:root {
  --ink: #17223a;
  --ink-soft: #536078;
  --violet: #6975ce;
  --blue: #368fdd;
  --cyan: #5ccac9;
  --peach: #f2cfc3;
  --cream: #fff3df;
  --line: #dfe5f1;
  --max: 1320px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 24px;
}

body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: "DM Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
}

a {
  color: #3f62b6;
  text-decoration: none;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 8px 13px;
  color: #fff;
  background: var(--ink);
  border-radius: 8px;
  transform: translateY(-160%);
}

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

.hero {
  position: relative;
  overflow: hidden;
  min-height: 760px;
  padding: clamp(64px, 7vw, 106px) max(28px, calc((100vw - var(--max)) / 2));
  background:
    radial-gradient(circle at -4% -12%, #fff0de 0%, rgba(255, 224, 216, 0.92) 18%, transparent 43%),
    radial-gradient(circle at 106% 106%, #a3edca 0%, rgba(88, 207, 211, 0.95) 24%, transparent 49%),
    linear-gradient(124deg, #dec6df 0%, #9a91d8 34%, #6477ce 56%, #438fd7 78%, #62c8d0 100%);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(460px, 1.05fr);
  gap: clamp(46px, 6vw, 92px);
  align-items: center;
  max-width: var(--max);
  min-height: 560px;
  margin: 0 auto;
}

.eyebrow,
.kicker {
  margin: 0 0 16px;
  color: #4858a6;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: rgba(255, 255, 255, 0.88);
}

h1,
h2,
h3 {
  font-family: "Manrope", sans-serif;
}

h1 {
  margin: 0;
  color: #fff;
  font-size: clamp(31px, 3.25vw, 52px);
  font-weight: 700;
  letter-spacing: -0.05em;
  line-height: 1.1;
  text-shadow: 0 3px 22px rgba(49, 47, 109, 0.12);
}

h1 .brand {
  display: block;
  margin-bottom: 14px;
  color: #fff0c4;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.3em;
  font-style: italic;
  letter-spacing: -0.04em;
}

h1 > span:last-child {
  display: block;
  max-width: 760px;
}

.hero-points {
  display: grid;
  gap: 13px;
  margin-top: 34px;
}

.hero-points article {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 13px;
  align-items: start;
}

.hero-points p {
  margin: 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 15px;
  line-height: 1.5;
}

.hero-points strong {
  color: #fff7dc;
}

.point-icon {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  color: #fff1ca;
  border: 1px solid rgba(255, 241, 202, 0.72);
  border-radius: 50%;
  font-family: "Manrope", sans-serif;
  font-size: 9px;
  font-weight: 800;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 92px;
  padding: 10px 18px;
  color: #273450;
  background: rgba(255, 244, 218, 0.95);
  border: 1px solid rgba(255, 232, 177, 0.95);
  border-radius: 999px;
  box-shadow: 0 8px 24px rgba(45, 54, 108, 0.13);
  font-size: 14px;
  font-weight: 800;
  transition: transform 160ms ease, background 160ms ease;
}

.button:hover {
  color: #273450;
  background: #fff9eb;
  transform: translateY(-2px);
}

.hero-visual {
  display: block;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.13);
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 8px;
  box-shadow: 0 34px 84px rgba(44, 52, 116, 0.24);
}

.hero-visual img {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.paper-meta {
  padding: 54px max(28px, calc((100vw - 1100px) / 2)) 58px;
  text-align: center;
  background:
    linear-gradient(100deg, #fff7f1 0%, #f7f3ff 40%, #eff9ff 72%, #f1fcf8 100%);
  border-bottom: 1px solid var(--line);
}

.authors {
  margin: 0 auto 14px;
  color: #303c57;
  font-size: 19px;
  line-height: 1.8;
}

.authors a {
  color: #4563b0;
  font-weight: 700;
}

sup {
  color: #566ec1;
  font-size: 0.68em;
}

.affiliations {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 24px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.author-notes {
  margin: 10px 0 0;
  color: #8290a3;
  font-size: 13px;
}

.section {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: clamp(30px, 5vw, 82px);
  padding: 98px max(28px, calc((100vw - var(--max)) / 2));
  border-top: 1px solid var(--line);
}

.section-label {
  position: sticky;
  top: 34px;
  align-self: start;
  min-height: 80px;
  padding-left: 20px;
  border-left: 2px solid var(--violet);
}

.section-label span {
  color: var(--cyan);
  font-family: "Manrope", sans-serif;
  font-size: 12px;
  font-weight: 800;
}

.section-label p {
  margin: 5px 0 0;
  font-family: "Manrope", sans-serif;
  font-size: 16px;
  font-weight: 700;
}

.section-content {
  min-width: 0;
}

.section-content > h2 {
  max-width: 930px;
  margin: 0 0 30px;
  color: var(--ink);
  font-size: clamp(34px, 4vw, 56px);
  font-weight: 700;
  letter-spacing: -0.048em;
  line-height: 1.08;
}

.lead {
  max-width: 940px;
  margin: 0 0 38px;
  color: var(--ink-soft);
  font-size: 19px;
}

.two-column-copy {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px;
  max-width: 1040px;
}

.two-column-copy p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 18px;
}

.section-overview {
  background:
    radial-gradient(circle at 95% 0%, rgba(115, 209, 210, 0.13), transparent 25%),
    linear-gradient(145deg, #fff 0%, #f8f9ff 54%, #f4fbfb 100%);
}

.section-approach {
  background:
    radial-gradient(circle at 7% 88%, rgba(247, 201, 184, 0.17), transparent 24%),
    linear-gradient(138deg, #f8f5ff 0%, #f4f9ff 55%, #f4fcfa 100%);
}

.section-policy {
  background: linear-gradient(145deg, #fff 0%, #f8fbff 62%, #fff7f3 100%);
}

.section-results {
  background:
    radial-gradient(circle at 100% 0%, rgba(102, 202, 201, 0.15), transparent 27%),
    linear-gradient(145deg, #f8f6ff 0%, #f4f9ff 58%, #f2fbf8 100%);
}

.section-qualitative {
  background: linear-gradient(145deg, #fff 0%, #faf8ff 54%, #f7fbff 100%);
}

.figure-card {
  display: block;
  width: fit-content;
  max-width: 100%;
  margin: 34px auto 0;
  overflow: hidden;
  background: #fff;
  border: 1px solid #dce4ef;
  border-radius: 16px;
  box-shadow: 0 24px 60px rgba(63, 75, 134, 0.1);
}

.figure-card img {
  display: block;
  width: 100%;
  max-height: 680px;
  object-fit: contain;
}

.figure-card-wide {
  width: 100%;
  max-width: 1120px;
}

.caption {
  max-width: 980px;
  margin: 15px auto 0;
  color: #7b8798;
  font-size: 13px;
  text-align: center;
}

.agent-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 50px;
}

.agent-grid article {
  min-height: 220px;
  padding: 25px 22px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid #dfe5f1;
  border-radius: 13px;
}

.agent-grid span {
  color: #6878c7;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.agent-grid h3 {
  margin: 12px 0 9px;
  font-size: 21px;
  letter-spacing: -0.025em;
}

.agent-grid p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.policy-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.68fr) minmax(0, 1.32fr);
  gap: 38px;
  align-items: center;
}

.policy-layout .figure-card {
  margin: 0;
}

.policy-layout .figure-card img {
  max-height: 460px;
}

.metric-callout {
  margin-top: 34px;
  padding: 24px;
  background: linear-gradient(120deg, #f4efff, #edf8ff 58%, #eefaf6);
  border: 1px solid #dce4f2;
  border-radius: 13px;
}

.metric-callout strong {
  display: block;
  color: #5867bb;
  font-family: "Manrope", sans-serif;
  font-size: 36px;
  line-height: 1.1;
}

.metric-callout span {
  display: block;
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 13px;
}

.result-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 38px 0 54px;
  overflow: hidden;
  background: #dce4ef;
  border: 1px solid #dce4ef;
  border-radius: 14px;
}

.result-stats article {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 156px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.86);
  text-align: center;
}

.result-stats strong {
  color: #5969bd;
  font-family: "Manrope", sans-serif;
  font-size: 38px;
  line-height: 1.1;
}

.result-stats span {
  max-width: 210px;
  margin: 9px auto 0;
  color: var(--ink-soft);
  font-size: 13px;
}

.results-figure img {
  max-height: 600px;
}

.section-citation {
  display: block;
  padding-top: 82px;
  padding-bottom: 100px;
  background: linear-gradient(180deg, #fff 0%, #fafafa 100%);
}

.section-citation .section-content {
  max-width: 1180px;
  margin: 0 auto;
}

.section-citation .section-content > h2 {
  max-width: none;
  margin-bottom: 22px;
  padding-bottom: 22px;
  color: #858585;
  border-bottom: 1px solid #dedede;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(42px, 5vw, 62px);
  letter-spacing: -0.035em;
}

pre {
  margin: 0;
  padding: 28px 40px;
  overflow-x: auto;
  color: #747474;
  background: transparent;
  border: 0;
  font: 16px/1.75 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (max-width: 1060px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-copy,
  .hero-visual {
    max-width: 850px;
  }

  .section {
    grid-template-columns: 130px minmax(0, 1fr);
    gap: 34px;
  }

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

  .policy-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  body {
    font-size: 16px;
  }

  .hero {
    min-height: auto;
    padding: 58px 18px;
  }

  .hero-inner {
    min-height: 0;
  }

  h1 {
    font-size: 32px;
  }

  .paper-meta {
    padding: 42px 18px 46px;
  }

  .authors {
    font-size: 16px;
  }

  .section {
    display: block;
    padding: 68px 18px;
  }

  .section-label {
    position: static;
    margin-bottom: 32px;
  }

  .section-content > h2 {
    font-size: 36px;
  }

  .two-column-copy,
  .agent-grid,
  .result-stats {
    grid-template-columns: 1fr;
  }

  .two-column-copy {
    gap: 18px;
  }

  .agent-grid article {
    min-height: 0;
  }

  .result-stats article {
    min-height: 116px;
  }

  pre {
    padding: 20px 0;
    font-size: 12px;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}