:root{--bg:#eef2f5;--surface:#fff;--ink:#13222e;--muted:#566774;--line:#c5d0d8;--signal:#007f73;--signal-ink:#fff;--cut:#c2255c;--warn:#8f5400;--wave:#2b4a5e;--focus:#0b57d0;color-scheme:light}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0f1a22;--surface:#16252f;--ink:#e6eef3;--muted:#9bacb8;--line:#2c3f4b;--signal:#3ccdb9;--signal-ink:#06201c;--cut:#ff7aa6;--warn:#f0b24a;--wave:#8fb4c9;--focus:#8ab4ff;color-scheme:dark}}
:root[data-theme=dark]{--bg:#0f1a22;--surface:#16252f;--ink:#e6eef3;--muted:#9bacb8;--line:#2c3f4b;--signal:#3ccdb9;--signal-ink:#06201c;--cut:#ff7aa6;--warn:#f0b24a;--wave:#8fb4c9;--focus:#8ab4ff;color-scheme:dark}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans",sans-serif;font-variant-numeric:tabular-nums}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:8px;top:-60px;background:var(--surface);padding:8px 12px;z-index:5}.skip:focus{top:8px}
.top{display:flex;align-items:center;gap:16px;max-width:980px;margin:0 auto;padding:14px 20px;flex-wrap:wrap}
.brand{font-weight:700;letter-spacing:-.02em;font-size:1.15rem;color:var(--ink);text-decoration:none;margin-right:auto}
.top nav{display:flex;gap:16px}.top nav a{color:var(--muted);text-decoration:none}.top nav a:hover{color:var(--ink);text-decoration:underline}
select,input[type=number]{font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:8px 10px;min-height:44px}
button.icon{min-width:44px;min-height:44px;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:6px;font-size:1.1rem;cursor:pointer}
main{max-width:980px;margin:0 auto;padding:0 20px 40px;display:grid;gap:16px}
.hero{padding:28px 0 4px}
h1{font-size:clamp(1.9rem,5vw,3.1rem);line-height:1.08;letter-spacing:-.035em;margin:0 0 12px;max-width:18ch;font-weight:700}
.lead{font-size:1.1rem;max-width:62ch;color:var(--muted);margin:0 0 20px}
#stage{position:relative;height:190px;border:2px dashed var(--line);border-radius:4px;background:var(--surface);cursor:pointer;overflow:hidden;display:block}
#stage:hover,#stage.over{border-color:var(--signal)}#stage.over{background:color-mix(in srgb,var(--signal) 10%,var(--surface))}
#wave{position:absolute;inset:0;width:100%;height:100%}
.stage-text{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;text-align:center;padding:12px;pointer-events:none}
.stage-text small,#stage-name{color:var(--muted)}#stage-name{font-weight:600;color:var(--ink);max-width:90%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#stage.loaded{border-style:solid}#stage.loaded .stage-text{inset:auto 0 auto 0;top:6px;align-items:flex-start;padding:4px 10px;flex-direction:row;gap:10px}
#stage.loaded .stage-text strong,#stage.loaded .stage-text small{display:none}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:18px 20px}.panel:empty{display:none}.panel[hidden],[hidden]{display:none!important}
.panel.slim{display:flex;gap:12px;align-items:center;flex-wrap:wrap;padding:10px 20px}.panel.slim audio{flex:1;min-width:220px}
h2{font-size:1.2rem;margin:0 0 10px;letter-spacing:-.01em}h3{font-size:1rem;margin:14px 0 6px}
.muted{color:var(--muted)}.small{font-size:.875rem}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px 16px;margin:0}.facts dt{color:var(--muted);font-size:.85rem}.facts dd{margin:0;font-weight:600}
.insights{margin:6px 0 0;padding-left:20px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:6px;overflow:hidden;margin-bottom:12px}
.seg button{min-height:44px;padding:0 16px;border:0;background:var(--surface);color:var(--ink);font:inherit;cursor:pointer}.seg button[aria-pressed=true]{background:var(--ink);color:var(--surface)}
.fields{display:grid;gap:8px;max-width:440px;margin-bottom:12px}.inline{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
fieldset{border:0;padding:0;margin:0}legend{font-size:.95rem;padding:0;margin-bottom:6px}
.chips{display:flex;gap:8px;flex-wrap:wrap}.chip{display:inline-flex;gap:6px;align-items:center;border:1px solid var(--line);border-radius:6px;padding:0 12px;min-height:44px}
.check-l{display:flex;gap:10px;align-items:center;min-height:44px}input[type=checkbox],input[type=radio]{width:20px;height:20px;accent-color:var(--signal)}
.headline{font-size:1.25rem;font-weight:650;letter-spacing:-.01em;margin:0 0 12px;padding-left:12px;border-left:5px solid var(--line)}
.headline.good{border-color:var(--signal)}.headline.bad{border-color:var(--cut)}.headline.mixed{border-color:var(--warn)}
.checks{list-style:none;margin:0;padding:0;display:grid;gap:6px}.check{display:grid;grid-template-columns:24px 140px 1fr;gap:8px;align-items:baseline}
.check .mark{font-weight:800;text-align:center}.check.ok .mark{color:var(--signal)}.check.fail .mark{color:var(--cut)}.check.warn .mark{color:var(--warn)}.check .det{color:var(--muted)}
.optlist{display:grid;gap:10px}.opt{display:grid;grid-template-columns:28px 1fr;gap:8px;border:1px solid var(--line);border-radius:6px;padding:12px;cursor:pointer;align-items:start}
.opt:has(input:checked){border-color:var(--signal);outline:1px solid var(--signal)}.opt:has(input:disabled){cursor:default;opacity:.8}
.optbody{display:grid;gap:2px}.opttitle{font-weight:650}.optmeta,.optwhy{color:var(--muted);font-size:.9rem}.optvalid{font-size:.9rem;font-weight:600}.optvalid.good{color:var(--signal)}.optvalid.bad{color:var(--cut)}
.callout{border-left:5px solid var(--warn);padding:8px 12px;background:color-mix(in srgb,var(--warn) 10%,var(--surface));margin:12px 0 0}
.runbar{display:flex}.btn{display:inline-flex;align-items:center;min-height:44px;padding:0 18px;border:1px solid var(--line);border-radius:6px;background:var(--surface);color:var(--ink);font:inherit;text-decoration:none;cursor:pointer}
.btn.small{min-height:36px;padding:0 12px}.btn.primary{background:var(--signal);color:var(--signal-ink);border-color:var(--signal);font-weight:650;min-width:220px;justify-content:center}.btn:disabled{opacity:.5;cursor:not-allowed}
.busy{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:12px}.busy progress{flex:1;min-width:160px;height:10px;accent-color:var(--signal)}
.badge{display:inline-block;font-weight:700;padding:8px 14px;border-radius:6px;margin:0 0 8px}.badge.good{background:var(--signal);color:var(--signal-ink)}
.good-panel{border-color:var(--signal)}.err{border-color:var(--cut)}
.files{list-style:none;padding:0;margin:12px 0;display:grid;gap:10px}.files li{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.files audio{flex:1;min-width:200px}.actions{display:flex;gap:10px;flex-wrap:wrap}
pre{overflow:auto;background:var(--bg);padding:10px;border-radius:6px;font-size:.85rem}code{font-size:.9em}
.doc{max-width:70ch;padding-top:12px}.doc p{margin:0 0 10px}
footer{max-width:980px;margin:0 auto;padding:0 20px 40px;color:var(--muted)}
@media (max-width:560px){.check{grid-template-columns:24px 1fr}.check .det{grid-column:2}#stage{height:150px}.top nav{display:none}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

.more{margin-top:12px}.more summary{cursor:pointer;min-height:44px;display:flex;align-items:center;color:var(--muted)}.more .optlist{margin-top:6px}