/* TypeScript for JavaScript Developers - Stylesheet */

:root {
  --primary-color: #3178c6;
  --text-color: #333;
  --bg-color: #fff;
  --code-bg: #f5f5f5;
  --border-color: #ddd;
  --link-color: #3178c6;
  --link-hover: #235a97;
}

* {
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background: var(--bg-color);
  margin: 0;
  padding: 0;
}

.wrapper {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
  background: var(--bg-color);
}

.site-title {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
  text-decoration: none;
}

.site-title:hover {
  color: var(--link-hover);
}

.site-nav {
  float: right;
  margin-top: 0.5rem;
}

.site-nav a {
  margin-left: 1.5rem;
  color: var(--text-color);
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--primary-color);
}

/* Content */
.page-content {
  padding: 2rem 0;
  min-height: calc(100vh - 200px);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-weight: 600;
  line-height: 1.3;
}

h1 {
  font-size: 2.5rem;
  color: var(--primary-color);
  border-bottom: 2px solid var(--primary-color);
  padding-bottom: 0.5rem;
}

h2 {
  font-size: 2rem;
  margin-top: 3rem;
}

h3 {
  font-size: 1.5rem;
}

p {
  margin: 1rem 0;
}

a {
  color: var(--link-color);
  text-decoration: none;
}

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

/* Code */
code {
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 0.9em;
  background: var(--code-bg);
  padding: 0.2em 0.4em;
  border-radius: 3px;
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  padding: 1rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}

pre code {
  background: none;
  padding: 0;
  font-size: 0.9em;
}

/* Chapter Content */
.chapter-header {
  margin-bottom: 2rem;
}

.chapter-number {
  color: #666;
  font-size: 0.9rem;
  margin: 0;
}

.chapter-content {
  max-width: 800px;
}

.chapter-content img {
  max-width: 100%;
  height: auto;
}

.chapter-content blockquote {
  border-left: 4px solid var(--primary-color);
  padding-left: 1rem;
  margin-left: 0;
  color: #666;
  font-style: italic;
}

/* Chapter Navigation */
.chapter-navigation {
  display: flex;
  justify-content: space-between;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.chapter-navigation a {
  padding: 0.5rem 1rem;
  background: var(--primary-color);
  color: white;
  border-radius: 5px;
  text-decoration: none;
}

.chapter-navigation a:hover {
  background: var(--link-hover);
}

.chapter-navigation .next {
  margin-left: auto;
}

/* Chapter List */
.chapter-list {
  list-style: none;
  padding: 0;
}

.chapter-list li {
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 5px;
  transition: all 0.2s;
}

.chapter-list li:hover {
  border-color: var(--primary-color);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.chapter-list a {
  font-size: 1.2rem;
  font-weight: 600;
}

.chapter-list p {
  margin: 0.5rem 0 0 0;
  color: #666;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-color);
  padding: 2rem 0;
  text-align: center;
  color: #666;
  font-size: 0.9rem;
}

.site-footer p {
  margin: 0.5rem 0;
}

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

th, td {
  border: 1px solid var(--border-color);
  padding: 0.5rem;
  text-align: left;
}

th {
  background: var(--code-bg);
  font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
  .site-nav {
    float: none;
    margin-top: 1rem;
  }

  .site-nav a {
    display: block;
    margin: 0.5rem 0;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .chapter-navigation {
    flex-direction: column;
    gap: 1rem;
  }

  .chapter-navigation .next {
    margin-left: 0;
  }
}