/* 现代化动画效果 */
/* 基础过渡效果 */
* {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

/* 按钮动画效果 */
.btn {
  position: relative;
  overflow: hidden;
  transform: translateZ(0);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  will-change: transform, box-shadow;
}

.btn::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
  will-change: width, height;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn:active {
  transform: scale(0.95);
}

/* 特定按钮动画 */
.btn-add-to-cart,
.btn-read-more,
.remove-btn,
.place-order-btn {
  position: relative;
  overflow: hidden;
  transform: translateZ(0);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  will-change: transform, box-shadow;
}

.btn-add-to-cart::before,
.btn-read-more::before,
.remove-btn::before,
.place-order-btn::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
  will-change: width, height;
}

.btn-add-to-cart:hover::before,
.btn-read-more:hover::before,
.remove-btn:hover::before,
.place-order-btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-add-to-cart:active,
.btn-read-more:active,
.remove-btn:active,
.place-order-btn:active {
  transform: scale(0.95);
}

/* 卡片动画效果 */
.card {
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  transform: translateZ(0);
  will-change: transform, box-shadow;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* 动画主题背景动画 */
[data-theme="animation"] {
  animation: fadeIn 0.5s ease-in-out;
}

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

/* 导航栏动画 */
.navbar {
  transition: all 0.3s ease;
  will-change: transform, box-shadow;
}

.navbar.scrolled {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transform: translateY(0);
}

/* 下拉菜单动画 */
.dropdown-menu {
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  display: block;
  visibility: hidden;
  will-change: opacity, transform;
}

.dropdown-menu.show {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
}

/* 模态框动画 */
.modal.fade .modal-dialog {
  transform: translate(0, -50px);
  transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  will-change: transform;
}

.modal.show .modal-dialog {
  transform: translate(0, 0);
}

/* 加载动画 */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(0, 0, 0, 0.1);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  animation: spin 1s ease-in-out infinite;
  will-change: transform;
}

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

/* 渐变动画 */
.gradient-animation {
  background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
  background-size: 400% 400%;
  animation: gradient 15s ease infinite;
  will-change: background-position;
}

@keyframes gradient {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* 悬停效果 */
.hover-lift {
  transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.3s ease;
  will-change: transform, box-shadow;
}

.hover-lift:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* 淡入淡出效果 */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
  will-change: opacity, transform;
}

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

/* 缩放效果 */
.scale-hover {
  transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  will-change: transform;
}

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

/* 旋转效果 */
.rotate-hover {
  transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  will-change: transform;
}

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

/* 脉冲效果 */
.pulse {
  animation: pulse 2s infinite;
  will-change: transform;
}

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

/* 闪烁效果 */
.blink {
  animation: blink 1s infinite;
  will-change: opacity;
}

@keyframes blink {
  0% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
  100% {
    opacity: 1;
  }
}

/* 滑动效果 */
.slide-in-left {
  transform: translateX(-100%);
  animation: slideInLeft 0.5s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
  will-change: transform;
}

@keyframes slideInLeft {
  to {
    transform: translateX(0);
  }
}

.slide-in-right {
  transform: translateX(100%);
  animation: slideInRight 0.5s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
  will-change: transform;
}

@keyframes slideInRight {
  to {
    transform: translateX(0);
  }
}

/* 弹跳效果 */
.bounce {
  animation: bounce 1s infinite;
  will-change: transform;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-30px);
  }
  60% {
    transform: translateY(-15px);
  }
}

/* 动画主题特殊效果 */
[data-theme="animation"] .card {
  backdrop-filter: blur(10px);
  animation: cardEntrance 0.5s ease-out;
}

@keyframes cardEntrance {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

[data-theme="animation"] .navbar {
  backdrop-filter: blur(10px);
}

/* 响应式动画优化 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* 响应式按钮动画 */
@media (max-width: 768px) {
  .btn::before,
  .btn-add-to-cart::before,
  .btn-read-more::before,
  .remove-btn::before,
  .place-order-btn::before {
    transition: width 0.4s, height 0.4s;
  }
}

@media (max-width: 576px) {
  .btn::before,
  .btn-add-to-cart::before,
  .btn-read-more::before,
  .remove-btn::before,
  .place-order-btn::before {
    transition: none;
  }
  
  .btn:hover::before,
  .btn-add-to-cart:hover::before,
  .btn-read-more:hover::before,
  .remove-btn:hover::before,
  .place-order-btn:hover::before {
    width: 0;
    height: 0;
  }
}