:root {
  /* ----- COLORES MODO CLARO ----- */
  --body-base: #F0F2EF;
  --body-secondary: #20325e;
  --body-details: #E0E0E0;
  --text-color-base: #666;
  --text-color-secondary: #fff;
  --accent-color: #0da44d;
}

.darkmode {
  /* ----- COLORES MODO OSCURO ----- */
  --body-base: #2F3637;
  --body-secondary: #464F51;
  --body-details: #5F6B6D;
  --text-color-base: #fff;
  --text-color-secondary: #fff;
  --accent-color: #f69911;
}

.calculator-container {
  max-width: 600px;
  margin: 30px auto;
  background: #20325E;
  border-radius: 18px;
  box-shadow: 0 8px 32px 0 rgba(32, 32, 32, 0.15);
  padding: 40px 32px 32px 32px;
  width: 100%;
  box-sizing: border-box;
  margin-top: 0;
}

.calculator-container h1 {
  color: var(--accent-color);
  font-size: 1.8rem;
  font-weight: 700;
  margin: 0 0 24px 0;
  text-align: center;
}

.calculator-container .form-group {
  margin-bottom: 25px;
}

.calculator-container label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--accent-color);
}

.calculator-container select {
  width: 100%;
  padding: 12px;
  border: 2px solid #1A284C;
  border-radius: 6px;
  font-size: 16px;
  transition: border 0.3s;
}

.calculator-container select:focus {
  border-color: #3498db;
  outline: none;
}

.calculator-container .calculate-btn {
  background-color: #f69911;
  color: white;
  border: none;
  padding: 12px 24px;
  font-size: 16px;
  border-radius: 6px;
  cursor: pointer;
  width: 100%;
  transition: background-color 0.3s;
  font-weight: 600;
}

.calculator-container .calculate-btn:hover {
  background-color: #2980b9;
}

.calculator-container.result-container {
  margin-top: 30px;
  padding: 25px;
  border-radius: 8px;
  background-color: #f8f9fa;
  border-left: 5px solid #3498db;
}

.calculator-container .result-container h2 {
  color: #fff;
  margin-top: 30px;
  margin-bottom: 20px;
}

.result-details p {
  color: #fff;
  margin: 10px 0;
  font-size: 16px;
}

.calculator-container .total-cost {
  font-size: 24px;
  font-weight: bold;
  color: var(--accent-color);
}

.result-details span {
  text-align: center;
  color: #fff;
}

.result-container .centrar {
  text-align: center;
}

@media (max-width: 768px) {
  .calculator-container {
    padding: 20px;
  }
}