body{
margin:0;
font-family:Arial,sans-serif;
background:#f5f7fa;
}

header{
background:#004d40;
color:white;
text-align:center;
padding:30px;
}

main{
width:90%;
max-width:1200px;
margin:auto;
padding:20px;
}

section{
background:white;
padding:20px;
margin-bottom:20px;
border-radius:10px;
}

.metrics{
display:grid;
grid-template-columns:repeat(4,1fr);
gap:20px;
background:transparent;
padding:0;
}

.card{
background:white;
padding:20px;
text-align:center;
border-radius:10px;
}

.card p{
font-size:28px;
font-weight:bold;
}

input,
textarea,
select{
width:100%;
padding:12px;
margin:8px 0;
border:1px solid #ccc;
border-radius:6px;
}

button{
background:#004d40;
color:white;
padding:12px 18px;
border:none;
border-radius:6px;
cursor:pointer;
}

table{
width:100%;
border-collapse:collapse;
}

th{
background:#004d40;
color:white;
padding:12px;
}

td{
padding:12px;
border-bottom:1px solid #ddd;
text-align:center;
}

.status-open{
color:#1565c0;
font-weight:bold;
}

.status-progress{
color:#ef6c00;
font-weight:bold;
}

.status-closed{
color:green;
font-weight:bold;
}

footer{
background:#004d40;
color:white;
text-align:center;
padding:15px;
}