:root { --brand:#0066cc; }
#sidebar .list-group-item.active{ background:var(--brand); border-color:var(--brand); }
#timeWidget{ bottom:16px; left:16px; border-radius:1rem; }
.chat-bubble{ max-width:70%; padding:.5rem .75rem; border-radius:1rem; margin-bottom:.5rem; }
.chat-bubble.sent{ background:#e7f1ff; margin-left:auto; border:1px solid #bcd4ff; }
.chat-bubble.recv{ background:#fff; border:1px solid #e2e3e5; }
.chat-bubble.system{ background:#fffbe6; border:1px solid #ffe58f; margin:0 auto; }
.chat-container{ height:50vh; overflow:auto; border:1px solid #e9ecef; padding:1rem; border-radius:.75rem; background:#f8f9fa; }
.badge-status-open{ background:#ffc107; }
.badge-status-progress{ background:#0d6efd; }
.badge-status-waiting{ background:#6c757d; }
.badge-status-wait_customer{ background:#fd7e14; }
.badge-status-approved{ background:#198754; }
.badge-status-closed{ background:#0b5d1e; }