body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #0d1117;
  color: #e7e9ea;
}

header, main, footer {
  padding: 1rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
}

.card {
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 8px;
  padding: 1rem;
  overflow: hidden;
}

img {
  max-width: 100%;
  border-radius: 4px;
}

pre.json {
  background: #0d1117;
  padding: 0.5rem;
  border-radius: 4px;
  overflow-x: auto;
  font-size: 12px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  border: 1px solid #30363d;
  padding: 0.5rem;
  text-align: left;
}

footer {
  margin-top: 2rem;
  text-align: center;
  color: #8b949e;
}

/* Estilos para o formulário de treinamento */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-group .muted {
  font-size: 0.8rem;
  color: #8b949e;
  margin-top: 0.25rem;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.checkbox-row input[type="checkbox"] {
  margin: 0;
}