/* ============================================
   CASE STUDIES SECTION - ENHANCED ANIMATIONS & EFFECTS
   ============================================ */

/* Section entrance with fade and scale */
#case-studies {
  position: relative;
}

#case-studies .section-head {
  animation: sectionHeadEnter 1s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

@keyframes sectionHeadEnter {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

#case-studies .eyebrow {
  animation: eyebrowPulse 2.5s ease-in-out 0.3s infinite;
}

@keyframes eyebrowPulse {
  0%, 100% {
    opacity: 1;
    letter-spacing: 0.12em;
  }
  50% {
    opacity: 0.8;
    letter-spacing: 0.15em;
  }
}

#case-studies h2 {
  background: linear-gradient(135deg, #fff 0%, #ffd3b0 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: titleGradientShimmer 4s ease-in-out 0.5s infinite;
}

@keyframes titleGradientShimmer {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

/* Cases grid with stagger */
.cases-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  animation: gridStaggerIn 1.2s cubic-bezier(0.2, 0.8, 0.2, 1) 0.3s both;
}

@keyframes gridStaggerIn {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Enhanced case cards */
.case-card {
  position: relative;
  background: linear-gradient(160deg, var(--surface), #161c26);
  border: 1px solid #364255;
  border-radius: var(--radius);
  padding: 1.8rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  overflow: visible;
  cursor: pointer;
  animation: caseCardEnter 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) both;
  z-index: 1;
  perspective: 1200px;
}

.case-card:nth-child(1) {
  animation-delay: 0.5s;
}
.case-card:nth-child(2) {
  animation-delay: 0.65s;
}
.case-card:nth-child(3) {
  animation-delay: 0.8s;
}

@keyframes caseCardEnter {
  from {
    opacity: 0;
    transform: translateY(40px) rotateX(-15deg) scale(0.9);
    filter: blur(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0) rotateX(0) scale(1);
    filter: blur(0);
  }
}

/* Glossy overlay effect */
.case-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.06), transparent 50%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
  border-radius: var(--radius);
}

.case-card:hover::before {
  opacity: 1;
}

/* Light sweep animation */
.case-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  animation: lightSweep 5s ease-in-out infinite;
  pointer-events: none;
}

@keyframes lightSweep {
  0%, 100% {
    left: -100%;
  }
  50% {
    left: 100%;
  }
}

.case-card:hover {
  transform: translateY(-16px) scale(1.06);
  border-color: rgba(255, 122, 26, 0.7);
  box-shadow: 0 40px 100px rgba(255, 122, 26, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  background: linear-gradient(160deg, rgba(255, 122, 26, 0.12) 0%, #1a2131 100%);
  z-index: 10;
}

/* Sibling cards when one is hovered */
.case-card:has(~ .case-card:hover),
.cases-grid:has(.case-card:hover) .case-card:not(:hover) {
  transform: translateY(12px) scale(0.94);
  opacity: 0.65;
  z-index: 0;
  filter: brightness(0.9);
}

/* Tag styling with pulse effect */
.case-card .tag {
  display: inline-block;
  margin-bottom: 0.8rem;
  padding: 0.35rem 0.75rem;
  background: linear-gradient(135deg, rgba(255, 122, 26, 0.15), rgba(68, 110, 255, 0.1));
  border: 1px solid rgba(255, 122, 26, 0.35);
  border-radius: 999px;
  color: #ffd3b0;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: all 0.3s ease;
  animation: tagGlow 2s ease-in-out 0.8s infinite;
}

@keyframes tagGlow {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(255, 122, 26, 0.3);
  }
  50% {
    box-shadow: 0 0 12px 0 rgba(255, 122, 26, 0.15);
  }
}

.case-card:hover .tag {
  background: linear-gradient(135deg, rgba(255, 122, 26, 0.25), rgba(68, 110, 255, 0.15));
  border-color: rgba(255, 122, 26, 0.6);
  box-shadow: 0 0 16px rgba(255, 122, 26, 0.4);
  transform: scale(1.05);
}

/* Title animation */
.case-card h3 {
  font-size: 1.25rem;
  color: #f8fbff;
  margin: 0 0 0.8rem;
  transition: all 0.3s ease;
  line-height: 1.4;
  animation: titleSlideIn 0.6s ease-out both;
}

@keyframes titleSlideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.case-card:hover h3 {
  color: #ffd3b0;
  transform: translateX(4px);
}

/* Description text animation */
.case-card > p {
  color: #b8c4d6;
  font-size: 0.95rem;
  line-height: 1.65;
  margin: 0 0 1rem;
  transition: color 0.3s ease;
  animation: descriptionFadeIn 0.8s ease-out 0.1s both;
}

@keyframes descriptionFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.case-card:hover > p {
  color: #c4d0e2;
}

/* List items with stagger */
.case-card ul {
  margin: 0;
  padding-left: 1rem;
  color: #dbe4f1;
  list-style: none;
}

.case-card li {
  margin-bottom: 0.5rem;
  padding-left: 1.2rem;
  position: relative;
  transition: all 0.3s ease;
  font-size: 0.9rem;
  line-height: 1.5;
  animation: listItemEnter 0.6s ease-out both;
}

.case-card li:nth-child(1) {
  animation-delay: 0.15s;
}
.case-card li:nth-child(2) {
  animation-delay: 0.25s;
}
.case-card li:nth-child(3) {
  animation-delay: 0.35s;
}

@keyframes listItemEnter {
  from {
    opacity: 0;
    transform: translateX(-15px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Animated bullet points */
.case-card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ff9a4d, #ffd3b0);
  box-shadow: 0 0 0 3px rgba(255, 122, 26, 0.15);
  transition: all 0.3s ease;
}

.case-card:hover li::before {
  box-shadow: 0 0 8px rgba(255, 122, 26, 0.4);
  transform: scale(1.3);
}

.case-card:hover li {
  color: #f0f5fa;
  transform: translateX(2px);
}

/* Responsive adjustments */
@media (max-width: 1200px) {
  .cases-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  
  .case-card {
    padding: 1.5rem;
  }
  
  .case-card:hover {
    transform: translateY(-14px) scale(1.05);
  }
  
  .cases-grid:has(.case-card:hover) .case-card:not(:hover) {
    transform: translateY(10px) scale(0.95);
  }
}

@media (max-width: 768px) {
  .cases-grid {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }
  
  .case-card {
    padding: 1.3rem;
  }
  
  .case-card h3 {
    font-size: 1.1rem;
  }
  
  #case-studies h2 {
    font-size: clamp(1.5rem, 3vw, 2.2rem);
  }
  
  .case-card:hover {
    transform: translateY(-10px) scale(1.03);
  }
  
  .cases-grid:has(.case-card:hover) .case-card:not(:hover) {
    transform: translateY(6px) scale(0.97);
    opacity: 0.7;
  }
}

/* Accessibility - reduce motion */
@media (prefers-reduced-motion: reduce) {
  .case-card,
  .cases-grid,
  .case-card h3,
  .case-card li,
  #case-studies h2 {
    animation: none !important;
    transition: none !important;
  }
}