/* CSS 設計系統 - 動畫效果 */

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

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

.fade-in {
  animation: fadeIn var(--transition-normal);
}

.fade-out {
  animation: fadeOut var(--transition-normal);
}

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

@keyframes slideInDown {
  from {
    transform: translateY(-20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes slideInLeft {
  from {
    transform: translateX(-20px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideInRight {
  from {
    transform: translateX(20px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.slide-in-up {
  animation: slideInUp var(--transition-normal);
}

.slide-in-down {
  animation: slideInDown var(--transition-normal);
}

.slide-in-left {
  animation: slideInLeft var(--transition-normal);
}

.slide-in-right {
  animation: slideInRight var(--transition-normal);
}

/* 縮放效果 */
@keyframes scaleIn {
  from {
    transform: scale(0.9);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

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

.scale-in {
  animation: scaleIn var(--transition-normal);
}

.scale-out {
  animation: scaleOut var(--transition-normal);
}

/* 彈跳效果 */
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

.bounce {
  animation: bounce 1s ease;
}

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

.shake {
  animation: shake 0.5s ease;
}

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

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

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

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

/* 波紋效果 */
@keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 1;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}

/* 表情符號漂浮動畫 */
@keyframes floatUp {
  0% {
    transform: translateY(0) translateX(0) scale(1);
    opacity: 1;
  }
  50% {
    transform: translateY(-100px) translateX(20px) scale(1.2);
    opacity: 0.8;
  }
  100% {
    transform: translateY(-200px) translateX(-20px) scale(0.8);
    opacity: 0;
  }
}

.float-up {
  animation: floatUp 3s ease-out forwards;
}

/* 表情符號出現動畫 */
@keyframes emojiPop {
  0% {
    transform: scale(0);
    opacity: 0;
  }
  50% {
    transform: scale(1.2);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.emoji-pop {
  animation: emojiPop 0.3s ease-out;
}

/* 閃爍效果 */
@keyframes blink {
  0%, 50%, 100% {
    opacity: 1;
  }
  25%, 75% {
    opacity: 0.5;
  }
}

.blink {
  animation: blink 1.5s ease-in-out infinite;
}

/* 漸變背景動畫 */
@keyframes gradientMove {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.gradient-animate {
  background-size: 200% 200%;
  animation: gradientMove 3s ease infinite;
}

/* 打字效果 */
@keyframes typing {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

@keyframes blink-caret {
  from, to {
    border-color: transparent;
  }
  50% {
    border-color: var(--text-primary);
  }
}

.typing {
  overflow: hidden;
  border-right: 2px solid var(--text-primary);
  white-space: nowrap;
  animation: typing 3s steps(40, end), blink-caret 0.75s step-end infinite;
}

/* 進度條加載動畫 */
@keyframes progress {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(400%);
  }
}

.loading-bar {
  position: relative;
  overflow: hidden;
}

.loading-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 25%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
  animation: progress 1.5s ease-in-out infinite;
}

/* 心跳效果 */
@keyframes heartbeat {
  0%, 100% {
    transform: scale(1);
  }
  10%, 30% {
    transform: scale(1.1);
  }
  20%, 40% {
    transform: scale(1);
  }
}

.heartbeat {
  animation: heartbeat 1.5s ease-in-out infinite;
}

/* 翻轉效果 */
@keyframes flip {
  0% {
    transform: perspective(400px) rotateY(0);
  }
  100% {
    transform: perspective(400px) rotateY(360deg);
  }
}

.flip {
  animation: flip 1s ease;
}

/* 發光效果 */
@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 5px var(--color-primary), 0 0 10px var(--color-primary);
  }
  50% {
    box-shadow: 0 0 20px var(--color-primary), 0 0 30px var(--color-primary);
  }
}

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

/* 延遲動畫工具類 */
.delay-100 {
  animation-delay: 0.1s;
}

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

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

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

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

/* 動畫速度工具類 */
.duration-fast {
  animation-duration: var(--transition-fast);
}

.duration-normal {
  animation-duration: var(--transition-normal);
}

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

/* Hover 效果 */
.hover-lift {
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.hover-grow {
  transition: transform var(--transition-fast);
}

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

.hover-rotate {
  transition: transform var(--transition-normal);
}

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

/* 互動效果 */
.interactive {
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

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

/* 無障礙：尊重用戶的減少動畫偏好 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}