body{margin:0;font-family:Poppins,Arial;background:#f2f6ff}
header{background:linear-gradient(90deg,#003366,#0059b3);color:white;padding:15px 30px;display:flex;justify-content:space-between;align-items:center}
nav a{color:white;text-decoration:none;margin-left:15px}
.container{max-width:900px;margin:40px auto;background:white;padding:30px;border-radius:15px;box-shadow:0 10px 20px rgba(0,0,0,.1)}
input,select,button{width:100%;padding:10px;margin-bottom:15px;border-radius:8px;border:1px solid #ccc}
button{background:#003366;color:white;border:none;cursor:pointer}
table{width:100%;border-collapse:collapse}
th,td{text-align:center;padding:12px}
th{background:#003366;color:white}