body{font-family:Arial;background:#eef2f7;margin:0}
.nav{background:#1e293b;color:#fff;padding:15px;display:flex;justify-content:space-between}
.nav a{color:#fff;margin-left:15px;text-decoration:none}
.container{padding:20px}
.card{background:#fff;padding:20px;border-radius:10px;box-shadow:0 2px 10px rgba(0,0,0,.1)}
input,select,button{width:100%;padding:10px;margin:8px 0}
button{background:#2563eb;color:#fff;border:none;border-radius:5px}
table{width:100%;border-collapse:collapse;background:#fff}
th,td{padding:10px;border-bottom:1px solid #ddd}