:root {
  --text: #333;
  --text-light: #666;
  --bg: #fff;
  --link: #2a7ae2;
  --link-hover: #1756a9;
  --border: #e8e8e8;
  --code-bg: #f6f8fa;
  --tag-bg: #e8f0fe;
  --tag-text: #1a56db;
  --max-width: 800px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  font-size: 18px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

.wrapper {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

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

/* Header */

.site-header {
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
}

.site-header .wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
}

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

.site-nav a {
  margin-left: 1.5rem;
  color: var(--text-light);
}

.site-nav a:hover {
  color: var(--text);
}

.site-nav .rss-link {
  color: #f26522;
}

.site-nav .rss-link:hover {
  color: #e05a1b;
}

/* Main content */

.site-content {
  padding: 2rem 0;
  min-height: calc(100vh - 8rem);
}

/* Post list (home) */

.post-summary {
  margin-bottom: 2.5rem;
}

.post-summary h2 {
  margin-bottom: 0.25rem;
}

.post-summary h2 a {
  color: var(--text);
}

.post-summary h2 a:hover {
  color: var(--link);
}

.post-meta {
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 0.5rem;
}

.post-excerpt {
  color: var(--text-light);
}

/* Post */

.post-header {
  margin-bottom: 2rem;
}

.post-title {
  font-size: 2rem;
  line-height: 1.3;
  margin-bottom: 0.25rem;
}

.post-content {
  margin-bottom: 2rem;
}

.post-content h1, .site-content h1,
.post-content h2, .site-content h2,
.post-content h3, .site-content h3,
.post-content h4, .site-content h4 {
  margin-top: 1.5em;
  margin-bottom: 0.5em;
}

.post-content p, .site-content p {
  margin-bottom: 1em;
}

.post-content ul, .site-content ul,
.post-content ol, .site-content ol {
  margin-bottom: 1em;
  padding-left: 1.5em;
  list-style: none;
}

.post-content ul li, .site-content ul li {
  position: relative;
  padding-left: 0.5em;
  margin-bottom: 0.4em;
}

.post-content ul li::before, .site-content ul li::before {
  content: "\2192";
  position: absolute;
  left: -1.5em;
  color: var(--text-light);
}

.post-content ol li, .site-content ol li {
  margin-bottom: 0.4em;
}

.post-content blockquote, .site-content blockquote {
  border-left: 4px solid var(--border);
  padding-left: 1rem;
  color: var(--text-light);
  margin-bottom: 1em;
}

.post-content img, .site-content img {
  max-width: 100%;
  height: auto;
}

.profile-photo {
  width: 150px;
  border-radius: 50%;
  float: right;
  margin: 0 0 1rem 1.5rem;
}

/* Code */

.post-content code {
  background: var(--code-bg);
  padding: 0.15em 0.35em;
  border-radius: 3px;
  font-size: 0.9em;
}

.post-content pre {
  background: var(--code-bg);
  padding: 1rem;
  border-radius: 4px;
  overflow-x: auto;
  margin-bottom: 1em;
}

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

.highlight {
  background: var(--code-bg);
  border-radius: 4px;
  margin-bottom: 1em;
}

.highlight pre {
  margin-bottom: 0;
}

/* Tags */

.post-tags {
  margin-top: 0.5rem;
}

.tag {
  display: inline-block;
  background: var(--tag-bg);
  color: var(--tag-text);
  padding: 0.15em 0.6em;
  border-radius: 3px;
  font-size: 0.85rem;
  margin-right: 0.4rem;
  margin-bottom: 0.3rem;
}

.tag:hover {
  text-decoration: none;
  background: var(--tag-text);
  color: #fff;
}

.tag-count {
  font-size: 0.9rem;
  color: var(--text-light);
  font-weight: normal;
}

.tag-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.rss-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.rss-link {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  color: #f26522;
}

.rss-link:hover {
  color: #e05a1b;
  text-decoration: none;
}

.rss-link sub {
  font-size: 0.55rem;
  color: var(--text-light);
  line-height: 1;
}

.feed-icon {
  vertical-align: middle;
}

.tag-group {
  margin-bottom: 2rem;
}

/* Simple post lists (archive, tag pages) */

.post-list-simple {
  list-style: none;
  padding: 0;
}

.post-list-simple li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--border);
}

.post-list-simple time {
  font-size: 0.85rem;
  color: var(--text-light);
  white-space: nowrap;
  margin-left: 1rem;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  font-size: 0.85rem;
  color: var(--text-light);
}

/* Responsive */

@media (max-width: 600px) {
  body {
    font-size: 16px;
  }

  .site-header .wrapper {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav {
    margin-top: 0.5rem;
  }

  .site-nav a {
    margin-left: 0;
    margin-right: 1rem;
  }

  .post-list-simple li {
    flex-direction: column;
  }

  .post-list-simple time {
    margin-left: 0;
  }
}