body{font-family:Arial,Helvetica,sans-serif;background:#f4f6f9;color:#333;margin:0}
.container{max-width:980px;margin:30px auto;background:#fff;padding:20px;border-radius:8px;box-shadow:0 4px 14px rgba(0,0,0,.06)}
header{display:flex;justify-content:space-between;align-items:center}
nav a{margin-right:10px;color:#0066cc;text-decoration:none}
table{width:100%;border-collapse:collapse}
table th,table td{padding:8px;border:1px solid #eee}
.btn{display:inline-block;padding:8px 12px;background:#0066cc;color:#fff;border-radius:6px;text-decoration:none}
.muted{color:#777;font-size:13px}
form input, form select{padding:8px;width:100%;margin-bottom:8px}
.topbar{background:#0b5ed7;color:#fff;padding:10px;border-radius:6px;margin-bottom:20px}
.card{padding:12px;border:1px solid #eee;border-radius:8px;margin-bottom:12px}