*
{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    font-family:Arial;
    display:flex;
    min-height:100vh;
    background: #f4f4f4;
}
.leftbar {
    width:250px;
    background-color: #2c3e50;
    color:white;
    padding:1rem;
}
.leftbar h2{
    margin-bottom: 2rem;
}
.leftbar a{
    display: block;
    color: white;
    text-decoration: none;
    margin-bottom: 1rem;
}
.left a:hover {
    text-decoration: underline;
    color: yellow;
    font-size: 1.1rem;
}
.main{
    flex-grow:1;
    padding:2rem;
}
.card{
    display:grid;
    grid-template-columns: repeat(auto-fit,minmax(200px,1fr));
    gap:1rem;
}
.card{
    background: white;
    padding:1.5rem;
    border-radius:8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
.card h3{
    margin-bottom:0.5rem;
}
table{
    width:100%;
    border-collapse:collapse;
    margin-top:2rem;
}
table th,table td{
    padding:0.75rem;
    text-align:lefyt;
    border-bottom:1px solid #ccc;
}
table th{
    background-color: #ecf0f1;
}