:root {
  --background-color: #1a1a1a;
  --text-color: #e0e0e0;
  --border-color: #333333;
  --date-color: #aaaaaa;
  --link-color: #6699ff;
  --link-hover-color: #99ccff;
  --heading-color: #f0f0f0;
  --body-width: 900px;
  --sidenote-width: 200px;
  --sidenote-bg: rgba(40, 40, 40, 0.6);
  --heading-border: #444444;
  --code-bg: #2d2d2d;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background-color: #ffffff;
    --text-color: #333333;
    --border-color: #eeeeee;
    --date-color: #666666;
    --link-color: #0066cc;
    --link-hover-color: #004080;
    --heading-color: #222222;
    --sidenote-bg: rgba(240, 240, 240, 0.8);
    --heading-border: #dddddd;
    --code-bg: #f5f5f5;
  }
}

body {
  font-family: 'Lato', 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.7;
  max-width: var(--body-width);
  margin: 0 auto;
  padding: 30px;
  background-color: var(--background-color);
  color: var(--text-color);
  transition: background-color 0.3s ease, color 0.3s ease;
  counter-reset: sidenote-counter;
  font-size: 18px;
  letter-spacing: 0.01em;
}

.fp-columns-container {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.fp-columns-container>.left {
  flex: 1;
  min-width: 300px;
}

.fp-columns-container>.right {
  flex: 1;
  min-width: 250px;
  padding-left: 1rem;
  border-left: 1px solid #ccc;
}

@media (max-width: 768px) {
  .container {
    flex-direction: column;
  }

  .posts-column {
    border-left: none;
    border-top: 1px solid #ccc;
    padding-left: 0;
    padding-top: 1rem;
  }

  @media (prefers-color-scheme: dark) {
    .posts-column {
      border-top-color: #444;
    }
  }
}

/* Improved heading styles */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: 'Playfair Display', Georgia, serif;
  color: var(--heading-color);
  line-height: 1.3;
  margin-top: 2em;
  margin-bottom: 0.7em;
  font-weight: 600;
}

h1 {
  font-size: 2.2em;
  border-bottom: 2px solid var(--heading-border);
  padding-bottom: 0.3em;
  margin-top: 0.5em;
}

h2 {
  font-size: 1.8em;
  border-bottom: 1px solid var(--heading-border);
  padding-bottom: 0.2em;
}

h3 {
  font-size: 1.4em;
}

/* Content with sidenotes container */
.content-with-sidenotes {
  position: relative;
  max-width: calc(var(--body-width) - 100px);
  margin: 0 auto;
}

/* Improved sidenote styling */
.sidenote {
  float: right;
  clear: right;
  margin-right: calc(-1 * (var(--sidenote-width) + 2rem));
  width: var(--sidenote-width);
  margin-top: 0.3em;
  margin-bottom: 1em;
  font-size: 85%;
  line-height: 1.5;
  vertical-align: baseline;
  position: relative;
  padding: 0.8em;
  border-radius: 4px;
  background-color: var(--sidenote-bg);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.sidenote-number {
  counter-increment: sidenote-counter;
  display: inline-block;
  vertical-align: super;
  font-size: 0.7rem;
  margin-left: 0.2rem;
  color: var(--link-color);
  font-weight: bold;
}

.sidenote-number::after,
.sidenote::before {
  content: counter(sidenote-counter);
  position: relative;
  display: inline-block;
  margin-right: 0.4rem;
  font-weight: bold;
  color: var(--link-color);
}

/* Link styling */
a {
  color: var(--link-color);
  text-decoration: none;
  transition: color 0.2s ease;
  border-bottom: 1px dotted var(--link-color);
}

a:hover {
  color: var(--link-hover-color);
  border-bottom: 1px solid var(--link-hover-color);
  text-decoration: none;
}

/* Post list styling */
.posts-list {
  /*list-style: none;*/
  padding: 0;
  margin-left: 2rem;
  margin-bottom: 2rem;
}

.posts-list li {
  margin-bottom: 1em;
  padding: 0.8em;
  border-radius: 4px;
  transition: background-color 0.2s ease;
}

.posts-list li:hover {
  background-color: var(--sidenote-bg);
}

.post-list {
  list-style: none;
  padding: 0;
  margin: 2em 0;
}

.post-item {
  margin-bottom: 1.5em;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1em;
  transition: transform 0.2s ease;
}

.post-item:hover {
  transform: translateX(5px);
}

.post-title {
  font-size: 1.5em;
  margin-bottom: 0.5em;
  font-weight: 600;
}

.post-date {
  color: var(--date-color);
  font-size: 0.9em;
  font-style: italic;
  margin-bottom: 0.7em;
}

/* Navigation and content */
.back-link {
  display: inline-block;
  margin: 1.5em 0;
  padding: 0.4em 0.8em;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 0.9em;
}

.back-link:hover {
  background-color: var(--sidenote-bg);
}

.post-content-body {
  margin-top: 2em;
  line-height: 1.8;
}

/* Code blocks */
pre,
code {
  font-family: 'Consolas', 'Monaco', monospace;
  background-color: var(--code-bg);
  border-radius: 3px;
}

code {
  padding: 0.2em 0.4em;
  font-size: 0.9em;
}

pre {
  padding: 1em;
  overflow-x: auto;
  line-height: 1.5;
  margin: 1.5em 0;
}

pre code {
  padding: 0;
  background-color: transparent;
}

/* Blockquotes */
blockquote {
  border-left: 4px solid var(--link-color);
  margin-left: 0;
  padding-left: 1.5em;
  font-style: italic;
  color: var(--date-color);
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
}

th,
td {
  padding: 0.5em;
  border: 1px solid var(--border-color);
}

th {
  background-color: var(--sidenote-bg);
}

/* Images */
img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
}

/* Social-full images */
img.social-full {
  display: block;
  max-width: 85%;
  margin: 2em auto;
  border: 1px solid var(--border-color);
  padding: 8px;
  background-color: var(--background-color);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s ease;
}

img.figure {
  display: block;
  max-width: 85%;
  margin: 2em auto;
  padding: 8px;
  background-color: var(--background-color);
}