.toc-container{--toc-panel-bg: var(--color-bg);--toc-row-hover: color-mix(in srgb, var(--color-accent) 12%, transparent);--toc-row-active: color-mix(in srgb, var(--color-accent) 10%, transparent);--toc-guide: color-mix(in srgb, var(--color-border) 72%, transparent);--toc-footer-bg: color-mix(in srgb, var(--color-bg) 92%, var(--color-surface) 8%);--toc-level-track-bg: color-mix(in srgb, var(--color-surface) 72%, var(--color-bg) 28%);--toc-level-track-border: color-mix(in srgb, var(--color-border) 75%, transparent);--toc-level-active-bg: var(--color-bg);--toc-level-shadow: 0 1px 2px rgba(0, 0, 0, .22), 0 0 0 1px color-mix(in srgb, var(--color-border) 78%, transparent);display:flex;flex-direction:column;height:100%;overflow:hidden;background:var(--toc-panel-bg);font-size:.88rem}.toc-empty{padding:.75rem 1rem;font-size:.82rem;color:var(--color-text-muted)}.toc-level-bar{display:block;padding:.75rem .75rem .65rem;border-top:1px solid color-mix(in srgb,var(--color-border) 58%,transparent);background:var(--toc-footer-bg);flex-shrink:0}.toc-level-label{margin:0 0 .35rem;color:var(--color-text-muted);font-size:.62rem;font-weight:600;letter-spacing:.08em;line-height:1;text-transform:uppercase}.toc-level-controls{display:flex;align-items:center;gap:0;padding:3px;min-height:34px;background:var(--toc-level-track-bg);border:1px solid var(--toc-level-track-border);border-radius:10px}.toc-level-btn{display:inline-flex;align-items:center;justify-content:center;flex:1;min-width:0;height:27px;padding:0 .25rem;background:transparent;border:0;border-radius:7px;color:var(--color-text-muted);font-size:.7rem;font-weight:500;font-family:var(--font-sans);cursor:pointer;letter-spacing:0;line-height:1;transition:color .15s ease,background .15s ease,box-shadow .15s ease}.toc-level-btn:hover{color:var(--color-text)}.toc-level-btn--active{background:var(--toc-level-active-bg);box-shadow:var(--toc-level-shadow);color:var(--color-text)}.toc-root{flex:1;overflow-y:auto;padding:.5rem .45rem .65rem}.toc-row{position:relative;display:flex;align-items:center;gap:6px;min-height:30px;margin:0 .1rem;padding:0 .55rem 0 calc(.6rem + (var(--toc-depth, 0) * 1.12rem));border-radius:5px;cursor:pointer;font-size:.82rem;font-family:var(--font-sans);color:var(--color-text);font-weight:500;line-height:1.2;user-select:none;transition:background .12s ease,color .12s ease}.toc-row:before{content:"";position:absolute;left:3px;top:6px;bottom:6px;width:2px;border-radius:999px;background:transparent;transition:background .12s ease}.toc-row--level-2,.toc-row--level-3,.toc-row--level-4,.toc-row--level-5,.toc-row--level-6{color:var(--color-text-muted);font-weight:400}.toc-row:hover{background:var(--toc-row-hover)}.toc-row--active{background:var(--toc-row-active);color:var(--color-text)}.toc-row--selected{background:color-mix(in srgb,var(--color-accent) 16%,transparent);color:var(--color-text)}.toc-row--active:before{background:var(--color-accent)}.toc-row--overdepth .toc-label{color:var(--color-warning-text, #f59e0b)}.toc-label{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.toc-chevron{display:inline-flex;align-items:center;justify-content:center;width:14px;height:18px;flex-shrink:0;font-size:.48rem;color:var(--color-text-muted);transition:transform .15s ease;border-radius:3px}.toc-chevron:not(.toc-chevron-leaf){cursor:pointer}.toc-chevron:not(.toc-chevron-leaf):hover{color:var(--color-text);background:color-mix(in srgb,var(--color-border) 55%,transparent)}.toc-chevron-expanded{transform:rotate(90deg)}.toc-chevron-leaf{visibility:hidden}.toc-children{overflow:hidden;position:relative}.toc-item--expanded>.toc-children:before{content:"";position:absolute;top:0;bottom:2px;left:calc(.6rem + var(--toc-handle-offset, 0px) + 7px + (var(--toc-guide-depth, 0) * 1.12rem));width:1px;background:var(--toc-guide);pointer-events:none}.toc-children-collapsed{display:none}.toc-drag-handle{display:inline-flex;align-items:center;justify-content:center;width:16px;height:20px;flex-shrink:0;color:var(--color-text-muted);cursor:grab;opacity:0;border-radius:3px;transition:opacity .12s ease,color .12s ease,background .12s ease}.toc-row:hover .toc-drag-handle,.toc-row--selected .toc-drag-handle{opacity:1}.toc-drag-handle:hover{color:var(--color-text);background:color-mix(in srgb,var(--color-border) 55%,transparent)}.toc-drag-handle:active{cursor:grabbing}.toc-dragging{opacity:.4}.toc-drop-before{box-shadow:0 -2px 0 0 var(--color-accent)}.toc-drop-after{box-shadow:0 2px 0 0 var(--color-accent)}.toc-drop-child{background:color-mix(in srgb,var(--color-accent) 15%,transparent);box-shadow:inset 3px 0 0 0 var(--color-accent);border-radius:4px}[data-theme=light] .toc-container{--toc-panel-bg: #ffffff;--toc-row-hover: #fbf1f3;--toc-row-active: #fbf1f3;--toc-guide: #e8e2e5;--toc-footer-bg: #fbfaf9;--toc-level-track-bg: #f4f2f0;--toc-level-track-border: #ece8e5;--toc-level-active-bg: #ffffff;--toc-level-shadow: 0 1px 2px rgba(30, 24, 20, .08), 0 0 0 1px #e3ded9}.backlinks-list{padding:.5rem}.backlink-item{padding:.35rem .5rem;font-size:.8rem;color:var(--color-accent);cursor:pointer;border-radius:var(--radius)}.backlink-item:hover{background:var(--color-surface)}.backlink-group{margin-bottom:.5rem}.backlink-header{display:flex;align-items:center;gap:.25rem;padding:.25rem .5rem;border-radius:var(--radius);cursor:pointer;user-select:none}.backlink-header:hover{background:var(--color-surface)}.backlink-toggle{background:none;border:none;color:var(--color-text-muted);font-size:.75rem;cursor:pointer;padding:0 .15rem;line-height:1}.backlink-title{font-size:.8rem;color:var(--color-accent);flex:1}.backlink-details{padding:.15rem 0 .25rem 1.5rem}.backlink-snippet{padding:.25rem .5rem;font-size:.75rem;color:var(--color-text-muted);cursor:pointer;border-radius:var(--radius);white-space:pre-wrap;word-break:break-word}.backlink-snippet:hover{background:var(--color-surface);color:var(--color-text)}.backlink-snippet-empty{font-style:italic;cursor:default}.backlink-snippet-empty:hover{background:transparent;color:var(--color-text-muted)}.backlinks-empty{padding:.75rem;font-size:.8rem;color:var(--color-text-muted);font-style:italic}.backlinks-loading{padding:.75rem;font-size:.8rem;color:var(--color-text-muted)}.tabbed-panel-tabs{display:flex;border-bottom:1px solid var(--color-border);flex-shrink:0}.tabbed-panel-tab{flex:1;padding:.55rem .35rem;background:none;border:none;border-bottom:2px solid transparent;color:var(--color-text-muted);font-size:.78rem;font-family:var(--font-sans);cursor:pointer;white-space:nowrap;transition:color .15s ease,border-color .15s ease}.tabbed-panel-tab:hover{color:var(--color-text)}.tabbed-panel-tab--active{color:var(--color-accent);border-bottom-color:var(--color-accent);font-weight:500}.tabbed-panel-content{flex:1;overflow-y:auto;min-height:0}