*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    font-family:Arial,Helvetica,sans-serif;
    background:#f4f6f9;
    color:#333;
}

.topo{
    background:#0057b8;
    color:#fff;
    text-align:center;
    padding:25px;
}

.container{
    max-width:900px;
    margin:30px auto;
    padding:20px;
}

.card{
    background:#fff;
    border-radius:12px;
    padding:25px;
    margin-bottom:25px;
    box-shadow:0 2px 10px rgba(0,0,0,.10);
}

h2{
    margin-bottom:20px;
}

label{
    display:block;
    margin-top:18px;
    margin-bottom:6px;
    font-weight:bold;
}

input,
textarea{
    width:100%;
    padding:14px;
    border:1px solid #ccc;
    border-radius:8px;
    font-size:16px;
}

textarea{
    min-height:130px;
    resize:vertical;
}

button{
    width:100%;
    margin-top:20px;
    padding:16px;
    border:none;
    border-radius:8px;
    background:#0057b8;
    color:#fff;
    font-size:18px;
    cursor:pointer;
    transition:.2s;
}

button:hover{
    background:#004494;
}

#previewQR{
    border:2px dashed #bbb;
    border-radius:10px;
    padding:30px;
    text-align:center;
}

#qrCode{
    margin:20px auto;
    width:220px;
    min-height:220px;
}

#empresaPreview{
    margin-top:20px;
    font-size:22px;
    font-weight:bold;
}

#telefonePreview{
    margin-top:8px;
    color:#666;
    font-size:17px;
}

.acoesQR{
    margin-top:25px;
}

.acoesQR button{
    margin-top:12px;
}
#certificadoSection{
    margin-top:20px;
    text-align:center;
}

#certificadoCanvas{
    width:100%;
    max-width:700px;
    height:auto;
    border:1px solid #ddd;
    border-radius:10px;
}