:root{--ink:#192518;--paper:#f4f1e8;--accent:#3d6b4f}
*{box-sizing:border-box}body{margin:0;font:16px/1.5 system-ui,sans-serif;background:var(--paper);color:var(--ink)}
.skip-link{position:absolute;left:-999px;top:0}.skip-link:focus{left:8px;background:#fff;padding:8px}
header{display:flex;justify-content:space-between;gap:1rem;padding:1rem 1.5rem;border-bottom:1px solid #d8d3c4}
nav{display:flex;gap:1rem;flex-wrap:wrap}main{max-width:52rem;margin:0 auto;padding:1.5rem}
section{margin:2rem 0}label{display:block;margin:0.75rem 0}input,textarea{width:100%;padding:0.5rem}
button{background:var(--accent);color:#fff;border:0;padding:0.5rem 1rem}
.banner{padding:0.75rem 1rem;background:#fff;border-left:4px solid var(--accent)}
.err{color:#8a1f11}