/**
 * StoryTree Animation Styles
 * 动画样式文件 - 包含所有动画效果定义
 */

/* ========================================
   1. 关键帧动画定义
   ======================================== */

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

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

/* 从下方滑入 */
@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 从上方滑入 */
@keyframes slideInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 从左侧滑入 */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* 从右侧滑入 */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* 缩放进入 */
@keyframes zoomIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* 缩放退出 */
@keyframes zoomOut {
  from {
    opacity: 1;
    transform: scale(1);
  }
  to {
    opacity: 0;
    transform: scale(0.95);
  }
}

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

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

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

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

/* 闪烁 */
@keyframes flash {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

/* 心跳 */
@keyframes heartbeat {
  0%, 100% {
    transform: scale(1);
  }
  14% {
    transform: scale(1.3);
  }
  28% {
    transform: scale(1);
  }
  42% {
    transform: scale(1.3);
  }
  70% {
    transform: scale(1);
  }
}

/* 骨架屏闪烁 */
@keyframes skeleton-shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

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

/* 摇摆 */
@keyframes swing {
  20% {
    transform: rotate(15deg);
  }
  40% {
    transform: rotate(-10deg);
  }
  60% {
    transform: rotate(5deg);
  }
  80% {
    transform: rotate(-5deg);
  }
  100% {
    transform: rotate(0deg);
  }
}

/* 果冻效果 */
@keyframes jello {
  0%, 100% {
    transform: scale3d(1, 1, 1);
  }
  30% {
    transform: scale3d(1.25, 0.75, 1);
  }
  40% {
    transform: scale3d(0.75, 1.25, 1);
  }
  50% {
    transform: scale3d(1.15, 0.85, 1);
  }
  65% {
    transform: scale3d(0.95, 1.05, 1);
  }
  75% {
    transform: scale3d(1.05, 0.95, 1);
  }
}

/* 橡皮筋效果 */
@keyframes rubberBand {
  0%, 100% {
    transform: scale3d(1, 1, 1);
  }
  30% {
    transform: scale3d(1.25, 0.75, 1);
  }
  40% {
    transform: scale3d(0.75, 1.25, 1);
  }
  50% {
    transform: scale3d(1.15, 0.85, 1);
  }
  65% {
    transform: scale3d(0.95, 1.05, 1);
  }
  75% {
    transform: scale3d(1.05, 0.95, 1);
  }
}

/* 进度条 */
@keyframes progress {
  0% {
    width: 0%;
  }
  100% {
    width: 100%;
  }
}

/* 渐变流动 */
@keyframes gradient-flow {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* ========================================
   2. 动画工具类
   ======================================== */

/* 基础动画类 */
.animate-fade-in {
  animation: fadeIn var(--st-duration-normal) var(--st-ease-out);
}

.animate-fade-out {
  animation: fadeOut var(--st-duration-normal) var(--st-ease-in);
}

.animate-slide-up {
  animation: slideInUp var(--st-duration-slow) var(--st-ease-out);
}

.animate-slide-down {
  animation: slideInDown var(--st-duration-slow) var(--st-ease-out);
}

.animate-slide-left {
  animation: slideInLeft var(--st-duration-slow) var(--st-ease-out);
}

.animate-slide-right {
  animation: slideInRight var(--st-duration-slow) var(--st-ease-out);
}

.animate-zoom-in {
  animation: zoomIn var(--st-duration-slow) var(--st-ease-out);
}

.animate-zoom-out {
  animation: zoomOut var(--st-duration-slow) var(--st-ease-in);
}

.animate-bounce {
  animation: bounce 1s var(--st-ease-bounce);
}

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

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

.animate-shake {
  animation: shake 0.5s var(--st-ease-default);
}

.animate-flash {
  animation: flash 0.5s var(--st-ease-default);
}

.animate-heartbeat {
  animation: heartbeat 1.3s var(--st-ease-default);
}

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

.animate-swing {
  animation: swing 1s var(--st-ease-default);
}

.animate-jello {
  animation: jello 0.9s both;
}

.animate-rubber-band {
  animation: rubberBand 1s both;
}

/* 动画延迟 */
.delay-100 { animation-delay: 100ms; }
.delay-150 { animation-delay: 150ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-500 { animation-delay: 500ms; }
.delay-700 { animation-delay: 700ms; }
.delay-1000 { animation-delay: 1000ms; }

/* 动画持续时间 */
.duration-fast { animation-duration: var(--st-duration-fast); }
.duration-normal { animation-duration: var(--st-duration-normal); }
.duration-slow { animation-duration: var(--st-duration-slow); }
.duration-slower { animation-duration: var(--st-duration-slower); }

/* 动画填充模式 */
.fill-forwards { animation-fill-mode: forwards; }
.fill-backwards { animation-fill-mode: backwards; }
.fill-both { animation-fill-mode: both; }

/* ========================================
   3. 悬停效果
   ======================================== */

/* 上浮效果 */
.hover-lift {
  transition: transform var(--st-duration-normal) var(--st-ease-bounce);
}

.hover-lift:hover {
  transform: translateY(-4px);
}

/* 缩放效果 */
.hover-scale {
  transition: transform var(--st-duration-normal) var(--st-ease-bounce);
}

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

.hover-scale-sm:hover {
  transform: scale(1.02);
}

.hover-scale-lg:hover {
  transform: scale(1.1);
}

/* 阴影效果 */
.hover-shadow {
  transition: box-shadow var(--st-duration-normal) var(--st-ease-default);
}

.hover-shadow:hover {
  box-shadow: var(--st-shadow-xl);
}

.hover-shadow-lg:hover {
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

/* 颜色过渡 */
.hover-color {
  transition: color var(--st-duration-fast) var(--st-ease-default);
}

.hover-bg {
  transition: background-color var(--st-duration-fast) var(--st-ease-default);
}

.hover-opacity {
  transition: opacity var(--st-duration-fast) var(--st-ease-default);
}

.hover-opacity:hover {
  opacity: 0.8;
}

/* 组合效果 */
.hover-card {
  transition: all var(--st-duration-slow) var(--st-ease-bounce);
}

.hover-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--st-shadow-xl);
}

/* 下划线效果 */
.hover-underline {
  position: relative;
}

.hover-underline::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: currentColor;
  transition: width var(--st-duration-normal) var(--st-ease-default);
}

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

/* 发光效果 */
.hover-glow {
  transition: box-shadow var(--st-duration-normal) var(--st-ease-default);
}

.hover-glow:hover {
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.4);
}

/* 旋转效果 */
.hover-rotate {
  transition: transform var(--st-duration-normal) var(--st-ease-default);
}

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

/* ========================================
   4. 过渡效果
   ======================================== */

/* 基础过渡 */
.transition {
  transition-property: background-color, border-color, color, fill, stroke, opacity, box-shadow, transform;
  transition-duration: var(--st-duration-normal);
  transition-timing-function: var(--st-ease-default);
}

.transition-fast {
  transition-duration: var(--st-duration-fast);
}

.transition-slow {
  transition-duration: var(--st-duration-slow);
}

/* 特定属性过渡 */
.transition-colors {
  transition-property: background-color, border-color, color, fill, stroke;
  transition-duration: var(--st-duration-normal);
  transition-timing-function: var(--st-ease-default);
}

.transition-transform {
  transition-property: transform;
  transition-duration: var(--st-duration-normal);
  transition-timing-function: var(--st-ease-default);
}

.transition-opacity {
  transition-property: opacity;
  transition-duration: var(--st-duration-normal);
  transition-timing-function: var(--st-ease-default);
}

.transition-shadow {
  transition-property: box-shadow;
  transition-duration: var(--st-duration-normal);
  transition-timing-function: var(--st-ease-default);
}

/* ========================================
   5. 页面过渡
   ======================================== */

/* 页面进入 */
.page-enter {
  opacity: 0;
  transform: translateY(20px);
}

.page-enter-active {
  opacity: 1;
  transform: translateY(0);
  transition: all var(--st-duration-slow) var(--st-ease-out);
}

/* 页面退出 */
.page-exit {
  opacity: 1;
  transform: translateY(0);
}

.page-exit-active {
  opacity: 0;
  transform: translateY(-20px);
  transition: all var(--st-duration-normal) var(--st-ease-in);
}

/* ========================================
   6. 加载动画
   ======================================== */

/* 加载器 */
.loader {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 3px solid var(--st-gray-200);
  border-top-color: var(--st-primary-500);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loader-sm {
  width: 24px;
  height: 24px;
  border-width: 2px;
}

.loader-lg {
  width: 64px;
  height: 64px;
  border-width: 4px;
}

/* 点状加载器 */
.loader-dots {
  display: inline-flex;
  gap: 4px;
}

.loader-dots span {
  width: 8px;
  height: 8px;
  background: var(--st-primary-500);
  border-radius: 50%;
  animation: loader-dots 1.4s ease-in-out infinite both;
}

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

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

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

/* 脉冲加载器 */
.loader-pulse {
  display: inline-block;
  width: 40px;
  height: 40px;
  background: var(--st-primary-500);
  border-radius: 50%;
  animation: loader-pulse 1s ease-in-out infinite;
}

@keyframes loader-pulse {
  0% {
    transform: scale(0);
    opacity: 1;
  }
  100% {
    transform: scale(1);
    opacity: 0;
  }
}

/* ========================================
   7. 骨架屏动画
   ======================================== */

.skeleton {
  background: linear-gradient(
    90deg,
    var(--st-gray-100) 25%,
    var(--st-gray-200) 50%,
    var(--st-gray-100) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.5s infinite;
}

.skeleton-circle {
  border-radius: 50%;
}

.skeleton-text {
  height: 1em;
  border-radius: var(--st-radius-sm);
}

.skeleton-title {
  height: 1.5em;
  width: 60%;
  border-radius: var(--st-radius-sm);
}

/* ========================================
   8. 特殊效果
   ======================================== */

/* 渐变文字 */
.gradient-text {
  background: var(--st-gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text-gold {
  background: var(--st-gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 玻璃拟态效果 */
.glass {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.glass-dark {
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 霓虹发光效果 */
.neon {
  text-shadow: 
    0 0 5px var(--st-primary-500),
    0 0 10px var(--st-primary-500),
    0 0 20px var(--st-primary-500);
}

.neon-box {
  box-shadow: 
    0 0 5px var(--st-primary-500),
    0 0 10px var(--st-primary-500),
    inset 0 0 5px var(--st-primary-500);
}

/* 3D卡片效果 */
.card-3d {
  transform-style: preserve-3d;
  perspective: 1000px;
}

.card-3d:hover {
  transform: rotateY(5deg) rotateX(5deg);
}

/* 模糊效果 */
.blur-sm {
  filter: blur(4px);
}

.blur {
  filter: blur(8px);
}

.blur-lg {
  filter: blur(16px);
}

/* 灰度效果 */
.grayscale {
  filter: grayscale(100%);
  transition: filter var(--st-duration-normal);
}

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

/* 遮罩效果 */
.mask-gradient {
  mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
}

/* ========================================
   9. Toast 动画
   ======================================== */

.toast {
  transform: translateX(-50%) translateY(100px);
  opacity: 0;
  transition: all var(--st-duration-slow) var(--st-ease-bounce);
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast.hide {
  transform: translateX(-50%) translateY(-20px);
  opacity: 0;
}

/* ========================================
   10. Modal 动画
   ======================================== */

.modal-overlay {
  opacity: 0;
  transition: opacity var(--st-duration-normal) var(--st-ease-default);
}

.modal-overlay.show {
  opacity: 1;
}

.modal {
  transform: scale(0.95) translateY(10px);
  opacity: 0;
  transition: all var(--st-duration-slow) var(--st-ease-bounce);
}

.modal-overlay.show .modal {
  transform: scale(1) translateY(0);
  opacity: 1;
}

/* ========================================
   11. 滚动触发动画
   ======================================== */

/* 滚动显示 */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--st-duration-slower) var(--st-ease-out);
}

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

/* 交错动画 */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }

/* ========================================
   12. 响应式动画
   ======================================== */

@media (prefers-reduced-motion: reduce) {
  .animate-fade-in,
  .animate-slide-up,
  .animate-slide-down,
  .animate-zoom-in,
  .animate-bounce,
  .animate-pulse,
  .animate-spin,
  .animate-shake,
  .animate-float,
  .animate-swing,
  .animate-jello,
  .animate-rubber-band,
  .loader,
  .loader-dots span,
  .loader-pulse,
  .skeleton {
    animation: none !important;
  }
  
  .hover-lift:hover,
  .hover-scale:hover,
  .hover-card:hover,
  .transition,
  .transition-colors,
  .transition-transform,
  .transition-opacity,
  .transition-shadow {
    transition: none !important;
  }
  
  .scroll-reveal {
    opacity: 1;
    transform: none;
  }
}

/* 触摸设备优化 */
@media (hover: none) {
  .hover-lift:hover,
  .hover-scale:hover,
  .hover-card:hover {
    transform: none;
  }
  
  .hover-shadow:hover,
  .hover-shadow-lg:hover {
    box-shadow: var(--st-shadow-md);
  }
}