/* Reset ve Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #2d3748;
    background-color: #ffffff;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: #1a202c;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    color: #4a5568;
}

a {
    color: #3182ce;
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: #2c5282;
}

img {
    max-width: 100%;
    height: auto;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    background: #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

.logo h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #1a202c;
    margin: 0;
}

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

.nav-link {
    font-weight: 500;
    color: #4a5568;
    transition: color 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
    color: #3182ce;
}

/* Main Content */
.main {
    min-height: calc(100vh - 200px);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: white;
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
    color: white;
}

/* Blog Posts Section */
.blog-posts {
    padding: 4rem 0;
    background: #f7fafc;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
    color: #1a202c;
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.post-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.post-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.post-image {
    height: 200px;
    overflow: hidden;
}

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

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

.post-content {
    padding: 1.5rem;
}

.post-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: #718096;
}

.post-date {
    color: #718096;
}

.post-category {
    background: #e2e8f0;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    color: #4a5568;
    font-weight: 500;
}

.post-title {
    margin-bottom: 0.75rem;
}

.post-title a {
    color: #1a202c;
    font-weight: 600;
    font-size: 1.25rem;
}

.post-title a:hover {
    color: #3182ce;
}

.post-excerpt {
    color: #718096;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.read-more {
    color: #3182ce;
    font-weight: 500;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.read-more:hover {
    color: #2c5282;
}

/* Blog Article Page */
.blog-article {
    padding: 2rem 0;
}

.article-header {
    max-width: 800px;
    margin: 0 auto 3rem;
    text-align: center;
}

.breadcrumb {
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: #718096;
}

.breadcrumb a {
    color: #3182ce;
}

.breadcrumb span {
    margin: 0 0.5rem;
    color: #cbd5e0;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    font-size: 0.875rem;
    color: #718096;
}

.article-category {
    background: #e2e8f0;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    color: #4a5568;
    font-weight: 500;
}

.article-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #1a202c;
}

.article-subtitle {
    font-size: 1.25rem;
    color: #718096;
    margin-bottom: 2rem;
    line-height: 1.5;
}

.article-image {
    margin-bottom: 3rem;
    border-radius: 12px;
    overflow: hidden;
}

.article-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

.content-wrapper {
    max-width: 800px;
}

.lead {
    font-size: 1.125rem;
    color: #4a5568;
    margin-bottom: 2rem;
    font-weight: 400;
}

.content-wrapper h2 {
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: #1a202c;
}

.content-wrapper h3 {
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    color: #2d3748;
}

.content-wrapper p {
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.content-wrapper ul {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.content-wrapper li {
    margin-bottom: 0.5rem;
    color: #4a5568;
}

blockquote {
    border-left: 4px solid #3182ce;
    padding-left: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    color: #4a5568;
    background: #f7fafc;
    padding: 1.5rem;
    border-radius: 0 8px 8px 0;
}

.article-tags {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid #e2e8f0;
}

.article-tags h4 {
    margin-bottom: 1rem;
    color: #2d3748;
}

.tag {
    display: inline-block;
    background: #edf2f7;
    color: #4a5568;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
}

/* Sidebar */
.article-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.author-card,
.related-posts,
.share-buttons {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    margin-bottom: 1.5rem;
}

.author-card {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.author-avatar img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.author-info h4 {
    margin-bottom: 0.5rem;
    color: #1a202c;
}

.author-info p {
    font-size: 0.875rem;
    color: #718096;
    margin: 0;
}

.related-posts h4,
.share-buttons h4 {
    margin-bottom: 1rem;
    color: #1a202c;
}

.related-post {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #f1f5f9;
}

.related-post:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.related-post img {
    width: 60px;
    height: 60px;
    border-radius: 8px;
    object-fit: cover;
}

.related-post h5 {
    margin-bottom: 0.25rem;
    font-size: 0.875rem;
}

.related-post h5 a {
    color: #2d3748;
}

.related-post span {
    font-size: 0.75rem;
    color: #718096;
}

.share-links {
    display: flex;
    gap: 0.5rem;
}

.share-btn {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    text-align: center;
    transition: all 0.2s ease;
}

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

.share-btn.facebook {
    background: #4267b2;
    color: white;
}

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

.share-btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

/* Comments Section */
.comments-section {
    background: #f7fafc;
    padding: 3rem 0;
}

.comments-section h3 {
    margin-bottom: 2rem;
    color: #1a202c;
}

.comment-form {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    max-width: 600px;
}

.comment-form h4 {
    margin-bottom: 1.5rem;
    color: #1a202c;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #2d3748;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3182ce;
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.1);
}

.btn-submit {
    background: #3182ce;
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.btn-submit:hover {
    background: #2c5282;
}

/* Footer */
.footer {
    background: #1a202c;
    color: #e2e8f0;
    padding: 3rem 0 1rem;
}

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

.footer-section h5 {
    color: white;
    margin-bottom: 1rem;
}

.footer-section p {
    color: #a0aec0;
    line-height: 1.6;
}

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

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

.footer-section ul li a {
    color: #a0aec0;
    transition: color 0.2s ease;
}

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

.footer-bottom {
    border-top: 1px solid #2d3748;
    padding-top: 1rem;
    text-align: center;
}

.footer-bottom p {
    color: #a0aec0;
    margin: 0;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .article-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .article-sidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu {
        gap: 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .article-title {
        font-size: 2rem;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .posts-grid {
        grid-template-columns: 1fr;
    }
    
    .author-card {
        flex-direction: column;
        text-align: center;
    }
    
    .share-links {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }
    
    .hero {
        padding: 2rem 0;
    }
    
    .blog-posts {
        padding: 2rem 0;
    }
    
    .post-content {
        padding: 1rem;
    }
    
    .article-header {
        margin-bottom: 2rem;
    }
    
    .content-wrapper {
        padding: 0;
    }
    
    .comment-form {
        padding: 1.5rem;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .article-sidebar,
    .comments-section {
        display: none;
    }
    
    .article-content {
        grid-template-columns: 1fr;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
}