*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #111;
  background: #fff;
  padding: 1rem 1rem 0;
  max-width: 48rem;
  margin: 0 auto;
}
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.3;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}
h1 {
  font-size: 1.75rem;
}
h2 {
  font-size: 1.35rem;
  border-bottom: 1px solid #ddd;
  padding-bottom: 0.25rem;
}
h3 {
  font-size: 1.1rem;
}
p {
  margin-bottom: 0.75rem;
}
a {
  color: #0044cc;
  text-decoration: underline;
}
a:hover {
  color: #002266;
}
ul, ol {
  margin: 0.5rem 0 0.75rem 1.5rem;
}
li {
  margin-bottom: 0.25rem;
}
blockquote {
  margin: 0.75rem 0;
  padding: 0.5rem 1rem;
  border-left: 3px solid #ccc;
  color: #444;
}
code {
  font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', Consolas, monospace;
  font-size: 0.85rem;
  background: #f0f0f0;
  padding: 0.1rem 0.3rem;
}
pre {
  background: #f0f0f0;
  padding: 0.75rem 1rem;
  overflow: auto;
  margin: 0.75rem 0;
  font-size: 0.82rem;
  line-height: 1.45;
}
pre code {
  background: none;
  padding: 0;
}
table {
  border-collapse: collapse;
  margin: 0.75rem 0;
  width: 100%;
  font-size: 0.9rem;
}
table th, td {
  border: 1px solid #ccc;
  padding: 0.35rem 0.5rem;
  text-align: left;
  vertical-align: top;
}
table th {
  background: #f5f5f5;
  font-weight: 600;
}
hr {
  border: none;
  border-top: 1px solid #ddd;
  margin: 1.5rem 0;
}
img {
  max-width: 100%;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 0;
  margin-bottom: 1rem;
  border-bottom: 1px solid #ddd;
}
.site-nav .logo {
  font-weight: 700;
  font-size: 1rem;
  color: #111;
  text-decoration: none;
  margin-right: auto;
}
.site-nav .nav-links {
  display: flex;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav .nav-links a {
  font-size: 0.88rem;
  color: #555;
  text-decoration: none;
  padding: 0.2rem 0.5rem;
}
.site-nav .nav-links a:hover {
  text-decoration: underline;
  color: #111;
}
.tag {
  font-size: 0.8rem;
  color: #555;
  background: #eee;
  padding: 0.1rem 0.4rem;
  text-decoration: none;
}
.tag:hover {
  background: #ddd;
}
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0.5rem 0;
}
.tag-item {
  font-size: 0.85rem;
  color: #0044cc;
  text-decoration: underline;
}
.tag-item:hover {
  color: #002266;
}
.hero {
  padding: 1.5rem 0;
  margin-bottom: 1rem;
  border-bottom: 1px solid #ddd;
}
.hero-inner {
  text-align: center;
}
.hero .hero-badge {
  font-size: 0.8rem;
  color: #666;
}
.hero h1 {
  font-size: 2rem;
  margin: 0.5rem 0;
}
.hero h1 .gradient {
  background: none;
  -webkit-background-clip: unset;
  -webkit-text-fill-color: unset;
  color: #111;
}
.hero-desc {
  font-size: 1rem;
  color: #444;
  max-width: 36rem;
  margin: 0 auto 1rem;
}
.hero-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
}
.hero .hero-stats {
  display: flex;
  gap: 2rem;
  justify-content: center;
  margin-top: 1rem;
}
.hero .hero-stats .stat {
  text-align: center;
}
.hero .hero-stats .stat .stat-num {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
}
.hero .hero-stats .stat .stat-label {
  font-size: 0.75rem;
  color: #666;
}
.btn {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  font-size: 0.88rem;
  text-decoration: none;
  border: 1px solid #888;
  color: #111;
  cursor: pointer;
}
.btn-primary {
  background: #111;
  color: #fff;
  border-color: #111;
}
.btn-primary:hover {
  background: #333;
}
.btn-secondary {
  background: #fff;
  color: #111;
}
.btn-secondary:hover {
  background: #eee;
}
.section {
  padding: 0.75rem 0;
}
.section-sm {
  padding: 0.5rem 0;
}
.section-title {
  margin: 1rem 0 0.75rem;
  text-align: center;
}
.section-title p {
  color: #555;
  font-size: 0.9rem;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
  gap: 0.75rem;
  margin: 0.5rem 0;
}
.feature-card {
  border: 1px solid #ddd;
  padding: 0.75rem;
}
.feature-card .feat-icon {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}
.feature-card h3 {
  margin: 0 0 0.25rem;
  font-size: 0.95rem;
}
.feature-card p {
  font-size: 0.85rem;
  color: #444;
  margin-bottom: 0.25rem;
}
.feature-card .feat-tag {
  font-size: 0.72rem;
  color: #888;
  text-transform: uppercase;
}
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
  gap: 0.75rem;
}
.showcase-card {
  border: 1px solid #ddd;
  padding: 0.75rem;
}
.showcase-card .showcase-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #888;
}
.showcase-card h3 {
  margin: 0.25rem 0;
  font-size: 1rem;
}
.showcase-card p {
  font-size: 0.85rem;
  color: #444;
  margin-bottom: 0.35rem;
}
.showcase-card a::after {
  content: " →";
}
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
  gap: 0.75rem;
}
.blog-card {
  border: 1px solid #ddd;
  padding: 0.75rem;
}
.blog-card .post-meta {
  font-size: 0.8rem;
  color: #888;
  margin-bottom: 0.25rem;
}
.blog-card h2 {
  border: none;
  margin: 0 0 0.35rem;
  font-size: 1rem;
}
.blog-card h2 a {
  color: #111;
  text-decoration: none;
}
.blog-card h2 a:hover {
  text-decoration: underline;
}
.blog-card p {
  font-size: 0.85rem;
  color: #444;
  margin-bottom: 0.35rem;
}
.blog-card .tags {
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
}
.archive-list {
  list-style: none;
  padding: 0;
}
.archive-list li {
  padding: 0.25rem 0;
  border-bottom: 1px solid #eee;
}
.archive-list li a {
  margin-left: 0.5rem;
}
.post-layout {
  max-width: 36rem;
}
.post-header {
  margin-bottom: 1rem;
}
.post-content {
  line-height: 1.7;
}
.post-content h2:first-child {
  margin-top: 0;
}
.page-header {
  text-align: center;
  padding: 1rem 0;
}
.page-header h1 {
  font-size: 2rem;
}
.page-header p {
  color: #555;
}
.file-types {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}
.file-type-card {
  border: 1px solid #ddd;
  padding: 0.5rem;
  text-align: center;
}
.file-type-card .file-ext {
  display: block;
  font-family: monospace;
  font-size: 0.95rem;
  font-weight: 700;
}
.file-type-card .file-desc {
  font-size: 0.78rem;
  color: #666;
}
.demo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
  gap: 0.75rem;
}
.demo-card {
  border: 1px solid #ddd;
  padding: 0.75rem;
}
.demo-card .demo-ext {
  font-family: monospace;
  font-size: 0.85rem;
  font-weight: 700;
}
.demo-card h3 {
  margin: 0.25rem 0;
}
.demo-card p {
  font-size: 0.85rem;
  color: #444;
}
.demo-card a::after {
  content: " →";
}
.callout {
  border-left: 3px solid #ccc;
  padding: 0.5rem 0.75rem;
  margin: 0.75rem 0;
  font-size: 0.9rem;
  background: #f8f8f8;
}
.site-footer {
  margin-top: 2rem;
  padding-top: 0.75rem;
  border-top: 1px solid #ddd;
  font-size: 0.82rem;
  color: #666;
}
.site-footer p {
  margin-bottom: 0.35rem;
}
.site-footer a {
  color: #555;
  font-size: 0.82rem;
}
.text-muted {
  color: #888;
}
.empty-state {
  text-align: center;
  color: #888;
  padding: 2rem 0;
}