:root {
  --bg: #ffffff; --fg: #111827; --muted: #6b7280; --line: #e5e7eb; --card: #f9fafb; --accent: #2563eb;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0b0d12; --fg: #f3f4f6; --muted: #9ca3af; --line: #1f2937; --card: #111827; --accent: #60a5fa; }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 56px 24px 32px; }
header { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; font-size: 20px; }
.logo { width: 36px; height: 36px; border-radius: 9px; background: var(--fg); color: var(--bg);
        display: grid; place-items: center; font-weight: 700; }
.lang { display: flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.lang button { background: none; border: 0; color: var(--muted); padding: 4px 12px; font: inherit;
               font-size: 14px; cursor: pointer; }
.lang button[aria-pressed="true"] { background: var(--card); color: var(--fg); font-weight: 600; }
h1 { font-size: 34px; line-height: 1.2; margin: 56px 0 12px; letter-spacing: -0.02em; }
.lead { color: var(--muted); font-size: 19px; margin: 0 0 40px; }
h2 { font-size: 14px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin: 40px 0 12px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px 22px; }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
footer { max-width: 720px; margin: 0 auto; padding: 24px; border-top: 1px solid var(--line);
         color: var(--muted); font-size: 14px; }
footer p { margin: 2px 0; }
[data-lang="pt"] .en, [data-lang="en"] .pt { display: none; }

/* Legal pages */
.brand a { color: inherit; }
.doc h1 { margin-top: 48px; }
.doc .updated { color: var(--muted); font-size: 15px; margin: 0 0 32px; }
.doc h2 { font-size: 21px; text-transform: none; letter-spacing: -0.01em; color: var(--fg); margin: 36px 0 10px; }
.doc h3 { font-size: 17px; margin: 20px 0 6px; }
.doc p, .doc li { margin: 0 0 10px; }
.doc ul { padding-left: 22px; margin: 0 0 12px; }
.doc .note { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; }
.card .links { margin-top: 10px; font-size: 15px; }
.links a + a::before { content: "·"; color: var(--muted); margin: 0 8px; display: inline-block; }