body{background:#f8f9fa;color:#212529}.card{background:#fff}

/* Sidebar */
aside {
  width: 260px;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 1030;
}

/* Topbar */
.navbar-top {
  position: fixed;
  top: 0;
  left: 260px; /* počinje odmah desno od sidebara */
  right: 0;
  height: 70px;
  z-index: 1040;
}

/* Glavni sadržaj */
main {
  margin-left: 260px;   /* širina sidebar-a */
  padding-top: 80px;    /* visina topbar-a */
  min-height: calc(100vh - 70px);
  background: #f8f9fa;
}