.upgrade-actions {
  display: flex;
  gap: 6px;
}
.upgrade-actions #prestigeBtn {
  background: #253235;
  color: #fff;
}
.upgrade-actions #prestigeBtn i {
  color: #f2c75b;
}
.prestige-dialog p {
  font-size: 12px;
  line-height: 1.55;
  color: var(--muted);
}
.prestige-perks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 18px 0;
  border: 1px solid rgba(37, 50, 53, 0.11);
  border-radius: 14px;
  overflow: hidden;
}
.prestige-perks span {
  padding: 13px 8px;
  text-align: center;
  border-left: 1px solid rgba(37, 50, 53, 0.11);
}
.prestige-perks span:first-child {
  border: 0;
}
.prestige-perks small,
.prestige-perks b {
  display: block;
}
.prestige-perks small {
  font-size: 7px;
  color: var(--muted);
  letter-spacing: 0.1em;
}
.prestige-perks b {
  font-size: 18px;
  margin-top: 4px;
  color: var(--teal);
}
.prestige-requirements {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
  background: #f0ece1;
  border-radius: 12px;
  padding: 12px;
  margin-bottom: 13px;
}
.prestige-requirements b {
  grid-column: 1/3;
  font-size: 8px;
  letter-spacing: 0.13em;
}
.prestige-requirements span {
  font-size: 10px;
}
.prestige-requirements span.met {
  color: #278472;
  font-weight: 800;
}
.prestige-dialog .primary {
  width: 100%;
}
.prestige-dialog .primary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.prestige-warning {
  text-align: center;
  font-size: 9px !important;
}
.building-stack {
  position: absolute;
  left: 13px;
  top: 82px;
  z-index: 6;
  width: 56px;
  padding: 5px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  border: 1px solid rgba(37, 50, 53, 0.18);
  border-radius: 10px;
  background: rgba(250, 248, 241, 0.82);
  box-shadow: 0 8px 22px rgba(37, 50, 53, 0.11);
  backdrop-filter: blur(7px);
  pointer-events: none;
}
.building-stack:before {
  content: "OFFICE";
  padding: 3px 0 4px;
  text-align: center;
  font-size: 6px;
  font-weight: 900;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.building-stack span {
  height: 25px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(37, 50, 53, 0.14);
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.72);
  color: #707977;
  font-size: 8px;
  font-weight: 900;
  transition: 0.2s ease;
}
.building-stack span.active {
  border-color: #d5a936;
  background: #e2b852;
  color: #253235;
  box-shadow: 0 0 0 2px rgba(226, 184, 82, 0.19);
  transform: translateX(5px);
}
@media (max-width: 900px) {
  .building-stack {
    left: 6px;
    top: 68px;
    transform: scale(0.82);
    transform-origin: top left;
  }
  .upgrade-actions {
    gap: 3px;
  }
  .upgrade-head button {
    padding: 6px;
    font-size: 8px;
  }
  .prestige-perks {
    grid-template-columns: 1fr;
  }
  .prestige-perks span {
    border-left: 0;
    border-top: 1px solid rgba(37, 50, 53, 0.11);
  }
}