:root {
  --ink: #0f1419;
  --ink-muted: #3d4550;
  --line: #d0d6e0;
  --surface: #ffffff;
  --wash: #eef1f5;
  --wash-deep: #e2e6ed;
  --navy: #0a1f3d;
  --navy-mid: #0c2340;
  --navy-hover: #1a4a7a;
  --footer-bg: #121a24;
  --footer-text: rgba(255, 255, 255, 0.78);
  --footer-muted: rgba(255, 255, 255, 0.52);
  --wrap: min(100% - 2.5rem, 72rem);
  --wrap-tight: min(100% - 2.5rem, 52rem);
}

@media (max-width: 639px) {
  :root {
    --wrap: min(100% - 2rem, 72rem);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body.home-page {
  --wrap-tight: min(100% - 2.5rem, 42rem);
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  font-weight: 400;
  line-height: 1.55;
  color: var(--ink);
  background: var(--wash);
}

a {
  color: var(--navy-mid);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  color: var(--navy-hover);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

a:focus-visible {
  outline: 2px solid var(--navy-mid);
  outline-offset: 2px;
}

.wrap {
  width: var(--wrap);
  margin-inline: auto;
}

.wrap-tight {
  width: var(--wrap-tight);
  margin-inline: auto;
}

.utility {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.utility .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 2.25rem;
  padding-block: 0.35rem;
}

.utility-nav {
  display: flex;
  gap: 1rem;
}

.utility a {
  color: rgba(255, 255, 255, 0.88);
}

.utility a:hover,
.utility a:focus-visible {
  color: #fff;
}

.utility a:focus-visible {
  outline-color: #fff;
}

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.site-header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  min-height: 4.5rem;
  padding-block: 0.85rem;
}

@media (min-width: 960px) {
  .site-header .inner {
    min-height: 5.25rem;
  }
}

@media (max-width: 22rem) {
  .site-header .inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
}

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-width: 0;
}

.brand img {
  height: 2.35rem;
  width: auto;
  flex-shrink: 0;
  display: block;
}

@media (min-width: 960px) {
  .brand img {
    height: 2.85rem;
  }
}

.brand-text .name {
  font-family: "Crimson Pro", ui-serif, Georgia, serif;
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: 0.02em;
  line-height: 1.15;
  color: var(--ink);
}

@media (min-width: 960px) {
  .brand-text .name {
    font-size: 1.35rem;
  }
}

.brand-text .suffix {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--ink-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 0.2rem;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 0;
  flex-shrink: 0;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.header-nav a {
  color: var(--ink);
  padding: 0.5rem 0;
}

.header-nav a[aria-current="page"],
.utility-nav a[aria-current="page"] {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

@media (min-width: 640px) {
  .header-nav a {
    padding: 0.5rem 0.85rem;
  }

  .header-nav a:first-child {
    padding-left: 0;
  }

  .header-nav a:not(:first-child) {
    border-left: 1px solid var(--line);
  }
}

@media (max-width: 639px) {
  .header-nav {
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
  }
}

.hero {
  background: linear-gradient(180deg, var(--surface) 0%, var(--wash-deep) 100%);
  border-bottom: 1px solid var(--line);
}

.hero-with-image {
  background-color: #091220;
  background-image:
    linear-gradient(180deg, rgba(5, 12, 23, 0.76) 0%, rgba(7, 15, 28, 0.7) 46%, rgba(10, 19, 34, 0.82) 100%),
    var(--hero-background-image);
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

.hero .inner {
  padding-block: 3rem 3.25rem;
}

@media (min-width: 960px) {
  .hero .inner {
    padding-block: 4rem 4.5rem;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem 3rem;
    align-items: end;
  }
}

.home-page .hero {
  height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.home-page .hero .inner {
  padding-block: 2.25rem 2.5rem;
}

@media (min-width: 960px) {
  .home-page .hero .inner {
    padding-block: 3.25rem 3.75rem;
  }
}

.page-title {
  font-family: "Crimson Pro", ui-serif, Georgia, serif;
  font-weight: 600;
  font-size: clamp(1.75rem, 2.8vw + 1rem, 3rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--navy);
  margin: 0 0 0.65rem;
  max-width: 18ch;
}

.hero-with-image .page-title,
.hero-with-image .page-sub {
  color: rgba(255, 255, 255, 0.96);
  text-shadow: 0 0.08rem 1.35rem rgba(0, 0, 0, 0.32);
}

.home-page .page-title {
  font-size: clamp(1.65rem, 2.8vw + 1rem, 2.85rem);
  max-width: 22ch;
}

.page-title-logo {
  max-width: min(100%, 18rem);
}

.page-title-logo img {
  display: block;
  width: 100%;
  height: auto;
}

@media (min-width: 960px) {
  .page-title-logo {
    max-width: min(100%, 20rem);
  }
}

@media (min-width: 960px) {
  .page-title {
    margin-bottom: 0;
    max-width: none;
  }
}

.page-sub {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink-muted);
  letter-spacing: 0.02em;
}

@media (min-width: 960px) {
  .page-sub {
    text-align: right;
    font-size: 1rem;
    max-width: 20rem;
    justify-self: end;
    line-height: 1.45;
    border-left: 3px solid var(--navy);
    padding-left: 1.25rem;
  }

  .hero-with-image .page-sub {
    border-left-color: rgba(255, 255, 255, 0.42);
  }

  .home-page .page-sub {
    max-width: 16rem;
  }
}

main {
  padding-block: 2.5rem 3.5rem;
}

@media (min-width: 960px) {
  main {
    padding-block: 3rem 4.5rem;
  }
}

.home-page main {
  padding-block: 2.5rem 3rem;
}

.intro-lede,
.lede {
  font-family: "Crimson Pro", ui-serif, Georgia, serif;
  font-weight: 500;
  font-size: 1.2rem;
  line-height: 1.45;
  color: var(--navy-mid);
}

.intro-lede {
  margin: 0 0 1.15rem;
}

@media (min-width: 960px) {
  .intro-lede {
    font-size: 1.35rem;
    margin-bottom: 1.35rem;
    padding-bottom: 1.35rem;
    border-bottom: 1px solid var(--line);
  }
}

.lede {
  margin: 0 0 1.5rem;
}

.prose p {
  margin: 0 0 1rem;
  color: var(--ink-muted);
  font-size: 0.9375rem;
}

@media (min-width: 960px) {
  .prose p {
    font-size: 1.0625rem;
    line-height: 1.6;
    max-width: 38rem;
  }
}

.prose p:last-child {
  margin-bottom: 0;
}

.toc {
  display: grid;
  gap: 0.75rem;
  margin: 0 0 2rem;
  padding: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--line);
}

.toc h2 {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.toc ul,
.footer-links,
.site-footer .registry {
  list-style: none;
  margin: 0;
  padding: 0;
}

.toc ul {
  display: grid;
  gap: 0.5rem;
}

.legal-section,
.attribution-card {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 1.5rem;
}

@media (min-width: 960px) {
  .legal-section,
  .attribution-card {
    padding: 2rem;
  }
}

.legal-section {
  margin-bottom: 1.25rem;
  scroll-margin-top: 1.5rem;
}

.legal-section h2,
.attribution-card h2 {
  margin: 0 0 1rem;
  font-family: "Crimson Pro", ui-serif, Georgia, serif;
  font-size: 1.6rem;
  line-height: 1.2;
  color: var(--navy);
}

.section-heading {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

@media (min-width: 720px) {
  .section-heading {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
  }
}

.section-heading h2 {
  margin: 0;
}

.section-meta {
  margin: 0;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.legal-section p,
.legal-section li,
.attribution-card p,
.attribution-card li {
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.legal-section ul,
.attribution-card ul {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
}

.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.site-footer a {
  color: #fff;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: rgba(255, 255, 255, 0.85);
}

.site-footer a:focus-visible {
  outline-color: #fff;
}

.footer-grid {
  display: grid;
  gap: 1.75rem;
  padding-block: 2rem 2.5rem;
}

@media (min-width: 960px) {
  .footer-grid {
    grid-template-columns: 1.35fr 1fr 1fr;
    gap: 2.5rem 3rem;
    padding-block: 2.75rem 3rem;
  }
}

.footer-col h3 {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--footer-muted);
  margin: 0 0 0.65rem;
}

.footer-col .item a {
  color: var(--footer-muted);
  text-decoration: none;
  font-size: 0.6875rem;
  line-height: 1.65;
  margin: 0;
}

.footer-col .item a:hover,
.footer-col .item a:focus-visible {
  color: rgba(255, 255, 255, 0.85);
}

.disclaimer {
  font-size: 0.6875rem;
  line-height: 1.65;
  color: var(--footer-muted);
  margin: 0;
}

@media (min-width: 960px) {
  .disclaimer {
    max-width: 36rem;
  }
}

.footer-links {
  font-size: 0.8125rem;
  line-height: 1.7;
}

.site-footer .registry {
  font-size: 0.8125rem;
  line-height: 1.55;
  color: var(--footer-text);
}

.site-footer .registry li {
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.15rem;
}

@media (min-width: 480px) {
  .site-footer .registry li {
    grid-template-columns: 8.25rem 1fr;
    gap: 0.75rem;
    align-items: baseline;
  }
}

.site-footer .registry li:first-child {
  padding-top: 0;
}

.site-footer .registry li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.site-footer .registry dt {
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
}

.site-footer .registry dd {
  margin: 0;
  color: var(--footer-muted);
}

.footer-meta {
  grid-column: 1 / -1;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.75rem;
  color: var(--footer-muted);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

body {
  transition: opacity 0.5s ease-in-out;
}