.rng-container{

max-width:600px;
margin:40px auto;
padding:30px;
background:#ffffff;
border-radius:12px;
box-shadow:0 8px 20px rgba(0,0,0,0.08);
text-align:center;
font-family:Arial;

}

.rng-container h2{

margin-bottom:25px;
font-size:28px;

}

.rng-inputs{

margin-bottom:20px;

}

.rng-inputs input{

width:120px;
padding:10px;
margin:10px;
border-radius:6px;
border:1px solid #ddd;

}

.rng-inputs button{

padding:10px 20px;
background:#2e7dff;
color:white;
border:none;
border-radius:6px;
cursor:pointer;

}

.rng-inputs button:hover{

background:#1c63d6;

}

.rng-result{

margin-top:20px;
font-size:22px;
font-weight:bold;

}

@media(max-width:600px){

.rng-inputs input{

width:90px;

}

}