:root{ --gold:#d4af37; --navy:#002147; }
body{background:#f1f5fb;font-family:Segoe UI,Roboto,Arial,sans-serif}
.app-header{background:var(--navy);color:white;padding:12px 18px;display:flex;align-items:center;gap:12px}
.app-header h4{margin:0}
.app-sidebar{width:240px;background:var(--navy);color:white;min-height:100vh}
.app-sidebar .nav-link{color:rgba(255,255,255,0.9)}
.app-sidebar .nav-link:hover, .app-sidebar .nav-link.active{background:var(--gold);color:var(--navy);border-radius:4px}
.app-main{flex:1;background:#fff;padding:18px;min-height:80vh}
.app-footer{background:#0d2a4a;color:var(--gold);padding:8px;text-align:center}
.table-responsive{max-height:60vh;overflow:auto}
.btn-success{background:var(--gold);border-color:var(--gold);color:#002147}