/* 现代化响应式设计增强 */

/* 响应式断点优化 */
@media (max-width: 1200px) {
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}

/* ⚠️ 已禁用：此规则与 nav-fix.css 的PC/移动端侧边栏系统冲突。
   侧边栏响应式行为完全由 nav-fix.css 接管，请勿在此修改。
@media (max-width: 992px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease-in-out;
  }
  
  .sidebar.active {
    transform: translateX(0);
  }
  
  .main-content {
    margin-left: 0;
  }
}
*/

@media (max-width: 768px) {
  .card-grid {
    grid-template-columns: 1fr !important;
    gap: 1rem;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 1rem;
  }
  
  .table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  .mobile-hidden {
    display: none !important;
  }
  
  .mobile-full-width {
    width: 100% !important;
  }
}

@media (max-width: 576px) {
  .stats-grid {
    grid-template-columns: 1fr !important;
  }
  
  .btn-group {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .modal-dialog {
    margin: 1rem;
    max-width: calc(100% - 2rem);
  }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --border-color: #404040;
  }
  
  body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
  }
  
  .card {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
  }
}

/* 动画增强 */
.fade-in {
  animation: fadeIn 0.3s ease-in;
}

.slide-up {
  animation: slideUp 0.4s ease-out;
}

.pulse {
  animation: pulse 2s infinite;
}

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

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

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

/* 加载状态指示器 */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid #f3f3f3;
  border-top: 3px solid #3498db;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* 通知气泡 */
.notification-badge {
  position: relative;
}

.notification-badge::after {
  content: '';
  position: absolute;
  top: -2px;
  right: -2px;
  width: 8px;
  height: 8px;
  background-color: #ef4444;
  border-radius: 50%;
  border: 2px solid white;
}

/* 卡片悬停效果增强 */
.card-hover {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  transform: translateY(0);
}

.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);
}

/* 表格增强样式 */
.table-modern {
  border-collapse: separate;
  border-spacing: 0;
}

.table-modern th {
  background: linear-gradient(to bottom, #f8fafc, #f1f5f9);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.75rem;
}

.table-modern tr:hover td {
  background-color: #f8fafc;
}

/* 徽章增强 */
.badge-modern {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  transition: all 0.2s ease-in-out;
}

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

/* 按钮增强 */
.btn-modern {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  font-weight: 500;
  transition: all 0.2s ease-in-out;
  border: none;
  cursor: pointer;
}

.btn-modern:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.btn-modern:active {
  transform: translateY(0);
}

/* 模态框增强 */
.modal-backdrop {
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal-content {
  border: none;
  border-radius: 1rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

/* 进度条增强 */
.progress-modern {
  height: 0.5rem;
  border-radius: 9999px;
  overflow: hidden;
  background-color: #e5e7eb;
}

.progress-bar-modern {
  height: 100%;
  transition: width 0.6s ease;
  background: linear-gradient(90deg, #3b82f6, #8b5cf6);
}

/* 工具提示增强 */
.tooltip-modern {
  position: relative;
  display: inline-block;
}

.tooltip-modern .tooltip-text {
  visibility: hidden;
  width: 200px;
  background-color: #1f2937;
  color: #f9fafb;
  text-align: center;
  border-radius: 0.5rem;
  padding: 0.5rem;
  position: absolute;
  z-index: 1000;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  transition: opacity 0.3s;
  font-size: 0.875rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.tooltip-modern:hover .tooltip-text {
  visibility: visible;
  opacity: 1;
}

/* 响应式网格系统 */
.grid-responsive {
  display: grid;
  gap: 1.5rem;
}

.grid-responsive.cols-1 { grid-template-columns: 1fr; }
.grid-responsive.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-responsive.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-responsive.cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid-responsive.cols-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-responsive.cols-2,
  .grid-responsive.cols-3,
  .grid-responsive.cols-4 { 
    grid-template-columns: 1fr; 
  }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
  .card-hover:hover {
    transform: none;
  }
  
  .btn-modern:hover {
    transform: none;
  }
  
  /* 增大触摸目标 */
  .touch-target {
    min-height: 44px;
    min-width: 44px;
  }
}

/* 打印样式优化 */
@media print {
  .no-print {
    display: none !important;
  }
  
  .print-only {
    display: block !important;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.4;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #ddd;
    page-break-inside: avoid;
  }
}

/* 可访问性增强 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.focus-visible:focus {
  outline: 2px solid #3b82f6;
  outline-offset: 2px;
}

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