* {
  box-sizing: border-box;
}

/* Elements with display rules of their own still hide with `hidden`. */
[hidden] {
  display: none !important;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
}

body {
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  background: #101414;
  color: #eef3ef;
}

.shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  width: 100%;
  height: 100vh;
}

.shell.panel-hidden {
  grid-template-columns: minmax(0, 1fr);
}

.stage {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  min-width: 0;
  min-height: 0;
}

.tabbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 8px;
  border-bottom: 1px solid rgb(255 255 255 / 14%);
  background: #1b2020;
}

.tabs {
  display: flex;
  gap: 4px;
}

.tabbar button {
  width: auto;
  min-height: 32px;
  padding: 4px 14px;
}

.tab {
  background: transparent;
  color: #cdd8d1;
  border-color: transparent;
}

.tab[aria-selected="true"] {
  background: #d7f078;
  color: #151817;
}

.tab:focus-visible,
.restore:focus-visible,
.paint-surface:focus-visible {
  outline: 2px solid #d7f078;
  outline-offset: 2px;
}

.restore {
  background: #2c3434;
  color: #eef3ef;
}

.viewer {
  position: relative;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

canvas {
  display: block;
}

#vista {
  width: 100%;
  height: 100%;
  background: #85adc8;
  cursor: grab;
}

#vista:active {
  cursor: grabbing;
}

#minimap {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 180px;
  height: 180px;
  border: 2px solid rgb(255 255 255 / 45%);
  border-radius: 8px;
  image-rendering: pixelated;
  background: #08251b;
  box-shadow: 0 6px 18px rgb(0 0 0 / 35%);
}

.status {
  position: absolute;
  left: 16px;
  bottom: 16px;
  max-width: min(520px, calc(50% - 24px));
  padding: 8px 10px;
  border: 1px solid rgb(255 255 255 / 18%);
  border-radius: 6px;
  background: rgb(8 14 14 / 76%);
  font-size: 14px;
}

.stats {
  position: absolute;
  left: 16px;
  top: 16px;
  padding: 8px 10px;
  border: 1px solid rgb(255 255 255 / 18%);
  border-radius: 6px;
  background: rgb(8 14 14 / 76%);
  font-size: 12px;
  line-height: 1.5;
  white-space: pre;
}

.hint {
  position: absolute;
  right: 16px;
  bottom: 16px;
  max-width: calc(50% - 24px);
  padding: 6px 12px;
  border: 1px solid rgb(255 255 255 / 14%);
  border-radius: 999px;
  background: rgb(8 14 14 / 60%);
  font-size: 12px;
  color: rgb(238 243 239 / 80%);
  pointer-events: none;
  text-align: right;
}

/* The loading overlay covers the view while the engine starts and while */
/* terrain generates. Opacity and transforms animate on the compositor, so */
/* the bar's shimmer keeps moving while WASM holds the main thread. */
.loading {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: grid;
  place-items: center;
  padding: 16px;
  background: rgb(6 12 12 / 45%);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 200ms ease, visibility 0s linear 200ms;
}

/* A short delay, so a quick rebuild never flashes the overlay. */
.loading.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: opacity 200ms ease 120ms, visibility 0s;
}

.loading.is-first {
  background: radial-gradient(ellipse at 50% 35%, #29464d 0%, #101414 72%);
  transition: none;
}

.loading-card {
  width: min(420px, 100%);
  padding: 20px 22px;
  border: 1px solid rgb(255 255 255 / 16%);
  border-radius: 12px;
  background: rgb(12 18 18 / 88%);
  box-shadow: 0 18px 48px rgb(0 0 0 / 45%);
}

.loading-brand {
  margin: 0 0 4px;
  color: #d7f078;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.loading-title {
  margin: 0 0 14px;
  font-size: 18px;
  font-weight: 600;
}

.loading-track {
  position: relative;
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: rgb(255 255 255 / 12%);
}

.loading-track::after {
  content: "";
  position: absolute;
  inset: 0;
  width: 35%;
  background: linear-gradient(90deg, transparent, rgb(255 255 255 / 35%), transparent);
  transform: translateX(-100%);
  animation: loading-shimmer 1.4s ease-in-out infinite;
  pointer-events: none;
}

@keyframes loading-shimmer {
  to {
    transform: translateX(300%);
  }
}

.loading-bar {
  appearance: none;
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  background: transparent;
}

.loading-bar::-webkit-progress-bar {
  background: transparent;
}

.loading-bar::-webkit-progress-value {
  border-radius: 999px;
  background: linear-gradient(90deg, #8fd694, #d7f078);
  transition: width 160ms ease;
}

.loading-bar::-moz-progress-bar {
  border-radius: 999px;
  background: linear-gradient(90deg, #8fd694, #d7f078);
}

.loading-bar:indeterminate::-moz-progress-bar {
  background: transparent;
}

.loading-detail {
  min-height: 1.4em;
  margin: 10px 0 0;
  color: rgb(238 243 239 / 80%);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

.loading-dismiss {
  width: auto;
  margin-top: 14px;
  padding: 4px 18px;
}

.loading.is-error .loading-track {
  display: none;
}

.loading.is-error .loading-title {
  color: #ffb4a8;
}

@media (prefers-reduced-motion: reduce) {
  .loading,
  .loading.is-visible {
    transition: none;
  }

  .loading-track::after {
    display: none;
  }
}

.controls {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 16px;
  overflow-y: auto;
  border-left: 1px solid rgb(255 255 255 / 14%);
  background: #1b2020;
}

.section {
  border: 1px solid rgb(255 255 255 / 14%);
  border-radius: 8px;
  background: rgb(255 255 255 / 2%);
}

.section > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #9fe08a;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.section > summary::-webkit-details-marker {
  display: none;
}

.section > summary::after {
  content: "+";
  font-size: 16px;
  line-height: 1;
  color: rgb(238 243 239 / 60%);
}

.section[open] > summary::after {
  content: "\2212";
}

.section > summary:focus-visible {
  outline: 2px solid #d7f078;
  outline-offset: -2px;
  border-radius: 8px;
}

.subsection {
  border-top: 1px solid rgb(255 255 255 / 10%);
  padding-top: 8px;
}

.subsection > summary {
  font-size: 12px;
  font-weight: 600;
  color: rgb(238 243 239 / 80%);
  cursor: pointer;
}

.subsection-body {
  display: grid;
  gap: 10px;
  padding-top: 10px;
}

fieldset {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0 12px 12px;
  border: 0;
  min-width: 0;
}

label {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px;
  font-size: 13px;
  color: #cdd8d1;
}

label > input,
label > select {
  grid-column: 1 / -1;
}

label > .value {
  font-variant-numeric: tabular-nums;
  color: #eef3ef;
  opacity: 0.8;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chips .chip {
  width: auto;
  min-height: 28px;
  margin: 0;
  padding: 2px 10px;
  border-radius: 999px;
  background: #2c3434;
  color: #eef3ef;
  font-size: 12px;
  font-weight: 600;
}

.chips .chip[aria-pressed="true"] {
  background: #d7f078;
  color: #151817;
}

label.checkbox {
  display: flex;
  align-items: center;
  flex-direction: row-reverse;
  justify-content: flex-end;
  gap: 8px;
}

label.checkbox input {
  width: auto;
  min-height: 0;
}

input,
select,
button {
  width: 100%;
  min-height: 34px;
  border: 1px solid rgb(255 255 255 / 20%);
  border-radius: 6px;
  background: #f5f1e8;
  color: #151817;
  font: inherit;
}

button {
  cursor: pointer;
  background: #d7f078;
  font-weight: 700;
}

button.secondary {
  background: #2c3434;
  color: #eef3ef;
  font-weight: 600;
}

button.secondary:hover,
button.secondary:focus-visible {
  background: #3a4545;
}

button:disabled {
  cursor: progress;
  opacity: 0.6;
}

input[type="range"] {
  min-height: 0;
  height: 20px;
  padding: 0;
  border: 0;
  background: transparent;
  accent-color: #d7f078;
}

input[type="checkbox"] {
  accent-color: #d7f078;
}

input[type="file"] {
  min-height: 0;
  padding: 6px;
  background: #2c3434;
  color: #eef3ef;
  font-size: 12px;
}

.paint {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  min-width: 0;
  min-height: 0;
}

.paint-surface {
  position: relative;
  overflow: hidden;
  touch-action: none;
  cursor: crosshair;
  background: #0b0f0f;
}

.paint-surface.panning {
  cursor: grab;
}

#paintCanvas {
  position: absolute;
  left: 0;
  top: 0;
  transform-origin: 0 0;
  touch-action: none;
}

#paintCanvas.pixelated {
  image-rendering: pixelated;
}

.brush-cursor {
  position: absolute;
  left: 0;
  top: 0;
  border: 1.5px solid #ffffff;
  border-radius: 50%;
  box-shadow: 0 0 0 1px rgb(0 0 0 / 60%);
  pointer-events: none;
}

.paint-cursor,
.paint-status {
  margin: 0;
  padding: 6px 12px;
  font-size: 13px;
  overflow-wrap: anywhere;
}

.paint-cursor {
  border-top: 1px solid rgb(255 255 255 / 14%);
  font-variant-numeric: tabular-nums;
  color: #cdd8d1;
}

.paint-status {
  background: #1b2020;
}

.paint-options {
  display: grid;
  gap: 10px;
}

.button-row {
  display: flex;
  gap: 6px;
}

.palette {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px;
}

.palette .swatch {
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 30px;
  padding: 2px 6px;
  font-size: 12px;
  text-align: left;
}

.palette .swatch[aria-pressed="true"] {
  outline: 2px solid #d7f078;
  outline-offset: -2px;
}

.palette .swatch span {
  flex: none;
  width: 14px;
  height: 14px;
  border-radius: 3px;
  border: 1px solid rgb(255 255 255 / 30%);
}

.palette .swatch span.erase {
  background: repeating-linear-gradient(45deg, #2c3434 0 3px, #eef3ef 3px 5px);
}

@media (max-width: 760px) {
  .shell {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(360px, 1fr) auto;
  }

  .shell.panel-hidden {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(360px, 1fr);
  }

  .controls {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-top: 1px solid rgb(255 255 255 / 14%);
    border-left: 0;
  }

  .project {
    grid-column: 1 / -1;
  }

  .hint {
    display: none;
  }

  #minimap {
    width: 110px;
    height: 110px;
  }

  .status {
    max-width: calc(100% - 32px);
  }
}

@media (max-width: 480px) {
  .controls {
    grid-template-columns: 1fr;
  }
}

.readout {
  margin: 0;
  font-size: 13px;
  opacity: 0.85;
}

.legend {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  color: #cdd8d1;
}

.legend[hidden] {
  display: none;
}

.legend li {
  display: flex;
  align-items: center;
  gap: 6px;
}

.legend span {
  flex: none;
  width: 12px;
  height: 12px;
  border-radius: 2px;
  border: 1px solid rgb(255 255 255 / 0.25);
}

/* The legend's colours live here rather than in style attributes, so the page needs no inline styles under its Content Security Policy. */
.legend span[data-biome="grassyMeadows"] {
  background: rgb(140 204 77);
}

.legend span[data-biome="outerThicket"] {
  background: rgb(102 158 56);
}

.legend span[data-biome="outerForest"] {
  background: rgb(51 128 46);
}

.legend span[data-biome="innerForest"] {
  background: rgb(20 82 26);
}

.legend span[data-biome="mountainFoothills"] {
  background: rgb(153 140 102);
}

.legend span[data-biome="mountainProper"] {
  background: rgb(140 140 148);
}

.legend span[data-biome="outerVolcanic"] {
  background: rgb(89 51 46);
}

.legend span[data-biome="calderaVolcanic"] {
  background: rgb(230 64 13);
}

.legend span[data-biome="savannahExpanse"] {
  background: rgb(217 184 89);
}

.legend span[data-biome="coastalBeach"] {
  background: rgb(242 224 158);
}

.legend span[data-biome="coastalRocky"] {
  background: rgb(128 115 107);
}

.legend span[data-biome="outerJungle"] {
  background: rgb(38 179 89);
}

.legend span[data-biome="innerJungle"] {
  background: rgb(5 115 51);
}

.legend span[data-biome="swampWetlands"] {
  background: rgb(77 97 64);
}

.legend span[data-biome="ocean"] {
  background: rgb(26 64 140);
}

.legend span[data-biome="alpineTransition"] {
  background: rgb(153 128 158);
}

.legend span[data-biome="lowerSnowyPeaks"] {
  background: rgb(158 199 242);
}

.legend span[data-biome="upperSnowyPeaks"] {
  background: rgb(247 252 255);
}

.legend span[data-biome="iceArctic"] {
  background: rgb(191 235 255);
}

.project {
  display: grid;
  gap: 4px;
  padding: 4px 2px 0;
  font-size: 13px;
}

.project strong {
  font-size: 16px;
}

.project a {
  color: #9fe08a;
}

.project a:hover,
.project a:focus-visible {
  color: #c8f5b8;
}