body{font-family:Arial,Helvetica,sans-serif;background:#f5f7fb;color:#222}
.container{width:720px;margin:40px auto;padding:20px;background:#fff;border-radius:8px;box-shadow:0 6px 18px rgba(0,0,0,0.06)}
input,select,button{display:block;width:100%;padding:10px;margin:8px 0;border:1px solid #ddd;border-radius:6px}
button{cursor:pointer;background:#0069d9;color:#fff;border:none}
.table{width:100%;border-collapse:collapse;margin-top:10px}
.table th,.table td{padding:8px;border:1px solid #eee;text-align:left}
.topbar{display:flex;justify-content:space-between;align-items:center}
a.btn{display:inline-block;padding:8px 12px;background:#28a745;color:#fff;border-radius:6px;text-decoration:none;margin:4px 0}
.error{color:#b00020}
.small{font-size:13px;color:#666}