/**
 * Webgentic - Motion & Animation System
 * Transitions, animations, and interactive effects
 */

/* ================================
   BACKGROUND ANIMATIONS
   ================================ */

/* Breathing gradient background */
@keyframes gradient-breathing {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

.bg-breathing {
  background-size: 200% 200%;
  animation: gradient-breathing 20s ease-in-out infinite;
}

/* Slow gradient pan */
@keyframes gradient-pan {
  0% {
    background-position: 0% center;
  }
  100% {
    background-position: 200% center;
  }
}

.bg-pan {
  background-size: 200% 100%;
  animation: gradient-pan 30s linear infinite;
}

/* ================================
   ENTRANCE ANIMATIONS
   ================================ */

/* Fade up animation */
@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-up {
  animation: fade-up 600ms var(--ease-out) both;
}

.animate-fade-up--delay-1 {
  animation-delay: 100ms;
}

.animate-fade-up--delay-2 {
  animation-delay: 200ms;
}

.animate-fade-up--delay-3 {
  animation-delay: 300ms;
}

.animate-fade-up--delay-4 {
  animation-delay: 400ms;
}

/* Fade in animation */
@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.animate-fade-in {
  animation: fade-in 400ms var(--ease-out) both;
}

/* Scale in animation */
@keyframes scale-in {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.animate-scale-in {
  animation: scale-in 500ms var(--ease-out) both;
}

/* Slide in from right */
@keyframes slide-in-right {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-slide-in-right {
  animation: slide-in-right 600ms var(--ease-out) both;
}

/* Slide in from left */
@keyframes slide-in-left {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-slide-in-left {
  animation: slide-in-left 600ms var(--ease-out) both;
}

/* ================================
   CONTINUOUS ANIMATIONS
   ================================ */

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

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

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

.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

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

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

/* Glow pulse */
@keyframes glow-pulse {
  0%, 100% {
    box-shadow: 0 0 20px rgba(0, 224, 255, 0.3);
  }
  50% {
    box-shadow: 0 0 40px rgba(0, 224, 255, 0.6);
  }
}

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

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

/* Lift on hover */
.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* Scale on hover */
.hover-scale {
  transition: transform var(--transition-base);
}

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

/* Glow on hover */
.hover-glow {
  transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
  box-shadow: var(--shadow-glow-cyan);
}

/* Brightness on hover */
.hover-brighten {
  transition: filter var(--transition-base);
}

.hover-brighten:hover {
  filter: brightness(1.2);
}

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

/* Parallax effect (requires JS) */
.parallax {
  transition: transform 0.1s linear;
  will-change: transform;
}

/* Reveal on scroll (requires JS) */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out);
}

.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

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

/* Spinner */
@keyframes spinner {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(0, 224, 255, 0.2);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spinner 0.8s linear infinite;
}

/* Dots loader */
@keyframes dots-bounce {
  0%, 80%, 100% {
    transform: scale(0);
    opacity: 0.5;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

.dots-loader {
  display: flex;
  gap: var(--space-2);
}

.dots-loader__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: dots-bounce 1.4s infinite ease-in-out both;
}

.dots-loader__dot:nth-child(1) {
  animation-delay: -0.32s;
}

.dots-loader__dot:nth-child(2) {
  animation-delay: -0.16s;
}

/* ================================
   MORPHING BLOB (for hero visuals)
   ================================ */

@keyframes blob-morph {
  0%, 100% {
    border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
  }
  25% {
    border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%;
  }
  50% {
    border-radius: 50% 40% 60% 50% / 40% 60% 40% 70%;
  }
  75% {
    border-radius: 40% 60% 50% 60% / 70% 30% 60% 40%;
  }
}

.blob {
  background: var(--gradient-cognitive);
  animation: blob-morph 20s ease-in-out infinite;
  will-change: border-radius;
  filter: blur(40px);
  opacity: 0.7;
}

.blob-solid {
  background: var(--gradient-cognitive);
  animation: blob-morph 20s ease-in-out infinite;
  will-change: border-radius;
}

/* ================================
   INTERACTIVE STATES
   ================================ */

/* Active state */
.active-scale {
  transition: transform var(--transition-fast);
}

.active-scale:active {
  transform: scale(0.98);
}

/* Focus state ring */
.focus-ring:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

/* ================================
   STAGGER ANIMATIONS
   ================================ */

.stagger-children > * {
  opacity: 0;
  animation: fade-up 600ms var(--ease-out) both;
}

.stagger-children > *:nth-child(1) { animation-delay: 0ms; }
.stagger-children > *:nth-child(2) { animation-delay: 100ms; }
.stagger-children > *:nth-child(3) { animation-delay: 200ms; }
.stagger-children > *:nth-child(4) { animation-delay: 300ms; }
.stagger-children > *:nth-child(5) { animation-delay: 400ms; }
.stagger-children > *:nth-child(6) { animation-delay: 500ms; }

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

.transition-all {
  transition: all var(--transition-all);
}

.transition-colors {
  transition: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
}

.transition-transform {
  transition: transform var(--transition-base);
}

.transition-opacity {
  transition: opacity var(--transition-base);
}

/* ================================
   PERFORMANCE OPTIMIZATIONS
   ================================ */

.will-change-transform {
  will-change: transform;
}

.will-change-opacity {
  will-change: opacity;
}

.gpu-accelerated {
  transform: translateZ(0);
  backface-visibility: hidden;
}

/* ================================
   REDUCED MOTION SUPPORT
   ================================ */

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

  .bg-breathing,
  .bg-pan,
  .animate-float,
  .animate-pulse,
  .animate-spin,
  .animate-glow-pulse,
  .blob {
    animation: none !important;
  }

  .parallax {
    transform: none !important;
  }
}

/* ================================
   CUSTOM EASING UTILITIES
   ================================ */

.ease-in-out {
  transition-timing-function: var(--ease-in-out);
}

.ease-out {
  transition-timing-function: var(--ease-out);
}

.ease-in {
  transition-timing-function: var(--ease-in);
}

.ease-spring {
  transition-timing-function: var(--ease-spring);
}