* { box-sizing: border-box; }
body { margin: 0; color: #173047; background: #f5f8fa; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-size: 17px; line-height: 1.65; }
a { color: #075c8c; text-underline-offset: .18em; overflow-wrap: anywhere; }
a:focus-visible { outline: 3px solid #d78820; outline-offset: 4px; }
header { color: white; background: #15384c; }
header a { color: white; }
header nav, main, footer { max-width: 850px; margin: auto; padding: 24px; }
header nav { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; }
main { background: white; margin-top: 24px; border-radius: 12px; padding: 32px; }
h1 { font-size: clamp(1.8rem, 5vw, 2.6rem); line-height: 1.2; margin: 0 0 16px; }
h2 { font-size: 1.3rem; margin-top: 32px; line-height: 1.3; }
p { margin: 12px 0; }
.date { color: #5a6d79; font-size: .9rem; }
footer { display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; font-size: .9rem; }
@media (max-width: 600px) { main { margin: 12px; padding: 22px; } header nav, footer { padding: 18px; } }
@media (prefers-color-scheme: dark) { body { background: #111b24; color: #e7eef3; } main { background: #1b2934; } a { color: #8dd2ff; } .date { color: #b2c3ce; } }