*{
box-sizing:border-box;
}

.ip-calc-wrapper{
max-width:760px;
margin:20px auto;
padding:20px;
font-family:Arial,sans-serif;
}

.ip-calc-form,
.ip-result{
background:#f7f7f7;
padding:24px;
border-radius:14px;
margin-bottom:20px;
box-shadow:0 5px 20px rgba(0,0,0,.08);
}

label{
display:block;
font-weight:600;
margin-top:15px;
}

input{
width:100%;
padding:14px;
margin-top:6px;
border:1px solid #ccc;
border-radius:8px;
font-size:16px;
}

button{
padding:12px 18px;
border:0;
border-radius:8px;
cursor:pointer;
margin-top:15px;
}

.ip-actions{
display:flex;
gap:10px;
flex-wrap:wrap;
}

.notice{
font-size:14px;
}

.ip-dark .ip-calc-form,
.ip-dark .ip-result{
background:#222;
color:white;
}

@media(max-width:600px){
.ip-calc-wrapper{
padding:12px;
}

.ip-actions button{
width:100%;
}
}