/**
 * 動畫效果系統
 * 提供現代化的動畫和過渡效果
 */

/* ==================== 基礎動畫 ==================== */

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

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

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

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

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

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

@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

/* ==================== 動畫類別 ==================== */

.animate-fade-in {
  animation: fadeIn 0.3s ease-out;
}

.animate-fade-in-up {
  animation: fadeInUp 0.4s ease-out;
}

.animate-fade-in-down {
  animation: fadeInDown 0.3s ease-out;
}

.animate-slide-in-right {
  animation: slideInRight 0.4s ease-out;
}

.animate-scale-in {
  animation: scaleIn 0.3s ease-out;
}

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

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

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

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

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

/* ==================== 過渡效果 ==================== */

.transition-all {
  transition: all 0.3s ease;
}

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

.transition-colors {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

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

/* ==================== 卡片效果 ==================== */

.card-hover {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.card-hover:active {
  transform: translateY(-2px);
}

/* ==================== 按鈕效果 ==================== */

.btn-ripple {
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

.btn-ripple::before {
  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;
}

.btn-ripple:active::before {
  width: 300px;
  height: 300px;
}

.btn-scale {
  transition: transform 0.2s ease;
}

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

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

/* ==================== 輸入框效果 ==================== */

.input-focus {
  transition: all 0.3s ease;
}

.input-focus:focus {
  transform: translateY(-2px);
  box-shadow: 0 4px 6px -1px rgba(232, 168, 124, 0.1), 0 2px 4px -1px rgba(232, 168, 124, 0.06);
}

/* ==================== 載入效果 ==================== */

.skeleton {
  background: linear-gradient(
    90deg,
    #f0f0f0 0%,
    #e0e0e0 50%,
    #f0f0f0 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

.loading-spinner {
  border: 3px solid rgba(232, 168, 124, 0.1);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 0.8s linear infinite;
}

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

/* ==================== 通知動畫 ==================== */

@keyframes slideInFromTop {
  from {
    opacity: 0;
    transform: translateY(-100%);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideOutToTop {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-100%);
  }
}

.notification-enter {
  animation: slideInFromTop 0.3s ease-out;
}

.notification-exit {
  animation: slideOutToTop 0.3s ease-in;
}

/* ==================== 模態框動畫 ==================== */

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

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

.modal-backdrop-enter {
  animation: modalBackdropFadeIn 0.2s ease-out;
}

.modal-content-enter {
  animation: modalContentScaleIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==================== 拖曳效果 ==================== */

.dragging {
  opacity: 0.5;
  transform: scale(1.05);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.drag-over {
  border: 2px dashed var(--color-primary);
  background-color: rgba(232, 168, 124, 0.05);
}

/* ==================== Glassmorphism ==================== */

.glass {
  background: rgba(255, 255, 255, 0.7);
  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, 0.3);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ==================== 漸層背景 ==================== */

.gradient-bg {
  background: linear-gradient(135deg, #fef5f0 0%, #fff 100%);
}

.gradient-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
}

/* ==================== 響應式動畫 ==================== */

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