/* 動畫定義 */

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

/* 向上淡入 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 向下淡入 */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

/* 發光脈衝 */
@keyframes glowPulse {
  0%, 100% {
    box-shadow: 0 0 5px currentColor, 0 0 10px currentColor;
  }
  50% {
    box-shadow: 0 0 10px currentColor, 0 0 20px currentColor, 0 0 30px currentColor;
  }
}

/* 位元閃爍 */
@keyframes bitFlicker {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

/* 位元流動 */
@keyframes bitFlow {
  0% {
    background-position: 0% 50%;
  }
  100% {
    background-position: 100% 50%;
  }
}

/* 進度條動畫 */
@keyframes progressFill {
  from {
    width: 0%;
  }
  to {
    width: var(--progress-width, 100%);
  }
}

/* Buffer 載入動畫 */
@keyframes bufferLoading {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

/* 滑動進入 - 從左 */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* 滑動進入 - 從右 */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* 彈跳效果 */
@keyframes bounce {
  0%, 20%, 53%, 100% {
    animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
    transform: translateY(0);
  }
  40%, 43% {
    animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06);
    transform: translateY(-10px);
  }
  70% {
    animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06);
    transform: translateY(-5px);
  }
  80% {
    transform: translateY(0);
  }
  90% {
    transform: translateY(-2px);
  }
}

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

/* 數字滾動 */
@keyframes numberScroll {
  0% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(-100%);
  }
}

/* 漸層邊框動畫 */
@keyframes borderGradient {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* 粒子浮動 */
@keyframes particleFloat {
  0%, 100% {
    transform: translateY(0) translateX(0);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-100vh) translateX(20px);
    opacity: 0;
  }
}

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

@keyframes blinkCursor {
  0%, 100% {
    border-color: transparent;
  }
  50% {
    border-color: var(--color-accent-cyan);
  }
}

/* 成功效果 */
@keyframes successPop {
  0% {
    transform: scale(0);
    opacity: 0;
  }
  50% {
    transform: scale(1.2);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

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

/* 動畫類別 */
.animate-fade-in {
  animation: fadeIn var(--transition-normal) forwards;
}

.animate-fade-in-up {
  animation: fadeInUp var(--transition-normal) forwards;
}

.animate-fade-in-down {
  animation: fadeInDown var(--transition-normal) forwards;
}

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

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

.animate-glow-pulse {
  animation: glowPulse 2s infinite;
}

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

.animate-bounce {
  animation: bounce 1s;
}

.animate-shake {
  animation: shake 0.5s;
}

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

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

/* 延遲類別 */
.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.delay-500 { animation-delay: 500ms; }

/* 滾動觸發動畫 */
.scroll-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.scroll-animate.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* 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;
  }

  .scroll-animate {
    opacity: 1;
    transform: none;
  }
}