:root {
  color-scheme: light;
  --navy: #0b2548;
  --navy-soft: #12315f;
  --blue: #1d5ca8;
  --green: #167347;
  --red: #b42318;
  --ink: #172033;
  --muted: #667085;
  --line: #d8e0ea;
  --surface: #f5f8fc;
  --white: #ffffff;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

a { color: var(--blue); text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible, .button:focus-visible {
  outline: 3px solid #f2b84b;
  outline-offset: 3px;
}

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

.nav,
.container {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

.nav {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand img { display: block; width: 190px; height: auto; }

.nav-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

.nav-links a { color: var(--navy); font-weight: 700; text-decoration: none; }
.nav-links a:hover { text-decoration: underline; }

.hero {
  padding: 5.5rem 0;
  background: linear-gradient(135deg, #f7fbff 0%, #e9f2ff 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(240px, 0.8fr);
  align-items: center;
  gap: 3rem;
}

.eyebrow {
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1, h2, h3 { color: var(--navy); line-height: 1.2; }
h1 { margin: 0.3rem 0 1rem; font-size: clamp(2.3rem, 6vw, 4.4rem); }
h2 { margin-top: 2.25rem; font-size: clamp(1.55rem, 3vw, 2.1rem); }
h3 { margin-top: 1.6rem; }

.lead { max-width: 720px; font-size: clamp(1.05rem, 2vw, 1.3rem); color: #3d4a5c; }

.hero-mark {
  width: min(100%, 360px);
  justify-self: center;
}

.button {
  display: inline-block;
  margin-top: 1.25rem;
  padding: 0.85rem 1.25rem;
  border-radius: 0.55rem;
  background: var(--blue);
  color: var(--white);
  font-weight: 800;
  text-decoration: none;
}
.button:hover { background: var(--navy-soft); }

main .container { padding-block: 2.5rem 4rem; }
.page-intro { max-width: 820px; }
.page-intro h1 { font-size: clamp(2rem, 5vw, 3.2rem); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.card, .notice {
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  background: var(--surface);
}

.card h2, .card h3 { margin-top: 0; }
.notice { border-left: 5px solid var(--blue); }
.notice.warning { border-left-color: var(--red); }

.steps { padding-left: 1.4rem; }
.steps li { margin-bottom: 0.65rem; }

.metadata {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.35rem 1rem;
}
.metadata dt { font-weight: 800; }
.metadata dd { margin: 0; }

.site-footer {
  padding: 2.5rem 0;
  background: var(--navy);
  color: var(--white);
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
}
.site-footer img { width: 190px; height: auto; }
.site-footer a { color: var(--white); }
.site-footer p { margin: 0.35rem 0; }
.footer-links { display: flex; flex-wrap: wrap; gap: 0.8rem 1.2rem; }

@media (max-width: 760px) {
  .nav, .footer-grid { align-items: flex-start; flex-direction: column; padding-block: 1rem; }
  .hero { padding: 3.5rem 0; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-mark { max-width: 240px; }
  .card-grid { grid-template-columns: 1fr; }
  .metadata { grid-template-columns: 1fr; gap: 0; }
  .metadata dd { margin-bottom: 0.75rem; }
}

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