/* ============================================================
   ANIMATIONS.CSS — Keyframes & Transitions
   ============================================================ */

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(1.4); }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-8px); }
}

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

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

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* Utility animation classes */
.fade-up   { animation: fadeUp 0.6s ease both; }
.fade-in   { animation: fadeIn 0.4s ease both; }
.slide-in  { animation: slideInRight 0.5s ease both; }

/* Staggered delays */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* Skeleton loading shimmer */
.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius);
}
.skeleton-text  { height: 14px; margin-bottom: 8px; }
.skeleton-title { height: 24px; margin-bottom: 12px; width: 60%; }
.skeleton-card  { height: 120px; }

/* Smooth page transitions */
#app > div {
  animation: fadeIn 0.3s ease;
}

/* Hover transitions */
.hover-lift { transition: transform 0.25s ease, box-shadow 0.25s ease; }
.hover-lift:hover { transform: translateY(-4px); box-shadow: var(--shadowmd); }

/* Scroll reveal (activated via JS IntersectionObserver) */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}