:root {
  --primary: #9b1538;
  --primary-dark: #7a1129;
  --primary-light: #b51d41;
  --secondary: #10b981;
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #1a1a1a;
  --bg-card: #161616;
  --text-primary: #ffffff;
  --text-secondary: #a1a1aa;
  --text-tertiary: #71717a;
  --border-color: #27272a;
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.4);
  --radius-lg: 12px;
  --radius-xl: 16px;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.back-nav {
  position: fixed;
  top: var(--space-lg);
  left: var(--space-lg);
  z-index: 100;
}

.back-btn {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  text-decoration: none;
  transition: all 0.3s ease;
}

.back-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.hero-section {
  padding: var(--space-2xl) 0;
  text-align: center;
  background: linear-gradient(
    135deg,
    var(--bg-primary) 0%,
    var(--bg-secondary) 100%
  );
}

.case-header {
  max-width: 800px;
  margin: 0 auto;
}

.case-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.case-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

.case-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-xl) 0;
}

.meta-item {
  text-align: center;
}

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

.meta-value {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.hero-image {
  margin: var(--space-xl) 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-medium);
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
}

.content-section {
  padding: var(--space-2xl) 0;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
  align-items: start;
}

.sidebar {
  position: sticky;
  top: var(--space-lg);
  margin-top: var(--space-2xl);
}

.stats-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  backdrop-filter: blur(20px);
  margin-bottom: var(--space-lg);
}

.stat-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border-color);
}

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

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

.stat-value {
  font-weight: 600;
  color: var(--primary);
  font-size: 1.125rem;
}

.content-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.card-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.card-content p {
  margin-bottom: var(--space-md);
  color: var(--text-secondary);
  line-height: 1.7;
}

.card-content ul {
  list-style: none;
  margin: var(--space-md) 0;
}

.card-content li {
  position: relative;
  padding-left: var(--space-md);
  margin-bottom: var(--space-sm);
  color: var(--text-secondary);
}

.card-content li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 600;
}

.personas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-lg) 0;
}

.persona-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  backdrop-filter: blur(20px);
}

.persona-avatar {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  font-size: 2rem;
  color: white;
}

.persona-avatar img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
}

.persona-name {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.persona-desc {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: var(--space-md);
}

.process-timeline {
  position: relative;
  padding-left: var(--space-lg);
}

.process-timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), var(--primary-dark));
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-xl);
  padding: var(--space-lg);
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

.timeline-dot {
  position: absolute;
  left: -27px;
  top: var(--space-lg);
  width: 12px;
  height: 12px;
  background: var(--primary);
  border-radius: 50%;
  border: 3px solid var(--bg-primary);
}

.timeline-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--primary);
}

.image-showcase {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-lg) 0;
}

.showcase-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
}

.showcase-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-medium);
}

.showcase-item img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  object-position: top;
  display: block;
  transition: transform 0.3s ease;
}

.showcase-item:hover img {
  transform: scale(1.02);
}

.showcase-caption {
  padding: var(--space-md);
  background: var(--bg-card);
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-align: center;
}

.showcase-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.showcase-item:hover .showcase-overlay {
  opacity: 1;
}

.view-full-btn {
  background: var(--primary);
  color: white;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.results-highlight {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  text-align: center;
  margin: var(--space-xl) 0;
}

.results-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: white;
}

.results-subtitle {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-lg);
}

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

.result-item {
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  backdrop-filter: blur(10px);
}

.result-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: white;
  display: block;
}

.result-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
  margin-top: var(--space-sm);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.tool-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  text-align: center;
  backdrop-filter: blur(20px);
}

.tool-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-sm);
}

.tool-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

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

/* Lightbox Gallery */
.lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  z-index: 1000;
  backdrop-filter: blur(10px);
}

.lightbox.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-content {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-lg);
  max-width: 95%;
  max-height: 95%;
  width: 100%;
  height: 100%;
}

.lightbox-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.lightbox-image-container {
  position: relative;
  width: 100%;
  height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  overflow: hidden;
}

.lightbox-image {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
  cursor: grab;
  transition: transform 0.3s ease;
  transform-origin: center center;
}

.lightbox-image.dragging {
  cursor: grabbing;
}

.lightbox-nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.lightbox-btn {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
}

.lightbox-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.lightbox-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.lightbox-counter {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin: 0 var(--space-sm);
}

.lightbox-sidebar {
  display: flex;
  flex-direction: column;
  width: 200px;
  height: 100%;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
}

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

.lightbox-back {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  text-decoration: none;
}

.lightbox-back:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.zoom-controls {
  display: flex;
  flex-direction: row;
  gap: 8px;
  flex-wrap: wrap;
}

.zoom-btn {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  padding: var(--space-sm);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}

.zoom-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.zoom-info {
  color: var(--text-secondary);
  font-size: 0.75rem;
  text-align: center;
  margin-top: 8px;
}

.gallery-thumbnails {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  overflow-y: auto;
  max-height: calc(100% - 150px);
  padding-right: 8px;
}

.gallery-thumbnails::-webkit-scrollbar {
  width: 4px;
}

.gallery-thumbnails::-webkit-scrollbar-track {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
}

.gallery-thumbnails::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: var(--radius-lg);
}

.gallery-thumbnails::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

.gallery-thumb {
  width: 70px;
  height: 70px;
  object-fit: cover;
  object-position: top;
  border-radius: var(--radius-lg);
  cursor: pointer;
  opacity: 0.6;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  flex-shrink: 0;
}

.gallery-thumb:hover,
.gallery-thumb.active {
  opacity: 1;
  border-color: var(--primary);
}

/* Responsive Design */
@media (max-width: 768px) {
  .content-grid {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    order: -1;
  }

  .back-nav {
    position: static;
    margin-bottom: var(--space-lg);
  }

  .hero-section {
    padding: var(--space-lg) 0;
  }

  .case-meta {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

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

  .results-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .tools-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .showcase-item img {
    height: 300px;
  }

  .lightbox-nav {
    flex-direction: column;
    gap: var(--space-md);
  }

  .lightbox-image {
    max-height: 60vh;
  }

  .gallery-thumbnails {
    max-width: 100%;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: var(--space-sm);
  }
}