* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(circle at 20% 20%, #1b2340, #0b0f1e 55%, #03050f);
  color: #e9eeff;
}

#galaxy {
  width: 100%;
  height: 100%;
  display: block;
}

#ui {
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 10;
  min-width: 320px;
  padding: 14px;
  border-radius: 12px;
  background: rgba(12, 18, 42, 0.72);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(130, 158, 255, 0.25);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

#ui h1 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.row {
  display: grid;
  grid-template-columns: 100px 1fr 56px;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}

.row label,
.hint {
  font-size: 0.85rem;
  opacity: 0.9;
}

.row span {
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-size: 0.85rem;
}

.actions {
  margin-top: 10px;
  display: flex;
  gap: 8px;
}

button {
  border: 0;
  color: #eaf1ff;
  padding: 8px 12px;
  border-radius: 10px;
  cursor: pointer;
  background: linear-gradient(180deg, #5073ff, #3558d8);
  box-shadow: 0 6px 18px rgba(53, 88, 216, 0.35);
}

button:hover {
  filter: brightness(1.07);
}

.hint {
  margin: 10px 0 0;
  opacity: 0.7;
}