/**
 * Galactic Conquest - Animation Library
 * Reusable CSS animations for modern UI effects
 */

/* ==========================================
   KEYFRAME ANIMATIONS
   ========================================== */

/* Fade In */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* Fade In Down */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

/* Slide In Up */
@keyframes slideInUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

/* Slide In Down */
@keyframes slideInDown {
  from {
    transform: translateY(-100%);
  }
  to {
    transform: translateY(0);
  }
}

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

/* Pulse */
@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* Pulse Glow */
@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.3);
  }
  50% {
    box-shadow: 0 0 40px rgba(0, 217, 255, 0.6);
  }
}

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

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

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

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

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

/* Starfield Background Animation */
@keyframes starfield {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(-2000px);
  }
}

/* Neon Flicker */
@keyframes neonFlicker {
  0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% {
    text-shadow:
      0 0 10px rgba(0, 217, 255, 0.8),
      0 0 20px rgba(0, 217, 255, 0.6),
      0 0 30px rgba(0, 217, 255, 0.4);
  }
  20%, 24%, 55% {
    text-shadow: none;
  }
}

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

.animate-fadeIn {
  animation: fadeIn 0.6s ease-out;
}

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

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

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

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

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

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

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

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

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

.animate-shimmer {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.2) 20%,
    rgba(255, 255, 255, 0.5) 60%,
    rgba(255, 255, 255, 0)
  );
  background-size: 200% auto;
  animation: shimmer 2s linear infinite;
}

.animate-gradientShift {
  background-size: 200% 200%;
  animation: gradientShift 3s ease infinite;
}

.animate-bounceIn {
  animation: bounceIn 0.8s ease-out;
}

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

.animate-neonFlicker {
  animation: neonFlicker 1.5s infinite;
}

/* ==========================================
   ANIMATION DELAY UTILITIES
   ========================================== */

.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 DURATION UTILITIES
   ========================================== */

.duration-fast {
  animation-duration: 0.3s;
}

.duration-normal {
  animation-duration: 0.6s;
}

.duration-slow {
  animation-duration: 1s;
}

.duration-slower {
  animation-duration: 2s;
}

/* ==========================================
   HOVER ANIMATIONS
   ========================================== */

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

.hover-lift:hover {
  transform: translateY(-5px);
}

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

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

.hover-glow {
  transition: box-shadow 0.3s ease;
}

.hover-glow:hover {
  box-shadow: 0 0 30px rgba(0, 217, 255, 0.5);
}

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

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

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

.loading-spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid rgba(0, 217, 255, 0.2);
  border-top-color: #00d9ff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.loading-dots {
  display: inline-flex;
  gap: 8px;
}

.loading-dots span {
  width: 8px;
  height: 8px;
  background: #00d9ff;
  border-radius: 50%;
  animation: pulse 1.4s ease-in-out infinite;
}

.loading-dots span:nth-child(2) {
  animation-delay: 0.2s;
}

.loading-dots span:nth-child(3) {
  animation-delay: 0.4s;
}

/* ==========================================
   PARALLAX EFFECT
   ========================================== */

.parallax-slow {
  transition: transform 0.5s ease-out;
}

.parallax-medium {
  transition: transform 0.3s ease-out;
}

.parallax-fast {
  transition: transform 0.1s ease-out;
}

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

.scroll-fade-in {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

/* Only hide if JavaScript is enabled */
.js-enabled .scroll-fade-in {
  opacity: 0;
  transform: translateY(30px);
}

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

/* ==========================================
   TYPEWRITER EFFECT
   ========================================== */

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

@keyframes blinkCursor {
  from, to {
    border-color: transparent;
  }
  50% {
    border-color: #00d9ff;
  }
}

.typewriter {
  overflow: hidden;
  border-right: 2px solid #00d9ff;
  white-space: nowrap;
  animation:
    typewriter 3s steps(40, end),
    blinkCursor 0.75s step-end infinite;
}

/* ==========================================
   PAGE TRANSITION
   ========================================== */

.page-transition-enter {
  opacity: 0;
  transform: translateY(20px);
}

.page-transition-enter-active {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.3s ease-out, transform 0.3s ease-out;
}

.page-transition-exit {
  opacity: 1;
  transform: translateY(0);
}

.page-transition-exit-active {
  opacity: 0;
  transform: translateY(-20px);
  transition: opacity 0.3s ease-out, transform 0.3s ease-out;
}

/* ==========================================
   STARFIELD BACKGROUND
   ========================================== */

.starfield {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.star {
  position: absolute;
  background: white;
  border-radius: 50%;
  opacity: 0.8;
  animation: starfield 50s linear infinite;
}

.star.small {
  width: 1px;
  height: 1px;
}

.star.medium {
  width: 2px;
  height: 2px;
}

.star.large {
  width: 3px;
  height: 3px;
  box-shadow: 0 0 4px rgba(255, 255, 255, 0.8);
}