:root{
  --bg:#0b0f16; --panel:#141a24; --panel2:#1b2330; --line:#28313f;
  --fg:#e8edf5; --dim:#93a0b4; --accent:#38bdf8; --hot:#f43f5e;
  --radius:16px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:radial-gradient(1200px 700px at 50% -10%,#182234,#0b0f16 60%);
  color:var(--fg); font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Noto Sans JP",system-ui,sans-serif;
  height:100vh; height:100dvh; overflow:hidden;
  display:flex; flex-direction:column; -webkit-text-size-adjust:100%;
}
header{flex:0 0 auto;display:flex;align-items:baseline;gap:16px;flex-wrap:wrap;padding:12px 20px 6px}
h1{font-size:20px;margin:0;letter-spacing:.02em}
h1 span{font-weight:400;color:var(--dim);font-size:15px;margin-left:6px}
.hint{color:var(--dim);font-size:12px}
h2{font-size:13px;margin:0 0 10px;color:var(--dim);letter-spacing:.08em}

main{
  flex:1 1 auto; min-height:0;
  display:grid;grid-template-columns:270px minmax(0,1fr) 190px;gap:12px;
  padding:4px 16px 14px;
}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:12px;min-height:0}
.center{display:flex;flex-direction:column;gap:10px;min-width:0;min-height:0}
.list-panel{display:flex;flex-direction:column;min-height:0}
.score-panel{flex:0 1 auto;display:flex;flex-direction:column;min-height:0}
.kit-panel{flex:1 1 auto;display:flex;flex-direction:column;min-height:0}
.controls{flex:0 0 auto}
.legend-panel{display:flex;flex-direction:column;min-height:0}

/* ---- list ---- */
.cats{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.cat{background:var(--panel2);border:1px solid var(--line);color:var(--dim);border-radius:999px;
  padding:5px 11px;font-size:12px;cursor:pointer}
.cat.active{background:var(--accent);color:#06202c;border-color:var(--accent);font-weight:700}
.list{list-style:none;margin:0;padding:0;flex:1 1 auto;min-height:0;overflow:auto}
.fill{display:flex;justify-content:space-between;align-items:center;gap:8px;
  padding:7px 10px;border-radius:10px;cursor:pointer;border:1px solid transparent}
.fill:hover{background:var(--panel2)}
.fill.active{background:#0e2b3a;border-color:var(--accent)}
.fill-name{display:block;font-size:14px}
.fill-meta{display:block;font-size:11px;color:var(--dim);margin-top:2px}
.stars{font-size:9px;color:var(--accent);letter-spacing:1px;white-space:nowrap}

/* ---- score ---- */
.score-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:6px;flex:0 0 auto}
.title{font-size:18px;font-weight:700}
.subtitle{font-size:12px;color:var(--dim);margin-top:3px}
.nav{display:flex;gap:6px}
.used{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:6px}
.chip{font-size:11px;padding:3px 9px;border-radius:999px;border:1px solid var(--c);color:var(--c);
  background:color-mix(in srgb,var(--c) 12%,transparent)}
.score-wrap{background:#f7f9fc;border-radius:12px;padding:6px 6px;flex:0 0 auto;min-height:0;display:flex;justify-content:center}
#score{width:100%;height:auto;max-height:42vh;min-height:0;display:block}
.staff-line{stroke:#2b3442;stroke-width:1.4}
.beat-line{stroke:#c9d3e0;stroke-width:1;stroke-dasharray:3 4}
.barline{stroke:#2b3442;stroke-width:2.4}
.barline.end{stroke-width:5}
.clef{fill:#2b3442}
.ledger{stroke:#2b3442;stroke-width:1.6}
.head.filled{fill:#141a24}
.head.cross{stroke:#141a24;stroke-width:2.6;stroke-linecap:round;fill:none}
.head.ring{stroke:#141a24;stroke-width:1.6;fill:none}
.stem,.beam,.flag{stroke:#141a24;fill:none}
.stem{stroke-width:1.8}
.beam{stroke-width:6;stroke-linecap:butt}
.flag{stroke-width:2.4}
.count{fill:#7b8798;font-size:13px;text-anchor:middle;font-family:ui-monospace,monospace}
.count.beat{fill:#2b3442;font-weight:700;font-size:15px}
.tuplet{fill:#2b3442;font-size:14px;text-anchor:middle;font-style:italic}
.cursor{stroke:var(--hot);stroke-width:2.5;opacity:.85}
.note{transition:transform .06s}
.note.on .head.filled{fill:var(--hot)}
.note.on .head.cross,.note.on .head.ring{stroke:var(--hot)}
.note.on{transform:scale(1.001)}
.note.on .head{filter:drop-shadow(0 0 6px rgba(244,63,94,.8))}

/* ---- controls ---- */
.controls{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.play{background:var(--accent);color:#062230;border:0;border-radius:12px;padding:10px 22px;
  font-size:15px;font-weight:800;cursor:pointer;min-width:128px}
.play.playing{background:var(--hot);color:#fff}
.tempo{display:flex;align-items:center;gap:10px}
.bpm-box{min-width:78px;text-align:center;background:var(--panel2);border:1px solid var(--line);
  border-radius:10px;padding:5px 8px}
#bpm{font-size:22px;font-weight:800;font-variant-numeric:tabular-nums}
.bpm-box small{display:block;font-size:10px;color:var(--dim)}
input[type=range]{width:170px;accent-color:var(--accent)}
.ghost{background:var(--panel2);color:var(--fg);border:1px solid var(--line);border-radius:10px;
  padding:7px 12px;font-size:13px;cursor:pointer}
.ghost.sq{width:38px;height:38px;font-size:18px;padding:0}
.toggles{display:flex;gap:6px;flex-wrap:wrap}
.tg{background:var(--panel2);border:1px solid var(--line);color:var(--dim);border-radius:999px;
  padding:7px 13px;font-size:12px;cursor:pointer}
.tg.on{background:#0e2b3a;border-color:var(--accent);color:var(--accent);font-weight:700}

/* ---- kit ---- */
.kit-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:4px;flex:0 0 auto}
.kit-note{font-size:11px;color:var(--dim)}
#kit{width:100%;height:100%;flex:1 1 auto;min-height:0;display:block}
.pad{cursor:pointer}
.pad-shape{fill:#f4f7fb;stroke:#0b0f16;stroke-width:5;stroke-linejoin:round;transition:fill .12s}
.pad.assigned .pad-shape{fill:#e3ebf5}
.pad-id{text-anchor:middle;font-size:30px;font-weight:800;fill:#0b0f16;pointer-events:none}
.pad-label{text-anchor:middle;font-size:16px;fill:#5a687d;pointer-events:none}
.pad.assigned .pad-id{font-size:27px}
.pad.hit .pad-shape{fill:var(--pad-color,#38bdf8);stroke:#fff;
  filter:drop-shadow(0 0 14px var(--pad-color,#38bdf8)) drop-shadow(0 0 30px var(--pad-color,#38bdf8));
  transition:none}
.pad.hit .pad-id,.pad.hit .pad-label{fill:#0b0f16}
.pad:hover .pad-shape{fill:#cfe0f2}

/* ---- legend ---- */
.legend{display:flex;flex-direction:column;gap:4px;flex:1 1 auto;min-height:0;overflow:auto}
.leg{display:flex;align-items:center;gap:7px;padding:4px 7px;border-radius:9px;cursor:pointer;
  background:var(--panel2);border:1px solid var(--line)}
.leg:hover{border-color:var(--c)}
.leg b{display:inline-block;min-width:30px;text-align:center;font-size:11px;padding:2px 0;
  border-radius:5px;background:var(--c);color:#0b0f16}
.leg span{font-size:12px;color:var(--fg)}
.foot{font-size:11px;color:var(--dim);line-height:1.6;margin:12px 0 0}

@media (max-width:1180px){
  main{display:flex;flex-direction:column;gap:8px;padding:4px 12px 10px;overflow-y:auto;-webkit-overflow-scrolling:touch}
  .panel{padding:10px}
  .legend-panel{display:none}
  .list-panel{flex:0 0 auto}
  .list{max-height:15vh;min-height:70px}
  .cats{margin-bottom:6px}
  .center{flex:1 1 auto;gap:8px}
  .score-panel{flex:0 0 auto !important;min-height:0}
  .score-wrap{flex:0 0 auto}
  #score{max-height:24vh}
  .list{max-height:13vh}
  .kit-panel{flex:1 1 auto;min-height:150px}
  #kit{min-height:110px}
  .controls{gap:10px 14px}
  .play{padding:9px 18px;min-width:104px;font-size:14px}
  .ghost.sq{width:34px;height:34px}
  input[type=range]{width:130px}
}
@media (max-width:760px){
  header{padding:8px 12px 4px}
  header .hint{display:none}
  h1{font-size:17px}
  .list{max-height:13vh}
  .used{display:none}
  .toggles{gap:5px}
  .tg{padding:5px 9px;font-size:11px}
  .vol label{display:none}
  .vol input[type=range]{width:84px}
  input[type=range]{width:104px}
}
/* 画面が低すぎる場合のみスクロールに戻す */
@media (max-height:520px){
  body{height:auto;overflow:auto;display:block}
  main{display:block}
  .panel{margin-bottom:10px}
  .score-wrap,#score,#kit{height:auto}
  .list{max-height:200px}
}

/* 説明・音源セレクタ・強弱表示 */
.desc{font-size:12px;color:#b6c2d4;margin-top:5px;line-height:1.5;max-width:70ch}
.kitsel{display:flex;align-items:center;gap:8px}
.kitsel label{font-size:12px;color:var(--dim)}
#kit-select{background:var(--panel2);color:var(--fg);border:1px solid var(--line);
  border-radius:10px;padding:7px 10px;font-size:13px;max-width:230px}
.kit-status{font-size:11px;color:var(--accent);min-width:76px}
.credit{font-size:10px;line-height:1.5}
.credit a{color:var(--dim)}
.acc-legend{color:var(--dim)}
.note.ghost .head.filled{fill:#8b97a8}
.note.ghost .head.cross{stroke:#8b97a8}
.paren{fill:#8b97a8;font-size:17px;text-anchor:middle}
.accent-mark{fill:#141a24;font-size:16px;font-weight:700;text-anchor:middle;font-family:Georgia,serif}
.note.on .paren{fill:var(--hot)}
@media (max-width:1180px){ .desc{display:none} }

/* 種類タブとタグ */
.types{margin-bottom:8px;padding-bottom:8px;border-bottom:1px solid var(--line)}
.cat.type{font-weight:700}
.cat.type.active{background:#f59e0b;color:#2b1a02;border-color:#f59e0b}
.tag{display:inline-block;font-size:9px;font-weight:700;padding:1px 6px;border-radius:4px;margin-right:6px;
  vertical-align:1px;letter-spacing:.02em}
.tag-fill{background:#f59e0b22;color:#f59e0b;border:1px solid #f59e0b55}
.tag-groove{background:#38bdf822;color:var(--accent);border:1px solid #38bdf855}