:root {
  color-scheme: light;
  --ink: #17202f;
  --muted: #647085;
  --paper: #f6f8fb;
  --panel: #ffffff;
  --line: #dce3ec;
  --line-strong: #c7d1df;
  --teal: #0e8d72;
  --teal-soft: #e5f5f0;
  --blue: #0b8fbd;
  --orange: #d05a1a;
  --orange-soft: #fff0e7;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

a {
  color: inherit;
  text-decoration: none;
}

code,
pre {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.container,
.hero-inner {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  min-height: 52vh;
  padding: 22px 0 34px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(246, 248, 251, 0.98)),
    url("../../assets/scdd_self_correction_without_remasking.gif") center 68% / cover no-repeat;
  border-bottom: 1px solid var(--line);
}

.hero-inner {
  padding-top: 48px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 12px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  width: 100%;
  margin-bottom: 20px;
  font-size: 40px;
  line-height: 1.08;
  letter-spacing: 0;
  white-space: nowrap;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 19px;
  letter-spacing: 0;
}

.subtitle {
  width: min(800px, 100%);
  margin-bottom: 26px;
  color: #39465a;
  font-size: clamp(18px, 2.3vw, 25px);
}

.authors {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  width: min(920px, 100%);
  margin-bottom: 10px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 800;
}

.authors sup,
.affiliations sup {
  font-size: 0.66em;
  line-height: 0;
}

.affiliations,
.roles {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  width: min(920px, 100%);
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 700;
}

.roles {
  margin-bottom: 26px;
}

.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.90);
  color: var(--ink);
  font-size: 15px;
  font-weight: 850;
}

.button svg {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  fill: currentColor;
}

.button.primary {
  border-color: var(--teal);
  background: var(--teal);
  color: white;
}

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

.teaser {
  padding: 38px 0 44px;
  background: white;
}

.teaser img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 50px rgba(23, 32, 47, 0.10);
}

.teaser p {
  width: min(860px, 100%);
  margin: 24px auto 0;
  color: #39465a;
  font-size: 20px;
  text-align: center;
}

.intro-strip {
  padding: 34px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #eef6f7;
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.overview-grid article {
  min-height: 172px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
}

.overview-grid p {
  margin-bottom: 0;
  color: #39465a;
  font-size: 16px;
}

.content-section {
  padding: 76px 0;
  border-top: 1px solid var(--line);
  background: white;
}

.content-section.soft {
  background: var(--paper);
}

.section-copy {
  width: min(860px, 100%);
  margin-bottom: 26px;
  color: #39465a;
  font-size: 19px;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  box-shadow: 0 14px 38px rgba(23, 32, 47, 0.08);
}

.paper-table {
  width: 100%;
  min-width: 920px;
  border-collapse: collapse;
  font-size: 14px;
}

.paper-table caption {
  padding: 16px 18px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 750;
  text-align: left;
}

.paper-table th,
.paper-table td {
  padding: 13px 14px;
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  vertical-align: middle;
}

.paper-table th:last-child,
.paper-table td:last-child {
  border-right: 0;
}

.paper-table thead th {
  background: #f0f4f8;
  color: var(--ink);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-align: center;
  text-transform: uppercase;
}

.paper-table tbody th {
  width: 150px;
  color: var(--ink);
  font-weight: 900;
  text-align: left;
  white-space: nowrap;
}

.paper-table tbody td {
  color: #263247;
  text-align: center;
}

.comparison-table {
  min-width: 1180px;
}

.comparison-table thead th.generator-header {
  min-width: 560px;
  text-transform: none;
}

.generator-label {
  display: block;
  margin-bottom: 5px;
  text-transform: uppercase;
}

.math-header {
  display: block;
  color: #263247;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.4;
}

.comparison-table tbody tr:nth-child(2) td,
.comparison-table tbody tr:nth-child(3) td {
  padding-top: 22px;
  padding-bottom: 22px;
}

.math-cell {
  min-width: 560px;
  color: #263247;
  line-height: 1.7;
  text-align: left !important;
}

.math-cell mjx-container {
  overflow-x: auto;
  overflow-y: hidden;
  max-width: 100%;
  padding: 2px 0;
}

.comparison-table caption mjx-container,
.comparison-table thead mjx-container {
  display: inline-block;
  vertical-align: -0.18em;
}

.gen-table {
  min-width: 1080px;
}

.gen-table tbody td {
  font-variant-numeric: tabular-nums;
}

.highlight-row {
  background: var(--teal-soft);
}

.highlight-row th {
  color: #08654f;
}

.yes {
  color: var(--teal) !important;
  font-size: 18px;
  font-weight: 900;
}

.no {
  color: var(--orange) !important;
  font-size: 18px;
  font-weight: 900;
}

.dash {
  color: var(--muted) !important;
  font-weight: 900;
}

.table-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 14px;
}

pre {
  overflow-x: auto;
  margin: 22px 0 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #151d2a;
  color: #e8edf5;
  font-size: 15px;
  line-height: 1.5;
}

footer {
  padding: 28px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: white;
  font-size: 15px;
}

footer .container {
  display: flex;
  gap: 12px;
}

footer span:first-child {
  color: var(--teal);
  font-weight: 900;
}

@media (max-width: 820px) {
  .hero {
    min-height: auto;
    padding-bottom: 44px;
  }

  .hero-inner {
    padding-top: 40px;
  }

  h1 {
    font-size: 32px;
    white-space: normal;
  }

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

  .content-section {
    padding: 56px 0;
  }

  .teaser {
    padding-top: 38px;
  }

  .teaser p,
  .section-copy {
    font-size: 17px;
  }
}