/* Change Speed Without Changing Pitch 1.0.0 | onlinepitchchanger.com | "practice deck": speed dial + navy waveform deck with an A–B loop.
   Brand: #0067FF primary, #22B8F0 accent, #0F172A navy. Sizes in px (themes shrink rem); text ≥ 15px, labels ≥ 13px; contrast ≥ 4.5:1. */
.opc-spd{--s-blue:#0067ff;--s-blue2:#0052cc;--s-cyan:#22b8f0;--s-navy:#0f172a;--s-navy2:#1e293b;--s-text:#334155;--s-muted:#475569;--s-light:#f0f7ff;--s-line:#d6e4f5;--s-ok:#15803d;--s-okbg:#f0fdf4;--s-err:#b91c1c;--s-amber:#fbbf24;
	max-width:1040px;margin:0 auto 1.75em;color:var(--s-text);font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;box-sizing:border-box;text-align:left}
.opc-spd *,.opc-spd *::before,.opc-spd *::after{box-sizing:border-box}
.opc-spd [hidden]{display:none!important}
.opc-spd p,.opc-spd h2,.opc-spd h3{margin:0}
.opc-spd button,.opc-spd select,.opc-spd input{font:inherit;letter-spacing:normal;text-transform:none;box-shadow:none;margin:0}
.opc-spd button{cursor:pointer;line-height:1.2}
.opc-spd button:disabled{cursor:not-allowed}
.opc-spd :focus-visible{outline:3px solid var(--s-blue);outline-offset:2px}
.opc-spd-head{margin:0 0 12px}
.opc-spd-title{margin:0;font-size:24px;line-height:1.25;font-weight:800;color:var(--s-navy);letter-spacing:-.01em}
.opc-spd-lead{margin:4px 0 0;color:var(--s-muted);font-size:16px}
.opc-spd-top{display:grid;grid-template-columns:minmax(0,1fr);gap:12px}
.opc-spd-card{border:1px solid var(--s-line);border-radius:16px;background:#fff;padding:14px}
.opc-spd.is-drag .opc-spd-src{box-shadow:0 0 0 3px var(--s-cyan)}
.opc-spd-h3{display:flex;align-items:center;gap:8px;margin:0 0 10px;font-size:18px;line-height:1.3;font-weight:800;color:var(--s-navy)}
.opc-spd-h3 label{font:inherit;color:inherit;margin:0}
.opc-spd-n{display:inline-grid;place-items:center;flex:0 0 28px;width:28px;height:28px;border-radius:50%;background:var(--s-navy);color:#fff;font-size:15px;font-weight:800}
.opc-spd-unit{font-weight:600;color:var(--s-muted);font-size:15px}

/* 1. file */
.opc-spd-file{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden;clip:rect(0 0 0 0)}
.opc-spd-open{display:flex;width:100%;align-items:center;gap:12px;min-height:84px;padding:10px 14px;margin:0;border-radius:12px;background:var(--s-blue);color:#fff;cursor:pointer;transition:background .15s}
.opc-spd-open:hover{background:var(--s-blue2)}
.opc-spd-file:focus-visible+.opc-spd-open{outline:3px solid var(--s-navy);outline-offset:3px}
.opc-spd-open svg{flex:0 0 34px;width:34px;height:34px}
.opc-spd-opentext{display:flex;flex-direction:column;gap:2px;min-width:0}
.opc-spd-opentext strong{font-size:20px;line-height:1.25;color:#fff}
.opc-spd-opensub{font-size:15px;line-height:1.4;color:#fff}
.opc-spd.is-loaded .opc-spd-open{min-height:52px;padding:6px 12px;background:#fff;border:2px solid var(--s-blue);color:var(--s-blue2)}
.opc-spd.is-loaded .opc-spd-open:hover{background:var(--s-light)}
.opc-spd.is-loaded .opc-spd-opentext strong{font-size:16px;color:var(--s-blue2)}
.opc-spd.is-loaded .opc-spd-opensub{display:none}
.opc-spd.is-loaded .opc-spd-open svg{width:24px;height:24px;flex-basis:24px}
.opc-spd-private{display:flex;align-items:flex-start;gap:6px;margin-top:8px;font-size:15px;color:var(--s-muted)}
.opc-spd-private svg{width:16px;height:16px;flex:0 0 16px;margin-top:3px;color:var(--s-ok)}
.opc-spd-bar{height:8px;border-radius:99px;background:#dbe7f7;overflow:hidden;margin-top:8px}
.opc-spd-bar span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--s-blue),var(--s-cyan));transition:width .2s}
.opc-spd-bar.is-busy span{width:35%!important;animation:opc-spd-slide 1.2s linear infinite}
@keyframes opc-spd-slide{from{transform:translateX(-100%)}to{transform:translateX(300%)}}
.opc-spd-status{margin-top:6px;font-size:15px;color:var(--s-text);min-height:2.9em}
.opc-spd-status[data-kind=busy]{font-weight:600;color:var(--s-navy)}
.opc-spd-status[data-kind=ok]{color:var(--s-ok);font-weight:600}
.opc-spd-status[data-kind=ok]::before{content:"✓ "}
.opc-spd-status[data-kind=error]{color:#7f1d1d;font-weight:700;background:#fef2f2;border:1px solid #fecaca;border-radius:10px;padding:8px 10px}
.opc-spd-status[data-kind=error]::before{content:"⚠ "}
.opc-spd-info{margin-top:4px;padding:8px 10px;border-radius:10px;background:var(--s-light);font-size:15px;font-weight:600;color:var(--s-navy);overflow-wrap:anywhere}
.opc-spd-infolabel{color:var(--s-muted);font-weight:700}

/* 2. speed */
.opc-spd-readout{margin:0 0 10px;padding:10px 12px;border-radius:12px;background:var(--s-light);font-size:15px;color:var(--s-text)}
.opc-spd-readout strong{display:block;font-size:34px;line-height:1.1;font-weight:800;color:var(--s-navy);font-variant-numeric:tabular-nums}
.opc-spd-readout strong[data-kind=slow]{color:var(--s-blue2)}
.opc-spd-readout strong[data-kind=fast]{color:#9a3412}
.opc-spd-readout span{display:block;margin-top:3px}
.opc-spd-slide{display:flex;align-items:flex-start;gap:8px}
.opc-spd .opc-spd-sp{flex:1 1 auto;min-width:0;width:100%;height:44px;min-height:44px;accent-color:var(--s-blue);margin:0;padding:0;border:0;background:transparent}
.opc-spd-step,.opc-spd-sstep{display:inline-grid;place-items:center;flex:0 0 auto;min-width:64px;height:48px;padding:0 8px;border-radius:12px;border:1px solid #94a3b8;background:#fff;color:var(--s-navy);font-size:17px;font-weight:800;white-space:nowrap}
.opc-spd-sstep{min-width:52px}
.opc-spd-step:hover,.opc-spd-step:focus,.opc-spd-sstep:hover,.opc-spd-sstep:focus{background:var(--s-light);color:var(--s-navy)}
.opc-spd-rangewrap{position:relative;display:block;flex:1 1 auto;min-width:0;padding:0 0 20px}
.opc-spd-scale{position:absolute;left:10px;right:10px;bottom:0;height:18px;font-size:13px;line-height:18px;font-weight:600;color:var(--s-muted)}
.opc-spd-scale span{position:absolute;top:0;transform:translateX(-50%);white-space:nowrap}
.opc-spd-scale span:first-child{transform:none;margin-left:-10px}
.opc-spd-scale span:last-child{transform:translateX(-100%);margin-left:10px}
.opc-spd-presets{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px;margin-top:10px}
.opc-spd-pre{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:52px;padding:4px 2px;border-radius:10px;border:1px solid #94a3b8;background:#fff;color:var(--s-navy);font-size:16px}
.opc-spd-pre span{font-size:13px;font-weight:700;color:var(--s-muted);line-height:1.15}
.opc-spd-pre b{font-weight:800;white-space:nowrap}
.opc-spd-pre:hover,.opc-spd-pre:focus{background:var(--s-light);color:var(--s-navy)}
.opc-spd-pre[aria-pressed=true]{background:var(--s-blue);border-color:var(--s-blue2);color:#fff}
.opc-spd-pre[aria-pressed=true] span{color:#fff}
.opc-spd-bpm{display:flex;flex-wrap:wrap;align-items:flex-end;gap:8px 16px;margin-top:12px;padding-top:12px;border-top:1px dashed var(--s-line)}
.opc-spd-bpmfound{display:flex;flex-direction:column;font-size:18px;color:var(--s-navy)}
.opc-spd-bpmfound b{font-variant-numeric:tabular-nums;min-height:44px;display:flex;align-items:center}
.opc-spd-label0{font-size:14px;font-weight:700;color:var(--s-muted)}
.opc-spd-bpmset{display:flex;flex-direction:column;margin:0}
.opc-spd .opc-spd-bpmset input{width:120px;height:44px;min-height:44px;border:1px solid #94a3b8;border-radius:10px;padding:0 10px;font-size:18px;font-weight:800;color:var(--s-navy);background:#fff}
.opc-spd .opc-spd-bpmset input:disabled{background:#f1f5f9;color:#475569}

/* 3. deck: waveform + transport + A–B */
.opc-spd-deck{margin-top:12px;background:var(--s-navy);border-color:var(--s-navy);color:#e2e8f0}
.opc-spd-deck .opc-spd-h3{color:#fff}
.opc-spd-deck .opc-spd-n{background:var(--s-cyan);color:var(--s-navy)}
.opc-spd-wave{position:relative;height:112px;border-radius:12px;background:#111c33;border:1px solid #334155;overflow:hidden;cursor:pointer;touch-action:none}
.opc-spd-wave canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.opc-spd-waveempty{position:absolute;inset:0;display:grid;place-items:center;padding:8px 12px;text-align:center;font-size:15px;color:#cbd5e1}
.opc-spd.is-loaded .opc-spd-waveempty{display:none}
.opc-spd-region{position:absolute;top:0;bottom:0;background:rgba(34,184,240,.22);border-left:2px solid var(--s-cyan);border-right:2px solid var(--s-cyan)}
.opc-spd-region.is-on{background:rgba(34,184,240,.34)}
.opc-spd-mark{position:absolute;top:0;display:grid;place-items:center;width:24px;height:24px;margin-left:-12px;border-radius:0 0 8px 8px;background:var(--s-cyan);color:var(--s-navy);font-size:14px;font-weight:800;line-height:1}
.opc-spd-ph{position:absolute;top:0;bottom:0;width:3px;margin-left:-1px;background:var(--s-amber);box-shadow:0 0 0 1px var(--s-navy)}
.opc-spd-transport{display:flex;flex-wrap:wrap;align-items:flex-end;gap:10px 16px;margin-top:12px}
.opc-spd-play{display:inline-flex;align-items:center;gap:8px;min-height:52px;padding:0 22px 0 14px;border-radius:99px;border:0;background:var(--s-blue);color:#fff;font-weight:800;font-size:17px}
.opc-spd-play:hover,.opc-spd-play:focus{background:var(--s-blue2);color:#fff}
.opc-spd-play:disabled{background:#475569;color:#e2e8f0}
.opc-spd-play svg{width:24px;height:24px;fill:currentColor}
.opc-spd-pos{flex:1 1 220px;display:flex;flex-direction:column;gap:2px;margin:0;min-width:0}
.opc-spd-poslabel{font-size:15px;font-weight:700;color:#fff}
.opc-spd-poslabel span{font-variant-numeric:tabular-nums;color:#e2e8f0;margin-left:6px}
.opc-spd .opc-spd-pos input{display:block;width:100%;height:44px;min-height:44px;accent-color:var(--s-cyan);margin:0;padding:0;border:0;background:transparent}
.opc-spd-ab{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:10px}
.opc-spd-abbtn{min-height:48px;padding:6px 10px;border-radius:12px;border:1px solid #64748b;background:#1e293b;color:#fff;font-weight:700;font-size:16px}
.opc-spd-abbtn:hover,.opc-spd-abbtn:focus{background:#334155;color:#fff}
.opc-spd-abbtn:disabled{background:#1e293b;color:#94a3b8;border-color:#334155}
.opc-spd-loop[aria-pressed=true]{background:var(--s-cyan);border-color:var(--s-cyan);color:var(--s-navy)}
.opc-spd-loop[aria-pressed=true]:hover,.opc-spd-loop[aria-pressed=true]:focus{background:#7dd3fc;color:var(--s-navy)}
.opc-spd-loopinfo{margin-top:10px;font-size:15px;color:#e2e8f0;font-variant-numeric:tabular-nums}
.opc-spd-loopinfo b{color:#fff}

/* 4. export */
.opc-spd-export{margin-top:12px}
.opc-spd-dl{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;min-height:52px;padding:0 18px;border:0;border-radius:12px;background:var(--s-blue);color:#fff;font-weight:800;font-size:17.5px}
.opc-spd-dl:hover,.opc-spd-dl:focus{background:var(--s-blue2);color:#fff}
.opc-spd-dl:disabled{background:#cbd5e1;color:#334155}
.opc-spd-dl svg{width:22px;height:22px}
.opc-spd-dlinfo{margin-top:8px;font-size:15px;color:var(--s-text);overflow-wrap:anywhere;min-height:2.9em}
.opc-spd-dlinfo b{color:var(--s-navy)}
.opc-spd-savewrap{margin-top:8px}
.opc-spd-save{display:inline-flex;align-items:center;min-height:44px;font-weight:700;color:var(--s-blue2);overflow-wrap:anywhere}

/* more options (collapsed) */
.opc-spd-more{margin-top:12px;border:1px solid var(--s-line);border-radius:16px;background:#fff}
.opc-spd-more summary{display:flex;align-items:center;flex-wrap:wrap;gap:2px 10px;min-height:52px;padding:8px 16px;cursor:pointer;font-size:17px;font-weight:800;color:var(--s-navy);list-style:none}
.opc-spd-more summary::-webkit-details-marker{display:none}
.opc-spd-more summary::before{content:"+";display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--s-light);color:var(--s-blue2);font-weight:800}
.opc-spd-more[open] summary::before{content:"−"}
.opc-spd-more summary span{font-size:15px;font-weight:600;color:var(--s-muted)}
.opc-spd-more summary:hover{background:var(--s-light);border-radius:16px}
.opc-spd-moregrid{display:grid;grid-template-columns:minmax(0,1fr);gap:4px 20px;padding:0 16px 16px}
.opc-spd-label{display:block;font-size:15px;font-weight:700;color:var(--s-navy);margin:10px 0 4px}
.opc-spd-label label{font:inherit;color:inherit;margin:0}
.opc-spd-hint{display:block;margin:4px 0 0;font-size:15px;line-height:1.45;color:var(--s-muted)}
.opc-spd-stepper{display:flex;align-items:center;gap:8px}
.opc-spd .opc-spd-semi{width:80px;max-width:80px;flex:0 0 80px;height:48px;min-height:48px;margin:0;border:1px solid #94a3b8;border-radius:12px;text-align:center;font-size:20px;font-weight:800;color:var(--s-navy);background:#fff;padding:0 4px;-moz-appearance:textfield}
.opc-spd-seg{display:inline-flex;flex-wrap:wrap;border-radius:12px;padding:3px;gap:3px;background:#e8f0fb}
.opc-spd-seg button{min-height:44px;padding:0 14px;border:0;border-radius:9px;background:transparent;color:var(--s-navy);font-weight:700;font-size:15px;white-space:nowrap}
.opc-spd-seg button:hover,.opc-spd-seg button:focus{background:#d7e6fb;color:var(--s-navy)}
.opc-spd-seg button[aria-checked=true]{background:var(--s-blue);color:#fff}
.opc-spd-seg button[aria-checked=true]::before{content:"● ";font-size:.8em}
.opc-spd-field{display:flex;flex-direction:column;gap:4px;margin:8px 0 0;font-size:15px;color:var(--s-navy);font-weight:700}
.opc-spd .opc-spd-field select,.opc-spd .opc-spd-field input{min-height:44px;height:auto;width:100%;max-width:100%;border:1px solid #94a3b8;border-radius:10px;background:#fff;color:var(--s-navy);padding:0 10px;font-size:16px;font-weight:600}

@media (min-width:600px){
	.opc-spd-ab{grid-template-columns:repeat(4,minmax(0,1fr))}
	.opc-spd-moregrid{grid-template-columns:repeat(2,minmax(0,1fr))}
	.opc-spd-wave{height:132px}
}
@media (min-width:880px){
	.opc-spd-title{font-size:28px}
	.opc-spd-top{grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:14px;align-items:start}
	.opc-spd-card{padding:18px}
	.opc-spd-moregrid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (prefers-reduced-motion:reduce){.opc-spd *{transition:none!important;animation:none!important}}