:root {
  --bg-color: #fffff8;
  --text-color: #111111;
  --link-color: #0066cc;
  --link-hover: #004499;
  --border-color: #e0e0e0;
  --muted-color: #666666;
  --code-bg: #f5f5f5;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-color: #111111;
    --text-color: #fffff8;
    --link-color: #6db3f2;
    --link-hover: #9dcbf5;
    --border-color: #333333;
    --muted-color: #999999;
    --code-bg: #2d2d2d;
  }
}

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

html {
  font-size: 18px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-color);
  max-width: 650px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

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

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

h1, h2, h3, h4 {
  line-height: 1.3;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

h1 {
  font-size: 1.8rem;
}

h2 {
  font-size: 1.4rem;
}

h3 {
  font-size: 1.2rem;
}

p {
  margin-bottom: 1rem;
}

ul, ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
}

li > ul, li > ol {
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}

header {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

header h1 {
  margin: 0;
}

header h1 a {
  color: var(--text-color);
}

header h1 a:hover {
  text-decoration: none;
}

.intro {
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.posts {
  list-style: none;
  padding-left: 0;
}

.posts li {
  margin-bottom: 1.5rem;
}

.post-date {
  color: var(--muted-color);
  font-size: 0.9rem;
  display: block;
  margin-bottom: 0.25rem;
}

.posts h2 {
  margin-top: 0;
}

article {
  margin-bottom: 2rem;
}

article header {
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 1rem;
}

article header h1 {
  margin-bottom: 0.25rem;
}

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

figure {
  margin: 1.5rem 0;
}

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

figcaption {
  margin-top: 0.5rem;
  font-size: 0.85rem;
  color: var(--muted-color);
}

pre, code {
  font-family: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, monospace;
  font-size: 0.9rem;
  background-color: var(--code-bg);
  border-radius: 4px;
}

code {
  padding: 0.2em 0.4em;
}

pre {
  padding: 1rem;
  overflow-x: auto;
  margin-bottom: 1rem;
}

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

blockquote {
  border-left: 3px solid var(--border-color);
  padding-left: 1rem;
  margin-left: 0;
  margin-bottom: 1rem;
  color: var(--muted-color);
}

hr {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 2rem 0;
}

.pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.pagination a, .pagination span {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
}

.pagination .current {
  background-color: var(--link-color);
  color: var(--bg-color);
  border-color: var(--link-color);
}

.post-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.post-nav a {
  max-width: 45%;
}

.post-nav .prev::before {
  content: "\2190 ";
}

.post-nav .next::after {
  content: " \2192";
}

footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  color: var(--muted-color);
  font-size: 0.9rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
}

th, td {
  text-align: left;
  padding: 1rem 1rem 1rem 0;
}

th {
  font-weight: 600;
  border-bottom: 2px solid var(--border-color);
}

td {
  border-bottom: 1px solid var(--border-color);
}