body{font-family:Arial,sans-serif;max-width:1100px;margin:20px auto;padding:0 12px}
.card{border:1px solid #ddd;padding:12px;border-radius:8px;margin:12px 0}
input,select,textarea,button{padding:8px;margin:4px 0}
table{width:100%;border-collapse:collapse}
th,td{border:1px solid #ddd;padding:8px;font-size:14px}
.tabs a{margin-right:10px}
.small{font-size:12px;color:#666}
.error{color:#b00}