/* Simplified Material-dashboard-like CSS (light theme) */
:root{--primary:#1976d2;--bg:#f4f7fb;--card:#ffffff;--muted:#607d8b;}
body{background:var(--bg);color:#102a43;font-family:Roboto,Arial,sans-serif;}
.sidebar{width:260px;background:var(--card);position:fixed;left:0;top:0;height:100vh;border-right:1px solid #e6eef8;padding:1rem;}
.sidebar h4{color:var(--primary);text-align:center;margin-bottom:1rem;}
.sidebar a{display:block;color:var(--primary);padding:0.6rem 0.8rem;text-decoration:none;border-radius:6px;}
.sidebar a:hover{background:#eaf2ff;}
.content{margin-left:260px;padding:2rem;}
.card{background:var(--card);border-radius:10px;padding:1rem;box-shadow:0 6px 18px rgba(15,23,42,0.06);}
.navbar{background:var(--card);padding:0.6rem 1rem;border-bottom:1px solid #e6eef8;}