:root{--bg:#f5f1e8;--card:#ffffff;--text:#2c2c2c;--muted:#6b6b6b;--primary:#2f6b3f;--accent:#c9a227;--border:#e5e0d4}*{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--primary)}.shell{max-width:560px;margin:0 auto;padding:64px 24px;text-align:center}.shell h1{font-size:28px;margin:0 0 8px;letter-spacing:.5px}.shell .sub{color:var(--muted);margin:0 0 32px}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:28px 24px;text-align:left}.btn{display:inline-flex;align-items:center;gap:10px;background:#fff;color:#2c2c2c;border:1px solid var(--border);border-radius:8px;padding:12px 18px;font-size:15px;font-weight:500;cursor:pointer;text-decoration:none;transition:border-color .15s,box-shadow .15s}.btn:hover{border-color:#c8c2b3;box-shadow:0 1px 3px rgba(0,0,0,.05)}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover{background:#285832;border-color:#285832}.muted{color:var(--muted);font-size:14px}.packet-frame{position:fixed;inset:0;width:100vw;height:100vh;border:0}