:root {
  --paper: #eaf2f0;
  --surface: #f7faf8;
  --ink: #102b2a;
  --muted: #526b68;
  --line: #a8bfbb;
  --blue: #2c5dff;
  --blue-soft: #dce7ff;
  --yellow: #e6f049;
  --orange: #ff8a4c;
  --white: #fff;
  --display: "Newsreader", Georgia, serif;
  --body: "Instrument Sans", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(rgba(16, 43, 42, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 43, 42, 0.045) 1px, transparent 1px),
    var(--paper);
  background-size: 28px 28px;
  font: 17px/1.55 var(--body);
}

a {
  color: inherit;
}

button,
input {
  font: inherit;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  color: var(--white);
  background: var(--ink);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.lab-header,
.lab-footer,
.lab-main {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.lab-header {
  display: flex;
  min-height: 82px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 2px solid var(--ink);
}

.wordmark {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.wordmark-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: var(--white);
  background: var(--ink);
  font: 600 12px/1 var(--mono);
}

.lab-nav {
  display: flex;
  gap: 22px;
  font: 600 0.72rem/1 var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.lab-nav a {
  text-underline-offset: 5px;
}

.lab-nav .join-link {
  padding: 10px 12px;
  color: var(--white);
  background: var(--ink);
  border: 1px solid var(--ink);
  text-decoration: none;
}

.hero-join-link {
  display: inline-block;
  margin-top: 26px;
  color: var(--blue);
  font: 600 0.78rem/1.35 var(--mono);
  text-underline-offset: 5px;
  text-transform: uppercase;
}

.hero-join-link + .hero-join-link {
  margin-left: 22px;
}

.lab-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(330px, 0.65fr);
  gap: clamp(42px, 8vw, 110px);
  align-items: center;
  min-height: 620px;
  padding: 78px 0 86px;
}

.eyebrow,
.instrument-code,
.field-label,
.result-label,
.tool-status,
.chip {
  font: 600 0.74rem/1.25 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--blue);
}

h1,
h2,
h3,
p {
  text-wrap: pretty;
}

h1,
h2 {
  margin: 0;
  font-family: var(--display);
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: -0.045em;
}

h1 {
  font-size: clamp(3.6rem, 7vw, 6.8rem);
}

h2 {
  font-size: clamp(2.6rem, 5vw, 4.8rem);
}

.hero-deck {
  max-width: 680px;
  margin: 28px 0 0;
  color: #294744;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}

.lab-index {
  display: grid;
  gap: 6px;
  padding: 22px;
  color: var(--white);
  background: var(--ink);
  border: 2px solid var(--ink);
  box-shadow: 9px 9px 0 var(--blue);
}

.lab-index span {
  color: #aec4c0;
  font: 0.7rem/1.3 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lab-index strong {
  color: var(--yellow);
  font: 600 clamp(4rem, 9vw, 7rem)/0.9 var(--mono);
  letter-spacing: -0.08em;
}

.lab-index p {
  margin: 18px 0 0;
  color: #c1d2cf;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding: 0 0 112px;
}

.tool-card {
  display: grid;
  gap: 20px;
  min-height: 390px;
  padding: 28px;
  background: var(--surface);
  border: 2px solid var(--ink);
  box-shadow: 8px 8px 0 var(--ink);
  text-decoration: none;
  transition: transform 150ms ease, box-shadow 150ms ease;
}

.tool-card:nth-child(2) {
  background: var(--yellow);
}

.tool-card:nth-child(3) {
  background: var(--blue-soft);
}

.tool-card:nth-child(4) {
  background: #ffd8c2;
}

.tool-card:nth-child(5) {
  background: #d8f1df;
}

.tool-card:nth-child(6) {
  background: #eadfff;
}

.tool-card:nth-child(7) {
  background: #ffe7ad;
}

.tool-card:nth-child(8) {
  background: #c6e3dd;
}

.tool-card:hover {
  box-shadow: 3px 3px 0 var(--ink);
  transform: translate(5px, 5px);
}

.tool-card:focus-visible,
.action-button:focus-visible,
.secondary-button:focus-visible,
.choice-grid label:has(input:focus-visible),
.diagnostic-card:has(input:focus-visible) {
  outline: 4px solid var(--orange);
  outline-offset: 3px;
}

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

.tool-card h2 {
  align-self: end;
  font-size: clamp(2.35rem, 4vw, 3.9rem);
}

.tool-card p {
  margin: 0;
  color: var(--muted);
}

.tool-card b {
  align-self: end;
  font: 600 0.82rem/1 var(--mono);
  text-transform: uppercase;
}

.principle-strip {
  display: grid;
  grid-template-columns: 0.7fr repeat(3, 1fr);
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}

.principle-strip > * {
  padding: 24px;
  border-right: 1px solid var(--line);
}

.principle-strip > *:last-child {
  border-right: 0;
}

.principle-strip .eyebrow,
.principle-strip p {
  margin: 0;
}

.principle-strip p {
  color: var(--muted);
  font-size: 0.93rem;
}

.instrument-shell {
  padding: 86px 0 112px;
  border-top: 2px solid var(--ink);
}

.instrument-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.6fr);
  gap: 34px 80px;
  align-items: end;
  margin-bottom: 48px;
}

.instrument-intro p:last-child {
  margin: 0;
  color: var(--muted);
}

.calculator-layout,
.diagnostic-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.65fr);
  gap: 28px;
  align-items: start;
}

.input-panel,
.diagnostic-list {
  display: grid;
  gap: 14px;
}

.input-card {
  display: grid;
  grid-template-columns: 1fr minmax(120px, 180px);
  gap: 20px;
  align-items: center;
  padding: 22px;
  background: var(--surface);
  border: 2px solid var(--ink);
}

.field-copy {
  display: grid;
  gap: 5px;
}

.field-copy small {
  color: var(--muted);
}

.number-field {
  display: flex;
  align-items: stretch;
  background: var(--white);
  border: 2px solid var(--ink);
}

.number-field span {
  display: grid;
  min-width: 42px;
  place-items: center;
  color: var(--muted);
  background: var(--paper);
  border-right: 1px solid var(--ink);
  font: 0.8rem/1 var(--mono);
}

.number-field.suffix span {
  order: 2;
  border-right: 0;
  border-left: 1px solid var(--ink);
}

.number-field input {
  width: 100%;
  min-width: 0;
  padding: 12px;
  color: var(--ink);
  background: transparent;
  border: 0;
  font: 600 1rem/1 var(--mono);
}

.number-field input:focus {
  outline: 3px solid var(--yellow);
  outline-offset: 2px;
}

.choice-card {
  margin: 0;
  padding: 22px;
  background: var(--surface);
  border: 2px solid var(--ink);
}

.choice-card legend {
  padding: 0 8px;
  font-weight: 700;
}

.choice-card > p {
  margin: 0 0 18px;
  color: var(--muted);
}

.choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.choice-grid label {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px;
  background: var(--white);
  border: 1px solid var(--ink);
  cursor: pointer;
}

.choice-grid input {
  width: 20px;
  height: 20px;
  margin: 2px 0 0;
  accent-color: var(--blue);
}

.choice-grid span,
.choice-grid strong,
.choice-grid small {
  display: block;
}

.choice-grid small {
  margin-top: 4px;
  color: var(--muted);
}

.text-field,
.select-field {
  display: block;
  background: var(--white);
  border: 2px solid var(--ink);
}

.text-field input,
.select-field select {
  width: 100%;
  min-width: 0;
  padding: 12px;
  color: var(--ink);
  background: transparent;
  border: 0;
  font: 600 0.88rem/1.2 var(--mono);
}

.text-field input:focus,
.select-field select:focus {
  outline: 3px solid var(--yellow);
  outline-offset: 2px;
}

.result-console {
  position: sticky;
  top: 24px;
  padding: 26px;
  color: var(--white);
  background: var(--ink);
  border: 2px solid var(--ink);
  box-shadow: 8px 8px 0 var(--blue);
}

.config-result-title {
  margin: 26px 0 12px;
  color: var(--yellow);
  font: 600 0.82rem/1.3 var(--mono);
}

.config-output {
  min-height: 150px;
  margin: 0 0 20px;
  padding: 18px;
  overflow-x: auto;
  color: #eaf6f2;
  background: #0d2421;
  border: 1px solid #5a7370;
  white-space: pre-wrap;
}

.config-output code {
  font: 500 0.8rem/1.7 var(--mono);
}

.config-summary {
  margin-top: 0;
}

.tool-status {
  display: flex;
  justify-content: space-between;
  padding-bottom: 14px;
  color: #a9c0bc;
  border-bottom: 1px solid #49625f;
}

.tool-status b {
  color: var(--yellow);
}

.primary-result {
  margin: 34px 0 8px;
  color: var(--yellow);
  font: 600 clamp(3.6rem, 7vw, 6rem)/0.9 var(--mono);
  letter-spacing: -0.08em;
}

.primary-result small {
  color: #7e9692;
  font-size: 0.23em;
  letter-spacing: 0;
}

.result-label {
  margin: 0 0 28px;
  color: #a9c0bc;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid #49625f;
}

.result-grid div {
  padding: 17px 10px 17px 0;
  border-bottom: 1px solid #49625f;
}

.result-grid span,
.result-grid strong {
  display: block;
}

.result-grid span {
  color: #8fa8a4;
  font: 0.68rem/1.3 var(--mono);
  text-transform: uppercase;
}

.result-grid strong {
  margin-top: 5px;
  font: 600 1.05rem/1.2 var(--mono);
}

.result-note {
  min-height: 68px;
  color: #c4d5d2;
  font-size: 0.9rem;
}

.action-button,
.secondary-button {
  width: 100%;
  margin-top: 12px;
  padding: 14px 16px;
  border: 2px solid var(--yellow);
  cursor: pointer;
  font-weight: 700;
}

.action-button {
  color: var(--ink);
  background: var(--yellow);
}

.action-button:disabled {
  color: #78908d;
  background: transparent;
  border-color: #5a7370;
  cursor: not-allowed;
}

.secondary-button {
  color: var(--white);
  background: transparent;
  border-color: #64807c;
}

.share-status {
  min-height: 18px;
  margin: 10px 0 0;
  color: #9cb3af;
  font: 0.7rem/1.4 var(--mono);
}

.result-join {
  display: grid;
  gap: 8px;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid #49625f;
}

.result-join span {
  color: #9cb3af;
  font: 0.68rem/1.35 var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.result-join a {
  color: var(--yellow);
  font-weight: 700;
  text-underline-offset: 5px;
}

.scenario-section,
.method-section {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(420px, 1fr);
  gap: 46px 80px;
  align-items: start;
  padding: 96px 0;
  border-top: 2px solid var(--ink);
}

.scenario-section > div:first-child > p:last-child {
  max-width: 620px;
  color: var(--muted);
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.scenario-card {
  display: grid;
  gap: 12px;
  min-height: 180px;
  align-content: end;
  padding: 20px;
  background: var(--surface);
  border: 2px solid var(--ink);
}

.scenario-card.is-base {
  background: var(--yellow);
  box-shadow: 6px 6px 0 var(--ink);
}

.scenario-card span,
.scenario-card small {
  color: var(--muted);
  font: 600 0.68rem/1.35 var(--mono);
  text-transform: uppercase;
}

.scenario-card strong {
  font: 600 clamp(1.5rem, 3vw, 2.3rem)/1 var(--mono);
  letter-spacing: -0.06em;
}

.method-copy {
  columns: 2;
  column-gap: 34px;
}

.method-copy p {
  break-inside: avoid;
  margin: 0 0 24px;
  color: var(--muted);
}

.latency-stage-section {
  padding: 96px 0;
  border-top: 2px solid var(--ink);
}

.latency-stage-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.55fr);
  gap: 42px 80px;
  align-items: end;
  margin-bottom: 42px;
}

.latency-stage-heading > p {
  margin: 0;
  color: var(--muted);
}

.latency-tape-stack {
  display: grid;
  gap: 18px;
  min-width: 0;
}

.latency-tape-card {
  min-width: 0;
  padding: 22px;
  background: var(--surface);
  border: 2px solid var(--ink);
  box-shadow: 7px 7px 0 var(--ink);
}

.latency-tape-card.is-sequential {
  background: var(--blue-soft);
}

.latency-tape-label {
  display: flex;
  gap: 18px;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 14px;
}

.latency-tape-label strong {
  font-size: 1.05rem;
}

.latency-tape-label span {
  color: var(--muted);
  font: 600 0.68rem/1.3 var(--mono);
  text-transform: uppercase;
}

.latency-tape {
  display: flex;
  min-width: 0;
  overflow-x: auto;
  border: 2px solid var(--ink);
  scrollbar-color: var(--ink) var(--paper);
}

.latency-segment {
  display: grid;
  flex: max(1, var(--stage-ms)) 0 76px;
  min-width: 76px;
  min-height: 96px;
  align-content: space-between;
  padding: 12px;
  color: var(--ink);
  background: var(--yellow);
  border-right: 1px solid var(--ink);
}

.latency-segment:last-child {
  border-right: 0;
}

.latency-segment[data-stage="transcript"] {
  background: #c6e3dd;
}

.latency-segment[data-stage="branch"],
.latency-segment[data-stage="slow"] {
  color: var(--white);
  background: var(--blue);
}

.latency-segment[data-stage="context"] {
  background: #eadfff;
}

.latency-segment[data-stage="tts"] {
  background: #ffd8c2;
}

.latency-segment[data-stage="playout"] {
  background: var(--surface);
}

.latency-segment span {
  font: 600 0.65rem/1.2 var(--mono);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.latency-segment b {
  font: 600 0.78rem/1.2 var(--mono);
}

.latency-scroll-hint {
  display: none;
}

.guide-section {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(420px, 1fr);
  gap: 46px 80px;
  align-items: start;
  padding: 96px 0;
  border-top: 2px solid var(--ink);
}

.guide-intro > p:not(.eyebrow) {
  max-width: 620px;
  color: var(--muted);
}

.guide-link {
  display: inline-block;
  margin-top: 18px;
  color: var(--blue);
  font: 700 0.78rem/1.45 var(--mono);
  text-underline-offset: 5px;
  text-transform: uppercase;
}

.faq-list {
  display: grid;
  border-top: 2px solid var(--ink);
}

.faq-item {
  display: grid;
  grid-template-columns: minmax(180px, 0.7fr) 1fr;
  gap: 24px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}

.faq-item h3,
.faq-item p {
  margin: 0;
}

.faq-item h3 {
  font: 700 1.15rem/1.2 var(--body);
  letter-spacing: -0.02em;
}

.faq-item p {
  color: var(--muted);
}

.starter-section {
  padding: 96px 0 112px;
  border-top: 2px solid var(--ink);
}

.starter-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.45fr);
  gap: 40px 80px;
  align-items: end;
  margin-bottom: 48px;
}

.starter-progress {
  display: grid;
  gap: 10px;
  font: 600 0.75rem/1 var(--mono);
  text-transform: uppercase;
}

.progress-track {
  height: 14px;
  background: var(--surface);
  border: 2px solid var(--ink);
}

.progress-track i {
  display: block;
  width: 0;
  height: 100%;
  background: var(--blue);
  transition: width 180ms ease;
}

.starter-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.starter-card {
  display: grid;
  grid-template-rows: auto auto 1fr auto auto;
  gap: 18px;
  min-height: 390px;
  padding: 28px;
  background: var(--surface);
  border: 2px solid var(--ink);
  box-shadow: 7px 7px 0 var(--ink);
}

.starter-card:nth-child(2) {
  background: var(--yellow);
}

.starter-card:nth-child(3) {
  background: var(--blue-soft);
}

.starter-card:nth-child(4) {
  background: #ffd8c2;
}

.starter-card h3 {
  margin: 0;
  font: 700 clamp(2.1rem, 4vw, 3.5rem)/0.98 var(--display);
  letter-spacing: -0.04em;
}

.starter-card p {
  margin: 0;
  color: var(--muted);
}

.starter-card > a {
  font: 700 0.8rem/1.3 var(--mono);
  text-transform: uppercase;
  text-underline-offset: 5px;
}

.starter-card label {
  display: flex;
  gap: 10px;
  align-items: center;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  cursor: pointer;
  font: 600 0.72rem/1.2 var(--mono);
  text-transform: uppercase;
}

.starter-card input {
  width: 20px;
  height: 20px;
  accent-color: var(--blue);
}

.activation-strip {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.65fr);
  gap: 48px 90px;
  align-items: center;
  padding: 96px 0;
  border-top: 2px solid var(--ink);
}

.activation-strip > div:first-child > p:last-child {
  color: var(--muted);
}

.starter-actions > p:last-child {
  color: #c4d5d2;
}

.starter-actions {
  padding: 26px;
  color: var(--white);
  background: var(--ink);
  box-shadow: 8px 8px 0 var(--blue);
}

.starter-actions .share-status {
  min-height: 20px;
}

.starter-join-card {
  display: grid;
  gap: 16px;
  padding: 30px;
  color: var(--white);
  background: var(--ink);
  box-shadow: 8px 8px 0 var(--blue);
}

.starter-join-card span,
.starter-join-card small {
  color: #a9c0bc;
  font: 0.72rem/1.45 var(--mono);
  text-transform: uppercase;
}

.starter-join-card a {
  color: var(--yellow);
  font: 700 clamp(1.3rem, 3vw, 2rem)/1.15 var(--body);
  text-underline-offset: 6px;
}

.diagnostic-card {
  position: relative;
  display: grid;
  grid-template-columns: 48px 1fr 28px;
  gap: 15px;
  align-items: center;
  min-height: 104px;
  padding: 18px;
  background: var(--surface);
  border: 2px solid var(--ink);
  cursor: pointer;
  transition: transform 150ms ease, background-color 150ms ease;
}

.diagnostic-card:hover {
  transform: translateX(4px);
}

.diagnostic-card:has(input:checked) {
  background: var(--yellow);
}

.diagnostic-card input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.diagnostic-index {
  align-self: start;
  padding-top: 4px;
  color: var(--blue);
  font: 600 0.76rem/1 var(--mono);
}

.diagnostic-copy {
  display: grid;
  gap: 4px;
}

.diagnostic-copy strong {
  font-size: 1rem;
}

.diagnostic-copy span {
  color: var(--muted);
  font-size: 0.88rem;
}

.diagnostic-indicator {
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  background: var(--white);
  border: 2px solid var(--ink);
}

.diagnostic-card:has(input:checked) .diagnostic-indicator::after {
  width: 10px;
  height: 10px;
  background: var(--blue);
  content: "";
}

.subscribe-block {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 0.7fr);
  gap: 70px;
  align-items: center;
  padding: 100px 0;
  border-top: 2px solid var(--ink);
}

.subscribe-block h2 {
  font-size: clamp(2.8rem, 5vw, 5rem);
}

.subscribe-block p:not(.eyebrow) {
  max-width: 620px;
  color: var(--muted);
}

.subscribe-form-shell {
  min-height: 350px;
}

.lab-footer {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  padding: 34px 0 48px;
  border-top: 2px solid var(--ink);
  font: 0.75rem/1.4 var(--mono);
}

.lab-footer p {
  margin: 0;
}

.footer-links {
  display: flex;
  gap: 22px;
}

@media (max-width: 900px) {
  .lab-hero,
  .tool-grid,
  .instrument-intro,
  .calculator-layout,
  .diagnostic-layout,
  .scenario-section,
  .method-section,
  .latency-stage-heading,
  .guide-section,
  .starter-heading,
  .activation-strip,
  .subscribe-block {
    grid-template-columns: 1fr;
  }

  .tool-grid {
    max-width: 680px;
    margin-inline: auto;
  }

  .result-console {
    position: static;
  }

  .method-copy {
    columns: 1;
  }

  .starter-grid {
    grid-template-columns: 1fr;
    max-width: 760px;
    margin-inline: auto;
  }

  .principle-strip {
    grid-template-columns: 1fr 1fr;
  }

  .principle-strip > *:nth-child(2) {
    border-right: 0;
  }

  .principle-strip > *:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 620px) {
  body {
    font-size: 16px;
  }

  .lab-header,
  .lab-footer,
  .lab-main {
    width: min(100% - 28px, 1180px);
  }

  .lab-header {
    min-height: 68px;
  }

  .lab-nav .briefings-link {
    display: none;
  }

  .lab-hero {
    gap: 48px;
    min-height: 0;
    padding: 62px 0 74px;
  }

  .hero-join-link + .hero-join-link {
    display: block;
    margin-top: 14px;
    margin-left: 0;
  }

  h1 {
    font-size: clamp(3.1rem, 15vw, 4.8rem);
  }

  .tool-grid,
  .instrument-shell,
  .scenario-section,
  .method-section,
  .latency-stage-section,
  .guide-section,
  .starter-section,
  .activation-strip,
  .subscribe-block {
    padding-top: 76px;
    padding-bottom: 76px;
  }

  .tool-card {
    min-height: 310px;
  }

  .input-card {
    grid-template-columns: 1fr;
  }

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

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

  .faq-item {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .latency-tape-label {
    display: grid;
    gap: 4px;
  }

  .latency-tape-card {
    padding: 16px;
  }

  .latency-scroll-hint {
    display: block;
    margin: 10px 0 0;
    color: var(--muted);
    font: 600 0.65rem/1.3 var(--mono);
    text-transform: uppercase;
  }

  .scenario-card {
    min-height: 140px;
  }

  .starter-card {
    min-height: 340px;
    padding: 22px;
  }

  .diagnostic-card {
    grid-template-columns: 34px 1fr 24px;
    gap: 10px;
    min-height: 118px;
    padding: 15px 13px;
  }

  .principle-strip {
    grid-template-columns: 1fr;
  }

  .principle-strip > * {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .lab-footer,
  .footer-links {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}