.riento-muted { color: var(--r-text-muted); }
.riento-secondary { color: var(--r-text-secondary); }
.riento-scroll { overflow: auto; }
.riento-nowrap { white-space: nowrap; }
.riento-truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.riento-stack { display: flex; flex-direction: column; gap: var(--r-space-3); }
.riento-row { display: flex; align-items: center; gap: var(--r-space-2); }
.riento-spacer { flex: 1; }
.riento-card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--r-space-4); }
@media (min-width: 2200px) { .riento-card-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 980px) { .riento-card-grid { grid-template-columns: 1fr; } }