/* Shared course activities use the same tokens and fonts as the H5P frame. */
body { color: var(--al-ink); font-family: Inter, system-ui, sans-serif; }
.al-activity { box-sizing: border-box; max-width: 1060px; margin: 0 auto; padding: 24px; }
.al-activity *, .al-drag-preview { box-sizing: border-box; }
.al-activity ::selection { background: var(--al-rose-tint); color: var(--al-ink); }
.al-activity button { font: inherit; color: inherit; cursor: pointer; min-height: 44px; min-width: 44px; }
.al-activity button:focus-visible { outline: 3px solid var(--al-petrol-700); outline-offset: 3px; }
.al-activity button:disabled { cursor: default; }
.al-title { font-size: 22px; line-height: 1.4; color: var(--al-petrol); letter-spacing: -.02em; margin: 0 0 10px; }
.al-instructions { line-height: 1.55; font-size: 15px; color: var(--al-ink-2); max-width: 75ch; margin: 0 0 24px; }
.al-pool { margin-bottom: 20px; }
.al-pool-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.al-pool h2 { font-size: 16px; margin: 0; color: var(--al-petrol); }
.al-pool-heading button { border: 1px solid var(--al-line); background: var(--al-paper); border-radius: 12px; padding: 8px 12px; font-size: 14px; }
.al-pool-heading .al-destination { width: auto; flex-shrink: 0; margin-bottom: 0; }
.al-pool-heading button:disabled { color: var(--al-ink-2) !important; }
.al-pool-items { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.al-chip { display: grid; grid-template-columns: minmax(0, 1fr) 44px; align-items: center; background: var(--al-paper); border: 1px solid var(--al-line); border-radius: 12px; overflow-wrap: anywhere; }
.al-item-button { border: 0; background: transparent; padding: 12px 14px; text-align: left; line-height: 1.5; font-size: 15px; border-radius: 12px; width: 100%; }
.al-chip:hover { border-color: var(--al-petrol-700); }
.al-drag-handle { display: flex; align-items: center; justify-content: center; min-height: 44px; min-width: 44px; color: var(--al-ink-2); cursor: grab; touch-action: none; user-select: none; }
.al-columns { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); align-items: start; gap: 12px; }
.al-column { padding: 10px; border: 1px dashed #9db8c4; border-radius: 12px; min-width: 0; }
.al-column .al-chip + .al-chip { margin-top: 8px; }
.al-destination { width: 100%; border: 0; border-radius: 12px; padding: 10px; background: var(--al-paper); color: var(--al-petrol) !important; font-weight: 600 !important; line-height: 1.45; text-align: left; margin-bottom: 8px; }
.al-destination:hover:not(:disabled), .al-pool-heading button:hover:not(:disabled) { background: var(--al-rose-tint); }
.al-empty { color: var(--al-ink-2); font-size: 14px; line-height: 1.5; margin: 8px 4px; }
.al-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 24px; }
.al-primary, .al-secondary { border: 0; border-radius: 12px; padding: 12px 22px; font-weight: 600 !important; }
.al-primary { background: var(--al-petrol); color: white !important; }
.al-primary:hover { background: var(--al-petrol-700); }
.al-secondary { background: var(--al-paper); border: 1px solid var(--al-line); }
.al-secondary:hover { background: var(--al-rose-tint); }
.al-progress { color: var(--al-ink-2); font-size: 14px; margin: 0; font-variant-numeric: tabular-nums; }
.al-result { margin-top: 20px; background: var(--al-paper); padding: 18px; border-radius: 12px; border: 1px solid var(--al-line); line-height: 1.6; }
.al-result h2 { font-size: 18px; color: var(--al-petrol); margin: 0 0 8px; }
.al-result p { margin: 0; max-width: 75ch; }
.al-chip.is-selected { border-color: var(--al-petrol); background: #e7f0f5; box-shadow: 0 0 0 1px var(--al-petrol); }
.al-chip.is-correct { border-color: var(--al-mint-deep); background: var(--al-mint-tint); }
.al-chip.is-wrong { border-color: var(--al-amber-deep); background: var(--al-amber-tint); }
.al-item-feedback { grid-column: 1 / -1; margin: 0; padding: 0 14px 12px; font-size: 14px; line-height: 1.5; }
.is-correct .al-item-feedback { color: var(--al-mint-deep); }
.is-wrong .al-item-feedback { color: var(--al-amber-deep); }
.is-dragging { opacity: .45; }
.is-drop-target { outline: 3px solid var(--al-rose-deep); outline-offset: 3px; background: var(--al-rose-tint); }
.al-drag-preview { position: fixed; z-index: 10; pointer-events: none; background: var(--al-paper); color: var(--al-ink); border: 1px solid var(--al-rose-deep); border-radius: 12px; box-shadow: 0 8px 22px rgba(0, 60, 92, .2); font: 15px/1.5 Inter, system-ui, sans-serif; padding: 12px; }
.al-drag-preview .al-drag-handle, .al-drag-preview .al-item-feedback { display: none; }
.al-drag-preview button { font: inherit; color: inherit; background: transparent; border: 0; text-align: left; }
.al-sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
[hidden] { display: none !important; }
@media (max-width: 600px) {
  .al-activity { padding: 16px 12px; }
  .al-title { font-size: 19px; }
  .al-instructions { margin-bottom: 18px; }
  .al-pool-items, .al-columns { grid-template-columns: minmax(0, 1fr); }
  .al-pool-heading { align-items: flex-start; }
}
@media (prefers-reduced-motion: no-preference) {
  .al-chip { transition: background-color .15s ease-out; }
}

/* Order steps keep their place while a drag preview moves above them. */
.al-steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.al-step { display: grid; grid-template-columns: 28px minmax(0, 1fr) 92px 44px; gap: 4px; align-items: center; padding: 8px; border: 1px solid var(--al-line); background: var(--al-paper); border-radius: 12px; }
.al-step-number { text-align: center; color: var(--al-petrol); font-weight: 600; font-variant-numeric: tabular-nums; }
.al-step .al-item-button { padding: 8px; overflow-wrap: anywhere; }
.al-move-buttons { display: flex; gap: 4px; }
.al-move-button { display: flex; align-items: center; justify-content: center; border: 1px solid var(--al-line); border-radius: 12px; background: var(--al-cream); width: 44px; height: 44px; color: var(--al-petrol) !important; }
.al-move-button:hover:not(:disabled) { background: var(--al-rose-tint); border-color: var(--al-rose-deep); }
.al-move-button:disabled { opacity: .45; }
.al-step.is-selected { border-color: var(--al-petrol); background: #e7f0f5; box-shadow: 0 0 0 1px var(--al-petrol); }
.al-step.is-correct { border-color: var(--al-mint-deep); background: var(--al-mint-tint); }
.al-step.is-wrong { border-color: var(--al-amber-deep); background: var(--al-amber-tint); }
.al-step.is-drop-target { outline: 0; border-top: 4px solid var(--al-rose-deep); padding-top: 5px; }
.al-step-feedback { grid-column: 2 / -1; margin: 0; padding: 0 8px 4px; font-size: 14px; line-height: 1.5; color: var(--al-amber-deep); }
.is-correct .al-step-feedback { color: var(--al-mint-deep); }
@media (max-width: 600px) {
  .al-step { grid-template-columns: 24px minmax(0, 1fr) 44px 44px; gap: 2px; padding: 6px; }
  .al-move-buttons { flex-direction: column; }
}