:root {
  color-scheme: dark;
}
body {
  margin: 0;
  font:
    13px/1.4 system-ui,
    sans-serif;
  background: #111;
  color: #ddd;
  display: flex;
}
#view {
  flex: 1;
}
canvas {
  display: block;
  width: 100%;
  height: 100vh;
  background: #0b0d12;
  cursor: grab;
}
#panel {
  width: 280px;
  padding: 12px;
  background: #171a20;
  overflow-y: auto;
  height: 100vh;
  box-sizing: border-box;
}
h1 {
  font-size: 15px;
  margin: 0 0 8px;
}
h2 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #7fb;
  margin: 16px 0 6px;
}
label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 4px 0;
  gap: 6px;
}
input[type='range'] {
  flex: 1;
}
.val {
  width: 42px;
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: #9cf;
}
button {
  background: #24303f;
  color: #cfe;
  border: 1px solid #395;
  padding: 6px 10px;
  border-radius: 4px;
  cursor: pointer;
  margin: 2px 0;
}
button:hover {
  background: #2d3d50;
}
select,
input[type='number'] {
  background: #0b0d12;
  color: #cfe;
  border: 1px solid #345;
  border-radius: 4px;
  padding: 3px;
}
#metrics {
  font-variant-numeric: tabular-nums;
}
#metrics div {
  display: flex;
  justify-content: space-between;
  padding: 1px 0;
}
#metrics b {
  color: #9cf;
  font-weight: 500;
}
.row {
  display: flex;
  gap: 6px;
}
.row button {
  flex: 1;
}
small {
  color: #789;
}