:root {
    --color-primary: #2563eb;
    --color-bg: #ffffff;
    --color-surface: #f8fafc;
    --color-border: #e2e8f0;
    --color-text: #1e293b;
    --color-text-light: #64748b;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --border-radius: 0.5rem;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 18px;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

@media (min-width: 1400px) {
    .container {
        max-width: 1280px;
    }
}

.site-header {
    background: var(--color-surface);
    border-bottom: 2px solid var(--color-border);
    padding: var(--spacing-lg) 0;
    margin-bottom: var(--spacing-xl);
}

.site-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

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

 .site-header-bar {
     display: flex;
     align-items: center;
     justify-content: space-between;
     gap: var(--spacing-sm);
 }

 .admin-edit-link {
     display: inline-flex;
     align-items: center;
     justify-content: center;
     width: 40px;
     height: 40px;
     border-radius: 999px;
     border: 1px solid var(--color-border);
     background: var(--color-bg);
     color: var(--color-primary);
     text-decoration: none;
 }

 .admin-edit-link:hover {
     background: var(--color-primary);
     color: #fff;
     border-color: var(--color-primary);
 }

.site-intro {
    font-size: 20px;
    color: var(--color-text-light);
    margin-top: var(--spacing-sm);
    line-height: 1.6;
}

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

.post {
    background: var(--color-surface);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-lg);
    border: 2px solid var(--color-border);
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

@media (max-width: 500px) {
    .post {
        flex-direction: column;
    }

    .post-featured-image {
        width: 100%;
        height: auto;
        order: -1;
    }

    .post-featured-image img {
        width: 100%;
        height: auto;
    }
}

.post-featured-image {
    width: 120px;
    height: 120px;
    flex-shrink: 0;
    order: -1;
}

.post-featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--border-radius);
    display: block;
}

.post-content-wrapper {
    flex: 1;
    min-width: 0;
}

.post-title {
    font-size: 28px;
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.post-title a {
    color: var(--color-text);
    text-decoration: none;
}

.post-title a:hover {
    color: var(--color-primary);
}

.post-date {
    color: var(--color-text-light);
    font-size: 16px;
    margin-bottom: var(--spacing-md);
}

.post-excerpt {
    margin-bottom: var(--spacing-md);
    font-size: 18px;
    line-height: 1.7;
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    font-size: 14px;
    font-variant: all-small-caps;
    letter-spacing: 0.02em;
    color: var(--color-text-light);
}

.read-more {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 18px;
}

.read-more:hover {
    text-decoration: underline;
}

.post-single {
    background: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    border: 2px solid var(--color-border);
}

.post-single .post-title {
    font-size: 36px;
    margin-bottom: var(--spacing-sm);
}

.post-single .post-featured-image {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.post-single .post-featured-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
}

.post-content {
    margin-top: var(--spacing-lg);
    font-size: 20px;
    line-height: 1.8;
}

.post-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin: var(--spacing-lg) 0;
}

.post-content p {
    margin-bottom: var(--spacing-md);
}

.post-content h2 {
    font-size: 28px;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.post-content h3 {
    font-size: 24px;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

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

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

.post-content a {
    color: var(--color-primary);
    text-decoration: underline;
}

.post-footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--color-border);
}

.back-link {
    color: var(--color-primary);
    text-decoration: none;
    font-size: 18px;
}

.back-link:hover {
    text-decoration: underline;
}

.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: var(--color-surface);
    border-radius: var(--border-radius);
    border: 2px solid var(--color-border);
}

.pagination-link {
    color: var(--color-primary);
    text-decoration: none;
    font-size: 18px;
    font-weight: 500;
}

.pagination-link:hover {
    text-decoration: underline;
}

.pagination-info {
    color: var(--color-text-light);
    font-size: 16px;
}

.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--color-surface);
    border-radius: var(--border-radius);
    border: 2px solid var(--color-border);
}

.empty-state p {
    font-size: 20px;
    color: var(--color-text-light);
}

/* Sidebar and content layout */
.content-with-sidebar {
    display: grid;
    grid-template-columns: 7fr 3fr;
    gap: var(--spacing-xl);
    align-items: start;
}

@media (min-width: 1024px) {
    .content-with-sidebar {
        gap: var(--spacing-lg);
    }
}

.main-content {
    min-width: 0;
}

.sidebar {
    position: static;
}

.sidebar-section {
    background: var(--color-surface);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border: 2px solid var(--color-border);
    margin-bottom: var(--spacing-md);
}

.sidebar-section h3 {
    font-size: 18px;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    font-weight: 600;
}

/* Recent posts list */
.recent-posts-list {
    list-style: none;
}

.recent-posts-list li {
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

.recent-posts-list li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.recent-posts-list a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    display: block;
    margin-bottom: 4px;
}

.recent-posts-list a:hover {
    color: var(--color-primary);
}

.post-date-small {
    font-size: 14px;
    color: var(--color-text-light);
}

/* Archive list */
.archive-list {
    list-style: none;
}

.archive-year {
    margin-bottom: var(--spacing-sm);
}

.archive-year > a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
}

.archive-year > a:hover {
    color: var(--color-primary);
}

.archive-months {
    list-style: none;
    margin-top: 8px;
    margin-left: var(--spacing-sm);
}

.archive-months li {
    margin-bottom: 6px;
}

.archive-months a {
    color: var(--color-text-light);
    text-decoration: none;
    font-size: 14px;
}

.archive-months a:hover {
    color: var(--color-primary);
}

.archive-months .count {
    font-size: 12px;
    color: var(--color-text-light);
}

/* Tag cloud */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-cloud-item {
    color: var(--color-text);
    text-decoration: none;
    padding: 4px 10px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    transition: all 0.2s;
    font-variant: all-small-caps;
    letter-spacing: 0.02em;
    font-size: 14px;
}

.tag-cloud-item:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.tag-count {
    font-size: 0.85em;
    color: var(--color-text-light);
}

.tag-cloud-item:hover .tag-count {
    color: rgba(255, 255, 255, 0.8);
}

/* Filter info */
.filter-info {
    background: var(--color-surface);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border: 2px solid var(--color-primary);
    margin-bottom: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.filter-info span {
    color: var(--color-text);
}

.clear-filter {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
}

.clear-filter:hover {
    text-decoration: underline;
}

/* Make tags clickable */
.post-tags a.tag {
    color: var(--color-text-light);
    text-decoration: none;
    transition: all 0.2s;
}

.post-tags a.tag:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

/* Post navigation (prev/next) */
.post-navigation {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg) 0;
    border-bottom: 2px solid var(--color-border);
}

.nav-prev,
.nav-next {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: background 0.2s;
    max-width: 45%;
}

.nav-prev {
    align-items: flex-start;
}

.nav-next {
    align-items: flex-end;
    text-align: right;
}

.nav-prev:hover,
.nav-next:hover {
    background: var(--color-surface);
}

.nav-label {
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: 4px;
}

.nav-title {
    font-size: 16px;
    color: var(--color-text);
    font-weight: 500;
}

.nav-prev:hover .nav-title,
.nav-next:hover .nav-title {
    color: var(--color-primary);
}

.site-footer {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg) 0;
    border-top: 2px solid var(--color-border);
    text-align: center;
    color: var(--color-text-light);
}

@media (max-width: 768px) {
    body {
        font-size: 16px;
    }

    .site-title {
        font-size: 24px;
    }

    .post-title {
        font-size: 22px;
    }

    .post-single .post-title {
        font-size: 28px;
    }

    .post-content {
        font-size: 18px;
    }

    .pagination {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    /* Stack sidebar below content on mobile */
    .content-with-sidebar {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        position: static;
    }
    
    /* Adjust post navigation for mobile */
    .post-navigation {
        flex-direction: column;
    }
    
    .nav-prev,
    .nav-next {
        max-width: 100%;
    }
    
    .nav-next {
        align-items: flex-start;
        text-align: left;
    }
}