.bk-card{border-radius:var(--radius);background:var(--card);border:1px solid var(--line);min-width:0;box-shadow:var(--edge);gap:14px;padding:clamp(14px,2.4vw,22px);display:grid}.bk-card[hidden]{display:none}.bk-h{overflow-wrap:anywhere;margin:0;font-size:1.05rem}.bk-sub{color:var(--muted);overflow-wrap:anywhere;margin:0;font-size:.88rem}.bk-sub:empty{display:none}.bk-eyebrow{font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-size:.72rem}.bk-file{gap:2px;display:grid}.bk-detail{background:radial-gradient(70% 90% at 0% 0%, var(--primary-soft), transparent 70%), var(--card);border-color:var(--line-strong)}.bk-tiles{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.bk-tiles[hidden],.bk-chroma[hidden],.bk-player[hidden],.bk-busy[hidden]{display:none}.bk-tile{border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--bg-soft);align-content:start;gap:8px;min-width:0;padding:16px;display:grid}.bk-big{flex-wrap:wrap;align-items:baseline;gap:4px 10px;margin:0;line-height:1.05;display:flex}.bk-big b{font-family:var(--font-display);letter-spacing:-.02em;font-variant-numeric:tabular-nums;font-size:clamp(2.3rem,1.6rem + 2.6vw,3.4rem);font-weight:700}.bk-key b{font-size:clamp(1.8rem,1.3rem + 2vw,2.6rem)}.bk-big>span{color:var(--ink-2);font-weight:650}.bk-cam{--bk-hue:210;border-radius:var(--radius-pill);min-width:2.6em;font-family:var(--font-mono);color:hsl(var(--bk-hue) 90% 82%);background:hsl(var(--bk-hue) 70% 50% / .18);border:1px solid hsl(var(--bk-hue) 80% 65% / .45);place-items:center;padding:3px 8px;font-size:.85rem;font-weight:700;display:inline-grid}.bk-cam[hidden]{display:none}:root[data-theme=light] .bk-cam{color:hsl(var(--bk-hue) 80% 28%);background:hsl(var(--bk-hue) 80% 50% / .12)}.bk-meter{background:var(--surface-2);border-radius:99px;height:8px;position:relative;overflow:hidden}.bk-meter>span{border-radius:inherit;background:linear-gradient(90deg, var(--electric), var(--sky));width:0;height:100%;transition:width var(--med) var(--ease-out);display:block}.bk-meter[data-level=low]>span{background:linear-gradient(90deg, var(--gold-deep), var(--spark))}.bk-alts{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;display:grid}.bk-alts .chip-btn{min-height:44px;padding:0 10px}.bk-alts [data-alt=reset]{grid-column:1/-1}.bk-alts [hidden]{display:none}.bk-busy{border-radius:var(--radius-sm);background:var(--bg-soft);align-items:center;gap:12px;padding:14px;display:flex}.bk-busy p{margin:0;font-weight:600}.bk-ring{border:3px solid var(--line-strong);border-top-color:var(--sky);border-radius:50%;flex:none;width:26px;height:26px;animation:.9s linear infinite bk-spin}.bk-busy.is-error .bk-ring{border-color:var(--danger);animation:none}@keyframes bk-spin{to{transform:rotate(360deg)}}.bk-chroma{gap:8px;display:grid}.bk-bars{grid-template-columns:repeat(12,minmax(0,1fr));gap:6px;margin:0;padding:0;list-style:none;display:grid}.bk-bars li{justify-items:center;gap:4px;min-width:0;display:grid}.bk-bar{background:var(--bg-soft);border-radius:6px;align-items:flex-end;width:100%;height:64px;display:flex;overflow:hidden}.bk-bar i{background:linear-gradient(180deg, var(--sky), var(--electric));width:100%;height:3%;transition:height var(--med) var(--ease-out);border-radius:6px 6px 0 0;display:block}.bk-tonic .bk-bar i{background:linear-gradient(180deg, var(--gold-soft), var(--spark))}.bk-note{font-family:var(--font-mono);color:var(--muted);font-size:.72rem}.bk-tonic .bk-note{color:var(--ink);font-weight:700}.bk-player{border-top:1px solid var(--line);padding-top:4px;flex-wrap:wrap;align-items:center;gap:12px 16px;padding-block-start:14px;display:flex}.bk-play{min-width:170px}.bk-glyph{border:7px solid #0000;border-left:12px solid;border-right-width:0;width:0;height:0;display:inline-block}.is-playing .bk-glyph{background:currentColor;border:0;border-radius:2px;width:12px;height:12px}.bk-seek{flex:220px;align-items:center;gap:10px;min-width:0;display:flex}.bk-seek input{width:0;min-height:44px;accent-color:var(--sky);flex:1}.bk-seek output{font-family:var(--font-mono);color:var(--ink-2);white-space:nowrap;font-size:.85rem}.bk-check{align-items:center;gap:8px;min-height:44px;font-weight:600;display:inline-flex}.bk-check input{width:20px;height:20px;accent-color:var(--sky)}.bk-vol{flex:0 240px;align-items:center;gap:10px;min-width:0;display:flex}.bk-vol label{white-space:nowrap;font-weight:600}.bk-vol input{width:0;min-height:44px;accent-color:var(--sky);flex:1}.bk-list-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px 16px;display:flex}.bk-count{font-family:var(--font-body);color:var(--muted);font-size:.9rem;font-weight:500}.bk-field{align-items:center;gap:10px;min-width:0;display:flex}.bk-field label{white-space:nowrap;font-size:.92rem;font-weight:650}.bk-field select{border-radius:var(--radius-sm);border:1px solid var(--line-strong);background:var(--surface-2);min-width:0;max-width:100%;height:44px;padding:0 12px}.bk-field select:focus-visible{border-color:var(--sky);outline:none;box-shadow:0 0 0 4px #7cc4ff2e}.bk-scroll{overflow-x:auto}.bk-table{border-collapse:collapse;width:100%;font-size:.95rem}.bk-table th{text-align:left;font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);border-bottom:1px solid var(--line);padding:8px 10px;font-size:.7rem;font-weight:600}.bk-table td{border-bottom:1px solid var(--line);vertical-align:middle;padding:8px 10px}.bk-table tr.bk-on td{background:var(--primary-soft)}.bk-name{width:100%;min-height:44px;color:var(--ink);font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;gap:2px;padding:4px 0;display:grid}.bk-fname{overflow-wrap:anywhere;font-weight:650}.bk-name:hover .bk-fname{color:var(--link)}.bk-flen,.bk-alt{color:var(--muted);font-size:.8rem;display:block}.bk-c-bpm b{font-family:var(--font-display);font-variant-numeric:tabular-nums;font-size:1.4rem}.bk-c-key{font-weight:600}@media (width>=641px){.bk-c-key,.bk-alt{white-space:nowrap}}.bk-table tr:not([data-status=done]) .bk-c-key{color:var(--muted);font-weight:500}.bk-table tr[data-status=error] .bk-c-key{color:var(--danger)}.bk-c-conf{min-width:150px}.bk-mini{color:var(--muted);grid-template-columns:3.6em minmax(40px,1fr) 4.2em;align-items:center;gap:8px;font-size:.78rem;display:grid}.bk-mini+.bk-mini{margin-top:6px}.bk-mini[hidden]{display:none}.bk-meter-s{height:6px}.bk-c-del{text-align:right;width:48px}.bk-del{width:44px;height:44px;color:var(--muted);background:0 0;border:1px solid #0000;border-radius:50%;font-size:1.4rem;line-height:1}.bk-del:hover{color:var(--danger);border-color:var(--line-strong)}.bk-export{flex-wrap:wrap;gap:10px;display:flex}.bk-export .btn{flex:170px}.bk-tapcard{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:18px}.bk-tap-text{justify-items:start;gap:8px;min-width:0;display:grid}.bk-tap-read{align-items:baseline;gap:8px;margin:0;display:flex}.bk-tap-read b{font-family:var(--font-display);font-variant-numeric:tabular-nums;font-size:2.4rem}.bk-tap-read span{color:var(--ink-2);font-weight:650}.bk-pad{border:1px solid var(--line-strong);background:radial-gradient(circle at 35% 30%, #ffffff38, transparent 55%), radial-gradient(circle at 50% 60%, var(--electric), var(--deep));color:#fff;width:148px;height:148px;font-family:var(--font-display);box-shadow:0 0 0 6px var(--primary-soft), 0 18px 40px -18px #2f7bffcc;touch-action:manipulation;-webkit-user-select:none;user-select:none;cursor:pointer;border-radius:50%;place-items:center;font-size:1.5rem;font-weight:700;display:grid;position:relative}.bk-pad:focus-visible{outline:3px solid var(--focus);outline-offset:6px}.bk-pad.is-hit{animation:bk-hit .22s var(--ease-out)}@keyframes bk-hit{0%{transform:scale(.92);box-shadow:0 0 0 14px #7cc4ff40,0 18px 40px -18px #2f7bffcc}}.bk kbd{border:1px solid var(--line-strong);background:var(--surface-2);font-family:var(--font-mono);border-radius:6px;padding:1px 6px;font-size:.8rem}@media (prefers-reduced-motion:reduce){.bk-pad.is-hit,.bk-ring{animation:none}}@media (width<=640px){.bk-tiles{grid-template-columns:minmax(0,1fr)}.bk-bars{gap:3px}.bk-bar{height:52px}.bk-play{flex:100%}.bk-vol{flex:160px}.bk-field{flex-wrap:wrap;width:100%}.bk-field select{width:100%}.bk-scroll{overflow:visible}.bk-table thead{display:none}.bk-table,.bk-table tbody{display:block}.bk-table tr{border-bottom:1px solid var(--line);grid-template-columns:minmax(0,1fr) auto 44px;gap:4px 10px;padding:10px 4px;display:grid}.bk-table tr.bk-on{border-radius:var(--radius-sm);background:var(--primary-soft)}.bk-table td{border:0;min-width:0;padding:0;display:block}.bk-table tr.bk-on td{background:0 0}.bk-c-file{grid-column:1/3}.bk-c-del{grid-area:1/3;width:auto}.bk-c-bpm{grid-column:1}.bk-c-key{grid-column:1/3}.bk-c-cam{grid-area:2/2;align-self:center}.bk-c-conf{grid-column:1/-1;min-width:0}.bk-tapcard{text-align:center;grid-template-columns:minmax(0,1fr);justify-items:center}.bk-tap-text{justify-items:center}.bk-pad{order:-1;width:136px;height:136px}}