:root{--cell-w: 36px;--row-h: 34px;--bar-w: calc(var(--cell-w) * 4);--label-w: 30px;--staff-air: 14px;--strip-h: 22px;--paper: #fbf8f1;--page: #ece7dc;--ink: #16202b;--string: #2f3a45;--bar: #b9c2cc;--grid: #dde3e9;--barline: #a3aeb9;--muted: #7d8894;--accent: #a8492f;--group-1: #a8492f;--group-2: #3f6d5a;--group-3: #3c5b85;--group-4: #8a6a2f;--spine-w: 6px;--group-indent: 14px;color-scheme:light}*{box-sizing:border-box}body{margin:0;background:var(--page);color:var(--ink);font:16px/1.5 -apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif}.app{max-width:1300px;margin:0 auto;padding:32px 10px 64px}.header{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}h1{margin:0;font:600 26px/1.2 Georgia,Times New Roman,serif;letter-spacing:.01em}.title-input{width:220px;padding:8px 10px;border:1px solid var(--bar);border-radius:8px;background:var(--paper);color:var(--ink);font:600 16px Georgia,Times New Roman,serif}.title-input:focus-visible,.cell:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;margin:24px 0 12px}.toolbar-group{display:flex;gap:8px}.toolbar-group--end{margin-left:auto}button,.button-link{padding:7px 12px;border:1px solid var(--bar);border-radius:8px;background:var(--paper);color:var(--ink);font-size:14px;cursor:pointer}.button-link{display:inline-flex;align-items:center;text-decoration:none}button:hover:not(:disabled),.button-link:hover{border-color:var(--muted)}button:disabled{opacity:.45;cursor:not-allowed}button.danger,button.is-on{border-color:var(--accent);background:var(--accent);color:#fff}.icon{display:block;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.icon .solid{fill:currentColor}.icon-button{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;padding:0}button.link{padding:0;border:0;background:none;color:var(--muted);font-size:13px;text-decoration:underline}.status{min-height:20px;color:var(--accent);font-size:13px}.note-shell-text{color:var(--muted);font-size:14px}.note-list{margin:24px 0 0;padding:0;list-style:none;border-top:1px solid var(--bar)}.note-list-link{display:flex;flex-wrap:wrap;gap:4px 16px;align-items:baseline;justify-content:space-between;padding:14px 4px;border-bottom:1px solid var(--bar);color:inherit;text-decoration:none}.note-list-link:hover{background:var(--paper)}.note-list-title{font:600 17px Georgia,Times New Roman,serif}.note-list-slug{color:var(--muted);font:12px ui-monospace,Menlo,monospace}.link-inline{color:var(--muted);font-size:13px}.edit-hint{margin:0 0 4px;color:var(--accent);font-size:13px}.row-gap{position:relative;z-index:7;height:12px}.row-gap-drop{display:flex;align-items:center;width:100%;height:100%;padding:0;border:0;border-radius:0;background:none}.row-gap-line{display:block;width:100%;height:2px;border-radius:1px;background:repeating-linear-gradient(to right,rgb(168 73 47 / 45%) 0 7px,transparent 7px 13px)}.row-gap-drop:hover .row-gap-line,.row-gap-drop:focus-visible .row-gap-line{height:3px;background:var(--accent)}.row-gap-drop:hover:before,.row-gap-drop:focus-visible:before{content:"";position:absolute;left:0;width:9px;height:9px;border-radius:50%;background:var(--accent)}.row-gap-drop:focus-visible{outline:none}.row-select{position:absolute;inset:2px;z-index:5;padding:0;border:1px dashed transparent;border-radius:3px;background:none}.row-select:hover:not(:disabled){border-color:var(--accent);background:#a8492f0f}.row-select.is-selected,.row-select.is-selected:hover{border-style:solid;border-color:var(--accent);background:#a8492f1f}.popover{position:fixed;z-index:20;max-width:calc(100vw - 16px);border:1px solid var(--bar);border-radius:10px;background:var(--paper);box-shadow:0 2px 8px #16202b24}.export-menu{display:flex;flex-direction:column;width:200px;max-width:100%;padding:5px}.export-option{display:flex;flex-direction:column;gap:2px;align-items:flex-start;padding:7px 10px;border:0;border-radius:7px;background:none;text-align:left}.export-option:hover:not(:disabled){background:var(--page)}.export-name{font-size:14px}.export-hint{color:var(--muted);font-size:12px}.sheet{margin-top:16px}.editor{display:flex;flex-direction:column}.memo-section{display:flex;flex-direction:column;align-items:flex-start;padding:10px 0;border-top:1px solid var(--bar)}.memo-toggle{display:flex;align-items:baseline;gap:6px;max-width:100%;padding:2px 6px 2px 0;border:0;border-radius:6px;background:none;color:var(--muted);text-align:left}.memo-toggle:hover{border:0;color:var(--accent)}.memo-caret{display:inline-block;font:400 12px/1 ui-monospace,Menlo,monospace;transition:transform .12s ease-out}.memo-caret.is-open{transform:rotate(90deg)}.memo-heading{font:600 10px/1 ui-monospace,Menlo,monospace;letter-spacing:.09em;text-transform:uppercase}.memo-preview{overflow:hidden;font-size:12px;font-style:italic;white-space:nowrap;text-overflow:ellipsis}.memo-input{width:calc(100% - var(--label-w));margin-left:var(--label-w);padding:6px 8px;border:1px solid var(--bar);border-radius:8px;background:var(--paper);color:inherit;font:inherit;font-size:13px;line-height:1.5;resize:vertical}.memo-input:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.memo-input::placeholder{color:var(--muted);font-style:italic}.group{display:flex;flex-direction:column;margin-top:12px}.editor>:first-child{margin-top:0}.editor>.group+.staff{margin-top:12px}.group-bar{position:relative;display:flex;align-items:center;gap:8px;height:28px;padding:0 6px 0 4px;border-radius:4px 4px 0 0;background:var(--group);color:var(--paper)}.group-caret{display:flex;flex:none;align-items:center;justify-content:center;width:20px;height:20px;padding:0;border:1px solid transparent;border-radius:5px;background:none;color:inherit}.group-caret-mark{display:block;font:400 13px/1 ui-monospace,Menlo,monospace;transition:transform .12s ease-out}.group-caret-mark.is-open{transform:rotate(90deg)}.group-delete{display:flex;flex:none;align-items:center;justify-content:center;width:20px;height:20px;margin-left:auto;padding:0;border:1px solid transparent;border-radius:5px;background:none;color:#fbf8f1a6;font:400 15px/1 ui-monospace,Menlo,monospace}.group-caret:hover:not(:disabled),.group-delete:hover:not(:disabled){border-color:#fbf8f18c;background:#fbf8f129;color:var(--paper)}.group-delete:disabled{opacity:.35;cursor:default}.group-drop{position:absolute;inset:0;z-index:7;display:flex;align-items:center;justify-content:flex-end;padding:0 10px;border:1px dashed rgb(251 248 241 / 60%);border-radius:inherit;background:#16202b1f}.group-drop:hover,.group-drop:focus-visible{border-style:solid;border-color:var(--paper);background:#16202b3d;outline:none}.group-drop-hint{color:var(--paper);font:600 10px/1 ui-monospace,Menlo,monospace;letter-spacing:.09em;text-transform:uppercase;opacity:.8}.group-drop:hover .group-drop-hint,.group-drop:focus-visible .group-drop-hint{opacity:1}.group-bar-name{flex:none;padding:2px 5px;border:1px solid transparent;border-radius:5px;background:none;color:inherit;font:600 12px/1 ui-monospace,Menlo,monospace;letter-spacing:.08em;text-transform:uppercase}.group-bar-name:hover:not(:disabled){border-color:#fbf8f18c;background:#fbf8f11f}.group-bar-name:disabled{opacity:1;cursor:default}.group-bar-rows{color:#fbf8f1b3;font:500 11px/1 ui-monospace,Menlo,monospace;letter-spacing:.04em}.group-bar-input{width:160px;padding:2px 5px;border:1px solid rgb(251 248 241 / 70%);border-radius:5px;background:#fbf8f129;color:var(--paper);font:600 12px ui-monospace,Menlo,monospace;letter-spacing:.08em}.group-bar-input::placeholder{color:#fbf8f1a6;font-style:italic}.group-bar-input:focus-visible{outline:2px solid var(--paper);outline-offset:-3px}.group-body{padding-left:var(--group-indent);border-left:var(--spine-w) solid var(--group);border-radius:0 0 0 4px;background:color-mix(in srgb,var(--group) 4%,transparent)}.group-body>.staff:first-child{border-top:0}.group--empty .group-bar,.group--folded .group-bar{border-radius:4px}.group-add{height:28px;margin-top:12px;padding:0 10px;border-style:dashed;border-radius:4px;background:none;color:var(--muted);font:600 11px/1 ui-monospace,Menlo,monospace;letter-spacing:.08em;text-align:left;text-transform:uppercase}.group-add:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.staff{position:relative;display:grid;grid-template-columns:max-content minmax(0,max-content) max-content;align-items:start;justify-content:start;padding-top:32px;border-top:1px solid var(--bar)}.row-head{position:absolute;z-index:6;top:6px;left:8px;display:flex;align-items:center;gap:6px;pointer-events:none}.row-head>*{pointer-events:auto}.row-number{display:flex;flex:none;align-items:center;justify-content:center;width:26px;height:26px;padding:0;border:1px solid var(--bar);border-radius:50%;background:none;color:var(--muted);font:600 13px/1 ui-monospace,Menlo,monospace;font-variant-numeric:tabular-nums}.row-name{padding:3px 6px;border:1px solid transparent;border-radius:6px;background:none;color:var(--muted);font:600 12px/1 ui-monospace,Menlo,monospace;letter-spacing:.04em}.row-number:hover:not(:disabled),.row-name:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.row-name:disabled{opacity:1;cursor:default;pointer-events:none}.row-number.is-folded{border-color:var(--muted);background:var(--bar);color:var(--ink)}.row-folded{color:var(--muted);font:500 11px/1 ui-monospace,Menlo,monospace;letter-spacing:.04em}.row-name--empty{border-style:dashed;border-color:var(--bar);opacity:0}.staff:hover .row-name--empty,.row-name--empty:hover,.row-name--empty:focus-visible{opacity:1}.row-name-input{width:180px;padding:3px 6px;border:1px solid var(--accent);border-radius:6px;background:var(--paper);color:var(--ink);font:600 12px ui-monospace,Menlo,monospace}.staff-scroll{min-width:0;padding:var(--staff-air) 0;overflow-x:auto;overflow-y:hidden;overscroll-behavior-x:contain;scrollbar-width:thin}.row-bars[hidden]{display:none}.row-bars{display:flex;flex:none;flex-direction:column;align-items:center;align-self:center;gap:6px;margin-left:10px}.bar-button{width:34px;height:34px;padding:0;border-radius:8px;color:var(--muted);font:400 20px/1 ui-monospace,Menlo,monospace}.bar-button:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.bar-button--close{font-size:15px;border-color:var(--accent);color:var(--accent)}.bar-button--close:hover:not(:disabled){background:var(--accent);color:#fff}.staff--folded{padding-bottom:8px}.staff--folded .staff-labels,.staff--folded .staff-scroll,.staff--folded .row-bars{display:none}.row-bars--edit{position:relative;z-index:6}.bar-button--delete{display:inline-flex;align-items:center;justify-content:center}.bar-button--delete:hover:not(:disabled){border-color:var(--accent);background:var(--accent);color:#fff}.bar-button.is-armed,.bar-button.is-armed:hover{border-color:var(--accent);background:var(--accent);color:#fff}.staff-labels{display:flex;flex-direction:column;margin-top:calc(var(--staff-air) + var(--strip-h) * var(--strips, 0))}.position-strip{position:relative;z-index:6;display:flex;align-items:center;width:max-content;height:var(--strip-h)}.position-cell{position:relative;width:var(--cell-w);height:100%;padding:0;border:0;border-radius:0;background:none}.position-dot:before{content:"";position:absolute;top:50%;left:50%;width:11px;height:11px;transform:translate(-50%,-50%);border:1px solid var(--barline);border-radius:50%;background:var(--paper)}.position-dot:hover:before{border-color:var(--accent)}.position-dot.is-selected:before{border-color:var(--accent);background:var(--accent)}.position-dot.is-span:before{border-color:var(--accent);background:#a8492f47}.paste-button{display:flex;align-items:center;justify-content:center;color:var(--muted);border-radius:4px}.paste-button:disabled{opacity:.25}.paste-button:not(:disabled):hover{color:var(--accent);background:#a8492f1f}.paste-button.is-armed{color:var(--paper);background:var(--accent)}.string-label{display:flex;align-items:center;justify-content:flex-end;width:var(--label-w);height:var(--row-h);padding-right:10px;color:var(--muted);font:600 13px ui-monospace,Menlo,monospace}.staff-body{position:relative;width:max-content}.staff-body{background-image:repeating-linear-gradient(to right,var(--barline) 0 1px,transparent 1px var(--bar-w)),repeating-linear-gradient(to right,var(--grid) 0 1px,transparent 1px var(--cell-w));background-size:100% calc(100% - var(--row-h));background-position:0 calc(var(--row-h) / 2);background-repeat:no-repeat}.staff-body:after{content:"";position:absolute;top:calc(var(--row-h) / 2);right:0;bottom:calc(var(--row-h) / 2);width:1px;background:var(--barline)}.string-row{position:relative;display:flex;height:var(--row-h)}.string-row:before{content:"";position:absolute;inset:calc(50% - 1px) 0 auto;height:2px;background:var(--string)}.staff-overlay{position:absolute;top:0;left:0;z-index:3;pointer-events:none;overflow:visible}.tie{fill:none;stroke:var(--accent);stroke-width:1.6;stroke-linecap:round}.tie--preview{stroke-dasharray:4 4;opacity:.75}.mark{fill:none;stroke:var(--ink);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.mark-bar{position:fixed;z-index:20;display:flex;gap:4px;padding:4px;border:1px solid var(--bar);border-radius:10px;background:var(--paper);box-shadow:0 2px 8px #16202b24}.mark-button{display:flex;align-items:center;justify-content:center;padding:4px 6px;border-radius:6px;line-height:0}.mark-button svg{fill:none;stroke:var(--ink);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.mark-button.is-active{border-color:var(--accent);background:var(--accent)}.mark-button.is-active svg{stroke:var(--paper)}.mark-button--tie{position:relative;margin-right:4px}.mark-button--tie:after{content:"";position:absolute;top:4px;right:-4px;bottom:4px;width:1px;background:var(--bar)}.cell{position:relative;z-index:2;width:var(--cell-w);height:var(--row-h);touch-action:manipulation;padding:0;border:0;background:transparent;color:var(--ink);font:600 17px/1 ui-monospace,Menlo,monospace;text-align:center;caret-color:var(--accent)}.cell--filled{background:radial-gradient(closest-side,var(--page) 74%,transparent 100%)}.cell:hover{background:radial-gradient(closest-side,rgb(168 73 47 / 10%) 74%,transparent 100%)}.cell:focus{background:radial-gradient(closest-side,var(--page) 78%,transparent 100%);outline:none}.cell::selection{background:#a8492f33}.cell--tie-source{background:radial-gradient(closest-side,var(--page) 78%,transparent 100%);box-shadow:inset 0 0 0 1px var(--accent);border-radius:8px}.cell--tie-target{background:radial-gradient(closest-side,rgb(168 73 47 / 16%) 78%,transparent 100%);box-shadow:inset 0 0 0 1.5px var(--accent);border-radius:8px;cursor:pointer}.cell--tie-cursor,.cell--tie-target:hover{background:radial-gradient(closest-side,rgb(168 73 47 / 32%) 78%,transparent 100%)}.sheet-actions{display:flex;justify-content:center;gap:8px;margin-top:24px}.output{margin-top:20px}.output-pre{margin:10px 0 0;padding:16px;border:1px solid var(--bar);border-radius:10px;background:var(--paper);font:13px/1.45 ui-monospace,Menlo,monospace;overflow-x:auto}.visually-hidden{position:absolute;width:1px;height:1px;clip-path:inset(50%);overflow:hidden}