:root{color-scheme:light;--paper:#f7f4ee;--ink:#0e1b2e;--red:#8d2029;--ochre:#e8b647;--sage:#a8c4bc;--line:#ccc9c1;--muted:#515967}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:18px/1.45 'IBM Plex Sans','Segoe UI',sans-serif;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='150' height='150'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.75' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' opacity='.035' filter='url(%23n)'/%3E%3C/svg%3E")}
button,input{font:inherit;color:inherit}button,.file-button{min-height:48px;border:1px solid #9a9d9d;border-radius:3px;background:#fffdf9;padding:10px 16px;cursor:pointer;touch-action:manipulation;font-weight:500}button:hover,.file-button:hover{border-color:var(--ink);background:#eeebe3}button:disabled{cursor:default;opacity:.45}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible,.wave-area:focus-visible,.file-button:focus-within{outline:3px solid var(--red);outline-offset:4px}a{color:inherit;text-underline-offset:4px}.skip{position:fixed;top:-100px;left:12px;background:#fff;padding:12px;z-index:5}.skip:focus{top:8px}
.studio-shell{max-width:1660px;margin:auto;padding:20px 4vw}.sitebar{display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--ink);padding-bottom:14px;font-size:13px;letter-spacing:.04em}.brand{font-size:28px;font-weight:700;letter-spacing:-1.3px;text-decoration:none}.brand span{font-size:12px;font-weight:400;letter-spacing:0;margin-left:16px}.sitebar button{font-size:14px}
.intro{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:24px 0 18px}.eyebrow{font:600 12px/1.5 monospace;letter-spacing:.08em;color:var(--red);margin:0 0 12px}.eyebrow b{background:var(--ochre);color:var(--ink);padding:4px 8px;margin-right:12px;font-size:15px}h1{font-size:clamp(38px,3.7vw,62px);font-weight:700;letter-spacing:-.045em;line-height:1.08;margin:0}h1 span{color:var(--red)}.lead{font-size:21px;margin:12px 0 0}.intro-note{border-left:4px solid var(--red);padding-left:20px;color:var(--muted);font-size:16px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);list-style:none;padding:0;margin:0 0 20px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.steps li{display:flex;align-items:center;gap:14px;padding:13px 12px;border-right:1px solid var(--line)}.steps li:last-child{border-right:0}.steps li>b{font:500 20px monospace;color:var(--red)}.steps li>span{font-weight:600;font-size:20px}.steps small{display:block;font-size:13px;font-weight:400;color:var(--muted)}.steps [aria-current]{background:#eee2c5;box-shadow:inset 0 -3px 0 var(--red)}.steps .done>b{color:#355e52}
main:focus{outline:none}.sourcebar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:12px}.sourcebar>div:first-child{min-width:0}.sourcebar strong{display:block;overflow-wrap:anywhere;font-size:18px}.sourcebar span{display:block;font-size:13px;color:var(--muted)}.source-actions{display:flex;gap:10px;flex-shrink:0}.file-button{position:relative;display:inline-flex;align-items:center;overflow:hidden}.file-button input{position:absolute;opacity:0;inset:0;width:100%;height:100%;cursor:pointer}.file-button:has(input:disabled){opacity:.45;cursor:default}
.workbench{background:#182126;color:#dce7e7;border:1px solid #0f171b;border-radius:5px;padding:14px 22px 12px}.wave-header{display:flex;justify-content:space-between;align-items:center;gap:16px;font:13px monospace;letter-spacing:.06em}.wave-header>span{color:var(--sage)}#clock{font-size:18px;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:0}.timeline{height:29px;position:relative;margin-top:8px;font:12px monospace;color:#b5c4c8}.timeline span{position:absolute;top:5px;transform:translateX(-50%)}.timeline span:first-child{transform:none}.timeline span:last-child{transform:translateX(-100%)}.wave-area{position:relative;height:clamp(160px,20vh,260px);touch-action:none;cursor:crosshair;border-block:1px solid #617078;user-select:none;background:#141e23}canvas{display:block;width:100%;height:100%}.region{position:absolute;inset-block:0;background:#e7b63835;border:2px solid #f4c546;pointer-events:none;min-width:1px}.region-start,.region-end{position:absolute;width:10px;height:10px;background:#f4c546;border-radius:50%}.region-start{left:-6px;top:-6px}.region-end{right:-6px;bottom:-6px}.playhead{position:absolute;top:-5px;bottom:-2px;left:0;width:2px;background:#ed636d;pointer-events:none}.playhead:before{content:'';position:absolute;top:-2px;left:-4px;border-top:8px solid #ed636d;border-inline:5px solid transparent}.wave-help{font-size:13px;margin:9px 0 0;color:#c0cbd0}.empty-wave{position:absolute;inset:0;display:grid;place-items:center}
.editor-controls{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:14px 0}.transport{display:flex;flex-wrap:wrap;gap:9px}.primary{background:var(--ink);color:#fff;border-color:var(--ink);min-width:120px}.primary:hover{background:#25384d;color:#fff}.cut-button{border-color:var(--red);color:var(--red);font-weight:600}.compare{display:flex;gap:0;flex-shrink:0}.compare button{border-radius:0;font-size:15px}.compare button+button{border-left:0}.compare [aria-pressed=true]{background:var(--ink);color:#fff;border-color:var(--ink)}
.precision-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(200px,280px);gap:35px;align-items:center;border-bottom:1px solid var(--line);padding-bottom:14px}.selection-fields{display:flex;align-items:end;gap:10px;border:0;padding:0;margin:0;flex-wrap:wrap}.selection-fields legend{font-size:14px;margin-bottom:7px;font-weight:600}.selection-fields legend span{font-weight:400;color:var(--muted);margin-left:16px;font-variant-numeric:tabular-nums}.selection-fields label{display:grid;grid-template-columns:1fr auto;gap:4px;font-size:13px}.unit{color:var(--muted)}input[type=number]{width:120px;min-height:46px;padding:8px 10px;border:1px solid #8f969c;border-radius:2px;background:white;grid-column:1/-1;font-size:18px;font-variant-numeric:tabular-nums}.range-arrow{padding-bottom:12px}.selection-fields button{font-size:14px}.volume{font-size:13px;display:block}.volume output{float:right;font-weight:600}.volume input{display:block;width:100%;height:44px;accent-color:var(--red);cursor:pointer}
.feedback{font-size:17px;border-left:4px solid var(--ochre);padding:10px 16px;margin:14px 0;min-height:46px;background:#eee5d2}.feedback[data-error=true]{border-color:var(--red);background:#f1e3e2}.delivery{display:flex;justify-content:space-between;align-items:center;gap:35px;padding:18px 0}.delivery h2{font-size:25px;font-weight:500;margin:0 0 8px;letter-spacing:-.02em}.delivery p:not(.eyebrow){font-size:14px;color:var(--muted);max-width:720px;margin:0}.delivery .eyebrow{margin-bottom:7px;font-size:10px}.export-button{border:1px solid var(--red);background:var(--red);color:#fff;font-weight:600;flex-shrink:0}.export-button:hover{background:#6e1720;color:#fff}
.bottom-notes{border-top:1px solid var(--ink)}details{border-bottom:1px solid var(--line);font-size:15px}summary{cursor:pointer;min-height:48px;padding:12px 0;font-weight:500}details p{max-width:1050px;margin:8px 0 16px}#ratings{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin:18px 0}.rating-group{border:0;padding:0;margin:0}.rating-group legend{font-size:15px;margin-bottom:10px}.rating-buttons{display:flex;gap:6px}.rating-buttons button{min-width:44px;padding:8px 12px}.rating-buttons [aria-pressed=true]{background:var(--ink);color:#fff}.scale-help{color:var(--muted);font-size:14px}.footer-note{display:flex;justify-content:space-between;gap:24px;font-size:11px;color:var(--muted);padding:20px 0 10px}
[hidden]{display:none!important}
@media(min-width:1600px){body{font-size:21px}.studio-shell{padding-top:24px}.intro{padding-block:30px}.steps{margin-bottom:26px}.steps small{font-size:15px}.steps li>span{font-size:24px}.sourcebar strong{font-size:21px}.sourcebar span{font-size:15px}.wave-area{height:250px}.wave-help{font-size:15px}.workbench{padding-block:18px}.feedback{font-size:20px}.delivery p:not(.eyebrow){font-size:16px}.delivery h2{font-size:29px}}
@media(max-width:1150px){.editor-controls{align-items:start;flex-wrap:wrap}.compare{margin-left:auto}.intro-note{display:none}.sitebar>span{font-size:11px}#ratings{grid-template-columns:1fr 1fr}}
@media(max-width:760px){.studio-shell{padding:16px 20px}.sitebar>span,.brand span{display:none}.brand{font-size:26px}.intro{padding-block:24px 18px}h1{font-size:39px}.lead{font-size:18px}.steps{grid-template-columns:1fr 1fr}.steps li{padding:10px}.steps li:nth-child(2){border-right:0}.steps li:nth-child(-n+2){border-bottom:1px solid var(--line)}.steps li>span{font-size:17px}.steps small{font-size:12px}.sourcebar{flex-wrap:wrap}.source-actions{flex-wrap:wrap;flex-shrink:1}.source-actions button,.file-button{font-size:15px}.workbench{padding-inline:12px}.wave-header{font-size:10px}#clock{font-size:14px}.wave-area{height:190px}.wave-help{font-size:12px}.editor-controls{gap:12px}.transport button{font-size:15px}.compare{margin:0}.precision-row{grid-template-columns:1fr;gap:14px}.volume{max-width:360px}.delivery{display:block;padding:20px 0}.export-button{margin-top:16px}.footer-note{display:block}.footer-note span{display:block;margin:5px 0}#ratings{grid-template-columns:1fr}}
@media(min-width:1100px) and (max-height:850px){.studio-shell{padding-top:12px}.sitebar{padding-bottom:8px}.sitebar button{min-height:44px}.intro{padding-block:16px 12px}.intro h1{font-size:42px}.intro .eyebrow{margin-bottom:8px}.lead{font-size:18px;margin-top:8px}.steps{margin-bottom:14px}.steps li{padding-block:9px}.sourcebar{margin-bottom:10px}.sourcebar button,.file-button{min-height:44px}.workbench{padding-block:10px}.wave-area{height:140px}.wave-help{margin-top:7px}.editor-controls{padding-block:10px}.precision-row{padding-bottom:10px}.feedback{margin-block:10px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}}