.control-shell {
  width: min(1240px, calc(100vw - 32px));
}

.tool-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: end;
  padding: 22px 0 18px;
}

.tool-header h1 {
  font-size: clamp(34px, 5vw, 58px);
}

.title-word {
  white-space: nowrap;
}

.run-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.state-pill {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 14px;
  border: 1px solid color-mix(in srgb, var(--warn) 32%, transparent);
  border-radius: 3px;
  color: var(--warn);
  background: color-mix(in srgb, var(--warn) 8%, transparent);
  font-weight: 700;
  font-size: 13px;
}

.plant-picker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 4px 10px 4px 13px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--panel-soft);
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.plant-picker select {
  min-height: 44px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--panel-soft);
  color: var(--text);
  font: 700 13px var(--font);
}

.run-actions .button[aria-pressed="true"] {
  border-color: color-mix(in srgb, var(--ok) 50%, transparent);
  background: color-mix(in srgb, var(--ok) 15%, transparent);
  color: var(--text);
}

.run-actions .button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.playground {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(310px, 0.72fr);
  gap: 14px;
  align-items: stretch;
}

.sim-panel,
.controls-panel,
.plot-panel,
.metric-card {
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--panel);
}

.sim-panel,
.controls-panel,
.plot-panel {
  min-width: 0;
  padding: 16px;
}

.panel-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.panel-heading h2 {
  font-size: clamp(20px, 2.2vw, 28px);
}

.panel-heading.compact h2 {
  font-size: 20px;
}

.readout-stack {
  display: grid;
  gap: 4px;
  min-width: 136px;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--panel-soft);
  font-size: 12px;
  color: var(--muted);
}

.readout-stack b {
  color: var(--text);
  font-family: var(--mono);
}

.hover-canvas,
.plot-canvas {
  display: block;
  width: 100%;
  max-width: 100%;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--bg);
}

.hover-canvas {
  height: clamp(340px, 48vw, 520px);
}

.plot-canvas {
  height: 230px;
}

.block-strip {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 6px;
  margin-top: 10px;
}

.block-strip span {
  min-width: 0;
  padding: 8px 7px;
  border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
  border-radius: 3px;
  background: color-mix(in srgb, var(--accent) 7%, transparent);
  color: color-mix(in srgb, var(--text) 84%, transparent);
  font-size: 12px;
  text-align: center;
}

.summary {
  margin-top: 10px;
  font-size: 13px;
  color: var(--faint);
}

.controls-panel {
  display: grid;
  gap: 14px;
  align-content: start;
}

.control-group {
  display: grid;
  gap: 12px;
  min-width: 0;
  padding: 13px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--panel-soft);
}

.segmented {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
}

.segmented button,
.toggle-row,
.select-row select {
  min-height: 44px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--panel-soft);
  color: var(--text);
}

.segmented button {
  cursor: pointer;
  font: 700 13px var(--font);
}

.segmented button[aria-pressed="true"] {
  border-color: color-mix(in srgb, var(--ok) 50%, transparent);
  background: color-mix(in srgb, var(--ok) 15%, transparent);
}

.slider-row {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) 54px;
  gap: 9px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
}

.slider-row input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.slider-row output {
  font-family: var(--mono);
  color: var(--text);
  text-align: right;
  font-size: 12px;
}

.slider-row.is-muted,
.toggle-row.is-muted {
  opacity: 0.45;
}

.toggle-row {
  display: flex;
  gap: 9px;
  align-items: center;
  padding: 8px 10px;
  color: var(--muted);
  font-size: 13px;
}

.toggle-row input {
  width: 17px;
  height: 17px;
  accent-color: var(--accent);
}

.select-row {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

.select-row select {
  width: 100%;
  padding: 8px 10px;
}

.guide-group {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px;
}

.guide-grid button {
  min-width: 0;
  min-height: 44px;
  border: 1px solid color-mix(in srgb, var(--warn) 22%, transparent);
  border-radius: 3px;
  background: color-mix(in srgb, var(--warn) 7%, transparent);
  color: var(--text);
  cursor: pointer;
  font: 700 12px var(--font);
}

.guide-grid button:hover,
.guide-grid button:focus-visible {
  border-color: color-mix(in srgb, var(--warn) 46%, transparent);
  background: color-mix(in srgb, var(--warn) 12%, transparent);
}

.plot-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  color: var(--faint);
  font-size: 12px;
}

.legend span {
  width: 18px;
  height: 3px;
  border-radius: 3px;
}

.legend-target { background: var(--warn); }
.legend-actual { background: var(--accent); }
.legend-output { background: var(--ok); }
.legend-limit { background: var(--verm); }

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.metric-card {
  min-width: 0;
  padding: 13px;
  display: grid;
  gap: 5px;
}

.metric-card span {
  color: var(--faint);
  font-size: 12px;
}

.metric-card b {
  color: var(--text);
  font: 700 18px var(--mono);
}

@media (max-width: 960px) {
  .tool-header,
  .playground,
  .plot-grid {
    grid-template-columns: 1fr;
  }

  .run-actions {
    justify-content: flex-start;
  }

  .metrics-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .control-shell {
    width: min(1240px, calc(100vw - 24px));
  }

  .tool-header,
  .tool-header > div {
    min-width: 0;
  }

  .tool-header h1 {
    max-width: 100%;
    font-size: clamp(30px, 9vw, 36px);
    line-height: 1;
    overflow-wrap: break-word;
  }

  .tool-header .lede {
    max-width: 100%;
    overflow-wrap: anywhere;
  }

  .tool-header h1 .title-word {
    display: block;
  }

  .run-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 100%;
  }

  .run-actions .button,
  .run-actions .state-pill,
  .run-actions .plant-picker {
    justify-content: center;
    width: 100%;
    min-width: 0;
    padding-right: 10px;
    padding-left: 10px;
  }

  .run-actions .plant-picker {
    grid-column: 1 / -1;
    justify-content: space-between;
  }

  .run-actions .plant-picker select {
    flex: 1;
  }

  .sim-panel,
  .controls-panel,
  .plot-panel {
    padding: 12px;
  }

  .panel-heading {
    display: grid;
  }

  .readout-stack {
    min-width: 0;
  }

  .block-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .slider-row {
    grid-template-columns: 64px minmax(0, 1fr) 48px;
    gap: 7px;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}