/**
 * UI Enhance — 通用微交互样式库
 * 适用于任何使用 CSS Variables 做主题的项目
 *
 * 依赖的 CSS 变量（需在 :root 或主题选择器中定义）:
 *   --bg-card, --bg-card-hover, --bg-secondary
 *   --border-color, --border-light
 *   --text-primary, --text-muted
 *   --color-brand, --color-brand-dark
 *   --scrollbar-thumb
 *
 * 用法: <link rel="stylesheet" href="lib/css/ui-enhance.css">
 */

/* ============================================================
   1. 卡片悬浮效果
   ============================================================ */
.card-hover {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              border-color 0.3s;
  will-change: transform;
}
.card-hover:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12),
              0 0 30px rgba(229, 57, 53, 0.08);
  border-color: var(--color-brand, #E53935);
}

.card-soft {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              border-color 0.3s;
  will-change: transform;
}
.card-soft:hover {
  transform: translateY(-3px);
  border-color: var(--color-brand, #E53935);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12),
              0 0 20px rgba(229, 57, 53, 0.06);
}

/* ============================================================
   2. 毛玻璃卡片
   ============================================================ */
.glass-card {
  backdrop-filter: blur(12px) saturate(150%);
  -webkit-backdrop-filter: blur(12px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  transition: border-color 0.4s, box-shadow 0.4s, transform 0.3s;
}
.glass-card:hover {
  border-color: rgba(229, 57, 53, 0.3);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  transform: translateY(-2px);
}

/* ============================================================
   3. 按钮交互
   ============================================================ */
.btn-press {
  position: relative;
  overflow: hidden;
  transition: transform 0.15s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.15s;
}
.btn-press:active {
  transform: scale(0.95);
  transition: transform 0.08s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.btn-press::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at var(--ripple-x, 50%) var(--ripple-y, 50%),
    rgba(255, 255, 255, 0.25) 0%,
    transparent 70%
  );
  opacity: 0;
  transition: opacity 0.5s;
  pointer-events: none;
}
.btn-press.ripple::after {
  opacity: 1;
  transition: opacity 0s;
}

/* 主要按钮 */
.btn-primary {
  background: linear-gradient(135deg, var(--color-brand, #E53935), var(--color-brand-dark, #C62828));
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: 0.625rem 1.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.25s, box-shadow 0.25s, filter 0.25s;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(229, 57, 53, 0.4);
  filter: brightness(1.05);
}
.btn-primary:active {
  transform: translateY(0) scale(0.97);
  box-shadow: 0 4px 12px rgba(229, 57, 53, 0.3);
}

/* 轮廓按钮 */
.btn-outline {
  background: transparent;
  color: var(--color-brand, #E53935);
  border: 1.5px solid var(--color-brand, #E53935);
  border-radius: 12px;
  padding: 0.625rem 1.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.25s, transform 0.25s, box-shadow 0.25s;
}
.btn-outline:hover {
  background: rgba(229, 57, 53, 0.08);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(229, 57, 53, 0.15);
}

/* ============================================================
   4. 表格样式
   ============================================================ */
.stock-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}
.stock-table thead th {
  background: var(--bg-secondary, #ffffff);
  color: var(--text-muted, #94a3b8);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--border-color, #e2e8f0);
  position: sticky;
  top: 0;
  z-index: 10;
  cursor: pointer;
  user-select: none;
  transition: color 0.15s;
}
.stock-table thead th:hover {
  color: var(--text-primary, #0f172a);
}
.stock-table thead th.sort-asc::after {
  content: ' ▲';
  color: var(--color-brand, #E53935);
  font-size: 0.65em;
}
.stock-table thead th.sort-desc::after {
  content: ' ▼';
  color: var(--color-brand, #E53935);
  font-size: 0.65em;
}
.stock-table tbody tr {
  transition: background 0.15s ease, transform 0.1s ease;
}
.stock-table tbody tr:hover {
  background: var(--bg-card-hover, #f1f5f9);
}
.stock-table tbody tr:nth-child(even) {
  background: rgba(0, 0, 0, 0.015);
}
.stock-table tbody td {
  padding: 0.625rem 1rem;
  border-bottom: 1px solid var(--border-light, #f1f5f9);
  transition: color 0.15s;
}

/* 暗色主题斑马纹适配 */
[data-theme="dark"] .stock-table tbody tr:nth-child(even),
[data-theme="blue"] .stock-table tbody tr:nth-child(even),
[data-theme="green"] .stock-table tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.02);
}

/* ============================================================
   5. Tab 指示器
   ============================================================ */
.main-tab {
  position: relative;
  transition: color 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.main-tab::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 3px;
  background: var(--color-brand, #E53935);
  border-radius: 3px 3px 0 0;
  transition: width 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
              left 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.main-tab.active::after {
  width: 100%;
  left: 0;
}

/* ============================================================
   6. 输入框聚焦光效
   ============================================================ */
input[type="text"]:focus,
input[type="number"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
select:focus,
textarea:focus {
  box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.15),
              0 0 16px rgba(229, 57, 53, 0.06);
  border-color: var(--color-brand, #E53935) !important;
  outline: none;
}

/* ============================================================
   7. 涨跌数字弹跳
   ============================================================ */
@keyframes pricePop {
  0% { transform: scale(1); }
  40% { transform: scale(1.08); }
  70% { transform: scale(0.97); }
  100% { transform: scale(1); }
}
.price-pop {
  animation: pricePop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ============================================================
   8. 骨架屏
   ============================================================ */
.skeleton {
  background: linear-gradient(
    105deg,
    var(--bg-card, #ffffff) 30%,
    var(--bg-card-hover, #f1f5f9) 50%,
    var(--bg-card, #ffffff) 70%
  );
  background-size: 300% 100%;
  animation: skeletonShimmer 2s ease-in-out infinite;
  border-radius: 8px;
}
@keyframes skeletonShimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -100% 0; }
}

/* ============================================================
   9. 搜索下拉
   ============================================================ */
.search-dropdown {
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2),
              0 0 0 1px rgba(255, 255, 255, 0.05);
  transform-origin: top center;
  transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.search-item {
  transition: background 0.15s, padding-left 0.2s ease;
  border-radius: 8px;
  margin: 2px 4px;
}
.search-item:hover {
  background: rgba(229, 57, 53, 0.1);
  padding-left: 1.25rem;
}

/* ============================================================
   10. Modal 弹窗
   ============================================================ */
.modal-overlay {
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  background: rgba(0, 0, 0, 0.6);
  transition: opacity 0.3s;
}
.modal-enter {
  animation: modalEnterSpring 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}
@keyframes modalEnterSpring {
  from { opacity: 0; transform: scale(0.92) translateY(16px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.modal-leave {
  animation: modalLeaveSmooth 0.2s cubic-bezier(0.4, 0, 1, 1) forwards;
}
@keyframes modalLeaveSmooth {
  to { opacity: 0; transform: scale(0.95) translateY(8px); }
}

/* ============================================================
   11. 滚动条
   ============================================================ */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb, #cbd5e1);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted, #94a3b8);
}

/* ============================================================
   12. Loading Spinner
   ============================================================ */
.spinner-brand {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border-color, #e2e8f0);
  border-top-color: var(--color-brand, #E53935);
  border-radius: 50%;
  animation: spinRotate 0.8s linear infinite;
}
@keyframes spinRotate {
  to { transform: rotate(360deg); }
}

/* ============================================================
   13. Badge 微光
   ============================================================ */
.vip-badge {
  position: relative;
  overflow: hidden;
}
.vip-badge::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent 30%,
    rgba(255, 255, 255, 0.15) 50%,
    transparent 70%
  );
  animation: badgeShine 3s ease-in-out infinite;
  pointer-events: none;
}
@keyframes badgeShine {
  0% { transform: translateX(-100%) rotate(45deg); }
  100% { transform: translateX(100%) rotate(45deg); }
}

/* ============================================================
   14. 渐入动画工具类
   ============================================================ */
.fade-in-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger 延迟 */
.stagger-1 { transition-delay: 0.05s; }
.stagger-2 { transition-delay: 0.1s; }
.stagger-3 { transition-delay: 0.15s; }
.stagger-4 { transition-delay: 0.2s; }
.stagger-5 { transition-delay: 0.25s; }
.stagger-6 { transition-delay: 0.3s; }

/* ============================================================
   15. 脉冲指示点
   ============================================================ */
.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-brand, #E53935);
  position: relative;
}
.pulse-dot::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: var(--color-brand, #E53935);
  opacity: 0.4;
  animation: pulseDotPing 1.5s ease-in-out infinite;
}
@keyframes pulseDotPing {
  0%, 100% { transform: scale(0.8); opacity: 0.4; }
  50% { transform: scale(1.5); opacity: 0; }
}

/* ============================================================
   16. 数据刷新闪烁
   ============================================================ */
@keyframes dataFlashUp {
  0% { background-color: rgba(229, 57, 53, 0.15); }
  100% { background-color: transparent; }
}
@keyframes dataFlashDown {
  0% { background-color: rgba(76, 175, 80, 0.15); }
  100% { background-color: transparent; }
}
.data-flash-up { animation: dataFlashUp 0.6s ease-out; }
.data-flash-down { animation: dataFlashDown 0.6s ease-out; }