/* Modern, SEO Uyumlu, Hızlı Tasarım */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --accent-color: #28a745;
    --text-color: #333;
    --bg-color: #fff;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--bg-color);
}

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

/* Header */
.site-header {
    background: var(--bg-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    margin-bottom: 30px;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
}

.logo h1 {
    font-size: 24px;
    color: var(--primary-color);
    margin: 0;
}

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

.main-nav {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.main-nav a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
}

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

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
}

/* Hero Section */
.hero-section {
    text-align: center;
    padding: 60px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    margin-bottom: 40px;
}

.hero-section h1 {
    font-size: 48px;
    margin-bottom: 10px;
}

.hero-section p {
    font-size: 20px;
    opacity: 0.9;
}

/* Categories */
.categories-section {
    margin-bottom: 60px;
}

.categories-section h2 {
    font-size: 32px;
    margin-bottom: 30px;
    text-align: center;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.category-card {
    background: var(--bg-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    text-decoration: none;
    color: inherit;
    transition: transform 0.3s, box-shadow 0.3s;
    display: block;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.category-card img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

.category-card h3 {
    padding: 15px;
    margin: 0;
    font-size: 18px;
}

.category-card p {
    padding: 0 15px 15px;
    color: var(--secondary-color);
    margin: 0;
}

/* Articles */
.articles-section, .popular-section {
    margin-bottom: 60px;
}

.articles-section h2, .popular-section h2 {
    font-size: 32px;
    margin-bottom: 30px;
    text-align: center;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.article-card {
    background: var(--bg-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.article-image {
    display: block;
    overflow: hidden;
}

.article-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s;
}

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

.article-content {
    padding: 20px;
}

.article-category {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 12px;
    text-decoration: none;
    margin-bottom: 10px;
}

.article-content h3 {
    margin: 10px 0;
    font-size: 20px;
}

.article-content h3 a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s;
}

.article-content h3 a:hover {
    color: var(--primary-color);
}

.article-content p {
    color: var(--secondary-color);
    margin: 10px 0;
}

.article-meta {
    display: flex;
    gap: 15px;
    font-size: 14px;
    color: var(--secondary-color);
    margin-top: 15px;
}

/* Article Single */
.article-single {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.article-header {
    margin-bottom: 30px;
}

.article-header h1 {
    font-size: 36px;
    margin: 15px 0;
    line-height: 1.3;
}

.article-featured-image {
    margin: 30px 0;
    border-radius: 10px;
    overflow: hidden;
}

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

.article-content {
    font-size: 18px;
    line-height: 1.8;
    margin: 30px 0;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 5px;
    margin: 20px 0;
}

.article-tags {
    margin: 30px 0;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.article-tags .tag {
    background: var(--secondary-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    text-decoration: none;
    font-size: 14px;
    transition: background 0.3s;
}

.article-tags .tag:hover {
    background: var(--primary-color);
}

.article-share {
    margin: 30px 0;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.share-btn {
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    color: white;
    font-weight: 500;
    transition: opacity 0.3s;
}

.share-btn:hover {
    opacity: 0.8;
}

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

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

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

/* Related Articles */
.related-articles {
    margin: 60px 0;
}

.related-articles h2 {
    font-size: 28px;
    margin-bottom: 30px;
}

/* Comments */
.comments-section {
    max-width: 800px;
    margin: 60px auto;
    padding: 20px;
}

.comments-list {
    margin: 30px 0;
}

.comment {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.comment-author {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-size: 14px;
}

.comment-author strong {
    color: var(--primary-color);
}

.comment-content {
    color: var(--text-color);
}

.comment-form {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    margin-top: 30px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    font-size: 16px;
    font-family: inherit;
}

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

.btn {
    display: inline-block;
    padding: 12px 30px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.3s;
}

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

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

/* FAQ */
.faq-section {
    margin: 60px 0;
}

.faq-section h2 {
    font-size: 32px;
    margin-bottom: 30px;
    text-align: center;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-color);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 15px;
    box-shadow: var(--shadow);
}

.faq-question {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.faq-answer {
    color: var(--text-color);
    line-height: 1.8;
}

/* Footer */
.site-footer {
    background: #2c3e50;
    color: white;
    padding: 60px 0 20px;
    margin-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    margin-bottom: 20px;
    font-size: 20px;
}

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: color 0.3s;
}

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

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 15px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.6);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin: 40px 0;
    flex-wrap: wrap;
}

.pagination a {
    padding: 10px 15px;
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: 5px;
    text-decoration: none;
    color: var(--text-color);
    transition: all 0.3s;
}

.pagination a:hover,
.pagination a.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* 404 */
.error-404 {
    text-align: center;
    padding: 60px 20px;
}

.error-404 h1 {
    font-size: 120px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.error-404 h2 {
    font-size: 32px;
    margin-bottom: 20px;
}

.error-actions {
    margin-top: 30px;
}

/* Alert */
.alert {
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

/* Responsive */
@media (max-width: 768px) {
    .main-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-section h1 {
        font-size: 32px;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .categories-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .article-header h1 {
        font-size: 28px;
    }
    
    .error-404 h1 {
        font-size: 80px;
    }
}

/* Lazy Loading */
img[loading="lazy"] {
    opacity: 0;
    transition: opacity 0.3s;
}

img[loading="lazy"].loaded {
    opacity: 1;
}