:root {
  --text-color: #333;
  --border-color: #ddd;
  --base-font-size: 1rem;
}

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

/* Font, background and --bg-color / --accent-color come from /assets/css/site.css */
body {
  line-height: 1.4;
  color: var(--text-color);
  font-size: var(--base-font-size);
}

.container {
  display: flex;
  min-height: 100vh;
}

/* Mobile-first approach - on small screens, show content before sidebar */
@media (max-width: 768px) {
  body {
    width: 100%;
    overflow-x: hidden;
  }
  
  .container {
    flex-direction: column-reverse;
    padding: 0;
  }
  
  .sidebar {
    width: 100%;
    border-right: none;
    border-top: 1px solid var(--border-color);
    padding: 1rem;
  }
  
  .content {
    width: 100%;
    padding: 1rem;
    margin: 0;
  }
  
  .sidebar h2 {
    text-align: center;
    margin-bottom: 0.5rem;
  }
  
  #post-list {
    margin: 0;
    padding: 0;
    list-style: none;
    width: 100%;
  }
  
  #post-list li {
    display: block;
    width: 100%;
    margin-bottom: 0.5rem;
    padding: 0;
  }
  
  .sidebar nav a {
    display: block;
    width: 100%;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
  }
}

/* Normal layout for larger screens */
@media (min-width: 769px) {
  .container {
    max-width: 1100px;
    margin: 0 auto;
  }
  
  .sidebar {
    width: 250px;
    flex-shrink: 0;
  }
  
  .content {
    flex: 1;
    max-width: 650px;
    margin: 0 auto;
  }
}

.sidebar {
  padding: 2rem 1rem;
  border-right: 1px solid var(--border-color);
}

.sidebar h2 {
  margin-bottom: 1rem;
}

.sidebar nav {
  margin-bottom: 2rem;
}

#post-list {
  list-style-type: none;
  padding: 0;
}

.sidebar nav a {
  display: block;
  padding: 0.25rem 0;
  color: var(--text-color);
  text-decoration: none;
  border-bottom: 1px solid var(--border-color);
}

.sidebar nav a:hover, .sidebar nav a.active {
  color: var(--accent-color);
  text-decoration: underline;
}

.content {
  flex: 1;
  padding: 2rem;
  max-width: 650px;
  margin: 0 auto;
}

/* Responsive media */
.content img,
.content video {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 1rem 0;
}

h1 {
  font-size: calc(var(--base-font-size) * 1.5);
  font-weight: bold;
  margin: 1rem 0 0.5rem;
  line-height: 1.3;
}

h2 {
  font-size: var(--base-font-size);
  font-weight: bold;
  margin: 1rem 0 0.5rem;
  line-height: 1.3;
}

h3, h4, h5, h6 {
  margin: 1rem 0 0.5rem;
  line-height: 1.3;
}

p, ul, ol {
  margin-bottom: 1rem;
  font-size: var(--base-font-size);
}

/* Add proper nested list styling */
ul {
  padding-left: 1.5rem;
}

ul ul, ol ul, ul ol, ol ol {
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
}

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

a:hover {
  text-decoration: underline;
}

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

.nav-button {
  padding: 0.5rem 1rem;
  background-color: var(--bg-color);
  border-radius: 4px;
}

.nav-button:hover {
  background-color: var(--accent-color);
  color: white;
  text-decoration: none;
}