/* ===================================
   ENHANCED COST CALCULATOR - CACHEE.AI
   With Provider Selection & Performance Metrics
   =================================== */

/* ===================================
   CSS VARIABLES
   =================================== */
:root {
  /* Colors */
  --primary: #667eea;
  --accent: #00D084;
  --bg-primary: #0a0a0a;
  --bg-secondary: #141414;
  --bg-tertiary: #1a1a1a;
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.8);
  --text-tertiary: rgba(255, 255, 255, 0.6);
  --border-color: rgba(255, 255, 255, 0.1);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

/* ===================================
   CALCULATOR CONTAINER
   =================================== */
.cost-calculator-enhanced {
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  border: 2px solid var(--border-color);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.calculator-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.calculator-header h2 {
  font-size: 2.5rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-md);
}

.calculator-header p {
  color: var(--text-secondary);
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ===================================
   INPUT SECTION
   =================================== */
.calculator-inputs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.input-group label {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.input-group label span {
  font-size: 1.25rem;
}

/* Custom Select Dropdown */
.custom-select-wrapper {
  position: relative;
  width: 100%;
}

.custom-select {
  position: relative;
  width: 100%;
  cursor: pointer;
  user-select: none;
}

.custom-select-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-tertiary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.custom-select:hover .custom-select-trigger {
  border-color: var(--primary);
  background-color: rgba(102, 126, 234, 0.1);
}

.custom-select.open .custom-select-trigger {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 208, 132, 0.2);
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

.selected-provider {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.provider-logo {
  font-size: 1.5rem;
  line-height: 1;
}

.provider-name {
  font-weight: 600;
  color: var(--text-primary);
}

.select-arrow {
  font-size: 0.75rem;
  color: var(--text-secondary);
  transition: transform 0.3s ease;
}

.custom-select.open .select-arrow {
  transform: rotate(180deg);
}

/* Custom Options */
.custom-options {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-tertiary);
  border: 2px solid var(--accent);
  border-top: none;
  border-bottom-left-radius: var(--radius-md);
  border-bottom-right-radius: var(--radius-md);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 100;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

.custom-select.open .custom-options {
  max-height: 400px;
  opacity: 1;
  overflow-y: auto;
}

.custom-option {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  cursor: pointer;
  transition: all 0.2s ease;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.custom-option:last-child {
  border-bottom: none;
}

.custom-option:hover {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.2), rgba(0, 208, 132, 0.2));
  padding-left: calc(var(--space-lg) + 0.5rem);
}

.custom-option:active {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.3), rgba(0, 208, 132, 0.3));
}

/* Slider Container */
.slider-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.slider-value {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.slider-value .value {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--accent);
  font-family: 'SF Mono', 'Monaco', monospace;
}

.slider-value .subtitle {
  font-size: 0.875rem;
  color: var(--text-tertiary);
}

/* Slider Input */
.slider-input {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: linear-gradient(to right, var(--primary), var(--accent));
  outline: none;
  opacity: 0.8;
  transition: opacity 0.3s ease;
  -webkit-appearance: none;
  appearance: none;
}

.slider-input:hover {
  opacity: 1;
}

.slider-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(0, 208, 132, 0.5);
  transition: transform 0.2s ease;
}

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

.slider-input::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 10px rgba(0, 208, 132, 0.5);
  transition: transform 0.2s ease;
}

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

.slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin-top: var(--space-xs);
}

/* ===================================
   COMPARISON SECTION
   =================================== */
.calculator-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.comparison-column {
  background: var(--bg-tertiary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all 0.3s ease;
}

.comparison-column.current-provider {
  border-color: rgba(255, 255, 255, 0.2);
}

.comparison-column.cachee {
  border-color: var(--accent);
  background: linear-gradient(135deg, rgba(0, 208, 132, 0.05), rgba(102, 126, 234, 0.05));
  box-shadow: 0 8px 32px rgba(0, 208, 132, 0.2);
}

.comparison-column:hover {
  transform: translateY(-4px);
}

.column-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 2px solid var(--border-color);
}

.column-header h3 {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.column-header .logo {
  font-size: 2rem;
}

.provider-badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.cachee .provider-badge {
  background: var(--accent);
  color: var(--bg-primary);
}

/* Cost Display */
.cost-display {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.cost-label {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  margin-bottom: var(--space-sm);
}

.cost-amount {
  font-size: 3rem;
  font-weight: 900;
  color: var(--text-primary);
  font-family: 'SF Mono', 'Monaco', monospace;
  line-height: 1;
}

.cachee .cost-amount {
  color: var(--accent);
}

.cost-period {
  font-size: 1rem;
  color: var(--text-tertiary);
  margin-top: var(--space-sm);
}

/* Cost Breakdown */
.cost-breakdown {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.breakdown-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.breakdown-item:last-child {
  border-bottom: none;
}

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

.breakdown-value {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
  font-family: 'SF Mono', 'Monaco', monospace;
}

/* ===================================
   PERFORMANCE METRICS SECTION
   =================================== */
.performance-section {
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-2xl);
  border: 2px solid var(--border-color);
}

.performance-section h3 {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  text-align: center;
}

.performance-section .subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: var(--space-xl);
}

.performance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
}

.performance-metric {
  background: var(--bg-tertiary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  text-align: center;
  transition: all 0.3s ease;
}

.performance-metric:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.metric-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  margin-bottom: var(--space-sm);
}

.metric-comparison {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-sm);
}

.metric-value {
  font-size: 1.25rem;
  font-weight: 700;
  font-family: 'SF Mono', 'Monaco', monospace;
}

.metric-value.current {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: line-through;
}

.metric-value.cachee {
  color: var(--accent);
  font-size: 1.5rem;
}

.metric-arrow {
  font-size: 1.5rem;
  color: var(--accent);
}

.metric-improvement {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: linear-gradient(135deg, rgba(0, 208, 132, 0.2), rgba(102, 126, 234, 0.2));
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.metric-improvement.positive::before {
  content: '↑ ';
}

.metric-improvement.negative::before {
  content: '↓ ';
}

/* ===================================
   SAVINGS SUMMARY
   =================================== */
.savings-summary {
  background: linear-gradient(135deg, rgba(0, 208, 132, 0.1), rgba(102, 126, 234, 0.1));
  border: 2px solid var(--accent);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.savings-summary h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.savings-amount {
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--accent);
  font-family: 'SF Mono', 'Monaco', monospace;
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.savings-percent {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}

.savings-details {
  display: flex;
  justify-content: center;
  gap: var(--space-2xl);
  flex-wrap: wrap;
}

.savings-detail {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.savings-detail-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
}

.savings-detail-value {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--text-primary);
  font-family: 'SF Mono', 'Monaco', monospace;
}

/* ===================================
   DISCLAIMER
   =================================== */
.calculator-disclaimer {
  background: rgba(255, 193, 7, 0.1);
  border: 2px solid rgba(255, 193, 7, 0.3);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.calculator-disclaimer .icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.calculator-disclaimer .content {
  flex: 1;
}

.calculator-disclaimer .title {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #ffc107;
  margin-bottom: var(--space-xs);
}

.calculator-disclaimer .text {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===================================
   CTA BUTTON
   =================================== */
.calculator-cta {
  text-align: center;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-lg) var(--space-2xl);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  font-size: 1.125rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(0, 208, 132, 0.4);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(0, 208, 132, 0.6);
}

.cta-button:active {
  transform: translateY(0);
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 968px) {
  .cost-calculator-enhanced {
    padding: var(--space-xl);
  }

  .calculator-header h2 {
    font-size: 2rem;
  }

  .calculator-comparison {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .comparison-column {
    padding: var(--space-lg);
  }

  .cost-amount {
    font-size: 2.5rem;
  }

  .savings-amount {
    font-size: 2.5rem;
  }

  .savings-details {
    gap: var(--space-lg);
  }

  .performance-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-md);
  }
}

@media (max-width: 640px) {
  .cost-calculator-enhanced {
    padding: var(--space-lg);
  }

  .calculator-header h2 {
    font-size: 1.5rem;
  }

  .calculator-header p {
    font-size: 1rem;
  }

  .calculator-inputs {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .comparison-column {
    padding: var(--space-md);
  }

  .column-header h3 {
    font-size: 1.25rem;
  }

  .cost-amount {
    font-size: 2rem;
  }

  .savings-amount {
    font-size: 2rem;
  }

  .savings-summary {
    padding: var(--space-lg);
  }

  .savings-details {
    flex-direction: column;
    gap: var(--space-md);
  }

  .performance-section {
    padding: var(--space-md);
  }

  .performance-grid {
    grid-template-columns: 1fr;
  }

  .cta-button {
    width: 100%;
    justify-content: center;
  }
}

/* ===================================
   ANIMATIONS
   =================================== */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
}

.cost-amount,
.savings-amount {
  animation: pulse 2s ease-in-out infinite;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.comparison-column,
.performance-metric {
  animation: slideIn 0.5s ease-out;
}

/* ===================================
   ACCESSIBILITY
   =================================== */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (prefers-contrast: high) {
  .comparison-column,
  .performance-metric,
  .calculator-disclaimer {
    border-width: 3px;
  }

  .cta-button {
    border: 2px solid white;
  }
}

/* Focus styles for keyboard navigation */
.provider-select:focus,
.slider-input:focus,
.cta-button:focus {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}