/* vsbl-professor-chat 1.0.0 — silver-white panel, black ink, crimson actions */
.vsbl-prof-launch{position:fixed;right:18px;bottom:18px;z-index:99990;background:#0B0B0C;color:#fff;border:2px solid #9E1B32;border-radius:24px;padding:11px 18px;font:700 14px/1 'Barlow',Arial,sans-serif;letter-spacing:.4px;cursor:pointer;box-shadow:0 6px 20px rgba(0,0,0,.25)}
.vsbl-prof-launch:hover,.vsbl-prof-launch.on{background:#9E1B32}
.vsbl-prof-panel{position:fixed;right:18px;bottom:72px;z-index:99991;width:380px;max-width:calc(100vw - 32px);height:560px;max-height:calc(100vh - 100px);display:flex;flex-direction:column;background:#F2F4F6;color:#0B0B0C;border:1px solid #D5D9DE;border-radius:12px;box-shadow:0 12px 40px rgba(0,0,0,.28);font-family:'Barlow',Arial,sans-serif;overflow:hidden}
.vsbl-prof-panel[hidden]{display:none}
.vsbl-prof-head{position:relative;background:#0B0B0C;color:#fff;padding:14px 44px 12px 16px}
.vsbl-prof-title{font:700 17px/1.2 'Barlow Condensed','Barlow',Arial,sans-serif;letter-spacing:.4px;color:#fff}
.vsbl-prof-sub{font-size:12px;color:#C9CED4;margin-top:2px}
.vsbl-prof-x{position:absolute;right:10px;top:8px;background:none;border:none;color:#fff;font-size:24px;line-height:1;cursor:pointer;padding:4px 8px}
.vsbl-prof-chips{display:flex;flex-wrap:wrap;gap:6px;padding:10px 12px 0}
.vsbl-prof-chips[hidden]{display:none}
.vsbl-prof-chip{background:#fff;border:1px solid #D5D9DE;border-radius:14px;padding:6px 10px;font:600 12px/1.2 'Barlow',Arial,sans-serif;color:#0B0B0C;cursor:pointer}
.vsbl-prof-chip:hover{border-color:#9E1B32;color:#9E1B32}
.vsbl-prof-log{flex:1;overflow-y:auto;padding:12px}
.vsbl-prof-msg{max-width:92%;margin:0 0 10px;padding:9px 12px;border-radius:10px;font-size:14px;line-height:1.45}
.vsbl-prof-msg p{margin:0 0 6px}.vsbl-prof-msg p:last-of-type{margin-bottom:0}
.vsbl-prof-msg.prof{background:#fff;border:1px solid #E1E4E8}
.vsbl-prof-msg.me{background:#0B0B0C;color:#fff;margin-left:auto}
.vsbl-prof-msg.wait{color:#7A746C}
.vsbl-prof-fix{display:block;width:100%;text-align:left;margin-top:8px;background:#fff;border:1.5px solid #9E1B32;color:#9E1B32;border-radius:6px;padding:7px 10px;font:700 12px/1.3 'Barlow',Arial,sans-serif;cursor:pointer}
.vsbl-prof-fix:hover{background:#9E1B32;color:#fff}
.vsbl-prof-fix:disabled{background:#0B0B0C;border-color:#0B0B0C;color:#fff;cursor:default}
.vsbl-prof-btn{display:inline-block;margin-top:8px;background:#9E1B32;color:#fff!important;border:none;border-radius:6px;padding:8px 14px;font:700 12.5px/1.2 'Barlow',Arial,sans-serif;letter-spacing:.3px;cursor:pointer;text-decoration:none!important}
.vsbl-prof-btn:hover{background:#7A1426}
.vsbl-prof-btn.ghost{background:#fff;color:#0B0B0C!important;border:1px solid #0B0B0C;margin-left:0}
.vsbl-prof-btn:disabled{opacity:.6;cursor:default}
.vsbl-prof-form{display:flex;gap:8px;padding:10px 12px;border-top:1px solid #D5D9DE;background:#fff}
.vsbl-prof-form textarea{flex:1;resize:none;border:1px solid #D5D9DE;border-radius:8px;padding:8px 10px;font:16px/1.35 'Barlow',Arial,sans-serif;color:#0B0B0C;background:#fff}
.vsbl-prof-form .vsbl-prof-btn{margin-top:0;align-self:flex-end}
.vsbl-prof-foot{padding:6px 12px 10px;font-size:11.5px;color:#5A6068;background:#fff}
.vsbl-prof-link{background:none;border:none;padding:0;color:#9E1B32;font:700 11.5px/1.2 'Barlow',Arial,sans-serif;cursor:pointer;text-decoration:underline}
.vsbl-prof-ex select,.vsbl-prof-ex input{display:block;width:100%;box-sizing:border-box;margin:6px 0;padding:8px 10px;border:1px solid #D5D9DE;border-radius:6px;font:16px 'Barlow',Arial,sans-serif;background:#fff;color:#0B0B0C}
.vsbl-prof-ex .vsbl-prof-hp{position:absolute;left:-9999px;width:1px;height:1px}
.vsbl-prof-inline{display:inline-block;margin-top:6px;background:#fff;border:1.5px solid #9E1B32;color:#9E1B32;border-radius:5px;padding:4px 9px;font:700 11.5px/1.2 'Barlow',Arial,sans-serif;cursor:pointer}
.vsbl-prof-inline:hover{background:#9E1B32;color:#fff}
.vsbl-prof-rerun{display:block}
@media(max-width:560px){
.vsbl-prof-launch{right:12px;bottom:12px}
.vsbl-prof-panel{right:0;left:0;bottom:0;width:100%;max-width:100%;height:82vh;max-height:82vh;border-radius:12px 12px 0 0}
}
@media print{.vsbl-prof-launch,.vsbl-prof-panel,.vsbl-prof-inline{display:none!important}}