/* ===================================
   Case Studies - Stylesheet
   =================================== */

/* Case Study Layout
   ========================================================================== */
.case-study-hero {
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.case-study-header {
  margin-bottom: 3rem;
}

.case-study-title {
  /* Match home hero “Elvira” styling */
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
  color: var(--fg);
}

.case-study-meta {
  display: grid;
  gap: 1rem;
  color: var(--mono11);
  margin-bottom: 2rem;
}

.case-study-meta strong {
  color: var(--fg);
}

/* Case Study Content
   ========================================================================== */
.case-study-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
}

.case-study-content h2 {
  font-size: 1.8rem;
  margin: 3rem 0 1rem;
  color: var(--fg);
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.01em;
}

.case-study-content h3 {
  font-size: 1.4rem;
  margin: 2rem 0 1rem;
  color: var(--fg);
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.01em;
}

.case-study-content p {
  line-height: 1.6;
  margin-bottom: 1rem;
  color: var(--mono12);
}

.case-study-content ul {
  margin: 1rem 0 1rem 2rem;
  line-height: 1.6;
  color: var(--mono12);
}

.case-study-content li {
  color: var(--mono12);
  margin-bottom: 0.5rem;
}

.case-study-content strong {
  color: var(--fg);
  font-weight: 600;
}

.case-study-content em {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: calc(1em + 1px);
  color: var(--mono11);
}

/* Blockquotes
   ========================================================================== */
.case-study-content blockquote {
  border-left: 3px solid var(--mono8);
  padding-left: 1.5rem;
  margin: 1.5rem 0;
  font-style: italic;
  color: var(--mono11);
}

.case-study-content blockquote p {
  color: var(--mono11);
}

/* Tables
   ========================================================================== */
.case-study-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  overflow-x: auto;
  display: block;
}

.case-study-content th {
  background: var(--mono3);
  padding: 0.75rem;
  text-align: left;
  border-bottom: 2px solid var(--mono5);
  font-weight: 600;
  color: var(--fg);
}

.case-study-content td {
  padding: 0.75rem;
  border-bottom: 1px solid var(--mono4);
  color: var(--mono12);
}

.case-study-content tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

/* Images
   ========================================================================== */
.case-study-content img {
  max-width: 100%;
  height: auto;
  margin: 2rem 0;
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* Transparent variant for hero media images (no bg/border) */
.case-study-hero .media img.transparent {
  background: transparent;
  border: none;
}

.case-study-content figure {
  margin: 2rem 0;
}

.case-study-content figcaption {
  margin-top: 0.5rem;
  text-align: center;
  color: var(--mono10);
  font-size: var(--text-s);
  font-style: italic;
}

/* Lightbox (image zoom) */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 24px;
}

.lightbox-overlay.is-open {
  display: flex;
}

.lightbox-content {
  position: relative;
  max-height: 92vh;
  /* Allow content wider than viewport so tall, wide diagrams use height */
  max-width: none;
  width: auto;
  background: var(--mono2);
  border: 1px solid var(--mono5);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.lightbox-img-wrap {
  position: relative;
  display: block;
  width: auto;
  height: auto;
  cursor: zoom-in;
}

.lightbox-img {
  width: auto;
  height: auto;
  max-height: 92vh; /* Fit by height; width can overflow (pannable) */
  max-width: none;
  user-select: none;
  -webkit-user-drag: none;
  transition: transform var(--transition-xx) ease;
}

.lightbox-img.is-zoomed {
  cursor: zoom-out;
}

/* Horizontal scroll container for very wide diagrams */
.scroll-x {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--mono5);
  border-radius: var(--radius);
  background: var(--mono2);
}

.scroll-x img {
  display: block;
  max-width: none; /* allow full intrinsic width for horizontal scroll */
  height: auto;
  margin: 0; /* inner image should not add extra margins */
}

.lightbox-close {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(16, 39, 60, 0.8);
  color: var(--fg);
  border: 1px solid var(--mono5);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
}

.zoomable {
  cursor: zoom-in;
}

/* Grid galleries inside case studies */
/* (Reverted custom gallery wrappers to keep original simple layout) */

/* Videos in case studies */
.case-study-content video {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  margin: 1.5rem 0;
  border-radius: var(--radius);
  border: 1px solid var(--mono5);
  background: var(--mono2);
}

/* Comparison blocks */
.comparison-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 1rem 0 2rem;
}

@media (min-width: 880px) {
  .comparison-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.comparison-card {
  background: var(--mono2);
  border: 1px solid var(--mono4);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
}

.comparison-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  font-family: var(--font-display);
  font-weight: 600;
}

.comparison-card ul {
  margin: 0.25rem 0 0.5rem 1.25rem;
}

/* Navigation
   ========================================================================== */
.back-link {
  display: inline-block;
  margin-bottom: 2rem;
  color: var(--mono11);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-xx);
}

.back-link:hover {
  color: var(--fg);
  text-decoration: none;
}

.back-link::before {
  content: "← ";
  display: inline-block;
  transition: transform var(--transition-xx);
}

.back-link:hover::before {
  transform: translateX(-3px);
}

/* Dividers
   ========================================================================== */
.case-study-content hr {
  border: none;
  border-top: 1px solid var(--mono5);
  margin: 3rem 0;
}

/* Special Sections
   ========================================================================== */
.tldr-section {
  background: var(--mono2);
  padding: 1.5rem;
  border-radius: var(--radius);
  margin: 2rem 0;
  border: 1px solid var(--mono4);
}

.tldr-section h2 {
  margin-top: 0;
  color: var(--fg);
  font-size: 1.5rem;
}

.tldr-section p {
  color: var(--mono12);
  margin-bottom: 0;
}

/* Links
   ========================================================================== */
.figma-link {
  display: inline-flex;
  align-items: center;
  color: var(--fg);
  text-decoration: underline;
  text-decoration-color: var(--mono8);
  text-underline-offset: 2px;
  font-weight: 500;
  margin: 1rem 0;
  transition: text-decoration-color var(--transition-xx);
}

.figma-link:hover {
  text-decoration-color: var(--mono11);
}

.case-study-content a {
  color: var(--fg);
  text-decoration: underline;
  text-decoration-color: var(--mono8);
  text-underline-offset: 2px;
  transition: text-decoration-color var(--transition-xx);
}

.case-study-content a:hover {
  text-decoration-color: var(--mono11);
}

/* Responsive Design
   ========================================================================== */
@media (max-width: 768px) {
  .case-study-hero {
    padding: 2rem 1rem;
  }
  
  .case-study-content {
    padding: 1rem;
  }
  
  .case-study-content h2 {
    font-size: 1.5rem;
    margin: 2rem 0 0.75rem;
  }
  
  .case-study-content h3 {
    font-size: 1.25rem;
  }
  
  .case-study-content table {
    font-size: var(--text-s);
  }
  
  .case-study-content th,
  .case-study-content td {
    padding: 0.5rem;
  }
}