:root{
  --bg:#0f1720;
  --card:#0b1220cc;
  --accent:#00b894;
  --muted:#cbd5e1;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0;background:var(--bg);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial;color:var(--muted)}
canvas{display:block;width:100vw;height:100vh}
#panel{
  position: absolute;
  left: 50%;
  bottom: 6vh;
  transform: translateX(-50%) translateY(200%);
  width: min(92vw,520px);
  max-height: 48vh;
  background: linear-gradient(180deg, rgba(8,12,18,0.95), rgba(8,12,18,0.9));
  border-radius: 12px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.6);
  padding: 14px 16px;
  color: #e6eef8;
  transition: transform 300ms cubic-bezier(.2,.9,.2,1), opacity 200ms;
  opacity: 0;
  overflow: auto;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,0.03);
  touch-action: manipulation;
}
#panel.show{transform: translateX(-50%) translateY(0); opacity:1}
#close{position:absolute;right:8px;top:8px;background:transparent;border:none;color:var(--muted);font-size:18px;padding:8px;border-radius:8px;cursor:pointer}
#panel-title{font-weight:700;font-size:16px;margin-bottom:8px;color:var(--accent)}
#panel-body{font-size:14px;line-height:1.4;color:#d6e7f4}

/* make canvas focusable and reduce selection */
canvas:focus{outline:none}
@media (min-width:900px){
  #panel{bottom:6vh}
}