#signature { border: 2px dashed #ccc; border-radius: 8px; background-color: #fff; padding: 10px; width: 520px; height: 320px; box-shadow: 0 2px 8px rgba(0,0,0,0.05); }
#signature canvas { width:500px !important; height: 300px !important; border: none; }
#clear-signature { margin-top: 10px; padding: 8px 16px; font-size: 14px; background-color: #f44336; color: #fff; border: none; border-radius: 5px; cursor: pointer; }
#clear-signature:hover { background-color: #d32f2f; }