:root{--fg:#111;--bg:#fff;--muted:#666;--accent:#2b6cb0;--line:#e2e2e2;--warn-bg:#fff6e5;--warn-fg:#8a5a00}*{box-sizing:border-box}body{margin:0;font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--fg);background:var(--bg)}.wrap{max-width:640px;margin:0 auto;padding:2rem 1.25rem}header{display:flex;gap:1rem;border-bottom:1px solid var(--line);padding-bottom:.75rem;margin-bottom:1.5rem}a{color:var(--accent)}.btn,button{background:var(--accent);color:#fff;border:0;padding:.6rem 1.1rem;border-radius:6px;font-size:1rem;cursor:pointer}button.danger{background:#a12622}input{width:100%;padding:.6rem;font-size:1rem;border:1px solid var(--line);border-radius:6px;margin:.25rem 0 .75rem}label{display:block;font-weight:600}.msg-ok{color:#256029}.msg-err{color:#a12622}.banner{background:var(--warn-bg);color:var(--warn-fg);padding:.75rem 1rem;border-radius:6px;margin-bottom:1rem}dl{display:grid;grid-template-columns:auto 1fr;grid-gap:.4rem 1rem;gap:.4rem 1rem}dt{color:var(--muted)}dd{margin:0;font-weight:600}fieldset{border:1px solid var(--line);border-radius:6px;margin:1rem 0}