/* css/file-list.css - 深度美化升级版 */

/* ========== 文件列表容器 ========== */
.file-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* ========== 列表表头 ========== */
.file-list-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 8px 16px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 4px;
  user-select: none;
}

.file-list-header .col-name {
  flex: 1;
  min-width: 0;
  padding-left: 56px; /* 与文件图标+间距对齐 */
}

.file-list-header .col-size {
  width: 80px;
  text-align: right;
  flex-shrink: 0;
}

.file-list-header .col-date {
  width: 120px;
  text-align: right;
  flex-shrink: 0;
}

.file-list-header .col-actions {
  width: 200px;
  flex-shrink: 0;
}

/* ========== 文件项 - 现代卡片 ========== */
.file-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  background: var(--gradient-card);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  position: relative;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.file-item:hover {
  background: var(--bg-primary);
  border-color: var(--border-color);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.file-item:active {
  transform: translateY(0);
  box-shadow: var(--shadow-xs);
  transition-duration: 80ms;
}

/* 文件图标 - 圆角方形 */
.file-icon {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  transition: all var(--transition-base);
}

.file-icon svg {
  width: 22px;
  height: 22px;
}

/* 目录悬停效果 */
.file-item.is-directory:hover .file-icon {
  transform: scale(1.08);
}

/* 文件信息 */
.file-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.file-name {
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base);
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.file-meta {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  display: flex;
  gap: 16px;
  font-weight: var(--font-weight-normal);
}

.file-meta .meta-size {
  min-width: 70px;
}

.file-meta .meta-date {
  min-width: 80px;
}

/* 文件大小列 */
.file-size {
  width: 80px;
  text-align: right;
  flex-shrink: 0;
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  white-space: nowrap;
}

/* 文件日期列 */
.file-date {
  width: 120px;
  text-align: right;
  flex-shrink: 0;
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
  white-space: nowrap;
}

/* ========== 文件类型图标颜色 - 渐变 ========== */
.file-icon.folder {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  color: #d97706;
  box-shadow: 0 2px 8px rgba(217, 119, 6, 0.15);
}
.file-icon.image {
  background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
  color: #2563eb;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.15);
}
.file-icon.video {
  background: linear-gradient(135deg, #fce7f3 0%, #fbcfe8 100%);
  color: #db2777;
  box-shadow: 0 2px 8px rgba(219, 39, 119, 0.15);
}
.file-icon.audio {
  background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
  color: #4f46e5;
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.15);
}
.file-icon.document {
  background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
  color: #16a34a;
  box-shadow: 0 2px 8px rgba(22, 163, 74, 0.15);
}
.file-icon.pdf {
  background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
  color: #dc2626;
  box-shadow: 0 2px 8px rgba(220, 38, 38, 0.15);
}
.file-icon.code {
  background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
  color: #4b5563;
  box-shadow: 0 2px 8px rgba(75, 85, 99, 0.1);
}
.file-icon.archive {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  color: #b45309;
  box-shadow: 0 2px 8px rgba(180, 83, 9, 0.15);
}
.file-icon.text {
  background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
  color: #64748b;
  box-shadow: 0 2px 8px rgba(100, 116, 139, 0.1);
}
.file-icon.spreadsheet {
  background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
  color: #059669;
  box-shadow: 0 2px 8px rgba(5, 150, 105, 0.15);
}
.file-icon.presentation {
  background: linear-gradient(135deg, #ffe4e6 0%, #fecdd3 100%);
  color: #e11d48;
  box-shadow: 0 2px 8px rgba(225, 29, 72, 0.15);
}
.file-icon.file {
  background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
  color: #64748b;
  box-shadow: 0 2px 8px rgba(100, 116, 139, 0.1);
}

/* 目录名称 */
.file-item.is-directory .file-name {
  color: var(--text-primary);
}

.file-item:hover .file-name {
  color: var(--color-primary);
}

/* ========== 列表视图 ========== */
.file-list.view-list .file-item {
  flex-direction: row;
}

.file-list.view-list .file-info {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}

.file-list.view-list .file-name {
  flex: 1;
  min-width: 0;
}

/* ========== 网格视图 - 卡片化 ========== */
.file-list.view-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--spacing-md);
}

.file-list.view-grid .file-item {
  flex-direction: column;
  padding: 24px 16px 20px;
  text-align: center;
  border: 1px solid var(--border-color-light);
  background: var(--bg-primary);
}

.file-list.view-grid .file-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  transform: translateY(-3px);
}

.file-list.view-grid .file-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  margin-bottom: 8px;
}

.file-list.view-grid .file-icon svg {
  width: 28px;
  height: 28px;
}

.file-list.view-grid .file-info {
  flex-direction: column;
  align-items: center;
  gap: 4px;
  width: 100%;
}

.file-list.view-grid .file-name {
  text-align: center;
  word-break: break-word;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: var(--font-size-sm);
  line-height: 1.4;
}

.file-list.view-grid .file-meta {
  justify-content: center;
  font-size: 10px;
  gap: 8px;
}

/* ========== 文件项入场动画 ========== */
.file-item {
  animation: fileItemIn 0.35s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.file-item:nth-child(1) { animation-delay: 0.02s; }
.file-item:nth-child(2) { animation-delay: 0.04s; }
.file-item:nth-child(3) { animation-delay: 0.06s; }
.file-item:nth-child(4) { animation-delay: 0.08s; }
.file-item:nth-child(5) { animation-delay: 0.10s; }
.file-item:nth-child(6) { animation-delay: 0.12s; }
.file-item:nth-child(7) { animation-delay: 0.14s; }
.file-item:nth-child(8) { animation-delay: 0.16s; }
.file-item:nth-child(9) { animation-delay: 0.18s; }
.file-item:nth-child(10) { animation-delay: 0.20s; }
.file-item:nth-child(n+11) { animation-delay: 0.22s; }

@keyframes fileItemIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========== 欢迎卡片（Demo模式） ========== */
.welcome-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color-light);
  border-radius: var(--border-radius-lg);
  padding: 40px;
  text-align: center;
  margin-bottom: var(--spacing-lg);
  animation: fadeInUp 0.5s cubic-bezier(0.22, 1, 0.36, 1);
  box-shadow: var(--shadow-sm);
}

.welcome-card .welcome-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: var(--gradient-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: white;
  margin-bottom: var(--spacing-md);
  box-shadow: 0 8px 24px rgba(102, 126, 234, 0.25);
}

.welcome-card .welcome-icon svg {
  width: 32px;
  height: 32px;
}

.welcome-card h2 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.02em;
}

.welcome-card p {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.7;
}

.demo-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background: var(--gradient-primary-light);
  color: var(--color-primary);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-md);
  border: 1px solid rgba(102, 126, 234, 0.15);
}

/* ========== 文件操作按钮 ========== */
.file-actions {
  display: flex;
  gap: 6px;
  opacity: 0;
  transition: opacity var(--transition-fast);
  width: 200px;
  flex-shrink: 0;
  justify-content: flex-end;
}

.file-item:hover .file-actions {
  opacity: 1;
}

.action-btn {
  padding: 6px 12px;
  border: none;
  border-radius: 6px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  font-size: var(--font-size-xs);
  white-space: nowrap;
}

.action-btn:hover {
  background: var(--color-primary);
  color: white;
  transform: scale(1.05);
}

.action-btn:active {
  transform: scale(0.95);
}

.action-btn .btn-text {
  font-size: 12px;
  font-weight: 500;
}

.action-btn.delete-btn {
  color: var(--color-danger);
}

.action-btn.delete-btn:hover {
  background: var(--color-danger);
  color: white;
}

/* 响应式：小屏幕下只显示文字 */
@media (max-width: 768px) {
  .action-btn {
    padding: 4px 8px;
  }
  .action-btn .btn-text {
    font-size: 11px;
  }
}

/* ========== 文件路径显示 ========== */
.file-path {
  display: block;
  font-size: 11px;
  color: var(--text-tertiary);
  font-family: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
  margin-top: 2px;
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--transition-fast), color var(--transition-fast);
  padding: 2px 0;
  border-radius: 4px;
}

.file-item:hover .file-path {
  opacity: 1;
}

.file-path:hover {
  color: var(--color-primary);
  background: rgba(102, 126, 234, 0.08);
}

/* 网格视图下路径样式 */
.view-grid .file-path {
  font-size: 10px;
  max-width: 100%;
}

/* ========== 管理员操作区 ========== */
.admin-actions {
  display: flex;
  gap: 4px;
  align-items: center;
}

.admin-action-btn {
  position: relative;
}

.admin-action-btn::after {
  content: '';
  position: absolute;
  bottom: 2px;
  right: 2px;
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
}

/* ========== 上传区域 ========== */
.upload-area {
  margin-bottom: var(--spacing-lg);
}

.upload-drag {
  border: 2px dashed var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl) var(--spacing-lg);
  text-align: center;
  transition: all var(--transition-base);
  background: var(--bg-secondary);
  color: var(--text-secondary);
}

.upload-drag.drag-over {
  border-color: var(--color-primary);
  background: var(--gradient-primary-light);
  color: var(--color-primary);
}

.upload-drag svg {
  opacity: 0.5;
  margin-bottom: var(--spacing-sm);
}

.upload-drag p {
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-xs);
}

.upload-drag span {
  font-size: var(--font-size-xs);
  color: var(--text-tertiary);
}

.upload-select-btn {
  margin-top: var(--spacing-sm);
  padding: 8px 20px;
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: opacity var(--transition-fast);
}

.upload-select-btn:hover {
  opacity: 0.9;
}

.upload-progress {
  margin-top: var(--spacing-md);
}

.upload-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 8px 12px;
  background: var(--bg-secondary);
  border-radius: var(--border-radius-md);
  margin-bottom: 6px;
  font-size: var(--font-size-xs);
}

.upload-item-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-primary);
}

.upload-item-size {
  color: var(--text-tertiary);
  min-width: 60px;
}

.upload-item-bar {
  width: 100px;
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: 2px;
  overflow: hidden;
}

.upload-item-progress {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 2px;
  transition: width 0.3s;
}

.upload-item-status {
  min-width: 80px;
  text-align: right;
  color: var(--text-tertiary);
}

/* ========== 右键菜单/操作模态框 ========== */
.context-menu {
  padding: var(--spacing-sm);
}

.context-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  width: 100%;
  padding: 10px 16px;
  background: transparent;
  border: none;
  border-radius: var(--border-radius-md);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.context-item:hover {
  background: var(--bg-tertiary);
}

.context-item.danger {
  color: var(--color-danger);
}

.context-item.danger:hover {
  background: rgba(248, 81, 73, 0.1);
}

.context-item svg {
  width: 18px;
  height: 18px;
  opacity: 0.7;
}

.context-divider {
  height: 1px;
  background: var(--border-color);
  margin: var(--spacing-xs) 0;
}

/* ========== 登录表单 ========== */
.login-form {
  padding: var(--spacing-md);
}

.login-form .form-group {
  margin-bottom: var(--spacing-md);
}

.login-form label {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.login-form input {
  width: 100%;
  padding: 10px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  outline: none;
  transition: border-color var(--transition-fast);
}

.login-form input:focus {
  border-color: var(--color-primary);
}

.login-error {
  color: var(--color-danger);
  font-size: var(--font-size-xs);
  text-align: center;
  min-height: 20px;
  margin-bottom: var(--spacing-sm);
}

.btn-primary {
  width: 100%;
  padding: 10px;
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: opacity var(--transition-fast);
}

.btn-primary:hover { opacity: 0.9; }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-secondary {
  padding: 10px 20px;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-sm);
  cursor: pointer;
}

.btn-secondary:hover { background: var(--bg-secondary); }

.move-copy-form {
  padding: var(--spacing-md);
}

.move-copy-form .form-group {
  margin-bottom: var(--spacing-md);
}

.move-copy-form label {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.move-copy-form input {
  width: 100%;
  padding: 10px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  outline: none;
}

.move-copy-form input:focus {
  border-color: var(--color-primary);
}

.move-copy-form input[readonly] {
  opacity: 0.6;
}

.form-actions {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: flex-end;
}