/* ========================================
   Animations - Keyframes & Transitions
   ======================================== */

/* ========== FADE ANIMATIONS ========== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

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

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

/* ========== SLIDE ANIMATIONS ========== */
@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

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

/* ========== SCALE ANIMATIONS ========== */
@keyframes zoomIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

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

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.9;
    transform: scale(1.05);
  }
}

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

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

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

@keyframes float-slow {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

@keyframes floatHorizontal {
  0%, 100% {
    transform: translateX(0);
  }
  50% {
    transform: translateX(10px);
  }
}

/* ========== BOUNCE ANIMATIONS ========== */
@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  25% {
    transform: translateY(-10px);
  }
  50% {
    transform: translateY(0);
  }
  75% {
    transform: translateY(-5px);
  }
}

@keyframes bounceIn {
  0% {
    opacity: 0;
    transform: scale(0.3);
  }
  50% {
    opacity: 1;
    transform: scale(1.05);
  }
  70% {
    transform: scale(0.9);
  }
  100% {
    transform: scale(1);
  }
}

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

@keyframes shakeVertical {
  0%, 100% {
    transform: translateY(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateY(-5px);
  }
  20%, 40%, 60%, 80% {
    transform: translateY(5px);
  }
}

/* ========== FLIP ANIMATIONS ========== */
@keyframes flipInX {
  from {
    transform: perspective(400px) rotateX(90deg);
    opacity: 0;
  }
  to {
    transform: perspective(400px) rotateX(0deg);
    opacity: 1;
  }
}

@keyframes flipInY {
  from {
    transform: perspective(400px) rotateY(90deg);
    opacity: 0;
  }
  to {
    transform: perspective(400px) rotateY(0deg);
    opacity: 1;
  }
}

/* ========== MODAL SPECIFIC ========== */
@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-50px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes modalSlideOut {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateY(50px) scale(0.95);
  }
}

/* ========== SHIMMER/LOADING ANIMATIONS ========== */
@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

@keyframes skeleton {
  0% {
    opacity: 0.6;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0.6;
  }
}

/* ========== PROGRESS ANIMATIONS ========== */
@keyframes progress {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* ========== NOTIFICATION ANIMATIONS ========== */
@keyframes slideInFromRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

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

/* ========================================
   Animation Utility Classes
   ======================================== */

/* Fade */
.animate-fade-in {
  animation: fadeIn 0.5s ease forwards;
}

.animate-fade-out {
  animation: fadeOut 0.5s ease forwards;
}

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

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

/* Slide */
.animate-slide-in-up {
  animation: slideInUp 0.5s ease forwards;
}

.animate-slide-in-down {
  animation: slideInDown 0.5s ease forwards;
}

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

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

/* Scale */
.animate-zoom-in {
  animation: zoomIn 0.4s ease forwards;
}

.animate-zoom-out {
  animation: zoomOut 0.4s ease forwards;
}

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

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

.animate-spin-slow {
  animation: spinSlow 3s linear infinite;
}

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

.animate-float-slow {
  animation: float-slow 6s ease-in-out infinite;
}

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

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

/* Shake */
.animate-shake {
  animation: shake 0.5s ease;
}

.animate-shake-vertical {
  animation: shakeVertical 0.5s ease;
}

/* Shimmer/Loading */
.animate-shimmer {
  animation: shimmer 2s infinite;
  background: linear-gradient(
    to right,
    var(--color-gray-200) 0%,
    var(--color-gray-100) 50%,
    var(--color-gray-200) 100%
  );
  background-size: 2000px 100%;
}

.animate-skeleton {
  animation: skeleton 1.5s ease-in-out infinite;
}

/* Animation Delays */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-500 { animation-delay: 0.5s; }
.delay-700 { animation-delay: 0.7s; }
.delay-1000 { animation-delay: 1s; }

/* Animation Durations */
.duration-fast { animation-duration: 0.2s; }
.duration-base { animation-duration: 0.3s; }
.duration-slow { animation-duration: 0.5s; }
.duration-slower { animation-duration: 1s; }

/* Animation Fill Modes */
.fill-forwards { animation-fill-mode: forwards; }
.fill-backwards { animation-fill-mode: backwards; }
.fill-both { animation-fill-mode: both; }