.builders-status {
  position: fixed;
  right: 30px;
  top: 110px;
  font-size: 11px;
  padding: 8px 13px;
}
.placement-hint {
  position: fixed;
  bottom: 155px;
  left: 50%;
  transform: translateX(-50%);
  background: #203b2ff0;
  border: 1px solid #e4cf81;
  border-radius: 10px;
  padding: 10px 18px;
  font-size: 12px;
  pointer-events: none;
  white-space: nowrap;
}
.wall-row-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}
.wall-row-actions button {
  font-size: 10px !important;
  padding: 8px !important;
}
#inspector .wall-row-actions button {
  width: auto;
  flex: 1 1 45px;
}
.sandbox-option {
  display: flex;
  gap: 9px;
  align-items: center;
  font-size: 12px;
  line-height: 1.5;
  margin: 15px 0;
}
.sandbox-option input {
  accent-color: #d6c178;
  width: 18px;
  height: 18px;
}
.upgrade-error {
  color: #f6b098 !important;
  font-size: 11px !important;
  line-height: 1.5 !important;
}
#inspector label {
  display: grid;
  gap: 5px;
  margin: 10px 0;
  font-size: 11px;
}
#inspector {
  max-height: calc(calc(100 * var(--game-vh)) - 390px);
  overflow-y: auto;
}
#wallTierGrid .catalog-art {
  height: 80px;
}
#wallTierGrid .catalog-art .asset-icon {
  height: 80px;
  width: 95px;
}
#wallTierGrid .active {
  border: 2px solid #e6cd7c;
}
#upgradeDialog {
  width: 440px;
  max-width: calc(92 * var(--game-vw));
}
.upgrade-art-pair {
  display: flex;
  justify-content: center;
  gap: 20px;
  align-items: center;
}
.upgrade-art-pair .asset-icon {
  width: 115px;
  height: 100px;
  object-fit: contain;
}
.upgrade-art-pair span {
  font-size: 25px;
}
#upgradeDialog .primary {
  font-size: 13px;
  margin-top: 10px;
}
#upgradeDialog label:not(.sandbox-option) {
  font-size: 12px;
  display: flex;
  gap: 10px;
  align-items: center;
}
.upgrade-stats {
  margin: 18px 0;
  padding: 14px;
  background: #263e2a;
  border-radius: 10px;
}
.upgrade-stat-label, .upgrade-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 12px;
}
.upgrade-stat-label em {
  color: #a7ed62;
  font-style: normal;
}
.upgrade-stat-track {
  height: 12px;
  border: 2px solid #142719;
  background: #9ada4d;
  border-radius: 5px;
  overflow: hidden;
  margin: 8px 0 15px;
}
.upgrade-stat-track span {
  display: block;
  height: 100%;
  background: #579e2c;
}
.upgrade-summary span {
  display: flex;
  gap: 6px;
  align-items: center;
}
.upgrade-summary .asset-icon {
  width: 23px;
  height: 23px;
  object-fit: contain;
}
#upgradeProgress {
  display: block;
  width: 100%;
  height: 16px;
  margin: 10px 0;
  accent-color: #91d449;
}
@media (max-width: 800px) {
  .builders-status {
    right: 12px;
    top: 112px;
    font-size: 9px;
  }
  .placement-hint {
    bottom: 205px;
    font-size: 10px;
    max-width: calc(95 * var(--game-vw));
    white-space: normal;
  }
  #inspector {
    max-height: calc(calc(100 * var(--game-vh)) - 410px);
  }
  .upgrade-art-pair .asset-icon {
    width: 90px;
    height: 85px;
  }
}

/* Original upgrade dialog composition: a model stage beside a statistics panel. */
#upgradeDialog {
  width: min(1060px, calc(94 * var(--game-vw)));
  max-width: calc(94 * var(--game-vw));
  max-height: calc(93 * var(--game-vh));
  padding: 10px;
  background: #625956;
  color: #fff;
  border: 3px solid #262322;
  border-radius: 16px;
  box-shadow: inset 0 0 0 3px #8a807a, 0 8px 32px #0008;
  font-family: Arial, sans-serif;
}
#upgradeDialog .dialog-heading {
  padding: 0 4px 12px;
  margin: 0;
  align-items: center;
  background: #746a64;
  border-radius: 7px 7px 0 0;
  position: static;
}
#upgradeDialog h2 {
  flex: 1;
  text-align: center;
  margin: 5px;
  font: 900 clamp(18px, calc(2.4 * var(--game-vw)), 29px) Arial, sans-serif;
  text-shadow: 0 2px 1px #161311;
}
#upgradeDialog h2 strong {
  color: #ffe167;
}
#upgradeDialog #closeUpgrade {
  background: linear-gradient(#fb7777, #d92d32);
  border: 2px solid #5b191b;
  box-shadow: inset 0 0 0 2px #ffb2ac;
  color: white;
  font: 900 27px Arial, sans-serif;
  width: 45px;
  height: 45px;
  padding: 0;
}
.upgrade-layout {
  display: grid;
  grid-template-columns: 45% 1fr;
  gap: 10px;
}
.upgrade-model-stage {
  min-height: 405px;
  border: 5px solid #c7c7c7;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: radial-gradient(ellipse at 45% 42%, #b3c96b, #91ad4b 72%);
  position: relative;
  overflow: hidden;
}
.upgrade-model-stage::before {
  content: "";
  width: 170px;
  height: 128px;
  background: url("assets/terrain-grass.png") center / contain no-repeat;
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
  position: absolute;
  top: 49%;
}
.upgrade-model-stage .asset-icon {
  width: min(70%, 260px);
  height: 260px;
  object-fit: contain;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 8px 4px #253e2377);
}
.upgrade-details {
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.upgrade-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  background: #dedede;
  color: #25221f;
  border: 5px solid #b3b3b3;
  border-radius: 12px;
  padding: 10px;
  min-height: 300px;
  align-content: start;
  flex: 1;
}
.upgrade-stat-card {
  background: linear-gradient(#d8d8d8, #b9b9b9);
  border: 2px solid #a1a1a1;
  border-radius: 8px;
  padding: 8px;
  font-weight: 800;
}
.upgrade-stat-card.improved {
  background: linear-gradient(#aada42, #7ab31d);
  border-color: #f3f3e9;
  box-shadow: inset 0 0 0 2px #b2d855;
}
.upgrade-stat-card small {
  display: block;
  margin-bottom: 5px;
  font-size: 13px;
}
#upgradeDialog .upgrade-stat-card small {
  color: #25291c;
  letter-spacing: 0;
  font-weight: 800;
  text-transform: none;
  opacity: 1;
}
.upgrade-stat-card strong {
  font-size: 21px;
  color: white;
  text-shadow: 0 2px #1b2414, 1px 0 #1b2414, -1px 0 #1b2414;
}
.upgrade-stat-card em {
  color: #d5fb8f;
  font-style: normal;
}
.upgrade-stat-card .upgrade-stat-track {
  height: 7px;
  margin: 7px 0 0;
}
#upgradeDialog .upgrade-payment-row {
  margin: 0 4px;
  color: #f5eee4;
}
.upgrade-bottom {
  display: flex;
  justify-content: flex-end;
  align-items: stretch;
  gap: 9px;
}
#upgradeDialog #confirmUpgrade {
  background: linear-gradient(#c5eb7c, #81b936);
  border: 2px solid #344a1d;
  box-shadow: inset 0 0 0 2px #d5eeaa;
  color: white;
  border-radius: 12px;
  min-width: 180px;
  font: 900 19px Arial, sans-serif;
  text-shadow: 0 2px #30461c;
  padding: 9px 15px;
  margin: 0;
  display: block;
}
#upgradeDialog #confirmUpgrade::after {
  content: attr(data-price);
  display: block;
  margin-top: 7px;
  font-size: 20px;
}
#upgradeDialog #confirmUpgrade:disabled {
  filter: grayscale(0.65);
}
.upgrade-time {
  border-radius: 8px;
  background: #3e3937;
  text-align: center;
  padding: 10px 13px;
  min-width: 90px;
}
.upgrade-time small {
  display: block;
  margin-bottom: 8px;
}
.upgrade-time strong {
  font-size: 22px;
  text-shadow: 0 2px #1f1b18;
}
#upgradeDialog #upgradeProblems {
  margin: 0 5px;
  min-height: 0;
}
.wall-placement-actions {
  position: fixed;
  z-index: 8;
  bottom: 185px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 10px;
  background: #263e2ae8;
  border: 1px solid #b6c98c;
  border-radius: 12px;
  padding: 9px;
}
.wall-nudge-controls {
  display: grid;
  grid-template-columns: repeat(2, 32px);
  gap: 3px;
}
.wall-nudge-controls button {
  padding: 2px;
  color: #d3f493;
  background: #527a36;
  font-size: 20px;
}
#cancelWallPlacement, #confirmWallPlacement {
  width: 53px;
  height: 53px;
  padding: 0;
  font: 900 30px Arial, sans-serif;
  color: white;
  text-shadow: 0 2px #26351e;
  border-radius: 10px;
  border: 2px solid #26351e;
}
#cancelWallPlacement { background: linear-gradient(#ff8282, #d52e35); }
#confirmWallPlacement { background: linear-gradient(#c5ed72, #77ad29); }
.wall-placement-actions[hidden], #upgradeDialog [hidden] { display: none !important; }
@media (max-width: 680px) {
  .upgrade-layout { grid-template-columns: 1fr; }
  .upgrade-model-stage { min-height: 170px; }
  .upgrade-model-stage .asset-icon { height: 150px; width: 180px; }
  .upgrade-model-stage::before { top: 35%; width: 120px; height: 90px; }
  .upgrade-stat-grid { min-height: 0; }
  .upgrade-stat-card strong { font-size: 17px; }
  .upgrade-stat-card small { font-size: 11px; }
  #upgradeDialog #confirmUpgrade { min-width: 150px; font-size: 16px; }
  .wall-placement-actions { bottom: 230px; }
}