body { background:#f5f7fb; }
.sidebar { min-height:calc(100vh - 56px); background:#fff; border-right:1px solid #e5e7eb; }
.sidebar a { display:block; padding:.55rem .25rem; color:#334155; text-decoration:none; }
.sidebar a:hover { color:#0d6efd; }
.card { border:0; box-shadow:0 2px 12px rgba(0,0,0,.05); }
.setup-step { border-left:4px solid #0d6efd; }