:root{color-scheme:dark;font-family:Inter,'Hiragino Kaku Gothic ProN','Noto Sans JP',sans-serif;color:#edf0e8;background:#161817;font-synthesis:none;--acid:#ddfa69}*{box-sizing:border-box}body{margin:0}main{max-width:1080px;margin:0 auto;padding:36px 32px}button,input{font:inherit}button{cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation}button:focus-visible,input:focus-visible{outline:3px solid var(--acid);outline-offset:4px}button:disabled{opacity:.35;cursor:default}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px}h1{margin:0;font-size:32px;font-weight:850;letter-spacing:-1.5px}h1 span{font-weight:400;color:#b3baac}h1 i{font-size:9px;color:var(--acid);font-style:normal;vertical-align:top;margin:10px 0 0 9px;display:inline-block}.toolbar{display:flex;gap:20px;align-items:center;padding:18px 0;border-top:1px solid #333830;border-bottom:1px solid #333830;margin-bottom:24px}.volume{font-size:11px;color:#b1b8aa;display:flex;align-items:center;gap:10px}.volume input{accent-color:var(--acid);width:110px}.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.pad{--accent:#ddfa69;background:#252c20;border:1px solid #4a5936;border-bottom:4px solid #404d2f;color:#e7f3d5;border-radius:9px;padding:16px 18px;min-height:132px;text-align:left;display:flex;flex-direction:column;justify-content:space-between;gap:16px;position:relative;transition:background .08s,transform .08s;user-select:none}:where(.pad-group:nth-child(4n+2)) .pad{--accent:#f1bb86;background:#30281f;border-color:#61513b;color:#f4dfc7}:where(.pad-group:nth-child(4n+3)) .pad{--accent:#bdb0f1;background:#282435;border-color:#504464;color:#e0d8f6}:where(.pad-group:nth-child(4n+4)) .pad{--accent:#91cdd4;background:#1d2c2f;border-color:#39595e;color:#cce8ed}.pad-group{display:grid;min-width:0;gap:inherit}.pad-group.pair{grid-column:span 2;grid-template-columns:repeat(2,minmax(0,1fr))}.pad{min-width:0}.pad:hover{filter:brightness(1.2)}.pad:active,.pad.hit{transform:translateY(3px);border-bottom-width:1px;background:var(--accent);color:#151914}.pad.playing{box-shadow:inset 0 0 0 1px var(--accent),0 0 16px #0003}.pad-top{display:flex;justify-content:space-between;width:100%;font:10px monospace;letter-spacing:1px;opacity:.65}.pad-title{font-size:16px;font-weight:750;line-height:1.5;overflow-wrap:anywhere}.pad-bottom{display:flex;justify-content:space-between;align-items:center;font:10px monospace;opacity:.7}.led{width:5px;height:5px;border-radius:50%;background:currentColor;opacity:.3}.playing .led{opacity:1;box-shadow:0 0 7px currentColor}#error{color:#ffb497;font-size:12px}[hidden]{display:none!important}@media(max-width:720px){main{padding:25px 20px}.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.pad{padding:13px;min-height:123px}.pad-title{font-size:14px}.toolbar{gap:14px}.volume input{width:75px}}@media(max-width:480px){main{padding:23px 15px}h1{font-size:28px}header{margin-bottom:23px}.toolbar{flex-wrap:wrap;gap:13px;justify-content:space-between;padding:15px 0;margin-bottom:18px}.volume input{width:130px}.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.pad{min-height:126px;padding:14px}.pad-title{font-size:14px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}



.toolbar{justify-content:space-between;flex-wrap:wrap}.replace-option{display:inline-flex;align-items:center;gap:8px;min-height:32px;color:#b1b8aa;font-size:12px;cursor:pointer}.replace-option input{accent-color:var(--acid);width:16px;height:16px;margin:0}