/**
 * 擴展動畫庫樣式
 * Phase 5.1
 */

/* ============================================
   容器樣式
   ============================================ */
.animations-extended-showcase {
  padding: var(--spacing-6);
}

.animations-extended-showcase .showcase-header {
  text-align: center;
  margin-bottom: var(--spacing-8);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  padding: var(--spacing-6);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-lg);
}

.animations-extended-showcase .showcase-header h2 {
  font-size: var(--font-size-2xl);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-2);
}

.section-desc {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-4);
  font-size: var(--font-size-sm);
}

/* ============================================
   Demo Grid - 響應式設計
   ============================================ */
.demo-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr); /* 手機：1 欄 */
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-6);
}

/* 平板：2 欄 */
@media (min-width: 640px) {
  .demo-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-5);
  }
}

/* 小桌面：3 欄 */
@media (min-width: 1024px) {
  .demo-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-6);
  }
}

/* 大桌面：4 欄 */
@media (min-width: 1280px) {
  .demo-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-6);
  }
}

.demo-card {
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-lg);
  padding: var(--spacing-4);
  text-align: center;
}

.demo-preview {
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-3);
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.demo-label {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: var(--spacing-2);
}

/* ============================================
   Motion One 演示
   ============================================ */
.motion-box {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--color-cyan), var(--color-purple));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
}

.motion-box-sm {
  width: 40px;
  height: 40px;
  background: var(--color-cyan);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-bg-primary);
  font-weight: var(--font-weight-bold);
  transform: translateY(20px);
}

/* ============================================
   Lottie 演示
   ============================================ */
.lottie-preview {
  flex-direction: column;
}

.lottie-container {
  width: 80px;
  height: 80px;
}

.lottie-controls {
  display: flex;
  gap: var(--spacing-2);
  justify-content: center;
  margin-bottom: var(--spacing-2);
}

.lottie-controls .btn {
  padding: var(--spacing-1) var(--spacing-2);
  font-size: var(--font-size-sm);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.lottie-controls .btn:hover {
  border-color: var(--color-cyan);
}

.lottie-placeholder {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-tertiary);
  border-radius: 50%;
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.speed-control {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-4);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-md);
}

.speed-control label {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.speed-control input[type="range"] {
  flex: 1;
  max-width: 200px;
}

.speed-control span {
  color: var(--color-cyan);
  font-weight: var(--font-weight-semibold);
  min-width: 40px;
}

/* ============================================
   Mo.js 演示
   ============================================ */
.mojs-demo-area {
  position: relative;
  height: 200px;
  background: linear-gradient(180deg, var(--color-bg-tertiary), var(--color-bg-card));
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-4);
  overflow: hidden;
  cursor: crosshair;
}

.mojs-hint {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
  pointer-events: none;
}

.mojs-buttons {
  display: flex;
  gap: var(--spacing-3);
  flex-wrap: wrap;
}

/* CSS 後備粒子動畫 */
.css-particle {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  animation: particle-burst 0.8s ease-out forwards;
  pointer-events: none;
}

@keyframes particle-burst {
  0% {
    transform: translate(-50%, -50%) translateX(0) translateY(0) scale(1);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, -50%)
               translateX(calc(cos(var(--angle)) * 80px))
               translateY(calc(sin(var(--angle)) * 80px))
               scale(0);
    opacity: 0;
  }
}

/* CSS 後備漣漪動畫 */
.css-ripple {
  position: absolute;
  width: 10px;
  height: 10px;
  border: 3px solid var(--color-cyan);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation: ripple-expand 0.8s ease-out forwards;
  pointer-events: none;
}

@keyframes ripple-expand {
  0% {
    width: 10px;
    height: 10px;
    opacity: 1;
  }
  100% {
    width: 200px;
    height: 200px;
    opacity: 0;
  }
}

/* 心形爆發 */
.heart-burst {
  position: absolute;
  font-size: 40px;
  transform: translate(-50%, -50%);
  animation: heart-pop 1s ease-out forwards;
  pointer-events: none;
}

@keyframes heart-pop {
  0% {
    transform: translate(-50%, -50%) scale(0);
    opacity: 1;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.5);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, -50%) scale(1) translateY(-50px);
    opacity: 0;
  }
}

/* ============================================
   對比表格
   ============================================ */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.comparison-table th,
.comparison-table td {
  padding: var(--spacing-3) var(--spacing-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border-muted);
}

.comparison-table th {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
}

.comparison-table td {
  color: var(--color-text-secondary);
}

.comparison-table tr:hover td {
  background: var(--color-bg-tertiary);
}

/* ============================================
   響應式
   ============================================ */
@media (max-width: 639px) {
  .demo-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-4);
  }

  .mojs-buttons {
    flex-direction: column;
  }

  .mojs-buttons button {
    width: 100%;
  }

  .speed-control {
    flex-direction: column;
    align-items: flex-start;
  }

  .speed-control input[type="range"] {
    width: 100%;
    max-width: none;
  }

  .comparison-table {
    display: block;
    overflow-x: auto;
  }
}