html {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  color: #203047;
  background: #f3f6fb;
  line-height: 1.6;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
}

a {
  color: #2457a6;
  text-decoration: none;
}

a:focus-visible {
  outline: 3px solid #2457a6;
  outline-offset: 5px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -5rem;
  padding: 0.75rem 1rem;
  background: #fff;
  z-index: 1;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  background: #fff;
  border-bottom: 1px solid #dfe6f0;
}

.site-nav,
.page-content,
.site-footer {
  width: min(1120px, calc(100% - 3rem));
  margin-inline: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1.25rem;
}

.brand {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: #203047;
}

.brand span {
  display: block;
  color: #58677d;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.nav-link {
  padding: 0.5rem 1rem;
  border-radius: 8px;
  background: #eaf0fb;
  font-size: 0.9rem;
  font-weight: 600;
}

.nav-link:hover {
  background: #dce7f9;
}

.page-content {
  flex: 1;
  padding-block: clamp(2.5rem, 8vw, 7rem);
}

.welcome {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 320px);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.eyebrow {
  margin: 0 0 1rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #2457a6;
}

h1 {
  margin: 0;
  max-width: 14ch;
  font-size: clamp(2.25rem, 5vw, 4rem);
  line-height: 1.12;
  letter-spacing: -0.045em;
}

.welcome-description {
  max-width: 48ch;
  margin: 1.5rem 0 0;
  color: #58677d;
  font-size: 1.1rem;
}

.version-card {
  padding: 2rem;
  border: 1px solid #dfe6f0;
  border-top: 4px solid #2457a6;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 16px 40px rgb(32 48 71 / 6%);
}

.version-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 12px;
  background: #eaf0fb;
  color: #2457a6;
  font-weight: 800;
}

.version-card h2 {
  margin: 1.5rem 0 0.5rem;
  font-size: 1rem;
}

.version-number {
  margin: 0;
  color: #2457a6;
  font-size: 1.75rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.version-description,
.site-footer {
  color: #58677d;
  font-size: 0.85rem;
}

.version-description {
  margin: 0.5rem 0 0;
}

.site-footer {
  padding-block: 1.5rem;
  border-top: 1px solid #dfe6f0;
}

@media (max-width: 640px) {
  .welcome {
    grid-template-columns: 1fr;
  }

  .version-card {
    padding: 1.5rem;
  }
}