/* Animations and Transitions */

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

.fade-in {
  animation: fadeIn var(--transition-slow) ease-out;
}

/* Slide Up */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-up {
  animation: slideUp var(--transition-slow) ease-out;
}

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

.slide-in-left {
  animation: slideInLeft var(--transition-slow) ease-out;
}

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

.slide-in-right {
  animation: slideInRight var(--transition-slow) ease-out;
}

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

.scale-in {
  animation: scaleIn var(--transition-base) ease-out;
}

/* Gradient Animation */
@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.gradient-animate {
  background-size: 200% 200%;
  animation: gradientShift 8s ease infinite;
}

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

.float {
  animation: float 3s ease-in-out infinite;
}

/* Pulse Animation */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

.pulse {
  animation: pulse 2s ease-in-out infinite;
}

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

.shimmer {
  background: linear-gradient(
    90deg,
    var(--color-surface) 0%,
    var(--color-surface-dark) 50%,
    var(--color-surface) 100%
  );
  background-size: 1000px 100%;
  animation: shimmer 2s infinite linear;
}

/* Hover Effects */
.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.hover-glow {
  position: relative;
  transition: all var(--transition-base);
}

.hover-glow::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: -1;
  filter: blur(10px);
}

.hover-glow:hover::before {
  opacity: 0.7;
}

/* Stagger Animation for Lists */
.stagger-item {
  opacity: 0;
  animation: slideUp var(--transition-slow) ease-out forwards;
}

.stagger-item:nth-child(1) { animation-delay: 0.1s; }
.stagger-item:nth-child(2) { animation-delay: 0.2s; }
.stagger-item:nth-child(3) { animation-delay: 0.3s; }
.stagger-item:nth-child(4) { animation-delay: 0.4s; }
.stagger-item:nth-child(5) { animation-delay: 0.5s; }
.stagger-item:nth-child(6) { animation-delay: 0.6s; }

/* Loading Spinner */
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-surface);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* Page Transition */
.page-enter {
  animation: fadeIn 0.3s ease-out;
}

/* Smooth Scroll Behavior */
html {
  scroll-behavior: smooth;
}

/* Focus States with Animation */
*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  transition: outline-offset var(--transition-fast);
}

/* Delay Utilities */
.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.delay-500 { animation-delay: 500ms; }

/* Respect User Preferences - Already in reset.css but reinforced here */
@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;
  }

  .gradient-animate,
  .float,
  .pulse,
  .shimmer {
    animation: none !important;
  }
}