@font-face {
  font-family: Manrope;
  src: url("fonts/manrope-latin.woff2") format("woff2");
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: Newsreader;
  src: url("fonts/newsreader-italic-latin.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
:root {
  --ink: #101f31;
  --muted: #5b6875;
  --blue: #007dad;
  --cyan: #37b9e8;
  --pale: #eff6f9;
  --line: #d9e2e8;
  --sans: Manrope, Arial, sans-serif;
  --serif: Newsreader, Georgia, serif;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 112px;
}
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font: 16px/1.7 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
a,
input,
summary {
  -webkit-tap-highlight-color: transparent;
}
button {
  font: inherit;
  cursor: pointer;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
h1,
h2,
h3,
p,
figure {
  margin: 0;
}
h1,
h2,
h3 {
  line-height: 1.15;
  letter-spacing: -0.045em;
  font-weight: 650;
}
h2 {
  font-size: clamp(2rem, 3.3vw, 3rem);
}
h2 em {
  font-family: var(--serif);
  color: var(--blue);
  font-weight: 400;
}
h3 {
  font-size: 1.2rem;
}
a:hover {
  color: var(--blue);
}
a:focus-visible,
button:focus-visible,
summary:focus-visible,
audio:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 5px;
}
::selection {
  background: #b7e6f8;
}
[hidden] {
  display: none !important;
}
.wrap {
  width: min(1160px, calc(100% - 80px));
  margin-inline: auto;
}
.section {
  padding-block: 88px;
}
.eyebrow {
  font-size: 0.75rem;
  font-weight: 750;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  line-height: 1.5;
}
.square {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--blue);
  margin: 0 8px 2px 0;
}
.skip-link {
  position: fixed;
  top: -100px;
  left: 20px;
  background: var(--ink);
  color: white;
  padding: 12px 20px;
  z-index: 100;
}
.skip-link:focus {
  top: 12px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  min-height: 83px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}
.institutions {
  display: flex;
  gap: 23px;
  align-items: center;
}
.institutions img {
  width: 126px;
  height: 42px;
  object-fit: contain;
}
.institutions .tu-logo {
  width: 94px;
  height: 40px;
}
.brand-rule {
  height: 33px;
  width: 1px;
  background: var(--line);
}
nav {
  display: flex;
  gap: 30px;
  font-size: 0.875rem;
  font-weight: 650;
}
nav a {
  padding-block: 12px;
}
.hero {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 72px;
  padding-top: 56px;
  padding-bottom: 58px;
  align-items: center;
}
.hero .eyebrow {
  margin-bottom: 17px;
}
h1 {
  font-size: clamp(3rem, 5.9vw, 4.8rem);
  font-weight: 800;
  letter-spacing: -0.065em;
}
h1 > span:first-child {
  color: var(--blue);
}
.paper-subtitle {
  display: block;
  font-family: var(--serif);
  font-weight: 400;
  font-style: italic;
  font-size: clamp(1.65rem, 2.55vw, 2.2rem);
  line-height: 1.16;
  letter-spacing: -0.035em;
  margin-top: 14px;
}
.hero-intro {
  max-width: 36rem;
  margin-top: 18px;
  color: var(--ink);
  font-size: 1.05rem;
  line-height: 1.65;
}
.hero-intro strong {
  font-weight: 750;
}
.authors {
  font-size: 1rem;
  font-weight: 650;
  margin-top: 24px;
}
.authors a {
  border-bottom: 1px solid var(--line);
}
.authors sup {
  font-size: 0.7em;
}
.affiliation {
  font-size: 0.875rem;
  color: var(--muted);
  margin-top: 4px;
}
.affiliation span {
  font-size: 0.75rem;
}
.hero-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 26px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 11px;
  border: 1px solid var(--line);
  padding: 11px 16px;
  border-radius: 3px;
  font-size: 0.875rem;
  font-weight: 700;
  line-height: 1.5;
  white-space: nowrap;
}
.button:hover {
  background: var(--pale);
}
.button-primary {
  background: var(--ink);
  color: white;
  border-color: var(--ink);
}
.button-primary:hover {
  color: white;
  background: var(--blue);
  border-color: var(--blue);
}
.button svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.listen-link {
  font-size: 0.875rem;
  font-weight: 650;
  white-space: nowrap;
  padding: 10px 0;
}
.listen-link span {
  margin-left: 7px;
}
.first-listen {
  background: var(--ink);
  color: white;
  padding: 29px 30px 24px;
  border-radius: 5px;
  box-shadow: 0 15px 40px #101f3110;
}
.player-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.first-listen .eyebrow {
  color: #a8c8d9;
  margin: 0;
}
.clip-length {
  color: #a8c8d9;
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
}
.example-quote {
  font-family: var(--serif);
  font-style: italic;
  line-height: 1.35;
  font-size: 1.9rem;
  margin-top: 23px;
}
.waveform {
  margin: 15px 0 13px;
  height: 58px;
  color: #5fc6e8;
}
.waveform svg {
  display: block;
  width: 100%;
  height: 100%;
}
.first-listen audio {
  width: 100%;
  height: 40px;
  display: block;
  border-radius: 25px;
}
.player-caption {
  font-size: 0.75rem;
  color: #a8c8d9;
  margin-top: 12px;
}
.first-listen.is-playing .waveform {
  color: #b3edff;
}
.listen-section {
  padding-block: 53px 52px;
  background: var(--pale);
  border-block: 1px solid #e1edf3;
}
.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 45px;
  margin-bottom: 30px;
}
.section-heading .eyebrow {
  margin-bottom: 12px;
}
.section-heading > p {
  font-size: 0.95rem;
  color: var(--muted);
  max-width: 430px;
  line-height: 1.8;
}
.listening-desk {
  background: white;
  border: 1px solid #d4e2ea;
  border-radius: 5px;
  overflow: hidden;
}
.sample-switcher {
  display: flex;
  gap: 8px;
  padding: 20px 24px;
  background: #f8fbfc;
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
  align-items: center;
}
.sample-switcher > span {
  font-size: 0.875rem;
  margin-right: auto;
  color: var(--muted);
  font-weight: 600;
}
.sample-switcher button {
  padding: 7px 16px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: #fff;
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 650;
}
.sample-switcher button[aria-pressed="true"] {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}
.sample-switcher button:hover:not([aria-pressed="true"]) {
  border-color: var(--blue);
  color: var(--blue);
}
.sample-panel {
  padding: 27px 30px 0;
}
.transcript-label {
  display: flex;
  justify-content: space-between;
  gap: 15px;
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.05em;
  margin-bottom: 10px;
}
.transcript {
  font-size: 1.13rem;
  line-height: 1.7;
  max-width: 990px;
  margin-bottom: 25px;
}
.featured-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 22px;
}
.audio-card {
  min-width: 0;
  border: 1px solid var(--line);
  padding: 18px 20px;
  border-radius: 4px;
  background: white;
}
.audio-card.highlight {
  border-color: #86bfda;
  background: #f4fbff;
}
.audio-card-header {
  display: flex;
  gap: 15px;
  align-items: start;
  justify-content: space-between;
  margin-bottom: 14px;
}
.audio-card h4 {
  font-size: 1rem;
  font-weight: 750;
  margin: 0;
  line-height: 1.4;
  letter-spacing: -0.02em;
}
.audio-card small {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 4px;
}
.audio-card .tag {
  background: #dceff8;
  color: #00698f;
  font-size: 0.75rem;
  white-space: nowrap;
  padding: 2px 8px;
  border-radius: 2px;
  font-weight: 700;
}
.audio-card audio {
  display: block;
  width: 100%;
  height: 38px;
}
.download-audio {
  display: inline-block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.75rem;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.comparisons {
  border-top: 1px solid var(--line);
}
.comparisons summary {
  padding: 19px 0;
  cursor: pointer;
  font-weight: 800;
  font-size: 1rem;
}
.comparisons summary span {
  font-weight: 400;
  color: var(--muted);
  margin-left: 8px;
  font-size: 0.875rem;
}
.model-group {
  padding: 0 0 25px;
}
.model-group > h3 {
  margin: 4px 0 16px;
  padding: 10px 14px;
  border-left: 4px solid var(--blue);
  border-radius: 0 3px 3px 0;
  background: var(--pale);
  font-size: 1.125rem;
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.model-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.model-grid .audio-card {
  padding: 15px;
}
.model-grid .audio-card h4 {
  color: var(--ink);
  margin: 0;
  font-size: 0.875rem;
}
.demo-note {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 19px;
  line-height: 1.8;
}
.demo-note a {
  color: var(--blue);
  white-space: nowrap;
}
.audio-error {
  color: #963c26;
  font-size: 0.8rem;
  margin-top: 8px;
}
.ideas {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  padding-block: 9px 35px;
}
.ideas article {
  display: flex;
  gap: 19px;
}
.idea-number {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--blue);
  padding-top: 3px;
}
.ideas h3 {
  margin-bottom: 11px;
}
.ideas p {
  color: var(--muted);
  line-height: 1.85;
}
.architecture {
  border-top: 1px solid var(--line);
  padding-top: 35px;
}
.architecture img {
  width: 100%;
  max-width: 1020px;
  margin-inline: auto;
}
.architecture figcaption {
  margin: 23px auto 0;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.8;
  max-width: 1020px;
}
.architecture figcaption a {
  color: var(--blue);
}
.results-section {
  background: var(--ink);
  color: white;
}
.results-section .eyebrow {
  color: #9dbdcd;
}
.results-section .text-link {
  font-size: 0.875rem;
  color: #94daef;
  border-bottom: 1px solid #536c7e;
  padding-bottom: 5px;
  white-space: nowrap;
}
.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 40px;
}
.metrics > div {
  border-left: 1px solid #3a4b5e;
  padding-left: 30px;
}
.metrics > div:first-child {
  border: 0;
  padding-left: 0;
}
.metrics strong {
  font-size: 3.7rem;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.05em;
  font-variant-numeric: tabular-nums;
}
.metrics strong span {
  font-size: 2.25rem;
  color: #8edaf0;
  margin-left: 4px;
}
.metrics p {
  color: #c3d1db;
  font-size: 0.875rem;
  margin-top: 9px;
}
.metric-note {
  color: #9fb2c1;
  font-size: 0.8rem;
  margin-top: 25px;
  max-width: 760px;
}
.results-table-wrap {
  overflow: auto;
  margin-top: 36px;
}
.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  white-space: nowrap;
}
.results-table caption {
  text-align: left;
  font-size: 0.875rem;
  color: #c3d1db;
  padding-bottom: 15px;
}
.results-table th,
.results-table td {
  text-align: left;
  padding: 15px 19px;
  border-bottom: 1px solid #33485a;
  font-variant-numeric: tabular-nums;
}
.results-table thead th {
  font-size: 0.8rem;
  font-weight: 500;
  color: #a8bdcc;
}
.results-table tbody th {
  font-weight: 550;
}
.results-table th:first-child {
  padding-left: 0;
}
.results-table .ours {
  background: #20394c;
}
.results-table .ours th {
  padding-left: 15px;
}
.results-table .ours span {
  font-size: 0.75rem;
  color: #91d9ef;
  margin-left: 8px;
}
.result-note {
  font-size: 0.8rem;
  color: #a8bdcc;
  margin-top: 18px;
  line-height: 1.8;
}
.citation-section {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 70px;
  align-items: start;
}
.citation-intro .eyebrow {
  margin-bottom: 15px;
}
.citation-intro > p:not(.eyebrow) {
  color: var(--muted);
  margin: 22px 0;
  max-width: 365px;
}
.citation-box {
  border: 1px solid var(--line);
  border-radius: 4px;
  min-width: 0;
}
.citation-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 17px 20px;
  border-bottom: 1px solid var(--line);
}
.citation-heading h3 {
  font-size: 1rem;
  letter-spacing: -0.02em;
}
.citation-heading button {
  background: white;
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 6px 10px;
  font-size: 0.75rem;
  color: var(--blue);
  font-weight: 600;
}
pre {
  margin: 0;
  overflow: auto;
  padding: 22px 20px;
  font-size: 0.78rem;
  line-height: 1.85;
  background: #f8fafb;
  border-radius: 0 0 4px 4px;
}
footer {
  border-top: 1px solid var(--line);
  padding-block: 28px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  align-items: center;
}
.footer-inner strong {
  font-size: 1.1rem;
  letter-spacing: -0.025em;
}
.footer-inner p span {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 3px;
}
.footer-inner > div {
  display: flex;
  gap: 25px;
  font-size: 0.85rem;
  color: var(--muted);
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
@media (min-width: 1500px) {
  .hero {
    padding-block: 68px;
  }
  .hero-copy {
    max-width: 660px;
  }
}
@media (max-width: 1050px) {
  .hero {
    gap: 40px;
    grid-template-columns: 1.25fr 1fr;
  }
  .hero-actions {
    gap: 10px;
  }
  .listen-link {
    flex-basis: 100%;
    padding-bottom: 0;
  }
  .example-quote {
    font-size: 1.6rem;
  }
  .first-listen {
    padding: 25px 23px;
  }
  .model-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .citation-section {
    gap: 40px;
  }
  .metrics strong {
    font-size: 3.2rem;
  }
}
@media (max-width: 800px) {
  .wrap {
    width: calc(100% - 44px);
  }
  .hero {
    grid-template-columns: 1fr 1fr;
    gap: 25px;
  }
  .hero .eyebrow {
    font-size: 0.68rem;
  }
  .paper-subtitle {
    font-size: 1.65rem;
  }
  h1 {
    font-size: 3.2rem;
  }
  .authors {
    margin-top: 20px;
  }
  .affiliation {
    font-size: 0.8rem;
  }
  .first-listen {
    padding: 24px 20px;
  }
  .example-quote {
    font-size: 1.55rem;
  }
  .example-quote br {
    display: none;
  }
  .section {
    padding-block: 65px;
  }
  .section-heading {
    gap: 25px;
    align-items: start;
  }
  .section-heading > p {
    max-width: 330px;
    font-size: 0.875rem;
  }
  .sample-panel {
    padding-inline: 22px;
  }
  .featured-comparison {
    gap: 15px;
  }
  .audio-card {
    padding: 16px;
  }
  .audio-card-header {
    flex-wrap: wrap;
    gap: 7px;
  }
  .metrics > div {
    padding-left: 20px;
  }
  .metrics p {
    font-size: 0.8rem;
  }
  .citation-section {
    grid-template-columns: 1fr;
  }
  .citation-intro > p:not(.eyebrow) {
    max-width: 620px;
  }
  .ideas {
    gap: 30px;
  }
  .institutions {
    gap: 17px;
  }
  nav {
    gap: 20px;
    font-size: 0.8rem;
  }
}
@media (max-width: 620px) {
  html {
    scroll-padding-top: 120px;
  }
  .header-inner {
    flex-direction: column;
    gap: 8px;
    padding: 13px 0 10px;
  }
  .institutions img {
    width: 104px;
    height: 35px;
  }
  .institutions .tu-logo {
    width: 84px;
    height: 33px;
  }
  .brand-rule {
    height: 27px;
  }
  .institutions {
    gap: 23px;
  }
  nav {
    gap: 29px;
  }
  nav a {
    padding: 0;
  }
  .hero {
    grid-template-columns: 1fr;
    padding-top: 32px;
    padding-bottom: 35px;
    gap: 27px;
  }
  .hero .eyebrow {
    font-size: 0.7rem;
    margin-bottom: 11px;
  }
  h1 {
    font-size: 3.6rem;
  }
  .paper-subtitle {
    font-size: 1.8rem;
    margin-top: 10px;
  }
  .authors {
    margin-top: 19px;
  }
  .affiliation {
    font-size: 0.8rem;
  }
  .hero-actions {
    margin-top: 20px;
    gap: 10px;
  }
  .button {
    padding: 10px 14px;
    font-size: 0.83rem;
  }
  .listen-link {
    flex-basis: auto;
    font-size: 0.8rem;
    padding: 10px 0;
  }
  .first-listen {
    padding: 21px 23px;
  }
  .first-listen .eyebrow {
    font-size: 0.7rem;
    margin: 0;
  }
  .example-quote {
    font-size: 1.6rem;
    margin-top: 15px;
  }
  .waveform {
    height: 37px;
    margin: 9px 0 12px;
  }
  .player-caption {
    margin-top: 9px;
  }
  .listen-section {
    padding-block: 35px;
  }
  .section-heading {
    flex-direction: column;
    gap: 17px;
    margin-bottom: 23px;
  }
  .section-heading > p {
    max-width: 100%;
    font-size: 0.9rem;
  }
  .desktop-break {
    display: none;
  }
  .sample-switcher {
    padding: 15px 17px;
    gap: 6px;
  }
  .sample-switcher > span {
    flex-basis: 100%;
    margin-bottom: 3px;
  }
  .sample-switcher button {
    flex: 1 1 0;
    min-width: 0;
    padding: 6px 2px;
    font-size: 0.72rem;
  }
  .sample-switcher button span {
    display: block;
  }
  .sample-panel {
    padding: 20px 17px 0;
  }
  .transcript {
    font-size: 1rem;
    margin-bottom: 20px;
  }
  .featured-comparison {
    grid-template-columns: 1fr;
    gap: 13px;
    margin-bottom: 18px;
  }
  .audio-card-header {
    flex-wrap: nowrap;
  }
  .comparisons summary {
    font-size: 0.95rem;
    line-height: 1.8;
  }
  .comparisons summary span {
    display: block;
    margin-left: 19px;
    font-size: 0.8rem;
  }
  .model-grid {
    grid-template-columns: 1fr;
  }
  .demo-note {
    font-size: 0.75rem;
  }
  .section {
    padding-block: 48px;
  }
  .ideas {
    grid-template-columns: 1fr;
    gap: 25px;
    padding-top: 3px;
    padding-bottom: 27px;
  }
  .ideas p {
    font-size: 0.95rem;
  }
  .architecture {
    padding-top: 26px;
  }
  .architecture figcaption {
    font-size: 0.8rem;
    margin-top: 17px;
  }
  .metrics {
    grid-template-columns: 1fr;
    gap: 24px;
    margin-top: 25px;
  }
  .metrics > div,
  .metrics > div:first-child {
    padding: 0 0 23px;
    border: 0;
    border-bottom: 1px solid #3a4b5e;
  }
  .metrics strong {
    font-size: 3.1rem;
  }
  .metrics p {
    margin-top: 4px;
    font-size: 0.85rem;
  }
  .metric-note {
    margin-top: 19px;
  }
  .results-table {
    font-size: 0.83rem;
  }
  .results-table th,
  .results-table td {
    padding-inline: 14px;
  }
  .citation-section {
    gap: 30px;
  }
  .citation-intro h2 {
    font-size: 2rem;
  }
  .citation-intro > p:not(.eyebrow) {
    font-size: 0.95rem;
  }
  pre {
    font-size: 0.73rem;
    padding: 17px 15px;
  }
  .citation-heading {
    padding: 15px;
  }
  .footer-inner {
    align-items: start;
    flex-direction: column;
    gap: 15px;
  }
  .footer-inner > div {
    gap: 22px;
    font-size: 0.8rem;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}