/* W6: reduce simultaneous decisions without changing either tool's teaching logic. */

body.music-tool .tool-heading,
body.physics-tool .tool-heading {
  padding: 28px 0 18px;
}

body.music-tool .tool-heading h1,
body.physics-tool .tool-heading h1 {
  margin-bottom: 10px;
}

body.music-tool .lead {
  color: #dbe9ed;
  font-size: 16px;
  font-weight: 850;
}

body.music-tool .chips,
body.physics-tool .chips {
  margin-top: 14px;
}

body.music-tool .view-tabs {
  margin-bottom: 14px;
}

body.music-tool .material-panel {
  width: min(920px, 100%);
  margin: 0 auto;
  padding: 18px 20px;
}

body.music-tool .material-panel .panel-head {
  margin-bottom: 8px;
}

body.music-tool .upload-list {
  gap: 0;
  border-top: 1px solid var(--tool-line);
}

body.music-tool .upload-row {
  min-height: 50px;
  padding: 8px 0;
  border: 0;
  border-bottom: 1px solid var(--tool-line);
  border-radius: 0;
  background: transparent;
}

body.music-tool .score-preview[hidden] {
  display: none;
}

body.music-tool .score-preview {
  min-height: 0;
  margin-top: 12px;
}

body.music-tool .privacy-line {
  margin: 10px 0 0;
}

body.music-tool .material-panel .message {
  margin-bottom: 0;
}

body.music-tool .view-primary-action {
  width: min(220px, 100%);
  display: block;
  margin: 12px 0 0 auto;
}

body.music-tool .feedback-grid {
  display: grid;
  grid-template-columns: minmax(320px, .9fr) minmax(360px, 1.1fr);
  gap: 14px;
}

body.music-tool .feedback-grid .tool-panel {
  min-width: 0;
}

body.music-tool .feedback-panel {
  max-width: none;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

body.music-tool .feedback-score {
  font-size: clamp(76px, 9vw, 112px);
}

body.music-tool .feedback-comment {
  margin: 14px auto;
  font-size: 18px;
}

body.music-tool .feedback-panel .action-row {
  margin-top: 10px;
}

body.physics-tool .physics-workbench {
  margin-top: 0;
}

body.physics-tool .physics-workbench .stage-meta {
  max-width: 760px;
  line-height: 1.45;
  text-align: right;
}

body.physics-tool .physics-mode-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  margin: 14px 18px 0;
  padding: 5px;
  border: 1px solid var(--tool-line);
  border-radius: 14px;
  background: rgba(5, 15, 21, .78);
}

body.physics-tool .physics-mode-tab {
  min-height: 44px;
  border: 0;
  border-radius: 9px;
  color: var(--tool-muted);
  background: transparent;
  font-size: 15px;
}

body.physics-tool .physics-mode-tab[aria-selected="true"] {
  color: var(--tool-accent-ink);
  background: linear-gradient(135deg, var(--tool-accent), var(--tool-accent-2));
}

body.physics-tool .physics-mode-panel[hidden] {
  display: none;
}

body.physics-tool .physics-mode-panel {
  padding: 14px 18px 18px;
}

body.physics-tool .force-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(330px, .65fr);
  gap: 16px;
  align-items: stretch;
}

body.physics-tool .physics-workbench .demo-wrap {
  width: 100%;
  height: 330px;
  margin: 0;
}

body.physics-tool .force-controls {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 0;
  padding: 0;
}

body.physics-tool .force-controls .control-card {
  padding: 10px 0 12px;
  border: 0;
  border-bottom: 1px solid var(--tool-line);
  border-radius: 0;
  background: transparent;
}

body.physics-tool .force-controls .control-card:first-child {
  padding-top: 0;
}

body.physics-tool .force-controls .control-card h2 {
  margin: 0 0 5px;
  font-size: 18px;
}

body.physics-tool .force-controls .slider-row {
  grid-template-columns: 44px minmax(0, 1fr) 46px;
  gap: 8px;
  font-size: 14px;
}

body.physics-tool .force-controls .value {
  font-size: 17px;
}

body.physics-tool .force-controls .button-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  margin-top: 7px;
}

body.physics-tool .force-controls .button-row button,
body.physics-tool .force-controls .preset-card button {
  min-height: 34px;
  padding: 6px 9px;
  border-radius: 7px;
  font-size: 13px;
}

body.physics-tool .force-controls .preset-card {
  display: grid;
  grid-template-columns: auto repeat(3, minmax(0, 1fr));
  gap: 6px;
  align-items: center;
  padding-top: 12px;
  border-top: 0;
}

body.physics-tool .force-controls .preset-label {
  font-size: 14px;
}

body.physics-tool .compact-result {
  min-height: 68px;
  display: grid;
  grid-template-columns: minmax(220px, auto) minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  margin-top: 14px;
  padding: 11px 14px;
  border-top: 1px solid var(--tool-line);
}

body.physics-tool .result-summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  white-space: nowrap;
}

body.physics-tool .compact-result .result-main {
  font-size: 28px;
}

body.physics-tool .compact-result .result-direction {
  margin: 0;
  color: var(--tool-muted);
  font-size: 15px;
}

body.physics-tool .compact-result .conclusion {
  padding: 0;
  border: 0;
  color: #dce9ee;
  background: transparent;
  font-size: 16px;
  line-height: 1.45;
}

body.physics-tool .motion-panel {
  margin: 0;
}

body.physics-tool .motion-grid {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0;
}

body.physics-tool .motion-stage,
body.physics-tool .chart-card {
  padding: 12px 16px;
  border: 0;
  border-radius: 0;
  background: transparent;
}

body.physics-tool .motion-stage {
  padding-left: 0;
  border-right: 1px solid var(--tool-line);
}

body.physics-tool .chart-card {
  padding-right: 0;
}

body.physics-tool .motion-controls {
  display: grid;
  grid-template-columns: minmax(160px, 1fr) auto auto;
  gap: 8px;
}

body.physics-tool .motion-controls button,
body.physics-tool .motion-option {
  min-height: 40px;
  padding: 7px 11px;
  font-size: 14px;
}

body.physics-tool .motion-controls .motion-primary {
  border-color: transparent;
  color: var(--tool-accent-ink);
  background: linear-gradient(135deg, var(--tool-accent), var(--tool-accent-2));
}

body.physics-tool .motion-track {
  height: 178px;
}

body.physics-tool .motion-result-strip {
  margin-top: 10px;
  padding-top: 9px;
  border-top: 1px solid var(--tool-line);
}

body.physics-tool .motion-readout {
  margin: 0;
  font-size: 17px;
}

body.physics-tool .motion-conclusion {
  margin: 4px 0 0;
  padding: 0;
  border: 0;
  color: var(--tool-muted);
  background: transparent;
  font-size: 14px;
}

body.physics-tool .chart-title {
  font-size: 18px;
}

body.physics-tool #vtChart {
  height: 246px;
}

body.physics-tool .chart-note {
  font-size: 12px;
}

:where(.view-tab, .physics-mode-tab):focus-visible {
  outline: 2px solid var(--tool-accent);
  outline-offset: 3px;
}

@media (max-width: 900px) {
  body.music-tool .feedback-grid,
  body.physics-tool .force-workspace,
  body.physics-tool .motion-grid {
    grid-template-columns: 1fr;
  }

  body.physics-tool .motion-stage {
    padding: 0 0 14px;
    border-right: 0;
    border-bottom: 1px solid var(--tool-line);
  }

  body.physics-tool .chart-card {
    padding: 14px 0 0;
  }
}

@media (max-width: 560px) {
  body.music-tool .tool-heading,
  body.physics-tool .tool-heading {
    padding: 20px 0 14px;
  }

  body.music-tool .tool-heading .eyebrow,
  body.physics-tool .tool-heading .eyebrow {
    margin-bottom: 7px;
  }

  body.music-tool .tool-heading h1,
  body.physics-tool .tool-heading h1 {
    margin-bottom: 9px;
    font-size: 30px;
  }

  body.music-tool .tool-heading .lead,
  body.physics-tool .tool-heading .lead {
    font-size: 13px;
    line-height: 1.55;
  }

  body.music-tool .chips,
  body.physics-tool .chips {
    gap: 6px;
    margin-top: 10px;
  }

  body.music-tool .chip,
  body.physics-tool .chip {
    min-height: 30px;
    padding: 4px 9px;
    font-size: 12px;
  }

  body.music-tool .material-panel {
    padding: 14px;
  }

  body.music-tool .upload-row {
    min-height: 58px;
  }

  body.music-tool .view-primary-action {
    width: 100%;
  }

  body.music-tool .feedback-grid {
    gap: 10px;
  }

  body.physics-tool .physics-mode-tabs {
    margin: 10px 10px 0;
  }

  body.physics-tool .physics-workbench .stage-meta {
    max-width: none;
    font-size: 12px;
    line-height: 1.55;
    text-align: left;
  }

  body.physics-tool .physics-mode-panel {
    padding: 10px;
  }

  body.physics-tool .physics-workbench .demo-wrap {
    height: 276px;
  }

  body.physics-tool .force-controls {
    padding-top: 4px;
  }

  body.physics-tool .force-controls .preset-card {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  body.physics-tool .force-controls .preset-label {
    grid-column: 1 / -1;
  }

  body.physics-tool .compact-result {
    grid-template-columns: 1fr;
    gap: 5px;
    padding: 10px 4px 2px;
  }

  body.physics-tool .compact-result .result-main {
    font-size: 25px;
  }

  body.physics-tool .motion-controls {
    grid-template-columns: 1fr 1fr;
  }

  body.physics-tool .motion-option {
    grid-column: 1 / -1;
  }

  body.physics-tool .motion-controls button,
  body.physics-tool .motion-option {
    width: 100%;
    justify-content: center;
  }

  body.physics-tool #vtChart {
    height: 216px;
  }
}