:root {
  --fundo: #f6f7f9;
  --cartao: #ffffff;
  --texto: #1d2330;
  --suave: #5d6577;
  --borda: #e3e6ec;
  --marca: #0f6d5c;
  --perigo: #b42318;
  --ok: #067647;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fundo: #12151b;
    --cartao: #1b1f27;
    --texto: #e8eaef;
    --suave: #a3aab8;
    --borda: #2c323d;
    --marca: #3cc4a6;
    --perigo: #f97066;
    --ok: #47cd89;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--fundo);
  color: var(--texto);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main {
  width: 100%;
  max-width: 440px;
  margin: 32px 16px 16px;
  padding: 24px;
  background: var(--cartao);
  border: 1px solid var(--borda);
  border-radius: 12px;
}
h1 { font-size: 1.35rem; margin: 0 0 4px; }
.muted { color: var(--suave); }
.codigo { font: 600 1.1rem ui-monospace, monospace; letter-spacing: .04em; }
.qr { display: block; width: 100%; max-width: 260px; margin: 16px auto; image-rendering: pixelated; background: #fff; padding: 8px; border-radius: 8px; }
dl { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; margin: 16px 0; }
dt { color: var(--suave); }
dd { margin: 0; }
.selo { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: .85rem; font-weight: 600; }
.selo.ok { color: var(--ok); border: 1px solid var(--ok); }
.selo.cancelada { color: var(--perigo); border: 1px solid var(--perigo); }
button {
  width: 100%;
  margin-top: 16px;
  padding: 12px;
  border: 0;
  border-radius: 8px;
  font: inherit;
  font-weight: 600;
  color: #fff;
  background: var(--perigo);
  cursor: pointer;
}
button[disabled] { opacity: .6; cursor: wait; }
.erro { color: var(--perigo); }
a { color: var(--marca); }
footer { margin: 8px 16px 32px; color: var(--suave); font-size: .85rem; }