/* Change Pitch Without Changing Speed 1.0.0 | onlinepitchchanger.com | "proof bench": numbered steps + three comparison lanes (original · record-player way · keep speed).
   Brand: #0067FF primary, #22B8F0 accent, #0F172A navy. Sizes in px (themes shrink rem); text ≥ 15px, labels ≥ 13px; contrast ≥ 4.5:1. */
.opc-pks{--k-blue:#0067ff;--k-blue2:#0052cc;--k-cyan:#22b8f0;--k-navy:#0f172a;--k-navy2:#1e293b;--k-text:#334155;--k-muted:#475569;--k-light:#f0f7ff;--k-line:#d6e4f5;--k-ok:#15803d;--k-okbg:#f0fdf4;--k-warn:#9a3412;--k-warnbg:#fff7ed;--k-amber:#f59e0b;--k-err:#b91c1c;
	max-width:1040px;margin:0 auto 1.75em;color:var(--k-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-pks *,.opc-pks *::before,.opc-pks *::after{box-sizing:border-box}
.opc-pks [hidden]{display:none!important}
.opc-pks p,.opc-pks h2,.opc-pks h3{margin:0}
.opc-pks button,.opc-pks select,.opc-pks input{font:inherit;letter-spacing:normal;text-transform:none;box-shadow:none;margin:0}
.opc-pks button{cursor:pointer;line-height:1.2}
.opc-pks button:disabled{cursor:not-allowed}
.opc-pks :focus-visible{outline:3px solid var(--k-blue);outline-offset:2px}
.opc-pks-head{margin:0 0 12px}
.opc-pks-title{margin:0;font-size:24px;line-height:1.25;font-weight:800;color:var(--k-navy);letter-spacing:-.01em}
.opc-pks-lead{margin:4px 0 0;color:var(--k-muted);font-size:16px}
.opc-pks-top{display:grid;grid-template-columns:minmax(0,1fr);gap:12px}
.opc-pks-card{border:1px solid var(--k-line);border-radius:16px;background:#fff;padding:14px}
.opc-pks.is-drag .opc-pks-src{box-shadow:0 0 0 3px var(--k-cyan)}
.opc-pks-h3{display:flex;align-items:center;gap:8px;margin:0 0 10px;font-size:18px;line-height:1.3;font-weight:800;color:var(--k-navy)}
.opc-pks-h3 label{font:inherit;color:inherit;margin:0}
.opc-pks-n{display:inline-grid;place-items:center;flex:0 0 28px;width:28px;height:28px;border-radius:50%;background:var(--k-navy);color:#fff;font-size:15px;font-weight:800}
.opc-pks-unit{font-weight:600;color:var(--k-muted);font-size:15px}

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

/* 2. pitch */
.opc-pks-readout{margin:0 0 10px;padding:10px 12px;border-radius:12px;background:var(--k-light);font-size:15px;color:var(--k-text)}
.opc-pks-readout strong{display:block;font-size:26px;line-height:1.2;color:var(--k-navy);font-variant-numeric:tabular-nums}
.opc-pks-readout strong[data-kind=same]{font-size:19px;color:var(--k-muted)}
.opc-pks-readout span{display:block;margin-top:2px}
.opc-pks-stepper{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.opc-pks-step{display:inline-grid;place-items:center;min-width:56px;height:48px;padding:0 10px;border-radius:12px;border:1px solid #94a3b8;background:#fff;color:var(--k-navy);font-size:18px;font-weight:800}
.opc-pks-step:hover,.opc-pks-step:focus{background:var(--k-light);color:var(--k-navy)}
.opc-pks .opc-pks-semi{width:84px;max-width:84px;flex:0 0 84px;height:48px;min-height:48px;margin:0;border:1px solid #94a3b8;border-radius:12px;text-align:center;font-size:21px;font-weight:800;color:var(--k-navy);background:#fff;padding:0 4px;-moz-appearance:textfield}
.opc-pks-presets{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;margin-top:10px}
.opc-pks-pre{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:48px;padding:4px 2px;border-radius:10px;border:1px solid #94a3b8;background:#fff;color:var(--k-navy);font-size:17px}
.opc-pks-pre span{font-size:13px;font-weight:700;color:var(--k-muted);line-height:1.15}
.opc-pks-pre b{font-weight:800}
.opc-pks-pre:hover,.opc-pks-pre:focus{background:var(--k-light);color:var(--k-navy)}
.opc-pks-pre[aria-pressed=true]{background:var(--k-blue);border-color:var(--k-blue2);color:#fff}
.opc-pks-pre[aria-pressed=true] span{color:#fff}

/* 3. compare lanes */
.opc-pks-cmp{margin-top:12px;border-color:#b9d3f3;background:linear-gradient(#f7fbff,#fff)}
.opc-pks-verdict{margin:0 0 10px;padding:10px 12px;border-radius:12px;border:1px solid var(--k-line);background:#fff;font-size:16px;font-weight:600;color:var(--k-navy)}
.opc-pks-verdict[data-kind=ok]{border-color:#86efac;background:var(--k-okbg)}
.opc-pks-verdict[data-kind=ok]::before{content:"✓ ";color:var(--k-ok);font-weight:800}
.opc-pks-lanes{display:grid;gap:8px}
.opc-pks-lane{display:grid;grid-template-columns:minmax(0,1fr);gap:6px;width:100%;padding:10px 12px;border:2px solid var(--k-line);border-radius:14px;background:#fff;color:var(--k-text);text-align:left;font-size:15px;transition:border-color .15s,background .15s}
.opc-pks-lane:hover{border-color:#94a3b8;background:#fbfdff;color:var(--k-text)}
.opc-pks-lane[aria-checked=true]{border-color:var(--k-blue);background:var(--k-light);box-shadow:0 0 0 1px var(--k-blue) inset}
.opc-pks-lname{display:flex;flex-wrap:wrap;align-items:baseline;gap:0 8px}
.opc-pks-lname b{font-size:17px;font-weight:800;color:var(--k-navy)}
.opc-pks-lname b::before{content:"";display:inline-block;width:14px;height:14px;margin-right:8px;border-radius:50%;border:2px solid #64748b;vertical-align:-1px;background:#fff}
.opc-pks-lane[aria-checked=true] .opc-pks-lname b::before{border-color:var(--k-blue);background:radial-gradient(circle,var(--k-blue) 45%,#fff 50%)}
.opc-pks-lname span{font-size:14px;color:var(--k-muted)}
.opc-pks-track{position:relative;display:block;height:22px;border-radius:6px;background:repeating-linear-gradient(90deg,#e2e8f0 0 1px,transparent 1px 10%) , #f1f5f9;overflow:hidden}
.opc-pks-fill{position:relative;display:block;height:100%;width:100%;border-radius:6px;background:#64748b;transition:width .35s}
.opc-pks-lane[data-pks-v=r] .opc-pks-fill{background:var(--k-amber)}
.opc-pks-lane[data-pks-v=k] .opc-pks-fill{background:var(--k-blue)}
.opc-pks-ph{position:absolute;top:0;bottom:0;width:4px;margin-left:-2px;background:var(--k-navy);box-shadow:0 0 0 1px #fff}
.opc-pks-facts{display:flex;flex-wrap:wrap;align-items:center;gap:4px 12px;font-size:15px;font-weight:600;color:var(--k-navy);font-variant-numeric:tabular-nums}
.opc-pks-chip{display:inline-block;padding:2px 8px;border-radius:99px;background:#e2e8f0;color:var(--k-navy);font-size:14px;font-weight:800}
.opc-pks-lane[data-pks-v=r][data-kind=changed] .opc-pks-chip{background:var(--k-warnbg);color:var(--k-warn);box-shadow:0 0 0 1px #fdba74 inset}
.opc-pks-lane[data-pks-v=k] .opc-pks-chip{background:var(--k-okbg);color:var(--k-ok);box-shadow:0 0 0 1px #86efac inset}
.opc-pks-lane[data-pks-v=k] .opc-pks-chip::before{content:"✓ "}
.opc-pks-transport{display:flex;flex-wrap:wrap;align-items:flex-end;gap:10px 16px;margin-top:12px}
.opc-pks-play{display:inline-flex;align-items:center;gap:8px;min-height:52px;padding:0 22px 0 14px;border-radius:99px;border:0;background:var(--k-blue);color:#fff;font-weight:800;font-size:17px}
.opc-pks-play:hover,.opc-pks-play:focus{background:var(--k-blue2);color:#fff}
.opc-pks-play:disabled{background:#cbd5e1;color:#334155}
.opc-pks-play svg{width:24px;height:24px;fill:currentColor}
.opc-pks-pos{flex:1 1 220px;display:flex;flex-direction:column;gap:2px;margin:0;min-width:0}
.opc-pks-poslabel{font-size:15px;font-weight:700;color:var(--k-navy)}
.opc-pks-poslabel span{font-variant-numeric:tabular-nums;color:var(--k-text);margin-left:6px}
.opc-pks .opc-pks-pos input{display:block;width:100%;height:44px;min-height:44px;accent-color:var(--k-blue);margin:0;padding:0;border:0;background:transparent}

/* 4. export */
.opc-pks-export{margin-top:12px}
.opc-pks-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(--k-blue);color:#fff;font-weight:800;font-size:17.5px}
.opc-pks-dl:hover,.opc-pks-dl:focus{background:var(--k-blue2);color:#fff}
.opc-pks-dl:disabled{background:#cbd5e1;color:#334155}
.opc-pks-dl svg{width:22px;height:22px}
.opc-pks-dlinfo{margin-top:8px;font-size:15px;color:var(--k-text);overflow-wrap:anywhere;min-height:2.9em}
.opc-pks-dlinfo b{color:var(--k-navy)}
.opc-pks-savewrap{margin-top:8px}
.opc-pks-save{display:inline-flex;align-items:center;min-height:44px;font-weight:700;color:var(--k-blue2);overflow-wrap:anywhere}

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

@media (min-width:600px){
	.opc-pks-presets{grid-template-columns:repeat(6,minmax(0,1fr))}
	.opc-pks-moregrid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:880px){
	.opc-pks-title{font-size:28px}
	.opc-pks-top{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:14px;align-items:start}
	.opc-pks-card{padding:18px}
	.opc-pks-lane{grid-template-columns:210px minmax(0,1fr);grid-template-areas:"n t" "n f";align-items:center;column-gap:16px}
	.opc-pks-lname{grid-area:n;flex-direction:column;gap:2px}
	.opc-pks-track{grid-area:t;height:26px}
	.opc-pks-facts{grid-area:f}
	.opc-pks-moregrid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (prefers-reduced-motion:reduce){.opc-pks *{transition:none!important;animation:none!important}}