/* Variables globales */
:root {
    --primary-color: #0B3C7E;
    --secondary-color: #4299E1;
    --accent-color: #FF6B6B;
    --background-color: #F0F4F8;
    --text-color: #2D3748;
    --white: #FFFFFF;
    --shadow: 0 2px 15px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

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

/* Header et Navigation */
.site-header {
    background: var(--white);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.logo {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 3rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.1rem;
    transition: var(--transition);
    position: relative;
    padding-bottom: 0.25rem;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

/* Bouton Connexion */
.nav-links .btn-connexion {
    background: var(--primary-color);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
}

.nav-links .btn-connexion:hover {
    background: var(--accent-color);
    color: var(--white);
}

/* Bouton Demo */
.btn-demo {
    background: var(--accent-color);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    margin-left: 1rem;
}

.btn-demo:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color), #0a4da0);
    padding: 8rem 0 6rem;
    margin-top: 4rem;
    text-align: center;
    color: var(--white);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: url('/assets/images/hero-pattern.svg') no-repeat center right;
    opacity: 0.1;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    color: var(--white);
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero .lead {
    font-size: 1.5rem;
    max-width: 700px;
    margin: 0 auto;
    opacity: 0.9;
}

/* Cards Grid */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    padding: 5rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(0,0,0,0.1);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-bottom: 3px solid var(--accent-color);
}

.card-body {
    padding: 1.5rem;
}

.card h2 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.badge {
    background: var(--secondary-color);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
}

.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 4px;
    margin-top: 1rem;
    transition: var(--transition);
}

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

/* Categories Section */
.categories-section {
    background: var(--background-color);
    padding: 5rem 0;
}

.categories-section h2 {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 2.5rem;
    color: var(--primary-color);
}

.categories-list {
    max-width: 1200px;
    margin: 0 auto;
    gap: 1.5rem;
}

.category-item {
    background: var(--white);
    padding: 1.2rem;
    text-align: center;
    text-decoration: none;
    color: var(--text-color);
    border-radius: 8px;
    transition: var(--transition);
    font-weight: 500;
    box-shadow: var(--shadow);
}

.category-item:hover {
    background: var(--primary-color);
    color: var(--white);
}

/* Footer */
.site-footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 4rem;
}

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

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

.footer-section a {
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
}

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

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    font-size: 1.5rem;
    background: rgba(255,255,255,0.1);
    padding: 0.8rem;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.social-links a:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Responsive Design */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 1rem;
        text-align: center;
    }

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

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

    .hero .lead {
        font-size: 1.25rem;
    }
}

.category-header {
    padding: 2rem 0;
    margin-bottom: 2rem;
    border-bottom: 1px solid #eee;
}

.category-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

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

.categories-sidebar {
    background: #f5f5f5;
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 2rem;
}

.categories-sidebar h3 {
    margin-bottom: 1rem;
}

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

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

.categories-list a {
    color: #333;
    text-decoration: none;
    padding: 0.5rem 0;
    display: block;
}

.categories-list a:hover {
    color: #007bff;
}

.categories-list a.active {
    color: #007bff;
    font-weight: bold;
}

.no-articles {
    grid-column: 1 / -1;
    text-align: center;
    padding: 2rem;
    background: #f5f5f5;
    border-radius: 8px;
}

/* Styles spécifiques pour les articles */
.article-content {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.article-header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--light-gray);
}

.article-date {
    color: #666;
    font-size: 0.9rem;
    display: block;
    margin-bottom: 1rem;
}

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

.article-body {
    font-size: 1.1rem;
    line-height: 1.8;
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

.article-body p {
    margin-bottom: 1.5rem;
    max-width: 100%;
}

.article-body h2 {
    font-size: 1.8rem;
    margin: 2.5rem 0 1rem;
    color: var(--primary-color);
}

.article-body img {
    max-width: 100%;
    height: auto;
    margin: 2rem 0;
    border-radius: 8px;
}

.article-body blockquote {
    margin: 2rem 0;
    padding: 1rem 2rem;
    border-left: 4px solid var(--secondary-color);
    background: var(--light-gray);
    font-style: italic;
}

/* Styles responsifs pour les articles */
@media (max-width: 768px) {
    .article-content {
        padding: 1rem;
        margin: 1rem;
    }

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

/* Styles pour le menu déroulant */
.dropdown {
    position: relative;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    min-width: 200px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    border-radius: 4px;
    padding: 0.5rem 0;
    z-index: 1000;
}

.dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-menu li {
    list-style: none;
}

.dropdown-menu a {
    padding: 0.5rem 1rem;
    display: block;
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
}

.dropdown-menu a:hover {
    background-color: var(--light-gray);
    color: var(--primary-color);
}

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

.pagination ul {
    display: flex;
    justify-content: center;
    list-style: none;
    padding: 0;
    gap: 0.5rem;
}

.pagination li {
    margin: 0 0.25rem;
}

.pagination a {
    display: inline-block;
    padding: 0.5rem 1rem;
    text-decoration: none;
    border: 1px solid #ddd;
    border-radius: 4px;
    color: #333;
}

.pagination li.active a {
    background-color: #007bff;
    color: white;
    border-color: #007bff;
}

.pagination a:hover {
    background-color: #f8f9fa;
} 
/* Ajout des styles responsifs pour le menu déroulant */
@media (max-width: 768px) {
    .dropdown-menu {
        position: static;
        box-shadow: none;
        background: var(--light-gray);
        margin: 0.5rem 0;
    }

    .dropdown-menu li a {
        padding-left: 2rem;
    }
}

/* Ajout du style pour le placeholder d'image */
.card .image-placeholder {
    width: 100%;
    height: 220px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-bottom: 3px solid var(--accent-color);
}