:root{color-scheme:light;--bg:#fffaf7;--surface:#fffcfa;--ink:#4d3935;--muted:#947e77;--line:#e6d6cf;--peach:#f5a78b;--coral:#e68f73;--note:#f4ae91;--vibrato:#bfe0ac;--vibrato-ink:#3c5a34;--row:32px;--key:92px;--ruler:44px;font-family:"Segoe UI",Arial,sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}
*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit;color:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.38}button,input,select{-webkit-tap-highlight-color:transparent}button:focus-visible,input:focus-visible,select:focus-visible,a:focus-visible,[tabindex]:focus-visible{outline:3px solid #b86248;outline-offset:3px}button{touch-action:manipulation}svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.icon-library{position:absolute;width:0;height:0;overflow:hidden}[hidden]{display:none!important}.app{max-width:2000px;margin:auto;padding:0 26px 18px}.header{height:88px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:12px;white-space:nowrap}.brand h1{margin:0}.brand h1 img{display:block;height:38px;width:auto}.beta{font-size:14px;color:var(--muted);align-self:flex-start;margin-top:5px}.project-name{font-size:17px;max-width:30%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.button{border:1px solid var(--line);background:var(--surface);border-radius:12px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px 18px;font-size:14px;font-weight:500;min-height:44px;color:inherit;text-decoration:none;white-space:nowrap}.primary{background:var(--peach);border-color:transparent}.button:hover:not(:disabled),.icon-button:hover:not(:disabled){filter:brightness(.965)}.toolbar{display:flex;align-items:center;gap:0;border:1px solid #d8c5bc;border-radius:15px;padding:18px 16px;background:var(--surface);min-height:94px}.control-group{display:flex;gap:12px;align-items:center;padding:0 20px;border-right:1px solid var(--line);white-space:nowrap;font-size:14px}.control-group:first-child{padding-left:0}.control-group:last-child{padding-right:0;border:0}.icon-button{height:40px;width:40px;border:1px solid var(--line);border-radius:10px;display:inline-flex;align-items:center;justify-content:center;background:transparent;flex-shrink:0}.icon-button svg{width:20px;height:20px}.play-button{width:58px;height:58px;border-radius:50%;background:var(--coral);border:none;color:white;display:grid;place-items:center;flex-shrink:0}.play-button svg{width:25px;height:25px}.play-button:hover:not(:disabled){background:#d97b60}.play-button:disabled{opacity:.65}.time{font-size:18px;font-variant-numeric:tabular-nums;min-width:96px;margin-left:6px;letter-spacing:-.5px}.project-settings input{width:63px;border:1px solid #d9c8c0;background:transparent;border-radius:9px;height:43px;padding:8px 5px 8px 11px;font-size:17px;appearance:textfield}.project-settings input::-webkit-inner-spin-button{appearance:none}.grid-setting select{height:43px;min-width:78px;background:transparent;border:1px solid #d9c8c0;border-radius:9px;padding:8px 10px;font-size:16px}.tools{gap:12px}.tool-button{background:var(--peach);border-color:transparent;padding:10px 14px;white-space:nowrap}.tool-button.vibrato-tool{background:var(--vibrato);color:var(--vibrato-ink)}.tool-label{display:grid;transform:translateY(-1px)}.tool-label .current,.tool-label .widest{grid-area:1/1}.tool-label .widest{visibility:hidden}.file{gap:10px}.compare{margin-left:auto;gap:9px}.compare label{white-space:nowrap}.compare svg{width:25px;height:25px}.compare input{appearance:none;position:relative;width:40px;height:24px;margin:0;border-radius:20px;background:#d4c9c5;border:0;cursor:pointer;transition:background .15s}.compare input::before{content:"";position:absolute;width:18px;height:18px;background:white;left:3px;top:3px;border-radius:50%;transition:transform .15s}.compare input:checked{background:var(--coral)}.compare input:checked::before{transform:translateX(16px)}.compare input:disabled{opacity:.5;cursor:default}.zoom{gap:10px}.zoom output{min-width:42px;text-align:center;font-variant-numeric:tabular-nums}.track-info{display:flex;justify-content:space-between;align-items:center;gap:18px;min-height:54px;padding:0 8px;font-size:13px}.track-name{min-width:0;display:flex;align-items:center;gap:10px}.track-name svg{width:16px;height:16px;color:#b57e68}.track-name #file-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:42vw}.track-name #file-detail{color:var(--muted);white-space:nowrap;font-size:12px}.privacy{color:var(--muted);white-space:nowrap;font-size:12px;display:flex;align-items:center;gap:7px}.status-dot{width:6px;height:6px;background:#9daf90;border-radius:50%}.editor{position:relative;border:1px solid #cdb7ac;border-radius:14px;overflow:hidden;background:var(--surface)}.roll-viewport{position:relative;height:clamp(350px,calc(100dvh - 350px),800px);overflow:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#d9c3b8 #fffaf7}.roll-viewport:focus-visible{outline:none}.editor:has(>.roll-viewport:focus-visible){border-color:#cdb7ac}.roll-content{position:relative;isolation:isolate;min-width:100%;min-height:100%}#grid-canvas{position:sticky;left:0;top:0;display:block;pointer-events:none}.notes-layer{position:absolute;left:var(--key);top:var(--ruler);right:0;bottom:0;touch-action:none;cursor:crosshair;isolation:isolate}.piano{position:sticky;left:0;width:var(--key);z-index:4;background:var(--surface);border-right:1px solid #cbb6ac}.piano-key{position:absolute;height:var(--row);left:0;width:100%;display:flex;align-items:center;justify-content:flex-end;border:0;border-bottom:1px solid #e0d2cb;padding:0 14px 0 0;background:#fffaf6;font-size:11px;color:#80665c;cursor:pointer}.piano-key.black{background:#f5eee9}.piano-key.black::before{content:"";position:absolute;left:0;top:0;width:47%;height:calc(var(--row) - 2px);background:#554944;border-radius:0 3px 3px 0}.piano-key.c-note{color:#674638;font-weight:650;border-bottom-color:#c7afa3}.piano-key:hover,.piano-key.active{background:#f4c5af}.ruler{position:sticky;top:0;height:var(--ruler);margin-left:var(--key);background:#fffcfa;border-bottom:1px solid #dbc8be;z-index:5;cursor:pointer;touch-action:none;overflow:hidden}.ruler:focus-visible{outline:none;background:#fffcfa}.bar-label{position:absolute;top:0;height:100%;padding:10px 10px;font-size:11px;color:#72564b;border-left:1px solid #d8c3b8}.ruler-tick{position:absolute;height:7px;bottom:0;border-left:1px solid #d6c2b7}.corner{position:sticky;top:0;left:0;width:var(--key);height:var(--ruler);background:#fcf6f1;border-bottom:1px solid #dbc8be;border-right:1px solid #cbb6ac;z-index:6;display:grid;place-items:center;color:#9a8378;font-size:10px}.pitch-note{position:absolute;min-width:4px;height:calc(var(--row) - 6px);border:1px solid #bf785c;border-radius:6px;background:var(--note);color:#623d2f;touch-action:none;cursor:grab;user-select:none;display:flex;align-items:center;overflow:hidden;font-size:11px;font-weight:600;padding:0 12px;white-space:nowrap;box-shadow:inset 0 1px 0 #ffffff40}.pitch-note.selected{border-color:#9e5037;background:#f19d7b;box-shadow:0 0 0 2px #bd705b25;z-index:2}.pitch-note.dragging{cursor:grabbing}.pitch-note.small{padding:0}.pitch-note.small .note-name{visibility:hidden}.note-edge{position:absolute;top:0;bottom:0;width:9px;cursor:ew-resize;z-index:2}.note-edge.left{left:0}.note-edge.right{right:0}.note-edge::after{content:"";position:absolute;top:6px;bottom:6px;width:2px;background:#a35f45;border-radius:2px;left:3px}.pitch-note.small .note-edge{width:3px}.pitch-note.small .note-edge::after{display:none}.pitch-note{transition:opacity .15s}.pitch-note.vibrato-note{border-color:#7fae70;background:var(--vibrato);color:var(--vibrato-ink)}.pitch-note.vibrato-note.selected{border-color:#557d4c;background:#a6d190;box-shadow:0 0 0 2px #557d4c25}.pitch-note.vibrato-note .note-edge::after{background:#5c8a52}.notes-layer[data-tool="pitch"] .pitch-note.vibrato-note{opacity:.4;pointer-events:none}.notes-layer[data-tool="vibrato"] .pitch-note:not(.vibrato-note){opacity:.4;pointer-events:none}.playhead{position:absolute;top:var(--ruler);bottom:0;width:1px;background:#c67254;z-index:3;pointer-events:none}.playhead span{position:absolute;top:0;left:-4px;width:9px;height:9px;clip-path:polygon(0 0,100% 0,50% 100%);background:#c67254}.empty-state{position:absolute;z-index:7;inset:44px 0 59px var(--key);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;pointer-events:none;padding:24px}.empty-state>*{pointer-events:auto}.empty-icon{width:62px;height:62px;background:#fce7dc;border-radius:20px;display:grid;place-items:center;margin-bottom:19px;color:#c27d60}.empty-icon svg{width:30px;height:30px}.empty-state h2{font-size:24px;letter-spacing:-.6px;font-weight:600;margin:0 0 10px;background:#fffcfae8;border-radius:8px}.empty-state p{font-size:14px;color:#8a7167;margin:0 0 23px;background:#fffcfae8}.empty-state .formats{font-size:11px;color:#a0887d;margin-top:14px;background:#fffcfae8}.drop-overlay{position:absolute;inset:8px;z-index:15;border:2px dashed #d48f70;border-radius:10px;background:#fff1e9ed;display:grid;place-items:center;font-size:24px;pointer-events:none}.editor-status{height:59px;display:flex;align-items:center;gap:16px;padding:0 20px;border-top:1px solid #dbc8be;font-size:12px;background:var(--surface)}.editor-status strong{font-weight:650;margin-left:8px}.status-divider{height:23px;border-left:1px solid #d8c4ba}.delete-button{border:0;width:30px;height:30px}.delete-button svg{width:16px;height:16px}.status-message{margin-left:auto;color:var(--muted);font-size:11px;text-align:right}.status-message.error{color:#b9432d}.app-footer{display:flex;align-items:center;justify-content:space-between;gap:20px;color:#8b7268;font-size:12px;min-height:52px;padding:0 5px}.app-footer p{margin:0;line-height:1.8}.app-footer p span{margin:0 7px}kbd{font:inherit}.engine-note{font-size:10px;color:#a18b80;margin:0 5px;line-height:1.6}
.header-actions{display:flex;align-items:center;gap:10px}.how-to span,.donate span{transform:translateY(-1px)}
.guide{border:1px solid #cdb7ac;border-radius:16px;padding:0;background:var(--surface);color:var(--ink);width:min(760px,calc(100vw - 36px));max-height:min(760px,calc(100dvh - 72px));overflow:hidden;flex-direction:column;box-shadow:0 18px 50px #4d393526}
.guide[open]{display:flex}
.guide::backdrop{background:#4d393559}
.guide-head{display:flex;align-items:center;gap:14px;padding:21px 26px;border-bottom:1px solid var(--line);flex-shrink:0}
.guide-head h2{margin:0;font-size:19px;font-weight:600;letter-spacing:-.3px}
#guide-close{margin-left:auto;border:0}
.guide-body{overflow-y:auto;padding:22px 26px 28px;scrollbar-width:thin;scrollbar-color:#d9c3b8 transparent}
.guide-body h3{margin:30px 0 14px;font-size:12px;font-weight:650;text-transform:uppercase;letter-spacing:.8px;color:#a8887a}
.guide-lede{margin:0;line-height:1.75;color:#6b544d;font-size:15px}
.guide-steps{list-style:none;margin:0;padding:0;counter-reset:step}
.guide-steps li{counter-increment:step;position:relative;padding-left:44px;margin-bottom:17px;line-height:1.7}
.guide-steps li:last-child{margin-bottom:0}
.guide-steps li::before{content:counter(step);position:absolute;left:0;top:0;width:28px;height:28px;border-radius:50%;background:#fce7dc;color:#b4674a;display:grid;place-items:center;font-weight:650;font-size:13px}
.guide-steps strong,.guide-notes strong{font-weight:650}
.guide-keys{display:grid;grid-template-columns:auto 1fr;gap:11px 20px;margin:0;align-items:baseline}
.guide-keys dt{justify-self:start;display:flex;gap:4px;flex-wrap:wrap}
.guide-keys dd{margin:0;color:#7a635b;line-height:1.5}
.guide kbd{display:inline-block;border:1px solid var(--line);border-bottom-width:2px;border-radius:6px;padding:2px 7px;background:#fffaf6;font-size:12px;line-height:1.5;white-space:nowrap;color:#6b544d}
.guide-notes{margin:0;padding-left:20px;color:#7a635b;line-height:1.75}
.guide-notes li{margin-bottom:8px}
.guide-notes li:last-child{margin-bottom:0}
@media(min-width:1500px){.toolbar{padding:20px}.control-group{padding:0 24px;gap:16px}.header{height:90px}.brand h1 img{height:41px}.roll-viewport{height:calc(100dvh - 350px)}}
@media(max-width:1250px){.app{padding:0 18px 14px}.control-group{padding:0 12px;gap:9px}.file{gap:7px}.toolbar{padding:14px 12px}.time{font-size:16px;min-width:88px}.tool-button{padding:10px}.compare svg{display:none}.icon-button{width:35px;height:38px}.project-settings .unit{display:none}.play-button{width:49px;height:49px}.tools{gap:7px}.zoom{gap:6px}}
@media(max-width:1050px){.toolbar{flex-wrap:wrap;row-gap:16px}.compare{margin-left:0;border-right:0}.zoom{margin-left:auto}.tools,.file{border-right:0}.transport{padding-right:18px}.roll-viewport{height:calc(100dvh - 390px);min-height:350px}.project-name{font-size:14px}.brand h1 img{height:34px}.toolbar .control-group{flex-shrink:0}.privacy{font-size:10px}}
@media(max-width:700px){:root{--key:70px;--row:32px}.app{padding:0 10px 12px}.header{height:80px;gap:8px}.brand{gap:7px}.brand h1 img{height:29px}.beta{font-size:10px}.project-name{display:none}.donate,.how-to{padding:10px 12px;font-size:12px;min-height:40px}.donate svg,.how-to svg{width:17px}.header-actions{gap:7px}.guide-head{padding:16px 18px}.guide-body{padding:18px 18px 22px}.guide-steps li{padding-left:38px}.guide-keys{grid-template-columns:1fr;gap:3px 0}.guide-keys dd{margin:0 0 9px}.toolbar{padding:12px;gap:13px 0;border-radius:12px}.control-group{padding:0 10px;font-size:12px;gap:7px}.transport{width:56%;border:0}.project-settings{width:44%;border:0;padding-right:0;justify-content:flex-end}.play-button{width:42px;height:42px}.time{min-width:80px;font-size:15px;margin:0}.project-settings input{height:38px;width:51px;font-size:15px}.grid-setting{padding-left:0;width:36%;border:0}.grid-setting select{height:37px;min-width:64px;padding:5px;font-size:13px}.tools{width:64%;padding-right:0;justify-content:flex-end}.file{width:100%;padding:0;border-right:0;justify-content:flex-end;gap:9px}.file .icon-button{width:34px;height:34px}.tool-button{min-height:37px;font-size:12px;padding:8px;gap:6px}.tool-button svg{width:17px;height:17px}.tools .icon-button{height:33px;width:31px}.compare{padding-left:0;width:45%;gap:8px}.compare svg{display:block;width:19px;height:19px}.zoom{width:55%;justify-content:flex-end}.zoom .icon-button{width:31px;height:31px}.zoom output{font-size:12px}.track-info{min-height:51px;padding:0 3px;gap:8px}.privacy{font-size:0;gap:0}.status-dot{width:6px;height:6px}.track-name{gap:7px;flex-wrap:wrap}.track-name #file-name{font-size:12px;max-width:65vw}.track-name #file-detail{font-size:10px}.editor{border-radius:11px}.roll-viewport{height:420px;min-height:350px}.piano-key{font-size:10px;padding-right:10px}.empty-state{padding:16px;inset:44px 0 78px var(--key)}.empty-icon{width:51px;height:51px;margin-bottom:16px}.empty-state h2{font-size:19px;max-width:210px}.empty-state p{font-size:12px;max-width:210px;line-height:1.7;margin-bottom:16px}.empty-state .formats{font-size:9px;line-height:1.8;max-width:190px}.empty-state .button{font-size:12px;padding:10px 15px}.editor-status{height:78px;padding:10px 12px;gap:10px;flex-wrap:wrap;font-size:11px}.status-message{flex-basis:100%;text-align:left;font-size:10px;margin-top:-7px}.status-divider{height:16px}.editor-status strong{margin-left:4px}.app-footer{padding:12px 3px;align-items:flex-start;gap:12px;font-size:10px}.app-footer p span{margin:0 3px}.engine-note{font-size:9px}.formats{max-width:100%}}
:root{--row:36px;--key:112px}.roll-viewport{height:clamp(350px,calc(100dvh - 400px),800px)}.piano-key,.bar-label{font-size:12px}.editor-status{font-size:13px}.track-info{font-size:14px}.app-footer{font-size:13px}
@media(min-width:1500px){:root{--row:40px;--key:124px}.control-group{font-size:16px}.button{font-size:16px}.time{font-size:20px;min-width:110px}.project-name{font-size:20px}.piano-key,.bar-label{font-size:14px}.editor-status{font-size:15px}.app-footer{font-size:14px}.track-info{font-size:15px}.privacy{font-size:14px}.status-message{font-size:12px}.pitch-note{font-size:13px}.toolbar .control-group{padding-left:18px;padding-right:18px}.toolbar .control-group:first-child{padding-left:0}.toolbar .control-group:last-child{padding-right:0}}
@media(max-width:1050px){.roll-viewport{height:calc(100dvh - 430px)}}
@media(max-width:700px){:root{--key:70px;--row:32px}.roll-viewport{height:420px}.piano-key{font-size:10px}.editor-status{font-size:11px}.app-footer{font-size:10px}}
#grid-canvas{position:absolute}.piano{position:absolute}.ruler{position:absolute;left:var(--key);margin-left:0}.corner{position:absolute}
@media(max-width:360px){.brand h1 img{height:25px}.brand .beta{display:none}.donate,.how-to{font-size:11px;padding:9px}.how-to span{display:none}.transport{gap:6px}.transport .icon-button{width:28px}.play-button{width:36px;height:36px}.time{font-size:13px;min-width:72px}.tools .tool-button span{display:none}.tools .tool-button{width:35px}.project-settings{gap:5px;font-size:11px}.project-settings input{width:45px}.empty-state h2{font-size:17px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}