(--color-lavender);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(67, 46, 103, 0.2);
}

.project-status-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
}

.project-status-overlay.status-progress {
    background: linear-gradient(to bottom, #FFE4B5, #DEB887);
}

.project-status-overlay.status-completed {
    background: linear-gradient(to bottom, #D4F4DD, #90EE90);
}

.project-status-overlay.status-abandoned {
    background: linear-gradient(to bottom, #FFE4E1, #FFA0A0);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.project-header h3 {
    font-family: var(--font-title);
    color: var(--color-primary);
    margin: 0;
    flex: 1;
}

.project-image-container {
    margin: 1rem 0;
}

.project-placeholder {
    background: linear-gradient(135deg, var(--color-lavender), var(--color-accent));
    color: var(--color-primary);
    padding: 3rem 1rem;
    text-align: center;
    border-radius: var(--border-radius);
    font-family: var(--font-title);
    font-weight: 600;
}

.project-description ul {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.project-description li {
    margin-bottom: 0.5rem;
}

.project-tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

.tech-tag {
    background-color: var(--color-accent);
    color: var(--color-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.stat-card {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-secondary);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(67, 46, 103, 0.3);
}

.stat-number {
    font-family: var(--font-title);
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Blog page styles */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.blog-card {
    background-color: var(--color-secondary);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--color-lavender);
    transition: var(--transition);
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(67, 46, 103, 0.2);
}

.blog-image {
    height: 400px;
    overflow: hidden;
}

.blog-placeholder {
    background: linear-gradient(135deg, var(--color-lavender), var(--color-accent));
    color: var(--color-primary);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-title);
    font-weight: 600;
    font-size: 1.1rem;
}

.blog-content {
    padding: 1.5rem;
}

.blog-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.blog-date {
    font-size: 0.9rem;
    color: var(--color-accent);
    font-weight: 500;
}

.blog-category {
    background-color: var(--color-primary);
    color: var(--color-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
}

.blog-content h3 {
    font-family: var(--font-title);
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.blog-content p {
    color: var(--color-dark);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.blog-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tag {
    background-color: var(--color-lavender);
    color: var(--color-primary);
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.category-card {
    background-color: var(--color-lavender);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-accent);
    transition: var(--transition);
    position: relative;
}

.category-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(67, 46, 103, 0.15);
}

.category-card h3 {
    font-family: var(--font-title);
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.article-count {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background-color: var(--color-accent);
    color: var(--color-secondary);
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.archives-list {
    margin-top: 2rem;
}

.archive-item {
    border-bottom: 1px solid var(--color-lavender);
    padding: 1rem 0;
}

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

.archive-item a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.archive-item a:hover {
    color: var(--color-accent);
    transform: translateX(5px);
}

.archive-item span {
    color: var(--color-accent);
    font-size: 0.9rem;
}

/* Project detail page styles */
.project-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.quick-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.project-overview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

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

.image-caption {
    font-style: italic;
    color: var(--color-accent);
    margin-top: 0.5rem;
    font-size: 0.9rem;
}

.tech-architecture {
    display: grid;
    gap: 2rem;
}

.architecture-diagram {
    text-align: center;
}

.tech-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

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

.feature-card {
    background-color: var(--color-lavender);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-accent);
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(67, 46, 103, 0.2);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-screenshot {
    width: 100%;
    max-width: 300px;
    border-radius: var(--border-radius);
    margin-top: 1rem;
    box-shadow: var(--shadow);
}

.code-examples {
    margin-top: 2rem;
}

.code-examples h3 {
    font-family: var(--font-title);
    color: var(--color-primary);
    margin: 2rem 0 1rem 0;
}

.code-examples pre {
    background-color: var(--color-dark);
    color: var(--color-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    overflow-x: auto;
    margin: 1rem 0;
    border: 1px solid var(--color-accent);
}

.code-examples code {
    font-family: var(--font-body);
    font-size: 0.9rem;
}

.research-content h3 {
    font-family: var(--font-title);
    color: var(--color-primary);
    margin: 2rem 0 1rem 0;
}

.challenges-list {
    margin-top: 1.5rem;
}

.challenge-item {
    background-color: var(--color-lavender);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    border-left: 4px solid var(--color-accent);
}

.challenge-item h4 {
    font-family: var(--font-title);
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.references-list {
    margin-top: 1rem;
}

.references-list li {
    margin-bottom: 0.5rem;
}

.references-list a {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
}

.references-list a:hover {
    text-decoration: underline;
}

.testing-content h3 {
    font-family: var(--font-title);
    color: var(--color-primary);
    margin: 2rem 0 1rem 0;
}

.test-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.metric-card {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
}

.metric-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(67, 46, 103, 0.3);
}

.metric-number {
    font-family: var(--font-title);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.metric-label {
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.installation-guide h3 {
    font-family: var(--font-title);
    color: var(--color-primary);
    margin: 2rem 0 1rem 0;
}

.installation-guide pre {
    background-color: var(--color-dark);
    color: var(--color-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    overflow-x: auto;
    margin: 1rem 0;
    border: 1px solid var(--color-accent);
}

.feedback-content h3 {
    font-family: var(--font-title);
    color: var(--color-primary);
    margin: 2rem 0 1rem 0;
}

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

.project-navigation {
    text-align: center;
    margin-top: 3rem;
}

.nav-buttons {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Course page styles */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.course-card {
    background-color: var(--color-secondary);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 2px solid var(--color-lavender);
    transition: var(--transition);
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(67, 46, 103, 0.2);
}

.course-header {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-secondary);
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.course-header h3 {
    font-family: var(--font-title);
    margin: 0;
    flex: 1;
    font-size: 1.3rem;
}

.course-level {
    background-color: rgba(255, 255, 255, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-left: 1rem;
}

.course-content {
    padding: 2rem;
}

.course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    color: var(--color-accent);
    font-weight: 500;
}

.course-topics {
    margin: 1.5rem 0;
}

.course-topics h4 {
    font-family: var(--font-title);
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.course-topics ul {
    margin-left: 1rem;
}

.course-topics li {
    margin-bottom: 0.5rem;
    color: var(--color-dark);
}

/* Responsive */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-primary);
        flex-direction: column;
        padding: 1rem;
        gap: 0.5rem;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .section {
        margin-bottom: 6rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
    }

    .timeline {
        padding-left: 1rem;
    }

    .timeline-item {
        padding-left: 1.5rem;
    }

    .timeline-content {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }

    .timeline-image {
        align-self: center;
    }

    .project-timeline {
        padding-left: 1rem;
    }

    .project-item {
        padding-left: 1.5rem;
    }

    .project-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

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

    .contact-buttons {
        flex-direction: column;
    }

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

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

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

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

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 2rem 1rem;
    }
    
    .section {
        padding: 1.5rem;
    }

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

    .project-card,
    .course-card,
    .blog-card {
        margin: 0 -0.5rem;
    }

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

    .project-tech-tags,
    .blog-tags {
        justify-content: center;
    }

    .course-header {
        flex-direction: column;
        gap: 1rem;
    }

    .course-level {
        margin-left: 0;
        align-self: flex-start;
    }

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

    .tech-categories {
        grid-template-columns: 1fr;
    }

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

    .quick-links {
        flex-direction: column;
        align-items: center;
    }

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

    .nav-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .test-metrics,
    .impact-stats {
        grid-template-columns: 1fr;
    }

    .project-badges {
        justify-content: center;
        gap: 0.5rem;
    }

    .feature-card {
        padding: 1.5rem;
    }

    .challenge-item {
        padding: 1rem;
    }
}

/* Blog article page styles */
.breadcrumb {
    margin: 2rem 0;
    font-size: 0.9rem;
    color: var(--color-accent);
}

.breadcrumb a {
    color: var(--color-accent);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb-separator {
    margin: 0 0.5rem;
    color: var(--color-primary);
}

.breadcrumb-current {
    color: var(--color-primary);
    font-weight: 500;
}

.blog-article {
    max-width: 800px;
    margin: 0 auto;
}

.article-header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--color-lavender);
}

.article-category {
    margin-bottom: 1rem;
}

.category-badge {
    background-color: var(--color-primary);
    color: var(--color-secondary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.article-title {
    font-family: var(--font-title);
    font-size: 2.5rem;
    color: var(--color-primary);
    margin: 1rem 0;
    line-height: 1.2;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 1.5rem 0;
    font-size: 0.9rem;
    color: var(--color-accent);
}

.meta-left {
    display: flex;
    gap: 1rem;
}

.reading-time {
    font-weight: 500;
}

.article-author {
    font-weight: 500;
}

.article-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.article-cover {
    margin: 3rem 0;
    text-align: center;
}

.cover-image {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.table-of-contents {
    background-color: var(--color-lavender);
    padding: 2rem;
    border-radius: var(--border-radius);
    margin: 3rem 0;
    border: 1px solid var(--color-accent);
}

.table-of-contents h2 {
    font-family: var(--font-title);
    color: var(--color-primary);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.table-of-contents ul {
    list-style: none;
    padding: 0;
}

.table-of-contents li {
    margin: 0.5rem 0;
}

.table-of-contents a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.table-of-contents a:hover {
    color: var(--color-accent);
    transform: translateX(5px);
}

.article-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-dark);
}

.article-content h2 {
    font-family: var(--font-title);
    color: var(--color-primary);
    font-size: 2rem;
    margin: 3rem 0 1.5rem 0;
    border-bottom: 2px solid var(--color-lavender);
    padding-bottom: 0.5rem;
}

.article-content h3 {
    font-family: var(--font-title);
    color: var(--color-primary);
    font-size: 1.5rem;
    margin: 2rem 0 1rem 0;
}

.article-content p {
    margin-bottom: 1.5rem;
}

.article-content ul,
.article-content ol {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.article-content li {
    margin-bottom: 0.5rem;
}

.info-box {
    background-color: #E8F4FD;
    border-left: 4px solid #2196F3;
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: var(--border-radius);
}

.info-box h3 {
    color: #1976D2;
    margin-bottom: 1rem;
}

.warning-box {
    background-color: #FFF3CD;
    border-left: 4px solid #FFC107;
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: var(--border-radius);
}

.warning-box h3 {
    color: #856404;
    margin-bottom: 1rem;
}

.article-figure {
    margin: 2rem 0;
    text-align: center;
}

.content-image {
    width: 100%;
    max-width: 600px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.article-figure figcaption {
    font-style: italic;
    color: var(--color-accent);
    margin-top: 0.5rem;
    font-size: 0.9rem;
}

.code-block {
    margin: 2rem 0;
}

.code-header {
    background-color: var(--color-primary);
    color: var(--color-secondary);
    padding: 0.75rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.file-name {
    font-family: var(--font-body);
    font-weight: 500;
}

.copy-button {
    background-color: var(--color-accent);
    color: var(--color-secondary);
    border: none;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
}

.copy-button:hover {
    background-color: var(--color-lavender);
    color: var(--color-primary);
}

.code-block pre {
    margin: 0;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.article-content blockquote {
    background-color: var(--color-lavender);
    border-left: 4px solid var(--color-accent);
    padding: 2rem;
    margin: 2rem 0;
    border-radius: var(--border-radius);
    font-style: italic;
    position: relative;
}

.article-content blockquote::before {
    content: '"';
    font-size: 4rem;
    color: var(--color-accent);
    position: absolute;
    top: -1rem;
    left: 1rem;
    font-family: serif;
}

.article-content cite {
    display: block;
    text-align: right;
    margin-top: 1rem;
    font-weight: 600;
    color: var(--color-primary);
}

.resources {
    background-color: var(--color-lavender);
    padding: 2rem;
    border-radius: var(--border-radius);
    margin: 3rem 0;
    border: 1px solid var(--color-accent);
}

.resources h2 {
    font-family: var(--font-title);
    color: var(--color-primary);
    margin-bottom: 1rem;
}

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

.resources-list li {
    margin: 1rem 0;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(109, 72, 159, 0.2);
}

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

.resources-list a {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 600;
}

.resources-list a:hover {
    text-decoration: underline;
}

.article-footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 2px solid var(--color-lavender);
}

.article-stats {
    display: flex;
    gap: 2rem;
    justify-content: center;
    margin-bottom: 3rem;
}

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

.stat-number {
    display: block;
    font-family: var(--font-title);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.author-bio {
    background-color: var(--color-lavender);
    padding: 2rem;
    border-radius: var(--border-radius);
    display: flex;
    gap: 2rem;
    align-items: center;
    border: 1px solid var(--color-accent);
}

.author-avatar {
    flex-shrink: 0;
}

.avatar-image {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--color-accent);
}

.author-info h3 {
    font-family: var(--font-title);
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.author-info p {
    color: var(--color-dark);
    margin-bottom: 1rem;
}

.author-links {
    display: flex;
    gap: 1rem;
}

.author-links a {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
}

.author-links a:hover {
    text-decoration: underline;
}

.related-articles {
    margin: 4rem 0;
}

.related-articles h2 {
    font-family: var(--font-title);
    color: var(--color-primary);
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
}

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

.related-card {
    background-color: var(--color-secondary);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--color-lavender);
    transition: var(--transition);
}

.related-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(67, 46, 103, 0.2);
}

.related-card a {
    text-decoration: none;
    color: inherit;
}

.related-image {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

.related-content {
    padding: 1.5rem;
}

.related-category {
    background-color: var(--color-accent);
    color: var(--color-secondary);
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.related-content h3 {
    font-family: var(--font-title);
    color: var(--color-primary);
    margin: 1rem 0 0.5rem 0;
    font-size: 1.1rem;
}

.related-content p {
    color: var(--color-dark);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.related-date {
    font-size: 0.8rem;
    color: var(--color-accent);
    font-weight: 500;
}


.article-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 4rem 0;
    max-width: 800px;
}

.nav-link {
    display: block;
    padding: 2rem;
    background-color: var(--color-lavender);
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid var(--color-accent);
}

.nav-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(67, 46, 103, 0.15);
}

.nav-direction {
    display: block;
    font-size: 0.9rem;
    color: var(--color-accent);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.nav-title {
    display: block;
    font-family: var(--font-title);
    color: var(--color-primary);
    font-weight: 600;
}

.nav-next .nav-link {
    text-align: right;
}

.back-to-blog {
    text-align: center;
    margin: 3rem 0;
}

/* Responsive pour les articles */
@media (max-width: 768px) {
    .article-title {
        font-size: 2rem;
    }

    .article-meta {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    .meta-left {
        justify-content: center;
    }

    .article-stats {
        justify-content: center;
    }

    .author-bio {
        flex-direction: column;
        text-align: center;
    }

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

    .article-navigation {
        grid-template-columns: 1fr;
    }

    .nav-next .nav-link {
        text-align: left;
    }
}