:root{--c-bg:#03040a;--c-glass:#090e1ad1;--c-glass-2:#0c1322e0;--c-line:#78dcff2e;--c-line-hot:#6cf0ff8c;--c-cyan:#6cf0ff;--c-magenta:#ff5ac8;--c-amber:#ffb060;--c-text:#dff2ff;--c-muted:#b4dcf080;--font:"IBM Plex Mono", "SF Mono", ui-monospace, Menlo, monospace;--gas:.35;--radius:12px;--bar:46px;--panel-w:300px;--hit:40px}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{background:var(--c-bg);width:100%;height:100%;color:var(--c-text);font-family:var(--font);overscroll-behavior:none;-webkit-text-size-adjust:100%;overflow:hidden}.bck-stage{touch-action:none;-webkit-user-select:none;user-select:none;width:100%;height:100%;position:relative;overflow:hidden}.bck-stage>div:first-child{width:100%;height:100%}.bck-rim{pointer-events:none;position:absolute;inset:0;box-shadow:inset 0 0 120px #000000bf,inset 0 0 300px #501e5a2e}.bck-gas{pointer-events:none;opacity:calc(var(--gas) * .35);background:radial-gradient(120% 80% at 50% 120%,#ff5ac847,#0000 60%);transition:opacity 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9px;font-size:10px}.bck-chip-button{cursor:pointer;min-height:26px;font-family:inherit}.bck-chip-button.is-on{color:var(--c-cyan);border-color:var(--c-line-hot)}.bck-panel{flex:0 0 var(--panel-w);width:var(--panel-w);border-radius:var(--radius);background:var(--c-glass-2);border:1px solid var(--c-line);-webkit-backdrop-filter:blur(20px)saturate(1.5);backdrop-filter:blur(20px)saturate(1.5);pointer-events:auto;flex-direction:column;min-height:0;display:flex;overflow:hidden;box-shadow:0 18px 50px #00000080}.bck-panel-head{border-bottom:1px solid var(--c-line);flex:none;justify-content:space-between;align-items:center;padding:10px 12px;display:flex}.bck-panel-title{letter-spacing:.22em;text-transform:uppercase;color:var(--c-cyan);font-size:11px;font-weight:400}.bck-panel-close{font:inherit;cursor:pointer;width:28px;height:28px;color:var(--c-muted);background:0 0;border:1px solid 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100%;order:3;justify-content:flex-start;padding-bottom:2px}.bck-topbar-id{flex:auto}.bck-body{padding:8px}.bck-panel{max-height:min(52vh,460px);position:absolute;bottom:8px;left:8px;right:8px}.bck-pass{display:none}.bck-tool{min-width:48px}.bck-piece-grid{grid-template-columns:repeat(auto-fill,minmax(96px,1fr))}}@media (height<=460px){.bck-tool-name{display:none}.bck-tool{min-width:44px}.bck-panel{max-height:calc(100% - 16px)}}.bck-note strong{color:var(--c-cyan);font-weight:400}.bck-meter{flex-direction:column;gap:4px;margin:8px 0 10px;display:flex}.bck-meter-row{grid-template-columns:44px 1fr;align-items:center;gap:8px;display:grid}.bck-meter-label{letter-spacing:.08em;text-transform:uppercase;color:var(--bck-dim,#7f93a8);font-size:10px}.bck-meter-track{background:#78aadc1f;border-radius:3px;height:6px;position:relative;overflow:hidden}.bck-meter-fill{border-radius:3px;width:0;height:100%;transition:width 90ms linear;display:block}.bck-meter-bass{background:linear-gradient(90deg,#2a4a8a,#5aa8ff)}.bck-meter-mid{background:linear-gradient(90deg,#7a3a8a,#d06fe0)}.bck-meter-treble{background:linear-gradient(90deg,#2a7a6a,#5ae0c0)}.bck-meter-beat{opacity:0;background:linear-gradient(90deg,#ff5fa8,#fff0c0);width:100%;height:100%;display:block}html,body,#root{background:#03040a;width:100%;height:100%;margin:0;overflow:hidden}