/* Burbuja */
#fdc-bubble{position:fixed;right:18px;bottom:18px;width:56px;height:56px;border-radius:50%;
background:#2563eb;color:#fff;display:flex;align-items:center;justify-content:center;
box-shadow:0 10px 20px rgba(0,0,0,.2);cursor:pointer;z-index:2147483000}
#fdc-bubble:hover{filter:brightness(1.05)}
#fdc-badge{position:absolute;top:-6px;right:-6px;background:#ef4444;color:#fff;border-radius:999px;padding:2px 6px;font:700 11px/1 system-ui}

/* Panel */
#fdc-panel{position:fixed;right:18px;bottom:84px;max-height:80vh;width:360px;background:#fff;border-radius:14px;
box-shadow:0 20px 40px rgba(0,0,0,.2);display:none;overflow:hidden;z-index:2147483000}
@media (min-width:992px){#fdc-panel{width:760px;}}
.fdc-header{background:#1f2937;color:#fff;padding:10px 12px;display:flex;align-items:center;gap:8px}
.fdc-header strong{font-size:14px}
.fdc-container{display:flex;height:520px}
.fdc-list{width:280px;border-right:1px solid #eceff4;overflow:auto}
.fdc-list-item{padding:10px 12px;border-bottom:1px solid #f1f5f9;cursor:pointer;display:flex;justify-content:space-between;gap:8px}
.fdc-list-item:hover{background:#f8fafc}
.fdc-list-item .unread{background:#ef4444;color:#fff;border-radius:999px;padding:2px 6px;font:700 11px/1 system-ui}
.fdc-chat{flex:1;display:flex;flex-direction:column}
.fdc-msgs{flex:1;overflow:auto;background:#f8fafc;padding:10px}
.fdc-msg{max-width:78%;margin:4px 0;padding:8px 10px;border-radius:12px;background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.05)}
.fdc-me{margin-left:auto;background:#dbeafe}
.fdc-time{color:#6b7280;font-size:11px;margin-top:2px}
.fdc-input{display:flex;gap:8px;padding:8px;border-top:1px solid #e5e7eb;background:#fff}
.fdc-input textarea{flex:1;resize:none;height:42px;border:1px solid #d1d5db;border-radius:8px;padding:8px;font-size:14px}
.fdc-input input[type=file]{display:none}
.fdc-btn{background:#2563eb;color:#fff;border:none;border-radius:8px;padding:0 12px;height:42px}
.fdc-attach{background:#6b7280}
.fdc-empty{padding:16px;color:#9ca3af;font-size:14px}