:root {
  color-scheme: dark;
  --bg: #111315;
  --panel: #1b1f22;
  --panel-2: #22282c;
  --line: #31383d;
  --text: #eef1ed;
  --muted: #a8b1aa;
  --accent: #69b578;
  --accent-2: #e3b341;
  --danger: #d35f54;
}

* {
  box-sizing: border-box;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
select {
  font: inherit;
}

.app {
  display: grid;
  grid-template-columns: minmax(280px, 340px) minmax(0, 1fr) minmax(260px, 340px);
  width: 100%;
  height: 100%;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  padding: 14px;
  overflow: auto;
  border-right: 1px solid var(--line);
  background: #16191b;
}

.history-sidebar {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  padding: 14px;
  overflow: hidden;
  border-left: 1px solid var(--line);
  background: #16191b;
}

.history-panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
}

.history-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.history-header h2 {
  margin: 0;
  font-size: 14px;
}

.history-header span {
  color: var(--muted);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.history-controls,
.history-group-controls {
  display: grid;
  gap: 6px;
  margin-bottom: 8px;
}

.history-controls {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.history-controls select,
.history-group-controls button {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #101315;
  color: var(--text);
  font-size: 11px;
  height: 28px;
}

.history-group-controls {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.history-group-controls button[aria-pressed="false"] {
  color: var(--muted);
  background: #171b1d;
}

#stateGraph {
  display: block;
  width: 100%;
  height: auto;
  border: 0;
  background: #101315;
  image-rendering: auto;
}

.state-graph-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #101315;
}

.state-graph-info {
  min-height: 18px;
  margin-top: 7px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.25;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand h1 {
  margin: 0 0 6px;
  font-size: 24px;
  line-height: 1.05;
  letter-spacing: 0;
}

.brand p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.35;
}

.panel {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  margin-bottom: 12px;
}

button,
select {
  min-height: 34px;
  border: 1px solid #3d464b;
  border-radius: 6px;
  background: var(--panel-2);
  color: var(--text);
}

button {
  cursor: pointer;
}

button:hover,
select:hover {
  border-color: #59656b;
}

button.primary {
  background: #254b30;
  border-color: #3d794b;
}

.controls label {
  display: grid;
  gap: 6px;
  margin-top: 11px;
  color: var(--muted);
  font-size: 12px;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

select {
  width: 100%;
  padding: 0 9px;
}

.stats dl {
  display: grid;
  gap: 7px;
  margin: 0;
}

.stats div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  min-height: 22px;
}

.stats dt {
  color: var(--muted);
  font-size: 12px;
}

.stats dd {
  margin: 0;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}

.ledger {
  min-height: 0;
}

.ledger h2 {
  margin: 0 0 10px;
  font-size: 14px;
  letter-spacing: 0;
}

.ledger ol {
  display: grid;
  gap: 7px;
  max-height: 260px;
  margin: 0;
  padding-left: 22px;
  overflow: auto;
}

.ledger li {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
}

.lineage-chip {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 7px;
  border-radius: 2px;
  vertical-align: -1px;
}

.sim {
  position: relative;
  display: grid;
  place-items: center;
  min-width: 0;
  min-height: 0;
  padding: 16px;
  background: #101214;
}

canvas#world {
  display: block;
  width: min(calc(100vh - 32px), 100%);
  height: min(calc(100vh - 32px), 100%);
  max-width: 100%;
  max-height: 100%;
  aspect-ratio: 1 / 1;
  border: 1px solid #293035;
  background: #0b0d0f;
  image-rendering: pixelated;
}

.legend {
  position: absolute;
  right: 24px;
  bottom: 20px;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
  max-width: min(560px, calc(100% - 48px));
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(20, 23, 25, 0.92);
  color: var(--muted);
  font-size: 11px;
}

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

.legend i {
  width: 12px;
  height: 12px;
  border-radius: 2px;
}

.tooltip {
  position: absolute;
  z-index: 3;
  min-width: 180px;
  max-width: min(300px, calc(100% - 16px));
  max-height: calc(100% - 16px);
  overflow: auto;
  padding: 8px 10px;
  border: 1px solid #435057;
  border-radius: 6px;
  background: rgba(15, 18, 20, 0.96);
  color: var(--text);
  font-size: 11px;
  line-height: 1.35;
  pointer-events: auto;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
}

.tooltip strong {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
}

.tooltip span {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  color: var(--muted);
}

@media (max-width: 1100px) {
  body {
    overflow: auto;
  }

  .app {
    grid-template-columns: 1fr;
    height: auto;
    min-height: 100%;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .history-sidebar {
    border-left: 0;
    border-top: 1px solid var(--line);
    overflow: hidden;
  }

  .sim {
    min-height: 70vh;
    padding: 10px;
  }

  canvas#world {
    width: min(calc(100vw - 20px), 92vh);
    height: min(calc(100vw - 20px), 92vh);
  }

  .state-graph-scroll {
    height: 420px;
    flex: none;
  }
}