/* Dynamic Loading CSS Animations */

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

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

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

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

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

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

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

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

/* Slide In From Bottom */
@keyframes slideInBottom {
  from {
    opacity: 0;
    transform: translateY(100px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Animation Classes */
.animate-on-scroll {
  opacity: 0;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animated {
  opacity: 1;
}

/* 滚动露出：用 transition 实现，进入视口时加 .revealed */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1), transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

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

.reveal-on-scroll.reveal-left {
  transform: translateY(36px) translateX(-24px);
}

.reveal-on-scroll.reveal-left.revealed {
  transform: translateY(0) translateX(0);
}

.reveal-on-scroll.reveal-right {
  transform: translateY(36px) translateX(24px);
}

.reveal-on-scroll.reveal-right.revealed {
  transform: translateY(0) translateX(0);
}

.reveal-on-scroll.reveal-scale {
  transform: translateY(24px) scale(0.97);
}

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

.fade-in {
  animation: fadeIn 0.8s ease forwards;
}

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

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

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

.scale-in {
  animation: scaleIn 0.6s ease forwards;
}

.slide-down {
  animation: slideDown 0.6s ease forwards;
}

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

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

.bounce {
  animation: bounce 2s ease infinite;
}

/* Stagger Animation Delays */
.animate-delay-1 {
  animation-delay: 0.1s;
}

.animate-delay-2 {
  animation-delay: 0.2s;
}

.animate-delay-3 {
  animation-delay: 0.3s;
}

.animate-delay-4 {
  animation-delay: 0.4s;
}

.animate-delay-5 {
  animation-delay: 0.5s;
}

.animate-delay-6 {
  animation-delay: 0.6s;
}

/* Loading Skeleton */
.skeleton {
  background: linear-gradient(
    90deg,
    #f0f0f0 25%,
    #e0e0e0 50%,
    #f0f0f0 75%
  );
  background-size: 1000px 100%;
  animation: shimmer 2s infinite;
}

/* Hover Effects */
.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.hover-lift-sm {
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.hover-lift-sm:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

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

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

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

.hover-glow:hover {
  box-shadow: 0 0 30px rgba(59, 130, 246, 0.4);
}

/* 链接下划线动效 */
.link-underline {
  position: relative;
}

.link-underline::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: currentColor;
  transition: width 0.3s ease;
}

.link-underline:hover::after {
  width: 100%;
}

/* Page Transition */
.page-transition {
  animation: fadeIn 0.5s ease;
}

/* Scroll Progress Bar */
.scroll-progress {
  position: fixed;
  top: 72px;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, #3b82f6, #60a5fa);
  z-index: 9999;
  transition: width 0.1s ease;
}

/* Button Ripple Effect */
.ripple {
  position: relative;
  overflow: hidden;
}

.ripple::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.ripple:active::after {
  width: 300px;
  height: 300px;
}

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

.gradient-animate {
  background-size: 200% 200%;
  animation: gradientShift 8s ease infinite;
}

/* Text Reveal Animation */
@keyframes textReveal {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.text-reveal {
  opacity: 0;
  animation: textReveal 0.8s ease forwards;
}

/* Card Flip Animation */
@keyframes cardFlip {
  from {
    transform: perspective(1000px) rotateY(-10deg);
    opacity: 0;
  }
  to {
    transform: perspective(1000px) rotateY(0deg);
    opacity: 1;
  }
}

.card-flip {
  animation: cardFlip 0.8s ease forwards;
}

/* Smooth Scroll Behavior */
html {
  scroll-behavior: smooth;
}

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