/* ======================================
   CALCULADORA EMAIL MARKETING - ESTILOS
   ====================================== */

:root {
  /* Colores base */
  --color-primario: #000000;
  --color-secundario: #fafafa;
  --color-borde: #e5e5e5;
  
  /* Colores de énfasis */
  --color-exito: #059669;
  --color-peligro: #ef4444;
  --color-info: #2563eb;
  
  /* Colores de estado */
  --status-por-debajo: #ef4444;
  --status-promedio: #f59e0b;
  --status-por-encima: #059669;
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f9fafb;
}

/* ======================================
   LAYOUT PRINCIPAL
   ====================================== */

.calculator-layout {
  display: grid;
  grid-template-columns: 450px 1fr;
  gap: 40px;
  max-width: 1400px;
  margin: 0 auto;
}

@media (max-width: 1024px) {
  .calculator-layout {
    grid-template-columns: 400px 1fr;
    gap: 30px;
  }
}

@media (max-width: 768px) {
  .calculator-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

/* ======================================
   FORMULARIO (COLUMNA IZQUIERDA)
   ====================================== */

.calculator-form {
  position: sticky;
  top: 20px;
  height: fit-content;
}

@media (max-width: 768px) {
  .calculator-form {
    position: static;
  }
}

.form-card {
  background: white;
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--color-borde);
}

.form-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primario);
  margin: 0 0 24px 0;
}

.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: #374151;
  margin-bottom: 8px;
}

.form-input,
.form-select {
  width: 100%;
  padding: 12px 16px;
  font-size: 16px;
  border: 1px solid var(--color-borde);
  border-radius: 8px;
  background-color: white;
  transition: all 0.2s;
  font-family: 'Inter', sans-serif;
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primario);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05);
}

.form-input:hover,
.form-select:hover {
  border-color: #9ca3af;
}

/* Radio buttons */
.radio-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.radio-label {
  display: flex;
  align-items: center;
  cursor: pointer;
  padding: 10px 16px;
  border: 1px solid var(--color-borde);
  border-radius: 8px;
  background-color: white;
  transition: all 0.2s;
  font-size: 14px;
}

.radio-label:hover {
  border-color: var(--color-primario);
  background-color: #fafafa;
}

.radio-label input[type="radio"] {
  margin-right: 8px;
}

.radio-label input[type="radio"]:checked + span {
  font-weight: 600;
}

.radio-label:has(input:checked) {
  border-color: var(--color-primario);
  background-color: #fafafa;
}

/* Botón Calcular */
.btn-calculate {
  width: 100%;
  padding: 16px 24px;
  font-size: 16px;
  font-weight: 600;
  color: white;
  background-color: var(--color-primario);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 32px;
}

.btn-calculate:hover {
  background-color: #1f2937;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-calculate:active {
  transform: translateY(0);
}

/* ======================================
   RESULTADOS (COLUMNA DERECHA)
   ====================================== */

.calculator-results {
  min-height: 600px;
}

.results-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: white;
  border-radius: 16px;
  padding: 64px 32px;
  text-align: center;
  border: 2px dashed var(--color-borde);
  min-height: 400px;
}

.results-container {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Cards de resultados */
.result-card {
  background: white;
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--color-borde);
  animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.result-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primario);
  margin: 0 0 20px 0;
}

.result-card p {
  font-size: 15px;
  color: #6b7280;
  line-height: 1.6;
  margin: 0 0 16px 0;
}

.result-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primario);
  margin: 16px 0;
}

.result-value-range {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primario);
  margin: 16px 0;
}

.result-value-small {
  font-size: 18px;
  font-weight: 600;
  color: #6b7280;
}

/* Card especiales */
.card-success {
  background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
  border-color: var(--color-exito);
}

.card-success .result-value {
  color: var(--color-exito);
}

.card-danger {
  background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
  border-color: var(--color-peligro);
}

.card-danger .result-value {
  color: var(--color-peligro);
  font-size: 48px;
}

/* Comparativa sectorial */
.comparison-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 16px;
}

@media (max-width: 640px) {
  .comparison-grid {
    grid-template-columns: 1fr;
  }
}

.comparison-item {
  padding: 16px;
  background: #f9fafb;
  border-radius: 8px;
  border: 1px solid var(--color-borde);
}

.comparison-label {
  font-size: 13px;
  color: #6b7280;
  margin-bottom: 8px;
}

.comparison-values {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.comparison-your-value {
  font-size: 18px;
  font-weight: 700;
}

.comparison-sector-value {
  font-size: 16px;
  font-weight: 600;
  color: #6b7280;
}

.status-por-debajo {
  color: var(--status-por-debajo);
}

.status-promedio {
  color: var(--status-promedio);
}

.status-por-encima {
  color: var(--status-por-encima);
}

/* Recomendaciones */
.recommendations-list {
  list-style: none;
  padding: 0;
  margin: 16px 0 0 0;
}

.recommendation-item {
  display: flex;
  align-items: start;
  gap: 16px;
  padding: 16px;
  background: #f9fafb;
  border-radius: 8px;
  margin-bottom: 12px;
  border: 1px solid var(--color-borde);
}

.recommendation-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: var(--color-primario);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.recommendation-text {
  flex: 1;
  font-size: 15px;
  color: #374151;
  line-height: 1.5;
  margin: 0;
  padding-top: 8px;
}

/* ROI Metrics */
.roi-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin: 20px 0;
}

@media (max-width: 640px) {
  .roi-metrics {
    grid-template-columns: 1fr;
  }
}

.roi-metric {
  text-align: center;
  padding: 24px;
  background: #f9fafb;
  border-radius: 12px;
  border: 1px solid var(--color-borde);
}

.roi-metric-value {
  font-size: 36px;
  font-weight: 700;
  color: var(--color-exito);
  margin-bottom: 8px;
}

.roi-metric-label {
  font-size: 14px;
  color: #6b7280;
  font-weight: 500;
}

.roi-description {
  margin-top: 16px;
  padding: 16px;
  background: #f9fafb;
  border-radius: 8px;
  font-size: 14px;
  color: #4b5563;
  line-height: 1.6;
}

/* ======================================
   CTA SECTION
   ====================================== */

.cta-section {
  margin-top: 60px;
  animation: fadeIn 0.5s ease-in-out;
}

.cta-card {
  background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
  border-radius: 20px;
  padding: 48px;
  text-align: center;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

@media (max-width: 768px) {
  .cta-card {
    padding: 32px 24px;
  }
}

.cta-title {
  font-size: 32px;
  font-weight: 700;
  color: white;
  margin: 0 0 16px 0;
  line-height: 1.3;
}

@media (max-width: 768px) {
  .cta-title {
    font-size: 24px;
  }
}

.cta-subtitle {
  font-size: 18px;
  color: #d1d5db;
  margin: 0 0 32px 0;
  line-height: 1.6;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 768px) {
  .cta-subtitle {
    font-size: 16px;
  }
}

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 18px 40px;
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primario);
  background: white;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.3s;
  box-shadow: 0 4px 12px rgba(255, 255, 255, 0.2);
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(255, 255, 255, 0.3);
  background: #f9fafb;
}

.cta-button:active {
  transform: translateY(-1px);
}

@media (max-width: 768px) {
  .cta-button {
    width: 100%;
    padding: 16px 24px;
    font-size: 16px;
  }
}

/* ======================================
   UTILIDADES
   ====================================== */

.mr-2 {
  margin-right: 8px;
}

.mb-4 {
  margin-bottom: 16px;
}

.text-center {
  text-align: center;
}