/* ==========================================================================
   SolarPrice.Asia - Components & Interactive UI Styles
   Calculators, Tables, Gauges, Accordions, Forms, Filters
   ========================================================================== */

/* Calculator Card & Form Grid */
.calculator-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-lg);
  margin-bottom: 3rem;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
}

.calc-section-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--primary-light);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Form Controls */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.form-helper {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9375rem;
  font-family: inherit;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
  background: var(--bg-card);
}

.input-addon-group {
  display: flex;
  align-items: stretch;
}

.input-addon {
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-color);
  border-right: none;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  font-weight: 600;
  color: var(--text-muted);
  border-top-left-radius: var(--radius-md);
  border-bottom-left-radius: var(--radius-md);
}

.input-addon-group .form-control {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

/* Appliance List Selector */
.appliance-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
}

.appliance-table th {
  text-align: left;
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0.6rem 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.appliance-table td {
  padding: 0.75rem 0.5rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.875rem;
  vertical-align: middle;
}

.qty-control {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-surface-alt);
}

.qty-btn {
  width: 30px;
  height: 30px;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.qty-btn:hover {
  background: var(--border-color);
}

.qty-input {
  width: 38px;
  text-align: center;
  border: none;
  background: transparent;
  font-weight: 600;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

/* Range Slider */
.slider-group {
  margin-bottom: 1.5rem;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.slider-val-badge {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.range-slider {
  width: 100%;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--border-color);
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--solar-amber);
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
  transition: transform 0.1s ease;
}

.range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

/* Results Panel */
.results-card {
  background: linear-gradient(145deg, var(--bg-surface-alt), var(--bg-card));
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.result-main-highlight {
  text-align: center;
  padding: 1.5rem 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.result-main-highlight .system-kw {
  font-size: 3rem;
  font-weight: 800;
  color: var(--solar-amber-dark);
  font-family: var(--font-mono);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.result-grid-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.metric-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  flex-direction: column;
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}

.metric-val {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.metric-sub {
  font-size: 0.7rem;
  color: var(--tech-emerald);
  margin-top: 0.2rem;
}

/* Equipment Comparison Filter & Table */
.comparator-filter-bar {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  background: var(--bg-surface-alt);
  color: var(--text-secondary);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* Comparison Table */
.table-responsive {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
  margin-bottom: 2rem;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}

.data-table th {
  background: var(--bg-surface-alt);
  color: var(--text-primary);
  font-weight: 700;
  padding: 1rem 0.85rem;
  border-bottom: 2px solid var(--border-color);
  white-space: nowrap;
}

.data-table td {
  padding: 1rem 0.85rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
  vertical-align: middle;
}

.data-table tr:hover td {
  background: var(--bg-surface-alt);
}

.data-table .brand-col {
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.data-table .price-val {
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--primary);
}

/* Accordion FAQs */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 3rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-header {
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 600;
  color: var(--text-primary);
  user-select: none;
}

.faq-header:hover {
  color: var(--primary);
  background: var(--bg-surface-alt);
}

.faq-icon {
  transition: transform var(--transition-fast);
}

.faq-item.open .faq-icon {
  transform: rotate(180deg);
}

.faq-body {
  padding: 0 1.5rem 1.25rem;
  display: none;
  color: var(--text-secondary);
  line-height: 1.7;
}

.faq-item.open .faq-body {
  display: block;
}

/* Country Selector Modal */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  padding: 1rem;
}

.modal-backdrop.active {
  display: flex;
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: 600px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 2rem;
  box-shadow: var(--shadow-xl);
  position: relative;
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
}

.modal-close-btn:hover {
  color: var(--text-primary);
}

.country-modal-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.country-select-option {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-surface-alt);
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-primary);
  text-decoration: none;
}

.country-select-option:hover, .country-select-option.selected {
  border-color: var(--primary);
  background: var(--primary-light);
}

/* Cookie Consent Bar */
.cookie-banner {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  max-width: 750px;
  width: calc(100% - 2rem);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.75rem;
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  z-index: 1500;
  display: none;
}

.cookie-banner.show {
  display: flex;
}

.cookie-text {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.cookie-actions {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}