:root {
  color-scheme: light dark;
  --fg: #1a1a1a;
  --bg: #fafafa;
  --accent: #1c4587;
  --border: #ccc;
  --error: #b3261e;
}

@media (prefers-color-scheme: dark) {
  :root {
    --fg: #eaeaea;
    --bg: #1a1a1a;
    --border: #444;
  }
}

body {
  font-family: system-ui, sans-serif;
  background: var(--bg);
  color: var(--fg);
  margin: 0;
}

.container {
  max-width: 520px;
  margin: 4rem auto;
  padding: 0 1.5rem;
}

h1 {
  margin-bottom: 0.25rem;
}

.subtitle {
  color: #888;
  margin-top: 0;
}

.field {
  display: block;
  margin: 1.25rem 0;
}

.field > span,
legend {
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 600;
}

fieldset {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
}

.radio {
  display: block;
  font-weight: 400;
  margin: 0.35rem 0;
}

input[type="file"] {
  width: 100%;
}

button,
.button {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 0.7rem 1.4rem;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  margin-top: 0.5rem;
}

.status {
  margin-top: 1.5rem;
  font-weight: 600;
}

.status.erro {
  color: var(--error);
}