/* Case Study Detail Page Layout & Typography Styles */

.case-study-hero {
  padding-top: calc(var(--header-height) + var(--space-8));
  padding-bottom: var(--space-12);
  background: linear-gradient(180deg, var(--color-bg-surface) 0%, var(--color-bg-primary) 100%);
  border-bottom: 1px solid var(--color-border);
}

.case-study-back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  transition: color var(--transition-fast);
}

.case-study-back-link:hover {
  color: var(--color-text-accent);
}

.case-study-title {
  font-size: var(--text-3xl);
  line-height: var(--line-height-snug);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
  max-width: 900px;
}

.case-study-subtitle {
  font-family: var(--font-family-serif);
  font-style: italic;
  font-size: var(--text-xl);
  color: var(--color-text-accent);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-8);
  max-width: 820px;
}

/* Sidebar Meta Grid */
.case-study-meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-6);
  padding: var(--space-6);
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-top: var(--space-6);
}

.case-study-meta-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.case-study-meta-label {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.case-study-meta-value {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

/* Case Study Main Layout (Content + Sticky Table of Contents) */
.case-study-body {
  padding-top: var(--space-12);
  padding-bottom: var(--space-20);
}

.case-study-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: start;
  position: relative;
}

@media (min-width: 992px) {
  .case-study-layout {
    grid-template-columns: 48px 1fr;
    gap: var(--space-8);
  }
}

/* Content Formatting (Expanded to fill freed width) */
.case-study-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
  max-width: 960px;
  width: 100%;
}

/* Collapsible Floating Side Rail Table of Contents (Matching Reference Mockup) */
.case-study-toc {
  position: sticky !important;
  top: calc(var(--header-height) + var(--space-6)) !important;
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  width: 50px !important;
  min-width: 50px !important;
  max-width: 50px !important;
  padding: 1.25rem 0.6rem !important;
  background-color: var(--color-clay-deep) !important;
  border: 1px solid rgba(247, 243, 236, 0.1) !important;
  border-radius: 20px !important;
  z-index: 100 !important;
  transition: width 240ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 240ms ease, border-color 240ms ease !important;
  box-shadow: 0 2px 8px rgba(32, 61, 50, 0.12) !important;
  overflow: hidden !important;
  box-sizing: border-box !important;
}

@media (min-width: 992px) {
  .case-study-toc {
    margin-left: -12px !important;
  }
}

/* Collapsed Header / Sidebar Icon */
.toc-header {
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 0.75rem !important;
  width: 100% !important;
  margin-bottom: 1.25rem !important;
  padding-left: 0 !important;
  box-sizing: border-box !important;
}

.toc-toggle-btn {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 20px !important;
  height: 20px !important;
  min-width: 20px !important;
  border: none !important;
  background: transparent !important;
  color: var(--color-text-inverse-muted) !important;
  border-radius: 6px !important;
  cursor: pointer !important;
  padding: 0 !important;
  flex-shrink: 0 !important;
  transition: color 150ms ease !important;
}

.toc-toggle-btn svg {
  width: 16px !important;
  height: 16px !important;
}

.toc-toggle-btn:hover,
.toc-toggle-btn:focus-visible {
  color: var(--color-butter) !important;
  outline: none !important;
}

.toc-title {
  font-size: 0.75rem !important;
  font-weight: 600 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.08em !important;
  color: var(--color-text-inverse-muted) !important;
  white-space: nowrap !important;
  display: none !important;
}

/* Collapsed Section Links List */
.toc-links-list {
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  gap: 1.1rem !important;
  width: 100% !important;
}

.toc-link {
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  justify-content: center !important;
  font-size: 0.875rem !important;
  color: var(--color-text-inverse-muted) !important;
  padding: 0.2rem 0 !important;
  border-radius: 12px !important;
  text-decoration: none !important;
  transition: color 150ms ease, background-color 150ms ease !important;
  white-space: nowrap !important;
  width: 100% !important;
  box-sizing: border-box !important;
}

.toc-link:hover,
.toc-link:focus-visible {
  color: var(--color-text-inverse) !important;
  background-color: rgba(247, 243, 236, 0.08) !important;
  outline: none !important;
}

/* Minimal Collapsed Indicator Dot */
.toc-dot {
  display: inline-block !important;
  width: 6px !important;
  height: 6px !important;
  min-width: 6px !important;
  min-height: 6px !important;
  border-radius: 50% !important;
  background-color: rgba(247, 243, 236, 0.28) !important;
  transition: all 200ms ease !important;
  flex-shrink: 0 !important;
  margin: 0 auto !important;
}

/* Active Section Dot (Collapsed) */
.toc-link.active .toc-dot {
  display: inline-block !important;
  width: 10px !important;
  height: 10px !important;
  min-width: 10px !important;
  min-height: 10px !important;
  background-color: var(--color-butter) !important;
  box-shadow: 0 0 10px rgba(244, 211, 94, 0.85) !important;
  margin: 0 auto !important;
}

.toc-link.active {
  color: var(--color-butter) !important;
  font-weight: 600 !important;
  background-color: transparent !important;
  padding: 0.2rem 0 !important;
}

.toc-text {
  display: none !important;
  white-space: nowrap !important;
  overflow: hidden !important;
  text-overflow: ellipsis !important;
}

/* ========================================================= */
/* HOVER / EXPANDED STATE (LEFT-ALIGNED WITH 10PX BULLET GAP) */
/* ========================================================= */

.case-study-toc:hover,
.case-study-toc.is-expanded,
.case-study-toc:focus-within {
  width: 260px !important;
  min-width: 260px !important;
  max-width: 260px !important;
  align-items: flex-start !important;
  padding: 1.25rem 0.85rem !important;
  border-color: rgba(247, 243, 236, 0.16) !important;
  box-shadow: 0 16px 40px rgba(32, 61, 50, 0.3), 0 0 0 1px rgba(244, 211, 94, 0.25) !important;
}

.case-study-toc:hover .toc-header,
.case-study-toc.is-expanded .toc-header,
.case-study-toc:focus-within .toc-header {
  justify-content: flex-start !important;
  padding-left: 0.25rem !important;
}

.case-study-toc:hover .toc-title,
.case-study-toc.is-expanded .toc-title,
.case-study-toc:focus-within .toc-title {
  display: block !important;
}

.case-study-toc:hover .toc-links-list,
.case-study-toc.is-expanded .toc-links-list,
.case-study-toc:focus-within .toc-links-list {
  align-items: flex-start !important;
  gap: 0.3rem !important;
}

.case-study-toc:hover .toc-link,
.case-study-toc.is-expanded .toc-link,
.case-study-toc:focus-within .toc-link {
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  justify-content: flex-start !important;
  padding: 0.55rem 0.85rem !important;
  width: 100% !important;
}

.case-study-toc:hover .toc-dot,
.case-study-toc.is-expanded .toc-dot,
.case-study-toc:focus-within .toc-dot {
  display: inline-block !important;
  width: 6px !important;
  height: 6px !important;
  min-width: 6px !important;
  min-height: 6px !important;
  margin: 0 10px 0 0 !important;
  background-color: rgba(247, 243, 236, 0.4) !important;
  box-shadow: none !important;
}

.case-study-toc:hover .toc-link.active .toc-dot,
.case-study-toc.is-expanded .toc-link.active .toc-dot,
.case-study-toc:focus-within .toc-link.active .toc-dot {
  display: inline-block !important;
  width: 7px !important;
  height: 7px !important;
  min-width: 7px !important;
  min-height: 7px !important;
  margin: 0 10px 0 0 !important;
  background-color: var(--color-butter) !important;
  box-shadow: 0 0 6px rgba(244, 211, 94, 0.75) !important;
}

.case-study-toc:hover .toc-link.active,
.case-study-toc.is-expanded .toc-link.active,
.case-study-toc:focus-within .toc-link.active {
  color: var(--color-butter) !important;
  background-color: rgba(53, 91, 74, 0.55) !important;
  font-weight: 600 !important;
  padding: 0.55rem 0.85rem !important;
  border-radius: 12px !important;
  justify-content: flex-start !important;
}

.case-study-toc:hover .toc-text,
.case-study-toc.is-expanded .toc-text,
.case-study-toc:focus-within .toc-text {
  display: block !important;
  margin: 0 !important;
}

/* Section Text Label: HIDE COMPLETELY in collapsed mode */
.toc-text {
  display: none !important;
  white-space: nowrap !important;
  overflow: hidden !important;
  text-overflow: ellipsis !important;
}

.case-study-toc:hover .toc-text,
.case-study-toc.is-expanded .toc-text,
.case-study-toc:focus-within .toc-text {
  display: block !important;
}

/* Mobile & Tablet Treatment */
@media (max-width: 991px) {
  .case-study-toc {
    position: fixed;
    top: auto;
    bottom: 1.5rem;
    left: 1.25rem;
    width: 48px;
    max-height: 80vh;
    z-index: 1000;
  }

  .case-study-toc:hover,
  .case-study-toc.is-expanded,
  .case-study-toc:focus-within {
    width: min(280px, calc(100vw - 2.5rem));
  }
}

.case-study-content h2 {
  font-size: var(--text-2xl);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border-subtle);
  scroll-margin-top: calc(var(--header-height) + var(--space-6));
}

.case-study-content h3 {
  font-size: var(--text-lg);
  color: var(--color-text-primary);
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
}

.case-study-content p {
  font-size: var(--text-base);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.case-study-content ul {
  list-style: disc;
  padding-left: var(--space-6);
  margin-bottom: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.case-study-content li {
  color: var(--color-text-secondary);
  line-height: var(--line-height-base);
}

/* Callout Box & Quotes */
.case-study-callout {
  padding: var(--space-6);
  background-color: var(--color-bg-surface);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: var(--space-4) 0;
}

.case-study-callout h4 {
  font-size: var(--text-sm);
  color: var(--color-text-accent);
  margin-bottom: var(--space-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Figures & Image Captions */
.case-study-figure {
  margin: var(--space-6) 0;
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  overflow: hidden;
}

.case-study-figure img {
  width: 100%;
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-elevated);
}

.case-study-figure figcaption {
  font-family: var(--font-family-serif);
  font-style: italic;
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  margin-top: var(--space-3);
  padding: 0 var(--space-2) var(--space-1) var(--space-2);
  text-align: center;
}

/* Bottom Pagination Navigation */
.case-study-bottom-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-6);
  padding-top: var(--space-10);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-12);
}

.case-study-nav-btn {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-4) var(--space-6);
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-decoration: none;
  max-width: 320px;
}

.case-study-nav-btn:hover {
  border-color: var(--color-border-accent);
  transform: translateY(-2px);
}

.case-study-nav-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.case-study-nav-title {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

/* Before & After Comparison Cards */
.before-after-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  margin: var(--space-6) 0;
}

.before-after-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  box-shadow: var(--shadow-sm);
}

/* Design Solutions Shared Card Treatment (Matching Before & After Improvements) */
.solutions-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  margin: var(--space-6) 0;
}

.solution-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  box-shadow: var(--shadow-sm);
}

.solution-card .solution-title,
.solution-card h3 {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-top: 0;
  margin-bottom: var(--space-1);
}

.solution-card .solution-text,
.solution-card p {
  font-size: var(--text-base);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}

.solution-figure {
  margin: var(--space-2) 0;
  background-color: transparent;
  border: none;
  padding: 0;
  overflow: hidden;
}

.solution-figure img {
  width: 100%;
  border-radius: var(--radius-md);
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
}

.solution-figure figcaption {
  font-family: var(--font-family-serif);
  font-style: italic;
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  margin-top: var(--space-3);
  padding: 0 var(--space-2);
  text-align: center;
}

.before-after-title {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.before-after-images {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .before-after-images {
    grid-template-columns: 1fr 1fr;
  }
}

.comparison-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* Clean Eyebrow Text Callouts (Matching Homepage Eyebrow Style: CURATED CASE STUDIES) */
.comparison-badge {
  display: inline-block !important;
  font-size: 0.75rem !important;
  font-weight: 600 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.12em !important;
  line-height: 1.4 !important;
  background: transparent !important;
  border: none !important;
  padding: 0 !important;
  margin-bottom: 0.5rem !important;
  box-shadow: none !important;
}

/* "BEFORE" Eyebrow Text: Muted Warm Neutral - High Contrast on Cream */
.comparison-badge.before {
  color: var(--color-text-muted) !important;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
}

/* "AFTER" Eyebrow Text: Homepage Accent */
.comparison-badge.after {
  color: var(--color-text-accent) !important;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
}

.comparison-img {
  width: 100%;
  border-radius: var(--radius-md);
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  object-fit: cover;
}

.comparison-video {
  display: block;
  outline: none;
}

.reduced-motion-fallback {
  display: none !important;
}

@media (prefers-reduced-motion: reduce) {
  .comparison-video {
    display: none !important;
  }
  .reduced-motion-fallback {
    display: block !important;
  }
}

/* Edge Bleed-Through Fix for Kiosk Gallery View & Map Tour View Screenshots */
.crop-screenshot-wrapper {
  position: relative;
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background-color: var(--color-bg-elevated);
}

.crop-screenshot-wrapper img,
img.crop-screenshot-img {
  width: 100%;
  height: 100%;
  object-fit: contain !important;
  object-position: center !important;
  transform: none !important;
  display: block;
  border: none !important;
}

.before-after-points {
  margin-top: var(--space-2);
  padding-left: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.before-after-points li {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* White Image Container for Transparent Images */
.image-container-white {
  background-color: var(--color-bg-surface);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  justify-content: center;
  align-items: center;
  border: 1px solid var(--color-border);
}

.case-study-figure.overview-figure {
  max-width: 460px;
  margin: var(--space-6) auto;
  border-radius: var(--radius-md);
}

/* Sized Comparisons for Mobile and Meterboards */
.before-after-images.mobile-comparison .comparison-col {
  align-items: center;
}

.before-after-images.mobile-comparison .comparison-img {
  max-width: 260px;
  height: auto;
  object-fit: contain;
}

.before-after-images.meterboard-comparison .comparison-col {
  align-items: center;
}

.before-after-images.meterboard-comparison .comparison-img {
  max-width: 300px;
  height: auto;
  object-fit: contain;
}

/* Solution 3 Supporting Thumbnail Grid */
.solution-thumbnail-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  justify-content: center;
  margin: var(--space-6) 0;
}

.solution-thumbnail-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.solution-thumbnail-item.mobile-thumb img {
  max-width: 220px;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.solution-thumbnail-item.meterboard-thumb img {
  max-width: 260px;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

/* Option A: Numbered Markers Callout System */
.annotated-image-wrapper {
  position: relative;
  display: block;
  width: 100%;
}

.annotation-marker {
  position: absolute;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background-color: var(--color-bg-surface);
  border: 1.5px solid var(--color-accent);
  color: var(--color-espresso);
  font-weight: var(--font-weight-bold);
  font-size: 0.7rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 6px rgba(43, 30, 26, 0.2);
  z-index: 10;
  pointer-events: auto;
  cursor: pointer;
  outline: none;
  transition: transform 200ms cubic-bezier(0.16, 1, 0.3, 1), 
              box-shadow 200ms cubic-bezier(0.16, 1, 0.3, 1), 
              background-color 200ms ease, 
              border-color 200ms ease, 
              color 200ms ease;
  user-select: none;
  -webkit-user-select: none;
}

/* Expanded touch target region for touch devices (38px hit area) */
.annotation-marker::before {
  content: '';
  position: absolute;
  inset: -8px;
  border-radius: 50%;
}

/* Active / Hovered / Focused Marker Highlight */
.annotation-marker:hover,
.annotation-marker:focus-visible,
.annotation-marker.is-active {
  transform: scale(1.3);
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  border-color: var(--color-bg-surface);
  box-shadow: 0 0 0 4px rgba(53, 91, 74, 0.32), 0 4px 12px rgba(32, 61, 50, 0.45);
  z-index: 20;
}

.annotation-legend {
  display: flex !important;
  flex-direction: column !important;
  gap: 0 !important;
  margin-top: var(--space-4) !important;
  padding-top: var(--space-2) !important;
  border-top: 1px solid var(--color-border-subtle) !important;
}

.annotation-item {
  display: flex !important;
  align-items: flex-start !important;
  gap: var(--space-3) !important;
  padding: 0.9rem 0.6rem !important;
  background-color: transparent !important;
  border: none !important;
  border-bottom: 1px solid var(--color-border-subtle) !important;
  border-radius: var(--radius-sm) !important;
  transition: background-color 200ms cubic-bezier(0.16, 1, 0.3, 1), 
              transform 200ms cubic-bezier(0.16, 1, 0.3, 1) !important;
  cursor: pointer !important;
  outline: none !important;
  scroll-margin: 80px !important;
}

.annotation-item:last-child {
  border-bottom: none !important;
}

/* Subtle Row Highlight on Hover / Focus / Active without nested border box */
.annotation-item:hover,
.annotation-item:focus-visible,
.annotation-item.is-highlighted {
  background-color: rgba(53, 91, 74, 0.1) !important;
  transform: translateX(4px) !important;
  box-shadow: none !important;
}

.annotation-num-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  font-weight: var(--font-weight-bold);
  font-size: 0.7rem;
  flex-shrink: 0;
  margin-top: 2px;
  transition: transform 200ms ease, background-color 200ms ease, box-shadow 200ms ease;
}

.annotation-item:hover .annotation-num-badge,
.annotation-item:focus-visible .annotation-num-badge,
.annotation-item.is-highlighted .annotation-num-badge {
  transform: scale(1.15);
  box-shadow: 0 0 8px rgba(53, 91, 74, 0.7);
}

.annotation-text {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

.annotation-text strong {
  color: var(--color-text-primary);
}

/* ========================================================= */
/* OVERVIEW LOOSE SCATTERED 4-PHOTO RESEARCH CLUSTER         */
/* ========================================================= */

.overview-photo-cluster {
  position: relative;
  width: 100%;
  max-width: 840px;
  min-height: 480px;
  margin: var(--space-8) auto var(--space-20) auto !important;
  display: block;
}

.cluster-photo {
  position: absolute;
  margin: 0;
  padding: 6px;
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 32px rgba(43, 30, 26, 0.19);
  transition: transform 300ms cubic-bezier(0.16, 1, 0.3, 1),
              z-index 0ms, 
              box-shadow 300ms ease, 
              border-color 300ms ease;
  cursor: pointer;
  outline: none;
}

.cluster-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-sm);
  display: block;
}

/* Hover Captions (Straighten, scale up, fade in caption) */
.cluster-caption {
  position: absolute;
  bottom: 12px;
  left: 12px;
  right: 12px;
  padding: 0.65rem 0.85rem;
  background-color: rgba(43, 30, 26, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-sm);
  color: var(--color-text-inverse);
  font-size: 0.78rem;
  line-height: 1.4;
  opacity: 0;
  pointer-events: none;
  transform: translateY(6px);
  transition: opacity 250ms ease, transform 250ms ease;
  z-index: 10;
  box-shadow: 0 8px 24px rgba(43, 30, 26, 0.24);
}

.cluster-photo:hover,
.cluster-photo:focus-visible {
  transform: rotate(0deg) scale(1.08) !important;
  z-index: 50 !important;
  box-shadow: 0 24px 50px rgba(43, 30, 26, 0.28), 0 0 0 1px rgba(53, 91, 74, 0.32) !important;
  border-color: var(--color-accent) !important;
}

.cluster-photo:hover .cluster-caption,
.cluster-photo:focus-visible .cluster-caption {
  opacity: 1;
  transform: translateY(0);
}

/* Photo 1: Main Highlight (Prominent Center) */
.cluster-photo.photo-main {
  width: 380px;
  height: auto;
  top: 10%;
  left: 28%;
  z-index: 5;
  transform: rotate(-1.5deg);
}

/* Photo 2: People Using Kiosk (Overlapping Left) */
.cluster-photo.photo-people {
  width: 260px;
  height: auto;
  top: 20%;
  left: 1%;
  z-index: 6;
  transform: rotate(-5deg);
}

/* Photo 3: Lady Taking Photo (Supporting Top Right) */
.cluster-photo.photo-lady {
  width: 240px;
  height: auto;
  top: 2%;
  right: 2%;
  z-index: 3;
  transform: rotate(4deg);
}

/* Photo 4: Signage (Supporting Bottom Right) */
.cluster-photo.photo-signage {
  width: 250px;
  height: auto;
  bottom: 2%;
  right: 5%;
  z-index: 4;
  transform: rotate(-3deg);
}

/* Responsive Layout for Mobile & Tablet */
@media (max-width: 768px) {
  .overview-photo-cluster {
    min-height: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin: var(--space-6) 0;
  }

  .cluster-photo.photo-main,
  .cluster-photo.photo-signage,
  .cluster-photo.photo-lady,
  .cluster-photo.photo-people {
    position: relative;
    width: 100%;
    max-width: 100%;
    top: auto;
    left: auto;
    right: auto;
    bottom: auto;
    transform: none !important;
  }

  .cluster-caption {
    opacity: 1;
    position: relative;
    bottom: auto;
    left: auto;
    right: auto;
    margin-top: 6px;
    transform: none;
    background-color: var(--color-bg-surface);
  }
}

/* ========================================================= */
/* CLICK-TO-ENLARGE IMAGE MODAL (~2X SIZE FLOATING OVERLAY)  */
/* ========================================================= */

.clickable-zoom-img {
  cursor: zoom-in !important;
  transition: transform 200ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 200ms ease !important;
}

.clickable-zoom-img:hover {
  transform: scale(1.015) !important;
  box-shadow: 0 8px 24px rgba(43, 30, 26, 0.16) !important;
}

.image-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(43, 30, 26, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 250ms cubic-bezier(0.16, 1, 0.3, 1);
  padding: 1.5rem;
}

.image-modal-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.image-modal-container {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  max-width: 100%;
  max-height: 100%;
  transform: scale(0.94);
  transition: transform 250ms cubic-bezier(0.16, 1, 0.3, 1);
}

.image-modal-overlay.is-open .image-modal-container {
  transform: scale(1);
}

/* The × is CSS-drawn (two crossed bars on ::before/::after) rather than
   a text glyph, since font × glyphs aren't reliably ink-centered within
   their own line box. Sits as a direct child of the overlay (not the
   container) so position: fixed anchors to the viewport rather than to
   the container's own transform, which would otherwise create its own
   containing block. */
.image-modal-close {
  position: fixed;
  top: 24px;
  right: 24px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: background-color 200ms ease, transform 200ms ease;
  outline: none;
}

.image-modal-close::before,
.image-modal-close::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 14px;
  height: 2px;
  background: currentColor;
  border-radius: 999px;
  transform-origin: center;
}

.image-modal-close::before {
  transform: translate(-50%, -50%) rotate(45deg);
}

.image-modal-close::after {
  transform: translate(-50%, -50%) rotate(-45deg);
}

.image-modal-close:hover,
.image-modal-close:focus-visible {
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  transform: scale(1.1);
}

.image-modal-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 100%;
  max-height: 100%;
}

.image-modal-img {
  display: block;
  max-width: 92vw;
  max-height: 90vh;
  width: auto;
  height: auto;
  object-fit: contain;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

/* Presentation canvas for transparent PNGs only — a background-color on
   the <img> itself shows through its transparent pixels without adding
   a wrapper, border, radius, shadow, or padding of its own. Toggled by
   image-modal.js after it detects transparency at open time. */
.image-modal-img.has-transparent-bg {
  background-color: var(--color-bg-primary);
}

.image-modal-caption {
  font-size: var(--text-sm);
  color: var(--color-text-inverse-muted);
  margin-top: var(--space-3);
  text-align: center;
  font-weight: 500;
}