/* ============================================================
   FEATURED PROJECTS CAROUSEL
   ============================================================ */
.carousel-section {
  position: relative;
  margin-bottom: 2.25rem;
}
.carousel-viewport {
  overflow: hidden;
  padding: 0.5rem 0;
}
.carousel-track {
  display: flex;
  gap: 1.25rem;
  will-change: transform;
}

.carousel-track .card {
  flex: 0 0 280px;
  transition: transform 0.35s ease, opacity 0.35s ease;
  user-select: none;
}
.carousel-track .card.active {
  transform: scale(1.08);
  box-shadow: var(--shadow);
}
.carousel-track .card:not(.active) {
  opacity: 0.7;
  transform: scale(0.95);
}

/* Overlaid buttons */
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 1.3rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  opacity: 0.8;
  transition: opacity 0.15s, box-shadow 0.15s, transform 0.15s;
}
.carousel-btn:hover { opacity: 1; box-shadow: var(--shadow); }
.carousel-btn:active { transform: translateY(-50%) scale(0.95); }
.carousel-btn--prev { left: -20px; }
.carousel-btn--next { right: -20px; }

/* Dots */
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1rem;
}
.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}
.carousel-dot.active {
  background: var(--accent);
  border-color: var(--accent);
  transform: scale(1.3);
}
.carousel-dot:hover {
  border-color: var(--accent);
}

/* Responsive: buttons stay visible, smaller on mobile */
@media (max-width: 640px) {
  .carousel-track .card { flex: 0 0 260px; }
  .carousel-track .card.active { transform: scale(1.05); }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .carousel-track { transition: none; }
  .carousel-track .card { transition: none; }
}