/* ==========================================================================
   Modern Boilers Pvt. Ltd. - Boiler Sizing & RFQ Estimator Styles
   Flat Directory Architecture: public/css/boilers-calculator.css
   Brand Colors: #2F6CA5, #1B4570, #0E253F
   ========================================================================== */

.calculator-wrapper {
  background: #FFFFFF;
  border: 1px solid rgba(47, 108, 165, 0.16);
  border-radius: 20px;
  box-shadow: 0 24px 50px -15px rgba(14, 37, 63, 0.1);
}

.calc-step-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  font-weight: 700;
  font-size: 13px;
  background-color: #2F6CA5;
  color: #FFFFFF;
}

.option-card-radio {
  display: none;
}

.option-card-label {
  display: block;
  cursor: pointer;
  padding: 14px 16px;
  border: 1.5px solid #E2E8F0;
  border-radius: 12px;
  background: #FFFFFF;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  text-align: left;
}

.option-card-label:hover {
  border-color: #2F6CA5;
  background: #F8FAFC;
}

.option-card-radio:checked + .option-card-label {
  border-color: #2F6CA5;
  background: #F0F6FC;
  box-shadow: 0 0 0 2px rgba(47, 108, 165, 0.25);
}

.option-card-radio:checked + .option-card-label .option-title {
  color: #1B4570;
  font-weight: 700;
}

/* Quote Summary Box */
.calc-summary-panel {
  background: linear-gradient(180deg, #0E253F 0%, #15375B 100%);
  color: #FFFFFF;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.calc-lead-estimate {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: #60A5FA;
}

/* Range Slider Styling */
input[type=range].custom-slider {
  -webkit-appearance: none;
  width: 100%;
  background: #CBD5E1;
  height: 7px;
  border-radius: 4px;
  outline: none;
}

input[type=range].custom-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #2F6CA5;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(47, 108, 165, 0.6);
  border: 2px solid #FFFFFF;
  transition: transform 0.12s ease;
}

input[type=range].custom-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  background: #1B4570;
}