body{
font-family: 'Segoe UI', Arial, sans-serif;
background:#f5f7fb;
margin:0;
padding:0;
}

.container{
max-width:700px;
margin:60px auto;
background:white;
padding:30px;
border-radius:12px;
box-shadow:0 10px 25px rgba(0,0,0,0.08);
}

h1{
color:#1b5e20;
margin-bottom:10px;
}

p{
color:#555;
}

label{
font-weight:600;
}

input{
width:100%;
padding:12px;
margin-top:8px;
margin-bottom:15px;
border-radius:8px;
border:1px solid #ddd;
font-size:16px;
}

button{
width:100%;
padding:14px;
background:linear-gradient(135deg,#2e7d32,#43a047);
color:white;
border:none;
border-radius:8px;
font-size:16px;
cursor:pointer;
transition:0.3s;
}

button:hover{
transform:translateY(-2px);
box-shadow:0 6px 12px rgba(0,0,0,0.1);
}

.result{
margin-top:20px;
background:#e8f5e9;
padding:15px;
border-radius:8px;
font-size:20px;
font-weight:bold;
color:#1b5e20;
text-align:center;
}