:root{
  --bg:#0b0f14; --text:#e6eef7; --muted:#9fb0c3; --border:rgba(255,255,255,0.08);
  --good:#2dd36f; --bad:#ff4d4f; --accent:#3aa3ff;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0;background:var(--bg);color:var(--text);overflow:hidden}
.topbar{
  padding:12px 14px; display:flex; gap:12px; align-items:center; justify-content:space-between;
  background:linear-gradient(180deg, rgba(255,255,255,0.03), transparent);
  border-bottom:1px solid var(--border);
}
.brand{display:flex;gap:10px;align-items:center}
.dot{width:10px;height:10px;border-radius:999px;background:var(--accent);box-shadow:0 0 18px rgba(58,163,255,.7)}
.title{font-weight:700}.subtitle{font-size:12px;color:var(--muted);margin-top:2px}
.controls{display:flex;gap:10px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.seg{display:flex;border:1px solid var(--border);border-radius:999px;overflow:hidden;background:rgba(255,255,255,.03)}
.seg button{appearance:none;border:0;background:transparent;color:var(--muted);padding:10px 12px;font-weight:600}
.seg button.on{background:rgba(58,163,255,.18);color:var(--text)}
.toggle{display:flex;gap:8px;align-items:center;padding:8px 10px;border:1px solid var(--border);border-radius:999px;background:rgba(255,255,255,.02);color:var(--muted);font-size:13px}
.main{padding:12px}
.chartWrap{
  position:relative; width:100%; height:calc(100vh - 96px);
  border:1px solid var(--border); border-radius:14px; overflow:hidden;
  background:#081018;
}
#canvas{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none}
.hud{
  position:absolute; left:10px; top:10px; right:10px;
  background:rgba(15,22,32,0.72); border:1px solid var(--border); border-radius:12px;
  padding:8px 10px; backdrop-filter: blur(8px); z-index:10;
}
.hudRow{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.hudRow.small{margin-top:4px;font-size:12px;color:var(--muted);min-height:16px}
.k{color:var(--muted);font-size:12px;font-weight:700}.v{font-size:12px;font-weight:700}