:root {
  --tinta: #1a1a1a;
  --suave: #5c5c5c;
  --linha: #e5e5e5;
  --fundo: #ffffff;
  --faixa: #f6f6f4;
}
@media (prefers-color-scheme: dark) {
  :root { --tinta:#ededed; --suave:#a0a0a0; --linha:#2a2a2a; --fundo:#141414; --faixa:#1c1c1c; }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--fundo);
  color: var(--tinta);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
main { max-width: 720px; margin: 0 auto; padding: 64px 24px 96px; }
.marca {
  margin: 0 0 24px; font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--suave);
}
h1 { font-size: 1.75rem; line-height: 1.25; margin: 0 0 8px; letter-spacing: -0.02em; }
.sub { color: var(--suave); margin: 0 0 32px; font-size: 0.95rem; }
h2 { font-size: 1.05rem; margin: 44px 0 12px; letter-spacing: -0.01em; scroll-margin-top: 24px; }
ul, ol { padding-left: 20px; margin: 12px 0; }
li { margin: 6px 0; }
a { color: inherit; text-underline-offset: 2px; }
code { font: 0.875em ui-monospace, SFMono-Regular, Menlo, monospace; white-space: nowrap; }
nav {
  background: var(--faixa); border-radius: 8px;
  padding: 16px 20px; margin: 0 0 8px; font-size: 0.95rem;
}
nav ol { margin: 0; columns: 2; column-gap: 32px; }
nav li { break-inside: avoid; }
nav a { text-decoration: none; }
nav a:hover { text-decoration: underline; }
.tabela { overflow-x: auto; margin: 16px 0; }
table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
th, td { text-align: left; vertical-align: top; padding: 10px 12px 10px 0; border-bottom: 1px solid var(--linha); }
th { color: var(--suave); font-weight: 600; font-size: 0.85rem; }
footer {
  margin-top: 56px; padding-top: 24px;
  border-top: 1px solid var(--linha);
  color: var(--suave); font-size: 0.9rem;
}
@media (max-width: 560px) {
  main { padding: 40px 16px 72px; }
  nav ol { columns: 1; }
}