:root{color-scheme:dark;--line:#454b52;--cyan:#80edf2;--gold:#dcc077}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at top,#283039,#101215 65%);color:#edf0f2;font:16px/1.5 'Segoe UI',sans-serif}header{display:flex;align-items:center;gap:24px;padding:14px 24px;border-bottom:1px solid var(--line)}a{color:var(--cyan)}h1{font:700 clamp(24px,4vw,38px) Georgia,serif;margin:0}h2{font:700 23px Georgia,serif}.badge{margin-left:auto;color:var(--gold);letter-spacing:.15em;font-size:14px}main{max-width:1400px;margin:auto;padding:18px 24px}.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center}button,select{font:inherit;border:1px solid #65717c;background:#242c34;color:#f4f6f8;padding:10px 14px;min-height:44px;cursor:pointer;border-radius:4px}button:hover{border-color:var(--cyan)}button:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}button[aria-pressed=true],#start{background:var(--cyan);color:#082025;border-color:var(--cyan);font-weight:700}button:disabled{opacity:.5;cursor:wait}label{display:flex;align-items:center;gap:10px}input[type=range]{accent-color:var(--cyan);min-width:70px;width:120px}input[type=checkbox]{width:20px;height:20px;accent-color:var(--cyan)}#status{color:var(--gold);min-height:24px;margin:12px 0}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:18px}.stage-wrap{min-width:0}#stage{position:relative;width:100%;aspect-ratio:1.38;overflow:hidden;border:2px solid #57606a;background:radial-gradient(ellipse at center,#353c42,#191e23 75%);background-image:linear-gradient(#ffffff05 1px,transparent 1px),linear-gradient(90deg,#ffffff05 1px,transparent 1px),radial-gradient(ellipse at center,#353c42,#191e23 75%);background-size:5% 5%,5% 5%,100% 100%;isolation:isolate}.stage-label{position:absolute;top:10px;width:100%;text-align:center;font-size:12px;letter-spacing:.14em;color:#b5bdc4;pointer-events:none}.throne{position:absolute;bottom:3%;left:45%;width:10%;padding:6px;text-align:center;border:1px dashed #98a4ad;font-size:12px;color:#b5bdc4}.drum{position:absolute;transform:translate(-50%,-50%);aspect-ratio:1;padding:0;border-radius:50%;border:5px solid #9da5ab;min-height:0;background:radial-gradient(circle at 43% 35%,#e7e1ce,#c9c4b7 58%,#928e84 73%,#e3e2dc 75%,#6f777b 81%);box-shadow:0 7px 0 #151a1e,0 12px 20px #0009;color:#252a2d;touch-action:none;user-select:none;display:flex;flex-direction:column;align-items:center;justify-content:center;font-weight:700;line-height:1.15;z-index:2}.drum.cymbal{border:2px solid #b79442;background:repeating-radial-gradient(circle at center,#d4b15f 0 2px,#b99047 3px,#e0bf72 4px);box-shadow:0 6px 0 #715927,0 12px 18px #0008;color:#33260c;z-index:3}.drum.kick{border-radius:24%;background:linear-gradient(110deg,#401b13,#b85739 25%,#6d291b 70%,#241411);color:#fff1d2;z-index:1;aspect-ratio:1.05;border:5px solid #969b9f}.drum.cowbell{border-radius:12%;background:linear-gradient(120deg,#535d65,#13171b);color:#e8e9e9;border:3px solid #7b878f;aspect-ratio:1.3}.drum span{font-size:clamp(11px,1.5vw,17px);text-shadow:0 1px #ffffff40}.drum small{font-size:clamp(11px,1.3vw,14px);margin-top:5px}.drum.selected{outline:3px solid var(--cyan);outline-offset:3px}.drum.hit{filter:brightness(1.45);box-shadow:0 0 30px #80edf2}.moving .drum{cursor:grab}.moving .drum:active{cursor:grabbing}.bell-zone{position:absolute;top:8%;left:36%;width:28%;height:28%;border:1px solid #594415;border-radius:50%;font-size:10px!important;display:grid;place-items:center;background:#efce8199}.performance{display:flex;gap:14px;flex-wrap:wrap;margin-top:12px;padding:12px;background:#151a1f;border:1px solid var(--line)}aside{padding:18px;background:#161b20;border:1px solid var(--line)}aside h2{margin:0 0 16px}aside label{display:flex;flex-direction:column;align-items:stretch;gap:4px;margin:12px 0}aside input[type=range],aside select{width:100%}#description,.hint{font-size:14px;color:#b6c1cb}#test{width:100%}details{margin-top:24px;border:1px solid var(--line);padding:14px;background:#13181d}summary{cursor:pointer;color:var(--cyan);font-weight:700;min-height:30px}.help{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.help p{color:#bec8d1;font-size:15px}footer{padding:20px 24px;color:#a0aab3}@media(max-width:900px){.workspace{grid-template-columns:1fr}aside{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}aside h2,aside .hint,#description{grid-column:1/-1}.help{grid-template-columns:1fr}.badge{display:none}}@media(max-width:500px){header{padding:12px;gap:12px}header>a{font-size:12px}main{padding:12px}#stage{aspect-ratio:1.05}.drum{border-width:3px}.drum span{font-size:11px}.drum small{font-size:11px;margin-top:2px}.bell-zone{font-size:8px!important}.stage-label{font-size:9px}.performance{gap:10px}.performance label{flex-wrap:wrap;font-size:14px}aside{padding:12px}.toolbar button{flex:1;font-size:14px}.toolbar label{width:100%}.throne{width:16%;left:42%;font-size:10px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}}
/* Generated overhead instrument atlas; hit geometry stays independent. */
.drum:not(.cowbell){background-image:url('assets/kit-atlas.webp');background-size:200% 200%;background-position:0 100%;background-color:transparent;border:0;box-shadow:none;border-radius:0;filter:drop-shadow(0 8px 7px #0009)}.drum.cymbal{background-position:100% 0}.drum.kick{background-position:100% 100%;color:#fff1d2}.drum.sound-snare{background-position:0 0}.drum span:not(.bell-zone),.drum small{padding:2px 5px;background:#f1e9d9cc;border-radius:3px;color:#272421;text-shadow:none}.drum.kick span,.drum.kick small{background:#151719de;color:#fff1d2}.drum.hit{filter:brightness(1.35) drop-shadow(0 0 12px #80edf2)}.drum.selected{outline-offset:0;outline-style:dashed}.bell-zone{top:28%;left:37%;width:26%;height:26%;background:#30250ac9;color:#ffe9ac!important;font-size:10px!important;z-index:4}.drum.sound-ride>span:first-child{margin-top:28%}.drum.sound-ride small{margin-top:2px}@media(max-width:500px){.bell-zone{font-size:8px!important}.drum span:not(.bell-zone){padding:2px;font-size:10px}}

.expand-kit{grid-column:1/-1;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:18px}.expand-kit h2{margin-bottom:12px}.expand-kit button,#remove-piece{width:100%;margin-top:8px}.expand-kit .hint{margin:8px 0}#remove-piece:disabled{cursor:default}.drum span:not(.bell-zone){max-width:90%;overflow-wrap:anywhere}

.groove-panel,.visual-panel{padding:18px;border:1px solid var(--line);background:#161c22;margin:16px 0}.groove-heading{display:flex;align-items:center;justify-content:space-between;gap:16px}.groove-heading h2,.visual-panel h2{margin:0 0 12px}.groove-heading strong{color:var(--cyan);font-variant-numeric:tabular-nums}.groove-settings,.visual-controls{display:flex;flex-wrap:wrap;gap:14px;align-items:end}.groove-settings label,.visual-controls label{display:flex;flex-direction:column;align-items:start;gap:5px;font-size:14px}.groove-settings label.inline,.visual-controls label.inline{flex-direction:row;align-items:center;min-height:44px}input[type=number],input[type=color]{background:#242c34;color:#f4f6f8;border:1px solid #65717c;border-radius:3px;min-height:44px;font:inherit;padding:8px;width:95px}input[type=color]{padding:3px;width:65px}.groove-buttons{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0;align-items:center}#record-loop{border-color:#ef6c88;color:#ffc0d0}#record-loop.recording{background:#963149;color:white}#take-count{font-size:14px;color:var(--gold);margin-left:auto}#transport-status{font-size:14px;color:#ccd5dd;margin-bottom:12px;min-height:24px}.beat-lights{display:flex;gap:8px;margin-bottom:12px}.beat-lights i{height:8px;flex:1;background:#343e47;border-radius:2px}.beat-lights i.active{background:var(--cyan);box-shadow:0 0 12px var(--cyan)}#take-map{width:100%;height:110px;background:#0e1419;border:1px solid #3a454f;display:block}.groove-panel .hint{margin-bottom:0}.visual-panel{margin-top:12px}.visual-panel .hint{margin-bottom:0}#kit-fx{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:8}.drum.hit{filter:brightness(var(--hit-brightness,1.35)) drop-shadow(0 0 12px var(--fx-color,#80edf2))}#stage.clock-pulse{box-shadow:inset 0 0 45px var(--fx-color,#80edf2)}@media(max-width:600px){.groove-heading{display:block}.groove-settings label{flex:1;min-width:120px}.groove-settings select{width:100%}.groove-buttons button{flex:1;min-width:125px}#take-count{width:100%;margin:0}.visual-controls label{flex:1;min-width:120px}.groove-panel,.visual-panel{padding:12px}.groove-heading strong{display:block;margin-bottom:12px}}

.kit-picker{display:flex;flex-wrap:wrap;align-items:center;gap:12px 24px;padding:16px 18px;border:1px solid var(--line);background:#191f25;margin-top:16px}.kit-picker label{font-weight:700}.kit-picker p{flex:1;min-width:240px;margin:0;color:var(--gold)}.kit-picker>.hint{width:100%}.kit-picker select{min-width:210px}
#stage[data-kit="maple"] .drum{background-image:url("assets/maple-drum.svg");background-size:100% 100%;background-position:center;background-color:transparent;border:0;box-shadow:none;filter:drop-shadow(0 8px 7px #0009)}
#stage[data-kit="maple"] .drum.sound-snare{background-image:url("assets/maple-snare.svg")}
#stage[data-kit="maple"] .drum.kick{background-image:url("assets/maple-kick.svg")}
#stage[data-kit="maple"] .drum.cymbal{background-image:url("assets/maple-cymbal.svg")}
#stage[data-kit="maple"] .drum.cowbell{background-image:url("assets/maple-cowbell.svg")}
#stage[data-kit="maple"] .drum.hit{filter:brightness(var(--hit-brightness,1.35)) drop-shadow(0 0 12px var(--fx-color,#80edf2))}
#stage[data-kit="jazz"] .drum{background-image:url("assets/jazz-drum.svg");background-size:100% 100%;background-position:center;background-color:transparent;border:0;box-shadow:none;filter:drop-shadow(0 8px 7px #0009)}
#stage[data-kit="jazz"] .drum.sound-snare{background-image:url("assets/jazz-snare.svg")}
#stage[data-kit="jazz"] .drum.kick{background-image:url("assets/jazz-kick.svg")}
#stage[data-kit="jazz"] .drum.cymbal{background-image:url("assets/jazz-cymbal.svg")}
#stage[data-kit="jazz"] .drum.cowbell{background-image:url("assets/jazz-cowbell.svg")}
#stage[data-kit="jazz"] .drum.hit{filter:brightness(var(--hit-brightness,1.35)) drop-shadow(0 0 12px var(--fx-color,#80edf2))}
#stage[data-kit="arena"] .drum{background-image:url("assets/arena-drum.svg");background-size:100% 100%;background-position:center;background-color:transparent;border:0;box-shadow:none;filter:drop-shadow(0 8px 7px #0009)}
#stage[data-kit="arena"] .drum.sound-snare{background-image:url("assets/arena-snare.svg")}
#stage[data-kit="arena"] .drum.kick{background-image:url("assets/arena-kick.svg")}
#stage[data-kit="arena"] .drum.cymbal{background-image:url("assets/arena-cymbal.svg")}
#stage[data-kit="arena"] .drum.cowbell{background-image:url("assets/arena-cowbell.svg")}
#stage[data-kit="arena"] .drum.hit{filter:brightness(var(--hit-brightness,1.35)) drop-shadow(0 0 12px var(--fx-color,#80edf2))}
#stage[data-kit="funk"] .drum{background-image:url("assets/funk-drum.svg");background-size:100% 100%;background-position:center;background-color:transparent;border:0;box-shadow:none;filter:drop-shadow(0 8px 7px #0009)}
#stage[data-kit="funk"] .drum.sound-snare{background-image:url("assets/funk-snare.svg")}
#stage[data-kit="funk"] .drum.kick{background-image:url("assets/funk-kick.svg")}
#stage[data-kit="funk"] .drum.cymbal{background-image:url("assets/funk-cymbal.svg")}
#stage[data-kit="funk"] .drum.cowbell{background-image:url("assets/funk-cowbell.svg")}
#stage[data-kit="funk"] .drum.hit{filter:brightness(var(--hit-brightness,1.35)) drop-shadow(0 0 12px var(--fx-color,#80edf2))}
#stage[data-kit="industrial"] .drum{background-image:url("assets/industrial-drum.svg");background-size:100% 100%;background-position:center;background-color:transparent;border:0;box-shadow:none;filter:drop-shadow(0 8px 7px #0009)}
#stage[data-kit="industrial"] .drum.sound-snare{background-image:url("assets/industrial-snare.svg")}
#stage[data-kit="industrial"] .drum.kick{background-image:url("assets/industrial-kick.svg")}
#stage[data-kit="industrial"] .drum.cymbal{background-image:url("assets/industrial-cymbal.svg")}
#stage[data-kit="industrial"] .drum.cowbell{background-image:url("assets/industrial-cowbell.svg")}
#stage[data-kit="industrial"] .drum.hit{filter:brightness(var(--hit-brightness,1.35)) drop-shadow(0 0 12px var(--fx-color,#80edf2))}
@media(max-width:600px){.kit-picker{padding:12px}.kit-picker label{width:100%;flex-wrap:wrap}.kit-picker select{flex:1}.kit-picker p{min-width:0}}