/* === Estilo general del formulario === */
#form {
  max-width: 500px;
  margin: 40px auto;
  padding: 25px;
  background: #ffffff;
  border-radius: 15px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  font-family: 'Arial', sans-serif;
}

/* === Títulos y texto === */
#form label {
  font-weight: bold;
  color: #333;
  margin-bottom: 5px;
  display: block;
}

/* === Campos de texto === */
#form .form-control {
  width: 100%;
  padding: 12px;
  margin-bottom: 20px;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 15px;
  transition: all 0.3s ease;
}

/* Efecto al enfocar un campo */
#form .form-control:focus {
  border-color: #4CAF50; /* verde suave */
  box-shadow: 0 0 5px rgba(76, 175, 80, 0.4);
  outline: none;
}

/* === Textarea === */
#form textarea {
  resize: vertical;
}

/* === Botón === */
#form button,
#form input[type="submit"] {
  width: 100%;
  padding: 14px;
  background: #4CAF50;
  color: #fff;
  font-size: 16px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s ease;
}

/* Efecto hover del botón */
#form button:hover,
#form input[type="submit"]:hover {
  background: #43a047;
}

/* === Ajustes responsivos === */
@media (max-width: 600px) {
  #form {
    padding: 20px;
  }
  #form .form-control {
    font-size: 14px;
  }
}