body{background:#f4f8fb;font-family:Arial}
.sidebar{min-height:100vh;background:#063970;color:white;padding:20px}
.sidebar a{display:block;color:white;text-decoration:none;padding:10px}
.card-box{background:white;border-radius:15px;padding:25px;margin:10px;box-shadow:0 5px 20px #ddd}
.header{background:#0d6efd;color:white;padding:20px}
table{background:white}