.sim-config form {
  display: grid;
  grid-template-columns: minmax(150px, .8fr) minmax(180px, 1fr) minmax(180px, 1fr) auto;
  gap: 18px;
  align-items: end;
}

.sim-config label {
  display: grid;
  grid-template-rows: minmax(2.5em, auto) 44px;
  gap: 7px;
}

.sim-config .field-label {
  display: flex;
  align-items: end;
}

.sim-config input,
.sim-config select {
  width: 100%;
  height: 44px;
  box-sizing: border-box;
}

.sim-config .speed-input {
  display: grid;
  grid-template-columns: minmax(80px, 1fr) auto;
  gap: 9px;
  align-items: center;
}

.sim-config .speed-input b {
  font-size: .74rem;
}

.sim-config form > .primary-button {
  width: auto;
  min-width: 105px;
  height: 44px;
  padding-inline: 22px;
}

.player-controls #sim-play {
  width: auto;
  min-width: 190px;
  height: auto;
  min-height: 44px;
  padding: 10px 18px;
  white-space: nowrap;
}

@media (max-width: 920px) {
  .sim-config form {
    grid-template-columns: 1fr 1fr;
  }

  .sim-config form > .primary-button {
    width: 100%;
  }

  .player-controls #sim-play {
    width: 100%;
  }
}

@media (max-width: 560px) {
  .sim-config form {
    grid-template-columns: 1fr;
  }
}

/* Keep the working controls and playback above the fold. */
.simulator-workspace {
  padding-top: 16px;
}

.simulator-workspace > .page-heading {
  margin-bottom: 10px;
}

.simulator-workspace > .page-heading h1 {
  font-size: 1.05rem;
}

.simulator-workspace > .page-heading p {
  display: none;
}

.sim-main {
  gap: 12px;
}

.sim-config .panel-heading {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 18px;
}

.sim-config .panel-heading h2 {
  margin: 0;
  font-size: .92rem;
}

.sim-config .panel-heading p {
  margin: 0;
  font-size: .66rem;
}

.sim-config form {
  padding: 10px 18px 8px;
  gap: 14px;
}

.sim-config label {
  grid-template-rows: auto 38px;
  gap: 4px;
  font-size: .66rem;
}

.sim-config input,
.sim-config select,
.sim-config form > .primary-button {
  height: 38px;
  min-height: 38px;
}

.sim-config .algorithm-note,
.algorithm-note {
  padding: 0 18px 10px;
  font-size: .62rem;
  line-height: 1.35;
}

.sim-stage {
  padding: 16px;
}

.player-heading h2 {
  font-size: 1.12rem;
  line-height: 1.15;
}

.player-heading p {
  margin-top: 3px;
  font-size: .62rem;
  line-height: 1.3;
}

.lamp-and-state {
  margin: 14px 0;
}

.simulator-footer-note {
  margin: 14px 0 0;
  color: #718096;
  font-size: .62rem;
  line-height: 1.45;
}

@media (max-width: 920px) {
  .sim-config .panel-heading {
    display: block;
  }

  .sim-config .panel-heading p {
    margin-top: 3px;
  }
}