body{margin:0;font-family:system-ui;background:#0b0f17;color:#e5e7eb}
.shell{display:grid;grid-template-columns:260px 1fr;min-height:100vh}
.sidebar{background:#0f172a;padding:20px;border-right:1px solid rgba(255,255,255,.08)}
.sidebar h1{font-size:14px;margin:0 0 20px}
.nav a{display:block;padding:10px 12px;margin-bottom:6px;border-radius:10px;background:rgba(255,255,255,.03)}
.nav a:hover{background:rgba(168,85,247,.2)}
.main{padding:24px}
.card{background:rgba(255,255,255,.05);padding:16px;border-radius:14px;margin-bottom:16px}
.btn{padding:10px 12px;border-radius:10px;background:#a855f7;color:white;border:none;cursor:pointer}
input{padding:10px;border-radius:10px;border:1px solid rgba(255,255,255,.1);background:#0b0f17;color:white;width:100%}