/* 夸克资源站 - 自定义样式 */
/* 磨砂玻璃 + 暗黑主题 (Glassmorphism Dark) */

:root {
  /* 主色调 */
  --bg-primary: #0a0a0f;
  --bg-secondary: #111827;
  --accent-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  
  /* 磨砂玻璃效果 */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-bg-hover: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-border-hover: rgba(255, 255, 255, 0.2);
  
  /* 文字颜色 */
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.5);
}

/* 基础样式 */
body {
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
}

/* 渐变背景 */
.bg-gradient-main {
  background: linear-gradient(135deg, #0a0a0f 0%, #1a1a2e 50%, #16213e 100%);
  background-attachment: fixed;
}

/* 动态光效背景 */
.bg-glow {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.bg-glow::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 30%, rgba(102, 126, 234, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 70% 70%, rgba(118, 75, 162, 0.1) 0%, transparent 50%);
  animation: glow-rotate 20s linear infinite;
}

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

/* 磨砂玻璃卡片 */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
}

.glass-card:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

/* 磨砂玻璃导航栏 */
.glass-nav {
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--glass-border);
}

/* 磨砂玻璃输入框 */
.glass-input {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  color: var(--text-primary);
  transition: all 0.3s ease;
}

.glass-input:focus {
  outline: none;
  border-color: var(--accent-purple);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
}

.glass-input::placeholder {
  color: var(--text-muted);
}

/* 渐变按钮 */
.btn-gradient {
  background: var(--accent-gradient);
  color: white;
  border: none;
  border-radius: 12px;
  padding: 12px 24px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.btn-gradient:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

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

/* 磨砂玻璃按钮 */
.btn-glass {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  border-radius: 12px;
  padding: 10px 20px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-glass:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
}

/* 分类标签 */
.category-tag {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 8px 16px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.category-tag:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  color: var(--text-primary);
}

.category-tag.active {
  background: var(--accent-gradient);
  border-color: transparent;
  color: white;
}

/* 排序下拉框 */
.sort-select {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  color: var(--text-primary);
  padding: 8px 16px;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23ffffff'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 40px;
}

.sort-select:focus {
  outline: none;
  border-color: var(--accent-purple);
}

.sort-select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

/* 资源卡片 */
.resource-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.resource-card .card-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.resource-card .card-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.resource-card .card-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 1rem;
}

.resource-card .card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.resource-card .card-size {
  background: rgba(139, 92, 246, 0.2);
  color: var(--accent-purple);
  padding: 2px 8px;
  border-radius: 4px;
}

.resource-card .card-clicks {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 2rem;
}

.pagination-btn {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text-secondary);
  padding: 8px 16px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.pagination-btn:hover:not(:disabled) {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  color: var(--text-primary);
}

.pagination-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.pagination-btn.active {
  background: var(--accent-gradient);
  border-color: transparent;
  color: white;
}

/* 搜索框 */
.search-box {
  position: relative;
}

.search-box input {
  width: 100%;
  padding-left: 40px;
}

.search-box .search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

/* 管理后台侧边栏 */
.admin-sidebar {
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-right: 1px solid var(--glass-border);
  min-height: 100vh;
}

.admin-sidebar .nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.3s ease;
  border-left: 3px solid transparent;
}

.admin-sidebar .nav-item:hover {
  background: var(--glass-bg);
  color: var(--text-primary);
}

.admin-sidebar .nav-item.active {
  background: var(--glass-bg);
  color: var(--text-primary);
  border-left-color: var(--accent-purple);
}

/* 表格样式 */
.glass-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

.glass-table th {
  background: var(--glass-bg);
  color: var(--text-secondary);
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--glass-border);
}

.glass-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--glass-border);
  color: var(--text-primary);
}

.glass-table tr:hover td {
  background: var(--glass-bg);
}

/* 模态框 */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 24px;
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
}

/* 表单样式 */
.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
}

/* 通知消息 */
.toast {
  position: fixed;
  top: 20px;
  right: 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 16px 24px;
  color: var(--text-primary);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  z-index: 2000;
  animation: toast-in 0.3s ease;
}

.toast.success {
  border-left: 4px solid #10b981;
}

.toast.error {
  border-left: 4px solid #ef4444;
}

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

/* 加载动画 */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--glass-border);
  border-radius: 50%;
  border-top-color: var(--accent-purple);
  animation: spin 1s linear infinite;
}

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

/* 骨架屏 */
.skeleton {
  background: linear-gradient(90deg, var(--glass-bg) 25%, var(--glass-bg-hover) 50%, var(--glass-bg) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: 8px;
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* 响应式 */
@media (max-width: 1024px) {
  .resource-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .resource-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .admin-sidebar {
    position: fixed;
    left: -100%;
    top: 0;
    width: 250px;
    z-index: 100;
    transition: left 0.3s ease;
  }
  
  .admin-sidebar.open {
    left: 0;
  }
}

@media (max-width: 480px) {
  .resource-grid {
    grid-template-columns: 1fr;
  }
}

/* 滚动条样式 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--glass-border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--glass-border-hover);
}

/* 文字选中样式 */
::selection {
  background: rgba(139, 92, 246, 0.3);
  color: white;
}