body{margin:0;background:#0f172a;color:white;font-family:Arial}
.sidebar{position:fixed;width:240px;height:100%;backdrop-filter:blur(15px);background:rgba(255,255,255,.08);padding:20px}
.content{margin-left:260px;padding:20px}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
.card{background:rgba(255,255,255,.1);padding:20px;border-radius:20px;backdrop-filter:blur(12px)}