/* Changelog Page Styles */

/* Product Header - Consistent across all pages */
.product-header {
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
  color: var(--white);
  padding: var(--spacing-5) 0 var(--spacing-4) 0;
}

/* Product-specific accent colors for interactive elements */
.product-header.connecting-steps {
  --product-accent: var(--connecting-steps);
  --product-accent-hover: #1e3f6f;
}

.product-header.my-b-squared {
  --product-accent: var(--my-b-squared);
  --product-accent-hover: #2a9fd1;
}

.product-header.evisense {
  --product-accent: var(--evisense);
  --product-accent-hover: #a04d28;
}

.product-header.b-squared-analytics {
  --product-accent: var(--b-squared-analytics);
  --product-accent-hover: #004a7d;
}

.product-header.assessment-content {
  --product-accent: #6B5B95;
  --product-accent-hover: #5a4d7d;
}

.product-info {
  text-align: center;
  margin-bottom: var(--spacing-3);
}

.product-logo-centered {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: var(--spacing-3);
}

.product-page-logo {
  height: 60px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

/* Special handling for My B Squared white logo */
.product-page-logo[alt="My B Squared"] {
  height: 24px;
  max-width: 150px;
  transform: none;
  filter: none;
}

.product-content-section {
  text-align: center;
}

.product-description {
  font-size: var(--font-size-base);
  opacity: 0.9;
  margin: 0 auto;
  line-height: 1.5;
  max-width: 600px;
}

.product-components {
  display: flex;
  justify-content: center;
  gap: var(--spacing-3);
  flex-wrap: wrap;
}

.product-stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-8);
  margin-top: var(--spacing-6);
}

/* Header stats in the blue product header */
.stat {
  text-align: center;
}

.product-header .stat {
  color: var(--white) !important;
}

.product-header .stat-number {
  display: block;
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-1);
  color: var(--white) !important;
}

.product-header .stat-label {
  font-size: var(--font-size-sm);
  opacity: 1;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--white) !important;
}

/* Generic stat number and label (used elsewhere) */
.stat-number {
  display: block;
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-1);
}

.stat-label {
  font-size: var(--font-size-sm);
  opacity: 0.8;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Controls Section */
.controls {
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  padding: var(--spacing-6) 0;
  position: sticky;
  top: 80px;
  z-index: 50;
  box-shadow: 0 2px 4px rgb(0 0 0 / 0.05);
}

.controls-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

/* Search */
.search-container {
  position: relative;
  max-width: 400px;
}

.search-input {
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  border: 2px solid var(--gray-300);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-base);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.search-input:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgb(59 130 246 / 0.1);
}

.clear-search {
  position: absolute;
  right: var(--spacing-3);
  top: 50%;
  transform: translateY(-50%);
  background: var(--gray-400);
  color: var(--white);
  border: none;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xs);
  transition: background-color 0.2s ease;
}

.clear-search:hover {
  background: var(--gray-600);
}

/* Filters */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-6);
  align-items: center;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.filter-label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--gray-600);
  white-space: nowrap;
}

.filter-buttons {
  display: flex;
  gap: var(--spacing-2);
  flex-wrap: wrap;
}

.filter-btn {
  padding: var(--spacing-2) var(--spacing-4);
  border: 2px solid var(--gray-300);
  background: var(--white);
  color: var(--gray-700);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.filter-btn:hover {
  border-color: var(--primary-blue);
  color: var(--primary-blue);
}

.filter-btn.active {
  background: var(--primary-blue);
  border-color: var(--primary-blue);
  color: var(--white);
}

/* Changelog Timeline */
.changelog {
  padding: var(--spacing-8) 0;
  min-height: 400px;
}

.changelog-timeline {
  max-width: 800px;
  margin: 0 auto;
}

.timeline-month {
  margin-bottom: var(--spacing-8);
}

.month-header {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-6);
  position: relative;
}

.month-title {
  background: var(--gray-50);
  padding: var(--spacing-2) var(--spacing-4);
  border-radius: var(--radius-md);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--gray-800);
  border: 1px solid var(--gray-200);
}

.month-line {
  flex: 1;
  height: 1px;
  background: var(--gray-200);
  margin-left: var(--spacing-4);
}

.timeline-entries {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  position: relative;
  padding-left: var(--spacing-6);
}

.timeline-entries::before {
  content: '';
  position: absolute;
  left: var(--spacing-3);
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--gray-200);
}

/* Changelog Entry */
.changelog-entry {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-6);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  position: relative;
  transition: all 0.2s ease;
}

.changelog-entry::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--spacing-6) - 6px);
  top: var(--spacing-6);
  width: 12px;
  height: 12px;
  background: var(--primary-blue);
  border-radius: 50%;
  border: 3px solid var(--white);
  box-shadow: 0 0 0 2px var(--primary-blue);
}

.changelog-entry:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-blue);
}

.entry-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-4);
  gap: var(--spacing-4);
}

.entry-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--gray-900);
  margin: 0;
  line-height: 1.4;
  flex: 1;
}

.entry-date {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
  white-space: nowrap;
  font-weight: 500;
}

.entry-description {
  color: var(--gray-700);
  line-height: 1.6;
  margin-bottom: var(--spacing-4);
}

.entry-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-4);
  flex-wrap: wrap;
}

.entry-badges {
  display: flex;
  gap: var(--spacing-2);
  flex-wrap: wrap;
}

.entry-link {
  font-size: var(--font-size-xs);
  color: var(--gray-500);
  text-decoration: none;
  transition: color 0.2s ease;
}

.entry-link:hover {
  color: var(--primary-blue);
}

/* States */
.loading-state {
  text-align: center;
  padding: var(--spacing-16);
  color: var(--gray-600);
}

.loading-state .spinner {
  margin: 0 auto var(--spacing-4) auto;
}

.error-state {
  text-align: center;
  padding: var(--spacing-16);
  max-width: 500px;
  margin: 0 auto;
}

.error-icon {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-4);
}

.error-state h3 {
  color: var(--gray-800);
  margin-bottom: var(--spacing-3);
}

.error-state p {
  color: var(--gray-600);
  margin-bottom: var(--spacing-6);
}

.empty-state {
  text-align: center;
  padding: var(--spacing-16);
  max-width: 500px;
  margin: 0 auto;
}

.empty-icon {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-4);
  opacity: 0.5;
}

.empty-state h3 {
  color: var(--gray-600);
  margin-bottom: var(--spacing-3);
}

.empty-state p {
  color: var(--gray-500);
}

/* Load More */
.load-more-container {
  text-align: center;
  padding: var(--spacing-8) 0;
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: var(--spacing-6);
  right: var(--spacing-6);
  width: 48px;
  height: 48px;
  background: var(--primary-blue);
  color: var(--white);
  border: none;
  border-radius: 50%;
  font-size: var(--font-size-lg);
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: all 0.2s ease;
  z-index: 100;
}

.back-to-top:hover {
  background: var(--dark-blue);
  transform: translateY(-2px);
}

/* Product-specific styling for interactive elements */

/* Connecting Steps accent colors */
.product-header.connecting-steps ~ * .search-input:focus {
  border-color: rgba(45, 87, 151, 0.3);
  box-shadow: 0 0 0 3px rgba(45, 87, 151, 0.1);
}

.product-header.connecting-steps ~ * .filter-btn.active,
.product-header.connecting-steps ~ * .btn-primary,
.product-header.connecting-steps ~ * .back-to-top {
  border-color: var(--connecting-steps);
  background: var(--connecting-steps);
}

.product-header.connecting-steps ~ * .filter-btn:hover,
.product-header.connecting-steps ~ * .btn-primary:hover,
.product-header.connecting-steps ~ * .back-to-top:hover {
  border-color: #1e3f6f;
  background: #1e3f6f;
}

.product-header.connecting-steps ~ * .changelog-entry:hover {
  border-color: var(--connecting-steps);
}

.product-header.connecting-steps ~ * .changelog-entry::before {
  background: var(--connecting-steps);
  box-shadow: 0 0 0 2px var(--connecting-steps);
}

.product-header.connecting-steps ~ * .month-title {
  background: var(--connecting-steps);
  border-color: var(--connecting-steps);
  color: var(--white);
}

/* My B Squared accent colors */
.product-header.my-b-squared ~ * .search-input:focus {
  border-color: rgba(62, 182, 235, 0.3);
  box-shadow: 0 0 0 3px rgba(62, 182, 235, 0.1);
}

.product-header.my-b-squared ~ * .filter-btn.active,
.product-header.my-b-squared ~ * .btn-primary,
.product-header.my-b-squared ~ * .back-to-top {
  border-color: var(--my-b-squared);
  background: var(--my-b-squared);
}

.product-header.my-b-squared ~ * .filter-btn:hover,
.product-header.my-b-squared ~ * .btn-primary:hover,
.product-header.my-b-squared ~ * .back-to-top:hover {
  border-color: #2a9fd1;
  background: #2a9fd1;
}

.product-header.my-b-squared ~ * .changelog-entry:hover {
  border-color: var(--my-b-squared);
}

.product-header.my-b-squared ~ * .changelog-entry::before {
  background: var(--my-b-squared);
  box-shadow: 0 0 0 2px var(--my-b-squared);
}

.product-header.my-b-squared ~ * .month-title {
  background: var(--my-b-squared);
  border-color: var(--my-b-squared);
  color: var(--white);
}

/* Evisense accent colors */
.product-header.evisense ~ * .search-input:focus {
  border-color: rgba(205, 100, 58, 0.3);
  box-shadow: 0 0 0 3px rgba(205, 100, 58, 0.1);
}

.product-header.evisense ~ * .filter-btn.active,
.product-header.evisense ~ * .btn-primary,
.product-header.evisense ~ * .back-to-top {
  border-color: var(--evisense);
  background: var(--evisense);
}

.product-header.evisense ~ * .filter-btn:hover,
.product-header.evisense ~ * .btn-primary:hover,
.product-header.evisense ~ * .back-to-top:hover {
  border-color: #a04d28;
  background: #a04d28;
}

.product-header.evisense ~ * .changelog-entry:hover {
  border-color: var(--evisense);
}

.product-header.evisense ~ * .changelog-entry::before {
  background: var(--evisense);
  box-shadow: 0 0 0 2px var(--evisense);
}

.product-header.evisense ~ * .month-title {
  background: var(--evisense);
  border-color: var(--evisense);
  color: var(--white);
}

/* B Squared Analytics accent colors */
.product-header.b-squared-analytics ~ * .search-input:focus {
  border-color: rgba(0, 99, 167, 0.3);
  box-shadow: 0 0 0 3px rgba(0, 99, 167, 0.1);
}

.product-header.b-squared-analytics ~ * .filter-btn.active,
.product-header.b-squared-analytics ~ * .btn-primary,
.product-header.b-squared-analytics ~ * .back-to-top {
  border-color: var(--b-squared-analytics);
  background: var(--b-squared-analytics);
}

.product-header.b-squared-analytics ~ * .filter-btn:hover,
.product-header.b-squared-analytics ~ * .btn-primary:hover,
.product-header.b-squared-analytics ~ * .back-to-top:hover {
  border-color: #004a7d;
  background: #004a7d;
}

.product-header.b-squared-analytics ~ * .changelog-entry:hover {
  border-color: var(--b-squared-analytics);
}

.product-header.b-squared-analytics ~ * .changelog-entry::before {
  background: var(--b-squared-analytics);
  box-shadow: 0 0 0 2px var(--b-squared-analytics);
}

.product-header.b-squared-analytics ~ * .month-title {
  background: var(--b-squared-analytics);
  border-color: var(--b-squared-analytics);
  color: var(--white);
}

/* Assessment Content Theming */
.product-header.assessment-content ~ * .search-input:focus {
  border-color: rgba(107, 91, 149, 0.3);
  box-shadow: 0 0 0 3px rgba(107, 91, 149, 0.1);
}

.product-header.assessment-content ~ * .filter-btn.active,
.product-header.assessment-content ~ * .btn-primary,
.product-header.assessment-content ~ * .back-to-top {
  border-color: #6B5B95;
  background: #6B5B95;
}

.product-header.assessment-content ~ * .filter-btn:hover,
.product-header.assessment-content ~ * .btn-primary:hover,
.product-header.assessment-content ~ * .back-to-top:hover {
  background: #5a4d7d;
  border-color: #5a4d7d;
}

.product-header.assessment-content ~ * .changelog-entry:hover {
  border-color: #6B5B95;
}

.product-header.assessment-content ~ * .changelog-entry::before {
  background: #6B5B95;
  box-shadow: 0 0 0 2px #6B5B95;
}

.product-header.assessment-content ~ * .month-title {
  background: #6B5B95;
  border-color: #6B5B95;
  color: var(--white);
}

/* Responsive Design */
@media (max-width: 768px) {
  .product-header {
    padding: var(--spacing-4) 0 var(--spacing-3) 0;
  }
  
  .product-info {
    margin-bottom: var(--spacing-2);
  }
  
  .product-logo-centered {
    margin-bottom: var(--spacing-2);
  }
  
  .product-page-logo {
    height: 48px;
    max-width: 140px;
  }

  .product-page-logo[alt="My B Squared"] {
    height: 18px;
    max-width: 120px;
    transform: none;
    filter: none;
  }
  
  .product-description {
    font-size: var(--font-size-sm);
    line-height: 1.4;
  }
  
  .product-stats {
    gap: var(--spacing-4);
  }
  
  .controls {
    position: static;
  }
  
  .controls-content {
    gap: var(--spacing-6);
  }
  
  .filters {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-4);
  }
  
  .filter-group {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-2);
    width: 100%;
  }
  
  .filter-buttons {
    width: 100%;
    justify-content: flex-start;
  }
  
  .entry-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .entry-meta {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .timeline-entries {
    padding-left: var(--spacing-4);
  }
  
  .changelog-entry::before {
    left: calc(-1 * var(--spacing-4) - 6px);
  }
  
  .back-to-top {
    bottom: var(--spacing-4);
    right: var(--spacing-4);
    width: 44px;
    height: 44px;
  }
}

/* Product Statistics Section */
.product-stats-section {
  background: var(--gray-50);
  padding: var(--spacing-8) 0;
  border-top: 1px solid var(--gray-200);
}

.product-stats-section h3 {
  text-align: center;
  color: var(--gray-900);
  margin-bottom: var(--spacing-8);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-6);
  max-width: 800px;
  margin: 0 auto;
}

.stat-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-6);
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: all 0.2s ease;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Development Statistics specific styling */
.stat-card .stat-number {
  display: block;
  font-size: var(--font-size-4xl);
  font-family: var(--font-family-heading);
  font-weight: 700;
  color: var(--primary-blue);
  margin-bottom: var(--spacing-2);
}

.stat-card .stat-label {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: var(--spacing-1);
}

.stat-card .stat-description {
  font-size: var(--font-size-sm);
  color: var(--gray-500);
}

/* Product-specific stat number colors */

/* Connecting Steps accent colors */
.product-header.connecting-steps ~ * .stat-number {
  color: var(--connecting-steps);
}

.product-header.connecting-steps ~ * .stat-card:hover {
  border-color: var(--connecting-steps);
}

/* My B Squared accent colors */
.product-header.my-b-squared ~ * .stat-number {
  color: var(--my-b-squared);
}

.product-header.my-b-squared ~ * .stat-card:hover {
  border-color: var(--my-b-squared);
}

/* Evisense accent colors */
.product-header.evisense ~ * .stat-number {
  color: var(--evisense);
}

.product-header.evisense ~ * .stat-card:hover {
  border-color: var(--evisense);
}

/* B Squared Analytics accent colors */
.product-header.b-squared-analytics ~ * .stat-number {
  color: var(--b-squared-analytics);
}

.product-header.b-squared-analytics ~ * .stat-card:hover {
  border-color: var(--b-squared-analytics);
}

/* Responsive adjustments for statistics */
@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-4);
  }
  
  .stat-card {
    padding: var(--spacing-4);
  }
  
  .stat-number {
    font-size: var(--font-size-3xl);
  }
  
  .product-stats-section {
    padding: var(--spacing-6) 0;
  }
}

/* Known Issues Styling */
body:has([data-known-issues="true"]) .filter-btn.active,
body:has([data-known-issues="true"]) .filter-btn:hover,
body:has([data-known-issues="true"]) .btn-primary {
  background-color: #dc2626 !important;
  background: #dc2626 !important;
  border-color: #dc2626 !important;
  color: white !important;
}

body:has([data-known-issues="true"]) .changelog-entry:hover {
  background-color: rgba(220, 38, 38, 0.05);
  border-left-color: #dc2626;
}

body:has([data-known-issues="true"]) .entry-date {
  color: #dc2626;
}

body:has([data-known-issues="true"]) .entry-meta .badge {
  background-color: rgba(220, 38, 38, 0.1);
  color: #dc2626;
}

body:has([data-known-issues="true"]) .back-to-top:hover {
  background-color: #dc2626;
}

body:has([data-known-issues="true"]) .month-title {
  background: #dc2626 !important;
  border-color: #dc2626 !important;
  color: white !important;
}

/* Fallback for browsers that don't support :has() */
.known-issues-page .filter-btn.active,
.known-issues-page .filter-btn:hover,
.known-issues-page .btn-primary {
  background-color: #dc2626 !important;
  background: #dc2626 !important;
  border-color: #dc2626 !important;
  color: white !important;
}

.known-issues-page .changelog-entry:hover {
  background-color: rgba(220, 38, 38, 0.05);
  border-left-color: #dc2626;
}

.known-issues-page .entry-date {
  color: #dc2626;
}

.known-issues-page .entry-meta .badge {
  background-color: rgba(220, 38, 38, 0.1);
  color: #dc2626;
}

.known-issues-page .back-to-top:hover {
  background-color: #dc2626;
}

.known-issues-page .month-title {
  background: #dc2626 !important;
  border-color: #dc2626 !important;
  color: white !important;
}

/* Print Styles */
@media print {
  .controls,
  .back-to-top,
  .product-stats-section {
    display: none;
  }
  
  .changelog-entry {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid var(--gray-300);
  }
}