*{box-sizing:border-box}
:root{
  --paper:#17120d; --ink:#f6efe4; --muted:#a89780; --line:#332a20;
  --panel:#1f1913; --accent:#ffb454; --accent-glow:rgba(255,180,84,.3);
  --warm:#ff7a59;
}
@media(prefers-color-scheme:light){
  :root{--paper:#faf5ec;--ink:#221a10;--muted:#7d6c56;--line:#e4d8c6;--panel:#ffffff;--accent:#c76b00;--accent-glow:rgba(199,107,0,.25);--warm:#c2451f}
}
html,body{margin:0;min-height:100vh}
body{background:var(--paper);color:var(--ink);font-family:ui-sans-system,system-ui,-apple-system,"Segoe UI",Roboto,Inter,sans-serif;display:flex;flex-direction:column}
.back{margin:18px 24px 0;color:var(--muted);text-decoration:none;font-size:14px}
.back:hover{color:var(--ink)}
.head{max-width:1100px;width:100%;margin:0 auto;padding:8px 24px 0}
.eyebrow{letter-spacing:.14em;text-transform:uppercase;font-size:12px;color:var(--muted);margin:0 0 6px}
h1{margin:0;font-size:42px;letter-spacing:-.02em;line-height:1}
.lede{color:var(--muted);max-width:68ch;line-height:1.55;margin:10px 0 0}
.lede strong{color:var(--ink)}
.layout{max-width:1100px;width:100%;margin:0 auto;display:grid;grid-template-columns:1.25fr .75fr;gap:20px;padding:20px 24px 28px;flex:1}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:0 12px 34px rgba(0,0,0,.3)}
#runway{width:100%;height:auto;display:block;border-radius:12px;border:1px solid var(--line);background:#0e0b08;cursor:crosshair}
#runway:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.gauges{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:12px}
.gauge{border:1px solid var(--line);border-radius:10px;padding:8px 10px}
.gauge span{display:block;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.gauge strong{display:block;font:700 18px/1.3 ui-monospace,Menlo,monospace;margin-top:2px;color:var(--accent)}
.status{min-height:22px;color:var(--muted);font-size:14px;margin:10px 0 0}
.bench-title{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 10px}
.field{margin-bottom:12px}
.field label{display:flex;justify-content:space-between;font-size:13px;margin-bottom:6px;color:var(--muted)}
.field output{font-family:ui-monospace,Menlo,monospace;color:var(--accent)}
.field select,.field input[type="range"]{width:100%}
.field select{background:var(--paper);color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:9px 12px;font:500 14px/1.3 system-ui}
.field select:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
input[type="range"]{accent-color:var(--accent);margin:4px 0}
.row{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
button{border:1px solid var(--line);background:var(--paper);color:var(--ink);padding:10px 14px;border-radius:10px;font:600 13px/1 system-ui;cursor:pointer;transition:border-color .15s,transform .15s}
button:hover{border-color:var(--accent);transform:translateY(-1px)}
button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
button.primary{background:var(--accent);color:#241301;border-color:transparent}
button.ghost{background:transparent}
.hint{font-size:12px;color:var(--muted);line-height:1.7;margin:14px 0 0}
.hint kbd{border:1px solid var(--line);border-bottom-width:2px;background:var(--paper);padding:1px 6px;border-radius:6px;font-size:11px;color:var(--ink)}
.foot{display:flex;justify-content:space-between;gap:12px;padding:14px 24px 20px;color:var(--muted);font-size:13px;border-top:1px solid var(--line);max-width:1100px;width:100%;margin:0 auto;flex-wrap:wrap}
.foot a{color:var(--muted);text-decoration:none}
.foot a:hover{color:var(--ink)}
@media(max-width:900px){.layout{grid-template-columns:1fr}h1{font-size:32px}.gauges{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}