/* Xếp câu tiếng Anh: hình + ô trống + thẻ từ */
.sn-top { display: flex; align-items: center; gap: 14px; }
.sn-slots { display: flex; flex-wrap: wrap; justify-content: center; gap: clamp(8px, 1.6vmin, 14px); }
.sn-slot {
  min-width: clamp(70px, 13vmin, 120px); min-height: clamp(54px, 9vmin, 74px); padding: 4px 14px; display: grid; place-items: center;
  border: 4px dashed #c3cfdf; border-radius: 18px; font-size: clamp(22px, 4.4vmin, 36px); font-weight: 800; color: #1d6fd1;
}
.sn-slot.on { border: 4px solid var(--good); background: #fff; box-shadow: 0 5px 0 #22a454; animation: pop .35s ease; }
.sn-slots.done { animation: bump .6s ease; }
.sn-cards { display: flex; flex-wrap: wrap; justify-content: center; gap: clamp(12px, 2.4vmin, 20px); min-height: clamp(64px, 11vmin, 90px); }
.sn-card {
  min-width: clamp(76px, 14vmin, 130px); min-height: 64px; padding: 8px 18px; font-size: clamp(22px, 4.4vmin, 36px); font-weight: 800;
  color: #7c3aed; animation: pop .4s ease backwards; animation-delay: calc(var(--n) * .07s);
}
.sn-card.wrong { animation: shake .45s ease; }
.sn-card.hint { box-shadow: 0 8px 0 #f2b23a, 0 0 0 6px #ffc21f, 0 14px 24px rgba(0, 0, 0, .16); animation: pulse 1s ease-in-out infinite; }