:root { color-scheme: light; font-family: system-ui, sans-serif; color: #17233b; background: #f5f7fc; line-height: 1.7; }
* { box-sizing: border-box; }
body { margin: 0; }
header, main, footer { max-width: 820px; margin: auto; padding: 24px; }
header { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
header img { width: 155px; height: 72px; object-fit: contain; }
main { background: white; border: 1px solid #dce2ef; border-radius: 12px; padding: 36px; }
h1, h2 { color: #05257c; line-height: 1.25; }
h1 { font-size: clamp(1.9rem, 5vw, 2.6rem); margin: 0 0 12px; }
h2 { font-size: 1.25rem; margin-top: 32px; }
a { color: #05257c; text-underline-offset: 3px; overflow-wrap: anywhere; }
a:focus-visible { outline: 3px solid #4379ed; outline-offset: 4px; }
.meta { color: #526078; font-size: .95rem; }
.intro { font-size: 1.1rem; }
.button { display: inline-block; background: #05257c; color: white; padding: 10px 18px; border-radius: 6px; }
footer nav { display: flex; flex-wrap: wrap; gap: 20px; }
@media (max-width: 600px) { main { border-radius: 0; padding: 24px; } header, footer { padding: 20px; } }
