/* Custom Styles & Component Enhancements */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.25s ease-out forwards;
}

/* Category Filter Button */
.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.4rem 0.85rem;
  border-radius: 9999px;
  background-color: rgba(30, 41, 59, 0.6);
  border: 1px solid rgba(51, 65, 85, 0.6);
  color: #94a3b8;
  font-weight: 500;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
}

.filter-btn:hover {
  background-color: rgba(51, 65, 85, 0.8);
  color: #f1f5f9;
  border-color: rgba(100, 116, 139, 0.8);
}

.filter-btn.active {
  background: linear-gradient(135deg, #0e8ce9 0%, #6366f1 100%);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(14, 140, 233, 0.3);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: rgba(15, 23, 42, 0.6);
}
::-webkit-scrollbar-thumb {
  background: rgba(51, 65, 85, 0.8);
  border-radius: 9999px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(100, 116, 139, 1);
}

/* Card hover glow */
.file-card {
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.file-card:hover {
  transform: translateY(-2px);
  border-color: rgba(56, 168, 247, 0.4);
  box-shadow: 0 12px 24px -10px rgba(14, 140, 233, 0.15);
}

/* Drag hover effect on dropzone */
#dropzone.drag-active {
  border-color: #38a8f7 !important;
  background-color: rgba(14, 140, 233, 0.1) !important;
  transform: scale(1.01);
}