@import url("https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap");

:root {
  /* docs.ragas.io extra/ragas-modern.css */
  --bg: #ffffff;
  --surface: #ffffff;
  --text: #14151a;
  --muted: #57606a;
  --line: #e0e0e0;
  --accent: #bd8526;
  --accent-soft: #f6eedc;
  --code-bg: #f3f4f6;
  --header: #14151a;
  --sidebar-w: 272px;
  --toc-w: 220px;
  --header-h: 56px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: Roboto, "PingFang SC", "Noto Sans SC", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--header-h);
  background: var(--header);
  color: #fff;
  border-bottom: 1px solid #2d2d2d;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}
.brand img { width: 28px; height: 28px; object-fit: contain; }
.tabs { display: flex; gap: 4px; flex-wrap: wrap; }
.tab {
  color: #d0d0d0;
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 13px;
}
.tab:hover, .tab.active { background: #2d2d2d; color: #fff; text-decoration: none; }
.tab.active { color: var(--accent); }
.meta {
  margin-left: auto;
  color: #a0a0a0;
  font-size: 12px;
}

.layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr) var(--toc-w);
  min-height: calc(100vh - var(--header-h));
}
.sidebar, .toc {
  background: var(--surface);
  border-right: 1px solid var(--line);
  padding: 16px 14px 40px;
  overflow: auto;
  max-height: calc(100vh - var(--header-h));
  position: sticky;
  top: var(--header-h);
}
.toc { border-right: 0; border-left: 1px solid var(--line); }
.sidebar h2, .toc h2 {
  margin: 0 0 10px;
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.nav-group { margin: 14px 0 8px; font-size: 12px; color: var(--muted); font-weight: 700; }
.sidebar a, .toc a {
  display: block;
  color: var(--text);
  padding: 5px 8px;
  border-radius: 6px;
  font-size: 13px;
}
.sidebar a.active, .toc a:hover, .sidebar a:hover {
  background: var(--accent-soft);
  text-decoration: none;
}
.sidebar .child { padding-left: 16px; }

.main {
  padding: 28px 40px 80px;
  max-width: 920px;
}
.banner {
  background: var(--accent-soft);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 14px;
  margin-bottom: 20px;
}
.source {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 18px;
}
.content h1 { font-size: 32px; line-height: 1.25; margin: 0 0 16px; }
.content h2 { font-size: 22px; margin: 32px 0 12px; padding-top: 8px; }
.content h3 { font-size: 18px; margin: 24px 0 10px; }
.content p, .content li { font-size: 16px; }
.content pre {
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  overflow: auto;
}
.content code {
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
}
.content :not(pre) > code {
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 4px;
}
.content table {
  border-collapse: collapse;
  width: 100%;
  margin: 16px 0;
  font-size: 14px;
}
.content th, .content td {
  border: 1px solid var(--line);
  padding: 8px 10px;
  text-align: left;
}
.content img { max-width: 100%; width: auto; height: auto !important; object-fit: contain; display: block; }
.content blockquote {
  margin: 16px 0;
  padding: 8px 14px;
  border-left: 4px solid var(--accent);
  background: var(--surface);
  color: var(--muted);
}
.admonition {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 10px;
  padding: 10px 14px;
  margin: 16px 0;
}
.admonition-title { font-weight: 700; margin-bottom: 6px; }
.pager {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 40px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.pager a { color: var(--text); }
.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 24px 0;
}
.card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  color: inherit;
  text-decoration: none;
}
.card:hover { border-color: var(--accent); text-decoration: none; }
.card h3 { margin: 0 0 8px; }
.card p { margin: 0; color: var(--muted); }

@media (max-width: 1100px) {
  .layout { grid-template-columns: var(--sidebar-w) minmax(0, 1fr); }
  .toc { display: none; }
}
@media (max-width: 800px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: relative; max-height: none; border-right: 0; border-bottom: 1px solid var(--line); }
  .main { padding: 20px 16px 60px; }
  .cards { grid-template-columns: 1fr; }
  .tabs { display: none; }
}