:root{--sidebar:240px}body{background:#f5f6f8}.app-shell{display:flex;min-height:calc(100vh - 56px)}.sidebar{width:var(--sidebar);background:#fff;border-right:1px solid #e7e9ed;padding:18px 12px}.sidebar .nav-link{color:#343a40;border-radius:8px;padding:10px 12px;margin-bottom:3px}.sidebar .nav-link.active,.sidebar .nav-link:hover{background:#eef3ff;color:#0d6efd}.menu-title{font-size:.72rem;text-transform:uppercase;color:#8a9099;font-weight:700;margin:18px 12px 7px}.app-content{flex:1;padding:28px;min-width:0}.metric{border:0;box-shadow:0 2px 10px #0000000c}.metric span{display:block;color:#6c757d}.metric strong{display:block;font-size:2rem;margin-top:8px}.login-page{min-height:100vh;display:grid;place-items:center;background:#eef1f5;padding:20px}.login-card{width:min(430px,100%)}@media(max-width:768px){.sidebar{display:none}.app-content{padding:18px}}