/**
 * Village Pricing Calculator Styles
 * Mobile-first responsive design
 *
 * Breakpoints:
 * - Mobile: < 640px (default)
 * - Tablet: >= 640px (sm)
 * - Desktop: >= 768px (md)
 * - Large: >= 1024px (lg)
 *
 * @version 1.0.0
 * @date 2025-12-01
 */

/* ============================================================================
   CSS VARIABLES
   ============================================================================ */

:root {
  /* Calculator colors */
  --calc-primary: #14b8a6;
  --calc-primary-dark: #0d9488;
  --calc-primary-light: #5eead4;
  --calc-highlight: #f59e0b;
  --calc-highlight-bg: #fef3c7;
  --calc-success: #10b981;
  --calc-savings: #059669;

  /* Surface colors */
  --calc-bg: #ffffff;
  --calc-bg-secondary: #f9fafb;
  --calc-bg-elevated: #ffffff;
  --calc-border: #e5e7eb;
  --calc-border-focus: #14b8a6;

  /* Text colors */
  --calc-text: #111827;
  --calc-text-secondary: #6b7280;
  --calc-text-muted: #9ca3af;

  /* Competitor colors */
  --calc-slack: #4a154b;
  --calc-teams: #5059c9;
  --calc-mighty: #6366f1;

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

  /* Typography */
  --calc-font-sm: 0.875rem;
  --calc-font-base: 1rem;
  --calc-font-lg: 1.125rem;
  --calc-font-xl: 1.25rem;
  --calc-font-2xl: 1.5rem;
  --calc-font-3xl: 2rem;

  /* Touch targets */
  --calc-touch-min: 44px;
  --calc-touch-preferred: 48px;

  /* Border radius */
  --calc-radius-sm: 4px;
  --calc-radius-md: 8px;
  --calc-radius-lg: 12px;
  --calc-radius-xl: 16px;

  /* Shadows */
  --calc-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --calc-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --calc-shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

/* ============================================================================
   BASE CALCULATOR WIDGET
   ============================================================================ */

.calculator-widget {
  background: var(--calc-bg);
  border-radius: var(--calc-radius-lg);
  border: 1px solid var(--calc-border);
  box-shadow: var(--calc-shadow-md);
  overflow: hidden;
}

/* ============================================================================
   CALCULATOR HEADER
   ============================================================================ */

.calculator-header {
  padding: var(--calc-space-lg);
  text-align: center;
  background: linear-gradient(135deg, var(--calc-primary) 0%, var(--calc-primary-dark) 100%);
  color: white;
}

.calculator-header h2,
.calculator-header h3 {
  margin: 0 0 var(--calc-space-sm) 0;
  font-weight: 700;
  color: white;
}

.calculator-header h2 {
  font-size: var(--calc-font-xl);
}

.calculator-header h3 {
  font-size: var(--calc-font-lg);
}

.calculator-header p {
  margin: 0;
  opacity: 0.9;
  font-size: var(--calc-font-sm);
}

/* ============================================================================
   TEASER MODE (Landing Page)
   ============================================================================ */

.calculator-teaser {
  max-width: 100%;
}

.calculator-teaser-content {
  padding: var(--calc-space-lg);
}

.calculator-teaser-results {
  background: var(--calc-bg-secondary);
  border-radius: var(--calc-radius-md);
  padding: var(--calc-space-lg);
  margin: var(--calc-space-lg) 0;
}

.teaser-result-row {
  display: flex;
  flex-direction: column;
  gap: var(--calc-space-md);
}

.teaser-result-item {
  text-align: center;
  padding: var(--calc-space-md);
  border-radius: var(--calc-radius-md);
  background: var(--calc-bg);
}

.teaser-result-highlight {
  background: var(--calc-highlight-bg);
  border: 2px solid var(--calc-highlight);
}

.teaser-result-label {
  font-size: var(--calc-font-sm);
  color: var(--calc-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--calc-space-xs);
}

.teaser-result-value {
  font-size: var(--calc-font-2xl);
  font-weight: 700;
  color: var(--calc-text);
  line-height: 1.2;
}

.teaser-result-value.highlight {
  color: var(--calc-highlight);
}

.teaser-result-value .period {
  font-size: var(--calc-font-base);
  font-weight: 400;
  color: var(--calc-text-secondary);
}

.teaser-result-tier {
  font-size: var(--calc-font-sm);
  color: var(--calc-text-muted);
  margin-top: var(--calc-space-xs);
}

.teaser-result-context {
  font-size: var(--calc-font-sm);
  color: var(--calc-success);
  font-weight: 500;
  margin-top: var(--calc-space-xs);
}

.teaser-savings {
  text-align: center;
  padding: var(--calc-space-md);
  margin-top: var(--calc-space-md);
  background: linear-gradient(135deg, var(--calc-savings) 0%, #047857 100%);
  color: white;
  border-radius: var(--calc-radius-md);
  font-size: var(--calc-font-sm);
}

.teaser-savings strong {
  font-size: var(--calc-font-lg);
  display: block;
  margin: var(--calc-space-xs) 0;
}

/* Storage breakdown in teaser */
.teaser-storage-breakdown {
  text-align: center;
  padding: var(--calc-space-md);
  margin-top: var(--calc-space-md);
  background: var(--calc-bg);
  border: 1px solid var(--calc-border);
  border-radius: var(--calc-radius-md);
  font-size: var(--calc-font-sm);
  color: var(--calc-text-secondary);
}

.teaser-storage-breakdown strong {
  color: var(--calc-primary-dark);
  font-size: var(--calc-font-base);
}

.teaser-storage-breakdown .storage-detail {
  display: block;
  font-size: var(--calc-font-sm);
  color: var(--calc-text-muted);
  margin-top: var(--calc-space-xs);
}

/* Calculator disclaimer */
.calculator-disclaimer {
  text-align: center;
  padding: var(--calc-space-md);
  margin-top: var(--calc-space-md);
  font-size: var(--calc-font-sm);
  color: var(--calc-text-muted);
  font-style: italic;
  border-top: 1px solid var(--calc-border);
}

/* Storage rate hint */
.calculator-storage-rate {
  color: var(--calc-primary-dark);
  font-weight: 500;
}

.calculator-teaser-cta {
  padding: 0 var(--calc-space-lg) var(--calc-space-lg);
  text-align: center;
}

.calculator-teaser-cta .btn {
  width: 100%;
  min-height: var(--calc-touch-preferred);
}

/* ============================================================================
   FULL MODE (Pricing Page)
   ============================================================================ */

.calculator-full {
  max-width: 100%;
}

.calculator-full .calculator-header h2 {
  font-size: var(--calc-font-2xl);
}

.calculator-body {
  display: flex;
  flex-direction: column;
}

.calculator-inputs {
  padding: var(--calc-space-lg);
  border-bottom: 1px solid var(--calc-border);
}

.calculator-section {
  margin-bottom: var(--calc-space-xl);
}

.calculator-section:last-child {
  margin-bottom: 0;
}

.calculator-section h4 {
  font-size: var(--calc-font-lg);
  font-weight: 600;
  color: var(--calc-text);
  margin: 0 0 var(--calc-space-lg) 0;
  padding-bottom: var(--calc-space-sm);
  border-bottom: 2px solid var(--calc-primary-light);
}

/* ============================================================================
   INPUT GROUPS
   ============================================================================ */

.calculator-input-group {
  margin-bottom: var(--calc-space-lg);
}

.calculator-input-group:last-child {
  margin-bottom: 0;
}

.calculator-input-group label {
  display: flex;
  align-items: center;
  gap: var(--calc-space-sm);
  font-weight: 500;
  color: var(--calc-text);
  margin-bottom: var(--calc-space-sm);
  font-size: var(--calc-font-base);
}

.input-icon {
  font-size: var(--calc-font-xl);
}

.input-hint {
  display: block;
  font-size: var(--calc-font-sm);
  color: var(--calc-text-muted);
  margin-top: var(--calc-space-xs);
}

/* ============================================================================
   FORM CONTROLS - MOBILE OPTIMIZED
   ============================================================================ */

.calculator-select,
.calculator-input {
  width: 100%;
  min-height: var(--calc-touch-preferred);
  padding: var(--calc-space-md);
  font-size: var(--calc-font-base);
  border: 2px solid var(--calc-border);
  border-radius: var(--calc-radius-md);
  background: var(--calc-bg);
  color: var(--calc-text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
}

.calculator-select:focus,
.calculator-input:focus {
  outline: none;
  border-color: var(--calc-border-focus);
  box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.15);
}

.calculator-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%236b7280'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 20px;
  padding-right: 44px;
  cursor: pointer;
}

.calculator-input {
  font-variant-numeric: tabular-nums;
}

.calculator-input::-webkit-inner-spin-button,
.calculator-input::-webkit-outer-spin-button {
  height: var(--calc-touch-min);
  opacity: 1;
}

/* ============================================================================
   SLIDER - TOUCH OPTIMIZED
   ============================================================================ */

.calculator-slider-container {
  display: flex;
  flex-direction: column;
  gap: var(--calc-space-sm);
}

.calculator-slider {
  width: 100%;
  height: var(--calc-touch-min);
  padding: var(--calc-space-md) 0;
  background: transparent;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

/* Slider track */
.calculator-slider::-webkit-slider-runnable-track {
  width: 100%;
  height: 8px;
  background: linear-gradient(to right, var(--calc-primary-light), var(--calc-primary));
  border-radius: 4px;
}

.calculator-slider::-moz-range-track {
  width: 100%;
  height: 8px;
  background: linear-gradient(to right, var(--calc-primary-light), var(--calc-primary));
  border-radius: 4px;
}

/* Slider thumb - Large for touch */
.calculator-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 32px;
  height: 32px;
  background: var(--calc-primary);
  border: 4px solid white;
  border-radius: 50%;
  margin-top: -12px;
  box-shadow: var(--calc-shadow-md);
  cursor: grab;
  transition: transform 0.15s ease;
}

.calculator-slider::-moz-range-thumb {
  width: 32px;
  height: 32px;
  background: var(--calc-primary);
  border: 4px solid white;
  border-radius: 50%;
  box-shadow: var(--calc-shadow-md);
  cursor: grab;
  transition: transform 0.15s ease;
}

.calculator-slider:active::-webkit-slider-thumb {
  transform: scale(1.1);
  cursor: grabbing;
}

.calculator-slider:active::-moz-range-thumb {
  transform: scale(1.1);
  cursor: grabbing;
}

.calculator-slider:focus {
  outline: none;
}

.calculator-slider:focus::-webkit-slider-thumb {
  box-shadow: var(--calc-shadow-md), 0 0 0 4px rgba(20, 184, 166, 0.2);
}

.calculator-slider-value {
  text-align: center;
  font-size: var(--calc-font-lg);
  font-weight: 600;
  color: var(--calc-primary-dark);
  background: var(--calc-bg-secondary);
  padding: var(--calc-space-sm) var(--calc-space-md);
  border-radius: var(--calc-radius-md);
}

.calculator-slider-value span {
  font-size: var(--calc-font-2xl);
  color: var(--calc-primary);
}

/* ============================================================================
   STORAGE ESTIMATE
   ============================================================================ */

.calculator-storage-estimate {
  background: var(--calc-bg-secondary);
  border-radius: var(--calc-radius-md);
  padding: var(--calc-space-lg);
  margin-top: var(--calc-space-lg);
  border: 1px solid var(--calc-border);
}

.storage-estimate-display {
  display: flex;
  align-items: center;
  gap: var(--calc-space-sm);
  font-size: var(--calc-font-lg);
  font-weight: 600;
  color: var(--calc-text);
  margin-bottom: var(--calc-space-sm);
}

.storage-icon {
  font-size: var(--calc-font-xl);
}

.storage-amount {
  font-variant-numeric: tabular-nums;
}

.storage-recommendation {
  display: flex;
  align-items: center;
  gap: var(--calc-space-sm);
  color: var(--calc-success);
  font-weight: 500;
  margin-bottom: var(--calc-space-sm);
}

.storage-recommendation .checkmark {
  font-size: var(--calc-font-lg);
}

.storage-context {
  font-size: var(--calc-font-sm);
  color: var(--calc-text-secondary);
}

/* ============================================================================
   RESULTS PANEL
   ============================================================================ */

.calculator-results-panel {
  padding: var(--calc-space-lg);
  background: var(--calc-bg-secondary);
}

.calculator-results {
  margin-bottom: var(--calc-space-lg);
}

.result-cards {
  display: flex;
  flex-direction: column;
  gap: var(--calc-space-md);
}

.result-card {
  background: var(--calc-bg);
  border-radius: var(--calc-radius-md);
  padding: var(--calc-space-lg);
  text-align: center;
  border: 2px solid var(--calc-border);
}

.result-card-highlight {
  border-color: var(--calc-highlight);
  background: var(--calc-highlight-bg);
}

.result-card-label {
  font-size: var(--calc-font-sm);
  color: var(--calc-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--calc-space-xs);
}

.result-card-value {
  font-size: var(--calc-font-3xl);
  font-weight: 700;
  color: var(--calc-text);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.result-card-value.highlight {
  color: var(--calc-highlight);
}

.result-card-value .period {
  font-size: var(--calc-font-base);
  font-weight: 400;
  color: var(--calc-text-secondary);
}

.result-card-detail {
  font-size: var(--calc-font-sm);
  color: var(--calc-text-secondary);
  margin-top: var(--calc-space-sm);
}

.result-card-highlight .result-card-detail {
  color: var(--calc-success);
  font-weight: 500;
}

/* Result Features */
.result-features {
  background: var(--calc-bg);
  border-radius: var(--calc-radius-md);
  padding: var(--calc-space-md);
  margin-top: var(--calc-space-md);
  border: 1px solid var(--calc-border);
}

.result-features-label {
  font-size: var(--calc-font-sm);
  font-weight: 600;
  color: var(--calc-text-secondary);
  margin-bottom: var(--calc-space-sm);
}

.result-features ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.result-features li {
  font-size: var(--calc-font-sm);
  color: var(--calc-text);
  padding: var(--calc-space-xs) 0;
  padding-left: var(--calc-space-lg);
  position: relative;
}

.result-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--calc-success);
  font-weight: bold;
}

/* ============================================================================
   COMPARISON SECTION
   ============================================================================ */

.calculator-comparison {
  background: var(--calc-bg);
  border-radius: var(--calc-radius-md);
  padding: var(--calc-space-lg);
  margin-bottom: var(--calc-space-lg);
  border: 1px solid var(--calc-border);
}

.calculator-comparison h4 {
  font-size: var(--calc-font-base);
  font-weight: 600;
  color: var(--calc-text);
  margin: 0 0 var(--calc-space-lg) 0;
}

.comparison-bars {
  display: flex;
  flex-direction: column;
  gap: var(--calc-space-md);
}

.comparison-bar {
  display: grid;
  grid-template-columns: 100px 1fr 70px;
  align-items: center;
  gap: var(--calc-space-sm);
}

.comparison-bar-label {
  font-size: var(--calc-font-sm);
  font-weight: 500;
  color: var(--calc-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.comparison-bar-container {
  height: 24px;
  background: var(--calc-bg-secondary);
  border-radius: var(--calc-radius-sm);
  overflow: hidden;
}

.comparison-bar-fill {
  height: 100%;
  border-radius: var(--calc-radius-sm);
  transition: width 0.5s ease-out;
}

.comparison-bar-village {
  background: linear-gradient(90deg, var(--calc-primary), var(--calc-primary-dark));
}

.comparison-bar-competitor {
  opacity: 0.8;
}

.comparison-bar-value {
  font-size: var(--calc-font-sm);
  font-weight: 600;
  color: var(--calc-text);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* Comparison Savings */
.comparison-savings {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--calc-space-sm);
  margin-top: var(--calc-space-lg);
  padding: var(--calc-space-md);
  background: linear-gradient(135deg, var(--calc-savings) 0%, #047857 100%);
  color: white;
  border-radius: var(--calc-radius-md);
  font-size: var(--calc-font-sm);
  text-align: center;
}

.comparison-savings .savings-icon {
  font-size: var(--calc-font-xl);
}

.comparison-savings strong {
  font-size: var(--calc-font-lg);
}

/* ============================================================================
   CTA SECTION
   ============================================================================ */

.calculator-cta {
  text-align: center;
}

.calculator-cta .btn {
  width: 100%;
  min-height: var(--calc-touch-preferred);
  font-size: var(--calc-font-lg);
  font-weight: 600;
}

.calculator-cta-hint {
  font-size: var(--calc-font-sm);
  color: var(--calc-text-secondary);
  margin: var(--calc-space-md) 0 0 0;
}

/* ============================================================================
   VALUE PROPOSITION BANNER (Landing Page)
   ============================================================================ */

.value-proposition-banner {
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
  color: white;
  padding: var(--calc-space-xl) var(--calc-space-lg);
  text-align: center;
  margin: 0 calc(-1 * var(--calc-space-lg));
}

.value-proposition-headline {
  font-size: var(--calc-font-2xl);
  font-weight: 700;
  margin: 0 0 var(--calc-space-md) 0;
  line-height: 1.2;
}

.value-proposition-headline .highlight {
  color: var(--calc-highlight);
}

.value-proposition-subhead {
  font-size: var(--calc-font-base);
  opacity: 0.9;
  margin: 0 0 var(--calc-space-lg) 0;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.value-proposition-comparison {
  display: flex;
  flex-direction: column;
  gap: var(--calc-space-md);
  max-width: 400px;
  margin: 0 auto;
}

.comparison-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--calc-space-md);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--calc-radius-md);
}

.comparison-item.village-highlight {
  background: var(--calc-primary);
}

.comparison-label {
  font-weight: 500;
}

.comparison-price {
  font-size: var(--calc-font-xl);
  font-weight: 700;
}

.comparison-price .strike {
  text-decoration: line-through;
  opacity: 0.6;
  font-weight: 400;
}

/* ============================================================================
   TABLET BREAKPOINT (≥ 640px)
   ============================================================================ */

@media (min-width: 640px) {
  .calculator-header h2 {
    font-size: var(--calc-font-2xl);
  }

  .calculator-header h3 {
    font-size: var(--calc-font-xl);
  }

  /* Teaser: Side by side results */
  .teaser-result-row {
    flex-direction: row;
  }

  .teaser-result-item {
    flex: 1;
  }

  .teaser-result-value {
    font-size: var(--calc-font-3xl);
  }

  /* Full mode: Better input layout */
  .calculator-inputs {
    padding: var(--calc-space-xl);
  }

  .calculator-results-panel {
    padding: var(--calc-space-xl);
  }

  /* Side by side result cards */
  .result-cards {
    flex-direction: row;
  }

  .result-card {
    flex: 1;
  }

  /* Value proposition */
  .value-proposition-banner {
    padding: var(--calc-space-xl) * 1.5;
  }

  .value-proposition-headline {
    font-size: var(--calc-font-3xl);
  }

  .value-proposition-comparison {
    flex-direction: row;
    max-width: 600px;
  }

  .comparison-item {
    flex: 1;
    flex-direction: column;
    gap: var(--calc-space-sm);
  }
}

/* ============================================================================
   DESKTOP BREAKPOINT (≥ 768px)
   ============================================================================ */

@media (min-width: 768px) {
  /* Teaser: Wider layout */
  .calculator-teaser {
    max-width: 500px;
    margin: 0 auto;
  }

  /* Full mode: Two column layout */
  .calculator-body {
    flex-direction: row;
  }

  .calculator-inputs {
    flex: 1;
    border-bottom: none;
    border-right: 1px solid var(--calc-border);
  }

  .calculator-results-panel {
    flex: 1;
  }

  /* Comparison bars - wider labels */
  .comparison-bar {
    grid-template-columns: 120px 1fr 80px;
  }

  /* Value proposition larger */
  .value-proposition-headline {
    font-size: 2.5rem;
  }
}

/* ============================================================================
   LARGE DESKTOP BREAKPOINT (≥ 1024px)
   ============================================================================ */

@media (min-width: 1024px) {
  .calculator-full .calculator-header h2 {
    font-size: 2.5rem;
  }

  .calculator-inputs,
  .calculator-results-panel {
    padding: var(--calc-space-xl) calc(var(--calc-space-xl) * 1.5);
  }

  .result-card-value {
    font-size: 2.5rem;
  }

  .value-proposition-banner {
    padding: calc(var(--calc-space-xl) * 2);
    margin: var(--calc-space-xl) 0;
    border-radius: var(--calc-radius-xl);
  }

  .value-proposition-headline {
    font-size: 3rem;
  }
}

/* ============================================================================
   ANIMATION & TRANSITIONS
   ============================================================================ */

.calculator-widget {
  animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.result-card-value,
.teaser-result-value,
.comparison-bar-fill {
  transition: all 0.3s ease-out;
}

/* ============================================================================
   PRINT STYLES
   ============================================================================ */

@media print {
  .calculator-widget {
    box-shadow: none;
    border: 1px solid #ccc;
  }

  .calculator-header {
    background: #f0f0f0;
    color: black;
  }

  .calculator-cta {
    display: none;
  }
}

/* ============================================================================
   ACCESSIBILITY
   ============================================================================ */

@media (prefers-reduced-motion: reduce) {
  .calculator-widget,
  .result-card-value,
  .teaser-result-value,
  .comparison-bar-fill,
  .calculator-slider::-webkit-slider-thumb,
  .calculator-slider::-moz-range-thumb {
    animation: none;
    transition: none;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  :root {
    --calc-border: #000;
    --calc-text: #000;
    --calc-text-secondary: #333;
  }

  .calculator-select,
  .calculator-input {
    border-width: 3px;
  }
}

/* Dark mode support (future) */
@media (prefers-color-scheme: dark) {
  /* Reserved for future dark mode implementation */
}