:root{
  --bg:#0b0e14; --panel:#131824; --panel2:#1a2130; --line:#242d3e;
  --txt:#e9eef6; --muted:#8a99b3; --accent:#5b8cff; --accent2:#7a5bff;
  --green:#36d399; --gold:#f0b000;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:
  radial-gradient(120% 80% at 50% -10%, #182033 0%, var(--bg) 55%) fixed;color:var(--txt);min-height:100dvh}
.top{display:flex;align-items:center;justify-content:space-between;padding:16px 22px;border-bottom:1px solid var(--line)}
.brand{font-weight:800;font-size:1.05rem;display:flex;align-items:center;gap:10px}
.brand small{color:var(--muted);font-weight:600;font-size:.72rem;text-transform:uppercase;letter-spacing:.1em}
.brand .dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));box-shadow:0 0 12px var(--accent)}
.top .sub{color:var(--muted);font-size:.8rem}
.wrap{max-width:720px;margin:0 auto;padding:26px 18px 80px}
.hidden{display:none !important}

.drop{border:2px dashed var(--line);border-radius:20px;background:var(--panel);padding:54px 20px;text-align:center;cursor:pointer;transition:.15s}
.drop.over{border-color:var(--accent);background:var(--panel2)}
.dz-icon{font-size:2.6rem;margin-bottom:10px}.dz-title{font-weight:700;font-size:1.1rem}
.dz-sub{color:var(--muted);font-size:.85rem;margin-top:5px}

.meta{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:2px 2px 14px;flex-wrap:wrap}
.fname{font-weight:700;font-size:1.05rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:60vw}
.finfo{color:var(--muted);font-size:.82rem}

.wave-card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:14px;margin-bottom:16px}
#wave{width:100%;height:130px;display:block;border-radius:8px;cursor:pointer}
.transport{display:flex;align-items:center;gap:12px;margin-top:12px}
.pbtn{width:44px;height:44px;flex:0 0 auto;border-radius:50%;border:0;cursor:pointer;color:#fff;font-size:1.05rem;
  background:linear-gradient(135deg,var(--accent),var(--accent2));box-shadow:0 6px 16px rgba(91,140,255,.4)}
.pbtn:active{transform:scale(.94)}
.time{color:var(--muted);font-size:.8rem;font-variant-numeric:tabular-nums;min-width:38px}
.seek{flex:1;height:8px;border-radius:999px;background:var(--panel2);overflow:hidden;cursor:pointer}
.seek-fill{height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent2))}

.knobs{display:flex;gap:16px;justify-content:center;margin-bottom:16px;flex-wrap:wrap}
.knobcell{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:16px;text-align:center;flex:1 1 180px;min-width:160px}
.knob{width:130px;height:130px;margin:0 auto;position:relative;cursor:ns-resize;touch-action:none;user-select:none}
.knob svg{width:100%;height:100%;transform:rotate(135deg)}
.kbg{fill:none;stroke:var(--panel2);stroke-width:9}
.karc{fill:none;stroke:var(--accent);stroke-width:9;stroke-linecap:round;transition:stroke-dashoffset .05s}
.karc.kgold{stroke:var(--gold)}
.karc.kgreen{stroke:var(--green)}
.kptr{stroke:#fff;stroke-width:3;stroke-linecap:round;transform-box:fill-box}
.knob svg .kptr{transform:rotate(-135deg);transform-origin:60px 60px}
.kval{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.3rem;pointer-events:none}
.klabel{margin-top:10px;font-size:.85rem;color:var(--muted);font-weight:600}

.monitor{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:16px;margin-bottom:14px}
.mrow{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.mlbl{width:34px;font-size:.72rem;font-weight:800;color:var(--muted);letter-spacing:.05em}
.mtrack{position:relative;flex:1;height:16px;border-radius:5px;overflow:hidden;
  background:linear-gradient(90deg,#2a7d55 0%,#36d399 55%,#36d399 70%,#f0b000 85%,#e04b4b 100%)}
.mtrack::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(90deg,transparent 0,transparent calc(20% - 1px),rgba(11,14,20,.5) calc(20% - 1px),rgba(11,14,20,.5) 20%)}
.mmask{position:absolute;top:0;right:0;bottom:0;width:100%;background:var(--panel2);transition:width .05s;z-index:2}
.mpeak{position:absolute;top:0;bottom:0;width:2px;background:#fff;left:0;z-index:3;box-shadow:0 0 4px #fff;transition:left .08s}
.mdb{width:52px;text-align:right;font-size:.74rem;color:var(--muted);font-variant-numeric:tabular-nums}
.mscale{display:flex;justify-content:space-between;margin:2px 52px 10px 44px;font-size:.6rem;color:#5b6679;font-variant-numeric:tabular-nums}
.mred{text-align:center;font-size:.85rem;color:var(--muted);margin-top:4px;border-top:1px solid var(--line);padding-top:10px}
.mred #redVal{color:var(--green);font-weight:800;font-size:1.05rem}
.livedot{color:var(--green);margin-left:4px;transition:opacity .15s}

.tip{color:var(--muted);font-size:.8rem;text-align:center;margin:4px 0 16px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;border:0;cursor:pointer;
  font-weight:800;font-size:1rem;padding:13px;border-radius:13px;color:#fff;
  background:linear-gradient(135deg,var(--accent),var(--accent2))}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--muted)}

.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%) translateY(120px);background:#fff;color:#0b0e14;
  font-weight:700;padding:12px 18px;border-radius:999px;box-shadow:0 10px 30px rgba(0,0,0,.5);z-index:50;transition:transform .3s;max-width:92vw;text-align:center}
.toast.show{transform:translateX(-50%) translateY(0)}
.prog{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin-bottom:14px}
.prog-bar{height:12px;border-radius:999px;background:var(--panel2);overflow:hidden}
.prog-fill{height:100%;width:0;border-radius:999px;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .25s}
.prog-txt{margin-top:8px;font-size:.82rem;color:var(--muted);display:flex;gap:8px}
.prog-txt #enhPct{color:var(--accent);font-weight:800}
.rbtns{display:flex;gap:10px;flex-wrap:wrap}
.rbtns .btn{width:auto;flex:1 1 180px}
.btn.dl{background:linear-gradient(135deg,var(--green),#2bb07e)}
.knobcell.big{flex:1 1 100%;max-width:320px;margin:0 auto}
.knobcell.big .knob{width:170px;height:170px}
.knobcell.big .kval{font-size:1.6rem}