body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  background: #ffffff;
  color: #000;
}

* {
  box-sizing: border-box;
}

/* Wrapper */

#wrapper {
  max-width: 1000px;
  margin: 40px auto;
  padding: 0 20px;
}

/* Header */

#header {
  margin-bottom: 30px;
}

#banner img {
  width: 100%;
  height: auto;
  display: block;
}

/* Flexible Two Column Layout */

#content {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

#main {
  flex: 1;
  min-width: 0;
}

#sidebar {
  width: 200px;
  flex-shrink: 0;
  font-size: 14px;
}

#sidebar ul {
  list-style: none;
  padding-left: 0;
  margin-left: 0;
}

/* Stack on small screens */

@media (max-width: 800px) {
  #content {
    flex-direction: column;
  }

  #sidebar {
    width: 100%;
  }
}

/* Posts */

.post {
  margin-bottom: 10px;
}

.post-title {
  font-size: 22px;
  margin-bottom: 5px;
}

.post-date {
  font-size: 13px;
  color: #666;
  margin-bottom: 15px;
}

p {
  margin-bottom: 10px;
  overflow-wrap: break-word;
}

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

pre,
code {
  max-width: 100%;
  overflow-x: auto;
}

.post-nav {
  margin-top: 30px;
  padding-top: 15px;
  border-top: 1px solid #ccc;
  font-size: 14px;
}

#footer {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #ccc;
  font-size: 13px;
  color: #666;
}