:root{--cell-w: 36px;--row-h: 34px;--bar-w: calc(var(--cell-w) * 4);--staff-air: 14px;--strip-h: 22px;--paper: #fbf8f1;--page: #ece7dc;--ink: #16202b;--string: #2f3a45;--bar: #b9c2cc;--grid: #dde3e9;--barline: #a3aeb9;--muted: #7d8894;--accent: #a8492f;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}button{padding:7px 12px;border:1px solid var(--bar);border-radius:8px;background:var(--paper);color:var(--ink);font-size:14px;cursor:pointer}button:hover:not(:disabled){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}.edit-hint{margin:0 0 4px;color:var(--accent);font-size:13px}.row-select{position:absolute;inset:2px;z-index:5;padding:0;border:1px dashed transparent;border-radius:10px;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}.group-section{display:flex;align-items:center;padding:10px 0;border-top:1px solid var(--bar)}.group-title{flex:none;width:66px;margin-left:10px;color:var(--muted);font:600 10px/1 ui-monospace,Menlo,monospace;letter-spacing:.09em;text-transform:uppercase}.group-slots{display:flex;flex-wrap:wrap;gap:6px}.group-slot{min-width:32px;height:28px;padding:0 5px;border-style:dashed;border-radius:7px;background:none;color:var(--muted);font:600 13px/1 ui-monospace,Menlo,monospace;font-variant-numeric:tabular-nums}.group-repeat{margin-left:1px;font-weight:500;opacity:.5}.group-slot.is-filled{border-style:solid;background:var(--paper);color:var(--ink)}.group-slot:hover:not(:disabled),.group-slot.is-open{border-color:var(--accent);color:var(--accent)}.group-slot.is-selected,.group-slot.is-selected:hover{border-style:solid;border-color:var(--accent);background:var(--accent);color:#fff}.group-picker{display:flex;flex-direction:column;gap:6px;max-width:240px;padding:5px}.group-picker-section{display:flex;flex-direction:column;gap:4px}.group-picker-title{color:var(--muted);font:600 9px/1 ui-monospace,Menlo,monospace;letter-spacing:.09em;text-transform:uppercase}.group-picker-options{display:flex;flex-wrap:wrap;gap:4px}.group-option{min-width:28px;height:28px;padding:0 6px;border-radius:7px;font:600 13px/1 ui-monospace,Menlo,monospace;font-variant-numeric:tabular-nums}.group-option.is-active{border-color:var(--accent);background:var(--accent);color:#fff}.group-option--clear{color:var(--muted);font-size:12px;letter-spacing:.02em}.staff{position:relative;display:flex;align-items:flex-start;border-top:1px solid var(--bar)}.row-number{display:flex;flex:none;align-self:center;align-items:center;justify-content:center;width:26px;height:26px;margin:0 10px;border:1px solid var(--bar);border-radius:50%;color:var(--muted);font:600 13px/1 ui-monospace,Menlo,monospace;font-variant-numeric:tabular-nums}.staff-scroll{flex:0 1 auto;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}.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{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:30px;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,.live-run{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}.live-menu{display:flex;flex-direction:column;gap:8px;width:210px;padding:12px}.live-menu-label{color:var(--muted);font:600 10px/1 ui-monospace,Menlo,monospace;letter-spacing:.09em;text-transform:uppercase}.live-menu-row{display:flex;align-items:baseline;gap:8px}.live-menu-input{width:90px;padding:6px 8px;border:1px solid var(--bar);border-radius:8px;background:var(--page);color:var(--ink);font:600 18px ui-monospace,Menlo,monospace;font-variant-numeric:tabular-nums}.live-menu-unit,.live-menu-hint{color:var(--muted);font-size:12px}.live-menu-hint{margin:0;line-height:1.35}.live-menu-toggle{display:flex;gap:8px;align-items:center;color:var(--ink);font-size:13px}.live-menu-toggle input{accent-color:var(--accent)}.live-menu-start{border-color:var(--accent);background:var(--accent);color:#fff}.live{--live-head: 28%;--live-scale: 2;--live-lift: calc(12px * var(--live-scale));position:fixed;inset:0;z-index:50;display:flex;flex-direction:column;background:var(--page);color:var(--ink)}.live:focus{outline:none}.live-bar{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center;padding:12px 18px;border-bottom:1px solid var(--bar)}.live--simple .live-bar{position:absolute;z-index:10;top:0;right:0;padding:12px 18px;border:0}.live-title{font:600 17px Georgia,Times New Roman,serif}.live-transport{display:flex;gap:8px;align-items:center}.live-play{min-width:96px}.live-tempo{display:flex;gap:4px;align-items:center;margin-left:8px}.live-tempo button{width:30px;padding:6px 0;font:400 16px/1 ui-monospace,Menlo,monospace}.live-bpm{min-width:74px;text-align:center;font:600 14px ui-monospace,Menlo,monospace;font-variant-numeric:tabular-nums}.live-readout{margin-left:auto;color:var(--muted);font:13px ui-monospace,Menlo,monospace;font-variant-numeric:tabular-nums}.live-viewport{position:relative;flex:1;overflow:hidden}.live-viewport:before{content:"";position:absolute;z-index:4;top:0;bottom:0;left:0;width:120px;background:linear-gradient(to right,var(--page) 45%,transparent);pointer-events:none}.live-stage{position:absolute;top:50%;left:var(--live-head);width:max-content;transform:translateY(calc(-50% + var(--live-lift))) scale(var(--live-scale));transform-origin:left center}.live-track{position:relative;width:max-content;will-change:transform}.live-strip{display:flex}.live-run{position:relative;flex:none}.live-run+.live-run:before{content:"";position:absolute;top:calc(var(--row-h) / 2);bottom:calc(var(--row-h) / 2);left:0;width:2px;background:var(--muted)}.live-run-label{position:absolute;top:-20px;left:3px;color:var(--muted);font:600 9px/1 ui-monospace,Menlo,monospace;letter-spacing:.08em;text-transform:uppercase}.live-cell{position:relative;z-index:2;display:flex;align-items:center;justify-content:center;width:var(--cell-w);height:var(--row-h);color:var(--ink);font:600 17px/1 ui-monospace,Menlo,monospace}.live-now{position:absolute;z-index:1;top:0;bottom:0;border-radius:6px;background:#a8492f29}.live-playhead{position:absolute;z-index:5;top:0;bottom:0;left:var(--live-head);width:2px;background:var(--accent)}.live-playhead:before{content:"";position:absolute;top:0;left:-6px;border-top:8px solid var(--accent);border-right:7px solid transparent;border-left:7px solid transparent}.live-labels{position:absolute;z-index:6;top:50%;left:0;display:flex;flex-direction:column;transform:translateY(calc(-50% + var(--live-lift))) scale(var(--live-scale));transform-origin:left center}.live-progress{height:3px;background:var(--paper)}.live-progress-fill{height:100%;background:var(--accent)}@media(max-width:600px){.live{--live-head: 22%}}.visually-hidden{position:absolute;width:1px;height:1px;clip-path:inset(50%);overflow:hidden}