:root { color-scheme: light; font-family: Verdana, Arial, sans-serif; color: #202633; background: #f3f5f8; }
* { box-sizing: border-box; }
body { margin: 0; min-width: 280px; }
a { color: #234f96; }
a:focus-visible { outline: 3px solid #fbdb19; outline-offset: 3px; }
.site-header { background: #034c85 url('/header_background.png') center top / auto 84px repeat-x; border-bottom: 5px solid #080b11; }
.header-inner { max-width: 1100px; min-height: 84px; margin: auto; padding: 18px 18px 12px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.brand { display: block; flex: none; }
.brand img { display: block; max-width: 100%; height: auto; }
nav { display: flex; flex-wrap: wrap; gap: 6px 20px; align-items: center; }
nav a { color: #fff; font-size: 14px; font-weight: 700; text-decoration: none; }
nav a:hover, nav a[aria-current='page'] { color: #ffdf23; text-decoration: underline; text-underline-offset: 4px; }
main { max-width: 900px; margin: 0 auto; padding: 24px 16px 48px; }
.chat-status { min-height: 280px; padding: 45px 28px; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; background: #fff; border: 1px solid #d8dee8; box-shadow: 0 8px 30px #152b4310; }
.chat-status h1 { margin: 18px 0 8px; font-size: clamp(23px, 4vw, 34px); line-height: 1.2; }
.chat-status p { max-width: 560px; margin: 0; font-size: 15px; line-height: 1.6; }
.status-tag { display: inline-block; padding: 5px 9px; background: #0a3a69; color: #fff; border-radius: 4px; font-size: 12px; font-weight: 700; }
.archive-copy { margin-top: 24px; padding: 22px 28px; background: #fff; border: 1px solid #e0e5ed; font-size: 14px; line-height: 1.65; }
.archive-note { padding: 8px 11px; border-left: 3px solid #0a4e85; background: #eef4fa; color: #435263; font-size: 12px; }
.archive-copy h1, .archive-copy h2 { line-height: 1.3; color: #1b344e; }
.archive-copy h1 { font-size: 22px; }
.archive-copy h2 { font-size: 18px; margin-top: 1.4em; }
.archive-copy p { margin: 0 0 1em; }
.archive-copy ul { padding-left: 25px; }
footer { border-top: 1px solid #d7dce4; color: #5d6878; font-size: 12px; }
.footer-inner { max-width: 900px; margin: auto; padding: 16px; }
@media (max-width: 680px) {
  .header-inner { align-items: flex-start; flex-direction: column; gap: 12px; }
  .brand img { width: min(341px, 85vw); }
  nav { gap: 8px 18px; }
  main { padding: 12px 8px 32px; }
  .chat-status { min-height: 250px; padding: 25px 16px; }
  .archive-copy { margin-top: 12px; padding: 18px 16px; }
}