/* Vue Document Components - 现代化主题样式 */

/* CSS 变量定义 */
:root {
  /* 主色调 */
  --primary-color: #409eff;
  --secondary-color: #67c23a;
  --accent-color: #e6a23c;
  --danger-color: #f56c6c;
  
  /* 渐变色 */
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --success-gradient: linear-gradient(135deg, #409EFF, #67C23A);
  --glass-gradient: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
  
  /* 背景色 */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #e9ecef;
  --bg-dark: #1a1a1a;
  
  /* 文字颜色 */
  --text-primary: #303133;
  --text-secondary: #606266;
  --text-tertiary: #909399;
  --text-light: #c0c4cc;
  
  /* 阴影效果 */
  --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 8px 24px rgba(0, 0, 0, 0.15);
  --shadow-heavy: 0 16px 48px rgba(0, 0, 0, 0.2);
  --shadow-color: 0 8px 32px rgba(64, 158, 255, 0.15);
  
  /* 圆角 */
  --radius-small: 6px;
  --radius-medium: 12px;
  --radius-large: 16px;
  --radius-xl: 24px;
  
  /* 间距 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  
  /* 动画时长 */
  --duration-fast: 0.2s;
  --duration-normal: 0.3s;
  --duration-slow: 0.5s;
  
  /* 缓动函数 */
  --ease-out-back: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --ease-out-circ: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
}

/* 全局动画类 */
.fade-enter-active,
.fade-leave-active {
  transition: all var(--duration-normal) var(--ease-out-circ);
}

.fade-enter-from,
.fade-leave-to {
  opacity: 0;
  transform: scale(0.95);
}

.slide-up-enter-active,
.slide-up-leave-active {
  transition: all var(--duration-slow) var(--ease-out-back);
}

.slide-up-enter-from,
.slide-up-leave-to {
  opacity: 0;
  transform: translateY(30px);
}

.scale-enter-active,
.scale-leave-active {
  transition: all var(--duration-normal) var(--ease-out-back);
}

.scale-enter-from,
.scale-leave-to {
  opacity: 0;
  transform: scale(0.8);
}

/* 通用动画效果 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

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

@keyframes ripple {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* 毛玻璃效果 */
.glass-effect {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* 高级按钮样式 */
.modern-button {
  position: relative;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-medium);
  font-weight: 600;
  font-size: 14px;
  border: none;
  cursor: pointer;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out-back);
  background: var(--success-gradient);
  color: white;
  box-shadow: var(--shadow-color);
}

.modern-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.6s;
}

.modern-button:hover::before {
  left: 100%;
}

.modern-button:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 35px rgba(64, 158, 255, 0.4);
}

.modern-button:active {
  transform: translateY(-1px) scale(1.01);
}

/* 卡片样式 */
.modern-card {
  background: var(--bg-primary);
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-medium);
  padding: var(--spacing-xl);
  transition: all var(--duration-normal) var(--ease-out-circ);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.modern-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-heavy);
}

/* 输入框样式 */
.modern-input {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid transparent;
  border-radius: var(--radius-medium);
  background: var(--bg-secondary);
  transition: all var(--duration-normal) var(--ease-out-circ);
  font-size: 14px;
}

.modern-input:focus {
  outline: none;
  border-color: var(--primary-color);
  background: var(--bg-primary);
  box-shadow: 0 0 0 4px rgba(64, 158, 255, 0.1);
}

/* 加载动画 */
.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(64, 158, 255, 0.2);
  border-left-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* 响应式工具类 */
@media (max-width: 768px) {
  :root {
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 24px;
    --spacing-2xl: 32px;
  }
  
  .modern-button {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 13px;
  }
  
  .modern-card {
    padding: var(--spacing-lg);
    border-radius: var(--radius-medium);
  }
}

/* 暗色主题支持 */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #404040;
    --text-primary: #ffffff;
    --text-secondary: #e0e0e0;
    --text-tertiary: #b0b0b0;
  }
}

/* 减少动画偏好支持 */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}