:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --app-bg: #eef2f5;
  --ink: #17202a;
  --muted: #617182;
  --line: #d9e0e7;
  --panel: #ffffff;
  --primary: #235789;
  --primary-dark: #1a4268;
  --accent: #f2a541;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--app-bg);
  color: var(--ink);
  line-height: 1.65;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 0;
  flex-wrap: wrap;
}
.nav-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--ink); text-decoration: none; }
.nav-brand img { width: 34px; height: 34px; }
.nav-links { display: flex; align-items: center; gap: 16px; }
.nav-links a { color: var(--primary); text-decoration: none; font-weight: 600; font-size: 14px; }
.nav-links a.launch {
  background: var(--primary);
  color: #fff;
  padding: 9px 18px;
  border-radius: 8px;
}
.nav-links a.launch:hover { background: var(--primary-dark); }

.layout {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 28px;
  padding: 18px 0 48px;
  align-items: start;
}

.side {
  position: sticky;
  top: 18px;
  display: grid;
  gap: 2px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
}
.side strong { font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin-bottom: 8px; }
.side a {
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  padding: 7px 10px;
  border-radius: 8px;
}
.side a:hover { background: #f1f5f8; }
.side a.active { background: var(--primary); color: #fff; font-weight: 600; }

main { min-width: 0; }

article.page {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 34px 38px 38px;
}

.page .eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  margin: 0 0 8px;
}
.page h1 { font-size: 30px; line-height: 1.2; margin: 0 0 12px; }
.page h2 { font-size: 21px; margin: 36px 0 10px; padding-top: 8px; border-top: 1px solid var(--line); }
.page h3 { font-size: 16px; margin: 22px 0 6px; }
.page p, .page li { color: #36434f; font-size: 15px; }
.page .lede { font-size: 17px; color: var(--muted); margin-bottom: 8px; }
.page ul, .page ol { padding-left: 22px; }
.page li { margin-bottom: 7px; }

.page code {
  background: #e8eef4;
  border-radius: 5px;
  padding: 2px 6px;
  font-size: 0.9em;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.page pre {
  overflow: auto;
  margin: 12px 0;
  padding: 14px 16px;
  background: #101820;
  border-radius: 10px;
  color: #e7eef5;
  font-size: 13.5px;
  line-height: 1.55;
}
.page pre code { background: none; padding: 0; color: inherit; }

.callout {
  border: 1px solid var(--line);
  border-left: 5px solid var(--primary);
  border-radius: 10px;
  background: #f6f9fc;
  padding: 12px 16px;
  margin: 14px 0;
}
.callout.warn { border-left-color: #c75b12; background: #fdf6ee; }
.callout p { margin: 0; }
.callout strong { color: var(--ink); }

table.ref {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0;
  font-size: 14px;
}
table.ref th, table.ref td {
  border: 1px solid var(--line);
  padding: 9px 12px;
  text-align: left;
  vertical-align: top;
}
table.ref th { background: #f1f5f8; font-size: 13px; }
table.ref code { white-space: nowrap; }

.two-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin: 14px 0;
}
.list-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 18px;
}
.list-card.do { border-top: 4px solid #15847d; }
.list-card.dont { border-top: 4px solid #c75b12; }
.list-card h3 { margin-top: 0; }
.list-card ul { margin: 0; }

.page-nav {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 30px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 14px;
}
.page-nav a { color: var(--primary); text-decoration: none; font-weight: 600; }

footer.site {
  border-top: 1px solid var(--line);
  padding: 22px 0 32px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: space-between;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 820px) {
  .layout { grid-template-columns: 1fr; }
  .side { position: static; }
  article.page { padding: 24px 20px 28px; }
  .two-col { grid-template-columns: 1fr; }
}