:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --surface: #ffffff;
  --text: #162033;
  --muted: #566174;
  --line: #dce2eb;
  --accent: #2457d6;
  --accent-dark: #173b96;
  --soft: #edf3ff;
  --warning: #fff8e6;
  --warning-line: #e7b84b;
  --radius: 16px;
  --shadow: 0 16px 44px rgba(22, 32, 51, 0.08);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(36, 87, 214, 0.09), transparent 30rem),
    var(--bg);
  font: 17px/1.65 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: var(--accent-dark);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
}

a:hover { color: var(--accent); }

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
}

.nav {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 15px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 0.91rem;
}

.nav-links a[aria-current="page"] {
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

.page {
  width: min(1120px, calc(100% - 32px));
  margin: 42px auto 72px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 290px;
  gap: 34px;
  align-items: start;
}

.page.single { grid-template-columns: minmax(0, 820px); justify-content: center; }

.document,
.toc {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.document {
  min-width: 0;
  padding: clamp(26px, 5vw, 58px);
  overflow-wrap: anywhere;
}

.toc {
  position: sticky;
  top: 20px;
  padding: 22px;
  font-size: 0.89rem;
}

.toc strong { display: block; margin-bottom: 9px; }
.toc ol { margin: 0; padding-left: 1.25rem; }
.toc li + li { margin-top: 5px; }

h1, h2, h3 {
  line-height: 1.2;
  letter-spacing: -0.025em;
  text-wrap: balance;
}

h1 { margin: 0 0 12px; font-size: clamp(2.1rem, 6vw, 4.2rem); }
h2 { margin: 2.8rem 0 1rem; font-size: clamp(1.45rem, 3vw, 2rem); }
h3 { margin: 2rem 0 0.75rem; font-size: 1.18rem; }
p, ul, ol, table, address { margin: 0 0 1rem; }
ul, ol { padding-left: 1.35rem; }
li + li { margin-top: 0.35rem; }
address { font-style: normal; }

.eyebrow {
  margin-bottom: 10px;
  color: var(--accent-dark);
  font-size: 0.79rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}

.lede { color: var(--muted); font-size: 1.08rem; max-width: 72ch; }
.meta { color: var(--muted); font-size: 0.86rem; }

.notice {
  margin: 1.6rem 0;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 5px solid var(--accent);
  border-radius: 10px;
  background: var(--soft);
}

.notice.warning {
  border-color: var(--warning-line);
  border-left-color: var(--warning-line);
  background: var(--warning);
}

.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 1.4rem 0;
}

.card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fbfcfe;
}

.card h3 { margin-top: 0; }

.table-wrap { overflow-x: auto; margin: 1.2rem 0 1.8rem; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { padding: 11px 12px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: #f0f4fa; }
code { font-size: 0.88em; overflow-wrap: anywhere; }

.site-footer {
  border-top: 1px solid var(--line);
  background: #fff;
}

.footer-inner {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 26px 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.footer-inner a + a { margin-left: 16px; }

@media (max-width: 900px) {
  .page { grid-template-columns: 1fr; }
  .toc { position: static; }
  .cards { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .nav { align-items: flex-start; flex-direction: column; }
  .document { padding: 24px 20px; }
  .page { width: min(100% - 20px, 1120px); margin-top: 20px; }
  .footer-inner { width: min(100% - 24px, 1120px); }
}

@media print {
  body { background: #fff; color: #000; font-size: 11pt; }
  .site-header, .toc, .site-footer { display: none; }
  .page, .page.single { display: block; width: 100%; margin: 0; }
  .document { border: 0; box-shadow: none; padding: 0; }
  a { color: #000; text-decoration: none; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 8pt; overflow-wrap: anywhere; }
  h2, h3 { break-after: avoid; }
  table, .notice, .card { break-inside: avoid; }
}