:root {
  color-scheme: dark;
  --bg: #000000;
  --panel: #000000;
  --panel-2: #050505;
  --border: #4e6800;
  --text: #c0fe04;
  --muted: #5f6b32;
  --accent: #c0fe04;
  --off: #171717;
  --on: #c0fe04;
  --current: #e8ff7a;
  --error: #f24723;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  background: #000;
  color: var(--text);
  font-size: 12px;
  line-height: 1.2;
}

.app-shell {
  max-width: 1360px;
  margin: 0 auto;
  padding: 16px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 0;
  box-shadow: none;
}

.toolbar {
  padding: 14px;
  display: grid;
  gap: 14px;
}

.toolbar-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.controls label,
.logic-controls label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 220px;
  color: var(--text);
  font-size: 12px;
}

.logic-controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

button,
select {
  font: inherit;
  border-radius: 0;
  border: 1px solid var(--border);
  background: #000;
  color: var(--text);
  padding: 10px 12px;
}

button {
  cursor: pointer;
  font-weight: 700;
}

button:hover,
select:hover {
  background: #0b0b0b;
  filter: none;
}

button:disabled,
select:disabled,
input:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

button.secondary {
  background: #000;
  color: var(--text);
  border-color: var(--border);
}

button.log{
  background: #000;
  color: var(--text);
  border-color: var(--border);
  margin-left: auto;
  padding: 3px 6px;
  margin-bottom: 10px;
}

#applyAnimatedBtn,
#applyInstantBtn,
#stepRuleBtn {
  background: #0d1700;
  border-color: var(--accent);
  color: var(--accent);
}

.info-row {
  margin-top: 14px;
  padding: 12px 14px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
}

.main-layout {
  margin-top: 14px;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 14px;
}

.grid-panel {
  padding: 16px;
  overflow: auto;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  background: #020202;
}

.grid {
  --cell-size: 96px;
  display: grid;
  gap: 8px;
  width: fit-content;
}

.cell {
  width: var(--cell-size);
  aspect-ratio: 1 / 1;
  border-radius: 0;
  border: 1px solid #3b3b3b;
  padding: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-weight: 700;
  line-height: 1.1;
  user-select: none;
  cursor: pointer;
  transition: none;
}

.cell:hover {
  transform: none;
  filter: none;
  border-color: var(--accent);
}

.cell.off {
  background: #4f555d;
  color: #f2f2f2;
}

.cell.on {
  background: #1d3300;
  border-color: var(--accent);
  color: var(--accent);
}

.cell.current {
  background: #c0fe04;
  border-color: #c0fe04;
  color: #000;
}

.side-panel {
  display: grid;
  gap: 14px;
}

.panel-block {
  padding: 14px;
}

.panel-block h2 {
  margin: 0 0 10px 0;
  font-size: 12px;
  font-weight: 700;
  text-transform: none;
  color: var(--accent);
}

.panel-text {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  background: #000;
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 12px;
  min-height: 220px;
  color: var(--text);
}

.log-block .panel-text {
  min-height: 320px;
  max-height: 420px;
  overflow: auto;
}

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

strong {
  color: var(--accent);
  font-weight: 700;
}

@media (max-width: 1100px) {
  .main-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .app-shell {
    padding: 10px;
  }

  .grid {
    --cell-size: 74px;
  }
}