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

:root {
    --max-width: 760px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;

    /* Light mode colors */
    --color-text: #1a1a1a;
    --color-text-secondary: #666;
    --color-link: #0066cc;
    --color-link-hover: #0052a3;
    --color-border: #e0e0e0;
    --color-bg: #ffffff;
    --color-code-bg: #f5f5f5;
}

@media (prefers-color-scheme: dark) {
    :root {
        /* Dark mode colors */
        --color-text: #e8e8e8;
        --color-text-secondary: #a0a0a0;
        --color-link: #4da6ff;
        --color-link-hover: #80c1ff;
        --color-border: #333333;
        --color-bg: #1a1a1a;
        --color-code-bg: #2a2a2a;
    }
}

html {
    font-size: 18px;
    line-height: 1.6;
}

body {
    font-family: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", "New York", Georgia, serif;
    color: var(--color-text);
    background-color: var(--color-bg);
    padding: var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

h1 {
    font-size: 2rem;
    margin-top: var(--spacing-lg);
}

h2 {
    font-size: 1.5rem;
    margin-top: var(--spacing-md);
}

h3 {
    font-size: 1.25rem;
    margin-top: var(--spacing-md);
}

p {
    margin-bottom: var(--spacing-sm);
}

a {
    color: var(--color-link);
    text-decoration: none;
}

a:hover {
    color: var(--color-link-hover);
    text-decoration: underline;
}

/* Layout */
header, main, footer {
    max-width: var(--max-width);
    margin: 0 auto;
}

main {
    margin-top: 0;
    margin-bottom: var(--spacing-xl);
}

/* Header */
.site-header {
    padding: var(--spacing-md) 0 var(--spacing-md) 0;
    margin-bottom: var(--spacing-md);
}

.site-title {
    font-size: 1.75rem;
    margin: 0;
    font-weight: 700;
}

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

.site-nav {
    margin-top: var(--spacing-sm);
}

.site-nav ul {
    list-style: none;
    display: flex;
    gap: var(--spacing-md);
}

/* Header layout for wider viewports */
@media (min-width: 640px) {
    .site-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .site-nav {
        margin-top: 0;
    }
}

/* Posts list */
.posts {
    margin-top: var(--spacing-lg);
}

.post-item {
    margin-bottom: var(--spacing-lg);
}

.post-item header h2 {
    margin: 0 0 var(--spacing-xs) 0;
    font-size: 1.25rem;
}

.post-item time {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.post-item p {
    margin-top: var(--spacing-sm);
    color: var(--color-text-secondary);
}

.post-preview {
    margin-top: var(--spacing-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.post-preview p {
    margin-bottom: var(--spacing-sm);
}

.post-preview p:last-child {
    margin-bottom: 0;
}

.post-preview img,
.post-preview figure img {
    max-width: 100%;
    height: auto;
}

.read-more {
    display: inline-block;
    margin-top: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--color-link);
    text-decoration: none;
}

.read-more:hover {
    color: var(--color-link-hover);
    text-decoration: underline;
}

/* Tags */
.post-tags {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    margin-top: var(--spacing-xs);
    font-size: 0.875rem;
}

.post-tags a {
    color: var(--color-text-secondary);
    text-decoration: none;
    margin-right: var(--spacing-xs);
}

.post-tags a:hover {
    color: var(--color-link);
    text-decoration: none;
}

/* Single post */
.single header {
    margin-bottom: var(--spacing-lg);
}

.single header h1 {
    margin-top: 0;
}

.meta {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    margin-top: var(--spacing-sm);
}

.meta time,
.meta .author {
    margin-right: var(--spacing-sm);
}

.content {
    margin-bottom: var(--spacing-lg);
}

/* Cover images */
.post-cover {
    max-width: 100%;
    height: auto;
    margin: var(--spacing-md) 0;
    border-radius: 4px;
}

/* Figures and captions */
figure {
    margin: var(--spacing-md) 0;
}

figure.centered-image {
    text-align: center;
}

figure.centered-image img {
    margin: 0 auto;
}

figure img {
    max-width: 100%;
    height: auto;
    margin: 0;
    border-radius: 4px;
    display: block;
}

.content img:not(figure img) {
    max-width: 100%;
    height: auto;
    margin: var(--spacing-md) 0;
}

figcaption {
    margin-top: 0.375rem;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    font-style: italic;
    text-align: center;
}

.content pre {
    background: var(--color-code-bg);
    padding: var(--spacing-sm);
    overflow-x: auto;
    border-radius: 4px;
    margin: var(--spacing-sm) 0;
}

.content code {
    font-family: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, "Courier New", monospace;
    font-size: 0.875em;
}

.content pre code {
    background: none;
    padding: 0;
}

.content :not(pre) > code {
    background: var(--color-code-bg);
    padding: 0.125rem 0.25rem;
    border-radius: 3px;
}

.content blockquote {
    border-left: 3px solid var(--color-border);
    padding-left: var(--spacing-sm);
    margin: var(--spacing-md) 0;
    color: var(--color-text-secondary);
    font-style: italic;
}

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

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

/* Post navigation */
.post-nav {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-lg);
    gap: var(--spacing-sm);
}

.post-nav a {
    flex: 1;
}

.post-nav .next {
    text-align: right;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    /* border-top: 1px solid var(--color-border); */
    gap: var(--spacing-sm);
}

.pagination-prev,
.pagination-next {
    color: var(--color-link);
    text-decoration: none;
    font-size: 0.9375rem;
}

.pagination-prev:hover,
.pagination-next:hover {
    color: var(--color-link-hover);
    text-decoration: underline;
}

.pagination-info {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--color-border);
    padding-top: var(--spacing-md);
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    text-align: center;
}

/* Intro text */
.intro {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text);
    margin: var(--spacing-sm) 0 var(--spacing-md) 0;
    font-weight: 400;
    max-width: 90%;
}

/* Description */
.description {
    color: var(--color-text-secondary);
    font-size: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    html {
        font-size: 16px;
    }

    body {
        padding: var(--spacing-sm);
    }

    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.375rem;
    }

    .post-nav {
        flex-direction: column;
    }

    .post-nav .next {
        text-align: left;
    }

    .pagination {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .pagination-prev,
    .pagination-next {
        width: 100%;
    }

    .pagination-info {
        order: -1;
    }
}