:root{
  --bg:#0a1018;--panel:#0a0f16;--surface:#111823;--ink:#eaf1e6;--muted:#8fa090;--line:#1f2a26;
  --accent:#b6f06a;--accent-ink:#0c1406;--glow:#d2ff96;--moon:#e8ecd8;
  --font:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,Menlo,Consolas,monospace;color-scheme:dark;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;}
html,body{margin:0;height:100%;background:var(--bg);color:var(--ink);font-family:var(--font);overflow:hidden;}
.app{display:grid;grid-template-columns:1fr 312px;height:100vh;height:100svh;}
.stage{position:relative;overflow:hidden;background:#0a1018;touch-action:none;}
#view{width:100%;height:100%;display:block;cursor:crosshair;}
.topbar{position:absolute;top:0;left:0;right:0;display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:linear-gradient(180deg,rgba(6,10,16,0.55),transparent);pointer-events:none;}
.brand{font-weight:700;font-size:1.05rem;letter-spacing:0.01em;text-shadow:0 1px 7px rgba(0,0,0,0.8);}
.brand small{display:block;font-weight:400;font-size:0.7rem;letter-spacing:0.05em;color:var(--muted);text-transform:uppercase;margin-top:2px;}
.topbtns{display:flex;gap:8px;pointer-events:auto;}
.topbtns button{font-size:1rem;width:42px;height:42px;border-radius:10px;border:1px solid rgba(150,200,140,0.22);background:rgba(10,16,22,0.6);color:var(--ink);cursor:pointer;backdrop-filter:blur(4px);}
.topbtns button:hover{border-color:var(--accent);}
.stats{position:absolute;left:0;right:0;bottom:14px;text-align:center;font-family:var(--mono);font-size:0.8rem;color:#d6e6cc;text-shadow:0 1px 6px rgba(0,0,0,0.9);pointer-events:none;letter-spacing:0.02em;}
.hint{position:absolute;left:50%;top:52%;transform:translate(-50%,-50%);text-align:center;color:rgba(234,241,230,0.72);font-size:0.9rem;letter-spacing:0.03em;pointer-events:none;text-shadow:0 1px 8px rgba(0,0,0,0.8);animation:fade 6s ease forwards;}
@keyframes fade{0%,58%{opacity:1;}100%{opacity:0;}}
.lockbar{position:absolute;inset:0;display:none;align-items:flex-start;justify-content:center;background:rgba(6,10,16,0.3);padding-top:18px;z-index:20;}
.slide{position:relative;width:min(80%,340px);height:54px;border-radius:27px;background:rgba(10,16,22,0.82);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;overflow:hidden;}
.slidelbl{color:var(--muted);font-size:0.85rem;letter-spacing:0.05em;}
.knob{position:absolute;left:3px;top:3px;width:48px;height:48px;border-radius:50%;background:var(--accent);color:var(--accent-ink);display:flex;align-items:center;justify-content:center;font-weight:800;cursor:grab;touch-action:none;box-shadow:0 0 14px rgba(182,240,106,0.5);}
.panel{background:var(--panel);border-left:1px solid var(--line);display:flex;flex-direction:column;overflow-y:auto;padding:13px;gap:11px;}
.pnl{background:var(--surface);border:1px solid var(--line);border-radius:13px;padding:12px;}
.pnl h2{margin:0 0 9px;font-size:0.66rem;letter-spacing:0.09em;text-transform:uppercase;color:var(--muted);}
.lead{font-size:0.82rem;line-height:1.55;color:#c4d4bc;margin:0 0 4px;}
.lead b{color:var(--ink);}
.row{display:flex;align-items:center;gap:11px;margin-top:6px;}
.row label{font-size:0.78rem;color:var(--muted);min-width:58px;}
.row input[type=range]{flex:1;accent-color:var(--accent);}
.val{font-family:var(--mono);font-size:0.82rem;color:var(--glow);min-width:60px;text-align:right;}
.btn{width:100%;font:inherit;font-size:0.86rem;font-weight:600;padding:12px;margin-top:8px;cursor:pointer;background:var(--accent);color:var(--accent-ink);border:none;border-radius:10px;}
.btn:hover{filter:brightness(1.08);}
.hint2{font-size:0.73rem;color:var(--muted);line-height:1.5;margin:8px 0 0;}
.foot{font-size:0.7rem;color:var(--muted);line-height:1.55;margin:2px 2px 0;-webkit-user-select:none;user-select:none;}
.foot i{color:#b7c7ad;}
@media (max-width:820px){
  .app{grid-template-columns:1fr;}
  .panel{position:absolute;top:0;right:0;bottom:0;width:300px;max-width:86%;transform:translateX(100%);transition:transform 0.22s ease;z-index:30;box-shadow:-8px 0 30px rgba(0,0,0,0.6);}
  .panel.open{transform:translateX(0);}
}