:root{--epno-blue:#0b3a78;--epno-orange:#f59e0b;}
.app-shell{display:flex;min-height:calc(100vh - 56px);}
.app-sidebar{width:260px;flex:0 0 auto;}
.app-content{flex:1;}
.bg-gradient-primary{background:linear-gradient(180deg,var(--epno-blue),#0a2f63);}
.sidebar-link{background:transparent;color:rgba(255,255,255,.92);border:none;padding:.85rem 1rem;}
.sidebar-link:hover{background:rgba(255,255,255,.08);color:#fff;}
.navbar-brand .brand-epno{font-size:1.2rem;color:var(--epno-blue);letter-spacing:.2px;}
.navbar-brand .brand-support{font-size:.95rem;color:var(--epno-orange);font-weight:700;margin-top:2px;}
.card{border:0;box-shadow:0 10px 25px rgba(16,24,40,.06);}
.badge-status-open{background:#16a34a;}
.badge-status-in_progress{background:#f59e0b;}
.badge-status-closed{background:#64748b;}