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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  background: #ffffff;
  min-height: 100vh;
  padding: 20px;
  color: #333;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

header {
  text-align: center;
  margin-bottom: 30px;
  padding: 20px 0;
}

header h1 {
  font-size: 2.5em;
  margin-bottom: 0;
  color: #333;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.demo-section {
  margin-bottom: 30px;
}

.demo-section h2 {
  margin-bottom: 10px;
  color: #555;
  font-size: 1.4em;
  font-weight: 500;
}

#editor {
  margin-bottom: 20px;
}

.installation-section {
  margin-top: 60px;
  margin-bottom: 40px;
  padding: 40px 30px;
  background-color: #fafafa;
  border-radius: 12px;
  border: 1px solid #e5e5e5;
}

.installation-section h2 {
  color: #000;
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.installation-section > p {
  color: #666;
  font-size: 16px;
  line-height: 1.6;
  margin-bottom: 30px;
  font-weight: 400;
}

/* Tab Container */
.tab-container {
  background-color: #ffffff;
  border-radius: 12px;
  border: 1px solid #e0e0e0;
  overflow: hidden;
  margin-bottom: 30px;
}

/* Tab Headers */
.tab-headers {
  display: flex;
  border-bottom: 1px solid #e0e0e0;
  background-color: #fafafa;
}

.tab-btn {
  padding: 10px 20px;
  background: transparent;
  color: #666;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
  outline: none;
}

.tab-btn:hover {
  color: #333;
}

.tab-btn.active {
  background: #2d2d2d;
  color: #fff;
  border-bottom: 2px solid #0066ff;
}

/* Tab Content */
.tab-content {
  padding: 24px;
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
}

/* CDN Sub-tabs */
.cdn-subtabs {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  border-bottom: 1px solid #e0e0e0;
  padding-bottom: 8px;
}

.cdn-subtab-btn {
  padding: 6px 16px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  color: #666;
  transition: all 0.2s;
}

.cdn-subtab-btn.active {
  background: #f0f0f0;
  border: 1px solid #d0d0d0;
  color: #000;
}

.cdn-tab-pane {
  display: none;
}

.cdn-tab-pane.active {
  display: block;
}

/* Usage Tab Headers */
.usage-tab-headers {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #e0e0e0;
  background-color: #fafafa;
  padding: 0 20px;
}

.usage-pane {
  display: none;
}

.usage-pane.active {
  display: block;
}

.code-block {
  position: relative;
  background-color: #1e1e1e;
  border-radius: 8px;
  padding: 16px 20px;
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: 1px solid #333;
}

.code-block code {
  color: #d4d4d4;
  font-size: 14px;
  font-family: Monaco, "Courier New", monospace;
  font-weight: 400;
  word-break: break-all;
}

.copy-btn {
  background: #2d2d2d;
  border: 1px solid #444;
  border-radius: 6px;
  padding: 6px 12px;
  color: #d4d4d4;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 500;
  min-width: 70px;
  margin-left: 12px;
  flex-shrink: 0;
}

.copy-btn:hover {
  background: #383838;
  border-color: #555;
}

/* Usage Pre and Code */
.usage-pane pre {
  background-color: #1e1e1e;
  border-radius: 6px;
  padding: 16px;
  overflow: auto;
  margin: 0;
}

.usage-pane code {
  color: #d4d4d4;
  font-size: 13px;
  font-family: Monaco, "Courier New", monospace;
  line-height: 1.6;
}

footer {
  margin-top: 80px;
  padding: 50px 20px;
  background-color: #ffffff;
  border-top: 1px solid #eaeaea;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 40px;
}

.footer-brand {
  flex: 1;
  min-width: 200px;
}

.footer-brand h3 {
  color: #000;
  margin-bottom: 8px;
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.footer-brand p {
  color: #666;
  font-size: 14px;
  line-height: 1.5;
  font-weight: 400;
  margin: 0;
}

.footer-links h4 {
  color: #000;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  color: #666;
  text-decoration: none;
  font-size: 14px;
  font-weight: 400;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #000;
}

.footer-bottom {
  max-width: 1200px;
  margin: 40px auto 0;
  padding-top: 30px;
  border-top: 1px solid #eaeaea;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-bottom p {
  color: #999;
  font-size: 13px;
  margin: 0;
  font-weight: 400;
}

.footer-bottom a {
  color: #666;
  text-decoration: none;
  font-weight: 400;
  transition: color 0.2s;
}

.footer-bottom a:hover {
  color: #000;
}

@media (max-width: 768px) {
  header h1 {
    font-size: 2em;
  }

  .installation-section {
    padding: 30px 20px;
  }

  .installation-section h2 {
    font-size: 24px;
  }

  .footer-content {
    flex-direction: column;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}