/* Reset and base styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  color: #333;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 20px;
  background-color: #f9f9f9;
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 20px;
  margin-bottom: 40px;
  border-bottom: 2px solid #eaeaea;
}

header h1 {
  font-size: 2rem;
  font-weight: 700;
  color: #222;
}

/* Navigation */
nav ul {
  display: flex;
  list-style: none;
  gap: 30px;
}

nav a {
  color: #555;
  text-decoration: none;
  font-weight: 500;
  font-size: 1.1rem;
  padding: 5px 0;
  position: relative;
  transition: color 0.2s;
}

nav a:hover {
  color: #222;
}

nav a.active {
  color: #222;
  font-weight: 600;
}

nav a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: #222;
}

/* Main content */
main {
  min-height: 60vh;
  padding: 20px 0;
}

main h1, main h2, main h3 {
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  color: #222;
}

main p {
  margin-bottom: 1em;
}

main ul, main ol {
  margin-left: 2em;
  margin-bottom: 1em;
}

main code {
  background-color: #f0f0f0;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
  font-size: 0.9em;
}

main pre {
  background-color: #f5f5f5;
  padding: 1em;
  border-radius: 8px;
  overflow-x: auto;
  margin: 1.5em 0;
}

main blockquote {
  border-left: 4px solid #ddd;
  padding-left: 1em;
  margin-left: 0;
  color: #666;
  font-style: italic;
}

/* Footer */
footer {
  margin-top: 60px;
  padding-top: 20px;
  border-top: 2px solid #eaeaea;
  color: #777;
  text-align: center;
  font-size: 0.9rem;
}

/* Links */
a {
  color: #2563eb;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Blog post list */
.post-list {
  list-style: none;
  margin-top: 2em;
}

.post-list li {
  margin-bottom: 2em;
  padding-bottom: 2em;
  border-bottom: 1px solid #eee;
}

.post-list li:last-child {
  border-bottom: none;
}

.post-list h2 {
  margin-top: 0;
  font-size: 1.5rem;
}

.post-list .date {
  color: #777;
  font-size: 0.9rem;
  margin-top: 0.5em;
}

/* Responsive */
@media (max-width: 768px) {
  body {
    padding: 20px 15px;
  }
  
  header {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
  
  nav ul {
    flex-direction: column;
    gap: 15px;
  }
  
  nav a {
    font-size: 1rem;
  }
}