/* Global motion system - reusable animation classes. GPU-friendly. */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: none;
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.22, 0.61, 0.36, 1), transform 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

.page-enter {
  opacity: 0;
  animation: pageFadeIn 0.4s ease forwards;
}
@keyframes pageFadeIn {
  to { opacity: 1; }
}

.btn-motion {
  transition: transform 150ms ease, box-shadow 150ms ease;
  transform-origin: center;
}
.btn-motion:hover {
  transform: scale(1.03);
}
.btn-motion:active {
  transform: scale(0.97);
}

.btn-ripple {
  position: relative;
  overflow: hidden;
}
.btn-ripple::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--x, 50%) var(--y, 50%), rgba(255,255,255,0.15) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}
.btn-ripple:active::after {
  opacity: 1;
}

.card-motion {
  transition: transform 200ms ease-out, box-shadow 200ms ease-out;
}
.card-motion:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.25), 0 8px 10px -6px rgba(0, 0, 0, 0.2);
}

.sidebar-nav a {
  position: relative;
  transition: background-color 200ms ease, color 200ms ease;
}
.sidebar-nav a.sidebar-active {
  background-color: rgba(99, 102, 241, 0.2);
  color: rgb(129, 140, 248);
}
.sidebar-nav a.sidebar-active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  border-radius: 0 2px 2px 0;
  background: rgb(99, 102, 241);
  animation: sidebarAccentIn 0.25s ease;
}
@keyframes sidebarAccentIn {
  from { opacity: 0; transform: translateY(-50%) scaleY(0.5); }
  to { opacity: 1; transform: translateY(-50%) scaleY(1); }
}

.table-row-motion {
  transition: background-color 150ms ease, transform 150ms ease;
}
.table-row-motion:hover {
  background-color: rgba(31, 41, 55, 0.6);
  transform: scale(1.005);
  transform-origin: center;
}

.btn-add-feedback {
  transition: transform 150ms ease;
}
.btn-add-feedback:active {
  transform: scale(0.92);
}

.skeleton {
  background: linear-gradient(90deg, rgba(31, 41, 55, 0.6) 25%, rgba(55, 65, 81, 0.4) 50%, rgba(31, 41, 55, 0.6) 75%);
  background-size: 200% 100%;
  animation: skeletonShimmer 1.2s ease-in-out infinite;
  border-radius: 0.5rem;
}
@keyframes skeletonShimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.gradient-animated {
  background-size: 400% 400%;
  animation: gradientShift 15s ease infinite;
}
@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.empty-state {
  text-align: center;
  padding: 2.5rem 1.5rem;
  border-radius: 1rem;
  border: 1px solid rgba(55, 65, 81, 0.5);
  background: rgba(18, 24, 38, 0.5);
}
.empty-state-icon {
  width: 3rem;
  height: 3rem;
  margin: 0 auto 1rem;
  opacity: 0.6;
}
.empty-state-title {
  font-size: 1rem;
  font-weight: 500;
  color: rgb(156, 163, 175);
  margin-bottom: 0.25rem;
}
.empty-state-text {
  font-size: 0.875rem;
  color: rgb(107, 114, 128);
  margin-bottom: 1rem;
}