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

:root {
    /* Couleurs principales */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #f8fafc;
    --accent-color: #f59e0b;
    
    /* Couleurs du drapeau camerounais */
    --cameroon-green: #007a3d;
    --cameroon-red: #ce1126;
    --cameroon-yellow: #fcd116;
    
    /* Couleurs de texte */
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --text-white: #ffffff;
    
    /* Couleurs de fond */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-dark: #111827;
    
    /* Bordures */
    --border-color: #e5e7eb;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    
    /* Ombres */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
    
    /* Typographie */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Espacement */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
}

/* Base */
body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Drapeau camerounais */
.cameroon-flag {
    height: 4px;
    background: linear-gradient(to right, var(--cameroon-green) 33%, var(--cameroon-red) 33%, var(--cameroon-red) 66%, var(--cameroon-yellow) 66%);
    margin-bottom: var(--spacing-lg);
}

/* Boutons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

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

.btn-primary:hover {
    background-color: #005a2d;
    border-color: #005a2d;
}

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

.btn-outline:hover {
    background-color: var(--bg-secondary);
}

.btn-hero {
    background: linear-gradient(135deg, var(--cameroon-green), #005a2d);
    color: var(--text-white);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
    font-weight: 600;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.btn-hero:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary-hero {
    background-color: transparent;
    color: var(--text-white);
    border: 2px solid var(--text-white);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
    font-weight: 600;
    border-radius: var(--border-radius-lg);
}

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

.btn-whatsapp {
    background-color: #25d366;
    color: var(--text-white);
    border-color: #25d366;
}

.btn-whatsapp:hover {
    background-color: #128c7e;
    border-color: #128c7e;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--cameroon-green), var(--cameroon-red), var(--cameroon-yellow));
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-weight: 800;
    font-size: var(--font-size-xl);
}

.logo-text {
    display: none;
}

.logo-title {
    font-weight: 800;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
}

.logo-subtitle {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition);
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.language-toggle {
    display: flex;
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: 2px;
}

.lang-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: calc(var(--border-radius) - 2px);
    transition: var(--transition);
}

.lang-btn.active {
    background-color: var(--cameroon-green);
    color: var(--text-white);
}

.lang-btn:hover:not(.active) {
    color: var(--primary-color);
}

.auth-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition);
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg);
}

.mobile-menu.active {
    display: block;
}

.mobile-nav-list {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.mobile-nav-link {
    display: block;
    padding: var(--spacing-sm) 0;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
}

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

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

.mobile-language-toggle {
    display: flex;
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    padding: 2px;
    width: fit-content;
}

.mobile-auth-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -2;
}

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 122, 61, 0.95), rgba(206, 17, 38, 0.95));
    z-index: -1;
}

.hero-language-toggle {
    position: absolute;
    top: var(--spacing-xl);
    right: var(--spacing-xl);
    z-index: 10;
    display: flex;
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    padding: 2px;
}

.hero-language-toggle .lang-btn {
    color: rgba(255, 255, 255, 0.7);
}

.hero-language-toggle .lang-btn.active {
    background-color: rgba(255, 255, 255, 0.2);
    color: var(--text-white);
}

.hero-language-toggle .lang-btn:hover:not(.active) {
    color: var(--text-white);
}

.hero-content {
    text-align: center;
    color: var(--text-white);
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    margin-bottom: var(--spacing-xl);
    color: var(--accent-color);
}

.hero-text {
    margin-bottom: var(--spacing-xl);
}

.hero-vision {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    line-height: 1.4;
}

.hero-description {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    line-height: 1.5;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.hero-location {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    opacity: 0.8;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-white);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* Sections */
section {
    padding: var(--spacing-4xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.section-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.section-language-toggle {
    display: flex;
    justify-content: flex-end;
    margin-bottom: var(--spacing-xl);
}

.section-footer {
    text-align: center;
    margin-top: var(--spacing-4xl);
}

/* Laboratories Section */
.laboratories {
    background-color: var(--bg-secondary);
}

.laboratories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-4xl);
}

.laboratory-card {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
}

.laboratory-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.laboratory-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
    display: block;
}

.laboratory-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.laboratory-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
}

.laboratory-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.laboratory-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.laboratory-features li::before {
    content: '';
    width: 6px;
    height: 6px;
    background-color: var(--primary-color);
    border-radius: 50%;
    flex-shrink: 0;
}

.laboratory-link {
    color: var(--primary-color);
    font-weight: 500;
    text-decoration: none;
    font-size: var(--font-size-sm);
}

.laboratory-link:hover {
    color: var(--primary-dark);
}

/* Blog Section */
/* Blog Section */
.blog {
    background-color: var(--bg-secondary);
    padding: var(--spacing-4xl) 0;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-4xl);
}

.blog-card {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    border: 1px solid var(--border-color);
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: var(--cameroon-green);
}

.blog-image-container {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.blog-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.blog-image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--cameroon-green), var(--cameroon-red));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-2xl);
    position: relative;
}

.blog-image-placeholder i {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.8;
}

.blog-image-placeholder span {
    font-size: var(--font-size-lg);
    font-weight: 700;
    opacity: 0.9;
}

.blog-featured-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background-color: var(--cameroon-yellow);
    color: var(--text-primary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

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

.blog-category {
    display: inline-block;
    background-color: var(--cameroon-green);
    color: var(--text-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-xs);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.blog-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-excerpt {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-md);
}

.blog-date {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.blog-date i {
    color: var(--cameroon-green);
}

.blog-read-more {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--cameroon-green);
    font-weight: 600;
    transition: all 0.3s ease;
}

.blog-card:hover .blog-read-more {
    color: var(--cameroon-red);
    transform: translateX(4px);
}

.blog-read-more i {
    transition: transform 0.3s ease;
}

.blog-card:hover .blog-read-more i {
    transform: translateX(4px);
}

/* Responsive Blog */
@media (max-width: 768px) {
    .blog-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .blog-card {
        margin: 0 var(--spacing-md);
    }
    
    .blog-image-container {
        height: 180px;
    }
    
    .blog-content {
        padding: var(--spacing-lg);
    }
    
    .blog-title {
        font-size: var(--font-size-lg);
    }
}

/* Article Page Styles */
.article-page-body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

/* Header Simplifié pour Article */
.article-header-simple {
    background-color: white;
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-lg) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.article-header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.article-header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.article-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--text-primary);
    transition: opacity 0.3s ease;
}

.article-logo:hover {
    opacity: 0.8;
}

.article-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.breadcrumb-home,
.breadcrumb-blog {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb-home:hover,
.breadcrumb-blog:hover {
    color: var(--cameroon-green);
}

.breadcrumb-separator {
    color: var(--text-muted);
}

.article-header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
}

.article-main-content {
    background-color: var(--bg-primary);
    min-height: calc(100vh - 80px);
}

.article-page {
    padding: var(--spacing-4xl) 0;
    background-color: var(--bg-primary);
}

.article-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    background-color: white;
    border-radius: var(--border-radius-xl);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.article-header {
    padding: var(--spacing-2xl) var(--spacing-xl) var(--spacing-xl);
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.article-meta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.article-category {
    background-color: var(--cameroon-green);
    color: var(--text-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.article-date {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.article-date::before {
    content: "\f133";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: var(--cameroon-green);
}

.article-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
    margin: 0;
}

.article-image-container {
    margin: 0;
    border-radius: 0;
    overflow: hidden;
}

.article-image {
    width: 100%;
    height: 300px;
    position: relative;
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--cameroon-green), var(--cameroon-red));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-2xl);
}

.article-image-placeholder i {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.8;
}

.article-image-placeholder span {
    font-size: var(--font-size-lg);
    font-weight: 700;
    opacity: 0.9;
}

.article-content {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--text-primary);
    padding: var(--spacing-2xl) var(--spacing-xl);
}

.article-content h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin: var(--spacing-2xl) 0 var(--spacing-lg) 0;
}

.article-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin: var(--spacing-xl) 0 var(--spacing-md) 0;
}

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

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

.article-content li {
    margin-bottom: var(--spacing-sm);
}

.article-content blockquote {
    border-left: 4px solid var(--cameroon-green);
    padding-left: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    font-style: italic;
    color: var(--text-secondary);
    background-color: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
}

.article-footer {
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-xl);
    background-color: var(--bg-secondary);
}

.article-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
}

.article-share {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.share-label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

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

.share-btn {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all 0.3s ease;
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.share-btn.facebook {
    background-color: #1877f2;
}

.share-btn.twitter {
    background-color: #1da1f2;
}

.share-btn.linkedin {
    background-color: #0077b5;
}

.share-btn.whatsapp {
    background-color: #25d366;
}

.article-navigation {
    display: flex;
    align-items: center;
}

/* Related Articles */
.related-articles {
    background-color: var(--bg-secondary);
    padding: var(--spacing-4xl) 0;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.related-article {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    cursor: pointer;
}

.related-article:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.related-article-image {
    height: 200px;
    background: linear-gradient(135deg, var(--cameroon-green), var(--cameroon-red));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.related-article-image i {
    font-size: 2rem;
    opacity: 0.8;
}

.related-article-content {
    padding: var(--spacing-lg);
}

.related-article-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.related-article-excerpt {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    text-align: center;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--cameroon-green);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-lg);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-spinner p {
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
    font-weight: 600;
}

/* Responsive Article Page */
@media (max-width: 768px) {
    .article-header-simple {
        padding: var(--spacing-md) 0;
    }
    
    .article-header-content {
        flex-direction: column;
        gap: var(--spacing-md);
        padding: 0 var(--spacing-md);
    }
    
    .article-header-left {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: center;
    }
    
    .article-header-right {
        flex-direction: row;
        gap: var(--spacing-md);
    }
    
    .article-container {
        margin: var(--spacing-md);
        padding: 0;
        border-radius: var(--border-radius-lg);
    }
    
    .article-header {
        padding: var(--spacing-xl) var(--spacing-lg);
    }
    
    .article-title {
        font-size: var(--font-size-2xl);
    }
    
    .article-image {
        height: 200px;
    }
    
    .article-meta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .article-content {
        padding: var(--spacing-xl) var(--spacing-lg);
        font-size: var(--font-size-base);
    }
    
    .article-actions {
        flex-direction: column;
        gap: var(--spacing-lg);
        align-items: center;
    }
    
    .article-share {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: center;
    }
    
    .related-grid {
        grid-template-columns: 1fr;
    }
}

/* About Page Styles */
.about-hero {
    background: linear-gradient(135deg, var(--cameroon-green), var(--cameroon-red));
    padding: var(--spacing-4xl) 0;
    text-align: center;
    color: white;
}

.about-hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.about-hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.about-hero-subtitle {
    font-size: var(--font-size-xl);
    font-weight: 400;
    opacity: 0.9;
    line-height: 1.6;
}

.about-content {
    padding: var(--spacing-4xl) 0;
    background-color: var(--bg-primary);
}

.about-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.about-image-container {
    position: relative;
}

.about-image {
    width: 100%;
    height: 400px;
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--cameroon-green), var(--cameroon-red));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-2xl);
}

.about-image-placeholder i {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.8;
}

.about-image-placeholder span {
    font-size: var(--font-size-xl);
    font-weight: 700;
    opacity: 0.9;
}

.about-text-content {
    padding-left: var(--spacing-xl);
}

.about-text {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--text-primary);
    margin-bottom: var(--spacing-2xl);
}

.about-text h2,
.about-text h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

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

.about-mission-vision {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.mission-card,
.vision-card {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: transform 0.3s ease;
}

.mission-card:hover,
.vision-card:hover {
    transform: translateY(-4px);
}

.mission-icon,
.vision-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--cameroon-green), var(--cameroon-red));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    color: white;
    font-size: var(--font-size-xl);
}

.mission-title,
.vision-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.mission-text,
.vision-text {
    color: var(--text-secondary);
    line-height: 1.6;
}

.about-values {
    background-color: var(--bg-secondary);
    padding: var(--spacing-4xl) 0;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.value-card {
    background-color: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.value-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.value-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--cameroon-green), var(--cameroon-red));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    color: white;
    font-size: var(--font-size-2xl);
}

.value-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.value-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

.about-team {
    background-color: var(--bg-primary);
    padding: var(--spacing-4xl) 0;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.team-member {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.team-member:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.team-member-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto var(--spacing-lg);
    overflow: hidden;
    background: linear-gradient(135deg, var(--cameroon-green), var(--cameroon-red));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-2xl);
}

.team-member-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-member-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.team-member-role {
    color: var(--cameroon-green);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.team-member-bio {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: var(--font-size-sm);
}

/* Responsive About Page */
@media (max-width: 768px) {
    .about-hero {
        padding: var(--spacing-3xl) 0;
    }
    
    .about-hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .about-hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .about-wrapper {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .about-text-content {
        padding-left: 0;
    }
    
    .about-image {
        height: 250px;
    }
    
    .about-mission-vision {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

/* Testimonials Section */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-4xl);
}

.testimonial-card {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.testimonial-header {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.testimonial-avatar {
    font-size: 3rem;
    flex-shrink: 0;
}

.testimonial-info {
    flex: 1;
}

.testimonial-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.testimonial-revenue {
    background-color: #10b981;
    color: var(--text-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: var(--font-size-xs);
    font-weight: 500;
    display: inline-block;
    margin-bottom: var(--spacing-sm);
}

.testimonial-role {
    font-size: var(--font-size-sm);
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

.testimonial-content {
    color: var(--text-secondary);
    line-height: 1.6;
    font-style: italic;
}

/* Contact Section */
.contact {
    background-color: var(--bg-secondary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
}

.contact-form-container {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

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

.form-group label {
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    transition: var(--transition);
}

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

.form-actions {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.info-card {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.info-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.info-item i {
    color: var(--primary-color);
    margin-top: 2px;
    flex-shrink: 0;
}

.info-item strong {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.info-item span {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.services-list {
    list-style: none;
}

.services-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.services-list li::before {
    content: '';
    width: 6px;
    height: 6px;
    background-color: var(--primary-color);
    border-radius: 50%;
    flex-shrink: 0;
}

/* WhatsApp Contact Styles */
.whatsapp-contact {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #25D366;
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 8px 12px;
    border-radius: 8px;
}

.whatsapp-contact:hover {
    background: rgba(37, 211, 102, 0.1);
    color: #128C7E;
    transform: translateY(-1px);
}

.whatsapp-contact i {
    font-size: 18px;
    color: #25D366;
}

.whatsapp-contact:hover i {
    color: #128C7E;
}

.whatsapp-contact strong,
.whatsapp-contact span {
    color: inherit;
}

/* Bouton WhatsApp flottant */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #25D366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 24px;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
    transition: all 0.3s ease;
    z-index: 1000;
}

.whatsapp-float:hover {
    background: #128C7E;
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

/* Footer */
.footer {
    background-color: var(--cameroon-green);
    color: var(--text-white);
    padding: var(--spacing-4xl) 0 var(--spacing-xl);
    position: relative;
}

.footer-language-toggle {
    display: flex;
    justify-content: flex-end;
    margin-bottom: var(--spacing-3xl);
    position: absolute;
    top: var(--spacing-xl);
    right: var(--spacing-xl);
}

.footer-language-toggle .lang-btn {
    color: var(--text-white);
    background-color: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.footer-language-toggle .lang-btn.active {
    background-color: var(--cameroon-green);
    color: var(--text-white);
    border-color: var(--cameroon-green);
}

.footer-language-toggle .lang-btn:hover:not(.active) {
    color: var(--text-white);
    background-color: rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-4xl);
    margin-bottom: var(--spacing-4xl);
    margin-top: var(--spacing-2xl);
}

.footer-section h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.footer-logo .logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-weight: 800;
    font-size: var(--font-size-2xl);
}

.footer-logo .logo-title {
    font-weight: 800;
    font-size: var(--font-size-xl);
}

.footer-logo .logo-subtitle {
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

.footer-section p {
    opacity: 0.8;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

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

.social-link {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

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

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--text-white);
}

.footer-contact {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.footer-contact h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.contact-item i {
    color: var(--accent-color);
    margin-top: 2px;
    flex-shrink: 0;
}

.contact-item strong {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.contact-item span {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.footer-bottom p {
    opacity: 0.8;
    font-size: var(--font-size-sm);
}

.footer-legal {
    display: flex;
    gap: var(--spacing-xl);
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: var(--transition);
}

.footer-legal a:hover {
    color: var(--text-white);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    max-width: 500px;
    width: 90%;
    box-shadow: var(--shadow-xl);
    transform: scale(0.9);
    transition: var(--transition);
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.modal-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    color: var(--text-secondary);
    cursor: pointer;
    padding: var(--spacing-xs);
}

.modal-body p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .logo-text {
        display: none;
    }
    
    .nav {
        display: none;
    }
    
    .auth-buttons {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-xl);
    }
    
    .hero-vision {
        font-size: var(--font-size-lg);
    }
    
    .hero-description {
        font-size: var(--font-size-base);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    .section-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .laboratories-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .laboratory-card,
    .testimonial-card,
    .contact-form-container,
    .info-card {
        padding: var(--spacing-lg);
    }
}