/* ============================================
   ANIMATIONS & TRANSITIONS
   Keyframes, Scroll Effects, Interactive Animations
   ============================================ */

/* ===== PAGE LOAD ANIMATION ===== */
body {
  animation: fadeIn 0.5s ease-in-out;
}

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

/* Marquee Scroll Animation */
@keyframes marqueeScroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* Fade In Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@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);
  }
}

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

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

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

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

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

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.8;
  }
}

/* Bounce Animation */
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-15px);
  }
  60% {
    transform: translateY(-8px);
  }
}

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

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

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

/* Glow Effect */
@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 5px var(--color-accent-cyan), 0 0 10px var(--color-accent-cyan);
  }
  50% {
    box-shadow: 0 0 10px var(--color-accent-cyan), 0 0 20px var(--color-accent-cyan), 0 0 30px var(--color-accent-cyan);
  }
}

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

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

/* Glass Shine Effect */
@keyframes glassShine {
  0% {
    transform: translateX(-100%) rotate(45deg);
  }
  100% {
    transform: translateX(100%) rotate(45deg);
  }
}

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

/* Fade Animations */
.animate-fade-in {
  animation: fadeIn 0.8s ease-out forwards;
}

.animate-fade-in-up {
  animation: fadeInUp 0.8s ease-out forwards;
}

.animate-fade-in-down {
  animation: fadeInDown 0.8s ease-out forwards;
}

.animate-fade-in-left {
  animation: fadeInLeft 0.8s ease-out forwards;
}

.animate-fade-in-right {
  animation: fadeInRight 0.8s ease-out forwards;
}

/* Scale Animations */
.animate-scale-in {
  animation: scaleIn 0.6s ease-out forwards;
}

.animate-zoom-in {
  animation: zoomIn 0.6s ease-out forwards;
}

/* Other Animations */
.animate-bounce {
  animation: bounce 1s ease infinite;
}

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

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

.animate-rotate {
  animation: rotate 2s linear infinite;
}

/* ===== SCROLL-TRIGGERED ANIMATIONS ===== */

/* Hidden state before animation */
.scroll-animate {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s ease-out;
}

/* Visible state when scrolled into view */
.scroll-animate.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Delay classes for staggered animations */
.delay-100 {
  transition-delay: 0.1s;
}

.delay-200 {
  transition-delay: 0.2s;
}

.delay-300 {
  transition-delay: 0.3s;
}

.delay-400 {
  transition-delay: 0.4s;
}

.delay-500 {
  transition-delay: 0.5s;
}

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

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

.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

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

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

/* Tilt Effect */
.hover-tilt {
  transition: transform var(--transition-base);
}

.hover-tilt:hover {
  transform: perspective(1000px) rotateX(5deg) rotateY(5deg);
}

/* Shine Effect */
.hover-shine {
  position: relative;
  overflow: hidden;
}

.hover-shine::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left var(--transition-slow);
}

.hover-shine:hover::before {
  left: 100%;
}

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

.hover-glow:hover {
  box-shadow: 0 0 20px var(--color-accent-cyan-light);
}

/* Border Grow Effect */
.hover-border-grow {
  position: relative;
}

.hover-border-grow::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 100%;
  height: 3px;
  background: var(--gradient-orange);
  transition: transform var(--transition-base);
}

.hover-border-grow:hover::after {
  transform: translateX(-50%) scaleX(1);
}

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

/* Spinner */
.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-gray-light);
  border-top-color: var(--color-accent-orange);
  border-radius: 50%;
  animation: rotate 1s linear infinite;
}

.spinner-sm {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

.spinner-lg {
  width: 60px;
  height: 60px;
  border-width: 6px;
}

/* Dots Loading */
.loading-dots {
  display: flex;
  gap: var(--space-sm);
}

.loading-dots span {
  width: 12px;
  height: 12px;
  background: var(--color-accent-orange);
  border-radius: 50%;
  animation: bounce 1.4s infinite ease-in-out both;
}

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

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

/* ===== PARALLAX EFFECT ===== */
.parallax {
  position: relative;
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

/* ===== REVEAL EFFECTS ===== */

/* Slide reveal from bottom */
.reveal-bottom {
  position: relative;
  overflow: hidden;
}

.reveal-bottom::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-white);
  transform: translateY(0);
  transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1);
}

.reveal-bottom.revealed::before {
  transform: translateY(100%);
}

/* Text reveal */
.text-reveal {
  position: relative;
  display: inline-block;
  overflow: hidden;
}

.text-reveal span {
  display: inline-block;
  transform: translateY(100%);
  transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1);
}

.text-reveal.revealed span {
  transform: translateY(0);
}

/* ===== GRADIENT BACKGROUND ANIMATIONS ===== */
.gradient-animate {
  background: linear-gradient(270deg, var(--color-accent-cyan), var(--color-accent-orange), var(--color-primary-blue));
  background-size: 400% 400%;
  animation: gradientShift 15s ease infinite;
}

/* ===== IMAGE EFFECTS ===== */

/* Zoom on hover */
.image-zoom {
  overflow: hidden;
}

.image-zoom img {
  transition: transform var(--transition-slow);
}

.image-zoom:hover img {
  transform: scale(1.15);
}

/* Grayscale to color */
.image-grayscale img {
  filter: grayscale(100%);
  transition: filter var(--transition-base);
}

.image-grayscale:hover img {
  filter: grayscale(0%);
}

/* Overlay fade */
.image-overlay-fade {
  position: relative;
}

.image-overlay-fade::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-overlay);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.image-overlay-fade:hover::after {
  opacity: 1;
}

/* ===== COUNTER ANIMATION ===== */
.counter {
  font-variant-numeric: tabular-nums;
}

/* ===== STAGGER ANIMATIONS ===== */
.stagger-item {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.6s ease-out forwards;
}

.stagger-item:nth-child(1) { animation-delay: 0.1s; }
.stagger-item:nth-child(2) { animation-delay: 0.2s; }
.stagger-item:nth-child(3) { animation-delay: 0.3s; }
.stagger-item:nth-child(4) { animation-delay: 0.4s; }
.stagger-item:nth-child(5) { animation-delay: 0.5s; }
.stagger-item:nth-child(6) { animation-delay: 0.6s; }

/* ===== PAGE TRANSITIONS ===== */
.page-enter {
  animation: fadeInUp 0.6s ease-out;
}

/* ===== SMOOTH SCROLL ===== */
html.smooth-scroll {
  scroll-behavior: smooth;
}

/* ===== REDUCED MOTION ===== */
@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;
  }
}