/* Reset & Base */
body {
  margin: 0;
  font-family: Arial, sans-serif;
  background-color: #f0f2f5;
}

/* Header */
header {
  background: linear-gradient(135deg, #007BFF, #0056cc);
  color: white;
  padding: 16px 24px;
  text-align: center;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

/* Main */
main {
  padding: 24px 16px;
}

/* Container */
.container {
  max-width: 800px;
  margin: auto;
  background: white;
  padding: 28px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

h2 {
  margin: 0 0 16px;
  color: #333;
  border-bottom: 2px solid #007BFF;
  padding-bottom: 6px;
}

/* Grupos e Labels */
.grupo {
  margin-bottom: 14px;
}

label {
  display: block;
  font-weight: 600;
  font-size: 13px;
  color: #555;
  margin-bottom: 4px;
}

/* Inputs */
input, select {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
  transition: border-color 0.2s;
  box-sizing: border-box;
}

input:focus, select:focus {
  outline: none;
  border-color: #007BFF;
  box-shadow: 0 0 0 3px rgba(0,123,255,0.1);
}

/* Linha (lado a lado) */
.linha {
  display: flex;
  gap: 12px;
}

.linha .grupo {
  flex: 1;
}

/* Botão */
button {
  width: 100%;
  padding: 11px;
  background-color: #28a745;
  color: white;
  border: none;
  font-size: 15px;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.2s;
  margin-top: 6px;
}

button:hover {
  background-color: #218838;
}

/* Footer */
footer {
  text-align: center;
  padding: 12px;
  background-color: #eee;
  margin-top: 20px;
  font-size: 13px;
  color: #777;
}