/* ============================================
   LESSON 12 — SPECIFIC STYLES
   Understanding Categories (Drag & Drop)
   ============================================ */

/* ── Word Bank ── */
.l12-bank-label {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: .07em;
  margin-bottom: 8px;
}

.l12-bank {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 52px;
  background: var(--bg-card-2);
  border: 1.5px dashed var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 20px;
}

.l12-bank-empty {
  font-size: .97rem;
  color: var(--success);
  align-self: center;
  font-style: italic;
}

/* ── Draggable Chips ── */
.l12-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 20px;
  border: 1.5px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  font-size: .97rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: grab;
  user-select: none;
  transition: border-color .18s, background .18s, transform .15s;
  white-space: nowrap;
}
.l12-chip:hover {
  border-color: var(--gold);
  background: rgba(201,168,76,.1);
  transform: translateY(-1px);
}
.l12-chip:active { cursor: grabbing; transform: scale(.97); }

.l12-chip-x {
  font-size: .8rem;
  color: var(--text-dim);
  cursor: pointer;
  padding: 0 2px;
  line-height: 1;
  transition: color .15s;
}
.l12-chip-x:hover { color: var(--error); }

.l12-chip-correct {
  border-color: var(--success) !important;
  background: rgba(72,199,116,.15) !important;
  color: var(--success) !important;
  cursor: default !important;
}
.l12-chip-wrong {
  border-color: var(--error) !important;
  background: rgba(255,100,100,.12) !important;
  color: var(--error) !important;
}

/* ── Table Layout ── */
.l12-table-wrap {
  overflow-x: auto;
  margin-bottom: 8px;
}

.l12-table {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  min-width: 640px;
}

/* ── Column ── */
.l12-col {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.l12-col-head {
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  border-radius: var(--radius) var(--radius) 0 0;
  padding: 10px 10px;
  font-size: 1rem;
  font-weight: 800;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: .05em;
  text-align: center;
}

/* ── Drop Zone ── */
.l12-drop-zone {
  flex: 1;
  min-height: 130px;
  border: 1.5px dashed rgba(201,168,76,.25);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
  background: rgba(255,255,255,.015);
  padding: 10px 8px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  transition: border-color .2s, background .2s;
}
.l12-drop-zone:empty::after {
  content: 'drop here';
  font-size: 1rem;
  color: var(--text-dim);
  text-align: center;
  opacity: .5;
  margin: auto;
  display: block;
  padding-top: 20px;
}
.l12-drop-zone.l12-drag-over {
  border-color: var(--gold);
  background: rgba(201,168,76,.06);
}

/* ── Chips inside drop zones ── */
.l12-drop-zone .l12-chip {
  width: 100%;
  justify-content: space-between;
  border-radius: var(--radius);
  font-size: 1rem;
}

/* ── Shake ── */
@keyframes l12shake {
  0%,100% { transform: translateX(0); }
  20%     { transform: translateX(-6px); }
  40%     { transform: translateX(6px); }
  60%     { transform: translateX(-4px); }
  80%     { transform: translateX(4px); }
}
.l12-shake { animation: l12shake .45s ease; }

/* ── Explanation ── */
.l12-ft-box {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.l12-ft-row {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 1rem;
}
.l12-ft-row:last-child { border-bottom: none; }
.l12-ft-row:nth-child(odd) { background: var(--bg-card-2); }
.l12-ft-cat   { font-weight: 700; color: var(--gold); min-width: 110px; flex-shrink: 0; }
.l12-ft-words { color: var(--text-muted); }

.l12-exp-sub {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 10px;
}

.l12-exp-card {
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 15px;
  margin-bottom: 8px;
}
.l12-exp-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}
.l12-exp-word  { font-weight: 800; color: var(--text); font-size: 1rem; }
.l12-exp-arrow { color: var(--text-dim); }
.l12-exp-cat   { font-weight: 600; color: var(--success); font-size: 1rem; }
.l12-exp-why   { font-size: .97rem; color: var(--text-muted); line-height: 1.6; margin: 0; }

/* ── Tip ── */
.l12-tip-alert {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: rgba(201,168,76,.08);
  border: 1px solid rgba(201,168,76,.3);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 20px;
}

.l12-tip-rules {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.l12-tr-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 16px;
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.l12-tr-icon  { color: var(--success); font-size: 1.25rem; margin-top: 2px; flex-shrink: 0; }
.l12-tr-title { font-weight: 600; color: var(--text); margin-bottom: 4px; font-size: 1rem; }
.l12-tr-body  { font-size: .97rem; color: var(--text-muted); line-height: 1.6; margin: 0; }

/* ── Touch/Mobile fallback notice ── */
@media (hover: none) and (pointer: coarse) {
  .l12-chip { cursor: pointer; }
}