/* ── S4: 源管理页专用样式 ── */

/* 源列表容器 */
.sources-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 28px;
}

/* 源卡片 */
.source-card {
  background: var(--card-bg);
  backdrop-filter: var(--card-blur);
  -webkit-backdrop-filter: var(--card-blur);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: box-shadow 0.15s;
}

.source-card:hover { box-shadow: 0 6px 20px rgba(0,0,0,0.07); }

.source-card.source-card--missing {
  opacity: 0.6;
  border-style: dashed;
}

/* 差距警示条 */
.source-gap-banner {
  background: #fff3cd;
  border-bottom: 1px solid #ffc107;
  padding: 7px 20px;
  font-size: 12px;
  color: #856404;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* 卡片主体 */
.source-card-body {
  padding: 16px 20px;
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

/* 左侧标识区 */
.source-card-left {
  min-width: 140px;
  flex-shrink: 0;
}

.source-card-id {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.source-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 500;
  padding: 3px 9px;
  border-radius: 10px;
}

.source-badge--active   { background: #e8f5e9; color: #2e7d32; }
.source-badge--empty    { background: #f5f5f5; color: #757575; }
.source-badge--gap      { background: #fff8e1; color: #f57f17; }
.source-badge--missing  { background: #fce4ec; color: #c62828; }
.source-badge--disabled { background: #f0f0f0; color: #9e9e9e; }

/* 中间详情区 */
.source-card-detail {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px 20px;
}

.source-detail-item {}

.source-detail-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 3px;
}

.source-detail-value {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
}

.source-detail-value.source-detail-value--warn { color: #f57f17; }
.source-detail-value.source-detail-value--path {
  font-family: monospace;
  font-size: 12px;
  color: var(--text-secondary);
  word-break: break-all;
}

/* 右侧操作区 */
.source-card-actions {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.source-tree-toggle {
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: transparent;
  font-size: 12px;
  font-weight: 500;
  color: var(--accent);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: background 0.15s;
  white-space: nowrap;
}

.source-tree-toggle:hover { background: var(--accent-soft); }

.source-tree-toggle .toggle-arrow {
  display: inline-block;
  transition: transform 0.2s;
  font-style: normal;
}

.source-tree-toggle.expanded .toggle-arrow { transform: rotate(180deg); }

/* 目录树区域 */
.source-tree-wrap {
  border-top: 1px solid var(--border);
  padding: 14px 20px;
  background: rgba(0,0,0,0.015);
}

.tree-loading { font-size: 12px; color: var(--text-secondary); padding: 8px 0; }

.tree-root { list-style: none; padding: 0; margin: 0; }

.tree-node {
  margin-bottom: 6px;
}

.tree-node-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  padding: 4px 0;
}

.tree-node-icon { font-size: 14px; }

.tree-node-name { flex: 1; }

.tree-node-count {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
  background: rgba(0,0,0,0.05);
  padding: 2px 7px;
  border-radius: 8px;
}

.tree-children {
  list-style: none;
  padding: 0 0 0 22px;
  margin: 4px 0 0 0;
  border-left: 2px solid var(--border);
}

.tree-child-node {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-primary);
  padding: 3px 0;
}

.tree-child-name { flex: 1; }

.tree-child-count {
  font-size: 11px;
  color: var(--text-secondary);
}

.tree-empty { font-size: 12px; color: var(--text-secondary); padding: 6px 0; }

/* 缺失源警告 */
.source-missing-warn {
  margin: 8px 20px 14px;
  background: #fce4ec;
  border: 1px solid #ef9a9a;
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 12px;
  color: #c62828;
}

/* 扫描控制区 */
.sources-scan-section {
  margin-top: 8px;
  padding: 18px 20px;
  background: var(--card-bg);
  backdrop-filter: var(--card-blur);
  -webkit-backdrop-filter: var(--card-blur);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.sources-scan-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn-scan {
  padding: 8px 18px;
  border: 1px solid #ccc;
  border-radius: 20px;
  background: #f5f5f5;
  color: #aaa;
  font-size: 13px;
  font-weight: 500;
  cursor: not-allowed;
  transition: none;
}