/* HVAC Calculator Standalone CSS - WordPress Plugin */
/* Matches the working React demo exactly */

/* Google Fonts - Inter */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* CSS Variables for theming */
:root {
  --hvac-primary: #3b82f6;
  --hvac-primary-hover: #2563eb;
  --hvac-success: #22c55e;
  --hvac-warning: #f59e0b;
  --hvac-background: #ffffff;
  --hvac-surface: #f8fafc;
  --hvac-card-background: #ffffff;
  --hvac-text-primary: #111827;
  --hvac-text-secondary: #6b7280;
  --hvac-text-muted: #9ca3af;
  --hvac-border: #e5e7eb;
  --hvac-border-radius: 0.5rem;
  --hvac-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Base styles */
.hvac-calculator-container {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif !important;
  line-height: 1.5;
  color: var(--hvac-text-primary);
  background-color: var(--hvac-background);
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
  opacity: 1 !important;
  visibility: visible !important;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

.hvac-calculator-container * {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif !important;
  box-sizing: border-box;
}

/* Header */
.hvac-calculator-header {
  text-align: center;
  margin-bottom: 3rem;
}

.hvac-calculator-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  background-color: var(--hvac-primary);
  border-radius: 50%;
  margin-bottom: 1rem;
  color: white;
}

.hvac-calculator-header h1 {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--hvac-text-primary);
  margin: 0 0 0.75rem 0;
}

.hvac-calculator-header p {
  font-size: 1.125rem;
  color: var(--hvac-text-secondary);
  max-width: 42rem;
  margin: 0 auto;
}

/* Grid layout */
.hvac-calculator-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}

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

/* Form section */
.hvac-calculator-form-section,
.hvac-calculator-results-section {
  background: var(--hvac-card-background);
  border: 1px solid var(--hvac-border);
  border-radius: var(--hvac-border-radius);
  padding: 2rem;
  box-shadow: var(--hvac-shadow);
}

.hvac-calculator-form-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.hvac-calculator-form-header h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--hvac-text-primary);
  margin: 0;
}

.hvac-calculator-form-header svg {
  color: var(--hvac-primary);
}

/* Form styles */
.hvac-form-group {
  margin-bottom: 1.5rem;
}

.hvac-form-group label {
  display: flex;
  align-items: center;
  font-weight: 500;
  color: var(--hvac-text-primary);
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}

.hvac-form-group input,
.hvac-form-group select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--hvac-border);
  border-radius: var(--hvac-border-radius);
  background: var(--hvac-surface);
  color: var(--hvac-text-primary);
  font-size: 0.875rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.hvac-form-group input:focus,
.hvac-form-group select:focus {
  outline: none;
  border-color: var(--hvac-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.hvac-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

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

.hvac-radio-group {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0.75rem;
}

.hvac-radio-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem;
  border: 1px solid var(--hvac-border);
  border-radius: var(--hvac-border-radius);
  cursor: pointer;
  transition: background-color 0.2s;
  font-weight: 400;
}

.hvac-radio-option:hover {
  background-color: var(--hvac-surface);
}

.hvac-radio-option input[type="radio"] {
  width: auto;
  margin: 0;
}

.hvac-section {
  margin: 1.5rem 0;
  padding: 1.5rem;
  background: var(--hvac-surface);
  border-radius: var(--hvac-border-radius);
}

.hvac-section h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--hvac-text-primary);
  margin: 0 0 1rem 0;
}

/* Tooltips */
.hvac-tooltip {
  display: inline-flex;
  align-items: center;
  margin-left: 0.5rem;
  cursor: help;
  color: var(--hvac-text-muted);
}

.hvac-tooltip-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  background: var(--hvac-text-muted);
  color: white;
  border-radius: 50%;
  font-size: 10px;
  font-weight: bold;
  line-height: 1;
}

.hvac-tooltip-popup {
  position: absolute;
  background: var(--hvac-text-primary);
  color: white;
  padding: 0.5rem 0.75rem;
  border-radius: var(--hvac-border-radius);
  font-size: 0.75rem;
  max-width: 200px;
  z-index: 1000;
  line-height: 1.4;
}

/* Location display */
.hvac-location-display {
  margin-top: 0.5rem;
}

.hvac-location-found {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: #f0fdf4;
  color: #166534;
  border: 1px solid #bbf7d0;
  border-radius: var(--hvac-border-radius);
  font-size: 0.75rem;
}

.hvac-location-error {
  color: #dc2626;
  font-size: 0.75rem;
}

.hvac-location-loading {
  color: #6b7280;
  font-size: 0.75rem;
  font-style: italic;
}

/* Calculate button */
.hvac-calculate-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 1rem 1.5rem;
  background: var(--hvac-primary);
  color: white;
  border: none;
  border-radius: var(--hvac-border-radius);
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: background-color 0.2s;
}

.hvac-calculate-button:hover {
  background: var(--hvac-primary-hover);
}

/* Results section */
.hvac-results-empty {
  text-align: center;
  padding: 3rem 1rem;
}

.hvac-results-empty-icon {
  width: 6rem;
  height: 6rem;
  background: #f3f4f6;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  color: #9ca3af;
}

.hvac-results-empty h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--hvac-text-primary);
  margin: 0 0 0.75rem 0;
}

.hvac-results-empty p {
  color: var(--hvac-text-secondary);
  margin-bottom: 1.5rem;
}

.hvac-preview-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.hvac-preview-card {
  background: #f9fafb;
  padding: 1rem;
  border-radius: var(--hvac-border-radius);
}

.hvac-preview-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: #d1d5db;
}

.hvac-preview-label {
  font-size: 0.875rem;
  color: #6b7280;
}

/* Results display */
.hvac-results-header {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.hvac-results-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--hvac-text-primary);
  margin: 0;
  text-align: center;
}

.hvac-savings-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

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

.hvac-savings-card {
  padding: 1.5rem;
  border-radius: var(--hvac-border-radius);
  color: white;
}

.hvac-savings-success {
  background: linear-gradient(135deg, var(--hvac-success) 0%, #16a34a 100%);
}

.hvac-savings-primary {
  background: linear-gradient(135deg, var(--hvac-primary) 0%, var(--hvac-primary-hover) 100%);
}

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

.hvac-savings-card-header h4 {
  font-weight: 500;
  margin: 0;
  font-size: 0.875rem;
}

.hvac-savings-card-header svg {
  opacity: 0.8;
}

.hvac-savings-amount {
  font-size: 1.875rem;
  font-weight: 700;
  margin: 0.5rem 0 0.25rem 0;
}

.hvac-savings-period {
  font-size: 0.875rem;
  opacity: 0.8;
}

/* Results sections */
.hvac-results-section {
  background: #f8fafc;
  border: 1px solid var(--hvac-border);
  border-radius: var(--hvac-border-radius);
  padding: 1.5rem;
  margin-bottom: 1rem;
}

/* Feature list styling for understanding sections */
.hvac-feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  text-align: left;
}

.hvac-feature-list li {
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  color: var(--hvac-text-secondary);
  line-height: 1.4;
}

.hvac-results-section h4 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--hvac-text-primary);
  margin: 0 0 1rem 0;
  font-size: 1rem;
}

.hvac-roi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
}

.hvac-roi-item {
  text-align: center;
}

.hvac-roi-value {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.hvac-roi-orange { color: #ea580c; }
.hvac-roi-green { color: #16a34a; }
.hvac-roi-blue { color: #2563eb; }

.hvac-roi-label {
  font-size: 0.875rem;
  color: var(--hvac-text-secondary);
}

.hvac-energy-display {
  text-align: center;
}

.hvac-energy-amount {
  font-size: 1.875rem;
  font-weight: 700;
  color: #2563eb;
}

.hvac-energy-unit {
  font-size: 0.875rem;
  color: var(--hvac-text-secondary);
  margin-top: 0.25rem;
}

.hvac-environmental-section {
  background: #f0fdf4 !important;
  border-color: #bbf7d0 !important;
}

.hvac-environmental-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

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

.hvac-environmental-item {
  text-align: center;
}

.hvac-environmental-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: #16a34a;
}

.hvac-environmental-label {
  font-size: 0.875rem;
  color: #166534;
}

.hvac-environmental-summary {
  text-align: center;
  font-size: 0.875rem;
  color: #166534;
  margin: 0;
}

.hvac-understanding-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.hvac-understanding-list li {
  margin-bottom: 0.5rem;
  padding-left: 1.5rem;
  position: relative;
  font-size: 0.875rem;
  color: var(--hvac-text-secondary);
  line-height: 1.5;
}

.hvac-understanding-list li::before {
  content: "•";
  color: var(--hvac-primary);
  font-weight: bold;
  position: absolute;
  left: 0;
}

.hvac-rate-info {
  background: #eff6ff !important;
  border-color: #bfdbfe !important;
}

.hvac-rate-info p {
  font-size: 0.875rem;
  color: #1e40af;
  margin: 0;
  line-height: 1.5;
}

.hvac-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

@media (max-width: 640px) {
  .hvac-actions {
    flex-direction: column;
  }
}

.hvac-action-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex: 1;
  padding: 0.75rem 1rem;
  background: var(--hvac-primary);
  color: white;
  border: none;
  border-radius: var(--hvac-border-radius);
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: background-color 0.2s;
}

.hvac-action-button:hover {
  background: var(--hvac-primary-hover);
}

.hvac-action-secondary {
  background: var(--hvac-surface);
  color: var(--hvac-text-primary);
  border: 1px solid var(--hvac-border);
}

.hvac-action-secondary:hover {
  background: #e2e8f0;
}

/* Data source section */
.hvac-data-source-section {
  background: linear-gradient(to right, #f0f9ff, #f0fdf4);
  border: 1px solid #bfdbfe;
  border-left: 4px solid var(--hvac-primary);
  border-radius: var(--hvac-border-radius);
  padding: 2rem;
  margin-top: 2rem;
}

.hvac-data-source-section h3 {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--hvac-text-primary);
  margin: 0 0 1.5rem 0;
}

.hvac-data-source-section h3 svg {
  color: var(--hvac-primary);
}

.hvac-data-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

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

.hvac-feature-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 0.75rem;
  color: white;
}

.hvac-feature-blue { background: #2563eb; }
.hvac-feature-green { background: #16a34a; }
.hvac-feature-orange { background: #ea580c; }

.hvac-feature h4 {
  font-weight: 600;
  color: var(--hvac-text-primary);
  margin: 0 0 0.5rem 0;
  font-size: 1rem;
}

.hvac-feature p {
  font-size: 0.875rem;
  color: var(--hvac-text-secondary);
  margin: 0;
  line-height: 1.5;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .hvac-calculator-container {
    padding: 1rem 0.5rem;
    font-size: 16px;
    min-height: 100vh;
    opacity: 1;
    visibility: visible;
  }
  
  /* Ensure calculator loads immediately on mobile */
  .hvac-calculator-app {
    opacity: 1 !important;
    visibility: visible !important;
    display: block !important;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
  }
  
  /* Force all calculator components to be visible */
  .hvac-calculator-header,
  .hvac-calculator-main,
  .hvac-calculator-form-section,
  .hvac-calculator-results-section {
    opacity: 1 !important;
    visibility: visible !important;
    display: block !important;
  }
  
  .hvac-calculator-header h1 {
    font-size: 2rem;
  }
  
  .hvac-calculator-header p {
    font-size: 1.125rem;
  }
  
  .hvac-calculator-form-section,
  .hvac-calculator-results-section {
    padding: 1.5rem;
  }
  
  /* Form inputs and labels */
  .hvac-form-group label {
    font-size: 1rem;
    font-weight: 600;
  }
  
  .hvac-form-group input,
  .hvac-form-group select {
    font-size: 18px;
    padding: 12px 16px;
  }
  
  .hvac-form-tooltip {
    font-size: 15px;
  }
  
  .hvac-calculate-btn {
    font-size: 18px;
    padding: 16px 24px;
  }
  
  .hvac-calculate-button {
    font-size: 16px;
    padding: 14px 20px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  
  /* Results display */
  .hvac-results-section h3 {
    font-size: 1.25rem;
  }
  
  .hvac-savings-display .hvac-savings-amount {
    font-size: 1.75rem;
  }
  
  .hvac-savings-display .hvac-savings-label {
    font-size: 1rem;
  }
  
  .hvac-efficiency-gain {
    font-size: 1rem;
  }
  
  /* Understanding sections */
  .hvac-understanding-section h4 {
    font-size: 1.125rem;
  }
  
  .hvac-understanding-section p,
  .hvac-understanding-section li {
    font-size: 1rem;
    line-height: 1.6;
  }
  
  /* Feature cards */
  .hvac-feature h4 {
    font-size: 1.125rem;
  }
  
  .hvac-feature p {
    font-size: 1rem;
  }
}