/* Calculadora de Água - Estilos */
.ca-container {
  max-width: 520px;
  margin: 24px auto;
  padding: 20px;
  border: 2px solid #00aaff;
  border-radius: 14px;
  background: #ffffff;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', Arial, 'Noto Sans', 'Liberation Sans', sans-serif;
  box-shadow: 0 6px 18px rgba(0,0,0,0.06);
}
.ca-title {
  text-align: center;
  color: #0077aa;
  margin: 0 0 12px;
  font-size: 1.25rem;
  font-weight: 700;
}
.ca-label {
  display: block;
  margin-top: 12px;
  font-weight: 600;
}
.ca-input, .ca-select, .ca-button {
  width: 100%;
  padding: 10px 12px;
  margin-top: 6px;
  border-radius: 10px;
  border: 1px solid #d1d5db;
  outline: none;
  transition: box-shadow .2s, border-color .2s;
}
.ca-input:focus, .ca-select:focus {
  border-color: #00aaff;
  box-shadow: 0 0 0 3px rgba(0,170,255,0.18);
}
.ca-button {
  margin-top: 16px;
  background: #00aaff;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  border: none;
}
.ca-button:hover {
  background: #008fce;
}
.ca-resultado {
  margin-top: 14px;
  padding: 12px;
  background: #e6f7ff;
  border: 1px solid #00aaff;
  border-radius: 10px;
  text-align: center;
  font-weight: 700;
  color: #0077aa;
}
.ca-help {
  font-size: .92rem;
  color: #4b5563;
  margin-top: 10px;
}
.ca-tip {
  margin-top: 10px;
  font-size: .95rem;
  background: #f9fafb;
  border: 1px dashed #93c5fd;
  padding: 10px 12px;
  border-radius: 10px;
  color: #374151;
}