body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  margin: 0;
  background: #fafafa;
  color: #111;
}

.topbar {
  padding: 16px 20px;
  border-bottom: 1px solid #e6e6e6;
  background: white;
}

h1 { 
    text-align: center; 
    color: #2c3e50; 
    margin-top: 0;
}
h2 { margin: 0; font-size: 16px; }

main {
  padding: 16px 20px;
  display: grid;
  gap: 16px;
}

.grid2{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 1000px){
  .grid2{ grid-template-columns: 1fr; }
}

.card {
  background: white;
  border: 1px solid #e8e8e8;
  border-radius: 10px;
  padding: 14px;
}

.cardHeader {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 14px;
}

.btn {
  padding: 7px 10px;
  border-radius: 8px;
  border: 1px solid #ddd;
  background: #fff;
  cursor: pointer;
}

.btn:hover { background: #f4f4f4; }

svg { width: 100%; height: auto; }

.axis path, .axis line { stroke: #bbb; }
.axis text { font-size: 12px; }

.hint {
  font-size: 12px;
  color: #666;
  margin: 8px 0 0 0;
}

/* Boxplot */
.box { stroke: #333; }
.median { stroke: #111; stroke-width: 2px; }
.whisker, .cap { stroke: #333; }
.outlier { fill: #555; opacity: 0.6; }

/* Violin */
.violin { fill: #d9d9d9; stroke: #333; }
.iqr { stroke: #333; stroke-width: 6px; opacity: 0.8; }

/* Bars */
.bar { fill: #d9d9d9; stroke: #333; }