:root{color-scheme:light;--ink:#153c3b;--muted:#61747d;--line:#dfe4df;--gold:#c6aa6b}*{box-sizing:border-box}body{margin:0;background:#f5f5f0;color:var(--ink);font:16px/1.65 system-ui,sans-serif}main{max-width:980px;margin:0 auto;padding:32px 28px}.brand{display:flex;align-items:center;gap:20px;color:var(--ink);text-decoration:none;font:600 34px Georgia,serif}.brand span{font:11px system-ui;letter-spacing:.13em;color:var(--muted);border-left:1px solid var(--line);padding-left:20px}section{max-width:580px;padding:44px;margin:48px auto 24px;background:#fff;border:1px solid var(--line);border-radius:20px}.eyebrow{color:#8b7036;font-size:11px;font-weight:600;letter-spacing:.12em}h1{font:600 44px/1.2 system-ui,sans-serif;letter-spacing:-.025em;margin:22px 0}.intro{color:var(--muted);margin-bottom:28px}button{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:50px;padding:14px 20px;border:0;border-radius:10px;background:var(--ink);color:#fff;width:100%;font:600 16px system-ui;cursor:pointer}button:disabled{opacity:.6}button:focus-visible,summary:focus-visible,a:focus-visible{outline:3px solid var(--gold);outline-offset:4px}#message{min-height:48px;font-size:14px;color:var(--muted);margin:18px 0}details{border-top:1px solid var(--line);padding-top:20px;font-size:14px}summary{min-height:44px;cursor:pointer}.secondary{background:#edf2eb;color:var(--ink);font-size:14px}footer{color:var(--muted);font-size:13px;text-align:center;padding:20px}@media(max-width:600px){main{padding:24px 16px}.brand{font-size:30px}.brand span{font-size:9px;gap:12px}section{padding:28px 24px;margin-top:30px}h1{font-size:36px}.intro{font-size:15px}}