body{
    background:#f5f6fa;
    margin:0;
    font-family:Arial,Helvetica,sans-serif;
}

.sidebar{
    position:fixed;
    left:0;
    top:0;
    width:240px;
    height:100vh;
    background:#1d3557;
}

.sidebar h2{
    color:#fff;
    text-align:center;
    padding:20px;
    margin:0;
    border-bottom:1px solid rgba(255,255,255,.2);
}

.sidebar a{
    display:block;
    color:#fff;
    padding:14px 20px;
    text-decoration:none;
    transition:.3s;
}

.sidebar a:hover{
    background:#274c77;
}

.content{
    margin-left:240px;
    padding:30px;
}

.card{
    background:#fff;
    border-radius:12px;
    padding:25px;
    box-shadow:0 0 20px rgba(0,0,0,.08);
}

input,
select{
    width:100%;
    padding:10px;
    border:1px solid #ccc;
    border-radius:8px;
    margin-bottom:15px;
}

button{
    background:#1d3557;
    color:#fff;
    border:none;
    padding:12px 25px;
    border-radius:8px;
    cursor:pointer;
}

button:hover{
    background:#274c77;
}

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

table th{
    background:#1d3557;
    color:white;
    padding:12px;
}

table td{
    padding:10px;
    border-bottom:1px solid #ddd;
}

h2{
    margin-bottom:25px;
}