button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

h1:focus {
  outline: none;
}

.site-header nav a.active {
  color: var(--seafoam);
}

footer {
  align-items: center;
}

.loading-shell {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 1.25rem;
  background: var(--abyss, #061a2b);
}

.loading-shell img {
  border-radius: 1rem;
}

.loading-progress {
  width: 7rem;
  height: 7rem;
}

.loading-progress circle {
  fill: none;
  stroke: rgba(142, 177, 192, 0.18);
  stroke-width: 0.45rem;
  transform: rotate(-90deg);
  transform-origin: 50% 50%;
}

.loading-progress circle:last-child {
  stroke: #1cc8e5;
  stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
  transition: stroke-dasharray 0.05s ease-in-out;
}

.loading-progress-text {
  color: #8eb1c0;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.loading-progress-text::after {
  content: var(--blazor-load-percentage-text, "Loading");
}

#blazor-error-ui {
  position: fixed;
  z-index: 1000;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  display: none;
  max-width: 48rem;
  margin: 0 auto;
  padding: 1rem 3rem 1rem 1rem;
  border: 1px solid #dc7e73;
  border-radius: 0.65rem;
  background: #2d1718;
  color: #ffe4df;
}

#blazor-error-ui a {
  color: var(--seafoam);
}

#blazor-error-ui .dismiss {
  position: absolute;
  top: 0.45rem;
  right: 0.55rem;
  border: 0;
  background: transparent;
  color: inherit;
  font-size: 1.5rem;
}

.blazor-error-boundary {
  padding: 1rem;
  border: 1px solid #dc7e73;
  border-radius: 0.65rem;
  background: #2d1718;
  color: #ffe4df;
}

.blazor-error-boundary::after {
  content: "The learning lab encountered an error.";
}

.text-link {
  color: var(--seafoam);
  font-size: 0.8rem;
  font-weight: 700;
  text-decoration: none;
}

.compact-lab .foundation-visual {
  position: relative;
  overflow: hidden;
  min-height: 25rem;
  background:
    linear-gradient(rgba(142, 177, 192, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(142, 177, 192, 0.08) 1px, transparent 1px);
  background-size: 3rem 3rem;
}

.foundation-visual > span {
  position: absolute;
  top: 10%;
  bottom: 10%;
  left: 50%;
  width: 2px;
  border-radius: 2px;
  background: var(--cyan);
  box-shadow: 0 0 1.4rem rgba(28, 200, 229, 0.65);
  transition: left 120ms ease-out;
}

.foundation-visual > span:nth-child(1) { left: 8%; }
.foundation-visual > span:nth-child(2) { left: 16%; }
.foundation-visual > span:nth-child(3) { left: 24%; }
.foundation-visual > span:nth-child(4) { left: 32%; }
.foundation-visual > span:nth-child(5) { left: 40%; }
.foundation-visual > span:nth-child(6) { left: 48%; }
.foundation-visual > span:nth-child(7) { left: 56%; }
.foundation-visual > span:nth-child(8) { left: 64%; }
.foundation-visual > span:nth-child(9) { left: 72%; }
.foundation-visual > span:nth-child(10) { left: 80%; }
.foundation-visual > span:nth-child(11) { left: 88%; }
.foundation-visual > span:nth-child(12) { left: 92%; }

.foundation-axis {
  position: absolute;
  top: 50%;
  right: 5%;
  left: 5%;
  height: 1px;
  background: var(--line);
}

.workspace-intro {
  max-width: 62rem;
  padding-top: 5.5rem !important;
  border-top: 0 !important;
}

.workspace-intro > p:last-child,
.research-lede {
  max-width: 45rem;
  color: var(--slate);
  font-size: 1.06rem;
}

.workspace-loading {
  min-height: 20rem;
  color: var(--slate);
}

.passive-workspace {
  padding-top: 0 !important;
  border-top: 0 !important;
}

.workspace-toolbar {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  background: rgba(12, 46, 66, 0.72);
}

.mode-switch {
  display: flex;
  gap: 0.35rem;
}

.mode-button {
  padding: 0.55rem 0.8rem;
  border: 1px solid transparent;
  border-radius: 0.45rem;
  background: transparent;
  color: var(--slate);
  font-size: 0.75rem;
  font-weight: 700;
}

.mode-button.active {
  border-color: rgba(28, 200, 229, 0.35);
  background: rgba(28, 200, 229, 0.1);
  color: var(--seafoam);
}

.toolbar-readouts {
  display: flex;
  gap: 1.2rem;
  color: var(--slate);
  font-family: "JetBrains Mono", "IBM Plex Mono", Consolas, monospace;
  font-size: 0.63rem;
  letter-spacing: 0.08em;
}

.toolbar-readouts strong {
  color: var(--seafoam);
}

.workspace-grid {
  display: grid;
  grid-template-columns: 15.5rem minmax(0, 1fr) 17rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: rgba(7, 31, 47, 0.94);
}

.control-rail,
.evidence-rail {
  display: flex;
  gap: 0.75rem;
  flex-direction: column;
  padding: 1.25rem;
  background: rgba(255, 255, 255, 0.012);
}

.control-rail {
  border-right: 1px solid var(--line);
}

.evidence-rail {
  border-left: 1px solid var(--line);
}

.control-rail label,
.evidence-rail > label:not(.evidence-option) {
  display: flex;
  justify-content: space-between;
  margin-top: 0.4rem;
  color: var(--slate);
  font-size: 0.69rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.control-rail output {
  color: var(--seafoam);
  font-family: "JetBrains Mono", "IBM Plex Mono", Consolas, monospace;
  letter-spacing: 0;
}

.control-rail select,
.evidence-rail select,
.evidence-rail textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  outline: none;
  background: var(--abyss);
  color: var(--mist);
}

.control-rail select,
.evidence-rail select {
  min-height: 2.6rem;
  padding: 0.5rem;
}

.evidence-rail textarea {
  padding: 0.7rem;
  resize: vertical;
}

.control-rail select:focus,
.evidence-rail select:focus,
.evidence-rail textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 2px rgba(28, 200, 229, 0.15);
}

.control-description,
.audio-note {
  color: var(--slate);
  font-size: 0.72rem;
}

.fidelity-badge {
  align-self: flex-start;
  padding: 0.25rem 0.4rem;
  border: 1px solid rgba(110, 231, 200, 0.3);
  border-radius: 0.3rem;
  color: var(--seafoam);
  font-family: "JetBrains Mono", "IBM Plex Mono", Consolas, monospace;
  font-size: 0.58rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.audio-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem;
  margin-top: 0.6rem;
}

.audio-controls .button {
  min-height: 2.5rem;
  padding: 0.45rem;
}

.randomize-button {
  padding: 0.6rem;
  border: 1px dashed var(--line);
  border-radius: 0.45rem;
  background: transparent;
  color: var(--slate);
  font-size: 0.7rem;
}

.randomize-button:hover {
  border-color: var(--seafoam);
  color: var(--seafoam);
}

.display-stack {
  display: grid;
  min-width: 0;
  padding: 0.8rem;
  gap: 0.8rem;
}

.instrument-panel {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  background: #061a2b;
}

.instrument-panel header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 3.5rem;
  padding: 0.65rem 0.8rem;
  border-bottom: 1px solid var(--line);
}

.instrument-panel header > div {
  display: flex;
  gap: 0.7rem;
  align-items: baseline;
}

.instrument-panel header h2 {
  font-size: 0.83rem;
  letter-spacing: 0;
}

.instrument-panel header > span,
.instrument-code,
.instrument-scale {
  color: var(--slate);
  font-family: "JetBrains Mono", "IBM Plex Mono", Consolas, monospace;
  font-size: 0.57rem;
  letter-spacing: 0.06em;
}

.instrument-code {
  color: var(--cyan);
}

.instrument-panel canvas {
  display: block;
  width: 100%;
}

.waterfall-canvas {
  height: 25rem;
}

.spectrum-canvas,
.waveform-canvas {
  height: 12rem;
}

.instrument-scale {
  display: flex;
  justify-content: space-between;
  padding: 0.45rem 0.65rem;
  border-top: 1px solid var(--line);
}

.secondary-displays {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
}

.evidence-rail h2 {
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.evidence-option {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.55rem;
  align-items: start;
  padding: 0.55rem;
  border: 1px solid var(--line);
  border-radius: 0.4rem;
  color: var(--slate);
  font-size: 0.7rem;
}

.evidence-option:has(input:checked) {
  border-color: rgba(110, 231, 200, 0.45);
  background: rgba(110, 231, 200, 0.06);
  color: var(--mist);
}

.evidence-option input {
  margin-top: 0.2rem;
  accent-color: var(--seafoam);
}

.exercise-result {
  padding: 0.8rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  font-size: 0.72rem;
}

.exercise-result.success {
  border-color: rgba(110, 231, 200, 0.45);
  background: rgba(110, 231, 200, 0.08);
}

.exercise-result.warning {
  border-color: rgba(237, 178, 88, 0.45);
  background: rgba(237, 178, 88, 0.08);
}

.exercise-result p,
.exercise-result ul {
  margin-bottom: 0;
  color: var(--slate);
}

.model-disclosure {
  display: grid;
  grid-template-columns: 10rem 1fr;
  gap: 1rem;
  margin-top: 1rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  color: var(--slate);
  font-size: 0.76rem;
}

.model-disclosure strong {
  color: var(--seafoam);
}

.model-disclosure p {
  margin: 0;
}

.research-page {
  padding-top: 5.5rem;
}

.research-lede {
  margin-bottom: 4rem;
}

.fidelity-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.fidelity-grid article {
  min-height: 14rem;
  padding: 1.5rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.fidelity-grid span,
.research-card-meta,
.verification {
  color: var(--seafoam);
  font-family: "JetBrains Mono", "IBM Plex Mono", Consolas, monospace;
  font-size: 0.63rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.fidelity-grid h2 {
  margin: 2.5rem 0 0.8rem;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.fidelity-grid p,
.research-cards p,
.source-list p,
.source-list li {
  color: var(--slate);
  font-size: 0.8rem;
}

.research-section {
  padding-bottom: 0 !important;
}

.research-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.research-cards article,
.source-list article {
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  background: rgba(255, 255, 255, 0.012);
}

.research-card-meta {
  display: flex;
  gap: 0.75rem;
  justify-content: space-between;
}

.source-list {
  display: grid;
  gap: 0.75rem;
}

.source-list article {
  display: grid;
  grid-template-columns: 1.1fr 1fr auto;
  gap: 1.5rem;
  align-items: center;
}

.source-list article > div p {
  margin-bottom: 0;
}

.source-list ul {
  margin: 0;
  padding-left: 1rem;
}

.source-list a {
  color: var(--seafoam);
  font-size: 0.72rem;
  font-weight: 700;
}

.verification.unverified {
  color: #edb258;
}

.verification.rejected {
  color: #dc7e73;
}

.academy-hero,
.academy-topic-hero,
.academy-course-hero {
  padding-top: 5.5rem !important;
  border-top: 0 !important;
}

.academy-lede,
.academy-topic-summary {
  max-width: 48rem;
  color: var(--slate);
  font-size: 1.06rem;
}

.academy-courses {
  padding-top: 2rem !important;
}

.academy-course-grid,
.academy-topic-grid {
  display: grid;
  gap: 1rem;
}

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

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

.academy-course-grid article,
.academy-topic-grid article {
  display: flex;
  min-width: 0;
  min-height: 17rem;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.012);
}

.academy-course-grid article:hover,
.academy-topic-grid article:hover {
  border-color: rgba(110, 231, 200, 0.38);
  background: rgba(110, 231, 200, 0.025);
}

.academy-course-grid h3,
.academy-topic-grid h3 {
  margin: 0.55rem 0 0.8rem;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.academy-course-grid h3 a,
.academy-topic-grid h3 a,
.academy-course-sequence h3 a,
.academy-context-list a {
  color: var(--mist);
  text-decoration: none;
}

.academy-course-grid h3 a:hover,
.academy-topic-grid h3 a:hover,
.academy-course-sequence h3 a:hover,
.academy-context-list a:hover {
  color: var(--seafoam);
}

.academy-course-grid article > p,
.academy-topic-grid article > p,
.academy-course-sequence article > p {
  color: var(--slate);
  font-size: 0.82rem;
}

.academy-course-grid footer,
.academy-topic-grid footer {
  display: flex;
  width: 100%;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  color: var(--slate);
  font-family: "JetBrains Mono", "IBM Plex Mono", Consolas, monospace;
  font-size: 0.63rem;
}

.academy-course-grid footer a,
.academy-topic-grid footer a {
  color: var(--seafoam);
  font-weight: 700;
  text-decoration: none;
}

.academy-card-meta,
.academy-topic-meta {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  color: var(--seafoam);
  font-family: "JetBrains Mono", "IBM Plex Mono", Consolas, monospace;
  font-size: 0.61rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.academy-card-meta {
  justify-content: space-between;
}

.academy-domain {
  margin: 2.2rem 0 0 !important;
  color: var(--cyan) !important;
  font-family: "JetBrains Mono", "IBM Plex Mono", Consolas, monospace;
  font-size: 0.62rem !important;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.academy-library-heading {
  display: flex;
  gap: 2rem;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 2.5rem;
}

.academy-filters {
  display: flex;
  gap: 0.75rem;
  align-items: end;
}

.academy-filters label {
  display: grid;
  gap: 0.4rem;
  color: var(--slate);
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.academy-filters input,
.academy-filters select {
  min-height: 2.8rem;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  outline: none;
  background: var(--abyss);
  color: var(--mist);
}

.academy-filters input {
  width: min(20rem, 42vw);
}

.academy-filters input:focus,
.academy-filters select:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 2px rgba(28, 200, 229, 0.15);
}

.academy-empty {
  padding: 3rem 1rem;
  border: 1px dashed var(--line);
  border-radius: 0.75rem;
  color: var(--slate);
  text-align: center;
}

.academy-tag-row {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin: 0.7rem 0 1rem;
}

.academy-tag-row span {
  padding: 0.25rem 0.42rem;
  border: 1px solid rgba(28, 200, 229, 0.22);
  border-radius: 999px;
  color: var(--slate);
  font-size: 0.59rem;
}

.academy-topic-meta {
  margin-top: 1.5rem;
}

.academy-topic-layout {
  display: grid;
  grid-template-columns: minmax(13rem, 17rem) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  padding: 2.5rem 0 4rem;
  border-top: 1px solid var(--line);
}

.academy-topic-aside {
  display: flex;
  gap: 2rem;
  flex-direction: column;
}

.academy-topic-aside section {
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.academy-topic-aside h2 {
  margin-top: 0.3rem;
  font-size: 1.1rem;
}

.academy-topic-aside ul {
  margin: 0;
  padding-left: 1rem;
  color: var(--slate);
  font-size: 0.77rem;
}

.academy-topic-aside li + li {
  margin-top: 0.6rem;
}

.academy-context-list {
  list-style: none;
  padding-left: 0 !important;
}

.academy-markdown {
  max-width: 50rem;
  color: var(--slate);
  font-size: 0.94rem;
  line-height: 1.75;
}

.academy-markdown h2,
.academy-markdown h3,
.academy-markdown h4 {
  color: var(--mist);
}

.academy-markdown h2 {
  margin: 3.3rem 0 1rem;
  font-size: 1.75rem;
  letter-spacing: -0.04em;
}

.academy-markdown > h2:first-child {
  margin-top: 0;
}

.academy-markdown h3 {
  margin: 2.2rem 0 0.75rem;
  font-size: 1.2rem;
}

.academy-markdown a {
  color: var(--seafoam);
}

.academy-markdown strong {
  color: var(--mist);
}

.academy-markdown code {
  padding: 0.12rem 0.3rem;
  border: 1px solid rgba(28, 200, 229, 0.16);
  border-radius: 0.25rem;
  background: rgba(28, 200, 229, 0.06);
  color: var(--seafoam);
  font-family: "JetBrains Mono", "IBM Plex Mono", Consolas, monospace;
  font-size: 0.82em;
}

.academy-markdown pre {
  overflow-x: auto;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  background: #051722;
}

.academy-markdown pre code {
  padding: 0;
  border: 0;
  background: transparent;
}

.academy-markdown blockquote {
  margin: 1.5rem 0;
  padding: 0.2rem 0 0.2rem 1rem;
  border-left: 3px solid var(--cyan);
  color: var(--mist);
}

.academy-markdown table {
  display: block;
  overflow-x: auto;
  width: 100%;
  border-collapse: collapse;
}

.academy-markdown th,
.academy-markdown td {
  padding: 0.65rem;
  border: 1px solid var(--line);
  text-align: left;
}

.academy-body-loading {
  color: var(--slate);
}

.academy-sources {
  display: grid;
  grid-template-columns: minmax(14rem, 0.75fr) minmax(0, 1.25fr);
  gap: 3rem;
  padding-bottom: 1rem !important;
}

.academy-sources > div p:last-child {
  color: var(--slate);
  font-size: 0.78rem;
}

.academy-sources ul {
  display: grid;
  gap: 0.65rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.academy-sources li {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  color: var(--slate);
  font-size: 0.72rem;
}

.academy-sources li a {
  color: var(--seafoam);
  text-align: right;
}

.academy-course-note {
  display: grid;
  grid-template-columns: minmax(13rem, 0.7fr) minmax(0, 1.3fr);
  gap: 3rem;
  align-items: start;
  padding-top: 2.5rem !important;
}

.academy-course-note p:last-child {
  color: var(--slate);
  line-height: 1.7;
}

.academy-course-sequence ol {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.academy-course-sequence li {
  display: grid;
  grid-template-columns: 4rem minmax(0, 1fr);
  gap: 1rem;
}

.academy-sequence-number {
  padding-top: 1.2rem;
  color: var(--cyan);
  font-family: "JetBrains Mono", "IBM Plex Mono", Consolas, monospace;
  font-size: 0.72rem;
}

.academy-course-sequence article {
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: 0.65rem;
}

.academy-course-sequence h3 {
  margin: 0.65rem 0;
}

.signal-chain-explorer {
  margin-bottom: 3.5rem;
  padding: 1.25rem;
  border: 1px solid rgba(28, 200, 229, 0.3);
  border-radius: 0.8rem;
  background: rgba(12, 46, 66, 0.5);
}

.signal-chain-explorer > header {
  display: flex;
  gap: 1rem;
  align-items: start;
  justify-content: space-between;
}

.signal-chain-explorer h2 {
  margin: 0.25rem 0 0;
  font-size: 1.35rem;
}

.signal-chain-mode {
  display: flex;
  gap: 0.3rem;
  padding: 0.25rem;
  border: 1px solid var(--line);
  border-radius: 0.55rem;
}

.signal-chain-mode button {
  padding: 0.55rem 0.7rem;
  border: 1px solid transparent;
  border-radius: 0.35rem;
  background: transparent;
  color: var(--slate);
  font-size: 0.68rem;
  font-weight: 700;
}

.signal-chain-mode button.active {
  border-color: rgba(110, 231, 200, 0.32);
  background: rgba(110, 231, 200, 0.1);
  color: var(--seafoam);
}

.signal-chain-intro,
.signal-chain-disclosure {
  color: var(--slate);
  font-size: 0.76rem;
}

.signal-chain-stages {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.5rem;
  margin: 1.25rem 0;
  padding: 0;
  list-style: none;
}

.signal-chain-stages li {
  min-height: 8.5rem;
  padding: 0.7rem;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
}

.signal-chain-stages li > span {
  color: var(--cyan);
  font-family: "JetBrains Mono", "IBM Plex Mono", Consolas, monospace;
  font-size: 0.58rem;
}

.signal-chain-stages li div {
  display: grid;
  gap: 0.45rem;
  margin-top: 1rem;
}

.signal-chain-stages strong {
  color: var(--mist);
  font-size: 0.72rem;
}

.signal-chain-stages small {
  color: var(--slate);
  font-size: 0.62rem;
  line-height: 1.45;
}

.signal-chain-stages .bypassed {
  border-style: dashed;
  opacity: 0.42;
}

.signal-chain-disclosure {
  margin-bottom: 0;
  padding-top: 0.8rem;
  border-top: 1px solid var(--line);
}

.not-found {
  min-height: 65vh;
  padding-top: 8rem !important;
  border-top: 0 !important;
}

@media (max-width: 1080px) {
  .academy-topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .workspace-grid {
    grid-template-columns: 14rem minmax(0, 1fr);
  }

  .evidence-rail {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .evidence-rail > div,
  .evidence-rail > textarea,
  .evidence-rail > select,
  .evidence-rail > button,
  .exercise-result {
    grid-column: 1 / -1;
  }
}

@media (max-width: 780px) {
  .academy-course-grid,
  .academy-topic-grid,
  .academy-topic-layout,
  .academy-sources,
  .academy-course-note {
    grid-template-columns: 1fr;
  }

  .academy-library-heading,
  .signal-chain-explorer > header {
    align-items: stretch;
    flex-direction: column;
  }

  .academy-filters {
    align-items: stretch;
  }

  .academy-filters input {
    width: 100%;
  }

  .workspace-toolbar,
  .toolbar-readouts {
    align-items: stretch;
    flex-direction: column;
  }

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

  .control-rail {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .secondary-displays,
  .fidelity-grid,
  .research-cards,
  .source-list article {
    grid-template-columns: 1fr;
  }

  .evidence-rail {
    grid-column: auto;
  }

  .model-disclosure {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .academy-filters,
  .academy-sources li {
    align-items: stretch;
    flex-direction: column;
  }

  .academy-sources li a {
    text-align: left;
  }

  .signal-chain-stages {
    grid-template-columns: 1fr;
  }

  .signal-chain-stages li {
    min-height: auto;
  }

  .waterfall-canvas {
    height: 19rem;
  }

  .toolbar-readouts {
    gap: 0.4rem;
  }

  .evidence-rail {
    grid-template-columns: 1fr;
  }

  .evidence-rail > * {
    grid-column: auto !important;
  }

  footer {
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .foundation-visual > span {
    transition: none;
  }
}