:root {
  --fundo: #f5f6f8;
  --card: #ffffff;
  --texto: #1d2330;
  --muted: #6b7385;
  --borda: #dfe3ea;
  --destaque: #2f6fed;
  --destaque-texto: #ffffff;
  --erro: #c4302b;
  --tempo: #8a93a6;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fundo: #14171d;
    --card: #1d2129;
    --texto: #e6e9ef;
    --muted: #9aa3b5;
    --borda: #2e3440;
    --destaque: #5b8ff9;
    --erro: #ff6b62;
    --tempo: #7d8698;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--fundo);
  color: var(--texto);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 860px; margin: 0 auto; padding: 32px 16px 64px; }
h1 { margin: 0; font-size: 28px; }
h2 { margin: 0; font-size: 16px; word-break: break-all; }
.sub, .muted { color: var(--muted); margin: 4px 0 0; }
header { margin-bottom: 20px; }
.card {
  background: var(--card);
  border: 1px solid var(--borda);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 16px;
}
.zona {
  border: 2px dashed var(--borda);
  border-radius: 10px;
  padding: 36px 16px;
  text-align: center;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: border-color .15s, background .15s;
}
.zona span { color: var(--muted); font-size: 14px; }
.zona:hover, .zona:focus, .zona.sobre { border-color: var(--destaque); outline: none; }
.zona.sobre { background: color-mix(in srgb, var(--destaque) 8%, transparent); }
.acoes-entrada { display: flex; align-items: center; gap: 12px; margin-top: 12px; }
button, select, textarea {
  font: inherit;
  color: var(--texto);
  background: var(--card);
  border: 1px solid var(--borda);
  border-radius: 8px;
}
button { padding: 6px 12px; cursor: pointer; }
button:hover:not(:disabled) { border-color: var(--destaque); }
button:disabled { opacity: .45; cursor: default; }
button.gravando { background: var(--erro); color: #fff; border-color: var(--erro); }
select { padding: 6px 8px; width: 100%; }
textarea { width: 100%; padding: 8px; resize: vertical; }
.opcoes { margin-top: 16px; }
.opcoes summary { cursor: pointer; color: var(--muted); }
.opcoes label { display: block; margin-top: 12px; font-size: 14px; color: var(--muted); }
.opcoes label > * { margin-top: 4px; }
.grade { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.cab { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.botoes { display: flex; gap: 6px; flex-shrink: 0; }
.barra { height: 4px; background: var(--borda); border-radius: 2px; margin: 12px 0; overflow: hidden; }
.barra div { height: 100%; width: 0; background: var(--destaque); transition: width .3s; }
.item.pronto .barra { display: none; }
.item.erro .estado { color: var(--erro); }
.alterna { font-size: 13px; color: var(--muted); display: inline-flex; gap: 6px; align-items: center; }
.texto { margin-top: 8px; white-space: pre-wrap; }
.texto .t { display: none; color: var(--tempo); font-variant-numeric: tabular-nums; font-size: 13px; margin-right: 6px; }
.texto.com-tempos .seg { display: block; }
.texto.com-tempos .t { display: inline; }
@media (max-width: 560px) {
  .cab { flex-direction: column; }
  .grade { grid-template-columns: 1fr; }
}
.rodape { font-size: 13px; text-align: center; }
.item.pronto .barra, .item.erro .barra { display: none; }