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

body{
background:#f4f6f9;
padding:30px;
}

.container{
max-width:1000px;
margin:auto;
background:white;
padding:25px;
border-radius:10px;
box-shadow:0 0 10px rgba(0,0,0,0.1);
}

h1{
text-align:center;
margin-bottom:20px;
}

.input-section{
display:grid;
grid-template-columns:1fr 1fr 1fr 1fr auto;
gap:10px;
margin-bottom:20px;
}

.input-section input{
padding:10px;
border:1px solid #ccc;
border-radius:5px;
}

button{
padding:10px 15px;
border:none;
border-radius:5px;
background:#007bff;
color:white;
cursor:pointer;
}

button:hover{
background:#0056b3;
}

table{
width:100%;
border-collapse:collapse;
margin-top:15px;
}

th, td{
border:1px solid #ddd;
padding:10px;
text-align:center;
}

th{
background:#f1f1f1;
}

.summary{
margin-top:20px;
text-align:right;
}

.summary h2{
margin-top:10px;
color:#2c3e50;
}

.actions{
margin-top:20px;
text-align:center;
}

.actions button{
margin:5px;
}

@media(max-width:768px){

.input-section{
grid-template-columns:1fr 1fr;
}

}