:root {
  --fundo: #080a09;
  --cartao: #131715;
  --borda: #1b211e;
  --texto: #f2f5f3;
  --secundario: #a9b4ad;
  --neon: #61e880;
  --ambar: #f7cc4a;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root {
    --fundo: #e9eeea;
    --cartao: #f7f9f7;
    --borda: #dde4df;
    --texto: #0c110e;
    --secundario: #46514a;
    --neon: #0b6e35;
    --ambar: #7a5600;
    color-scheme: light;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--fundo);
  color: var(--texto);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 48px 16px 80px; }
header.topo { display: flex; align-items: center; gap: 12px; margin-bottom: 40px; }
header.topo a { color: var(--texto); text-decoration: none; font-weight: 600; font-size: 20px; }
header.topo .marca { display: inline-flex; align-items: center; gap: 10px; letter-spacing: -0.02em; }
:focus-visible { outline: 3px solid var(--ambar); outline-offset: 3px; border-radius: 6px; }
nav { margin-left: auto; display: flex; gap: 18px; font-size: 15px; }
nav a { color: var(--secundario); font-weight: 400 !important; font-size: 15px !important; }
h1 { font-size: 36px; font-weight: 300; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 21px; font-weight: 600; margin: 40px 0 8px; }
h3 { font-size: 17px; font-weight: 600; margin: 24px 0 4px; }
p, li { color: var(--texto); }
.sub { color: var(--secundario); margin: 0 0 32px; }
a { color: var(--neon); }
.cartao { background: var(--cartao); border: 1px solid var(--borda); border-radius: 14px; padding: 20px 22px; margin: 24px 0; }
.cartao p:first-child { margin-top: 0; }
.cartao p:last-child { margin-bottom: 0; }
ul { padding-left: 22px; }
li { margin: 4px 0; }
.botao { display: inline-block; background: #61e880; color: #04130a; padding: 10px 18px; border-radius: 10px; text-decoration: none; font-weight: 600; }
footer { margin-top: 64px; color: var(--secundario); font-size: 14px; border-top: 1px solid var(--borda); padding-top: 20px; }
@media (max-width: 520px) {
  header.topo { flex-wrap: wrap; }
  nav { margin-left: 0; width: 100%; }
  h1 { font-size: 30px; }
}