:root { --brand:#0A1128; --accent:#D4A024; }
*{box-sizing:border-box}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif; margin:0; color:#111}
header,footer{background:var(--brand); color:#fff}
main{max-width:980px; margin:0 auto; padding:24px}
.header-inner, .footer-inner{max-width:980px; margin:0 auto; padding:16px}
nav a, footer a{color:#fff; text-decoration:none; opacity:.9}
nav a:hover, footer a:hover{opacity:1; text-decoration:underline}
.h1{font-size:32px; line-height:1.2; margin:16px 0}
.lead{color:#333; font-size:18px}
.section{margin:32px 0}
.small{font-size:14px; color:#555}
ul{padding-left:20px}
code{background:#f5f5f5; padding:2px 6px; border-radius:4px}
.notice{background:#fff7e6; border:1px solid #ffe0a6; padding:12px; border-radius:8px}