:root{--tree-indent: 16px;--row-height: 30px;--accent: #2563eb;--hover-bg: #f3f4f6;--selected-bg: #e8f0fe;--text: #1f2937;--muted: #6b7280;--line: #d1d5db}body{margin:0;font-family:Segoe UI,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;color:var(--text);background:#fff}.app{padding:12px}.header{margin-bottom:10px}.header h1{margin:0 0 4px;font-size:18px;font-weight:600}.status{min-height:18px;margin-top:4px;font-size:12px;color:var(--muted)}.tree{font-size:13px;-webkit-user-select:none;user-select:none}.tree-folder,.tree-children{position:relative}.tree-children{margin-left:0}.tree-folder.is-collapsed>.tree-children{display:none}.tree-row{position:relative;display:flex;align-items:center;width:100%;min-height:var(--row-height);padding:4px 6px 4px calc(6px + (var(--level) * var(--tree-indent)));border:0;border-radius:4px;background:transparent;color:var(--text);font:inherit;text-align:left;cursor:pointer}.tree-row:hover{background:var(--hover-bg)}.tree-file-row.is-selected{background:var(--selected-bg);color:#0f3f9f}.tree-chevron,.tree-chevron-placeholder{width:16px;min-width:16px;display:inline-flex;justify-content:center;color:var(--muted);font-size:11px}.tree-icon{width:20px;min-width:20px;margin-right:4px;font-size:15px;line-height:1}.tree-label{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tree-row:before{content:"";position:absolute;left:calc(13px + ((var(--level) - 1) * var(--tree-indent)));top:0;bottom:0;width:1px;background:var(--line);display:none}.tree-row:after{content:"";position:absolute;left:calc(13px + ((var(--level) - 1) * var(--tree-indent)));top:50%;width:10px;height:1px;background:var(--line);display:none}.tree-row[style*="--level: 1"]:before,.tree-row[style*="--level: 1"]:after,.tree-row[style*="--level: 2"]:before,.tree-row[style*="--level: 2"]:after,.tree-row[style*="--level: 3"]:before,.tree-row[style*="--level: 3"]:after,.tree-row[style*="--level: 4"]:before,.tree-row[style*="--level: 4"]:after,.tree-row[style*="--level: 5"]:before,.tree-row[style*="--level: 5"]:after,.tree-row[style*="--level: 6"]:before,.tree-row[style*="--level: 6"]:after{display:block}.tree-children[hidden]{display:none!important}.tree-folder-row{font-weight:600}.tree-arrow{width:16px;min-width:16px;display:inline-flex;justify-content:center;margin-right:2px;color:#6b7280}.tree-arrow-placeholder{width:16px;min-width:16px;display:inline-flex;margin-right:2px}.tree-file-wrapper{position:relative}.inline-slides{margin:6px 0 10px calc(8px + (var(--level) * var(--tree-indent)));padding:10px;border:1px solid var(--border);border-radius:12px;background:#f8fafc;box-shadow:inset 0 0 0 1px #ffffffa6}.inline-slides[hidden]{display:none!important}.inline-slides-header{display:flex;align-items:flex-start;justify-content:space-between;gap:8px;margin-bottom:8px}.inline-slides-title{min-width:0;font-size:12px;font-weight:650;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.inline-slides-helper{margin-bottom:8px;font-size:11px;color:var(--text-muted)}.inline-slides-message,.inline-slides-error{padding:10px;border-radius:8px;font-size:12px;line-height:1.4}.inline-slides-message{color:var(--text-muted);background:#fff;border:1px dashed var(--border-strong)}.inline-slides-error{color:#991b1b;background:#fef2f2;border:1px solid #fecaca}.inline-slides-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.inline-slides-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;align-items:start}.slide-card{width:100%;min-width:0;height:150px;padding:6px;border:1px solid var(--border);border-radius:12px;background:#fff;color:var(--text);text-align:left;cursor:pointer;box-shadow:var(--shadow-sm);overflow:hidden;display:flex;flex-direction:column;transition:transform .12s ease,border-color .12s ease,box-shadow .12s ease,background-color .12s ease}.slide-card:hover{transform:translateY(-1px);border-color:#93c5fd;box-shadow:var(--shadow-md)}.slide-card.is-selected{border-color:var(--accent);background:#f8fbff;box-shadow:0 0 0 2px var(--accent-soft),var(--shadow-sm)}.slide-thumb{width:100%;height:92px;flex:0 0 92px;border-radius:8px;background:linear-gradient(135deg,#f1f5f9,#e2e8f0);color:var(--text-muted);display:flex;align-items:center;justify-content:center;overflow:hidden;font-size:12px;font-weight:600}.slide-thumb img{width:100%;height:100%;object-fit:contain;display:block;background:#fff}.slide-meta{margin-top:6px;padding:0 2px;font-size:11px;line-height:1.25;color:#475569;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.slides-actions{display:flex;gap:6px;flex-shrink:0}.insert-all-button,.insert-selected-button{border:1px solid transparent;border-radius:8px;padding:6px 9px;font-size:12px;font-weight:650;cursor:pointer;transition:background-color .12s ease,border-color .12s ease,color .12s ease,opacity .12s ease}.insert-all-button{background:#fff;color:var(--text);border-color:var(--border-strong)}.insert-all-button:hover:not(:disabled){background:#f1f5f9}.insert-selected-button{background:var(--accent);color:#fff}.insert-selected-button:hover:not(:disabled){background:var(--accent-hover)}.insert-all-button:disabled,.insert-selected-button:disabled{opacity:.45;cursor:not-allowed}.slide-card{position:relative}.slide-check{position:absolute;top:8px;right:8px;z-index:3;width:24px;height:24px;pointer-events:none}.slide-check-input{display:none}.slide-check-visual{width:24px;height:24px;border-radius:999px;border:2px solid #cbd5e1;background:#ffffffeb;color:transparent;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;box-shadow:0 2px 6px #0f172a29;transition:background-color .12s ease,border-color .12s ease,color .12s ease,transform .12s ease}.slide-card:hover .slide-check-visual{border-color:#93c5fd}.slide-card.is-selected{border-color:var(--accent);background:#eff6ff;box-shadow:0 0 0 2px #2563eb33,var(--shadow-sm)}.slide-card.is-selected .slide-check-visual{background:var(--accent);border-color:var(--accent);color:#fff;transform:scale(1.04)}.slide-card.is-selected .slide-thumb{box-shadow:inset 0 0 0 2px #2563eb59}