.ste-app{--ste-bg:var(--at-page);--ste-card:var(--at-card);--ste-card-hover:var(--at-card-2);--ste-border:var(--at-border);--ste-border-strong:var(--at-border-strong);--ste-purple:var(--at-violet);--ste-purple-light:var(--at-violet-text);--ste-purple-glow:var(--at-violet-glow);--ste-cyan:var(--at-brand);--ste-cyan-light:var(--at-brand-text);--ste-cyan-glow:color-mix(in srgb, var(--at-brand) 30%, transparent);--ste-green:var(--at-success);--ste-amber:var(--at-warning);--ste-red:var(--at-danger);--ste-text:var(--at-text);--ste-text-muted:var(--at-body);--ste-text-subtle:var(--at-mute);--ste-radius:22px;--ste-radius-sm:14px;--ste-radius-pill:999px;--ste-card-shadow:0 24px 50px -32px color-mix(in srgb, var(--at-text) 45%, transparent), inset 0 1px 0 0 #ffffff0a;--ste-mono:ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;isolation:isolate;background-color:var(--ste-bg);color:var(--ste-text);min-height:100vh;padding:2.5rem 1rem 4rem;font-family:Inter,system-ui,sans-serif;position:relative}.ste-app.rtk-audio{--at-scope-cyan:#ff9a3d;--at-scope-cyan-deep:#ff7a00;--at-scope-cyan-tint:#ff7a0024;--at-scope-cyan-line:#ff7a0061;--at-scope-violet:#e85d00;--at-scope-violet-deep:#c95400;--at-scope-violet-tint:#e85d0029;--at-scope-violet-line:#e85d0066;--at-brand-btn-from:#ff7a00;--at-brand-btn-to:#e85d00;--at-brand-btn-hover-from:#ff8a1f;--at-brand-btn-hover-to:#ff7a00;--at-brand-glow:#ff7a004d}:root:not(.dark) .ste-app.rtk-audio{--at-violet:#e85d00;--at-violet-text:#d96200;--at-violet-glow:#e85d0038;--at-violet-tint:color-mix(in srgb, #ff7a00 8%, var(--color-canvas));--at-violet-line:color-mix(in srgb, #ff7a00 30%, var(--color-hairline))}:root.dark .ste-app.rtk-audio{--at-violet:#ff8a1f;--at-violet-text:#ff8a1f;--at-violet-glow:#ff7a0059;--at-violet-tint:color-mix(in srgb, #ff7a00 16%, var(--color-canvas));--at-violet-line:color-mix(in srgb, #ff7a00 40%, var(--color-hairline))}.ste-app:before{content:"";background:radial-gradient(50% 50% at 50% 50%, color-mix(in srgb, var(--at-brand) 14%, transparent) 0%, color-mix(in srgb, var(--at-violet) 9%, transparent) 45%, transparent 72%);filter:blur(64px);z-index:-1;pointer-events:none;border-radius:999px;width:min(900px,100vw);height:540px;position:absolute;top:-200px;left:50%;translate:-50%}.ste-shell{flex-direction:column;gap:1.75rem;max-width:1280px;margin:0 auto;display:flex}.ste-hero{text-align:center;margin-bottom:.5rem;position:relative}.ste-hero-glow{pointer-events:none;background:radial-gradient(50% 50% at 50% 50%, color-mix(in srgb, var(--at-brand) 12%, transparent) 0%, color-mix(in srgb, var(--at-violet) 7%, transparent) 45%, transparent 72%);filter:blur(48px);z-index:-1;border-radius:999px;width:min(620px,90vw);height:280px;position:absolute;top:-60px;left:50%;translate:-50%}.ste-hero-badges{flex-wrap:wrap;justify-content:center;align-items:center;gap:.6rem;margin-bottom:1rem;display:flex}.ste-title-row{flex-wrap:wrap;justify-content:center;align-items:center;gap:.85rem;display:inline-flex}.ste-title-icon{background:linear-gradient(135deg, color-mix(in srgb, var(--at-violet) 16%, var(--at-card)), color-mix(in srgb, var(--at-brand) 16%, var(--at-card)));border:1px solid var(--at-violet-line);width:52px;height:52px;color:var(--ste-cyan-light);box-shadow:0 8px 24px -12px color-mix(in srgb, var(--at-brand) 60%, transparent);border-radius:14px;justify-content:center;align-items:center;display:inline-flex}.ste-title{letter-spacing:-.035em;color:var(--ste-text);text-wrap:balance;margin:0;font-size:clamp(2.2rem,1.4rem + 3.4vw,3.4rem);font-weight:800;line-height:1.05}.ste-badge{letter-spacing:.08em;border-radius:100px;padding:.35rem .85rem;font-size:.74rem;font-weight:800}.ste-badge--pro{background:var(--at-violet-tint);color:var(--ste-purple-light);border:1px solid var(--at-violet-line)}.ste-status-dot-badge{color:var(--ste-green);background:var(--at-success-tint);border:1px solid var(--at-success-line);border-radius:100px;align-items:center;gap:.45rem;padding:.4rem .95rem;font-size:.74rem;font-weight:700;display:inline-flex}.ste-dot{background-color:var(--ste-green);width:7px;height:7px;box-shadow:0 0 6px var(--ste-green);border-radius:50%}.ste-subtitle{color:var(--ste-text-muted);text-wrap:pretty;max-width:44rem;margin:.85rem auto 0;font-size:1.05rem;line-height:1.65}.ste-hero-actions{flex-wrap:wrap;justify-content:center;align-items:center;gap:.6rem;margin-top:1.4rem;display:flex}.ste-privacy-pill{letter-spacing:.04em;background:var(--at-success-tint);color:var(--ste-green);border:1px solid var(--at-success-line);border-radius:100px;align-items:center;gap:.45rem;padding:.45rem .9rem;font-size:.74rem;font-weight:700;display:inline-flex}.ste-privacy-dot{background-color:var(--ste-green);width:7px;height:7px;box-shadow:0 0 6px var(--ste-green);border-radius:50%}.ste-nodownload-pill{letter-spacing:.04em;background:var(--at-tint-fill);border:1px solid var(--ste-border);color:var(--ste-text-subtle);border-radius:100px;padding:.45rem .85rem;font-size:.74rem;font-weight:700}.ste-btn-icon{background:var(--ste-card);border:1px solid var(--ste-border);border-radius:var(--ste-radius-sm);width:42px;height:42px;color:var(--ste-text-muted);cursor:pointer;justify-content:center;align-items:center;transition:all .18s;display:inline-flex}.ste-btn-icon:hover{color:var(--ste-text);border-color:var(--ste-cyan-light);background:var(--ste-card-hover);transform:translateY(-1px)}.ste-safe-banner{background:var(--at-brand-tint);border:1px solid var(--at-brand-line);color:var(--at-info-text);border-radius:14px;align-items:center;gap:.85rem;padding:.85rem 1.2rem;font-size:.92rem;display:flex}.ste-safe-icon{color:var(--ste-cyan-light);flex-shrink:0}.ste-safe-text{flex:1;line-height:1.45}.ste-paused-banner{background:var(--at-warning-tint);border:1px solid var(--at-warning-line);color:var(--at-warning-text);border-radius:8px;align-items:center;gap:.6rem;padding:.65rem 1rem;font-size:.82rem;display:flex}.ste-pause-dot{background:var(--ste-amber);border-radius:50%;width:8px;height:8px;animation:1.2s infinite stePulse}@keyframes stePulse{0%,to{opacity:1}50%{opacity:.3}}.ste-card{background:var(--ste-card);border:1px solid var(--ste-border);border-radius:var(--ste-radius);box-shadow:var(--ste-card-shadow);position:relative;overflow:hidden}.ste-card-head{border-bottom:1px solid var(--ste-border);background:var(--at-tint-fill);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem;padding:1.1rem 1.6rem;display:flex}.ste-panel-kicker{font-family:var(--ste-mono);letter-spacing:.09em;color:var(--ste-cyan-light);font-size:.82rem;font-weight:800}.ste-grid{grid-template-columns:minmax(0,1fr) 360px;align-items:start;gap:1.5rem;display:grid}.ste-col-main,.ste-col-side{flex-direction:column;gap:1.5rem;display:flex}.ste-test-topbar{background:var(--at-tint-fill);border-bottom:1px solid var(--ste-border);grid-template-columns:repeat(5,1fr);display:grid}.ste-topbar-cell{border-right:1px solid var(--ste-border);flex-direction:column;justify-content:center;align-items:center;gap:.3rem;padding:1rem .5rem;display:flex}.ste-topbar-cell:last-child{border-right:none}.ste-top-lbl{letter-spacing:.08em;color:var(--ste-text-subtle);font-size:.68rem;font-weight:700}.ste-top-val{font-size:1.05rem;font-family:var(--ste-mono);color:var(--ste-text)}.ste-top-val--cyan{color:var(--ste-cyan-light);font-weight:700}.ste-status--ready{color:var(--ste-green);font-weight:700}.ste-status--playing{color:var(--ste-cyan-light);font-weight:700}.ste-status--paused{color:var(--ste-amber);font-weight:700}.ste-status--stopped{color:var(--ste-text-muted);font-weight:700}.ste-viewport-wrapper{background:radial-gradient(circle at center, #ff7a0014 0%, var(--at-scope-bg) 80%);border-bottom:1px solid var(--at-scope-border);height:380px;position:relative;overflow:hidden}.ste-channel-labels-bar{pointer-events:none;z-index:2;justify-content:space-between;display:flex;position:absolute;top:1rem;left:1rem;right:1rem}.ste-chan-col-head{background:var(--at-scope-panel);backdrop-filter:blur(10px);border:1px solid var(--at-scope-line);border-left:3px solid var(--at-scope-cyan);pointer-events:auto;border-radius:10px;align-items:center;gap:.6rem;padding:.5rem .95rem;display:flex}.ste-chan-col-head:last-child{border-left:3px solid var(--at-scope-violet)}.ste-chan-letter{font-family:var(--ste-mono);color:var(--at-scope-cyan);font-size:1.6rem;font-weight:800;line-height:1}.ste-chan-col-head:last-child .ste-chan-letter{color:var(--at-scope-violet)}.ste-chan-title{letter-spacing:.06em;color:var(--at-scope-text);font-size:.82rem;font-weight:800}.ste-chan-status{font-size:.7rem;font-weight:800;font-family:var(--ste-mono);letter-spacing:.04em;border-radius:100px;align-items:center;gap:.4rem;padding:.2rem .55rem;display:inline-flex}.ste-chan-dot{border-radius:50%;width:7px;height:7px}.ste-chan-status.is-silent{color:var(--at-scope-subtle);background:var(--at-scope-fill)}.ste-chan-status.is-silent .ste-chan-dot{background:var(--at-scope-subtle)}.ste-chan-status.is-active{color:var(--ste-cyan-light);background:var(--at-brand-tint)}.ste-chan-status.is-active .ste-chan-dot{background:var(--ste-cyan);box-shadow:0 0 8px var(--ste-cyan)}.ste-main-canvas{width:100%;height:100%;display:block}.ste-vp-overlay-bar{z-index:3;pointer-events:none;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.4rem .75rem;display:flex;position:absolute;bottom:.75rem;left:1rem;right:1rem}.ste-vp-modes{pointer-events:auto;gap:.35rem;display:flex}.ste-vp-mode-btn{background:var(--at-scope-panel);backdrop-filter:blur(8px);border:1px solid var(--at-scope-line);color:var(--at-scope-muted);letter-spacing:.03em;cursor:pointer;border-radius:100px;padding:.4rem .85rem;font-size:.74rem;font-weight:800;transition:all .15s}.ste-vp-mode-btn:hover{color:var(--at-scope-text)}.ste-vp-mode-btn.is-active{background:var(--at-scope-cyan-tint);border-color:var(--at-scope-cyan-deep);color:var(--at-scope-cyan)}.ste-vp-telemetry{background:var(--at-scope-panel);backdrop-filter:blur(8px);border:1px solid var(--at-scope-line);color:var(--at-scope-muted);font-size:.78rem;font-family:var(--ste-mono);border-radius:100px;align-items:center;gap:.5rem;padding:.4rem .85rem;display:flex}.ste-vp-telemetry strong{color:var(--at-scope-text)}.ste-vp-sep{color:var(--at-scope-subtle)}.ste-center-state{z-index:4;text-align:center;background:var(--at-scope-panel);border:1px solid var(--at-scope-border);backdrop-filter:blur(8px);width:calc(100% - 2rem);max-width:500px;box-shadow:var(--at-scope-shadow);border-radius:12px;flex-direction:column;align-items:center;padding:2rem;display:flex;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.ste-ready-halo{background:var(--at-scope-cyan-tint);border:1px solid var(--at-scope-cyan-line);width:88px;height:88px;color:var(--at-scope-cyan);border-radius:50%;justify-content:center;align-items:center;margin-bottom:1.5rem;display:flex;box-shadow:0 0 36px #ff7a0059}.ste-ready-title{letter-spacing:-.02em;color:var(--at-scope-text);margin:0 0 .6rem;font-size:1.85rem;font-weight:800}.ste-ready-desc{color:var(--at-scope-muted);max-width:30rem;margin:0 0 1.5rem;font-size:1.02rem;line-height:1.6}.ste-ready-actions{flex-wrap:wrap;justify-content:center;align-items:center;gap:.75rem;display:flex}.ste-center-state .ste-btn-outline{background:var(--at-scope-fill);border-color:var(--at-scope-line);color:var(--at-scope-text)}.ste-center-state .ste-btn-outline:hover{background:var(--at-scope-fill-2);border-color:var(--at-scope-cyan-deep)}.ste-meters-row{background:var(--at-tint-fill);border-bottom:1px solid var(--ste-border);grid-template-columns:1fr 1fr;gap:1rem;padding:.75rem 1.15rem;display:grid}.ste-meter-unit{flex-direction:column;gap:.35rem;display:flex}.ste-meter-header{justify-content:space-between;align-items:center;font-size:.78rem;display:flex}.ste-meter-lbl{letter-spacing:.04em;color:var(--ste-text-subtle);font-weight:800}.ste-meter-db{font-family:var(--ste-mono);color:var(--ste-cyan-light);font-size:.9rem;font-weight:700}.ste-meter-track{background:var(--at-card-2);border-radius:999px;width:100%;height:12px;overflow:hidden}.ste-meter-fill{height:100%;transition:width 80ms}.ste-meter-fill--left{background:linear-gradient(90deg,#ffb066 0%,#ff8a1f 100%)}.ste-meter-fill--right{background:linear-gradient(90deg,#ff7a00 0%,#e85d00 100%)}.ste-fs-overlay{z-index:9999;background:var(--at-scope-panel);backdrop-filter:blur(12px);border:1px solid var(--at-scope-line);border-radius:100px;align-items:center;gap:1.25rem;padding:.65rem 1.25rem;transition:opacity .4s,transform .4s;display:flex;position:fixed;bottom:2rem;left:50%;transform:translate(-50%);box-shadow:0 8px 30px #000000b3}.ste-fs-overlay.is-faded{opacity:0;pointer-events:none;transform:translate(-50%)translateY(10px)}.ste-tool-container:not(.is-fullscreen) .ste-fs-overlay{display:none}.ste-tool-container.is-fullscreen{z-index:9998;width:100vw;height:100vh;padding:0;position:fixed;top:0;left:0}.ste-tool-container.is-fullscreen .ste-shell{max-width:none;height:100vh}.ste-tool-container.is-fullscreen .ste-hero,.ste-tool-container.is-fullscreen .ste-safe-banner,.ste-tool-container.is-fullscreen .ste-col-side,.ste-tool-container.is-fullscreen .ste-primary-channels-card,.ste-tool-container.is-fullscreen .ste-movement-card,.ste-tool-container.is-fullscreen .ste-controls-card,.ste-tool-container.is-fullscreen .ste-quick-card,.ste-tool-container.is-fullscreen .ste-freq-card,.ste-tool-container.is-fullscreen .ste-sweep-card,.ste-tool-container.is-fullscreen .ste-phase-card,.ste-tool-container.is-fullscreen .ste-guide-section,.ste-tool-container.is-fullscreen .ste-cta-section{display:none!important}.ste-tool-container.is-fullscreen .ste-grid{grid-template-columns:1fr;height:100vh}.ste-tool-container.is-fullscreen .ste-vis-card{height:100vh;box-shadow:none;border:none;border-radius:0}.ste-tool-container.is-fullscreen .ste-test-topbar{display:none}.ste-tool-container.is-fullscreen .ste-viewport-wrapper{height:calc(100vh - 120px)}.ste-fs-info{font-size:.8rem;font-family:var(--ste-mono);align-items:center;gap:.5rem;display:flex}.ste-fs-tag{color:var(--at-scope-cyan);font-weight:700}.ste-fs-sep{color:var(--at-scope-subtle)}.ste-fs-meta{color:var(--at-scope-muted)}.ste-fs-meta strong{color:var(--at-scope-text)}.ste-fs-controls{align-items:center;gap:.5rem;display:flex}.ste-fs-btn{background:var(--at-scope-fill-2);border:1px solid var(--at-scope-line);color:var(--at-scope-text);cursor:pointer;border-radius:100px;padding:.35rem .85rem;font-size:.78rem;font-weight:600;transition:all .15s}.ste-fs-btn:hover{background:var(--at-scope-cyan-tint);border-color:var(--at-scope-cyan)}.ste-fs-btn--exit{background:var(--at-scope-red-tint);border-color:var(--at-scope-red-line);color:#fca5a5}.ste-actions-strip{border-top:1px solid var(--ste-border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem;padding:.85rem 1.15rem;display:flex}.ste-actions-left{flex-wrap:wrap;align-items:center;gap:.6rem;display:flex}.ste-primary-channels-body{flex-direction:column;gap:1.1rem;padding:1.6rem;display:flex}.ste-big-channels-grid{grid-template-columns:repeat(3,1fr);gap:1rem;display:grid}.ste-big-chan-btn{border:1px solid var(--ste-border);background:var(--at-tint-fill);cursor:pointer;text-align:center;border-radius:16px;flex-direction:column;justify-content:center;align-items:center;padding:1.9rem 1rem;transition:all .18s;display:flex}.ste-big-chan-btn:hover{border-color:var(--ste-cyan);background:var(--at-brand-tint);transform:translateY(-2px)}.ste-big-chan--left{border-top:3px solid var(--at-scope-cyan)}.ste-big-chan--left:hover{border-color:var(--at-scope-cyan)}.ste-big-chan--right{border-top:3px solid var(--at-scope-violet)}.ste-big-chan--right:hover{border-color:var(--at-scope-violet)}.ste-big-chan-lbl{color:var(--ste-text);letter-spacing:.04em;font-size:1.5rem;font-weight:800}.ste-big-chan--left .ste-big-chan-lbl{color:var(--at-scope-cyan)}.ste-big-chan--right .ste-big-chan-lbl{color:var(--at-scope-violet)}.ste-big-chan-sub{color:var(--ste-text-subtle);margin-top:.45rem;font-size:.78rem}.ste-sub-channels-row{gap:.85rem;display:flex}.ste-btn-half{flex:1;justify-content:center}.ste-movement-body{flex-direction:column;gap:1rem;padding:1.6rem;display:flex}.ste-movement-desc{color:var(--ste-text-muted);margin:0;font-size:.95rem;line-height:1.6}.ste-movement-buttons{flex-wrap:wrap;align-items:center;gap:.75rem;display:flex}.ste-controls-body{flex-direction:column;gap:1.5rem;padding:1.6rem;display:flex}.ste-slider-unit{flex-direction:column;gap:.6rem;display:flex}.ste-slider-head{justify-content:space-between;align-items:center;display:flex}.ste-ctrl-lbl{letter-spacing:.07em;color:var(--ste-text-subtle);font-size:.8rem;font-weight:800}.ste-slider-readout{font-family:var(--ste-mono);color:var(--ste-text);font-size:1rem}.ste-range-slider{width:100%;accent-color:var(--ste-cyan);cursor:pointer;height:8px}.ste-slider-presets{flex-wrap:wrap;align-items:center;gap:.5rem;display:flex}.ste-quick-body{flex-direction:column;gap:1.1rem;padding:1.6rem;display:flex}.ste-quick-meta{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem;display:flex}.ste-quick-step-label{color:var(--ste-text);font-size:1.05rem;font-family:var(--ste-mono);font-weight:700}.ste-quick-timer-badge{font-size:.85rem;font-family:var(--ste-mono);color:var(--ste-cyan-light);background:var(--at-brand-tint);border:1px solid var(--at-brand-line);border-radius:100px;padding:.3rem .75rem}.ste-quick-controls{flex-wrap:wrap;align-items:center;gap:.75rem;display:flex}.ste-freq-body{flex-direction:column;gap:1.1rem;padding:1.6rem;display:flex}.ste-sub-group{flex-direction:column;gap:.55rem;display:flex}.ste-pills-wrap{flex-wrap:wrap;gap:.5rem;display:flex}.ste-pill-btn{background:var(--at-chip);border:1px solid var(--ste-border);color:var(--ste-text-muted);cursor:pointer;border-radius:12px;padding:.55rem 1rem;font-size:.85rem;font-weight:700;transition:all .15s}.ste-pill-btn:hover{color:var(--ste-text);border-color:var(--at-line-hover)}.ste-pill-btn.is-active{background:var(--at-brand-tint);border-color:var(--ste-cyan);color:var(--ste-cyan-light);font-weight:700}.ste-freq-pills-grid{grid-template-columns:repeat(5,1fr);gap:.5rem;display:grid}.ste-freq-btn{background:var(--at-chip);border:1px solid var(--ste-border);font-size:.82rem;font-family:var(--ste-mono);color:var(--ste-text-muted);cursor:pointer;text-align:center;border-radius:10px;padding:.6rem .2rem;font-weight:700;transition:all .15s}.ste-freq-btn:hover{color:var(--ste-text);border-color:var(--ste-cyan)}.ste-freq-btn.is-active{background:var(--at-brand-tint);border-color:var(--ste-cyan);color:var(--ste-cyan-light);font-weight:700}.ste-sweep-body{flex-direction:column;gap:1rem;padding:1.6rem;display:flex}.ste-sweep-desc{color:var(--ste-text-muted);margin:0;font-size:.95rem;line-height:1.6}.ste-sweep-buttons{flex-wrap:wrap;align-items:center;gap:.75rem;display:flex}.ste-phase-body{flex-direction:column;gap:1rem;padding:1.6rem;display:flex}.ste-phase-desc{color:var(--ste-text-muted);margin:0;font-size:.95rem;line-height:1.6}.ste-phase-buttons{align-items:center;gap:.75rem;display:flex}.ste-device-body,.ste-modes-body,.ste-obs-body,.ste-check-body,.ste-notes-body{flex-direction:column;gap:.9rem;padding:1.5rem 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