:root{--bg: #0b0e14;--panel: #141a23;--panel-2: #1b2330;--border: #283342;--text: #e6edf3;--muted: #8693a5;--accent: #4cc2ff;--accent-2: #3fb950;--raw: #f0883e;--warn: #f0883e;--danger: #f85149;--radius: 14px;font-synthesis:none}*{box-sizing:border-box}body{margin:0;background:radial-gradient(1200px 600px at 75% -15%,#182433 0%,var(--bg) 60%);color:var(--text);font-family:Segoe UI,system-ui,-apple-system,sans-serif;line-height:1.45;padding-bottom:48px}.topbar{max-width:1180px;margin:0 auto;padding:24px 24px 6px}.topbar h1{margin:0;font-size:24px}.sub{margin:4px 0 0;color:var(--muted);font-size:14px}main{max-width:1180px;margin:0 auto;padding:0 24px}.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.panel h2{margin:0 0 12px;font-size:13px;text-transform:uppercase;letter-spacing:.6px;color:var(--muted)}.transport{position:sticky;top:10px;z-index:20;max-width:1180px;margin:8px auto 16px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;backdrop-filter:blur(6px);background:#141a23eb}.spacer{flex:1}button{font:inherit;cursor:pointer;border-radius:9px;border:1px solid var(--border);background:var(--panel-2);color:var(--text);padding:9px 16px;transition:background .15s,border-color .15s,opacity .15s,transform .05s}button:hover{border-color:var(--accent)}button:active{transform:translateY(1px)}button.primary{background:var(--accent);color:#04222f;border-color:transparent;font-weight:600}button.primary.running{background:var(--danger);color:#2a0606}button.ghost{background:transparent}button.small{padding:5px 11px;font-size:12.5px}button:disabled{opacity:.45;cursor:not-allowed}.master{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);user-select:none}.master input{width:16px;height:16px;accent-color:var(--accent-2)}.seg{display:flex;align-items:center;gap:6px;background:var(--panel-2);border:1px solid var(--border);border-radius:10px;padding:4px 6px}.seg-label{font-size:12px;color:var(--muted);padding:0 4px}.seg-btn{padding:5px 12px;border:none;background:transparent;border-radius:7px;font-size:13px;color:var(--muted)}.seg-btn:hover{color:var(--text)}.seg-btn.active{background:var(--accent);color:#04222f;font-weight:600}.badge{padding:3px 11px;border-radius:999px;font-size:12px;font-weight:600;border:1px solid var(--border)}.badge.idle{color:var(--muted)}.badge.running{color:var(--accent-2);border-color:var(--accent-2)}.badge.error{color:var(--danger);border-color:var(--danger)}.hint{color:var(--muted);font-size:12px;margin:10px 0 0}.hint.inline{margin:0}.hint code{background:var(--panel-2);padding:1px 5px;border-radius:5px}.mono{font-family:Cascadia Code,ui-monospace,Courier New,monospace;font-variant-numeric:tabular-nums}.hero{display:grid;grid-template-columns:1.6fr 1fr;gap:18px;margin-bottom:16px}.scope-wrap{position:relative}#scope{width:100%;height:220px;background:#0a0d13;border:1px solid var(--border);border-radius:10px;display:block}.legend{position:absolute;top:10px;left:12px;display:flex;gap:14px;font-size:11.5px}.key{display:flex;align-items:center;gap:6px;color:var(--muted)}.key:before{content:"";width:14px;height:3px;border-radius:2px;background:var(--accent)}.key.raw:before{background:var(--raw)}.readouts{display:flex;flex-direction:column;gap:12px;justify-content:center}.ro{display:grid;grid-template-columns:84px 1fr 54px;align-items:center;gap:10px}.ro-label{font-size:12.5px;color:var(--muted)}.ro .mono{text-align:right;font-size:12.5px}.meter{height:12px;background:var(--panel-2);border-radius:6px;overflow:hidden;border:1px solid var(--border)}.meter-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--accent-2),var(--accent));transition:width .05s linear}.meter-fill.raw{background:linear-gradient(90deg,#b06a2c,var(--raw))}.meter-fill.noise{background:linear-gradient(90deg,#54606e,var(--warn))}.chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:2px}.chip{display:flex;align-items:center;gap:7px;background:var(--panel-2);border:1px solid var(--border);border-radius:8px;padding:6px 10px;font-size:12.5px;color:var(--muted)}.dot{width:11px;height:11px;border-radius:50%;background:#39414d;transition:background .1s,box-shadow .2s}.dot.on{background:var(--accent-2);box-shadow:0 0 0 4px #3fb95033}.dot.link{background:var(--accent);box-shadow:0 0 0 4px #4cc2ff33}.presets{margin-bottom:16px}.preset-row{display:flex;gap:10px;flex-wrap:wrap}.preset-btn{display:flex;flex-direction:column;align-items:flex-start;gap:2px;padding:9px 14px;text-align:left}.preset-btn small{color:var(--muted);font-size:11px;font-weight:400}.preset-btn.active{border-color:var(--accent);background:#4cc2ff1a}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:16px}.feature{transition:border-color .15s,opacity .15s}.feature.off{opacity:.55}.grid.bypassed{opacity:.5;pointer-events:none}.feature-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.feature-head h2{margin:0}.mini-note{font-size:11px;color:var(--muted)}.toggle{position:relative;display:inline-block;width:42px;height:24px;cursor:pointer}.toggle input{position:absolute;opacity:0;width:0;height:0}.toggle .track{position:absolute;inset:0;background:var(--panel-2);border:1px solid var(--border);border-radius:999px;transition:background .15s,border-color .15s}.toggle .track:before{content:"";position:absolute;top:3px;left:3px;width:16px;height:16px;border-radius:50%;background:var(--muted);transition:transform .15s,background .15s}.toggle input:checked+.track{background:#3fb95040;border-color:var(--accent-2)}.toggle input:checked+.track:before{transform:translate(18px);background:var(--accent-2)}.slider,.check,.field{display:flex;align-items:center;gap:10px;margin:9px 0;font-size:14px}.slider{justify-content:space-between}.slider input[type=range]{flex:1;accent-color:var(--accent)}.check{color:var(--text)}.check input{accent-color:var(--accent-2);width:16px;height:16px}.field{flex-direction:column;align-items:stretch;gap:6px;color:var(--muted);font-size:13px}.field input[type=text]{background:var(--panel-2);border:1px solid var(--border);color:var(--text);border-radius:8px;padding:9px 11px;font:inherit}output{min-width:42px;text-align:right;color:var(--accent);font-variant-numeric:tabular-nums}.dtmf-display{background:var(--panel-2);border:1px solid var(--border);border-radius:8px;padding:12px;font-size:22px;letter-spacing:6px;min-height:28px;word-break:break-all;color:var(--accent)}.dtmf-pad{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin:12px 0}.dtmf-key{text-align:center;padding:8px 0;border-radius:7px;background:var(--panel-2);border:1px solid var(--border);font-family:ui-monospace,monospace;font-size:14px;color:var(--muted);transition:background .05s,color .05s,transform .05s}.dtmf-key.hit{background:var(--accent);color:#04222f;transform:scale(1.06)}.status-line{display:flex;align-items:center;gap:8px;margin-top:12px;font-size:13px;color:var(--muted)}@media (max-width: 760px){.hero{grid-template-columns:1fr}}