body{font-family:Arial;margin:20px;min-height:100vh;display:flex;flex-direction:column}
.status{font-weight:bold;margin:10px 0}
#pdfContainer{position:relative;border:1px solid #ccc;display:inline-block}
canvas{max-width:100%;height:auto}
button{padding:10px 14px;margin:6px;font-size:15px}
button:disabled{opacity:.4}
.btn-row{display:flex;gap:8px;margin:10px 0;flex-wrap:wrap}
.signature{position:absolute;z-index:10}
.sigdate{position:absolute;font-size:10px}
#modal{display:none;position:fixed;inset:0;background:rgba(0,0,0,.7);align-items:center;justify-content:center}
#modalBox{background:#fff;padding:16px;width:90%;max-width:360px;border-radius:12px;text-align:center}
#signCanvas{border:2px dashed #bbb;border-radius:8px;background:#fafafa}
footer{margin-top:auto;padding:16px 0;text-align:center;font-size:12px;color:#666}