/* ============================================================
   CASE-STUDY.CSS — interactive project showcase
   ============================================================ */

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}

.case-card {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-2);
  border: 1px solid var(--line);
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
  transform-style: preserve-3d;
  will-change: transform;
}
.case-card:hover {
  border-color: rgba(0, 229, 255, 0.4);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.5), 0 0 30px rgba(124, 58, 237, 0.2);
}

/* "Video" media area — animated shimmer stands in for a reel */
.case-media {
  position: relative;
  height: 200px;
  background: linear-gradient(135deg, #15233f, #0c1426);
  overflow: hidden;
}
.media-b { background: linear-gradient(135deg, #2a1640, #100a22); }
.media-c { background: linear-gradient(135deg, #3a1030, #14081c); }

.case-shimmer {
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 30%, rgba(0,229,255,0.18) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.1s;
}
.case-card:hover .case-shimmer {
  animation: shimmer 1.6s ease-in-out infinite;
}
@keyframes shimmer {
  to { transform: translateX(100%); }
}

.case-cat {
  position: absolute;
  top: 1rem; left: 1rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.35rem 0.7rem;
  border-radius: 100px;
  background: rgba(5, 8, 22, 0.6);
  border: 1px solid var(--glass-brd);
  backdrop-filter: blur(8px);
}
.case-play {
  position: absolute;
  inset: 0;
  display: grid; place-items: center;
  font-size: 0.95rem; font-weight: 500;
  background: rgba(5, 8, 22, 0.45);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}
.case-card:hover .case-play { opacity: 1; }

.case-body { padding: 1.5rem; position: relative; }
.case-body h3 { font-size: 1.4rem; margin-bottom: 1.1rem; }

.case-metrics { display: flex; flex-direction: column; gap: 0.9rem; }
.metric {
  display: flex; align-items: baseline; gap: 0.6rem;
  font-family: var(--font-display);
}
.m-before { color: var(--muted); font-size: 1.3rem; }
.m-arrow { color: var(--neon); }
.m-after {
  font-size: 1.8rem; font-weight: 600;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.m-label { margin-left: auto; font-family: var(--font-body); font-size: 0.78rem; color: var(--muted); }

/* Animated chart bar fills when revealed */
.case-bar {
  height: 7px;
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
}
.case-bar span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 100px;
  background: var(--grad);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.5);
  transition: width 1.4s var(--ease);
}
.case-card.in-view .case-bar span { width: var(--w); }

/* Floating ROI chip */
.roi-float {
  display: inline-block;
  margin-top: 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #4ade80;
  padding: 0.4rem 0.8rem;
  border-radius: 100px;
  border: 1px solid rgba(74, 222, 128, 0.3);
  background: rgba(74, 222, 128, 0.06);
  transition: transform 0.35s var(--ease);
}
.case-card:hover .roi-float { transform: translateY(-4px); }