/* 微交互动画与触摸反馈
   依赖 design-system.css 的 motion tokens，禁止在此重新定义 --transition-* 时长格式
*/

/* 本地缓动别名（与 design-system 对齐，作兜底） */
:root {
  --bounce-ease: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --smooth-ease: var(--ease-out, cubic-bezier(0.22, 0.61, 0.36, 1));
}

/* 按钮点击反馈 */
.btn {
  position: relative;
  overflow: hidden;
  transition:
    transform var(--transition-fast, 120ms var(--smooth-ease)),
    box-shadow var(--transition-fast, 120ms var(--smooth-ease)),
    background-color var(--transition-base, 200ms var(--smooth-ease)),
    border-color var(--transition-base, 200ms var(--smooth-ease)),
    color var(--transition-fast, 120ms var(--smooth-ease)),
    opacity var(--transition-fast, 120ms var(--smooth-ease));
}

.btn:active {
  transform: scale(0.98);
}

/* 卡片：仅声明过渡，上浮由可导航卡片自行定义 */
.card {
  transition:
    transform var(--transition-base, 200ms var(--smooth-ease)),
    box-shadow var(--transition-base, 200ms var(--smooth-ease)),
    border-color var(--transition-base, 200ms var(--smooth-ease));
}

/* 输入框焦点：ring 即可，避免 scale 造成布局抖动 */
.form-control {
  transition:
    border-color var(--transition-base, 200ms var(--smooth-ease)),
    box-shadow var(--transition-base, 200ms var(--smooth-ease)),
    background-color var(--transition-base, 200ms var(--smooth-ease));
}

.form-control:focus {
  box-shadow: 0 0 0 3px var(--ring-color, rgba(0, 123, 255, 0.15));
}

/* 加载状态指示器 */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s ease-in-out infinite;
}

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

/* 脉冲动画 */
.pulse {
  animation: pulse 2s infinite;
}

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

/* 淡入动画 */
.fade-in {
  animation: fadeIn 0.35s var(--smooth-ease);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 步骤内容区进入动画 */
@keyframes section-enter {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 滑入动画 */
.slide-in {
  animation: slideIn 0.3s var(--smooth-ease);
}

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

/* 弹跳动画 */
.bounce-in {
  animation: bounceIn 0.6s var(--bounce-ease);
}

@keyframes bounceIn {
  0% { transform: scale(0.3); opacity: 0; }
  50% { transform: scale(1.05); }
  70% { transform: scale(0.9); }
  100% { transform: scale(1); opacity: 1; }
}

/* 移动端触摸反馈 */
@media (hover: none) and (pointer: coarse) {
  .btn {
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
  }

  .btn:active {
    transform: scale(0.98);
  }
}

/* 滚动优化 */
.smooth-scroll {
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

/* 减少动画（用户偏好） */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* 加载状态遮罩 */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--transition-base, 200ms var(--smooth-ease)),
    visibility var(--transition-base, 200ms var(--smooth-ease));
}

.loading-overlay.show {
  opacity: 1;
  visibility: visible;
}

/* 进度条动画 */
.progress-bar {
  height: 4px;
  background: linear-gradient(90deg, var(--primary, #007bff), #28a745);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}

.progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { left: -100%; }
  100% { left: 100%; }
}

/* 工具提示动画 */
.tooltip {
  transition:
    opacity var(--transition-fast, 120ms var(--smooth-ease)),
    transform var(--transition-fast, 120ms var(--smooth-ease));
  transform: scale(0.96);
  transform-origin: center bottom;
}

.tooltip.show {
  transform: scale(1);
}

/* 状态切换动画 */
.status-transition {
  transition:
    color var(--transition-base, 200ms var(--smooth-ease)),
    transform var(--transition-base, 200ms var(--smooth-ease));
}

.status-transition.connected {
  color: #28a745;
}

.status-transition.disconnected {
  color: #dc3545;
}

/* 骨架屏动画 */
@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/*
 * 步骤当前态脉冲环（恢复原效果：scale + 外扩阴影）
 * --step-pulse-color 默认用高对比蓝；品牌页可覆盖
 * 注意：不可用与步骤圆同色的 --primary（如 giffgaff 黄），否则几乎看不见
 */
@keyframes pulse-ring {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 var(--step-pulse-color, rgba(13, 110, 253, 0.7));
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 10px color-mix(in srgb, var(--step-pulse-color, rgba(13, 110, 253, 0.7)) 0%, transparent);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 color-mix(in srgb, var(--step-pulse-color, rgba(13, 110, 253, 0.7)) 0%, transparent);
  }
}