:root{
  --bg:#0b0b12; --panel:#14141f; --panel2:#1b1b2b; --line:#272740;
  --text:#ececf6; --muted:#8c8ca8; --accent:#8b5cf6; --accent2:#22d3ee;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:'Outfit',system-ui,sans-serif;color:var(--text);
  background:radial-gradient(900px 500px at 85% -10%,rgba(139,92,246,.2),transparent 60%),
             radial-gradient(700px 400px at -10% 110%,rgba(34,211,238,.12),transparent 60%),var(--bg);
  display:flex;flex-direction:column;min-height:100vh}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

.topbar{display:flex;justify-content:space-between;align-items:center;padding:14px 26px;
  background:rgba(20,20,31,.7);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.brand{color:var(--text);text-decoration:none;font-weight:700;font-size:18px;display:flex;gap:10px;align-items:center}
.dot{width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));box-shadow:0 0 14px var(--accent)}
.privacy{color:var(--muted);font-size:13px}

.layout{flex:1;display:grid;grid-template-columns:1fr 340px;gap:22px;padding:22px 26px;max-width:1400px;width:100%;margin:0 auto}
.stage-wrap{display:flex;flex-direction:column;align-items:center;gap:14px;min-width:0}

.stage{position:relative;width:100%;max-width:960px;aspect-ratio:16/9;max-height:calc(100vh - 170px);
  background:#05050a;border:1px solid var(--line);border-radius:22px;overflow:hidden;
  box-shadow:0 30px 70px rgba(0,0,0,.5)}
.stage video,.stage canvas{position:absolute;inset:0;width:100%;height:100%;transform:scaleX(-1)}
.stage video{object-fit:fill}
#debug-canvas{pointer-events:none}

.overlay{position:absolute;inset:0;display:grid;place-items:center;background:rgba(5,5,10,.72);backdrop-filter:blur(6px);transition:opacity .4s}
.overlay.hide{opacity:0;pointer-events:none}
.overlay-card{text-align:center;padding:28px;max-width:360px}
.overlay-card p{color:var(--muted);line-height:1.5;margin:0 0 18px}
.spinner{width:42px;height:42px;margin:0 auto 18px;border-radius:50%;border:3px solid var(--line);border-top-color:var(--accent2);animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.hint-badge{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);padding:9px 18px;border-radius:99px;
  background:rgba(20,20,31,.8);backdrop-filter:blur(10px);border:1px solid var(--line);font-size:13px;color:var(--text);white-space:nowrap;max-width:92%;overflow:hidden;text-overflow:ellipsis}

.toolbar{display:flex;gap:18px;align-items:center;flex-wrap:wrap;justify-content:center}
.toggle{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:14px;cursor:pointer}
.toggle input{accent-color:var(--accent)}

.btn{padding:12px 22px;border:0;border-radius:12px;font:inherit;font-weight:600;cursor:pointer;color:#fff;
  background:linear-gradient(135deg,var(--accent),#6366f1);box-shadow:0 8px 22px rgba(139,92,246,.35);transition:.2s}
.btn:hover:not(:disabled){transform:translateY(-2px)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.ghost{background:transparent;border:1px solid var(--line);box-shadow:none;color:var(--text)}
.btn.small{padding:8px 14px;font-size:13px}

.panel{background:linear-gradient(180deg,var(--panel),var(--panel2));border:1px solid var(--line);border-radius:20px;padding:22px;
  align-self:start;box-shadow:0 20px 50px rgba(0,0,0,.35)}
.panel h2{margin:0 0 14px;font-size:16px;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);font-weight:600}
.product-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:26px;max-height:340px;overflow:auto;padding-right:4px}
.product{background:#0e0e18;border:1px solid var(--line);border-radius:14px;padding:10px;cursor:pointer;text-align:left;color:var(--text);font:inherit;transition:.2s}
.product:hover{border-color:var(--accent);transform:translateY(-2px)}
.product.active{border-color:var(--accent2);box-shadow:0 0 0 2px rgba(34,211,238,.25)}
.product .pimg{aspect-ratio:1;border-radius:10px;background:linear-gradient(135deg,#1d1d33,#10101c);display:grid;place-items:center;font-size:30px;overflow:hidden;margin-bottom:8px}
.product .pimg img{width:100%;height:100%;object-fit:cover}
.product .pname{font-size:13px;font-weight:500;line-height:1.3}
.product .pprice{font-size:12px;color:var(--muted);margin-top:2px}

.sliders label{display:block;margin-bottom:14px;font-size:14px;color:var(--muted)}
.sliders output{float:right;color:var(--accent2);font-variant-numeric:tabular-nums}
.sliders input[type=range]{width:100%;accent-color:var(--accent);margin-top:6px}
.note{font-size:12px;color:var(--muted);line-height:1.5;margin:16px 0 0}

@media(max-width:900px){
  .layout{grid-template-columns:1fr;padding:14px}
  .stage{max-height:62vh}
  .privacy{display:none}
}