/**
 * Reusable Animations for VelKaja Portfolio
 * Modern CSS animations and 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(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* ========================================
   SLIDE ANIMATIONS
   ======================================== */

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

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

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

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

/* ========================================
   ZOOM ANIMATIONS
   ======================================== */

@keyframes zoomIn {
  from {
    opacity: 0;
    transform: scale(0.5);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes zoomOut {
  from {
    opacity: 1;
    transform: scale(1);
  }
  to {
    opacity: 0;
    transform: scale(0.5);
  }
}

/* ========================================
   BOUNCE ANIMATIONS
   ======================================== */

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-20px);
  }
  60% {
    transform: translateY(-10px);
  }
}

@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);
  }
}

/* ========================================
   ROTATE ANIMATIONS
   ======================================== */

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

@keyframes rotateIn {
  from {
    opacity: 0;
    transform: rotate(-200deg);
  }
  to {
    opacity: 1;
    transform: rotate(0);
  }
}

/* ========================================
   PULSE ANIMATIONS
   ======================================== */

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

@keyframes heartbeat {
  0%, 100% {
    transform: scale(1);
  }
  10%, 30% {
    transform: scale(0.9);
  }
  20%, 40%, 60%, 80% {
    transform: scale(1.1);
  }
  50%, 70% {
    transform: scale(1.05);
  }
}

/* ========================================
   SHAKE ANIMATIONS
   ======================================== */

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

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

/* ========================================
   SHIMMER/SHINE EFFECT
   ======================================== */

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

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

/* ========================================
   FLIP ANIMATIONS
   ======================================== */

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

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

/* ========================================
   GLOW EFFECT
   ======================================== */

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 5px rgba(37, 99, 235, 0.5);
  }
  50% {
    box-shadow: 0 0 20px rgba(37, 99, 235, 0.8), 0 0 30px rgba(37, 99, 235, 0.6);
  }
}

/* ========================================
   FLOATING EFFECT
   ======================================== */

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-15px);
  }
}

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

/* ========================================
   TYPING CURSOR BLINK
   ======================================== */

@keyframes blink {
  0%, 50% {
    border-color: transparent;
  }
  51%, 100% {
    border-color: currentColor;
  }
}

/* ========================================
   PROGRESS/LOADING ANIMATIONS
   ======================================== */

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

@keyframes progressBar {
  from {
    width: 0%;
  }
  to {
    width: 100%;
  }
}

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

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

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

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

.animate-fade-in-left {
  animation: fadeInLeft 0.6s ease-out;
}

.animate-fade-in-right {
  animation: fadeInRight 0.6s ease-out;
}

/* Slide Effects */
.animate-slide-in-left {
  animation: slideInLeft 0.6s ease-out;
}

.animate-slide-in-right {
  animation: slideInRight 0.6s ease-out;
}

.animate-slide-in-up {
  animation: slideInUp 0.6s ease-out;
}

.animate-slide-in-down {
  animation: slideInDown 0.6s ease-out;
}

/* Zoom Effects */
.animate-zoom-in {
  animation: zoomIn 0.5s ease-out;
}

.animate-zoom-out {
  animation: zoomOut 0.5s ease-out;
}

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

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

/* Rotate Effects */
.animate-rotate {
  animation: rotate 1s linear;
}

.animate-rotate-in {
  animation: rotateIn 0.6s ease-out;
}

/* Pulse Effects */
.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}

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

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

.animate-shake-y {
  animation: shakeY 0.5s ease-in-out;
}

/* Flip Effects */
.animate-flip-x {
  animation: flipX 0.6s ease-out;
}

.animate-flip-y {
  animation: flipY 0.6s ease-out;
}

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

.animate-float-slow {
  animation: floatSlow 4s ease-in-out infinite;
}

/* Glow Effect */
.animate-glow {
  animation: glow 2s ease-in-out infinite;
}

/* Shimmer Effect */
.shimmer-effect {
  position: relative;
  overflow: hidden;
}

.shimmer-effect::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  animation: shimmer 2s infinite;
}

/* Shine Effect */
.shine-effect {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.3) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  background-size: 200% auto;
  animation: shine 3s linear infinite;
}

/* ========================================
   ANIMATION DELAYS
   ======================================== */

.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }
.delay-600 { animation-delay: 0.6s; }
.delay-700 { animation-delay: 0.7s; }
.delay-800 { animation-delay: 0.8s; }
.delay-900 { animation-delay: 0.9s; }
.delay-1000 { animation-delay: 1s; }

/* ========================================
   ANIMATION DURATIONS
   ======================================== */

.duration-fast { animation-duration: 0.3s; }
.duration-normal { animation-duration: 0.6s; }
.duration-slow { animation-duration: 1s; }
.duration-slower { animation-duration: 1.5s; }
.duration-slowest { animation-duration: 2s; }

/* ========================================
   ANIMATION ITERATIONS
   ======================================== */

.iterate-1 { animation-iteration-count: 1; }
.iterate-2 { animation-iteration-count: 2; }
.iterate-3 { animation-iteration-count: 3; }
.iterate-infinite { animation-iteration-count: infinite; }

/* ========================================
   ANIMATION TIMING FUNCTIONS
   ======================================== */

.ease-linear { animation-timing-function: linear; }
.ease-in { animation-timing-function: ease-in; }
.ease-out { animation-timing-function: ease-out; }
.ease-in-out { animation-timing-function: ease-in-out; }

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

.transition-all {
  transition: all 0.3s ease;
}

.transition-fast {
  transition: all 0.15s ease;
}

.transition-slow {
  transition: all 0.5s ease;
}

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

.transition-opacity {
  transition: opacity 0.3s ease;
}

.transition-colors {
  transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

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

.hover-lift:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

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

.hover-shrink:hover {
  transform: scale(0.95);
}

.hover-rotate:hover {
  transform: rotate(5deg);
}

.hover-glow:hover {
  box-shadow: 0 0 20px rgba(37, 99, 235, 0.6);
}

/* ========================================
   SCROLL ANIMATIONS
   ======================================== */

.scroll-fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   LOADING ANIMATIONS
   ======================================== */

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(37, 99, 235, 0.2);
  border-top-color: #2563eb;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.pulse-loader {
  width: 40px;
  height: 40px;
  background-color: #2563eb;
  border-radius: 50%;
  animation: pulse 1.5s ease-in-out infinite;
}

/* ========================================
   ACCESSIBILITY - RESPECT REDUCED MOTION
   ======================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}