.sv-shell {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 2;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #080d1c;
}
.sv-shell canvas {
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
}
.sv-levelup {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: rgba(6, 10, 24, 0.86);
  text-align: center;
  padding: 1rem;
}
.sv-levelup h3 {
  margin: 0;
  color: #ffd166;
  font-size: 1.4rem;
}
.sv-levelup p {
  margin: 0;
  color: var(--text-muted);
}
.sv-levelup__row {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 0.5rem;
}
.sv-upg {
  min-width: 130px;
  max-width: 200px;
  padding: 0.9rem 1rem;
  border-radius: 14px;
  border: 1px solid rgba(79, 223, 255, 0.35);
  background: linear-gradient(160deg, rgba(79, 223, 255, 0.14), rgba(255, 255, 255, 0.04));
  color: #eafaff;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.1s ease, border-color 0.15s ease;
}
.sv-upg:hover {
  transform: translateY(-3px);
  border-color: rgba(79, 223, 255, 0.8);
}