body{background:#f5f7fb;font-family:Segoe UI,Arial,sans-serif;font-size:14px}.card{border:0;border-radius:12px;box-shadow:0 2px 10px #00000012}.navbar{box-shadow:0 2px 8px #00000015}.table thead th{white-space:nowrap}.pointer{cursor:pointer}.login-wrap{min-height:100vh}.stat{cursor:pointer}.qr-img{width:48px;height:48px;min-width:48px;min-height:48px;object-fit:contain;display:inline-block;background:#fff;padding:2px;border:1px solid #ddd;border-radius:4px}.sidebar{width:240px;min-height:calc(100vh - 58px);background:#fff;border-right:1px solid #eee;position:sticky;top:58px;align-self:flex-start}.app-layout{display:flex;min-height:calc(100vh - 58px)}.main-content{flex:1;min-width:0}.sidebar .list-group-item{border:0;border-radius:8px;margin-bottom:3px}.sidebar .list-group-item:hover{background:#f0f5ff}.modal-header.bg-primary{border-radius:12px 12px 0 0}@media(max-width:991px){.sidebar{width:100%;min-height:auto;position:static}.app-layout{display:block}.main-content{padding-bottom:30px}}