:root{--navy:#0b2a5b;--blue:#1f5fd1;--bg:#f4f7fc}
body{background:var(--bg);font-size:1rem}
.app-nav{background:var(--navy)}
.side-nav{background:#fff;min-height:calc(100vh - 56px);border-right:1px solid #e2e8f2}
.btn-primary{background:var(--blue);border-color:var(--blue);min-height:44px}
.btn{min-height:38px}
.stat-card{border:0;box-shadow:0 1px 3px rgba(11,42,91,.12)}
@media (max-width:767px){.side-nav{min-height:0;width:100%}.side-nav .list-group{flex-direction:row;overflow-x:auto}}
.side-nav .list-group-item{border:0;padding:.8rem 1rem;white-space:nowrap}
.side-nav .list-group-item.active{background:#e8f0ff;color:var(--navy);font-weight:600;border-left:4px solid var(--blue)}
.avatar{width:96px;height:96px;object-fit:cover;border-radius:50%;border:2px solid #dbe4f3}