:root{--bg:#0f1724;--card:rgba(255,255,255,0.06);--glass:rgba(255,255,255,0.04);} 
body{background:linear-gradient(180deg,#0b1220 0%,#0f1724 100%);color:#e6eef8;font-family:Inter,system-ui,Segoe UI,Arial}
.app-shell{min-height:100vh}
.sidebar{width:220px;background:linear-gradient(180deg,rgba(255,255,255,0.03),rgba(255,255,255,0.02));}
.sidebar .nav-link{color:rgba(255,255,255,0.9)}
.glass{background:linear-gradient(135deg, rgba(255,255,255,0.03), rgba(255,255,255,0.02));backdrop-filter: blur(6px);border-radius:10px}
.card{border:none}
#main-content{background:transparent}
/* light mode */
body.light{background:#f6f8fa;color:#111}
body.light .sidebar{background:#0d6efd;color:#fff}
body.light .glass{background:rgba(255,255,255,0.85);color:#111}

.nav-link{display:flex;align-items:center}