:root{
  --bg:#070812;
  --panel:rgba(255,255,255,.08);
  --panel2:rgba(255,255,255,.12);
  --text:#f6f7fb;
  --muted:#aeb4c6;
  --line:rgba(255,255,255,.14);
  --accent:#7dd3fc;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
body{overflow:hidden}
a{color:inherit}
#app{position:fixed;inset:0;display:grid;grid-template-columns:340px 1fr}
.sidebar{
  position:relative;z-index:10;padding:22px;
  background:linear-gradient(180deg,rgba(10,12,24,.96),rgba(10,12,24,.84));
  border-right:1px solid var(--line);backdrop-filter:blur(14px);overflow:auto;
}
.demo{
  position:relative;min-width:0;min-height:100vh;
  background:
    radial-gradient(circle at 70% 15%, rgba(125,211,252,.18), transparent 35%),
    radial-gradient(circle at 20% 80%, rgba(168,85,247,.14), transparent 35%),
    #070812;
}
canvas{display:block;width:100%;height:100%}
.kicker{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);font-weight:700}
h1{font-size:28px;line-height:1.05;margin:10px 0 10px}
p{font-size:14px;line-height:1.55;color:var(--muted);margin:0 0 16px}
.badge{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:#dbeafe;background:rgba(125,211,252,.12);border:1px solid rgba(125,211,252,.24);border-radius:999px;padding:7px 10px;margin:6px 6px 0 0}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:14px;margin:16px 0}
.row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:10px 0}
button,select,input[type=range]{
  width:100%;border:1px solid var(--line);background:rgba(255,255,255,.08);color:var(--text);
  border-radius:12px;padding:10px 11px;font:inherit;outline:none
}
button{cursor:pointer;transition:.2s transform,.2s background}
button:hover{transform:translateY(-1px);background:rgba(255,255,255,.14)}
button.active{background:rgba(125,211,252,.20);border-color:rgba(125,211,252,.55)}
label{font-size:12px;color:#cbd5e1;margin:11px 0 6px;display:block}
.metric{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-top:1px solid var(--line);font-size:13px}
.metric b{font-weight:700;color:#fff}
.hud{
  position:absolute;right:22px;top:22px;z-index:8;max-width:330px;
  padding:14px;border-radius:18px;background:rgba(7,8,18,.68);
  border:1px solid var(--line);backdrop-filter:blur(12px)
}
.hud h2{font-size:16px;margin:0 0 6px}
.hud p{margin:0;font-size:13px}
.nav{
  position:absolute;left:22px;bottom:22px;right:22px;z-index:8;display:flex;gap:10px;flex-wrap:wrap
}
.nav a{
  text-decoration:none;font-size:13px;border:1px solid var(--line);background:rgba(255,255,255,.08);
  border-radius:999px;padding:9px 12px;color:#e5e7eb
}
.nav a:hover{background:rgba(255,255,255,.14)}
@media(max-width:900px){
  #app{grid-template-columns:1fr}
  .sidebar{position:absolute;left:12px;top:12px;width:min(360px,calc(100% - 24px));max-height:46vh;border-radius:22px;border:1px solid var(--line)}
  .hud{top:auto;right:12px;left:12px;bottom:12px;max-width:none}
  .nav{display:none}
}