.acu-wrap{border:1px solid #ddd;border-radius:8px;padding:16px;max-width:720px;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
.acu-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.acu-count-pill{padding:2px 8px;border-radius:999px;background:#f3f3f3}
.acu-fieldrow{margin-bottom:8px}
.acu-role-row{display:flex;gap:12px;align-items:center;margin:6px 0}
.acu-form input[type=text],.acu-form input[type=password],.acu-input{width:100%;padding:8px;border-radius:6px;border:1px solid #ccc}
.acu-actions{display:flex;gap:8px;margin-bottom:8px}
.acu-actions .acu-disconnect-btn{padding:8px 12px;border-radius:6px;border:1px solid #ccc;background:#fafafa;cursor:pointer}
.acu-users{list-style:none;margin:0;padding:0}
.acu-users li{display:grid;grid-template-columns:32px 1fr auto;gap:8px;align-items:center;border:1px solid #eee;border-radius:6px;padding:6px 8px;margin-bottom:6px}
.acu-avatar{width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#eee}
.acu-empty{opacity:.7;font-style:italic;grid-column:1/-1}
.acu-connected .acu-form{display:none}
.acu-auth-error{color:#c00;font-size:12px;margin:6px 0}
/* Chat */
.acu-chat{border-top:1px solid #eee;margin-top:12px;padding-top:12px}
.acu-messages,.acu-staff-messages{max-height:260px;overflow:auto;padding:6px;background:#fafafa;border:1px solid #eee;border-radius:6px}
.acu-messages-list,.acu-staff-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.acu-input-row{display:flex;gap:8px;margin-top:8px}
.acu-send-btn{padding:8px 10px;border:1px solid #ccc;border-radius:6px;background:#f5f5f5;cursor:pointer}
@media(max-width:520px){.acu-input-row{flex-direction:column}.acu-send-btn{width:100%}}