:root{
  --bg:#0a0c10; --surface:#0e1218; --panel:#131a23; --edge:#1b2635;
  --ink:#e7ecf3; --muted:#9aa4b2; --accent:#86a8ff; --ok:#22c55e; --warn:#f59e0b;
}
*{box-sizing:border-box} html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Arial}
.container{max-width:980px;margin:28px auto;padding:0 16px}
h1{margin:0 0 12px;font-weight:700;font-size:22px}
.grid{display:block}
.card{background:var(--surface);border:1px solid var(--edge);border-radius:18px;padding:16px;margin:16px 0;box-shadow:0 0 0 1px rgba(0,0,0,0.2) inset}
.card h2{margin:0 0 6px;font-size:18px}
.card p.desc{margin:2px 0 12px;color:var(--muted);font-size:13px}

/* Help blocks */
details.help{margin-top:10px;border:1px dashed var(--edge);border-radius:12px;padding:10px}
details.help[open]{background:#0f141d}
details.help summary{cursor:pointer;list-style:none;color:var(--ink);font-weight:600}
details.help summary::marker{display:none}
details.help .help-body{color:var(--muted);font-size:13px;margin-top:8px}
details.help ul{margin:6px 0 0 18px;padding:0}
details.help li{margin:4px 0}

/* Inputs */
.inputs3{display:grid;grid-template-columns:repeat(3,minmax(220px,1fr));gap:12px}
.row{display:grid;gap:8px;grid-template-columns:160px 1fr;align-items:center}
.row>label{color:var(--muted);font-size:13px}
.row>input,.row>select{height:44px;padding:10px 12px;border-radius:12px;background:var(--panel);color:var(--ink);border:1.5px solid #2a3a50;outline:none;width:100%;font-size:16px}
.row>input::placeholder{color:#aab3c2}
.row>input:focus,.row>select:focus{border-color:#4a6a9b;box-shadow:0 0 0 3px rgba(134,168,255,.15)}
input[type=number]{appearance:textfield;-moz-appearance:textfield}
input[type=number]::-webkit-outer-spin-button,input[type=number]::-webkit-inner-spin-button{appearance:none;margin:0}

.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:10px}
.stat{background:var(--panel);border:1px solid var(--edge);border-radius:12px;padding:12px}
.stat span{display:block;color:var(--muted);font-size:12px;margin-bottom:4px}

button{background:#0f172a;border:1px solid var(--edge);color:var(--ink);border-radius:12px;padding:10px 14px;cursor:pointer;font-size:15px}
button:hover{border-color:#2b3a50}

.table{width:100%;border-collapse:collapse;font-size:13px}
.table th,.table td{padding:10px;border-bottom:1px solid var(--edge);text-align:left}
.table th{color:var(--muted);font-weight:600}

/* Thresholds */
.thr{margin-top:12px;border:1px dashed var(--edge);border-radius:12px;padding:12px}
.thr h3{margin:0 0 8px;font-size:14px;color:var(--muted)}
.thrgrid{display:grid;grid-template-columns:repeat(4,minmax(160px,1fr));gap:12px}
.controls{display:flex;gap:12px;align-items:center;margin-top:10px}
.controls label{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:13px}

/* R7 canvas */
canvas.plot{width:100%;height:240px;background:#0f141d;border:1px solid var(--edge);border-radius:14px}

/* Drawdown slider (ruler) + wheel */
.dd-flex{display:grid;grid-template-columns:1fr 200px;gap:16px;align-items:center}
.ruler{margin:8px 0 12px;position:relative}
.ruler input[type=range]{width:100%;height:6px;border-radius:999px;background:#1e2a3a;outline:none;-webkit-appearance:none}
.ruler input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;height:18px;width:18px;border-radius:50%;background:var(--accent);border:1px solid #335;cursor:pointer}
.ruler .ticks{position:absolute;left:0;right:0;top:-8px;height:10px;display:flex;justify-content:space-between}
.ruler .ticks i{display:block;width:1px;height:10px;background:#2b3a50;opacity:.8}
.wheel{display:flex;gap:12px;align-items:center}
#dd_wheel{width:180px;height:180px;border-radius:50%;border:1px solid var(--edge);background:#0f141d}
.wheel .readout{min-width:110px}