body{margin:0;font-family:Arial;background:#f4f6f9;}
.sidebar{width:220px;height:100vh;position:fixed;background:#0d6efd;color:white;padding-top:20px;}
.sidebar a{display:block;color:white;padding:12px 20px;text-decoration:none;}
.sidebar a:hover{background:#084298;}
.content{margin-left:220px;padding:20px;}
.card{background:white;padding:20px;margin-bottom:20px;border-radius:8px;box-shadow:0 2px 8px rgba(0,0,0,0.1);}
input,select{width:100%;padding:8px;margin:5px 0;}
button{background:#0d6efd;color:white;border:none;padding:8px 15px;border-radius:5px;}