.brand-title-wrap {
  display: grid;
  gap: 2px;
}

.brand-level {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid rgba(20, 33, 29, 0.35);
  background: rgba(255, 255, 255, 0.8);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.brand-nav {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-nav-link {
  color: var(--accent-dark);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  border-bottom: 1px solid transparent;
}

.brand-nav-link:hover {
  border-bottom-color: currentColor;
}

.panel {
  gap: 12px;
}

.block {
  gap: 10px;
}

.block p {
  margin: 0;
  line-height: 1.55;
  color: var(--ink);
}

.block h3 {
  margin: 4px 0 0;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.help-list {
  margin: 0;
  padding-left: 18px;
  line-height: 1.55;
}

.help-list li + li {
  margin-top: 4px;
}

.legend-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.legend-item {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 8px;
  align-items: start;
  border: 1px solid rgba(20, 33, 29, 0.18);
  border-radius: 10px;
  padding: 8px;
  background: rgba(255, 255, 255, 0.72);
}

.legend-item strong {
  display: block;
  margin-bottom: 2px;
}

.legend-swatch {
  width: 24px;
  height: 24px;
  border-radius: 5px;
  border: 1px solid rgba(20, 33, 29, 0.22);
  background: #fff9eb;
  position: relative;
}

.legend-empty {
  background: #fff9eb;
}

.legend-blocked {
  background: var(--wall);
}

.legend-start::after {
  content: "";
  position: absolute;
  inset: 3px;
  border: 2px dashed rgba(20, 33, 29, 0.5);
  border-radius: 50%;
  background: rgba(240, 187, 73, 0.5);
}

.legend-robot::after {
  content: "";
  position: absolute;
  inset: 2px;
  background: center / contain no-repeat url("./assets/robot.svg");
}

.movement-strip {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.sense-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.move-frame {
  margin: 0;
  display: grid;
  gap: 6px;
  justify-items: center;
}

.move-frame figcaption {
  font-size: 12px;
  text-align: center;
  color: var(--muted);
}

.move-arrow {
  border: 1px solid rgba(20, 33, 29, 0.25);
  border-radius: 999px;
  padding: 4px 9px;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
  background: #fff;
  color: var(--accent-dark);
}

.mini-board {
  --cell: 24px;
  --gap: 2px;
  --pad: 2px;
  --step: calc(var(--cell) + var(--gap));
  --robot-row: 2;
  --robot-col: 2;
  --robot-rot: 0deg;
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, var(--cell));
  grid-template-rows: repeat(3, var(--cell));
  gap: var(--gap);
  padding: var(--pad);
  border-radius: 8px;
  background: var(--grid);
}

.mini-board::after {
  content: "";
  position: absolute;
  width: var(--cell);
  height: var(--cell);
  left: calc(var(--pad) + (var(--robot-col) - 1) * var(--step));
  top: calc(var(--pad) + (var(--robot-row) - 1) * var(--step));
  background: center / contain no-repeat url("./assets/robot.svg");
  transform: rotate(var(--robot-rot));
  transform-origin: center;
}

.mini-cell {
  width: var(--cell);
  height: var(--cell);
  border-radius: 4px;
  background: #fff9eb;
  position: relative;
}

.mini-cell.blocked {
  background: var(--wall);
}

.mini-cell.start::after {
  content: "";
  position: absolute;
  inset: 4px;
  border: 2px dashed rgba(20, 33, 29, 0.5);
  border-radius: 50%;
  background: rgba(240, 187, 73, 0.48);
}

.mini-board.robot-r1 {
  --robot-row: 1;
}

.mini-board.robot-r2 {
  --robot-row: 2;
}

.mini-board.robot-r3 {
  --robot-row: 3;
}

.mini-board.robot-c1 {
  --robot-col: 1;
}

.mini-board.robot-c2 {
  --robot-col: 2;
}

.mini-board.robot-c3 {
  --robot-col: 3;
}

.mini-board.robot-n {
  --robot-rot: 0deg;
}

.mini-board.robot-e {
  --robot-rot: 90deg;
}

.mini-board.robot-s {
  --robot-rot: 180deg;
}

.mini-board.robot-w {
  --robot-rot: 270deg;
}

.help-table-wrap {
  border: 1px solid rgba(20, 33, 29, 0.2);
  border-radius: 12px;
  overflow: auto;
  background: #fff;
}

.help-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}

.help-table th,
.help-table td {
  border-bottom: 1px solid rgba(20, 33, 29, 0.14);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
  line-height: 1.45;
}

.help-table th {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(20, 33, 29, 0.04);
}

.help-table tbody tr:last-child td {
  border-bottom: none;
}

.help-code {
  margin: 0;
  border: 1px solid rgba(20, 33, 29, 0.2);
  border-radius: 10px;
  background: #fff;
  padding: 10px;
  overflow: auto;
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  line-height: 1.45;
}

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

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

@media (max-width: 640px) {
  .brand-nav {
    gap: 8px;
  }

  .brand-nav-link {
    font-size: 12px;
  }

  .brand-level {
    font-size: 11px;
  }

  .movement-strip {
    gap: 8px;
  }

  .move-arrow {
    padding: 3px 8px;
  }
}