.sandbox-toolbar { grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, .7fr); gap: 18px; }
.sandbox-card__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; justify-content: space-between; }
.sandbox-card__meta .tag { background: var(--lime); }
.sandbox-card h3 { margin-bottom: 10px; }
.sandbox-card__course { margin: 0 0 16px; color: var(--teal); font-size: 12px; font-weight: 800; }
.sandbox-card__description { margin: 0 0 24px; font-size: 14px; }
.sandbox-note { margin: 0 0 28px; padding: 18px 22px; border-left: 4px solid var(--teal); background: var(--paper-raised); font-size: 14px; }
@media (max-width: 900px) { .sandbox-toolbar { grid-template-columns: 1fr; } }