/* Light interactives shared by every module (interactives.js). */

.ix-ghost {
  position: fixed;
  z-index: 1000;
  pointer-events: none;
  transform: rotate(-2deg) scale(1.03);
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.22);
  opacity: 0.96;
}

/* ── Flip cards ── */
.ix-flip-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px;
}
/* Four cards: a 2x2 grid instead of three plus one left over */
.ix-flip-grid:has(> :nth-child(4):last-child) { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 520px) { .ix-flip-grid:has(> :nth-child(4):last-child) { grid-template-columns: 1fr; } }
.ix-card {
  --ix-c: var(--primary);
  --ix-l: #E8EDF3;
  display: grid;
  perspective: 1100px;
  cursor: pointer;
  min-height: 150px;
  border-radius: var(--radius);
  outline-offset: 3px;
}
.ix-card:nth-child(4n+2) { --ix-c: #0e8177; --ix-l: #E0F1EE; }
.ix-card:nth-child(4n+3) { --ix-c: #b7791f; --ix-l: #FBF1DC; }
.ix-card:nth-child(4n+4) { --ix-c: #a8492c; --ix-l: #F6E6DF; }
.ix-front, .ix-back {
  grid-area: 1 / 1;
  border-radius: var(--radius);
  padding: 16px 18px;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transition: transform 0.5s cubic-bezier(.3,.7,.3,1);
  display: flex;
  flex-direction: column;
}
.ix-front {
  background: var(--ix-c);
  color: #fff;
  justify-content: center;
  position: relative;
}
.ix-front strong { font-size: 1.15rem; line-height: 1.3; display: block; color: #fff; }
.ix-front span:not(.ix-hint) { font-size: 0.9rem; opacity: 0.85; margin-top: 6px; line-height: 1.45; }
.ix-hint {
  position: absolute; right: 12px; bottom: 9px;
  font-size: 0.72rem; letter-spacing: 0.05em; text-transform: uppercase; opacity: 0.7;
}
.ix-back {
  background: var(--ix-l);
  border: 1px solid color-mix(in srgb, var(--ix-c) 30%, transparent);
  color: var(--gray-900);
  font-size: 0.93rem;
  line-height: 1.6;
  transform: rotateY(180deg);
}
.ix-back strong:first-child { color: var(--ix-c); display: block; margin-bottom: 4px; }
.ix-back p { margin: 0 0 6px !important; font-size: 0.93rem !important; }
.ix-card.ix-flipped .ix-front { transform: rotateY(-180deg); }
.ix-card.ix-flipped .ix-back { transform: rotateY(0deg); }
.ix-card:hover .ix-front { filter: brightness(1.08); }
.ix-count { font-size: 0.88rem; color: var(--gray-600); margin: 12px 0 0 !important; }
@media (prefers-reduced-motion: reduce) { .ix-front, .ix-back { transition: none; } }

/* ── Drag into bins ── */
.ix-pool {
  display: flex; flex-wrap: wrap; gap: 8px;
  padding: 12px;
  min-height: 56px;
  border: 2px dashed var(--gray-200);
  border-radius: var(--radius);
  margin-bottom: 14px;
}
.ix-buckets.ix-complete .ix-pool { display: none; }
.ix-chip {
  background: var(--white);
  border: 1px solid #c9d3df;
  border-bottom-width: 3px;
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 0.9rem;
  line-height: 1.4;
  color: var(--gray-900);
  cursor: grab;
  touch-action: none;
  user-select: none;
  max-width: 100%;
}
.ix-chip:hover { border-color: var(--accent); }
.ix-chip.ix-picked { border-color: var(--accent); background: var(--accent-light); transform: translateY(-2px); }
.ix-chip.ix-dragging { opacity: 0.35; }
.ix-chip.ix-placed { cursor: default; border-bottom-width: 1px; background: rgba(255,255,255,0.85); font-size: 0.86rem; }
.ix-chip.ix-shake { animation: ix-shake 0.4s; border-color: #a8492c; }
@keyframes ix-shake { 20%, 60% { transform: translateX(-6px); } 40%, 80% { transform: translateX(6px); } }
.ix-bins {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 10px;
}
.ix-bin {
  --ix-c: var(--primary);
  --ix-l: #EEF2F7;
  border: 2px solid transparent;
  background: var(--ix-l);
  border-radius: var(--radius);
  padding: 10px;
  min-height: 110px;
  transition: border-color 0.15s, transform 0.15s;
}
.ix-bin:nth-child(4n+2) { --ix-c: #0e8177; --ix-l: #E6F3F0; }
.ix-bin:nth-child(4n+3) { --ix-c: #b7791f; --ix-l: #FBF3E2; }
.ix-bin:nth-child(4n+4) { --ix-c: #a8492c; --ix-l: #F8EAE4; }
.ix-bin.ix-over { border-color: var(--ix-c); transform: scale(1.02); }
.ix-bin-head { font-weight: 700; color: var(--ix-c); font-size: 0.95rem; margin-bottom: 8px; }
.ix-bin-head small { display: block; font-weight: 400; color: var(--gray-600); font-size: 0.8rem; margin-top: 2px; }
.ix-bin-items { display: flex; flex-direction: column; gap: 6px; }
.ix-bin .ix-chip.ix-placed { border-left: 3px solid var(--ix-c); }
/* 2x2 table layout: column labels across the top, row labels down the side */
.ix-bins--2x2 { grid-template-columns: auto 1fr 1fr; align-items: stretch; }
.ix-axis { font-size: 0.8rem; font-weight: 700; color: var(--gray-600); text-transform: uppercase; letter-spacing: 0.04em; display: flex; align-items: center; justify-content: center; text-align: center; padding: 4px; }
.ix-axis--row { writing-mode: vertical-rl; transform: rotate(180deg); }
.ix-feedback {
  margin: 12px 0 0 !important;
  font-size: 0.92rem !important;
  min-height: 1.5em;
  padding: 0;
}
.ix-feedback.ix-ok, .ix-feedback.ix-no { padding: 10px 14px; border-radius: var(--radius-sm); }
.ix-feedback.ix-ok { background: #E6F3F0; }
.ix-feedback.ix-no { background: #F8EAE4; }
.ix-done { display: block; margin-top: 6px; font-weight: 600; color: #0e8177; }

/* ── Drag into order ── */
.ix-order-end { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--gray-600); margin: 0 0 6px 2px; }
.ix-order-end--bottom { margin: 0 0 12px 2px; }
.ix-order-list { list-style: none; padding: 0 !important; margin: 0 0 6px !important; counter-reset: ixo; }
.ix-order-list li {
  counter-increment: ixo;
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  margin: 0 0 6px !important;
  background: var(--white);
  border: 1px solid #c9d3df;
  border-radius: var(--radius-sm);
  cursor: grab;
  touch-action: none;
  user-select: none;
  transition: background 0.15s, border-color 0.15s;
  font-size: 0.93rem;
}
.ix-order-list li::before {
  content: counter(ixo);
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--primary); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.76rem; font-weight: 700; flex-shrink: 0;
}
.ix-grip {
  width: 10px; height: 16px; flex-shrink: 0; opacity: 0.45;
  background-image: radial-gradient(circle, var(--gray-600) 1.4px, transparent 1.6px);
  background-size: 5px 5px;
}
.ix-order-list li:hover { border-color: var(--accent); }
.ix-order-list li.ix-dragging { background: var(--accent-light); border-color: var(--accent); box-shadow: 0 6px 18px rgba(15,23,42,0.15); cursor: grabbing; }
.ix-order-list li.ix-ok { background: #E6F3F0; border-color: #0e8177; }
.ix-order-list li.ix-ok::before { background: #0e8177; }
.ix-order-list li.ix-off { background: #F8EAE4; border-color: #a8492c; }
.ix-order-list li.ix-off::before { background: #a8492c; }
.ix-order-text { flex: 1; }
.ix-order-why { display: none; color: var(--gray-600); font-size: 0.85rem; margin-top: 2px; }
.ix-order.ix-complete .ix-order-why { display: block; }
.ix-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.ix-order-result { font-size: 0.92rem; color: var(--gray-600); margin: 10px 0 0 !important; min-height: 1.4em; }

/* ── Find them all ── */
.ix-find-text {
  font-family: var(--plex-mono);
  font-size: 0.86rem;
  line-height: 1.85;
  background: #FBFAF7;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 16px 18px;
  color: var(--gray-900);
  cursor: text;
}
.ix-target { cursor: pointer; border-radius: 3px; padding: 1px 0; transition: background 0.15s; }
.ix-target:hover { background: rgba(14,129,119,0.08); }
.ix-target.ix-found { background: #f0b9a6; box-shadow: 0 0 0 2px #f0b9a6; color: #5c1f0e; }
.ix-target.ix-missed { background: transparent; box-shadow: 0 0 0 2px #a8492c; }
.ix-find-note { font-size: 0.92rem !important; margin: 12px 0 8px !important; min-height: 1.5em; }
.ix-tally { color: var(--gray-600); white-space: nowrap; }

/* ── Prevalence slider ── */
.ix-prev-top { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin-bottom: 14px; }
.ix-prev-top label { font-weight: 600; }
.ix-prev-top input { flex: 1; min-width: 160px; accent-color: var(--accent); }
.ix-prev-val { font-family: var(--plex-mono); font-weight: 600; min-width: 9.5em; }
.ix-prev-body { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 20px; align-items: start; }
.ix-prev-grid { display: grid; grid-template-columns: repeat(40, 1fr); gap: 2px; }
.ix-prev-cell { aspect-ratio: 1; border-radius: 1.5px; background: #dfe3e8; transition: background 0.25s; }
.ix-prev-cell.tp { background: #0e8177; }
.ix-prev-cell.fn { background: #fff; box-shadow: inset 0 0 0 1.5px #a8492c; }
.ix-prev-cell.fp { background: #f0b9a6; }
.ix-prev-big b { display: block; font-size: 3rem; line-height: 1; color: var(--primary); font-family: var(--plex-mono); }
.ix-prev-big span { font-size: 0.9rem; color: var(--gray-600); }
.ix-prev-counts { font-size: 0.93rem !important; margin: 14px 0 8px !important; }
.ix-prev-fixed { font-size: 0.85rem !important; color: var(--gray-600); margin: 0 !important; }
.ix-prev-note { font-size: 0.92rem !important; margin: 14px 0 0 !important; padding: 10px 14px; background: var(--gray-100); border-radius: var(--radius-sm); }
@media (max-width: 720px) {
  .ix-prev-body { grid-template-columns: 1fr; }
  .ix-prev-grid { grid-template-columns: repeat(25, 1fr); }
  .ix-bins--2x2 { grid-template-columns: 1fr 1fr; }
  .ix-bins--2x2 .ix-axis { display: none; }
}

/* Explicit colors, for layouts where the nth-child order doesn't match (e.g. the 2x2 grid) */
.ix-c-navy { --ix-c: var(--primary); --ix-l: #EEF2F7; }
.ix-c-teal { --ix-c: #0e8177; --ix-l: #E6F3F0; }
.ix-c-amber { --ix-c: #b7791f; --ix-l: #FBF3E2; }
.ix-c-rust { --ix-c: #a8492c; --ix-l: #F8EAE4; }