.walk-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 32px;
  padding: 30px 0 28px;
}
.walk-heading h1 {
  font:
    500 clamp(28px, 3.2vw, 44px)/1.35 "Noto Serif JP",
    serif;
  margin: 8px 0 0;
  min-width: 0;
  overflow-wrap: anywhere;
}
.walk-heading > p {
  margin: 0 0 4px;
  max-width: 510px;
}
.playground {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.body-view {
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: #e7e8dd;
}
.view-bar,
.view-caption {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  font-size: 11px;
}
.view-bar button {
  font-size: 11px;
  min-height: 34px;
  padding: 4px 10px;
}
.view-caption {
  color: var(--muted);
  flex-wrap: wrap;
}
#stage {
  position: relative;
  flex: 1;
  min-height: 335px;
}
#stage canvas {
  display: block;
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
}
#welcome {
  min-height: 335px;
  padding: 64px 20px 30px;
  text-align: center;
}
.stage-mark {
  font:
    500 22px "Noto Serif JP",
    serif;
}
.walk-controls {
  padding: 18px 20px;
  border-left: 1px solid var(--line);
  background: var(--surface);
}
.walk-controls h2,
.feet h2 {
  margin: 3px 0 10px;
  font-size: 17px;
}
.walk-controls .eyebrow {
  margin: 0;
}
.walk-controls p {
  margin: 8px 0;
}
.directions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-top: 16px;
}
.directions [data-command="forward"],
.directions [data-command="stop"] {
  grid-column: 1/-1;
}
.directions [aria-pressed="true"] {
  border-color: var(--accent);
  color: var(--accent);
  background: #f9eee5;
}
.command-label {
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}
.walk-actions {
  display: flex;
  gap: 6px;
  margin-top: 16px;
}
.walk-actions button {
  flex: 1;
  padding-inline: 8px;
  font-size: 12px;
}
#status {
  min-height: 38px;
  font-size: 11px;
  color: var(--muted);
}
#error {
  color: #9c3024;
  font-size: 12px;
  overflow-wrap: anywhere;
}
.reset-line {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 5px 8px;
  margin: 12px 0;
}
.reset-line label {
  grid-column: 1/-1;
  font-size: 11px;
}
.reset-line input {
  width: 100%;
  min-width: 0;
}
.reset-line button,
#export {
  font-size: 12px;
}
.key-help {
  font-size: 10px;
}
.measurements {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  border-bottom: 1px solid var(--line);
}
.body-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  padding: 20px 18px;
  margin: 0;
}
.body-metrics dt {
  font-size: 11px;
  color: var(--muted);
}
.body-metrics dd {
  margin: 5px 0 0;
  font:
    26px "DM Mono",
    monospace;
  font-variant-numeric: tabular-nums;
}
.body-metrics small {
  font-size: 12px;
}
.feet {
  border-left: 1px solid var(--line);
  padding: 14px 20px;
}
.feet h2 {
  font-size: 12px;
}
#contacts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 4px;
}
.foot {
  display: flex;
  justify-content: space-between;
  border-bottom: 2px solid var(--line);
  font-size: 11px;
  padding: 3px 2px;
}
.foot.touching {
  border-color: var(--accent);
}
.feet p {
  font-size: 10px;
  margin: 7px 0 0;
}
.walk-explanation {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 48px;
  padding: 32px 0 50px;
}
.walk-explanation h2 {
  font:
    500 20px "Noto Serif JP",
    serif;
}
.walk-explanation p {
  font-size: 12px;
  max-width: 65ch;
}
.signal-path {
  color: var(--accent);
}
#playground:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}
@media (max-width: 850px) {
  .walk-heading {
    align-items: start;
    gap: 20px;
  }
  .walk-heading > p {
    max-width: 350px;
    font-size: 12px;
  }
  .playground {
    grid-template-columns: minmax(0, 1fr) 265px;
  }
  .walk-controls {
    padding: 16px 12px;
  }
  .measurements {
    grid-template-columns: 1fr;
  }
  .feet {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  #contacts {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}
@media (max-width: 600px) {
  header {
    align-items: start;
    flex-direction: column;
    padding-block: 16px;
    gap: 12px;
  }
  header nav {
    gap: 20px;
  }
  .walk-heading {
    display: block;
    padding-top: 22px;
  }
  .walk-heading > p {
    margin-top: 18px;
  }
  .playground {
    grid-template-columns: 1fr;
  }
  #stage,
  #welcome {
    min-height: 290px;
  }
  .walk-controls {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding: 20px;
  }
  .body-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
  .walk-explanation {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  #contacts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .view-bar,
  .view-caption {
    padding-inline: 12px;
  }
}