/* ==========================================================================
   SOORYAVAMSHI SOLAR PROJECTS LLP - SOLAR CALCULATOR COMPONENT
   ========================================================================== */

.calculator-section {
  position: relative;
  padding: 96px 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(253, 186, 45, 0.18) 0%, rgba(244, 248, 251, 0.95) 75%);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}

.calc-container-wrap {
  max-width: 1120px;
  margin: 0 auto;
}

.calc-master-card {
  background: #FFFFFF;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border: 1.5px solid rgba(245, 130, 32, 0.25);
  overflow: hidden;
  position: relative;
}

/* Card Header Ambient Glow Bar */
.calc-master-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, #073B6B 0%, #F58220 50%, #FDBA2D 100%);
}

.calc-grid-layout {
  display: grid;
  grid-template-columns: 1.05fr 1.2fr;
  min-height: 560px;
}

/* Left Pane: Inputs & Configurations */
.calc-input-pane {
  padding: 44px 38px;
  border-right: 1px solid var(--color-border-light);
  background: #FFFFFF;
  display: flex;
  flex-direction: column;
}

.calc-pane-title {
  font-size: 1.4rem;
  color: var(--color-primary);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.calc-pane-title svg {
  color: var(--color-secondary);
}

.calc-pane-sub {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 28px;
}

/* Input Type Tabs */
.calc-input-tabs {
  display: flex;
  background: var(--color-bg-light);
  padding: 4px;
  border-radius: var(--radius-sm);
  margin-bottom: 24px;
  border: 1px solid var(--color-border-light);
}

.calc-tab-btn {
  flex: 1;
  padding: 10px 14px;
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 600;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: var(--radius-xs);
  transition: all var(--transition-fast);
  text-align: center;
}

.calc-tab-btn.active {
  background: #FFFFFF;
  color: var(--color-primary);
  box-shadow: var(--shadow-xs);
}

/* Quick Consumption Presets */
.preset-pills-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.preset-pills-row {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.preset-pill {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border-medium);
  color: var(--color-text-dark);
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.preset-pill:hover {
  border-color: var(--color-secondary);
  color: var(--color-secondary);
}

.preset-pill.active {
  background: var(--grad-solar-soft);
  border-color: var(--color-secondary);
  color: var(--color-secondary);
  font-weight: 700;
}

/* Range Slider & Number Input Sync */
.calc-field-group {
  margin-bottom: 24px;
}

.calc-field-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.calc-field-label {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-dark);
}

.calc-field-display {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--color-bg-light);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border-medium);
}

.calc-field-display input {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-primary);
  border: none;
  background: transparent;
  width: 90px;
  text-align: right;
  outline: none;
}

.calc-field-display .unit-tag {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-secondary);
}

/* Custom Styled Range Slider */
.calc-slider-wrap {
  position: relative;
  margin: 12px 0 8px;
  padding: 4px 0;
}

.calc-range-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 42px; /* Generous touch hit area on mobile & desktop */
  background: transparent;
  outline: none;
  cursor: pointer;
  touch-action: none; /* Prevents mobile vertical scroll from hijacking slider dragging */
  margin: 0;
  padding: 0;
  display: block;
  -webkit-tap-highlight-color: transparent;
}

/* WebKit Track */
.calc-range-slider::-webkit-slider-runnable-track {
  width: 100%;
  height: 10px;
  border-radius: 5px;
  background: linear-gradient(to right, #F58220 0%, #FDBA2D var(--slider-percent, 24%), #E2EBF2 var(--slider-percent, 24%), #E2EBF2 100%);
  cursor: pointer;
}

/* WebKit Thumb */
.calc-range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--grad-solar);
  box-shadow: 0 2px 10px rgba(245, 130, 32, 0.5);
  cursor: pointer;
  border: 3.5px solid #FFFFFF;
  margin-top: -11px; /* Center thumb vertically on 10px track */
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.calc-range-slider:active::-webkit-slider-thumb,
.calc-range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 4px 14px rgba(245, 130, 32, 0.7);
}

/* Firefox Track */
.calc-range-slider::-moz-range-track {
  width: 100%;
  height: 10px;
  border-radius: 5px;
  background: linear-gradient(to right, #F58220 0%, #FDBA2D var(--slider-percent, 24%), #E2EBF2 var(--slider-percent, 24%), #E2EBF2 100%);
  cursor: pointer;
}

/* Firefox Thumb */
.calc-range-slider::-moz-range-thumb {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--grad-solar);
  box-shadow: 0 2px 10px rgba(245, 130, 32, 0.5);
  cursor: pointer;
  border: 3.5px solid #FFFFFF;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.calc-range-slider:active::-moz-range-thumb,
.calc-range-slider::-moz-range-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 4px 14px rgba(245, 130, 32, 0.7);
}

.slider-ticks-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* Location Selection */
.location-select-wrap {
  margin-bottom: 28px;
}

.location-select-wrap select {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border-medium);
  background: #FFFFFF;
  color: var(--color-text-dark);
  font-weight: 500;
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.location-select-wrap select:focus {
  border-color: var(--color-secondary);
}

.calc-submit-btn {
  width: 100%;
  padding: 16px;
  font-size: 1.05rem;
  margin-top: auto;
}

/* Right Pane: Live Calculated Results */
.calc-results-pane {
  padding: 44px 38px;
  background: linear-gradient(180deg, #F8FAFD 0%, #EFF4F9 100%);
  display: flex;
  flex-direction: column;
}

/* Hero Recommended Capacity Badge */
.calc-hero-badge-wrap {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}

.calc-hero-badge-wrap::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 160px;
  height: 100%;
  background: radial-gradient(circle at 100% 50%, rgba(253, 186, 45, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

/* Gauge / Progress Ring */
.calc-gauge-circle {
  width: 100px;
  height: 100px;
  flex-shrink: 0;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.calc-gauge-svg {
  transform: rotate(-90deg);
  width: 100%;
  height: 100%;
}

.calc-gauge-bg {
  fill: none;
  stroke: #E2EBF2;
  stroke-width: 8;
}

.calc-gauge-fill {
  fill: none;
  stroke: url(#solarGradientGauge);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 264;
  stroke-dashoffset: 60;
  transition: stroke-dashoffset 600ms cubic-bezier(0.16, 1, 0.3, 1);
}

.calc-gauge-icon {
  position: absolute;
  color: var(--color-secondary);
}

.calc-hero-info {
  flex-grow: 1;
}

.calc-hero-tag {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.calc-hero-val {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.2vw, 2.7rem);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.1;
  margin-bottom: 4px;
}

.calc-hero-sub {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* 6-Card Metrics Grid */
.calc-metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 24px;
}

.calc-metric-box {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 16px;
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-xs);
  display: flex;
  flex-direction: column;
}

.calc-metric-box:hover {
  border-color: var(--color-secondary);
}

.calc-metric-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--color-bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.calc-metric-icon svg {
  width: 18px;
  height: 18px;
}

.calc-metric-label {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  line-height: 1.25;
  margin-bottom: 6px;
}

.calc-metric-val {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text-dark);
  margin-top: auto;
}

.calc-metric-val.green-text {
  color: var(--color-success);
}

/* Dynamic Solar Panel Visualizer */
.calc-panel-visualizer-box {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 16px 20px;
  border: 1px solid var(--color-border-light);
  margin-bottom: 24px;
}

.visualizer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.visualizer-title {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.visualizer-count-tag {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-secondary);
  background: var(--grad-solar-soft);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.solar-panel-icons-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-height: 85px;
  overflow-y: auto;
  padding: 4px 2px;
}

.mini-panel-icon {
  width: 28px;
  height: 40px;
  background: #0B3A64;
  border-radius: 3px;
  border: 1px solid #38BDF8;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
  padding: 2px;
  transition: transform var(--transition-fast);
}

.mini-panel-icon:hover {
  transform: scale(1.15);
  background: #0284C7;
}

.mini-panel-cell {
  height: 6px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 1px;
}

/* Formula Breakdown Collapsible */
.calc-formula-accordion {
  margin-bottom: 20px;
}

.calc-formula-toggle {
  background: transparent;
  border: none;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.calc-formula-toggle:hover {
  color: var(--color-secondary);
}

.calc-formula-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 320ms ease;
  background: #FFFFFF;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-light);
  margin-top: 8px;
}

.calc-formula-content.expanded {
  max-height: 280px;
  padding: 16px;
}

.formula-step-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  padding: 6px 0;
  border-bottom: 1px dashed var(--color-border-light);
}

.formula-step-row:last-child {
  border-bottom: none;
}

/* Disclaimer & Assessment CTA */
.calc-disclaimer-box {
  background: rgba(245, 130, 32, 0.08);
  border-left: 3px solid var(--color-secondary);
  padding: 12px 16px;
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
  margin-bottom: 24px;
}

.calc-disclaimer-box p {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  line-height: 1.45;
  margin: 0;
}

.calc-action-row {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 14px;
}