html,
body {
  margin: 0;
  min-height: 100%;
  background: #111;
  color: #f6f4ef;
  font-family: "Segoe UI", Arial, sans-serif;
  overflow: hidden;
}

button,
input {
  font: inherit;
}

button {
  border: 1px solid #565f68;
  background: #f3f1ea;
  color: #1f2328;
  min-height: 32px;
  padding: 4px 12px;
  cursor: pointer;
}

button:disabled {
  cursor: default;
  opacity: .45;
}

input {
  width: 120px;
  min-height: 28px;
  border: 1px solid #565f68;
  padding: 0 8px;
}

.game-shell {
  width: 802px;
  height: 824px;
}

.game-frame {
  position: relative;
  width: 802px;
  height: 824px;
  background: #111;
}

canvas {
  width: 802px;
  height: 824px;
  display: block;
  image-rendering: pixelated;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  justify-items: center;
  align-content: center;
  gap: 16px;
  background: rgba(0, 0, 0, .18);
}

.menu h1 {
  margin: 0 0 20px;
  font-size: 32px;
  text-align: center;
  color: #fff;
  text-shadow: 0 2px 4px #000;
}

.menu button {
  width: min(330px, 80%);
}

.toolbar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  min-height: 22px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
  padding: 4px 8px;
  box-sizing: border-box;
  background: #595959;
  color: #fff;
}

.toolbar span {
  margin-right: auto;
}

.toolbar button {
  min-height: 24px;
  padding: 0 8px;
}

.dialog-backdrop {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, .62);
}

.load-dialog {
  width: min(360px, calc(100% - 48px));
  display: grid;
  gap: 12px;
  padding: 24px;
  box-sizing: border-box;
  border: 1px solid #8d8d86;
  background: #eeeeea;
  color: #1f2328;
  box-shadow: 0 8px 28px rgba(0, 0, 0, .45);
}

.load-dialog h2 {
  margin: 0 0 4px;
  text-align: center;
}

.load-dialog input {
  width: 100%;
  box-sizing: border-box;
}

.dialog-error {
  padding: 8px 10px;
  border: 1px solid #a64040;
  background: #f7dddd;
  color: #7b1f1f;
  font-size: 14px;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 4px;
}

.camp-panel {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: 12px;
  background: rgba(38, 38, 38, .92);
}

.panel-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 10px;
}

.panel-head button {
  margin-left: auto;
}

.unit-cards {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 8px;
}

.unit-card {
  min-height: 178px;
  padding: 8px;
  box-sizing: border-box;
  background: #eeeeea;
  color: #1f2328;
  border: 1px solid #9a9a92;
  font-size: 13px;
  line-height: 1.25;
}

.unit-title {
  font-weight: 600;
  margin-bottom: 6px;
}

.unit-card button {
  width: 100%;
  min-height: 26px;
  margin-top: 6px;
  padding: 2px 6px;
  white-space: normal;
}

.upgrade-group {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 4px;
  margin-top: 6px;
}

.upgrade-cost {
  grid-column: 1 / -1;
  font-weight: 600;
}

.upgrade-group button {
  margin-top: 0;
}

@media (max-width: 720px) {
  body {
    overflow: auto;
  }

  .toolbar {
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .unit-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-height: 380px;
    overflow: auto;
  }
}