/* ========================================
   ANIMATIONS & EFFETS
   ======================================== */

/* Animations de base */
@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(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

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

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

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

/* Classes d'animation */
.fade-in {
  animation: fadeIn 0.5s ease-out;
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

.fade-in-down {
  animation: fadeInDown 0.6s ease-out;
}

.slide-in-left {
  animation: slideInLeft 0.5s ease-out;
}

.slide-in-right {
  animation: slideInRight 0.5s ease-out;
}

.scale-in {
  animation: scaleIn 0.4s ease-out;
}

.bounce {
  animation: bounce 1s infinite;
}

.pulse {
  animation: pulse 2s infinite;
}

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

/* Délais d'animation */
.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; }

/* Skeleton loader */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--gray-200) 25%,
    var(--gray-100) 50%,
    var(--gray-200) 75%
  );
  background-size: 2000px 100%;
  animation: shimmer 2s infinite;
  border-radius: var(--radius-lg);
}

.skeleton-text {
  height: 1rem;
  margin-bottom: 0.5rem;
}

.skeleton-title {
  height: 1.5rem;
  width: 60%;
  margin-bottom: 1rem;
}

.skeleton-image {
  height: 200px;
  width: 100%;
}

/* Hover effects */
.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.hover-scale {
  transition: transform 0.3s ease;
}

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

.hover-brightness {
  transition: filter 0.3s ease;
}

.hover-brightness:hover {
  filter: brightness(1.1);
}

/* Loading spinner */
.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner-sm {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

.spinner-lg {
  width: 60px;
  height: 60px;
  border-width: 6px;
}

/* Toast notification animation */
@keyframes toastSlideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

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

.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: white;
  padding: 1rem 1.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-2xl);
  display: flex;
  align-items: center;
  gap: 1rem;
  z-index: 9999;
  animation: toastSlideIn 0.3s ease-out;
}

.toast.hiding {
  animation: toastSlideOut 0.3s ease-in;
}

.toast.success {
  border-left: 4px solid var(--success);
}

.toast.error {
  border-left: 4px solid var(--danger);
}

.toast.warning {
  border-left: 4px solid var(--warning);
}

.toast.info {
  border-left: 4px solid var(--primary);
}

/* Modal animations */
@keyframes modalFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes modalSlideDown {
  from {
    transform: translateY(-50px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.modal {
  animation: modalFadeIn 0.3s ease-out;
}

.modal-content {
  animation: modalSlideDown 0.3s ease-out;
}

/* Progress bar */
@keyframes progressBar {
  from {
    width: 0%;
  }
  to {
    width: 100%;
  }
}

.progress-bar {
  height: 4px;
  background: var(--gray-200);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--primary);
  border-radius: var(--radius-full);
  transition: width 0.3s ease;
}

.progress-bar-animated .progress-bar-fill {
  animation: progressBar 2s ease-in-out;
}

/* Ripple effect */
.ripple {
  position: relative;
  overflow: hidden;
}

.ripple::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.ripple:active::after {
  width: 300px;
  height: 300px;
}

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

.gradient-animated {
  background: linear-gradient(
    -45deg,
    var(--primary),
    var(--accent),
    var(--secondary),
    var(--primary)
  );
  background-size: 400% 400%;
  animation: gradientShift 15s ease infinite;
}

/* Floating animation */
@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

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

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

.shake {
  animation: shake 0.5s;
}

/* Typing indicator */
@keyframes typingDot {
  0%, 60%, 100% {
    transform: translateY(0);
  }
  30% {
    transform: translateY(-10px);
  }
}

.typing-indicator {
  display: flex;
  gap: 4px;
}

.typing-dot {
  width: 8px;
  height: 8px;
  background: var(--gray-400);
  border-radius: 50%;
  animation: typingDot 1.4s infinite;
}

.typing-dot:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
  animation-delay: 0.4s;
}