body { font-family: sans-serif; max-width: 500px; margin: 40px auto; }
table { width: 100%; border-collapse: collapse; }
td { padding: 10px; border-bottom: 1px solid #ddd; }
button { padding: 8px 14px; cursor: pointer; }
button.danger { background: #c0392b; color: white; border: none; }
.msg { padding: 8px; border-radius: 4px; }
.msg.success { background: #d4edda; }
.msg.error { background: #f8d7da; }