:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#101715;--panel:#17211e;--panel-raised:#1e2b26;--border:#2a3932;--text:#e4e9df;--muted:#94a79a;--accent:#b7d796}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:Arial,Helvetica,sans-serif;font-size:14px}button,input,textarea,select{font:inherit}button{cursor:pointer;border:1px solid var(--border);color:var(--text);background:#213028;border-radius:7px;padding:8px 11px;transition:background .15s,border-color .15s}button:hover{background:#304339;border-color:#60735e}button:disabled{opacity:.35;cursor:default}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}input,textarea,select{border:1px solid var(--border);color:var(--text);background:#101a15;border-radius:6px;max-width:100%;padding:8px}textarea{resize:vertical}input[type=range]{accent-color:var(--accent);width:100%;padding:0}input[type=color]{width:52px;height:34px;padding:3px}input[type=checkbox]{accent-color:var(--accent)}h1,h2,h3,p{margin-top:0}h2{margin-bottom:0;font-size:16px;font-weight:600}h3{color:var(--accent);text-transform:uppercase;letter-spacing:.08em;margin:22px 0 12px;font-size:13px}p{line-height:1.65}button.primary{background:var(--accent);color:#1a2b16;border-color:var(--accent);font-weight:700}button.primary:hover{background:#c6e6a4}.muted,.hint{color:var(--muted)}.hint{margin:12px 0;font-size:12px;line-height:1.6}.eyebrow{letter-spacing:.15em;color:var(--muted);font-size:10px}.small-button{padding:5px 8px;font-size:11px}.icon-button{background:0 0;border-color:#0000;padding:2px 6px;font-size:20px}.button-row{flex-wrap:wrap;gap:6px;display:flex}.app{min-height:100vh;padding:0 30px}.app-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:20px;min-height:100px;margin-bottom:26px;display:flex}.brand{align-items:center;gap:14px;display:flex}.brand-mark{color:var(--accent);font-size:42px;line-height:1}.brand h1{letter-spacing:-.7px;margin:0 0 5px;font-family:Georgia,serif;font-size:27px}.brand span:not(.brand-mark):not(.version){color:var(--muted);letter-spacing:.04em;font-size:11px}.version{color:var(--accent);border:1px solid #4d6146;border-radius:5px;align-self:flex-start;margin-top:7px;padding:4px 6px;font-size:10px}.header-actions{align-items:center;gap:20px;display:flex}.engine-health{background:0 0;align-items:center;gap:8px;font-size:11px;display:flex}.engine-health span{background:#e3b359;border-radius:50%;width:6px;height:6px}.engine-health.online span{background:#a8d391}.engine-health.offline span{background:#fb7185}.save-status{color:var(--muted);font-size:11px}.notice{overflow-wrap:anywhere;background:#28392b;border:1px solid #52664b;border-radius:8px;justify-content:space-between;align-items:center;gap:10px;margin-bottom:16px;padding:10px 15px;display:flex}.notice button{background:0 0;border:0;padding:0 4px;font-size:20px}.workspace{grid-template-columns:minmax(240px,.7fr) minmax(360px,1.5fr) minmax(340px,1fr);align-items:start;gap:24px;max-width:1900px;margin:auto;display:grid}.panel{border:1px solid var(--border);background:var(--panel);border-radius:11px}.panel-top{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:12px;padding:18px;display:flex}.panel-top h2{margin-top:4px}.tabs{gap:4px;padding:12px 12px 0;display:flex}.tabs button{background:0 0;border:0;border-bottom:2px solid #0000;border-radius:0;flex:1;padding:9px 4px;font-size:11px}.tabs button.active{border-bottom-color:var(--accent);color:var(--accent)}.study-content{max-height:78vh;padding:0 14px 18px;overflow:auto}.move-tree{padding:5px 0 15px}.tree-node{min-height:34px;padding-left:var(--indent);border-radius:5px;align-items:center;gap:3px;display:flex}.tree-node.selected{box-shadow:inset 3px 0 var(--accent);background:#344731}.tree-fold{background:0 0;border:0;width:19px;padding:2px 4px;font-size:13px}.tree-move{text-align:left;background:0 0;border:0;flex:1;padding:5px 3px;font-size:12px}.tree-eval{color:var(--accent);font-family:monospace;font-size:10px}.tree-menu{position:relative}.tree-menu summary{cursor:pointer;padding:4px;list-style:none}.tree-menu[open]>div{z-index:30;background:#202f25;border:1px solid #4b6150;border-radius:7px;width:175px;padding:5px;position:absolute;top:26px;right:0;box-shadow:0 8px 28px #0008}.tree-menu button{text-align:left;background:0 0;border:0;width:100%;padding:9px;font-size:11px;display:block}.danger{color:#fb7185}.tree-comment{color:#a6b59e;padding-left:var(--indent);overflow-wrap:anywhere;margin:2px 5px 6px 28px;font-size:11px}.comment-editor,.annotation-select{color:var(--muted);margin-top:12px;font-size:12px;display:block}.comment-editor textarea{width:100%;height:85px;margin-top:8px;display:block}.annotation-select select{width:100%;margin-top:8px;display:block}.board-column{flex-direction:column;align-items:center;min-width:0;display:flex}.board-caption{justify-content:space-between;align-items:center;gap:12px;width:100%;min-height:68px;padding:3px 0 18px;display:flex}.board-caption h2{margin-top:7px;font-family:Georgia,serif;font-size:20px;font-weight:400}.eco{color:var(--accent);background:#263524;border-radius:5px;padding:6px 8px;font-family:monospace;font-size:12px}.board-shell{aspect-ratio:1;border:5px solid #344739;border-radius:8px;max-width:100%;position:relative;box-shadow:0 16px 55px #0005}.arrow-overlay{pointer-events:none;z-index:6;width:100%;height:100%;position:absolute;inset:0}.resize-handle{z-index:10;touch-action:none;background:#243f28;border:1px solid #7a936c;border-radius:3px;width:13px;height:13px;padding:0;position:absolute}.resize-handle.nw{cursor:nwse-resize;top:-7px;left:-7px}.resize-handle.ne{cursor:nesw-resize;top:-7px;right:-7px}.resize-handle.sw{cursor:nesw-resize;bottom:-7px;left:-7px}.resize-handle.se{cursor:nwse-resize;bottom:-7px;right:-7px}.board-toolbar{justify-content:space-between;gap:10px;width:100%;margin:18px 0;display:flex}.board-toolbar button{padding:7px 12px}.explanation{width:100%;margin-top:2px;padding:18px}.section-heading{justify-content:space-between;align-items:center;gap:8px;display:flex}.section-heading .muted{font-size:10px}.explanation>p{color:#d2ddcb;margin-top:15px;margin-bottom:0;font-size:13px}.explanation .hint{color:var(--muted);font-size:11px}.explanation details{color:var(--muted);margin-top:14px;font-size:11px}summary{cursor:pointer}.explanation li{margin-bottom:6px}.fen{overflow-wrap:anywhere;margin-top:10px;font-size:10px;display:block}.playback-strip{background:#32452c;border:1px solid #5f7650;border-radius:7px;align-items:center;gap:10px;width:100%;margin-bottom:12px;padding:9px 12px;font-size:12px;display:flex}.playback-strip button{margin-left:auto;padding:5px 8px;font-size:11px}.pulse{background:var(--accent);border-radius:50%;width:6px;height:6px;animation:1s infinite pulse}@keyframes pulse{50%{opacity:.3}}.analysis-column{min-width:0;padding-bottom:14px}.analysis-summary{align-items:center;gap:14px;padding:20px 18px 12px;display:flex}.analysis-summary>span{color:var(--accent);min-width:85px;font-family:Georgia,serif;font-size:35px}.analysis-summary strong{font-size:12px;font-weight:400;display:block}.analysis-summary small{color:var(--muted);margin-top:6px;font-size:10px;display:block}.pv-panel{padding:12px 15px}.pv-panel>.hint{margin-top:8px;font-size:11px}.pv-row{border:1px solid var(--border);border-left:3px solid var(--line-color);background:#121c17;border-radius:7px;margin:12px 0;padding:8px 8px 11px;position:relative}.pv-row.highlighted{border-color:var(--line-color);background:#26312a}.pv-header{align-items:center;gap:7px;display:flex}.pv-rank{color:var(--line-color);border-color:color-mix(in srgb,var(--line-color) 40%,transparent);background:color-mix(in srgb,var(--line-color) 10%,transparent);padding:5px 8px;font-size:12px;font-weight:700}.pv-score{color:var(--line-color);font-family:monospace;font-size:14px}.depth{color:var(--muted);font-size:10px}.pv-header>.small-button{margin-left:auto;padding:4px;font-size:10px}.pv-moves{flex-wrap:wrap;gap:2px;margin-top:8px;display:flex}.ply-wrap{display:inline-flex;position:relative}.ply{white-space:nowrap;background:0 0;border:0;padding:5px 4px;font-family:monospace;font-size:12px}.move-number{color:#6e8675;margin-right:2px;font-size:9px}.ply-wrap:hover>.ply,.ply-wrap.pinned>.ply,.ply-wrap:focus-within>.ply{color:var(--line-color);background:#334238}.ply-tooltip{z-index:40;white-space:normal;background:#253428;border:1px solid #61755c;border-radius:8px;width:235px;max-width:85vw;padding:11px;display:none;position:absolute;top:calc(100% + 2px);left:-25px;box-shadow:0 12px 30px #0009}.ply-tooltip:before{content:"";height:8px;position:absolute;top:-7px;left:0;right:0}.ply-wrap.tooltip-active>.ply-tooltip{flex-direction:column;gap:10px;display:flex}.tooltip-title{color:var(--line-color);font-size:11px;font-weight:600}.tooltip-actions{gap:5px;display:flex}.tooltip-actions button{background:#34482f;border-color:#53664b;width:35px;height:32px;padding:3px}.tooltip-explanation{color:#cedac5;font-size:11px;line-height:1.55}.arrow-controls{border-bottom:1px solid var(--border);grid-template-columns:1fr 1fr;gap:12px;margin-bottom:8px;padding:12px 3px 7px;font-size:10px;display:grid}.arrow-controls label{color:var(--muted);flex-direction:column;gap:6px;display:flex}.arrow-controls output{color:var(--line-color)}.arrow-controls input[type=number]{width:70px;font-size:11px}.arrow-controls .check{flex-direction:row;align-items:center}.empty-state{text-align:center;color:var(--muted);padding:22px 10px;font-size:12px}.empty-icon{color:#6a8d69;font-size:35px}.empty-state p{margin:12px 0}.legend{color:var(--muted);flex-wrap:wrap;justify-content:center;gap:12px;padding:15px 5px 5px;font-size:10px;display:flex}.legend span{align-items:center;gap:5px;display:flex}.legend i{border-radius:50%;width:6px;height:6px}.queue-strip{background:#33442b;border-radius:7px;align-items:center;gap:8px;margin:8px 15px;padding:10px;font-size:11px;display:flex}.queue-strip button{margin-left:auto;font-size:10px}.spiral-panel{border-top:1px solid var(--border);padding:15px 0 0}.spiral-panel>.section-heading,.spiral-panel>.hint{margin:0 15px 12px}.spiral-nodes{flex-wrap:wrap;gap:5px;padding:0 15px 12px;display:flex}.spiral-nodes button{padding:5px 8px;font-size:10px}.spiral-nodes button.active{border-color:var(--accent)}.spiral-nodes span{color:var(--muted);margin-left:3px}.settings-panel>label{color:#bbc8b4;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;font-size:12px;display:flex}.settings-panel input[type=number]{width:85px}.settings-panel select{max-width:160px;font-size:11px}.settings-panel>.check{justify-content:flex-start}.pgn-panel>label{color:var(--muted);margin:14px 0;font-size:12px;display:block}.pgn-panel textarea,.pgn-panel input:not([type=file]){width:100%;margin-top:8px;display:block}.pgn-editor{height:260px;font-family:monospace;font-size:11px;line-height:1.6}.pgn-panel .button-row button{font-size:11px}.file-label input{width:100%;margin-top:8px;padding:5px;font-size:10px;display:block}.stale-analysis{padding:0 15px}.history-select{color:var(--muted);margin:5px 15px;font-size:11px;display:block}.history-select select{width:100%;margin-top:6px;font-size:10px;display:block}.line-plan{color:#a9bda4;border-top:1px solid #263a2c;margin:8px 0 0;padding:8px 4px 0;font-size:11px;line-height:1.6}.line-plan strong{color:#becfb5;font-weight:400}.layout-left .workspace{grid-template-columns:minmax(360px,1.5fr) minmax(240px,.7fr) minmax(340px,1fr)}.layout-left .board-column{grid-area:1/1}.layout-left .study-panel{grid-area:1/2}.layout-right .workspace{grid-template-columns:minmax(240px,.7fr) minmax(340px,1fr) minmax(360px,1.5fr)}.layout-right .board-column{grid-area:1/3}.layout-right .analysis-column{grid-area:1/2}.app footer{border-top:1px solid var(--border);color:#768c7b;justify-content:space-between;gap:15px;max-width:1900px;margin:28px auto 0;padding:20px 0;font-size:10px;display:flex}.loading{min-height:100vh;color:var(--muted);flex-direction:column;justify-content:center;align-items:center;display:flex}.loading p{margin-top:20px}.modal-backdrop{z-index:100;background:#000a;place-items:center;display:grid;position:fixed;inset:0}.promotion-modal{background:var(--panel);border:1px solid #6b845b;border-radius:12px;max-width:95vw;padding:25px}.promotion-modal>div{gap:10px;margin:20px 0;display:flex}@media (min-width:1600px){.workspace{grid-template-columns:290px minmax(450px,1fr) 430px}.layout-left .workspace{grid-template-columns:minmax(450px,1fr) 290px 430px}.layout-right .workspace{grid-template-columns:290px 430px minmax(450px,1fr)}}@media (max-width:1200px){.app{padding:0 18px}.workspace,.layout-left .workspace,.layout-right .workspace{grid-template-columns:minmax(340px,1fr) minmax(330px,.9fr);gap:20px}.workspace .board-column{grid-area:1/1}.workspace .analysis-column{grid-area:1/2/span 2}.workspace .study-panel{grid-area:2/1}.study-content{max-height:500px}.board-caption h2{font-size:18px}.save-status{display:none}}@media (max-width:760px){.app{padding:0 12px}.app-header{gap:10px;min-height:85px;margin-bottom:18px}.brand{gap:8px}.brand h1{font-size:23px}.brand-mark{font-size:34px}.brand span:not(.brand-mark):not(.version){font-size:9px}.engine-health{padding:6px;font-size:9px}.workspace,.layout-left .workspace,.layout-right .workspace{flex-direction:column;gap:20px;display:flex}.workspace>*{width:100%}.workspace .board-column{order:0}.workspace .analysis-column{order:1}.workspace .study-panel{order:2}.board-shell{max-width:calc(100vw - 30px)}.board-caption{min-height:55px}.board-toolbar{margin-top:14px}.app footer{flex-direction:column}.ply-tooltip{left:-50px}.pv-moves{gap:4px}.pv-header .depth{margin-left:auto}.pv-header .small-button{margin-left:0}.study-content{max-height:none}.arrow-controls{grid-template-columns:1fr 1fr}.promotion-modal>div{flex-wrap:wrap}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}}.tree-start{margin:5px 0 10px}.tree-controls{flex-wrap:wrap;align-items:center;gap:6px;margin:8px 0;display:flex}.tree-controls select,.tree-controls [role=status]{font-size:11px}.tree-icon-button{flex-shrink:0;place-items:center;width:30px;height:30px;padding:4px;display:inline-grid}.tree-icon-button[aria-pressed=true]{color:var(--accent);border-color:var(--accent);background:#344731}.tree-control-divider{background:var(--border);width:1px;height:20px}.tree-controls select{height:30px;padding:5px}.tree-game-toggle{text-align:left;width:100%;margin-bottom:6px;font-size:12px}.tree-game-toggle span{color:var(--muted);font-size:11px}.tree-game-heading{color:var(--accent);border-bottom:1px solid var(--border);margin-bottom:6px;padding:8px 4px;font-size:12px}.tree-commentary{background:#1d2b2233;border-left:2px solid #52664b;margin:6px 6px 12px 28px;padding:8px 10px;line-height:1.7}.game-summary{padding:16px;overflow:auto}.game-summary table{border-collapse:collapse;width:100%;font-size:12px}.game-summary th,.game-summary td{border-bottom:1px solid var(--border);text-align:left;padding:8px 5px}.game-summary details{margin-top:16px}.summary-symbol{text-align:center;min-width:20px;font:700 13px monospace;display:inline-block}.summary-warning{color:#fbbf24;background:#5c421933}.summary-warning p{margin:0;font-size:12px}.review-move{text-align:left;flex-wrap:wrap;align-items:center;gap:6px;width:100%;margin:6px 0;font-size:12px;display:flex}.review-move>span:last-child{width:100%;color:var(--muted);line-height:1.5}.evaluation-graph{width:100%;margin-bottom:12px}.evaluation-graph-toggle{text-align:left;background:0 0;border:0;width:100%}.evaluation-graph svg{width:100%;height:auto;display:block}.graph-zero{stroke:var(--border);stroke-dasharray:4 3}.graph-line{stroke:var(--accent);stroke-width:2px}.graph-selection{stroke:#ffffff70;stroke-dasharray:3 3}.graph-axis{fill:var(--muted);font-size:10px}.graph-marker{fill:var(--text);font:700 9px monospace}.evaluation-graph g[role=button]{cursor:pointer}.evaluation-graph g[role=button]:focus-visible{outline:none}.evaluation-graph g[role=button]:focus-visible circle{stroke:#fff;stroke-width:3px}.graph-detail{min-height:20px;margin:2px 12px;font-size:12px}.evaluation-graph .hint{margin:6px 12px 12px;font-size:10px}.history-timeline{border-block:1px solid var(--border);background:#101a15;width:100%}.history-track{background:#18231c}.evaluation-graph .history-track{height:28px}.evaluation-graph .history-plot{height:136px}.evaluation-graph g[role=button]:focus-visible rect{stroke:#fff;stroke-width:2px}.history-track-label{fill:var(--muted);font-size:10px}.history-track-line{stroke:#344731;stroke-dasharray:1 8}.history-move-guide{fill:none;stroke-width:1px;stroke-dasharray:1 4;stroke-linecap:round;opacity:.2;pointer-events:none}.history-move-guide.active{opacity:.85}.history-scale-line{stroke:#607367;stroke-width:1px;stroke-dasharray:2 4;opacity:.55;pointer-events:none}.history-scale-line.zero{stroke:#a6b59e;stroke-dasharray:none;opacity:.75}.history-scale-line.mate{stroke:#e879f9}.history-scale-label{fill:var(--muted);pointer-events:none;font:9px monospace}.history-marker-text{font:700 10px monospace}.history-plot{background:#101a15}.history-side-background{opacity:.35;pointer-events:none}.history-key{line-height:1.8}.move-quality.brilliant{color:#2dd4bf}.clear-annotations-modal{max-width:min(460px,100vw - 32px);color:var(--text);background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:24px}.clear-annotations-modal::backdrop{background:#000a}.clear-annotations-modal h2{margin-bottom:16px}.clear-annotations-modal>div{flex-wrap:wrap;justify-content:flex-end;gap:10px;display:flex}.move-tree{scrollbar-gutter:stable;max-height:min(55vh,520px);overflow:auto}.score-label-controls{color:var(--muted);margin:8px 0;font-size:11px}.score-label-controls>div{padding:8px 0}.score-label-controls label{align-items:center;gap:3px;margin-right:9px;display:inline-flex}.tooltip-actions{flex-wrap:wrap}.tree-turn{grid-template-columns:27px minmax(0,1fr) minmax(0,1fr);align-items:center;gap:3px;display:grid}.tree-number{color:var(--muted);text-align:right;padding-right:4px;font-size:11px}.tree-node{gap:1px;min-width:0;min-height:30px;padding:0 3px}.tree-node.on-path{background:#25372c}.tree-move{white-space:nowrap;min-width:0;padding:6px 2px;font-weight:600}.tree-eval{font-size:9px}.tree-menu summary{padding:2px;font-size:12px}.tree-variation{background:#101a154d;border-left:2px solid #4c6150;gap:2px;margin:4px 0 7px 7px;padding:4px 0 4px 2px;display:flex}.tree-variation>.tree-fold{flex:0 0 15px;align-self:flex-start;width:15px;margin-top:5px}.tree-variation-content{flex:1;min-width:0}.tree-variation .tree-turn{grid-template-columns:23px minmax(0,1fr) minmax(0,1fr)}.tree-variation .tree-move{font-weight:400}.tree-collapsed{color:var(--muted);background:0 0;border:0;padding:5px 3px;font-size:12px}.tree-comment{margin:3px 6px 6px 28px;padding:0}.app-header{gap:10px;min-height:36px;margin-bottom:10px}.brand{gap:8px}.brand h1{letter-spacing:-.2px;margin:0;font-size:16px}.brand-mark{font-size:23px}.brand .version{align-self:center;margin:0;padding:2px 4px;font-size:8px}.header-actions{gap:10px}.board-caption{min-height:0;padding:9px 0 0}.board-caption h2{margin:0;font-size:13px}.board-caption .eco{padding:3px 6px;font-size:10px}.board-toolbar{margin:9px 0 12px}.engine-crank{width:29px;height:29px;color:var(--accent);background:0 0;border:0;padding:3px}.engine-crank svg{fill:none;stroke:currentColor;stroke-width:1.6px;width:100%;height:100%}.crank-ring{opacity:.3;stroke-dasharray:2 3}.crank-arm{transform-origin:12px 12px}.engine-crank.rotating .crank-arm{animation:1.6s linear infinite crank-turn}.engine-crank.offline{color:#fb7185}.engine-crank.checking{color:#fbbf24}@keyframes crank-turn{to{transform:rotate(360deg)}}.engine-line-title{align-items:center;gap:6px;display:flex}.arrow-visibility{color:var(--line-color,var(--accent))}.arrow-visibility.arrows-hidden{opacity:.4;text-decoration:line-through}.arrow-settings{color:var(--muted);padding:2px 3px;font-size:14px}@media (max-width:760px){.app-header{min-height:36px;margin-bottom:10px}.brand h1{font-size:15px}.brand-mark{font-size:23px}.board-caption{min-height:0}.board-caption h2{font-size:13px}}@media (prefers-reduced-motion:reduce){.engine-crank.rotating .crank-arm{animation:none}}.app{padding:0 44px}.dock-workspace{grid-template-columns:0 minmax(0,1fr) 0;align-items:start;gap:0 16px;display:grid}.dock-workspace.has-left{grid-template-columns:var(--left-panel-width,minmax(260px, 300px)) minmax(0, 1fr) 0}.dock-workspace.has-right{grid-template-columns:0 minmax(0, 1fr) var(--right-panel-width,minmax(300px, 360px))}.dock-workspace.has-left.has-right{grid-template-columns:var(--left-panel-width,minmax(260px, 300px)) minmax(0, 1fr) var(--right-panel-width,minmax(300px, 360px))}.dock-board-slot{grid-column:2;min-width:0}.dock-left{grid-area:1/1}.dock-right{grid-area:1/3}.dock-pane{background:var(--panel);border:1px solid var(--border);border-radius:9px;min-width:0;max-height:calc(100dvh - 48px);overflow:auto}.dock-pane-header{z-index:25;background:var(--panel);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:6px 10px;font-size:12px;display:flex;position:sticky;top:0}.dock-pane-header>div{display:flex}.dock-pane .panel{border:0;border-radius:0}.dock-pane .study-content{max-height:none;overflow:visible}.dock-pane .panel-top{padding:12px}.dock-pane .pv-header{flex-wrap:wrap}.dock-pane .pv-panel>.section-heading{flex-wrap:wrap;align-items:flex-start;gap:6px}.dock-rail{z-index:60;flex-direction:column;gap:8px;width:36px;display:flex;position:fixed;top:46px;bottom:10px}.rail-left{left:0}.rail-right{right:0}.dock-tab{touch-action:none;-webkit-user-select:none;user-select:none;border-radius:0 8px 8px 0;width:36px;min-height:45px;padding:6px 2px;position:relative}.rail-right .dock-tab{border-radius:8px 0 0 8px}.dock-tab>span:first-child{font-size:22px}.dock-tab-label{font-size:8px;display:block}.dock-tab.active{border-color:var(--accent);color:var(--accent);background:#344731}.dock-tab small{background:#3b5838;border-radius:6px;padding:1px 3px;font-size:9px;position:absolute;top:0;right:1px}.board-and-eval{align-items:stretch;gap:8px;max-width:100%;display:flex}.board-toolbar{flex-wrap:wrap}.eval-bar{background:#252525;border:1px solid #62705f;border-radius:4px;flex:0 0 22px;width:22px;position:relative;overflow:hidden}.eval-white{background:#e8e8df;transition:height .25s;position:absolute;bottom:0;left:0;right:0}.eval-bar.black .eval-white{top:0;bottom:auto}.eval-score{color:#fff;white-space:nowrap;background:#54634c;border-radius:3px;padding:2px 4px;font:700 10px monospace;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)rotate(-90deg)}.cp-button{color:var(--accent);padding:3px 5px;font-size:10px;font-weight:700}.pv-score-controls{border:1px solid var(--border);border-radius:5px;grid-column:1/-1;margin:0;padding:8px}.pv-score-controls label{margin:5px 8px 7px 0;display:inline-flex}.logs-panel{padding:12px}.logs-panel ol{padding:0;list-style:none}.logs-panel li{border-bottom:1px solid var(--border);padding:10px 0}.logs-panel time{color:var(--muted);font-size:10px}.logs-panel p{overflow-wrap:anywhere;margin:5px 0;font-size:12px}.dock-pane .ply-tooltip{z-index:100}@media (max-width:1000px){.app{padding:0 42px}.dock-workspace,.dock-workspace.has-left,.dock-workspace.has-right,.dock-workspace.has-left.has-right{grid-template-columns:minmax(0,1fr);gap:16px}.dock-board-slot{grid-area:1/1}.dock-left{grid-area:2/1}.dock-right{grid-area:3/1}.dock-pane{max-height:70dvh}.board-shell{max-width:100%}}.drawing-layer{pointer-events:none;z-index:5;width:100%;height:100%;position:absolute;inset:0}.drawing-layer.drawing-active{pointer-events:auto;touch-action:none;cursor:crosshair}.board-shell{position:relative}.piece-move-count-overlay{pointer-events:none;z-index:6;width:100%;height:100%;position:absolute;inset:0}.piece-move-count-overlay rect{fill:#101715;fill-opacity:.9;stroke:#e8e0ce;stroke-width:1px}.piece-move-count-overlay text{fill:#fff;font-family:Arial,Helvetica,sans-serif;font-size:20px;font-weight:700}.quick-piece-count-row{justify-content:flex-end;margin-top:4px;display:flex}.quick-piece-count-row button{width:28px;min-height:26px;padding:2px;font-weight:700}.capture-square-overlay{pointer-events:none;z-index:7;width:100%;height:100%;position:absolute;inset:0}.capture-square-overlay rect{fill:#82b4e826;stroke:#82b4e8;stroke-width:5px}.capture-square-overlay [data-testid=capture-arrow] path{stroke-linecap:round}.captured-pieces-panel{min-width:0;padding:10px}.captured-column-headings,.captured-comparison-row{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;display:grid}.captured-column-headings{border-bottom:1px solid var(--border);padding:8px 0;font-size:13px}.captured-column-headings small{color:var(--muted);margin-top:3px;font-size:11px;font-weight:400;display:block}.captured-type-group h3{color:var(--muted);margin:12px 0 6px;font-size:12px}.captured-side{flex-direction:column;gap:6px;min-width:0;display:flex}.captured-piece-card{text-align:left;overflow-wrap:anywhere;width:100%;padding:7px;font-size:11px;display:block}.captured-piece-card[aria-pressed=true]{background:#82b4e814;border-color:#82b4e8}.captured-piece-heading{flex-wrap:wrap;align-items:center;gap:5px;display:flex}.captured-piece-heading img{width:32px;height:32px}.captured-piece-heading strong{font-size:14px}.captured-piece-heading small{color:var(--muted);font-size:9px}.captured-metrics{flex-direction:column;gap:3px;margin:5px 0;display:flex}.captured-metrics>span{justify-content:space-between;gap:4px;display:flex}.captured-metrics .captured-placement{display:block}.captured-placement b{color:var(--text);margin-top:2px;font-weight:500;display:block}.captured-time{color:var(--muted);border-top:1px solid var(--border);padding-top:5px;font-size:10px;line-height:1.5;display:block}.captured-none{text-align:center;color:var(--muted);padding:15px;display:block}.captured-help{color:var(--muted);margin-top:14px;font-size:11px;line-height:1.5}.captured-restore{width:100%;margin-bottom:8px}.eval-bar{cursor:default}.material-bars{flex:0 0 22px;order:0;display:flex}.material-bar{background:#101715;border:1px solid #62705f;border-radius:4px;width:22px;position:relative;overflow:hidden}.material-share.w{background:#e8e8df}.material-share.b{background:#252525}.material-count{color:#fff;background:#54634c;border-radius:3px;padding:2px;font:700 9px monospace;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.material-share{transition:height .25s;position:relative}.material-center-line{border-top:1px dotted #71856e;position:absolute;top:50%;left:0;right:0}.material-total{color:var(--accent);background:#344731;border-radius:3px;padding:2px;font:700 9px monospace;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.board-and-eval.eval-right .eval-bar{order:2}.board-and-eval.eval-right .board-shell{order:1}.drawing-tools,.settings-panel{padding:12px}.settings-tabs{z-index:3;background:var(--panel,#18231e);border-bottom:1px solid var(--border);grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;margin:-8px 0 10px;padding:8px 0;display:grid;position:sticky;top:-12px}.settings-tabs button{min-width:0;padding:6px 2px;font-size:11px}.settings-tabs button[aria-selected=true]{color:var(--accent);border-color:var(--accent);background:#30463c}.settings-panel [role=tabpanel][hidden]{display:none}.settings-fields{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:8px 10px;display:grid}.settings-fields>label{flex-direction:column;gap:4px;min-width:0;margin:0;font-size:11px;line-height:1.35;display:flex}.settings-fields>label.check{flex-direction:row;grid-column:1/-1;align-items:center}.settings-fields>label input:not([type=checkbox]),.settings-fields>label select{width:100%;min-width:0;max-width:100%}.settings-fields>label input[type=color]{height:28px}.settings-fields>h3,.settings-fields>section,.settings-fields>div,.settings-fields>p,.settings-fields>details{grid-column:1/-1}.settings-fields>h3{margin:2px 0 4px;font-size:13px}.settings-panel .global-line-settings{border:0;margin:0;padding:0}.settings-panel .global-line-settings>h3:first-child{margin-top:2px}.settings-panel [role=tabpanel]>.settings-help{border-top:1px solid var(--border);margin-top:12px;padding-top:8px}.drawing-tools label{justify-content:space-between;gap:8px;margin:10px 0;display:flex}.drawing-tools select{max-width:190px}.drawing-palette,.drawing-shapes{flex-wrap:wrap;gap:5px;display:flex}.drawing-palette button{border:2px solid #0000;border-radius:50%;width:26px;height:26px}.drawing-palette button[aria-pressed=true],.drawing-shapes button[aria-pressed=true]{outline:2px solid #e7e7e7}.drawing-shapes button{width:35px;height:35px;padding:2px;font-size:22px}.floating-drawing{resize:both;z-index:80;width:340px;max-width:95vw;height:560px;max-height:85vh;position:fixed;overflow:auto;box-shadow:0 8px 30px #0008}.floating-drag{cursor:grab;touch-action:none;z-index:1;background:#18231e;justify-content:space-between;align-items:center;padding:8px;display:flex;position:sticky;top:0}.score-overlay{pointer-events:none;z-index:8;width:100%;height:100%;position:absolute;inset:0}.quick-pv-toolbar{border:1px solid var(--border);background:var(--panel);border-radius:6px;flex:0 0 64px;order:3;align-self:flex-start;width:64px;padding:3px}.quick-pv-row{gap:3px;margin:3px 0;display:flex}.quick-pv-row button{min-height:28px;color:var(--pv-color);opacity:.5;border-radius:4px;flex:1;justify-content:center;align-items:center;gap:2px;padding:3px 1px;font-size:18px;display:flex}.quick-pv-row button[aria-pressed=true],.quick-pv-row button:hover{opacity:1}.quick-pv-row small{font-size:9px}.quick-pv-all{border-bottom:1px solid var(--border);padding-bottom:4px}@media (max-width:700px){.board-and-eval{flex-wrap:wrap}.quick-pv-toolbar{flex-basis:100%;justify-content:center;gap:5px;width:100%;display:flex}.quick-pv-row{flex:1;max-width:65px}.quick-pv-all{border-bottom:0;border-right:1px solid var(--border);padding:0 4px 0 0}}.quick-controls{background:var(--panel);border:1px solid var(--border);z-index:80;border-radius:6px;width:290px;max-width:100%;margin:8px auto}.quick-controls.floating{max-width:calc(100vw - 8px);margin:0;position:fixed}.quick-drag{cursor:grab;touch-action:none;align-items:center;gap:4px;padding:3px 5px;display:flex}.quick-drag small{flex:1;font-size:10px}.quick-drag button{padding:2px 5px}.quick-pv-toolbar{border:0;width:100%;padding:3px;display:block}.quick-pv-row{align-items:center;gap:3px;display:flex;position:relative}.quick-pv-row button{min-width:26px;min-height:25px;font-size:15px}.quick-cp{text-align:right;width:40px;font:10px monospace}.quick-spiral-options{font-size:11px}.quick-spiral-options summary{cursor:pointer;list-style:none}.quick-spiral-options[open]{position:relative}.quick-spiral-options label{background:var(--panel);padding:3px;display:block;position:relative}.quick-spiral-options input{width:50px}.board-controls-end{display:none}.position-editor-backdrop{z-index:200;background:#0009;justify-content:center;align-items:flex-start;padding:30px 12px;display:flex;position:fixed;inset:0;overflow:auto}.position-editor{width:760px;max-width:100%;padding:15px}.editor-layout{grid-template-columns:minmax(200px,1fr) minmax(180px,.7fr);gap:15px;display:grid}.editor-board{aspect-ratio:1;grid-template-columns:repeat(8,1fr);align-self:start;display:grid}.editor-board>div{aspect-ratio:1;min-width:0}.editor-board img{width:100%;height:100%;display:block}.editor-palette{grid-template-columns:repeat(6,1fr);gap:2px;display:grid}.editor-palette button{padding:2px}.editor-palette img{width:100%;display:block}.editor-options label{margin:6px 0;display:block}.editor-options input[type=number],.editor-options select{width:100%}.position-editor textarea{width:100%;min-height:55px;margin:8px 0}.editor-options fieldset label{align-items:center;margin-right:6px;font-size:11px;display:inline-flex}@media (min-width:1001px){.dock-workspace.has-left,.dock-workspace.has-right,.dock-workspace.has-left.has-right{grid-template-columns:minmax(200px,1fr) minmax(0,2fr) minmax(200px,1fr)}.dock-pane .pv-header{flex-wrap:nowrap;gap:3px}.dock-pane .pv-header .depth{font-size:9px}.dock-pane .pv-moves{white-space:nowrap;padding-bottom:4px;display:block;overflow-x:auto}.dock-pane .ply-wrap{display:inline-block}.dock-pane .pv-row{padding:7px}.dock-pane .line-plan{font-size:10px}}@media (max-width:700px){.quick-pv-toolbar{width:100%;display:block}.quick-pv-row{max-width:none;margin:3px 0}.quick-pv-all{border-right:0;border-bottom:1px solid var(--border);padding:0 0 4px}.editor-layout{grid-template-columns:1fr}.editor-board{width:100%;max-width:380px;margin:auto}}.board-and-eval{flex-wrap:nowrap}@media (min-width:1001px){.dock-pane .pv-row{white-space:nowrap;overflow-x:auto}.dock-pane .pv-header{vertical-align:middle;display:inline-flex}.dock-pane .pv-moves{vertical-align:middle;flex-wrap:nowrap;margin:0 0 0 8px;padding:0;display:inline-flex;overflow:visible}.dock-pane .line-plan{white-space:normal;border:0;margin:5px 0 0;padding:0}.dock-pane .line-plan summary{font-size:9px}.dock-pane .arrow-controls,.dock-pane .pv-context{white-space:normal}.quick-pv-row button:first-child{flex:1.6}.quick-cp{width:auto;font-size:9px}}.dock-pane-header{grid-template-columns:minmax(0,1fr) auto;gap:4px 6px;display:grid}.dock-pane-header .dock-title{justify-content:space-between;align-items:center;gap:8px;min-width:0;display:flex}.dock-title>button{white-space:nowrap;padding:4px 7px;font-size:11px}.dock-window-actions{display:flex}.dock-pane-header>.analysis-summary{grid-column:1/-1;gap:8px;padding:4px 0}.dock-pane-header .analysis-summary>span{min-width:0;font:600 19px monospace}.dock-pane-header .analysis-summary small{margin-top:2px}.dock-pane-header .analysis-summary strong{font-size:10px}.dock-pane .pv-panel>.hint{margin:5px 0;font-size:10px}.dock-pane .pv-row{white-space:normal;margin:7px 0;padding:6px;display:block;overflow:visible}.dock-pane .pv-header{flex-wrap:wrap;gap:4px;min-width:0;display:flex}.dock-pane .pv-moves{white-space:normal;flex-wrap:wrap;gap:1px;margin:6px 0 0;padding:0;display:flex;overflow:visible}.dock-pane .ply-wrap{display:inline-flex}.dock-pane .ply{padding:4px 3px}.dock-pane .line-plan{white-space:normal;border-top:1px solid var(--border);margin:5px 0 0;padding:5px 0 0;font-size:10px;line-height:1.4;display:block}.dock-pane[data-panel=quick] .quick-pv-toolbar{width:100%;max-width:none}.move-quality{margin-left:3px;font-weight:700}.move-quality.inaccuracy{color:#fbbf24}.move-quality.mistake{color:#fb923c}.move-quality.blunder{color:#f87171}.tree-engine-note{color:var(--muted);font-size:.7rem;position:relative}.tree-engine-note summary{cursor:pointer;padding:2px 4px;list-style:none}.tree-engine-note[open] p{z-index:30;border:1px solid var(--border);background:var(--panel);border-radius:7px;width:240px;max-height:220px;padding:10px;position:absolute;top:20px;right:0;overflow:auto;box-shadow:0 8px 24px #0008}.tree-engine-note p,.position-engine-notes p{white-space:pre-wrap;overflow-wrap:anywhere;font-size:.75rem;line-height:1.5}.position-engine-notes{margin:8px 0}.book-panel{padding:14px}.book-settings{flex-direction:column;gap:10px;font-size:12px;display:flex}.book-settings label{justify-content:space-between;align-items:center;gap:8px;display:flex}.book-settings label.check{justify-content:flex-start}.book-settings input[type=number]{width:85px}.book-settings input[type=range]{width:110px}.book-settings select{min-width:0;max-width:180px}.book-settings button{align-self:flex-start}.book-moves{flex-direction:column;gap:6px;display:flex}.book-moves button{justify-content:space-between;align-items:center;gap:10px;display:flex}.book-moves small{color:var(--muted)}.dock-pane[data-panel=quick] section{padding:4px}.dock-pane[data-panel=quick] .quick-pv-toolbar{padding:2px}.quick-pv-row,.quick-column-headings{grid-template-columns:minmax(64px,1fr) repeat(5,minmax(22px,28px));align-items:center;gap:3px;margin:3px 0;display:grid}.quick-column-headings{color:var(--muted);text-align:center;border-bottom:1px solid var(--border);padding-bottom:4px;font-size:11px}.quick-serial{min-width:12px;font-weight:700}.quick-pv-row .quick-cp{margin-left:auto;padding-right:3px}.quick-pv-row button{gap:1px;min-width:0;min-height:24px;padding:1px;font-size:14px;line-height:1}.quick-cp{white-space:nowrap;width:auto;font-size:9px}.quick-pv-all{padding-bottom:3px}.quick-spiral-options,.quick-spiral-options[open]{position:relative}.quick-spiral-options summary{padding:2px;font-size:12px}.quick-spiral-popover{z-index:35;background:var(--panel);border:1px solid var(--border);border-radius:5px;width:150px;padding:5px;position:absolute;top:24px;right:0}.quick-book-row{border-top:1px solid var(--border);color:var(--muted);align-items:center;gap:5px;padding-top:4px;font-size:10px;display:flex}.quick-book-row button{opacity:.5;place-items:center;min-width:26px;min-height:24px;padding:2px;display:grid}.quick-book-row button[aria-pressed=true],.quick-book-row button[aria-busy=true]{opacity:1;color:var(--accent)}.spiral-running{transform-origin:50%;animation:1.2s linear infinite spiral-rotate}.quick-spiral-progress{color:var(--accent);font:10px monospace}@keyframes spiral-rotate{to{transform:rotate(360deg)}}@media (prefers-reduced-motion:reduce){.spiral-running{animation:none}}.quick-pv-row button:nth-child(3){font-size:12px}.quick-limits{gap:8px;margin-right:auto;display:flex}.quick-limit{color:var(--accent);cursor:pointer;align-items:center;gap:2px;display:flex;position:relative}.quick-limit select{opacity:0;cursor:pointer;width:100%;height:100%;position:absolute;inset:0}.quick-limit:focus-within{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}.quick-book-row{flex-wrap:wrap}.quick-settings-modal{background:var(--panel);width:520px;max-width:calc(100vw - 24px);max-height:calc(100dvh - 40px);color:var(--text);border:1px solid var(--border);border-radius:10px;padding:18px;overflow:auto}.quick-settings-modal::backdrop{background:#0009}.quick-settings-modal fieldset{border:1px solid var(--border);border-radius:6px;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px 10px;margin:8px 0 0;padding:8px;display:grid}.quick-settings-modal legend{color:var(--accent);padding:0 5px;font-size:12px}.quick-settings-modal fieldset>label{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:5px;min-width:0;margin:2px 0;font-size:11px;display:flex}.quick-settings-modal fieldset>p,.quick-settings-modal .quick-animation-group{grid-column:1/-1;margin:3px 0;font-size:10px}.quick-settings-modal select{max-width:100%;padding:5px;font-size:11px}.quick-settings-modal input{padding:5px}.quick-settings-modal input[type=checkbox]{width:auto}.quick-animation-group{justify-content:space-between;gap:16px;margin:12px 0;font-size:12px;display:flex}.quick-animation-group label{align-items:center;gap:5px;display:flex}.quick-settings-modal .quick-animation-group input{width:auto}.quick-settings-modal input{width:65px}.quick-settings-modal .section-heading button{padding:2px 8px;font-size:20px}.engine-move-rank{vertical-align:middle;flex-shrink:0;align-items:center;display:inline-flex}.tree-engine-note summary .engine-move-rank{height:18px}.tree-engine-note summary .engine-move-rank svg{width:20px;height:18px}.annotation-controls>label{justify-content:space-between;align-items:center;gap:8px;margin:8px 0;font-size:12px;display:flex}.annotation-controls input[type=number]{width:70px}.annotation-controls select{max-width:210px}.annotation-controls .check{gap:6px;font-size:12px;display:flex}.board-and-eval.preview-faded .eval-bar,.board-and-eval.preview-faded .material-bars{opacity:var(--preview-opacity)}.book-moves button{flex-wrap:wrap}.book-evaluation{font-variant-numeric:tabular-nums;white-space:nowrap}.tooltip-saved-spiral{flex-direction:column;gap:4px;max-height:160px;font-size:11px;display:flex;overflow:auto}.analysis-notation{line-height:2;display:block}.analysis-variation{color:var(--muted);background:#ffffff05;border-radius:4px;padding:2px}.analysis-variation .ply{color:var(--line-color)}.branch-toggle{min-width:20px;color:var(--muted);cursor:pointer;vertical-align:baseline;background:0 0;border:0;padding:0 4px;display:inline-block}.branch-toggle:hover{color:var(--text);background:var(--surface)}.book-line-source{color:var(--muted);white-space:nowrap;align-items:center;gap:3px;font-size:10px;display:inline-flex}.book-line-source+.pv-score{margin-left:5px}.pv-rank svg{display:block}.quick-column-headings,.quick-pv-row{grid-template-columns:minmax(64px,1.6fr) repeat(7,minmax(20px,1fr))}.quick-pv-row button{opacity:.65;color:color-mix(in srgb,var(--pv-color) 65%,var(--muted));background:0 0}.quick-pv-row button[aria-pressed=false]{opacity:.3;border-color:var(--border);background:0 0}.quick-pv-row button[aria-pressed=true]{opacity:.8;background:color-mix(in srgb,var(--pv-color) 10%,var(--panel));border-color:color-mix(in srgb,var(--pv-color) 40%,var(--border))}.quick-pv-row button[aria-pressed=false]:hover{opacity:.45;border-color:var(--border);background:0 0}.quick-pv-row button[aria-pressed=true]:hover{opacity:.95}.quick-pv-row button:disabled{opacity:.2}.quick-book-row button[aria-pressed=false]{opacity:.3;background:0 0}.quick-book-row button[aria-pressed=true]{opacity:.8;background:color-mix(in srgb,var(--accent) 10%,var(--panel));border-color:color-mix(in srgb,var(--accent) 40%,var(--border))}.position-toolbar{border:1px solid var(--border);background:var(--panel);border-radius:5px;flex:0 0 28px;order:3;align-self:flex-start;gap:2px;width:28px;padding:2px;display:grid}.position-toolbar button{min-width:0;min-height:0;color:var(--muted);opacity:.45;background:0 0;border:1px solid #0000;border-radius:3px;place-items:center;padding:0;display:grid;position:relative}.position-toolbar button[aria-pressed=true]{opacity:1;color:var(--accent);background:#a8c68a18;border-color:#718a5966}.position-toolbar button:hover,.position-toolbar button:focus-visible{opacity:1;background:#304339}.position-toolbar svg{fill:currentColor;width:100%;height:100%;max-height:24px}.position-found{background:currentColor;border-radius:50%;width:3px;height:3px;position:absolute;bottom:1px;right:1px}.position-overlay{pointer-events:none;z-index:5;width:100%;height:100%;position:absolute;inset:0}.position-tooltip{z-index:90;pointer-events:auto;background:#1e2d24;border:1px solid #61755c;border-radius:8px;width:284px;max-width:calc(100vw - 16px);max-height:250px;padding:12px;font-size:11px;position:fixed;overflow:auto;box-shadow:0 10px 30px #0008}.position-tooltip strong{font-size:12px}.position-tooltip p{color:var(--muted);margin:7px 0;line-height:1.5}.position-tooltip ul{margin:4px 0 8px;padding-left:14px;line-height:1.5}.position-tooltip small{color:var(--muted);margin-top:8px;display:block}.position-findings.w b{color:#69e1d2}.position-findings.b b{color:#c5a3ff}.position-toolbar.two-columns{flex-basis:56px;grid-template-columns:repeat(2,minmax(0,1fr));width:56px}.position-toolbar{scrollbar-width:thin;scrollbar-color:#60735e transparent;overflow-y:auto}.position-validation button{padding:5px 8px;font-size:11px}.position-toolbar svg.rotating{animation:1s linear infinite crank-turn}.position-check-progress{background:var(--panel);color:var(--accent);padding:0 1px;font-size:8px;line-height:10px;position:absolute;bottom:0;right:0}.position-toolbar{grid-template-rows:none;align-content:start}.position-toolbar .position-master{grid-column:1/-1}.position-group-divider{border-top:1px solid #60735e77;grid-column:1/-1;align-self:center;height:3px}.position-group-name{text-transform:uppercase;letter-spacing:.04em;font-size:10px;color:var(--accent)!important;margin:0 0 5px!important}.board-shell [data-square]{-webkit-user-select:none;user-select:none}.board-shell [data-square] img{-webkit-user-drag:none}.piece-analysis-tooltip{z-index:100;background:#1e2d24;border:1px solid #61755c;border-radius:10px;padding:12px;font-size:12px;position:fixed;overflow:auto;box-shadow:0 12px 36px #0009}.piece-analysis-heading{align-items:center;gap:8px;display:flex}.piece-analysis-heading img{width:32px;height:32px}.piece-analysis-heading button{margin-left:auto;padding:2px 7px;font-size:19px}.piece-analysis-tooltip dl{grid-template-columns:auto 1fr;gap:6px 10px;margin:12px 0;display:grid}.piece-analysis-tooltip dt,.piece-analysis-tooltip small{color:var(--muted)}.piece-analysis-tooltip dd{overflow-wrap:anywhere;margin:0}.piece-analysis-tooltip ul{border-top:1px solid var(--border);margin:10px 0;padding:0;list-style:none}.piece-analysis-tooltip li{border-bottom:1px solid var(--border);gap:8px;padding:7px 0;line-height:1.5;display:flex}.piece-analysis-tooltip li span{color:var(--accent);min-width:22px}.piece-analysis-tooltip p{margin:8px 0}.position-toolbar .position-master{grid-template-columns:1fr;gap:2px;display:grid}.position-toolbar.two-columns .position-master{grid-template-columns:1fr 1fr}.annotation-quick-view{overflow-wrap:anywhere;background:linear-gradient(155deg,#23352a,#15221b);border:1px solid #52684a;border-radius:12px;padding:15px;font-size:12px;box-shadow:0 8px 26px #0003}.annotation-quick-view header{padding-bottom:12px}.annotation-eyebrow{letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-size:9px}.annotation-quick-view h2{margin:6px 0 10px;font-family:Georgia,serif;font-size:21px}.annotation-badges{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.annotation-choice{color:var(--accent);align-items:center;gap:5px;font-size:11px;display:flex}.annotation-quality{font-size:11px;font-weight:600}.annotation-quality.brilliant{color:#69e1d2}.annotation-eval{margin-left:auto;font-family:monospace;font-size:15px}.annotation-section{border-top:1px solid #45604466;margin-top:8px;padding-top:12px}.annotation-section h3{letter-spacing:.09em;margin:0 0 8px;font-size:10px}.annotation-section p{margin:0 0 8px;line-height:1.6}.annotation-user-notes{white-space:pre-wrap}.annotation-plan{background:#101a1533;border:1px solid #45604466;border-radius:7px;margin:6px 0}.annotation-plan summary{align-items:center;gap:8px;padding:9px;font-size:11px;display:flex}.annotation-plan summary:before{content:"▸";color:var(--muted)}.annotation-plan[open] summary:before{content:"▾"}.annotation-plan summary strong{color:var(--accent);font-family:monospace}.annotation-plan-move{margin-left:auto}.annotation-plan-body{padding:0 9px 9px}.annotation-continuation{color:#a8c3ae;font-family:monospace;font-size:11px}.annotation-missing{color:var(--muted);border-top:1px solid #45604466;margin:0;padding-top:12px}.dock-pane .pv-panel{padding:8px}.pv-panel-heading{flex-wrap:wrap;gap:6px}.pv-panel-heading h2{white-space:nowrap;font-size:13px}.pv-panel-tools{align-items:center;gap:5px;display:flex}.pv-panel-tools button,.pv-panel-tools select{padding:3px 5px;font-size:10px}.pv-panel-tools label{align-items:center;gap:3px;font-size:11px;display:flex}.pv-panel-meta{color:var(--muted);justify-content:space-between;gap:8px;margin:3px 0 7px;font-size:9px;display:flex}.dock-pane .pv-row{border-left:3px solid var(--line-color);border-radius:6px;margin:5px 0;padding:7px 8px}.dock-pane .pv-header{flex-wrap:nowrap;justify-content:space-between;gap:5px;display:flex}.pv-line-identity,.pv-line-actions{align-items:center;gap:4px;min-width:0;display:flex}.pv-line-identity{flex-wrap:wrap;flex:1}.pv-line-actions{flex-shrink:0}.pv-line-actions button{min-width:23px;height:24px;padding:2px 4px;font-size:11px}.pv-line-actions .arrow-settings{color:var(--muted)}.pv-line-identity .pv-rank{background:0 0;border:0;min-width:24px;padding:0}.pv-line-identity .pv-score{font-variant-numeric:tabular-nums;font-size:13px}.pv-line-identity .book-line-source{font-size:9px}.dock-pane .pv-moves{gap:0;margin-top:5px;line-height:1.5}.dock-pane .pv-moves .ply{min-height:24px;padding:3px 2px;font-size:11px}.dock-pane .line-plan{margin-top:4px;padding-top:4px;font-size:10px}.pv-notation-row{align-items:flex-start;gap:4px;min-width:0;display:flex}.pv-opening{color:var(--muted);overflow-wrap:anywhere;white-space:normal;margin:4px 0;font-size:11px;line-height:1.4}.pv-opening span{color:var(--line-color);font-family:monospace}.pv-notation-row .pv-moves{white-space:nowrap;flex:1;min-width:0;height:28px;display:block;overflow:hidden}.pv-notation-row.expanded .pv-moves{white-space:normal;height:auto;overflow:visible}.dock-pane .pv-notation-row .pv-moves{white-space:nowrap;flex:1;min-width:0;height:24px;display:block;overflow:hidden}.dock-pane .pv-notation-row.expanded .pv-moves{white-space:normal;height:auto;overflow:visible}.pv-line-expand{flex-shrink:0;min-width:22px;height:24px;margin-top:5px;padding:0 4px;font-size:16px}.pv-plan-toggle{place-items:center;display:grid}.pv-plan-toggle[aria-expanded=true]{color:var(--accent);border-color:var(--accent)}.pv-settings-modal{width:400px}.line-settings-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 14px;display:grid}.pv-settings-modal .line-settings-grid label{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:5px;margin:0;display:flex}.line-settings-grid input[type=range]{width:100%}.line-settings-grid input[type=number]{width:64px}.line-score-positions{flex-wrap:wrap;gap:10px;margin:6px 0;display:flex}.pv-settings-modal .line-score-positions label{margin:0;display:inline-flex}.pv-settings-modal .line-settings-grid label.check,.pv-settings-modal fieldset>label.check{justify-content:flex-start;gap:7px}.global-line-settings{border-block:1px solid var(--border);margin:12px 0;padding:0 0 8px}.settings-pair{grid-template-columns:repeat(2,minmax(0,1fr));gap:5px 12px;display:grid}.settings-panel .settings-pair label{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:5px;margin:3px 0;font-size:11px;display:flex}.settings-panel .settings-pair input[type=number]{width:62px;max-width:100%}.global-score-positions{flex-wrap:wrap;align-items:center;gap:8px;margin:7px 0;font-size:10px;display:flex}.settings-panel .global-score-positions label{margin:0;display:inline-flex}.settings-help summary{cursor:pointer;color:var(--muted);font-size:10px}.width-settings-footer{justify-content:space-between;align-items:center;gap:5px;display:flex}.pawn-structure-view{border-top:1px solid var(--border);padding-top:8px}.pawn-structure-heading,.pawn-structure-controls{justify-content:space-between;align-items:center;gap:6px;margin:6px 0;font-size:11px;display:flex}.pawn-structure-heading button,.pawn-structure-controls button{padding:3px 7px}.pawn-structure-board{aspect-ratio:1;border-radius:6px;grid-template-columns:repeat(8,minmax(0,1fr));width:100%;display:grid;overflow:hidden}.pawn-structure-board>div{aspect-ratio:1;min-width:0;position:relative}.pawn-structure-board img{width:100%;height:100%;display:block}.pawn-structure-board .pawn-hole{background:#10171577;border:2px dashed;border-radius:50%;place-items:center;font-size:clamp(12px,2vw,22px);display:grid;position:absolute;inset:12%}.pawn-hole.w,.pawn-hole-legend .w{color:#69e1d2}.pawn-hole.b,.pawn-hole-legend .b{color:#c5a3ff}.pawn-hole-legend{gap:12px;margin-top:7px;font-size:10px;display:flex}.pawn-rank,.pawn-file{font-size:9px;font-weight:600;line-height:1;position:absolute}.pawn-rank{top:2px;left:2px}.pawn-file{bottom:2px;right:2px}.pawn-structure-highlight{pointer-events:none;border:2px solid #e8c36d;border-radius:3px;position:absolute;inset:3%}.pawn-structure-highlight>span{color:#e8c36d;background:#101715d9;border-radius:3px;max-width:100%;padding:1px 2px;font-size:9px;line-height:1;position:absolute;bottom:0;right:0}.pawn-show-all{padding:4px 6px;font-size:10px}.pawn-structure-table{border-collapse:collapse;table-layout:fixed;width:100%;margin:10px 0;font-size:10px}.pawn-structure-table caption{text-align:left;padding:5px 0;font-size:11px;font-weight:600}.pawn-structure-table.w caption{color:#69e1d2}.pawn-structure-table.b caption{color:#c5a3ff}.pawn-structure-table th,.pawn-structure-table td{text-align:left;vertical-align:top;border-bottom:1px solid var(--border);padding:5px 3px;line-height:1.4}.pawn-structure-table th:first-child{width:43%}.pawn-structure-table thead{color:var(--muted);font-size:9px}.pawn-structure-table button{text-align:left;white-space:normal;max-width:100%;padding:2px 4px;font-size:10px}.pawn-structure-table button[aria-pressed=true]{color:var(--accent);border-color:var(--accent);background:#a8c68a18}.pawn-structure-table td>small,.pawn-structure-table th>small{color:var(--muted);margin-top:4px;font-size:9px;font-weight:400;display:block}.pawn-feature-description{font-size:10px}.courses-link{color:var(--accent);font-size:12px;text-decoration:none}.courses-link:hover{text-decoration:underline}.course-review-banner{background:var(--panel);padding:10px 30px;font-size:12px}.course-review-banner a{color:var(--accent)}.pawn-notation-heading{justify-content:space-between;align-items:center;gap:6px;display:flex}.pawn-structure-table caption .icon-button{float:right;align-items:center;padding:2px;display:inline-flex}.ply-tooltip .tooltip-title{justify-content:space-between;align-items:center;gap:12px;display:flex}.ply-tooltip-close{padding:0 5px;font-size:18px;line-height:20px}.shortcut-menu{background:var(--panel);width:440px;max-width:calc(100vw - 24px);max-height:calc(100vh - 24px);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:16px;overflow:auto}.shortcut-menu::backdrop{background:#0008}.analysis-cache-control{align-items:center;gap:4px;padding:4px;display:inline-flex}.analysis-cache-control span{font-variant-numeric:tabular-nums;font-size:11px}.line-target{flex-wrap:wrap;align-items:center;gap:6px 12px;padding:6px 0;font-size:12px;display:flex}.line-target span{color:var(--muted)}@media (max-width:600px){.app-header{flex-wrap:wrap;gap:4px}.header-actions{flex-wrap:wrap;gap:6px;max-width:100%}.line-target{overflow-wrap:anywhere;min-width:0;max-width:100%}}.shortcut-menu table{border-collapse:collapse;width:100%;font-size:12px}.shortcut-menu th,.shortcut-menu td{text-align:left;border-bottom:1px solid var(--border);padding:8px 5px}.shortcut-guide{width:1040px;padding:16px}.shortcut-guide-header{z-index:1;background:var(--panel);border-bottom:1px solid var(--border);margin-bottom:12px;padding:8px 0;position:sticky;top:-16px}.shortcut-search{align-items:center;gap:8px;display:flex}.shortcut-search input{flex:1;width:100%;min-width:0}.shortcut-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:0;padding:0;list-style:none;display:grid}.shortcut-grid li{border:1px solid var(--border);background:#101a1533;border-radius:6px;min-width:0;padding:10px}.shortcut-grid kbd{color:var(--accent);overflow-wrap:anywhere;font-size:11px;line-height:1.5;display:block}.shortcut-grid p{margin:6px 0 0;font-size:12px;line-height:1.5}.shortcut-empty{color:var(--muted);padding:20px 0}.sound-control{gap:3px;display:inline-flex}.sound-control>button:last-of-type{padding-inline:6px}.sound-settings-dialog{background:var(--panel);width:380px;max-width:calc(100vw - 24px);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:16px}.sound-settings-dialog::backdrop{background:#0008}.sound-settings-fields{gap:12px;width:100%;display:grid}.sound-settings-fields label{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:6px;font-size:12px;display:flex}.sound-settings-fields input[type=range]{width:100%}.sound-settings-fields select{max-width:65%}@media (max-width:850px){.shortcut-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:520px){.shortcut-grid{grid-template-columns:1fr}.shortcut-guide{padding:12px}.shortcut-guide-header{top:-12px}}.login-page,.account-loading{place-content:center;min-height:100vh;padding:24px;display:grid}.login-form{background:var(--panel);border:1px solid var(--border);border-radius:8px;width:320px;max-width:calc(100vw - 48px);padding:24px}.login-form label{gap:5px;margin:16px 0;display:grid}.login-form input{width:100%;padding:9px}.login-form>button{width:100%}.login-form [role=alert]{color:#ff9292}.account-sync{color:var(--muted);justify-content:flex-end;align-items:center;gap:8px;padding:6px 16px;font-size:11px;display:flex}.save-icon{flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;display:inline-flex}.save-icon.saved{color:var(--accent)}.save-icon.failed{color:#ff9292}.save-icon.saving svg{animation:1s ease-in-out infinite save-pulse}.save-status-text{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@keyframes save-pulse{50%{opacity:.35}}@media (prefers-reduced-motion:reduce){.save-icon.saving svg{opacity:.5;animation:none}}.board-legal-moves{pointer-events:none;z-index:14;width:100%;height:100%;position:absolute;inset:0}.pawn-legal-destination{z-index:14;pointer-events:none;background:#10251d99;border:1px solid #e5f4da;border-radius:50%;width:20%;height:20%;position:absolute;top:40%;left:40%}.pawn-legal-destination.capture{background:0 0;border-width:3px;width:84%;height:84%;top:8%;left:8%}.board-player{flex-wrap:wrap;gap:6px;margin:10px 0;display:flex}.playback-speed{align-items:center;gap:6px;font-size:12px;display:flex}.playback-speed input{width:76px}.current-fen{border:1px solid var(--border);border-radius:7px;align-items:baseline;gap:8px;margin:10px 0;padding:8px;font-size:11px;display:flex}.current-fen>span{color:var(--muted);flex-shrink:0}.current-fen code{overflow-wrap:anywhere;-webkit-user-select:all;user-select:all;min-width:0}.saved-pgn-picker{color:var(--muted);gap:9px;margin:14px 0;font-size:11px;display:grid}.saved-pgn-picker label{gap:6px;display:grid}.saved-pgn-picker select{width:100%;min-width:0;font-size:11px}.saved-pgn-picker a{color:var(--accent);font-size:11px}.site-header .brand{color:var(--text);white-space:nowrap;text-decoration:none}.site-identity{align-items:center;gap:14px;min-width:0;display:flex}.site-header .brand .site-brand-name{letter-spacing:-.2px;color:var(--text);font-family:Georgia,serif;font-size:16px}.site-page-title{color:var(--muted);border-left:1px solid var(--border);text-overflow:ellipsis;white-space:nowrap;margin:0;padding-left:14px;font-size:12px;font-weight:400;overflow:hidden}.site-navigation{align-items:center;gap:10px;font-size:11px;display:flex}.site-navigation a{color:var(--muted);padding:5px 0;text-decoration:none}.site-navigation a[aria-current=page]{color:var(--accent)}.site-header>.header-actions>span{color:var(--muted);font-size:10px}@media (max-width:600px){.site-header{flex-wrap:wrap;min-height:36px}.site-identity{gap:8px}.site-page-title{max-width:160px;padding-left:8px}.site-navigation{gap:9px}.site-header .brand .site-brand-name{font-size:15px}}.lichess-background-status{z-index:1000;border:1px solid var(--border);background:var(--panel);border-radius:10px;max-width:360px;padding:12px 16px;font-size:12px;position:fixed;bottom:16px;right:16px;box-shadow:0 4px 20px #0005}.lichess-background-status p{margin:0 0 8px}.profile-menu{flex-shrink:0;margin-left:auto;position:relative}.profile-menu>summary{cursor:pointer;color:var(--accent);border:1px solid var(--border);border-radius:6px;align-items:center;gap:6px;padding:7px 9px;font-size:12px;list-style:none;display:flex}.profile-menu>summary::-webkit-details-marker{display:none}.profile-menu-panel{z-index:1200;background:var(--panel,#101715);border:1px solid var(--border);border-radius:9px;gap:12px;width:260px;padding:14px;display:grid;position:absolute;top:calc(100% + 7px);right:0;box-shadow:0 8px 24px #0008}.profile-menu-panel>a,.profile-menu-panel>button{text-align:left;font-size:12px}.profile-menu-panel>details{font-size:12px}.profile-menu-panel label{align-items:center;gap:6px;margin:12px 0;display:flex}.profile-menu-panel input[type=checkbox]{width:auto}.identity-dialog{background:var(--panel,#101715);width:min(420px,100vw - 32px);color:var(--text);border:1px solid var(--border);border-radius:12px;padding:24px}.identity-dialog::backdrop{background:#000b}.identity-dialog form{gap:16px;display:grid}.identity-dialog h2,.identity-dialog p{margin:0}.identity-dialog p{font-size:13px;line-height:1.6}.identity-dialog label{gap:8px;font-size:12px;display:grid}.identity-dialog input{width:100%}.fen-panel{min-width:0;padding:12px;font-size:12px}.fen-panel textarea{resize:vertical;width:100%;font:11px monospace}.fen-metrics{flex-wrap:wrap;gap:14px;margin-bottom:14px;display:flex}.fen-metrics strong{font-size:20px;display:block}.fen-record{border-top:1px solid #ffffff25;padding:12px 0}.fen-record code{overflow-wrap:anywhere;white-space:normal;font-size:10px;display:block}.fen-record p{margin:7px 0}.fen-pvs{flex-wrap:wrap;gap:10px;display:flex}.fen-records{max-height:60vh;overflow:auto}.studio-sidebar:has(.fen-panel) .studio-moves{display:none}.studio-sidebar:has(.fen-panel) .studio-inspector{max-height:calc(100vh - 160px);overflow:auto}