/* ========================================
   ANIMATIONS & TRANSITIONS
   ======================================== */

/* ========================================
   ENTRANCE 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);
  }
}

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

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

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

@keyframes rotateIn {
  from {
    opacity: 0;
    transform: rotate(-10deg) scale(0.8);
  }
  to {
    opacity: 1;
    transform: rotate(0deg) scale(1);
  }
}

/* ========================================
   FLOATING & MOVEMENT ANIMATIONS
   ======================================== */

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

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

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

@keyframes drift {
  0% {
    transform: translate(0, 0) rotate(0deg);
  }
  25% {
    transform: translate(10px, -5px) rotate(2deg);
  }
  50% {
    transform: translate(5px, -10px) rotate(-1deg);
  }
  75% {
    transform: translate(-5px, -5px) rotate(1deg);
  }
  100% {
    transform: translate(0, 0) rotate(0deg);
  }
}

@keyframes spiral {
  0% {
    transform: translate(0, 0) rotate(0deg) scale(1);
  }
  25% {
    transform: translate(20px, -10px) rotate(90deg) scale(0.9);
  }
  50% {
    transform: translate(0, -20px) rotate(180deg) scale(1.1);
  }
  75% {
    transform: translate(-20px, -10px) rotate(270deg) scale(0.9);
  }
  100% {
    transform: translate(0, 0) rotate(360deg) scale(1);
  }
}

/* ========================================
   INTERACTIVE ANIMATIONS
   ======================================== */

@keyframes bounce {
  0%, 20%, 53%, 80%, 100% {
    transform: translateY(0);
  }
  40%, 43% {
    transform: translateY(-15px);
  }
  70% {
    transform: translateY(-7px);
  }
  90% {
    transform: translateY(-3px);
  }
}

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

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.8;
  }
}

@keyframes glow {
  0%, 100% {
    filter: drop-shadow(0 0 5px rgba(99, 102, 241, 0.3));
  }
  50% {
    filter: drop-shadow(0 0 20px rgba(99, 102, 241, 0.8));
  }
}

/* ========================================
   ROTATION ANIMATIONS
   ======================================== */

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

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

@keyframes wobble {
  0%, 100% {
    transform: rotate(0deg);
  }
  15% {
    transform: rotate(-5deg);
  }
  30% {
    transform: rotate(3deg);
  }
  45% {
    transform: rotate(-3deg);
  }
  60% {
    transform: rotate(2deg);
  }
  75% {
    transform: rotate(-1deg);
  }
}

/* ========================================
   SPECIAL EFFECTS
   ======================================== */

@keyframes rainbow {
  0% {
    filter: hue-rotate(0deg);
  }
  100% {
    filter: hue-rotate(360deg);
  }
}

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

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

@keyframes blink {
  0%, 50% {
    opacity: 1;
  }
  51%, 100% {
    opacity: 0;
  }
}

/* ========================================
   TRANSITION STATES
   ======================================== */

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

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

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

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

/* ========================================
   HERO SPECIFIC ANIMATIONS
   ======================================== */

@keyframes snailEntrance {
  0% {
    opacity: 0;
    transform: scale(0.5) rotate(-20deg) translateX(-100px);
  }
  60% {
    opacity: 0.8;
    transform: scale(1.1) rotate(5deg) translateX(10px);
  }
  100% {
    opacity: 1;
    transform: scale(1) rotate(0deg) translateX(0);
  }
}

@keyframes titleReveal {
  0% {
    opacity: 0;
    transform: translateY(50px) scale(0.8);
    filter: blur(10px);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0);
  }
}

/* ========================================
   CANVAS PARTICLE ANIMATIONS
   ======================================== */

@keyframes particleFloat {
  0% {
    transform: translateY(100vh) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-100px) rotate(360deg);
    opacity: 0;
  }
}

@keyframes particleDrift {
  0% {
    transform: translate(0, 0);
  }
  25% {
    transform: translate(20px, -10px);
  }
  50% {
    transform: translate(-10px, -20px);
  }
  75% {
    transform: translate(-20px, 10px);
  }
  100% {
    transform: translate(0, 0);
  }
}

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

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

.animate-sway {
  animation: sway 4s ease-in-out infinite;
}

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

.animate-bounce {
  animation: bounce 1s ease-in-out;
}

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

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

.animate-rotate {
  animation: rotate 20s linear infinite;
}

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

.animate-wobble {
  animation: wobble 1s ease-in-out;
}

.animate-drift {
  animation: drift 8s ease-in-out infinite;
}

.animate-spiral {
  animation: spiral 10s ease-in-out infinite;
}

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

.hover-float:hover {
  animation: float 1s ease-in-out infinite;
}

.hover-pulse:hover {
  animation: pulse 0.5s ease-in-out infinite;
}

.hover-glow:hover {
  animation: glow 1s ease-in-out infinite alternate;
}

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

.hover-shake:hover {
  animation: shake 0.3s ease-in-out;
}

.hover-wobble:hover {
  animation: wobble 0.6s ease-in-out;
}

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

.loading-dots::after {
  content: '';
  animation: loading-dots 1.5s infinite;
}

@keyframes loading-dots {
  0%, 20% {
    content: '';
  }
  40% {
    content: '.';
  }
  60% {
    content: '..';
  }
  80%, 100% {
    content: '...';
  }
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: rotate 1s linear infinite;
}

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

.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.scroll-reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

.scroll-reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

.scroll-reveal-scale {
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-reveal-scale.revealed {
  opacity: 1;
  transform: scale(1);
}

/* ========================================
   REDUCED MOTION OVERRIDES
   ======================================== */

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

  .animate-float,
  .animate-sway,
  .animate-pulse,
  .animate-glow,
  .animate-rotate,
  .animate-spin,
  .animate-drift,
  .animate-spiral {
    animation: none !important;
  }

  .scroll-reveal,
  .scroll-reveal-left,
  .scroll-reveal-right,
  .scroll-reveal-scale {
    opacity: 1 !important;
    transform: none !important;
  }
}