css/animations.css

/* animations.css - Premium Animation System */

/* ========== KEYFRAME ANIMATIONS ========== */

/* Fade In */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Fade In Up */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Fade In Down */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Slide In Right */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Slide In Left */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Scale In */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Spin */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Pulse */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* Bounce */
@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* Shake */
@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-5px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(5px);
  }
}

/* Shimmer (Loading Effect) */
@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

/* Progress Bar */
@keyframes progress {
  from {
    width: 0%;
  }
  to {
    width: 100%;
  }
}

/* ========== ANIMATION UTILITY CLASSES ========== */

/* Fade Animations */
.animate-fadeIn {
  animation: fadeIn 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-fadeInUp {
  animation: fadeInUp 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-fadeInDown {
  animation: fadeInDown 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Slide Animations */
.animate-slideInRight {
  animation: slideInRight 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-slideInLeft {
  animation: slideInLeft 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Scale Animation */
.animate-scaleIn {
  animation: scaleIn 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Spin Animation */
.animate-spin {
  animation: spin 1s linear infinite;
}

.animate-spin-slow {
  animation: spin 2s linear infinite;
}

/* Pulse Animation */
.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Bounce Animation */
.animate-bounce {
  animation: bounce 1s ease-in-out infinite;
}

/* Shake Animation */
.animate-shake {
  animation: shake 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Shimmer Animation */
.animate-shimmer {
  background: linear-gradient(
    90deg,
    #f1f5f9 0%,
    #e2e8f0 50%,
    #f1f5f9 100%
  );
  background-size: 1000px 100%;
  animation: shimmer 2s infinite;
}

[data-theme="dark"] .animate-shimmer {
  background: linear-gradient(
    90deg,
    #1e293b 0%,
    #334155 50%,
    #1e293b 100%
  );
}

/* ========== TRANSITION UTILITIES ========== */

.transition-none {
  transition: none !important;
}

.transition-all {
  transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1) !important;
}

.transition-fast {
  transition: all 150ms cubic-bezier(0.4, 0, 0.2, 1) !important;
}

.transition-slow {
  transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1) !important;
}

/* ========== HOVER EFFECTS ========== */

.hover-lift {
  transition: transform 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-lift:hover {
  transform: translateY(-2px);
}

.hover-scale {
  transition: transform 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-scale:hover {
  transform: scale(1.05);
}

.hover-shadow {
  transition: box-shadow 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

.hover-shadow:hover {
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.12);
}

/* ========== LOADING STATES ========== */

.skeleton {
  background: linear-gradient(
    90deg,
    #f1f5f9 0%,
    #e2e8f0 50%,
    #f1f5f9 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 8px;
}

[data-theme="dark"] .skeleton {
  background: linear-gradient(
    90deg,
    #1e293b 0%,
    #334155 50%,
    #1e293b 100%
  );
}

.skeleton-text {
  height: 16px;
  margin-bottom: 8px;
}

.skeleton-title {
  height: 24px;
  width: 60%;
  margin-bottom: 12px;
}

.skeleton-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

.skeleton-card {
  height: 200px;
  border-radius: 12px;
}

/* ========== STAGGER ANIMATIONS ========== */

.stagger-item {
  animation: fadeInUp 400ms cubic-bezier(0.4, 0, 0.2, 1);
  animation-fill-mode: both;
}

.stagger-item:nth-child(1) { animation-delay: 0ms; }
.stagger-item:nth-child(2) { animation-delay: 50ms; }
.stagger-item:nth-child(3) { animation-delay: 100ms; }
.stagger-item:nth-child(4) { animation-delay: 150ms; }
.stagger-item:nth-child(5) { animation-delay: 200ms; }
.stagger-item:nth-child(6) { animation-delay: 250ms; }
.stagger-item:nth-child(7) { animation-delay: 300ms; }
.stagger-item:nth-child(8) { animation-delay: 350ms; }

/* ========== PAGE TRANSITIONS ========== */

.page-enter {
  opacity: 0;
  transform: translateY(20px);
}

.page-enter-active {
  opacity: 1;
  transform: translateY(0);
  transition: all 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

.page-exit {
  opacity: 1;
  transform: translateY(0);
}

.page-exit-active {
  opacity: 0;
  transform: translateY(-20px);
  transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========== REDUCED MOTION ========== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .animate-fadeIn,
  .animate-fadeInUp,
  .animate-fadeInDown,
  .animate-slideInRight,
  .animate-slideInLeft,
  .animate-scaleIn,
  .animate-spin,
  .animate-pulse,
  .animate-bounce,
  .animate-shake,
  .animate-shimmer,
  .skeleton,
  .stagger-item {
    animation: none !important;
  }
  
  .hover-lift:hover,
  .hover-scale:hover {
    transform: none !important;
  }
}