/* Estilos para la Calculadora Solar Avanzada */

/* Formulario Solar */
.solar-form {
  background: white;
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  margin-bottom: 2rem;
}

.form-section {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid #e5e7eb;
}

.form-section:last-child {
  border-bottom: none;
}

.form-section h3 {
  color: #1f2937;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.form-section h3 i {
  color: #f97316;
  font-size: 1.1rem;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-weight: 500;
  color: #374151;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}

.form-group input,
.form-group select {
  padding: 0.75rem;
  border: 2px solid #e5e7eb;
  border-radius: 8px;
  font-size: 0.875rem;
  transition: all 0.2s ease;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: #f97316;
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.1);
}

.form-group input.error,
.form-group select.error {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-group small {
  color: #6b7280;
  font-size: 0.75rem;
  margin-top: 0.25rem;
}

/* Checkbox personalizado */
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  font-weight: 500;
  color: #374151;
}

.checkbox-label input[type="checkbox"] {
  display: none;
}

.checkmark {
  width: 20px;
  height: 20px;
  border: 2px solid #e5e7eb;
  border-radius: 4px;
  position: relative;
  transition: all 0.2s ease;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
  background-color: #f97316;
  border-color: #f97316;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
  content: "✓";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 12px;
  font-weight: bold;
}

/* Botones de acción */
.form-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.btn-secondary {
  background: #6b7280;
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-secondary:hover {
  background: #4b5563;
  transform: translateY(-1px);
}

/* Indicador de carga */
.loading-indicator {
  text-align: center;
  padding: 2rem;
  background: white;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid #e5e7eb;
  border-top: 4px solid #f97316;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 1rem;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Estimación rápida */
.quick-estimate {
  background: linear-gradient(135deg, #f97316, #ea580c);
  color: white;
  padding: 2rem;
  border-radius: 16px;
  margin-bottom: 2rem;
}

.quick-estimate h3 {
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.estimate-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.estimate-item {
  background: rgba(255, 255, 255, 0.1);
  padding: 1rem;
  border-radius: 8px;
  text-align: center;
}

.estimate-label {
  display: block;
  font-size: 0.875rem;
  opacity: 0.9;
  margin-bottom: 0.5rem;
}

.estimate-value {
  display: block;
  font-size: 1.25rem;
  font-weight: 600;
}

/* Resultados detallados */
.results-section {
  background: white;
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  margin-top: 2rem;
}

.results-section h3 {
  color: #1f2937;
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.result-card {
  background: #f9fafb;
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid #e5e7eb;
}

.result-card h4 {
  color: #1f2937;
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.result-card h4 i {
  color: #f97316;
}

.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid #e5e7eb;
}

.result-item:last-child {
  border-bottom: none;
}

.result-item span:first-child {
  color: #6b7280;
  font-size: 0.875rem;
}

.result-item span:last-child {
  color: #1f2937;
  font-weight: 600;
}

/* Desglose de costos */
.cost-breakdown {
  background: #f9fafb;
  padding: 1.5rem;
  border-radius: 12px;
  margin-bottom: 2rem;
}

.cost-breakdown h4 {
  color: #1f2937;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.cost-breakdown h4 i {
  color: #f97316;
}

.cost-grid {
  display: grid;
  gap: 0.75rem;
}

.cost-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem;
  background: white;
  border-radius: 8px;
  border: 1px solid #e5e7eb;
}

.cost-item.total {
  background: #f97316;
  color: white;
  font-weight: 600;
  margin-top: 0.5rem;
}

.cost-label {
  font-size: 0.875rem;
}

.cost-value {
  font-weight: 600;
  font-size: 0.875rem;
}

/* Gráfico de costos */
.cost-chart {
  margin-top: 1.5rem;
}

.cost-breakdown {
  background: #f9fafb;
  padding: 1.5rem;
  border-radius: 12px;
}

.cost-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem;
  background: white;
  border-radius: 8px;
  margin-bottom: 0.5rem;
  border: 1px solid #e5e7eb;
}

.cost-item.total {
  background: #f97316;
  color: white;
  font-weight: 600;
}

.cost-bar {
  width: 100%;
  height: 8px;
  background: #e5e7eb;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.cost-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.3s ease;
}

.cost-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
}

.cost-name {
  font-weight: 500;
}

.cost-value {
  font-weight: 600;
}

.cost-percentage {
  color: #6b7280;
  font-size: 0.75rem;
}

/* Acciones de resultados */
.result-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 768px) {
  .solar-form {
    padding: 1rem;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .results-grid {
    grid-template-columns: 1fr;
  }
  
  .estimate-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .form-actions {
    flex-direction: column;
  }
  
  .result-actions {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .estimate-grid {
    grid-template-columns: 1fr;
  }
}