/* Página "Sobre e fontes": mesma identidade do globo (fundo noturno, ciano de radar, âmbar de destaque).
   Coluna única de leitura, ~66 caracteres. Visual escuro fixo, como o globo. */
:root {
  --bg: #050b16; --panel: #0a1830; --line: rgba(90, 200, 230, .22); --ink: #dbe8f2; --muted: #8fa7bb;
  --cyan: #4fd8ea; --amber: #ffb42e;
  --display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --body: "Source Serif 4", Georgia, serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { background: var(--bg); }
body {
  margin: 0; background: radial-gradient(ellipse at 50% -10%, #0a1830 0%, var(--bg) 60%) no-repeat, var(--bg);
  color: var(--ink); font: 17px/1.65 var(--body); padding-inline: 20px;
}
.topo, main, footer { max-width: 44rem; margin-inline: auto; }
.topo { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; padding-block: 22px 8px; }
.topo > a { font: 600 16px var(--display); color: var(--ink); text-decoration: none; letter-spacing: .02em; }
.topo > a:hover { color: var(--cyan); }
main { padding-block: 28px 40px; }
.eyebrow { font: 600 15px var(--display); color: var(--cyan); letter-spacing: .08em; text-transform: uppercase; margin: 0 0 6px; }
h1 { font: 700 clamp(34px, 7vw, 52px)/1.02 var(--display); color: var(--amber); margin: 0 0 18px; text-wrap: balance;
     text-shadow: 0 0 18px rgba(255, 180, 46, .35); }
h2 { font: 600 24px/1.2 var(--display); color: #fff; margin: 40px 0 10px; padding-top: 18px; border-top: 1px solid var(--line); text-wrap: balance; }
p, li { max-width: 66ch; }
.lead { font-size: 19px; color: #eaf3f9; }
ul { padding-left: 1.2em; margin: 0; display: grid; gap: 8px; }
li::marker { color: var(--cyan); }
.bib li { padding-left: 2px; }
.bib em { color: #fff; font-style: italic; }
.nota { color: var(--muted); font-size: 15.5px; }
a { color: var(--cyan); }
a:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }
footer { border-top: 1px solid var(--line); padding-block: 18px 36px; color: var(--muted); font-size: 14px; }
@media (max-width: 480px) { body { font-size: 16px; padding-inline: 16px; } .lead { font-size: 17.5px; } }
a.email { font-weight: 600; white-space: nowrap; }