:root {
  color-scheme: dark;
  --bg: #060811;
  --panel: #0c1120;
  --panel-2: #11182a;
  --panel-3: #151f34;
  --line: #263651;
  --line-bright: #3d577a;
  --text: #d7e4ea;
  --muted: #71869b;
  --cyan: #27ead8;
  --cyan-soft: rgba(39, 234, 216, .13);
  --magenta: #ff43c6;
  --amber: #f3bc4f;
  --red: #ff4965;
  --green: #7bf27f;
  --shadow: 0 18px 70px rgba(0, 0, 0, .45);
  --mono: "Cascadia Code", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans: Inter, "Segoe UI", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--bg);
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 4%, rgba(27, 116, 143, .18), transparent 34rem),
    radial-gradient(circle at 88% 30%, rgba(147, 33, 121, .12), transparent 38rem),
    linear-gradient(155deg, #070a14 0%, #080b14 52%, #05070d 100%);
  font-family: var(--sans);
}

button,
textarea,
input,
select {
  font: inherit;
}

button,
select {
  color: inherit;
}

button:focus-visible,
textarea:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.ambient-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .22;
  background-image:
    linear-gradient(rgba(64, 100, 128, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(64, 100, 128, .08) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(to bottom, black, transparent 88%);
}

.app-shell {
  width: min(1500px, calc(100% - 32px));
  margin: 0 auto;
  padding: 22px 0 18px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 62px;
  padding: 0 4px 14px;
  border-bottom: 1px solid rgba(67, 92, 122, .35);
}

.brand-block,
.system-state,
.panel-title,
.file-tab {
  display: flex;
  align-items: center;
}

.brand-block {
  gap: 12px;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: #061317;
  background: var(--cyan);
  border: 2px solid #a9fff6;
  box-shadow: 0 0 20px rgba(39, 234, 216, .4), inset 0 0 0 3px #0b6f70;
  clip-path: polygon(18% 0, 100% 0, 100% 82%, 82% 100%, 0 100%, 0 18%);
  font: 900 23px/1 var(--mono);
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--cyan);
  font: 700 10px/1.2 var(--mono);
  letter-spacing: .2em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font: 850 23px/1 var(--mono);
  letter-spacing: .03em;
}

h1 span {
  color: var(--magenta);
}

.system-state {
  gap: 10px;
  color: var(--muted);
  text-align: right;
  font-family: var(--mono);
}

.system-state small,
.system-state strong {
  display: block;
}

.system-state small {
  margin-bottom: 3px;
  font-size: 8px;
  letter-spacing: .16em;
}

.system-state strong {
  color: #a8b9c6;
  font-size: 10px;
  letter-spacing: .08em;
}

.status-light {
  width: 9px;
  height: 9px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 11px var(--cyan);
  animation: status-pulse 1.8s steps(2, end) infinite;
}

@keyframes status-pulse {
  50% { opacity: .45; }
}

.level-nav {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2px;
  margin: 14px 0 10px;
  padding: 3px;
  background: rgba(8, 13, 24, .88);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.level-button {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 8px 12px;
  overflow: hidden;
  color: var(--muted);
  background: transparent;
  border: 0;
  cursor: pointer;
  text-align: left;
  transition: color .18s ease, background .18s ease;
}

.level-button::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 2px;
  background: transparent;
}

.level-button:hover {
  color: var(--text);
  background: rgba(39, 234, 216, .04);
}

.level-button.active {
  color: var(--text);
  background: linear-gradient(90deg, rgba(39, 234, 216, .12), transparent);
}

.level-button.active::after {
  background: var(--cyan);
  box-shadow: 0 0 9px var(--cyan);
}

.level-button.complete::before {
  content: "✓";
  position: absolute;
  top: 4px;
  right: 6px;
  color: var(--green);
  font: 700 10px var(--mono);
}

.level-number {
  color: #405772;
  font: 800 18px/1 var(--mono);
}

.level-button.active .level-number {
  color: var(--cyan);
  text-shadow: 0 0 10px rgba(39, 234, 216, .5);
}

.level-name {
  font: 700 10px/1.2 var(--mono);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.mission-strip {
  position: relative;
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) minmax(220px, 390px);
  align-items: center;
  gap: 18px;
  min-height: 94px;
  margin-bottom: 10px;
  padding: 14px 18px;
  overflow: hidden;
  background: linear-gradient(110deg, rgba(17, 28, 47, .96), rgba(9, 14, 25, .94));
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}

.mission-strip::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--magenta);
  box-shadow: 0 0 15px var(--magenta);
}

.mission-index {
  color: #263b54;
  font: 900 48px/1 var(--mono);
  text-align: center;
}

.mission-copy h2 {
  margin-bottom: 6px;
  font: 750 20px/1.1 var(--mono);
}

.mission-copy > p:last-child {
  max-width: 780px;
  margin-bottom: 0;
  color: #9bb0be;
  font-size: 13px;
  line-height: 1.5;
}

.learning-chip {
  padding: 10px 13px;
  background: rgba(39, 234, 216, .05);
  border-left: 2px solid var(--cyan);
}

.learning-chip span,
.learning-chip strong {
  display: block;
}

.learning-chip span {
  margin-bottom: 5px;
  color: var(--cyan);
  font: 700 9px var(--mono);
  letter-spacing: .15em;
}

.learning-chip strong {
  color: #b9cbd3;
  font-size: 12px;
  line-height: 1.35;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(430px, .88fr);
  gap: 10px;
  min-height: 530px;
}

.panel {
  min-width: 0;
  overflow: hidden;
  background: rgba(10, 15, 27, .97);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.panel-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 46px;
  padding: 7px 12px;
  background: linear-gradient(180deg, #172138, #11182a);
  border-bottom: 1px solid var(--line);
}

.panel-title {
  gap: 9px;
}

.panel-icon {
  display: grid;
  width: 25px;
  height: 25px;
  place-items: center;
  color: var(--cyan);
  background: rgba(39, 234, 216, .08);
  border: 1px solid rgba(39, 234, 216, .25);
  font-size: 11px;
}

.panel-title small,
.panel-title strong {
  display: block;
  font-family: var(--mono);
}

.panel-title small {
  margin-bottom: 2px;
  color: var(--muted);
  font-size: 8px;
  letter-spacing: .14em;
}

.panel-title strong {
  font-size: 10px;
  letter-spacing: .07em;
}

.case-chips {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.case-chip {
  padding: 4px 7px;
  color: #70859a;
  background: #0c1322;
  border: 1px solid #273851;
  font: 700 8px var(--mono);
  letter-spacing: .04em;
}

.case-chip.active {
  color: var(--amber);
  border-color: rgba(243, 188, 79, .6);
  box-shadow: inset 0 0 10px rgba(243, 188, 79, .08);
}

.case-chip.pass {
  color: var(--green);
  border-color: rgba(123, 242, 127, .5);
}

.canvas-wrap {
  position: relative;
  min-height: 438px;
  overflow: hidden;
  background: #070a13;
}

#lab-canvas {
  display: block;
  width: 100%;
  height: 438px;
  cursor: crosshair;
  image-rendering: pixelated;
}

#lab-canvas.has-hover {
  cursor: copy;
}

.day-overlay {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: grid;
  place-items: center;
  color: var(--cyan);
  background: rgba(3, 7, 16, .82);
  font: 700 clamp(1.4rem, 5vw, 2.8rem)/1 var(--font-mono);
  letter-spacing: .16em;
  text-shadow: 0 0 18px rgba(42, 240, 223, .7);
  animation: day-transition 900ms ease both;
  pointer-events: none;
}

.day-overlay[hidden] { display: none; }

@keyframes day-transition {
  0%, 100% { opacity: 0; }
  25%, 72% { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .day-overlay { animation: none; opacity: 1; }
}

.scanlines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .16;
  background: repeating-linear-gradient(to bottom, transparent 0, transparent 3px, rgba(127, 212, 220, .13) 4px);
  mix-blend-mode: screen;
}

.entity-tooltip {
  position: absolute;
  top: 14px;
  left: 14px;
  min-width: 150px;
  padding: 8px 10px;
  color: var(--text);
  background: rgba(7, 11, 20, .94);
  border: 1px solid var(--cyan);
  box-shadow: 0 0 20px rgba(39, 234, 216, .14);
  font: 11px/1.4 var(--mono);
  white-space: pre-line;
}

.entity-tooltip strong {
  display: block;
  color: var(--cyan);
}

.entity-tooltip span {
  color: var(--muted);
}

.canvas-help {
  position: absolute;
  right: 12px;
  bottom: 10px;
  display: flex;
  align-items: center;
  gap: 7px;
  color: #60768a;
  font: 8px var(--mono);
  letter-spacing: .05em;
}

.canvas-help span {
  padding: 3px 5px;
  color: #9fb0be;
  background: rgba(14, 22, 37, .9);
  border: 1px solid #2e4058;
}

.lab-footer {
  display: flex;
  gap: 18px;
  min-height: 34px;
  align-items: center;
  padding: 6px 12px;
  color: #6d8193;
  background: #0b101d;
  border-top: 1px solid #1b2b42;
  font: 8px var(--mono);
}

.legend-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 5px;
  box-shadow: 0 0 6px currentColor;
}

.legend-dot.cyan { color: var(--cyan); background: var(--cyan); }
.legend-dot.magenta { color: var(--magenta); background: var(--magenta); }
.legend-dot.red { color: var(--red); background: var(--red); }

.code-panel {
  display: grid;
  grid-template-rows: auto minmax(285px, 1fr) minmax(150px, auto);
}

.code-bar {
  background: #121a2b;
}

.file-tab {
  gap: 8px;
  font: 11px var(--mono);
}

.csharp-badge {
  display: grid;
  width: 26px;
  height: 26px;
  place-items: center;
  color: #081316;
  background: var(--cyan);
  font: 900 9px var(--mono);
  clip-path: polygon(0 0, 80% 0, 100% 20%, 100% 100%, 0 100%);
}

.dirty-dot {
  width: 5px;
  height: 5px;
  margin-left: 2px;
  background: var(--magenta);
  border-radius: 50%;
  box-shadow: 0 0 7px var(--magenta);
}

.edit-policy {
  padding: 4px 7px;
  color: var(--cyan);
  background: rgba(39, 234, 216, .05);
  border: 1px solid rgba(39, 234, 216, .25);
  font: 700 8px var(--mono);
  letter-spacing: .08em;
}

.editor-area {
  position: relative;
  min-height: 285px;
  background: #090d18;
  border-bottom: 1px solid var(--line);
}

.code-editor-shell {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.line-gutter {
  position: absolute;
  inset: 0 auto 0 0;
  z-index: 3;
  width: 42px;
  padding: 14px 9px;
  overflow: hidden;
  color: #3d5068;
  background: #080c16;
  border-right: 1px solid #172239;
  font: 13px/1.65 var(--mono);
  text-align: right;
  user-select: none;
}

.syntax-mirror,
#code-editor {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 14px 16px 80px 54px;
  overflow: auto;
  border: 0;
  white-space: pre;
  tab-size: 4;
  font: 14px/1.65 var(--mono);
}

.syntax-mirror {
  z-index: 1;
  color: #d7e5e8;
  pointer-events: none;
}

#code-editor {
  z-index: 2;
  resize: none;
  color: transparent;
  caret-color: #f2fbff;
  background: transparent;
  -webkit-text-fill-color: transparent;
  scrollbar-color: #263a55 transparent;
}

#code-editor::selection {
  background: rgba(39, 234, 216, .28);
}

#code-editor[readonly] {
  cursor: default;
}

.tok-keyword { color: #ff69c9; }
.tok-type { color: #6fc5ff; }
.tok-identifier { color: #d5e1e7; }
.tok-number { color: #f2bf69; }
.tok-operator { color: #4debdc; font-weight: 700; }
.tok-comment { color: #526b76; font-style: italic; }

.current-line {
  position: absolute;
  z-index: 0;
  right: 0;
  left: 42px;
  height: 23px;
  opacity: 0;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(39, 234, 216, .14), rgba(39, 234, 216, .025));
  border-left: 2px solid var(--cyan);
  box-shadow: inset 0 0 18px rgba(39, 234, 216, .06);
  transition: top .14s ease, opacity .14s ease;
}

.current-line.visible {
  opacity: 1;
}

.branch-dim-layer {
  position: absolute;
  z-index: 3;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.branch-dim-range {
  position: absolute;
  right: 0;
  left: 42px;
  background: rgba(3, 6, 12, .72);
  border-left: 2px solid #556174;
  box-shadow: inset 0 0 22px rgba(0, 0, 0, .42);
}

.branch-dim-range::after {
  position: absolute;
  top: 3px;
  right: 12px;
  padding: 2px 5px;
  color: #9da8b8;
  background: #111827;
  border: 1px solid #3c485b;
  content: "ÜBERSPRUNGEN";
  font: 8px var(--mono);
  letter-spacing: .08em;
}

.completion-popup {
  position: absolute;
  z-index: 6;
  right: 12px;
  bottom: 12px;
  width: min(300px, calc(100% - 66px));
  max-height: 150px;
  overflow: auto;
  background: #0e1626;
  border: 1px solid #3a5474;
  box-shadow: 0 12px 34px rgba(0, 0, 0, .48), 0 0 18px rgba(39, 234, 216, .08);
}

.completion-item {
  display: flex;
  width: 100%;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  color: #bdccd4;
  background: transparent;
  border: 0;
  border-bottom: 1px solid #1d2b40;
  cursor: pointer;
  font: 11px var(--mono);
  text-align: left;
}

.completion-item:hover,
.completion-item.active {
  color: white;
  background: rgba(39, 234, 216, .1);
}

.completion-kind {
  display: grid;
  width: 20px;
  height: 20px;
  place-items: center;
  color: #071315;
  background: var(--cyan);
  font-size: 8px;
  font-weight: 900;
}

.token-editor {
  position: absolute;
  inset: 0;
  padding: 18px;
  background:
    linear-gradient(rgba(255, 67, 198, .035), transparent),
    #090d18;
}

.token-editor-head {
  display: flex;
  justify-content: space-between;
  margin-bottom: 26px;
  color: var(--muted);
  font: 9px var(--mono);
  letter-spacing: .12em;
}

.token-editor-head strong {
  color: var(--magenta);
}

.token-code {
  margin: 0;
  padding: 18px;
  overflow: auto;
  color: #d5e1e7;
  background: #070a12;
  border: 1px solid #202e44;
  font: 14px/1.9 var(--mono);
  white-space: pre-wrap;
}

.token-editor.executing .token-code {
  border-color: var(--cyan);
  box-shadow: inset 3px 0 0 var(--cyan), 0 0 18px rgba(39, 234, 216, .08);
}

#operator-input {
  width: 42px;
  height: 28px;
  margin: 0 5px;
  padding: 2px 6px;
  color: var(--magenta);
  background: rgba(255, 67, 198, .08);
  border: 1px solid var(--magenta);
  box-shadow: 0 0 12px rgba(255, 67, 198, .2);
  font: 800 15px var(--mono);
  text-align: center;
}

.token-budget {
  margin-top: 12px;
  color: #758a9e;
  font: 9px var(--mono);
  letter-spacing: .05em;
}

#budget-led {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 6px;
  background: var(--amber);
  box-shadow: 0 0 8px var(--amber);
}

.debug-deck {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  min-height: 150px;
  background: #0b101c;
}

.debug-block + .debug-block {
  border-left: 1px solid var(--line);
}

.debug-block > header {
  display: flex;
  justify-content: space-between;
  padding: 8px 10px;
  color: #72879a;
  background: #101728;
  border-bottom: 1px solid #1e2b41;
  font: 8px var(--mono);
  letter-spacing: .1em;
}

.debug-block > header small {
  color: var(--cyan);
}

.variable-list,
.trace-list {
  max-height: 150px;
  overflow: auto;
  padding: 8px 10px;
  scrollbar-width: thin;
}

.variable-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  padding: 5px 0;
  border-bottom: 1px dotted #203049;
  font: 10px var(--mono);
}

.variable-row span {
  color: #8da0ae;
}

.variable-row strong {
  color: var(--amber);
}

.variable-row strong.bool-true { color: var(--green); }
.variable-row strong.bool-false { color: var(--red); }

.trace-entry {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 7px;
  padding: 5px 0;
  color: #92a6b3;
  border-bottom: 1px dotted #1c2a40;
  font: 9px/1.35 var(--mono);
}

.trace-entry b {
  color: #506a83;
}

.trace-entry strong {
  color: var(--cyan);
}

.trace-entry.error strong { color: var(--red); }
.trace-entry.success strong { color: var(--green); }

.empty-trace {
  margin: 8px 0;
  color: #465a70;
  font: 9px/1.4 var(--mono);
}

.control-deck {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 10px;
  align-items: center;
  margin-top: 10px;
  padding: 10px;
  background: rgba(12, 17, 31, .98);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.primary-controls {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
}

.control-button,
.next-button {
  min-height: 36px;
  padding: 8px 13px;
  color: #8fa3b2;
  background: #121b2d;
  border: 1px solid #30445f;
  cursor: pointer;
  font: 800 9px var(--mono);
  letter-spacing: .06em;
  transition: transform .12s ease, color .12s ease, border-color .12s ease, background .12s ease;
}

.control-button:hover:not(:disabled),
.next-button:hover {
  color: white;
  border-color: #5a789b;
  transform: translateY(-1px);
}

.control-button:active:not(:disabled),
.next-button:active {
  transform: translateY(0);
}

.control-button:disabled {
  opacity: .35;
  cursor: not-allowed;
}

.control-button.primary {
  color: #051314;
  background: var(--cyan);
  border-color: #94fff5;
  box-shadow: 0 0 18px rgba(39, 234, 216, .2);
}

.control-button.danger:hover:not(:disabled) {
  color: var(--red);
  border-color: var(--red);
}

.control-button.help {
  color: var(--amber);
  border-color: rgba(243, 188, 79, .45);
}

.speed-control {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #61778a;
  font: 8px var(--mono);
  letter-spacing: .08em;
}

.speed-control select {
  height: 34px;
  padding: 0 28px 0 9px;
  color: #a7bac5;
  background: #0b111e;
  border: 1px solid #2d405a;
  font: 800 9px var(--mono);
}

.feedback-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, .7fr) auto;
  gap: 10px;
  align-items: stretch;
  margin-top: 10px;
}

.status-console,
.hint-panel {
  min-height: 52px;
  padding: 10px 12px;
  background: #090e19;
  border: 1px solid #22334b;
}

.status-console {
  display: flex;
  align-items: center;
  gap: 10px;
}

.console-prefix,
.hint-label {
  flex: 0 0 auto;
  color: var(--cyan);
  font: 800 9px var(--mono);
  letter-spacing: .09em;
}

.console-prefix::before {
  content: ">";
  margin-right: 5px;
  color: var(--magenta);
}

.status-console p,
.hint-panel p {
  margin: 0;
  color: #8da0ad;
  font: 10px/1.45 var(--mono);
  white-space: pre-wrap;
}

.status-console.error {
  border-color: rgba(255, 73, 101, .55);
}

.status-console.error .console-prefix {
  color: var(--red);
}

.status-console.success {
  border-color: rgba(123, 242, 127, .5);
}

.status-console.success .console-prefix {
  color: var(--green);
}

.hint-panel {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  border-color: rgba(243, 188, 79, .34);
}

.hint-label {
  color: var(--amber);
}

.next-button {
  color: #071413;
  background: var(--green);
  border-color: #b2ffb5;
  white-space: nowrap;
}

.next-button span {
  margin-left: 8px;
  font-size: 14px;
}

.footer-line {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 4px 0;
  color: #394c62;
  font: 7px var(--mono);
  letter-spacing: .1em;
}

@media (max-width: 1080px) {
  .workspace {
    grid-template-columns: minmax(0, 1fr) minmax(390px, .92fr);
  }

  .mission-strip {
    grid-template-columns: 56px minmax(0, 1fr);
  }

  .learning-chip {
    display: none;
  }

  .control-deck {
    grid-template-columns: 1fr auto;
  }

  .control-button.help {
    grid-column: 2;
  }
}

@media (max-width: 860px) {
  .app-shell {
    width: min(100% - 18px, 760px);
    padding-top: 10px;
  }

  .workspace {
    grid-template-columns: 1fr;
  }

  .canvas-wrap,
  #lab-canvas {
    min-height: 390px;
    height: 390px;
  }

  .code-panel {
    min-height: 520px;
  }

  .level-name {
    display: none;
  }

  .level-button {
    justify-content: center;
  }

  .mission-strip {
    min-height: 104px;
  }

  .feedback-row {
    grid-template-columns: 1fr;
  }

  .next-button {
    min-height: 44px;
  }
}

@media (max-width: 600px) {
  .topbar {
    align-items: flex-start;
  }

  .system-state {
    display: none;
  }

  .mission-strip {
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 10px;
    padding: 12px;
  }

  .mission-index {
    font-size: 34px;
  }

  .mission-copy h2 {
    font-size: 16px;
  }

  .canvas-wrap,
  #lab-canvas {
    min-height: 330px;
    height: 330px;
  }

  .canvas-help,
  .lab-footer {
    display: none;
  }

  .debug-deck {
    grid-template-columns: 1fr;
  }

  .debug-block + .debug-block {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .control-deck {
    grid-template-columns: 1fr;
  }

  .primary-controls {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

  .speed-control {
    justify-content: space-between;
  }

  .control-button.help {
    grid-column: auto;
  }

  .footer-line span:nth-child(2),
  .footer-line span:nth-child(3) {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}