:root { color-scheme: light; font-family: Arial, Helvetica, sans-serif; color: #263445; background: #fff; line-height: 1.7; }
* { box-sizing: border-box; }
body { margin: 0; }
a { color: #002147; text-underline-offset: .2em; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid #d48b00; outline-offset: 4px; }
.site-header { background: #002147; color: #fff; }
.site-header nav { max-width: 1152px; margin: auto; padding: 1rem 1.5rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.site-header a { color: #fff; }
.site-header nav div { display: flex; align-items: center; flex-wrap: wrap; gap: 1.25rem; }
.brand { font-size: 1.5rem; font-weight: 800; text-decoration: none; }
main { max-width: 900px; padding: 3.5rem 1.5rem; margin: auto; }
h1, h2 { color: #002147; line-height: 1.2; text-wrap: balance; }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); margin: .75rem 0 1.5rem; }
h2 { font-size: 1.6rem; margin: 0 0 1rem; }
p { margin: 0 0 1rem; }
.eyebrow { font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; }
.intro { font-size: 1.2rem; }
.bridge, .contents, .next-step { background: #f2f5f8; padding: 1.5rem; border-radius: .6rem; }
.byline { color: #586677; font-size: .9rem; }
.plan-note { font-size: .95rem; color: #435366; border-left: 3px solid #b6c7d8; padding-left: 1rem; }
h3 { color: #002147; line-height: 1.4; margin: 1.5rem 0 .75rem; font-size: 1.15rem; }
.contents { margin: 2rem 0; }
.contents h2 { font-size: 1.1rem; }
section, .related { margin-top: 2.5rem; scroll-margin-top: 1rem; }
li { padding-left: .25rem; margin: .5rem 0; }
ul, ol { padding-left: 1.5rem; }
.actions { display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
.button { display: inline-block; padding: .7rem 1rem; border-radius: .35rem; background: #002147; color: #fff; font-weight: 700; text-decoration: none; }
.site-header .light { background: #fff; color: #002147; }
footer { background: #f2f5f8; padding: 2rem 1.5rem; text-align: center; }
.skip-link { position: absolute; left: 1rem; top: -100px; padding: .5rem; background: white; z-index: 1; }
.skip-link:focus { top: 1rem; }
@media (max-width: 480px) { main { padding-top: 2rem; } .site-header nav div { gap: .8rem; font-size: .9rem; } .bridge, .contents, .next-step { padding: 1.1rem; } }