.fm-tone-bench{--ftb-ink:#20252d;--ftb-muted:#566173;--ftb-blue:#355bc6;--ftb-line:#c8cfdb;max-width:1240px;color:var(--ftb-ink);margin:0 auto;padding:12px 0 30px;font-family:DM Sans,sans-serif}.fm-tone-bench *,.fm-tone-bench :before,.fm-tone-bench :after{box-sizing:border-box}.fm-tone-bench .ftb-topline{color:var(--ftb-muted);letter-spacing:.08em;text-transform:uppercase;justify-content:space-between;gap:16px;margin-bottom:14px;font:600 11px/1.4 IBM Plex Mono,monospace;display:flex}.fm-tone-bench .ftb-layout{grid-template-columns:minmax(250px,300px) minmax(0,1fr);align-items:start;gap:clamp(24px,4vw,64px);display:grid}.fm-tone-bench .ftb-controls{padding-top:4px}.fm-tone-bench .ftb-controls h2,.fm-tone-bench .ftb-stage h2{letter-spacing:-.035em;margin:0;font:700 clamp(23px,2.4vw,31px)/1.1 Space Grotesk,sans-serif}.fm-tone-bench .ftb-controls p{color:var(--ftb-muted);margin:9px 0 24px;font-size:14px;line-height:1.55}.fm-tone-bench .ftb-controls label{margin:18px 0 7px;font-size:13px;font-weight:700;display:block}.fm-tone-bench .ftb-controls input{width:100%;height:48px;color:var(--ftb-ink);font-variant-numeric:tabular-nums;background:#fff;border:1px solid #8f9aab;border-radius:2px;padding:8px 12px;font:600 18px IBM Plex Mono,monospace}.fm-tone-bench .ftb-controls small{color:var(--ftb-muted);margin-top:5px;font-size:12px;line-height:1.45;display:block}.fm-tone-bench .ftb-actions{gap:8px;margin-top:26px;display:flex}.fm-tone-bench button{border:1px solid var(--ftb-ink);min-height:44px;color:var(--ftb-ink);cursor:pointer;background:0 0;border-radius:2px;padding:9px 13px;font:700 13px DM Sans,sans-serif}.fm-tone-bench button:hover{border-color:var(--ftb-blue);color:var(--ftb-blue)}.fm-tone-bench :is(button,input):focus-visible{outline:3px solid var(--ftb-blue);outline-offset:3px}.fm-tone-bench .ftb-actions .ftb-main-button,.fm-tone-bench .ftb-output-actions button:first-child{border-color:var(--ftb-blue);background:var(--ftb-blue);color:#fff}.fm-tone-bench .ftb-actions .ftb-main-button:hover,.fm-tone-bench .ftb-output-actions button:first-child:hover{color:#fff;background:#274aa9}.fm-tone-bench .ftb-actions .ftb-main-button{flex:1}.fm-tone-bench .ftb-error{background:#f9e9e8;border-left:3px solid #a83835;padding:10px 12px;color:#842d2b!important}.fm-tone-bench .ftb-stage{border-left:1px solid var(--ftb-line);min-width:0;padding:17px 0 0 20px}.fm-tone-bench .ftb-stage-head{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:7px 16px;margin-bottom:20px;display:flex}.fm-tone-bench .ftb-stage-head>span,.fm-tone-bench .ftb-measure>span{color:var(--ftb-muted);font:500 11px/1.4 IBM Plex Mono,monospace}.fm-tone-bench .ftb-readout{flex-wrap:wrap;gap:18px 44px;margin:0 0 22px;display:flex}.fm-tone-bench .ftb-readout>div{flex-direction:column;gap:3px;display:flex}.fm-tone-bench .ftb-readout span{color:var(--ftb-muted);font-size:12px}.fm-tone-bench .ftb-readout strong{font-variant-numeric:tabular-nums;font:600 clamp(22px,3vw,35px)/1.1 Space Grotesk,sans-serif}.fm-tone-bench .ftb-wave{background:#e9edf4;padding:13px 16px 11px}.fm-tone-bench .ftb-measure{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:5px 15px;display:flex}.fm-tone-bench .ftb-measure h3{margin:0;font:700 14px DM Sans,sans-serif}.fm-tone-bench .ftb-wave svg{width:100%;height:130px;margin-top:10px;display:block;overflow:visible}.fm-tone-bench .ftb-wave svg line{stroke:#a8b3c6;stroke-width:.7px}.fm-tone-bench .ftb-wave svg polyline{fill:none;stroke:var(--ftb-blue);stroke-width:2px;vector-effect:non-scaling-stroke}.fm-tone-bench .ftb-axis{color:var(--ftb-muted);justify-content:space-between;font:11px IBM Plex Mono,monospace;display:flex}.fm-tone-bench .ftb-spectrum-heading{margin:24px 0 9px}.fm-tone-bench .ftb-sidebands{border-top:1px solid var(--ftb-line);overflow-x:auto}.fm-tone-bench .ftb-row{font-variant-numeric:tabular-nums;border-bottom:1px solid #dce1e8;grid-template-columns:minmax(85px,1fr) minmax(86px,1fr) minmax(86px,1fr) minmax(110px,1.5fr);align-items:center;gap:8px;min-width:410px;min-height:36px;font:12px/1.3 IBM Plex Mono,monospace;display:grid}.fm-tone-bench .ftb-row>span{white-space:nowrap;min-width:0}.fm-tone-bench .ftb-column-head{min-height:31px;color:var(--ftb-muted);text-transform:uppercase;font-size:10px}.fm-tone-bench .ftb-bar-cell{align-items:center;gap:7px;display:flex}.fm-tone-bench .ftb-bar-cell i{background:var(--ftb-blue);min-width:1px;max-width:55px;height:7px;display:block}.fm-tone-bench .ftb-bar-cell b{font-weight:500}.fm-tone-bench .ftb-limit{max-width:730px;color:var(--ftb-muted);margin:12px 0 18px;font-size:12px;line-height:1.55}.fm-tone-bench .ftb-output-actions{flex-wrap:wrap;gap:8px;display:flex}.fm-tone-bench .ftb-notice{color:var(--ftb-muted);margin:10px 0 0;font-size:12px}.fm-tone-bench .ftb-empty{text-align:center;background:repeating-linear-gradient(90deg,#0000 0 49px,#e5e9f0 50px);place-content:center;justify-items:center;min-height:380px;display:grid}.fm-tone-bench .ftb-empty-mark{color:#aab8d9;font:300 104px/1 Space Grotesk,sans-serif}.fm-tone-bench .ftb-empty p{max-width:290px;color:var(--ftb-muted);padding:0 15px;font-size:14px;line-height:1.5}@media (width<=760px){.ftb-layout{grid-template-columns:1fr;gap:28px}.ftb-stage{border-left:0;border-top:1px solid var(--ftb-line);padding:20px 0 0}.ftb-controls{max-width:520px}.ftb-controls p{margin-bottom:14px}.ftb-controls label{margin-top:12px}.ftb-empty{min-height:210px}.ftb-empty-mark{font-size:72px}}@media (width<=440px){.ftb-topline{font-size:9px}.ftb-wave{padding:11px}.ftb-wave svg{height:105px}.ftb-readout{gap:15px 25px}.ftb-row{min-width:390px}}@media (prefers-reduced-motion:reduce){.fm-tone-bench *,.fm-tone-bench :before,.fm-tone-bench :after{transition:none!important;animation:none!important}}