.unit-tile-shell {
  position: relative;
  min-width: 0;
}

.unit-tile-shell .unit-tile {
  height: 100%;
}

.unit-tile-shell.has-modifications .unit-tile {
  padding-right: 38px;
}

.unit-modifications-launch {
  position: absolute;
  top: 6px;
  right: 6px;
  z-index: 5;
  width: 30px;
  height: 52px;
  display: grid;
  place-content: center;
  gap: 1px;
  border: 1px solid var(--gold-5);
  border-radius: 2px;
  background: var(--gray-5);
  color: var(--gold-14);
  padding: 2px;
  box-shadow: inset 0 0 0 1px var(--green-6-a12);
}

.unit-modifications-launch:hover,
.unit-modifications-launch:focus-visible {
  border-color: var(--gold-11);
  background: var(--gray-6);
}

.unit-modifications-launch span {
  font-size: var(--fs-lg);
  line-height: 1;
}

.unit-modifications-launch b {
  font-size: var(--fs-3xs);
  line-height: 1;
}

.modification-dialog {
  width: min(1500px, calc(100vw - 24px));
  height: min(900px, calc(100vh - 24px));
  max-width: none;
  max-height: none;
  margin: auto;
  border: 1px solid var(--gray-8);
  border-radius: 2px;
  background: var(--gray-2);
  color: var(--gray-12);
  padding: 0;
  box-shadow: 0 22px 70px var(--black-a60);
  overflow: hidden;
}

.modification-dialog[open] {
  display: flex;
  flex-direction: column;
}

.modification-dialog::backdrop {
  background: var(--black-a60);
}

.modification-titlebar {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--gray-7);
  background: var(--gray-3);
  padding: 7px 12px 7px 18px;
}

.modification-vehicle {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 12px;
}

.modification-vehicle img {
  width: 82px;
  height: 54px;
  object-fit: contain;
}

.modification-vehicle span {
  display: block;
  color: var(--gray-10);
  font-size: var(--fs-3xs);
  font-weight: 800;
}

.modification-vehicle h2 {
  margin: 2px 0 0;
  color: var(--gray-13);
  font-size: var(--fs-3xl);
  font-weight: 500;
  letter-spacing: 0;
}

.modification-close {
  width: 38px;
  height: 38px;
  border: 1px solid transparent;
  border-radius: 1px;
  background: transparent;
  color: var(--gray-12);
  padding: 0;
  font-size: var(--fs-4xl);
  line-height: 1;
}

.modification-close:hover,
.modification-close:focus-visible {
  border-color: var(--gray-9);
  background: var(--gray-6);
}

.modification-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--gray-6);
  background: var(--gray-2);
  padding: 8px 18px;
}

.modification-toolbar p {
  margin: 0;
  color: var(--gray-10);
  font-size: var(--fs-2xs);
  white-space: nowrap;
}

.modification-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
  font-size: var(--fs-2xs);
  font-weight: 700;
}

.modification-legend span {
  display: flex;
  align-items: center;
  gap: 5px;
}

.modification-legend i {
  width: 10px;
  height: 10px;
  border: 2px solid var(--gray-10);
}

.modification-legend i.target { border-color: var(--gold-11); }
.modification-legend i.dependency { border-color: var(--blue-3); }
.modification-legend i.filler { border-color: var(--purple-5); }
.modification-legend i.priority { border-color: var(--red-4); }
.modification-legend [hidden] { display: none; }
.modification-options {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 16px;
  max-width: 100%;
}
.modification-air-combat {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  max-width: 100%;
  color: var(--gold-12);
  font-size: var(--fs-xs);
  cursor: pointer;
}
.modification-air-combat[hidden] { display: none; }
.modification-air-combat input[type="checkbox"] {
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  min-height: 18px;
  padding: 0;
  margin: 0;
  box-shadow: none;
  outline: none;
  accent-color: var(--red-4);
}
.modification-air-combat input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--red-4);
  outline-offset: 3px;
}
.modification-air-combat span { overflow-wrap: anywhere; }
.modification-legend i.researched { border-color: var(--green-5); background: var(--green-1); }

.modification-viewport {
  min-height: 0;
  flex: 1;
  overflow: auto;
  /* Size container: the board's cells are sized from the space this viewport has. */
  container-type: size;
  background: var(--gray-2);
  scrollbar-color: var(--gray-9) var(--gray-3);
  scrollbar-width: thin;
}

.modification-tree {
  min-width: max-content;
  padding: 12px 18px 18px;
}

.modification-board {
  position: relative;
  /* Cells grow to use the dialog, within limits, rather than leaving it half empty.
     The script sets --modification-columns; 36px and 30px are the tree's own padding,
     and 4px of slack keeps rounding from adding a scrollbar. */
  --modification-column-width: clamp(178px, calc((100cqw - 54px - 36px - var(--modification-columns) * 8px) / var(--modification-columns)), 236px);
  --modification-row-height: clamp(82px, calc((100cqh - 34px - 30px - 32px - 4px) / 4), 128px);
  --modification-icon-size: clamp(52px, calc(var(--modification-row-height) * 0.56), 68px);
  display: grid;
  grid-template-columns: 54px repeat(var(--modification-columns), var(--modification-column-width));
  grid-template-rows: 34px repeat(4, var(--modification-row-height));
  gap: 8px;
  width: max-content;
}

.modification-links {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: visible;
  pointer-events: none;
}

.modification-link {
  fill: none;
  stroke: var(--gray-8);
  stroke-width: 3;
  opacity: 0.72;
}

.modification-link.active {
  stroke: var(--blue-4);
  opacity: 1;
}

#mod-arrow path {
  fill: var(--gray-10);
}

.modification-tier-title,
.modification-category {
  z-index: 2;
  display: grid;
  place-items: center;
  margin: 0;
  border: 1px solid var(--gray-7);
  background: var(--gray-6);
  color: var(--gray-12);
  font-size: var(--fs-sm);
  font-weight: 500;
}

.modification-tier-title {
  grid-column: 1;
  grid-row: 1;
  font-size: var(--fs-2xs);
}

.modification-tier {
  z-index: 2;
  display: grid;
  place-content: center;
  gap: 4px;
  border: 1px solid var(--gray-7);
  background: var(--gray-3);
  text-align: center;
}

.modification-tier b {
  color: var(--gray-12);
  font-size: var(--fs-lg);
}

.modification-tier small {
  min-width: 28px;
  border: 1px solid var(--gray-9);
  background: var(--gray-2);
  color: var(--gray-11);
  padding: 2px 4px;
  font-size: var(--fs-3xs);
}

.modification-tier small.met {
  border-color: var(--green-5);
  color: var(--green-7);
}

.modification-grid-cell {
  z-index: 0;
  border: 1px solid var(--gray-7-a32);
  background: transparent;
}

.modification-tile {
  position: relative;
  z-index: 2;
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-columns: var(--modification-icon-size) minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  /* Inline-size container, so the text can step up once a cell is wide enough. */
  container-type: inline-size;
  border: 1px solid var(--gray-8);
  border-radius: 2px;
  background: var(--gray-5);
  color: var(--gray-13);
  padding: 7px 8px;
  text-align: left;
  box-shadow: inset 0 1px var(--green-4-a08);
}

.modification-tile:hover,
.modification-tile:focus-visible {
  border-color: var(--gray-12);
  background: var(--gray-6);
}

.modification-tile img {
  width: var(--modification-icon-size);
  height: var(--modification-icon-size);
  object-fit: contain;
}

.modification-tile-copy {
  min-width: 0;
  display: grid;
  gap: 6px;
}

.modification-ammunition {
  position: relative;
  display: block;
  width: var(--modification-icon-size);
  height: var(--modification-icon-size);
}

.modification-ammunition-decor,
.modification-ammunition-base {
  position: absolute;
  inset: 0;
}

.modification-ammunition-decor img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.modification-ammunition-base {
  display: block;
}

.modification-ammunition-base img {
  position: absolute;
  top: 0;
  min-width: 0;
  max-width: 100%;
  width: auto;
  height: 100%;
}

.modification-tile-copy b {
  overflow-wrap: anywhere;
  font-size: var(--fs-sm);
  font-weight: 500;
  line-height: 1.15;
}

.modification-tile-copy small {
  color: var(--gray-11);
  font-size: var(--fs-3xs);
  white-space: nowrap;
}

@container (min-width: 180px) {
  .modification-tile-copy b { font-size: var(--fs-md); }
  .modification-tile-copy small { font-size: var(--fs-xs); }
}

.modification-state {
  position: absolute;
  top: 3px;
  right: 4px;
  border: 1px solid currentColor;
  background: var(--gray-2);
  padding: 1px 3px;
  font-size: var(--fs-3xs);
  font-weight: 800;
}

.modification-tile.target { border-color: var(--gold-11); box-shadow: inset 0 -3px var(--gold-8); }
.modification-tile.target .modification-state { color: var(--gold-11); }
.modification-tile.dependency { border-color: var(--blue-3); box-shadow: inset 0 -3px var(--blue-2); }
.modification-tile.dependency .modification-state { color: var(--blue-3); }
.modification-tile.filler { border-color: var(--purple-5); box-shadow: inset 0 -3px var(--purple-4); }
.modification-tile.filler .modification-state { color: var(--purple-6); }
.modification-tile.priority { border-color: var(--red-4); box-shadow: inset 0 -3px var(--red-3); }
.modification-tile.priority .modification-state { color: var(--red-5); }
.modification-tile.researched,
.modification-tile.unlocked { border-color: var(--green-5); background: color-mix(in srgb, var(--green-1) 45%, var(--gray-5)); box-shadow: inset 0 -3px var(--green-3); }
.modification-tile.researched .modification-state { color: var(--green-7); }

.modification-tile.unlocked:disabled {
  opacity: 1;
  cursor: default;
}

.modification-tile.unlocked .modification-tile-copy small {
  color: var(--green-7);
  font-size: var(--fs-2xs);
}

.modification-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--gray-7);
  background: var(--gray-5);
  padding: 10px 14px;
}

.modification-budget {
  min-width: 0;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 7px 14px;
}

.modification-budget > span {
  color: var(--gray-10);
  font-size: var(--fs-3xs);
  font-weight: 800;
}

.modification-budget strong {
  color: var(--gray-13);
  font-size: var(--fs-md);
  font-weight: 600;
}

.modification-budget b {
  color: var(--gold-11);
  font-variant-numeric: tabular-nums;
}

.modification-budget small {
  flex-basis: 100%;
  color: var(--gray-11);
  font-size: var(--fs-3xs);
}

.modification-actions {
  display: flex;
  gap: 7px;
}

.modification-actions button {
  min-height: 36px;
  border: 1px solid var(--gray-9);
  border-radius: 1px;
  background: var(--gray-3);
  color: var(--gray-12);
  padding: 7px 11px;
  font-size: var(--fs-2xs);
  font-weight: 700;
  white-space: nowrap;
}

.modification-actions button:hover,
.modification-actions button:focus-visible {
  border-color: var(--gray-11);
  background: var(--gray-6);
}

.modification-actions .calculate {
  border-color: var(--gold-6);
  background: var(--gold-4);
  color: var(--gold-16);
}

.modification-actions .calculate:hover,
.modification-actions .calculate:focus-visible {
  border-color: var(--gold-10);
  background: var(--gold-4);
}

@media (max-width: 720px), (max-height: 540px) and (pointer: coarse) {
  .modification-dialog {
    position: fixed;
    inset: calc(4px + env(safe-area-inset-top, 0px)) calc(4px + env(safe-area-inset-right, 0px)) auto calc(4px + env(safe-area-inset-left, 0px));
    width: auto;
    height: calc(100vh - 8px);
    height: calc(100dvh - 8px - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px));
    margin: 0;
    overflow: clip;
  }

  .modification-titlebar,
  .modification-toolbar,
  .modification-footer { flex: 0 0 auto; }
  .modification-titlebar { min-height: 60px; gap: 8px; padding: 7px 8px; }
  .modification-vehicle { flex: 1; gap: 8px; }
  .modification-vehicle > div { min-width: 0; }
  .modification-vehicle img { flex: 0 0 58px; width: 58px; height: 42px; }
  .modification-vehicle h2 { font-size: var(--fs-xl); line-height: 1.3; overflow-wrap: anywhere; }
  .modification-close { flex: 0 0 44px; width: 44px; height: 44px; }
  .modification-toolbar { align-items: flex-start; flex-direction: column; gap: 6px; padding: 7px 10px; }
  .modification-toolbar p { white-space: normal; }
  .modification-viewport { min-width: 0; overscroll-behavior: contain; }
  .modification-tree { padding: 8px 10px 14px; }
  .modification-footer { align-items: stretch; flex-direction: column; gap: 8px; padding: 8px; }
  .modification-actions { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .modification-actions button { min-width: 0; padding: 6px 4px; white-space: normal; }
}