:root {
  --slate: #0f172a;
  --slate2: #1e293b;
  --orange: #e08010;
  --blue: #2563eb;
  --ink: #1f2937;
  --muted: #64748b;
  --bg: #f8fafc;
  --border: #e2e8f0;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Inter",
    "Helvetica Neue", Arial, sans-serif; line-height: 1.65; font-size: 16px;
}
.container { max-width: 920px; margin: 0 auto; padding: 32px 24px 80px; }
header.topbar {
  background: var(--slate); color: #fff; padding: 18px 24px;
}
header.topbar a { color: #fff; text-decoration: none; font-weight: 600; }
header.topbar .badge {
  background: var(--orange); color: #fff; padding: 2px 10px; border-radius: 999px;
  font-size: 12px; font-weight: 700; margin-left: 10px; vertical-align: middle;
}
h1 { font-size: 2em; color: var(--slate); border-bottom: 3px solid var(--orange);
  padding-bottom: 10px; margin-top: 0.4em; }
h2 { font-size: 1.45em; color: var(--slate); margin-top: 2em;
  border-left: 4px solid var(--orange); padding-left: 12px; }
h3 { font-size: 1.15em; color: var(--slate2); margin-top: 1.6em; }
a { color: var(--blue); }
code {
  background: #eef2f7; border: 1px solid var(--border); border-radius: 4px;
  padding: 1px 6px; font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.88em; color: #b45309;
}
pre {
  background: var(--slate); color: #e2e8f0; padding: 16px; border-radius: 8px;
  overflow-x: auto; font-size: 0.85em; line-height: 1.5;
}
pre code { background: none; border: none; color: inherit; padding: 0; }
table { border-collapse: collapse; width: 100%; margin: 1.2em 0; font-size: 0.92em; }
th, td { border: 1px solid var(--border); padding: 8px 12px; text-align: left;
  vertical-align: top; }
th { background: var(--slate); color: #fff; font-weight: 600; }
tr:nth-child(even) td { background: #fff; }
tr:nth-child(odd) td { background: #fbfcfe; }
blockquote {
  border-left: 4px solid var(--orange); margin: 1.2em 0; padding: 8px 16px;
  background: #fff7ed; color: #7c2d12; border-radius: 0 6px 6px 0;
}
blockquote p { margin: 0.4em 0; }
hr { border: none; border-top: 1px solid var(--border); margin: 2em 0; }
img { max-width: 100%; border: 1px solid var(--border); border-radius: 8px; }
.toc { background: #fff; border: 1px solid var(--border); border-radius: 8px;
  padding: 16px 20px; margin: 1.2em 0; }
.toc a { text-decoration: none; }
.doc-list { list-style: none; padding: 0; }
.doc-list li { margin: 8px 0; }
.doc-list a { font-size: 1.05em; font-weight: 500; }