/* ============================================
   ÉLITE — Animations & Transitions
   ============================================ */

/* ---- Keyframes ---- */

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

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

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

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

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

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

@keyframes slideInRight {
  from {
    transform: translateX(100%);
  }
  to {
    transform: translateX(0);
  }
}

@keyframes slideOutRight {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(100%);
  }
}

@keyframes slideInUp {
  from {
    transform: translateY(100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(var(--color-accent-rgb), 0.4);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(var(--color-accent-rgb), 0);
  }
}

@keyframes bounce {
  0%, 20%, 53%, 100% { transform: translateY(0); }
  40% { transform: translateY(-8px); }
  70% { transform: translateY(-4px); }
}

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

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

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

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateX(100%) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

@keyframes toastOut {
  from {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateX(100%) scale(0.9);
  }
}

@keyframes heroTextReveal {
  0% {
    opacity: 0;
    letter-spacing: 0.5em;
    filter: blur(10px);
  }
  100% {
    opacity: 1;
    letter-spacing: var(--ls-ultra);
    filter: blur(0);
  }
}

@keyframes heroSubtitleReveal {
  0% {
    opacity: 0;
    transform: translateY(15px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes countUp {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.5);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 0.5;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}

/* ---- Decorative ---- */
@keyframes decorPulse {
  0%, 100% { opacity: 0.03; }
  50% { opacity: 0.06; }
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ---- Animation Utility Classes ---- */

.animate-fadeIn {
  animation: fadeIn var(--duration-slow) var(--ease-out-expo) forwards;
}

.animate-fadeInUp {
  opacity: 0;
  animation: fadeInUp var(--duration-slow) var(--ease-out-expo) forwards;
}

.animate-fadeInDown {
  opacity: 0;
  animation: fadeInDown var(--duration-base) var(--ease-out-expo) forwards;
}

.animate-scaleIn {
  animation: scaleIn var(--duration-slow) var(--ease-out-back) forwards;
}

.animate-pulse {
  animation: pulse 0.4s var(--ease-out-back);
}

.animate-bounce {
  animation: bounce 0.6s ease;
}

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

.animate-spin {
  animation: spin 1s linear infinite;
}

/* ---- Staggered Entry ---- */
.stagger-item {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-slow) var(--ease-out-expo),
              transform var(--duration-slow) var(--ease-out-expo);
}

.stagger-item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays */
.stagger-item:nth-child(1) { transition-delay: 0ms; }
.stagger-item:nth-child(2) { transition-delay: 60ms; }
.stagger-item:nth-child(3) { transition-delay: 120ms; }
.stagger-item:nth-child(4) { transition-delay: 180ms; }
.stagger-item:nth-child(5) { transition-delay: 240ms; }
.stagger-item:nth-child(6) { transition-delay: 300ms; }
.stagger-item:nth-child(7) { transition-delay: 360ms; }
.stagger-item:nth-child(8) { transition-delay: 420ms; }
.stagger-item:nth-child(9) { transition-delay: 480ms; }
.stagger-item:nth-child(10) { transition-delay: 540ms; }
.stagger-item:nth-child(11) { transition-delay: 600ms; }
.stagger-item:nth-child(12) { transition-delay: 660ms; }

/* ---- Loading Skeleton ---- */
.skeleton {
  background: linear-gradient(90deg,
    var(--color-bg-tertiary) 25%,
    rgba(255, 255, 255, 0.05) 50%,
    var(--color-bg-tertiary) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

.skeleton-text {
  height: 1em;
  margin-bottom: var(--space-2);
  border-radius: var(--radius-xs);
}

.skeleton-image {
  width: 100%;
  aspect-ratio: 3/4;
  border-radius: var(--radius-lg);
}

/* ---- Hover Transition Utilities ---- */
.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 {
  transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
  box-shadow: var(--shadow-gold);
}

.hover-scale {
  transition: transform var(--transition-base);
}

.hover-scale:hover {
  transform: scale(1.03);
}

/* ---- Page Transition ---- */
.page-enter {
  animation: fadeIn var(--duration-slow) var(--ease-out-expo) forwards;
}

/* ---- Reduce 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;
  }

  .stagger-item {
    opacity: 1;
    transform: none;
    transition: none;
  }
}