/* ==========================================================================
   LicitaciónYa — Interactive B2B ROI Calculator Component
   Compact, Mobile-Responsive Financial Simulator
   ========================================================================== */

.calculator-section {
  padding: 3.5rem 0;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.calculator-wrapper {
  max-width: 840px;
  margin: 0 auto;
  background: #ffffff;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 2.25rem 2rem;
}

.calculator-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

/* Controls Column */
.calc-controls {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.calc-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.calc-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--brand-navy);
}

.calc-badge {
  font-family: var(--font-mono);
  background: var(--brand-blue-soft);
  color: var(--brand-navy-light);
  border: 1px solid rgba(37, 99, 235, 0.2);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 700;
}

/* Custom Range Slider */
.calc-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 7px;
  border-radius: 4px;
  background: #e2e8f0;
  outline: none;
  cursor: pointer;
  transition: background 0.2s;
}

.calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--brand-blue);
  box-shadow: 0 2px 5px rgba(37, 99, 235, 0.35);
  cursor: pointer;
  border: 2px solid #ffffff;
}

.calc-slider-scale {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--text-dim);
}

/* Results Column */
.calc-results {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-align: center;
}

.calc-result-header {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
  color: var(--text-muted);
}

.calc-result-main {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--brand-green-text);
  line-height: 1.1;
  font-family: var(--font-sans);
}

.calc-result-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  padding: 0.85rem 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.78rem;
}

.stat-item small {
  display: block;
  color: var(--text-dim);
  margin-bottom: 0.15rem;
}

.stat-item strong {
  font-size: 0.96rem;
  color: var(--brand-navy);
}

.stat-item strong.roi-tag {
  color: var(--brand-green);
  font-weight: 800;
}

@media (max-width: 820px) {
  .calculator-section {
    padding: 2.25rem 0;
  }
  .calculator-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .calculator-wrapper {
    padding: 1.5rem 1.15rem;
  }
}