:root {
  color-scheme: light dark;
  --navy-950: #07172d;
  --navy-900: #0b1f3a;
  --navy-800: #173659;
  --blue-700: #075bc8;
  --blue-600: #0a67dc;
  --blue-100: #dbeafe;
  --blue-50: #eff6ff;
  --green-700: #17633a;
  --green-100: #dff5e8;
  --amber-700: #774600;
  --amber-100: #fff1cc;
  --surface: #ffffff;
  --surface-soft: #f6f8fb;
  --text: #17243a;
  --muted: #4f6076;
  --line: #d4dce8;
  --focus: #ffb000;
  --shadow: 0 18px 55px rgb(15 35 60 / 12%);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: 1120px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

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

body {
  min-block-size: 100vh;
  margin: 0;
  background: var(--surface);
  color: var(--text);
  font-size: 1.0625rem;
  line-height: 1.72;
}

img,
svg {
  display: block;
}

a {
  color: var(--blue-700);
  text-decoration-thickness: 0.09em;
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration-thickness: 0.14em;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  inset-block-start: 0.75rem;
  inset-inline-start: 0.75rem;
  z-index: 100;
  padding: 0.7rem 1rem;
  border-radius: 0.6rem;
  background: var(--navy-950);
  color: #ffffff;
  font-weight: 800;
  transform: translateY(-180%);
}

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

.container {
  inline-size: min(var(--container), calc(100% - 2.5rem));
  margin-inline: auto;
}

.site-header {
  position: relative;
  z-index: 10;
  border-block-end: 1px solid var(--line);
  background: rgb(255 255 255 / 96%);
}

.header-inner {
  min-block-size: 5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--navy-900);
  font-size: 1.32rem;
  font-weight: 900;
  text-decoration: none;
}

.brand-mark {
  inline-size: 2.85rem;
  block-size: 2.85rem;
  display: grid;
  place-items: center;
  flex: none;
  border-radius: 0.9rem;
  background: linear-gradient(145deg, var(--blue-600), #064a9f);
  color: #ffffff;
  box-shadow: 0 8px 22px rgb(10 103 220 / 22%);
}

.brand-mark svg {
  inline-size: 1.7rem;
  block-size: 1.7rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.9;
}

.site-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: clamp(0.7rem, 2.4vw, 1.8rem);
  font-size: 0.96rem;
  font-weight: 750;
}

.site-nav a {
  min-block-size: 2.75rem;
  display: inline-flex;
  align-items: center;
  padding-inline: 0.15rem;
  color: var(--navy-800);
  text-decoration: none;
  border-block-end: 3px solid transparent;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--blue-700);
  border-block-end-color: currentColor;
}

.hero {
  position: relative;
  overflow: hidden;
  border-block-end: 1px solid var(--blue-100);
  background:
    radial-gradient(circle at 15% 25%, rgb(255 255 255 / 85%) 0 12rem, transparent 12.1rem),
    linear-gradient(125deg, #ffffff 0%, var(--blue-50) 55%, #ddebff 100%);
}

.hero-inner {
  min-block-size: 34rem;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(17rem, 0.8fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
  padding-block: clamp(3.5rem, 9vw, 6.5rem);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-block-end: 1rem;
  padding: 0.35rem 0.8rem;
  border: 1px solid #b8d5fb;
  border-radius: 999px;
  background: rgb(255 255 255 / 76%);
  color: var(--blue-700);
  font-size: 0.88rem;
  font-weight: 850;
}

h1,
h2,
h3 {
  color: var(--navy-900);
  line-height: 1.22;
  text-wrap: balance;
}

h1 {
  max-inline-size: 18ch;
  margin: 0;
  font-size: clamp(2.65rem, 7vw, 5.1rem);
  font-weight: 950;
  letter-spacing: -0.035em;
}

.hero-copy > p {
  max-inline-size: 45rem;
  margin-block: 1.35rem 0;
  color: var(--navy-800);
  font-size: clamp(1.08rem, 2vw, 1.28rem);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-block-start: 1.8rem;
}

.actions.center {
  justify-content: center;
}

.button {
  min-block-size: 3.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.72rem 1.2rem;
  border: 2px solid var(--blue-700);
  border-radius: 0.8rem;
  background: var(--blue-700);
  color: #ffffff;
  font-weight: 850;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgb(7 91 200 / 24%);
}

.button.secondary {
  background: #ffffff;
  color: var(--blue-700);
}

.button svg {
  inline-size: 1.25rem;
  block-size: 1.25rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.road-card {
  position: relative;
  min-block-size: 22rem;
  display: grid;
  place-items: center;
}

.sign {
  position: relative;
  inline-size: min(18rem, 70vw);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border: 1.15rem solid #e53935;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: var(--shadow);
  color: var(--navy-900);
}

.sign::after {
  content: "?";
  font-size: clamp(7rem, 18vw, 10rem);
  font-weight: 950;
  line-height: 1;
  transform: translateY(-0.08em);
}

.road-line {
  position: absolute;
  inset-inline-end: -4rem;
  inset-block-end: -2rem;
  inline-size: 17rem;
  block-size: 5rem;
  border-block-start: 0.9rem solid var(--navy-900);
  border-radius: 50%;
  opacity: 0.08;
  transform: rotate(-12deg);
}

.section {
  padding-block: clamp(3.5rem, 8vw, 6rem);
}

.section.soft {
  border-block: 1px solid var(--line);
  background: var(--surface-soft);
}

.section-heading {
  max-inline-size: 46rem;
  margin-block-end: 2rem;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(1.9rem, 4vw, 2.8rem);
}

.section-heading p {
  margin-block: 0.7rem 0;
  color: var(--muted);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.card {
  min-block-size: 100%;
  padding: 1.55rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: 0 10px 30px rgb(15 35 60 / 6%);
}

.card-icon {
  inline-size: 3rem;
  block-size: 3rem;
  display: grid;
  place-items: center;
  margin-block-end: 1rem;
  border-radius: 0.9rem;
  background: var(--blue-100);
  color: var(--blue-700);
}

.card-icon svg {
  inline-size: 1.65rem;
  block-size: 1.65rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.card h2,
.card h3 {
  margin-block: 0 0.6rem;
  font-size: 1.28rem;
}

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

.card a.stretched {
  display: inline-block;
  margin-block-start: 1rem;
  font-weight: 800;
}

.callout {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 1.5rem;
  padding: clamp(1.5rem, 4vw, 2.3rem);
  border: 1px solid #b8d5fb;
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, var(--blue-50), #ffffff);
}

.callout h2 {
  margin: 0;
  font-size: clamp(1.55rem, 3vw, 2rem);
}

.callout p {
  margin-block: 0.45rem 0;
  color: var(--muted);
}

.page-hero {
  padding-block: clamp(3.6rem, 8vw, 6rem);
  border-block-end: 1px solid var(--blue-100);
  background: linear-gradient(180deg, var(--blue-50), #ffffff);
  text-align: center;
}

.page-hero h1 {
  max-inline-size: none;
  font-size: clamp(2.5rem, 7vw, 4.7rem);
}

.page-hero p {
  max-inline-size: 48rem;
  margin: 1rem auto 0;
  color: var(--navy-800);
  font-size: 1.12rem;
}

.updated {
  display: block;
  margin-block-start: 1rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.document-shell {
  padding-block: clamp(2.5rem, 7vw, 5rem);
}

.document-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 17rem;
  gap: clamp(2.5rem, 7vw, 5.5rem);
  align-items: start;
}

.toc {
  position: sticky;
  inset-block-start: 1.5rem;
  grid-column: 2;
  grid-row: 1;
  padding-inline-start: 1.5rem;
  border-inline-start: 1px solid var(--line);
}

.toc h2 {
  margin-block: 0 0.8rem;
  font-size: 1.04rem;
}

.toc ol,
.toc ul {
  margin: 0;
  padding-inline-start: 1.25rem;
  font-size: 0.91rem;
}

.toc li + li {
  margin-block-start: 0.5rem;
}

.toc a {
  color: var(--navy-800);
  text-decoration: none;
}

.toc a:hover {
  color: var(--blue-700);
  text-decoration: underline;
}

.document {
  max-inline-size: 48rem;
  grid-column: 1;
  grid-row: 1;
}

.summary {
  margin-block-end: 2.4rem;
  padding: clamp(1.35rem, 4vw, 2rem);
  border: 1px solid #b8d5fb;
  border-radius: var(--radius-md);
  background: var(--blue-50);
}

.summary h2 {
  margin-block: 0 0.75rem;
  font-size: 1.45rem;
}

.summary ul {
  margin: 0;
  padding-inline-start: 1.4rem;
}

.summary li + li {
  margin-block-start: 0.4rem;
}

.doc-section {
  scroll-margin-block-start: 1.5rem;
  padding-block: 0 2rem;
  border-block-end: 1px solid var(--line);
}

.doc-section + .doc-section {
  padding-block-start: 2rem;
}

.doc-section h2 {
  margin-block: 0 0.7rem;
  font-size: 1.5rem;
}

.doc-section h3 {
  margin-block: 1.3rem 0.4rem;
  font-size: 1.08rem;
}

.doc-section p {
  margin-block: 0;
  color: #334760;
}

.doc-section p + p {
  margin-block-start: 0.8rem;
}

.doc-section ul,
.doc-section ol {
  margin-block: 0.8rem 0;
  padding-inline-start: 1.45rem;
  color: #334760;
}

.doc-section li + li {
  margin-block-start: 0.45rem;
}

.note {
  margin-block: 1rem 0;
  padding: 1rem 1.1rem;
  border-inline-start: 0.35rem solid var(--amber-700);
  border-radius: 0.4rem;
  background: var(--amber-100);
  color: #4b330d;
}

.status-list {
  display: grid;
  gap: 0.75rem;
  margin-block: 1rem 0;
  padding: 0;
  list-style: none;
}

.status-list li {
  padding: 0.9rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--green-100);
  color: #164b30;
}

.faq-list {
  display: grid;
  gap: 1rem;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.faq-list summary {
  min-block-size: 3.25rem;
  display: flex;
  align-items: center;
  cursor: pointer;
  padding: 0.85rem 1rem;
  color: var(--navy-900);
  font-weight: 850;
}

.faq-list details[open] summary {
  border-block-end: 1px solid var(--line);
}

.faq-answer {
  padding: 1rem;
  color: var(--muted);
}

.faq-answer p {
  margin: 0;
}

.faq-answer p + p {
  margin-block-start: 0.7rem;
}

.contact-panel {
  margin-block-start: 2rem;
  padding: clamp(1.4rem, 4vw, 2rem);
  border-radius: var(--radius-lg);
  background: var(--navy-900);
  color: #ffffff;
}

.contact-panel h2 {
  margin-block: 0 0.55rem;
  color: #ffffff;
}

.contact-panel p {
  margin-block: 0;
  color: #dce8f7;
}

.contact-panel .button {
  margin-block-start: 1rem;
  border-color: #ffffff;
  background: #ffffff;
  color: var(--navy-900);
}

.ltr {
  direction: ltr;
  unicode-bidi: isolate;
}

.site-footer {
  background: var(--navy-950);
  color: #dce8f7;
}

.footer-inner {
  min-block-size: 9rem;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 2rem;
}

.footer-title {
  color: #ffffff;
  font-size: 1.13rem;
  font-weight: 900;
}

.footer-copy {
  margin-block: 0.2rem 0;
  color: #b9cae1;
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.8rem 1.3rem;
}

.footer-links a {
  color: #ffffff;
}

.footer-meta {
  padding-block: 0.85rem;
  border-block-start: 1px solid rgb(255 255 255 / 15%);
  color: #a9bdd6;
  text-align: center;
  font-size: 0.84rem;
}

@media (max-width: 850px) {
  .header-inner {
    flex-direction: column;
    padding-block: 0.75rem;
  }

  .site-nav {
    inline-size: 100%;
    justify-content: center;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-copy {
    display: grid;
    justify-items: center;
  }

  .road-card {
    min-block-size: 17rem;
    grid-row: 1;
  }

  .sign {
    inline-size: min(14rem, 64vw);
  }

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

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

  .document-layout {
    display: block;
  }

  .toc {
    position: static;
    margin-block-end: 2.2rem;
    padding: 1.2rem 1.4rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--surface-soft);
  }

  .toc ol,
  .toc ul {
    columns: 2;
  }

  .document {
    max-inline-size: none;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    padding-block: 2rem;
    text-align: center;
  }

  .footer-links {
    justify-content: center;
  }
}

@media (max-width: 540px) {
  body {
    font-size: 1rem;
  }

  .container {
    inline-size: min(var(--container), calc(100% - 1.5rem));
  }

  .site-nav {
    gap: 0.35rem 0.85rem;
    font-size: 0.88rem;
  }

  .hero-inner {
    min-block-size: auto;
  }

  .actions {
    inline-size: 100%;
    flex-direction: column;
  }

  .button {
    inline-size: 100%;
  }

  .toc ol,
  .toc ul {
    columns: 1;
  }
}

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

  .button {
    transition: none;
  }
}

@media (prefers-contrast: more) {
  :root {
    --line: #718096;
    --muted: #2d3e55;
  }

  .card,
  .callout,
  .summary,
  .faq-list details {
    border-width: 2px;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --surface: #101827;
    --surface-soft: #162033;
    --text: #edf4ff;
    --muted: #bdcbe0;
    --line: #34445c;
    --blue-700: #8ec5ff;
    --blue-100: #173b64;
    --blue-50: #142a46;
    --navy-900: #f3f7ff;
    --navy-800: #d5e3f5;
    --green-100: #143b2a;
    --amber-100: #44330f;
  }

  .site-header {
    background: rgb(16 24 39 / 96%);
  }

  .hero {
    background: linear-gradient(125deg, #101827 0%, #142a46 100%);
  }

  .eyebrow,
  .button.secondary,
  .card,
  .callout,
  .faq-list details {
    background: #162033;
  }

  .button.secondary {
    color: var(--blue-700);
  }

  .button {
    border-color: #8ec5ff;
    background: #075bc8;
    color: #ffffff;
  }

  .button.secondary {
    background: #162033;
    color: #8ec5ff;
  }

  .contact-panel {
    background: #07172d;
  }

  .contact-panel .button {
    border-color: #ffffff;
    background: #ffffff;
    color: #0b1f3a;
  }

  .sign {
    background: #ffffff;
    color: #0b1f3a;
  }

  .doc-section p,
  .doc-section ul,
  .doc-section ol {
    color: #cfdaeb;
  }

  .note {
    color: #ffe6ac;
  }

  .status-list li {
    color: #b8f0d0;
  }
}