:root{
  --bg:#0b1020;
  --card:#0f1730;
  --muted:#92a0c0;
  --text:#eaf0ff;
  --border:#1c2a55;
  --grid:#172550;
  --accent:#6ea8ff;
  --good:#2fe08d;
  --bad:#ff4d6d;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  background: radial-gradient(1200px 800px at 30% 0%, #121a36 0%, var(--bg) 55%, #060a14 100%);
  color:var(--text);
}

.topbar{
  display:flex;
  gap:16px;
  align-items:flex-start;
  justify-content:space-between;
  padding:18px 18px 0;
  flex-wrap:wrap;
}

.title .h1{
  font-size:18px;
  font-weight:700;
  letter-spacing:.2px;
}
.title .sub{
  margin-top:6px;
  font-size:12px;
  color:var(--muted);
}

.controls{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  align-items:center;
}
.seg{
  display:flex;
  gap:8px;
  padding:6px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.03);
  border-radius:14px;
}

.btn{
  appearance:none;
  border:1px solid transparent;
  background: transparent;
  color:var(--text);
  font-size:12px;
  padding:8px 10px;
  border-radius:10px;
  cursor:pointer;
  transition: transform .06s ease, background .18s ease, border-color .18s ease, color .18s ease;
  user-select:none;
}
.btn:hover{
  border-color: rgba(255,255,255,.10);
  background: rgba(255,255,255,.06);
}
.btn:active{ transform: translateY(1px); }
.btn.active{
  background: rgba(110,168,255,.18);
  border-color: rgba(110,168,255,.25);
  color: #eef4ff;
}

.wrap{
  padding:14px 18px 18px;
  display:flex;
  justify-content:center;
}
.card{
  width:min(1100px, 100%);
  border:1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
  border-radius:18px;
  box-shadow: 0 20px 60px rgba(0,0,0,.35);
  overflow:hidden;
}

.chart-head{
  padding:16px 16px 10px;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  border-bottom:1px solid rgba(255,255,255,.06);
}

.meta{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
}
.kv{min-width:120px}
.k{
  font-size:11px;
  color:var(--muted);
}
.v{
  margin-top:6px;
  font-size:14px;
  font-weight:650;
  letter-spacing:.2px;
}
.v.good{color:var(--good)}
.v.bad{color:var(--bad)}

.hint{
  font-size:12px;
  color:var(--muted);
  opacity:.95;
  display:flex;
  gap:8px;
  align-items:center;
}

.chart-shell{
  position:relative;
  height: 520px;
}
canvas{
  width:100%;
  height:100%;
  display:block;
}

.tooltip{
  position:absolute;
  pointer-events:none;
  left:0; top:0;
  transform: translate(12px, 12px);
  background: rgba(8, 12, 24, .92);
  border:1px solid rgba(255,255,255,.10);
  border-radius:12px;
  padding:10px 12px;
  font-size:12px;
  line-height:1.35;
  color: var(--text);
  box-shadow: 0 18px 45px rgba(0,0,0,.35);
  backdrop-filter: blur(8px);
  min-width: 180px;
}
.tooltip.hidden{display:none}
.tooltip .row{
  display:flex;
  justify-content:space-between;
  gap:12px;
}
.tooltip .key{color:var(--muted)}
.tooltip .val{font-variant-numeric: tabular-nums}

.legend{
  padding:12px 16px 16px;
  display:flex;
  gap:10px;
  align-items:center;
  color:var(--muted);
  font-size:12px;
  border-top:1px solid rgba(255,255,255,.06);
}
.dot{
  width:10px; height:10px;
  border-radius:999px;
  display:inline-block;
  margin-left:10px;
}
.dot.price{background: var(--accent)}
.dot.ma20{background: rgba(47,224,141,.9)}
.dot.ma50{background: rgba(255,198,61,.95)}