:root {
  --bg-primary: #000; --bg-secondary: #1c1c1e; --separator: rgba(84,84,88,0.65);
  --label-primary: #fff; --label-secondary: rgba(235,235,245,0.6);
  --label-tertiary: rgba(235,235,245,0.3); --accent: #8b5cf6; --accent-hover: #7c3aed;
  --green: #30d158; --tint: rgba(139,92,246,0.15);
}
@media (prefers-color-scheme: light) {
  :root {
    --bg-primary: #f2f2f7; --bg-secondary: #fff; --separator: rgba(60,60,67,0.29);
    --label-primary: #000; --label-secondary: rgba(60,60,67,0.6);
    --label-tertiary: rgba(60,60,67,0.3); --accent: #7c3aed; --tint: rgba(124,58,237,0.08);
  }
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', system-ui, sans-serif;
  background: var(--bg-primary); color: var(--label-primary);
  line-height: 1.6; -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 760px; margin: 0 auto; padding: 0 24px; }
header {
  padding: 16px 0; border-bottom: 0.5px solid var(--separator);
  display: flex; justify-content: space-between; align-items: center;
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
}
header .logo { font-size: 20px; font-weight: 700; color: var(--accent); letter-spacing: -0.3px; }
header nav a { margin-left: 24px; color: var(--label-secondary); font-size: 15px; font-weight: 500; }
header nav a:hover { color: var(--label-primary); text-decoration: none; }
.content { padding: 56px 0 64px; }
.content h1 {
  font-size: clamp(34px, 5vw, 44px); font-weight: 700;
  letter-spacing: -0.8px; line-height: 1.15; margin-bottom: 8px;
}
.content .lead { font-size: 17px; color: var(--label-secondary); margin-bottom: 32px; line-height: 1.6; }
.content .meta {
  font-size: 13px; color: var(--label-tertiary);
  margin-bottom: 32px; padding-bottom: 16px;
  border-bottom: 0.5px solid var(--separator);
}
.content h2 {
  font-size: 22px; font-weight: 700; letter-spacing: -0.3px;
  margin-top: 40px; margin-bottom: 12px;
}
.content h3 {
  font-size: 17px; font-weight: 600;
  margin-top: 24px; margin-bottom: 8px;
}
.content p { font-size: 15px; color: var(--label-secondary); margin-bottom: 14px; }
.content ul, .content ol { margin: 0 0 14px 22px; }
.content li { font-size: 15px; color: var(--label-secondary); margin-bottom: 6px; line-height: 1.6; }
.content code {
  font-family: 'SF Mono', SFMono-Regular, Menlo, monospace;
  font-size: 13px; background: var(--bg-secondary);
  padding: 2px 6px; border-radius: 4px; color: var(--label-primary);
  border: 0.5px solid var(--separator);
}
.content table {
  width: 100%; border-collapse: collapse; margin: 14px 0;
  font-size: 14px; background: var(--bg-secondary);
  border: 0.5px solid var(--separator); border-radius: 12px; overflow: hidden;
}
.content th, .content td {
  padding: 12px 16px; text-align: left;
  border-bottom: 0.5px solid var(--separator); color: var(--label-secondary);
}
.content tr:last-child td { border-bottom: none; }
.content th { color: var(--label-primary); font-weight: 600; font-size: 13px; }
.callout {
  background: var(--tint); border: 0.5px solid rgba(139,92,246,0.3);
  border-radius: 12px; padding: 16px 20px; margin: 20px 0;
  font-size: 14px; color: var(--label-primary);
}
.callout strong { color: var(--accent); }
footer {
  padding: 32px 0; border-top: 0.5px solid var(--separator);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 12px; color: var(--label-tertiary);
}
footer a { color: var(--label-tertiary); }
footer a:hover { color: var(--accent); }
@media (max-width: 560px) {
  header nav a { margin-left: 12px; font-size: 13px; }
  .content { padding: 32px 0; }
}