.maze-editor {
  --maze-ink: #082f38;
  --maze-grid: rgba(104, 170, 183, 0.28);
  --maze-wall: #66d9ef;
  --maze-start: #f2b84b;
  --maze-goal: #ff5a4f;
  overflow: hidden;
  scroll-margin-top: 5.5rem;
}

.maze-editor__heading {
  border-bottom: 1px solid var(--line);
}

.maze-editor__version-meta {
  display: grid;
  justify-items: end;
  gap: 0.25rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.maze-editor__version-meta strong {
  color: var(--ink);
  max-width: 22rem;
  overflow: hidden;
  text-overflow: ellipsis;
}

.maze-editor__workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(18rem, 0.72fr);
  min-height: 35rem;
}

.maze-stage {
  display: grid;
  grid-template-rows: auto minmax(28rem, 1fr) auto;
  min-width: 0;
  padding: 1rem;
  background:
    linear-gradient(rgba(15, 75, 86, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 75, 86, 0.035) 1px, transparent 1px),
    #edf3f4;
  background-size: 1.25rem 1.25rem;
}

.maze-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  padding-bottom: 0.75rem;
}

.maze-tools button {
  min-height: 2.1rem;
  padding: 0 0.85rem;
  border: 1px solid #a9bec3;
  background: #f8fbfb;
  color: var(--ink);
  font-weight: 720;
}

.maze-tools button:hover:not(:disabled),
.maze-tools button.is-active {
  border-color: #176b7b;
  background: #176b7b;
  color: white;
}

.maze-tools__divider {
  width: 1px;
  height: 1.7rem;
  margin: 0 0.25rem;
  background: #b6c9cd;
}

.maze-canvas-shell {
  position: relative;
  min-height: 28rem;
  overflow: hidden;
  border: 1px solid #2c616c;
  background:
    radial-gradient(circle at center, rgba(37, 121, 138, 0.13), transparent 66%),
    #062a33;
  box-shadow: inset 0 0 0 1px rgba(129, 221, 235, 0.11);
}

.maze-canvas {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 28rem;
  cursor: crosshair;
  touch-action: none;
  user-select: none;
}

.maze-canvas .source-image {
  pointer-events: none;
}

.maze-canvas .grid-line {
  stroke: var(--maze-grid);
  stroke-width: 1px;
  vector-effect: non-scaling-stroke;
}

.maze-canvas .wall-line {
  stroke: var(--maze-wall);
  stroke-width: 7px;
  stroke-linecap: square;
  vector-effect: non-scaling-stroke;
  filter: drop-shadow(0 0 0.08rem rgba(102, 217, 239, 0.35));
}

.maze-canvas .start-cell {
  fill: color-mix(in srgb, var(--maze-start) 24%, transparent);
  stroke: var(--maze-start);
  stroke-width: 2px;
  vector-effect: non-scaling-stroke;
}

.maze-canvas .start-arrow {
  fill: var(--maze-start);
}

.maze-canvas .goal-cell {
  fill: color-mix(in srgb, var(--maze-goal) 25%, transparent);
  stroke: var(--maze-goal);
  stroke-width: 2px;
  vector-effect: non-scaling-stroke;
}

.maze-canvas .calibration-point {
  fill: white;
  stroke: #f2b84b;
  stroke-width: 2px;
  vector-effect: non-scaling-stroke;
}

.maze-canvas-legend {
  position: absolute;
  right: 0.7rem;
  bottom: 0.65rem;
  display: flex;
  gap: 0.8rem;
  padding: 0.45rem 0.6rem;
  background: rgba(3, 27, 33, 0.78);
  color: #d8edf0;
  font-size: 0.7rem;
  backdrop-filter: blur(5px);
}

.maze-canvas-legend span {
  display: inline-flex;
  gap: 0.35rem;
  align-items: center;
}

.maze-canvas-legend i {
  width: 0.7rem;
  height: 0.7rem;
  border: 2px solid currentColor;
}

.maze-canvas-legend .is-wall {
  color: var(--maze-wall);
}

.maze-canvas-legend .is-start {
  color: var(--maze-start);
}

.maze-canvas-legend .is-goal {
  color: var(--maze-goal);
  border-radius: 50%;
}

.maze-editor__message {
  min-height: 2.2rem;
  margin: 0;
  padding: 0.75rem 0 0;
  color: #43636a;
  font-size: 0.78rem;
}

.maze-editor__message.is-error {
  color: #b6241c;
}

.maze-inspector {
  padding: 1rem;
  border-left: 1px solid var(--line);
  background: #f8fbfb;
}

.maze-inspector__block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.4rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid #cfdee1;
}

.maze-inspector__block:first-child {
  padding-top: 0;
}

.maze-inspector label {
  display: grid;
  gap: 0.25rem;
  color: #567078;
  font-size: 0.72rem;
  font-weight: 700;
}

.maze-inspector input,
.maze-inspector select {
  width: 100%;
  min-height: 2.3rem;
  border: 1px solid #b5c9cd;
  border-radius: 2px;
  background: white;
  color: var(--ink);
  padding: 0.45rem 0.55rem;
}

.maze-dimensions {
  grid-template-columns: 1fr 1fr;
}

.maze-dimensions .utility-label,
.maze-dimensions button {
  grid-column: 1 / -1;
}

.maze-inspector__actions {
  padding-top: 1rem;
}

.maze-inspector__actions button {
  width: 100%;
}

.maze-inspector__actions p {
  margin: 0.65rem 0 0;
  color: #5e777e;
  font-size: 0.72rem;
  line-height: 1.55;
}

@media (max-width: 900px) {
  .maze-editor__workspace {
    grid-template-columns: 1fr;
  }

  .maze-stage {
    min-height: auto;
  }

  .maze-inspector {
    border-top: 1px solid var(--line);
    border-left: 0;
  }
}

@media (max-width: 600px) {
  .maze-stage {
    padding: 0.65rem;
  }

  .maze-canvas,
  .maze-canvas-shell {
    min-height: 22rem;
  }

  .maze-tools button {
    flex: 1 1 calc(33.333% - 0.4rem);
    padding-inline: 0.4rem;
  }

  .maze-tools__divider {
    display: none;
  }

  .maze-canvas-legend {
    left: 0.5rem;
    right: auto;
    gap: 0.45rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .maze-tools button {
    transition: none;
  }
}