/* Blog Theme - Skyblue Borders, Clean Typography */

:root {
  --skyblue: #87ceeb;
  --dark-skyblue: #4a90a4;
  --white: #ffffff;
  --black: #000000;
  --light-gray: #f5f5f5;
  --border-width: 3px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--black);
  background-color: var(--white);
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  color: var(--black);
  font-weight: 600;
}

h1 {
  font-size: 2.5em;
  border-bottom: var(--border-width) solid var(--skyblue);
  padding-bottom: 0.3em;
}

h2 {
  font-size: 2em;
  border-left: var(--border-width) solid var(--skyblue);
  padding-left: 15px;
}

h3 {
  font-size: 1.5em;
  color: var(--dark-skyblue);
}

/* Paragraphs and Text */
p {
  margin-bottom: 1em;
}

a {
  color: var(--dark-skyblue);
  text-decoration: none;
  border-bottom: 1px solid var(--skyblue);
  transition: color 0.2s;
}

a:hover {
  color: var(--skyblue);
}

/* Code and Syntax Highlighting */
code {
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 0.9em;
  background-color: var(--light-gray);
  padding: 2px 6px;
  border-radius: 3px;
}

pre {
  background-color: var(--light-gray);
  border-left: var(--border-width) solid var(--skyblue);
  padding: 15px;
  overflow-x: auto;
  margin: 1.5em 0;
  border-radius: 4px;
}

pre code {
  background-color: transparent;
  padding: 0;
  color: var(--black);
}

/* Blockquotes */
blockquote {
  border-left: var(--border-width) solid var(--skyblue);
  padding-left: 20px;
  margin-left: 0;
  margin-bottom: 1em;
  font-style: italic;
  color: #555;
}

/* Lists */
ul, ol {
  margin-left: 2em;
  margin-bottom: 1em;
}

li {
  margin-bottom: 0.5em;
}

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

th {
  background-color: var(--skyblue);
  color: var(--white);
  padding: 12px;
  text-align: left;
  font-weight: 600;
  border: 1px solid var(--dark-skyblue);
}

td {
  padding: 10px 12px;
  border: 1px solid var(--skyblue);
}

tr:nth-child(even) {
  background-color: var(--light-gray);
}

/* Horizontal Rule */
hr {
  border: none;
  border-top: var(--border-width) solid var(--skyblue);
  margin: 2em 0;
}

/* Images */
img {
  max-width: 100%;
  height: auto;
  border: var(--border-width) solid var(--skyblue);
  border-radius: 4px;
  margin: 1em 0;
}

/* Strong and Emphasis */
strong {
  font-weight: 600;
}

em {
  font-style: italic;
}

/* Responsive Design */
@media (max-width: 768px) {
  body {
    padding: 20px 15px;
  }

  h1 {
    font-size: 2em;
  }

  h2 {
    font-size: 1.5em;
  }
}