* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #f8fafc 0%, #e0f2fe 100%);
    color: #1f2937;
    line-height: 1.6;
}

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

/* Hero Section */
.hero-section {
    position: relative;
    background: linear-gradient(135deg, #8b5cf6 0%, #3b82f6 50%, #10b981 100%);
    color: white;
    padding: 80px 0;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.2);
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    background: linear-gradient(to right, #ffffff, #e0f2fe);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #e0f2fe;
}

.hero-description {
    font-size: 1.1rem;
    color: #bfdbfe;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

/* Search and Filter Section */
.search-filter-section {
    background: white;
    padding: 32px 0;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid #e5e7eb;
}

.search-filter-content {
    display: flex;
    gap: 24px;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.search-box {
    position: relative;
    flex: 1;
    max-width: 400px;
}

.search-box input {
    width: 100%;
    padding: 12px 16px 12px 48px;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.3s ease;
}

.search-box input:focus {
    outline: none;
    border-color: #8b5cf6;
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: #9ca3af;
}

.category-filter select {
    padding: 12px 40px 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    font-size: 16px;
    background: white;
    cursor: pointer;
    min-width: 250px;
    transition: all 0.3s ease;
}

.category-filter select:focus {
    outline: none;
    border-color: #8b5cf6;
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

/* Main Content */
.main-content {
    padding: 48px 0;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 48px;
}

/* Articles Section */
.section-header {
    margin-bottom: 32px;
}

.section-header h2 {
    font-size: 2rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 8px;
}

.section-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, #8b5cf6, #3b82f6);
    border-radius: 2px;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.article-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}

.article-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.article-card.featured {
    grid-column: 1 / -1;
    border: 2px solid #8b5cf6;
}

.article-image {
    position: relative;
    height: 200px;
    background-size: cover;
    background-position: center;
}

.article-category {
    position: absolute;
    top: 16px;
    left: 16px;
    background: linear-gradient(135deg, #8b5cf6, #3b82f6);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.featured-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: #fbbf24;
    color: #92400e;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.article-content {
    padding: 24px;
}

.article-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 12px;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.article-card:hover .article-title {
    color: #8b5cf6;
}

.article-excerpt {
    color: #6b7280;
    margin-bottom: 16px;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    color: #6b7280;
}

.article-author-date {
    display: flex;
    gap: 16px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.widget {
    background: white;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.widget-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 16px;
}

/* Categories List */
.categories-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.category-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.category-item:hover {
    background: #f3f4f6;
}

.category-item.active {
    background: linear-gradient(135deg, #8b5cf6, #3b82f6);
    color: white;
}

.category-count {
    background: #e5e7eb;
    color: #6b7280;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.category-item.active .category-count {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

/* Popular Articles */
.popular-articles {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.popular-article {
    display: flex;
    gap: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.popular-article:hover {
    transform: translateX(4px);
}

.popular-article-image {
    width: 60px;
    height: 45px;
    border-radius: 8px;
    background-size: cover;
    background-position: center;
    flex-shrink: 0;
}

.popular-article-content {
    flex: 1;
    min-width: 0;
}

.popular-article-title {
    font-size: 14px;
    font-weight: 500;
    color: #1f2937;
    line-height: 1.4;
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.3s ease;
}

.popular-article:hover .popular-article-title {
    color: #8b5cf6;
}

.popular-article-date {
    font-size: 12px;
    color: #6b7280;
}

/* Newsletter Widget */
.newsletter-widget {
    background: linear-gradient(135deg, #8b5cf6, #3b82f6);
    color: white;
}

.newsletter-widget .widget-title {
    color: white;
}

.newsletter-description {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 16px;
    font-size: 14px;
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.newsletter-form input {
    padding: 12px 16px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    outline: none;
}

.newsletter-form button {
    background: white;
    color: #8b5cf6;
    border: none;
    padding: 12px 16px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.newsletter-form button:hover {
    background: #f8fafc;
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .content-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .sidebar {
        order: -1;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .search-filter-content {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-box {
        max-width: none;
    }
    
    .category-filter select {
        min-width: auto;
        width: 100%;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .article-card.featured {
        grid-column: 1;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-section {
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .widget {
        padding: 20px;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-out;
}

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

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    padding: 3rem 0 1rem;
}

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

.footer-logo-icon {
    height: 40px;
    width: auto;
    margin-bottom: 1rem;
}

.footer-desc {
    color: #bdc3c7;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

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

.social-links a {
    color: #bdc3c7;
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: #4A90E2;
}

.footer-column h4 {
    margin-bottom: 1rem;
    color: #4A90E2;
}

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

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

.footer-column ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-item i {
    color: #4A90E2;
    margin-top: 0.2rem;
}

.contact-item a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-desktop {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-tarifs h1 {
        font-size: 2.5rem;
    }
    
    .tarifs-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-btn {
        width: 200px;
        justify-content: center;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .dropdown-content {
        min-width: 300px;
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-tarifs {
        padding: 6rem 0 3rem;
    }
    
    .hero-tarifs h1 {
        font-size: 2rem;
    }
    
    .pricing-card {
        padding: 1.5rem;
    }
    
    .amount {
        font-size: 2rem;
    }
}