/* The question bank: controls beside the question on wide screens, stacked on phones. */

.bank {
  padding: clamp(40px, 6vw, 72px) 0 clamp(64px, 8vw, 104px);
}

.bank [hidden] {
  display: none !important;
}

.bank-head {
  max-width: 760px;
  margin-bottom: clamp(32px, 5vw, 56px);
}

.bank-head .lead {
  margin-top: 18px;
}

.bank-layout {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  grid-template-areas: 'controls question';
  gap: 28px;
  align-items: start;
}

/* Stacked, the question comes first: it is the product, and Next question lives in it.
   The markup puts it first as well, so focus order follows the page. */
@media (max-width: 860px) {
  .bank-layout {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      'question'
      'controls';
  }
}

/* Controls */

.bank-controls {
  grid-area: controls;
  padding: 22px;
}

.field-error {
  margin: 6px 0 0;
  color: var(--bad);
}

@media (min-width: 861px) {
  .bank-controls {
    position: sticky;
    top: calc(var(--nav-h) + 20px);
  }
}

.controls {
  display: grid;
  gap: 18px;
}

.field {
  display: grid;
  gap: 6px;
}

.field label,
.spr-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-2);
}

.field select,
.field input,
.spr-input {
  width: 100%;
  height: 44px;
  padding: 0 14px;
  /* --ink-3, not --line: a field's edge has to clear 3:1 against the card */
  border: 1px solid var(--ink-3);
  border-radius: var(--radius-s);
  background-color: var(--surface);
  color: var(--ink);
  font-size: 16px;
  transition: border-color var(--dur-1);
}

.field select:hover,
.field input:hover,
.spr-input:hover {
  border-color: var(--ink-2);
}

.field select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 40px;
  /* the chevron's stroke is --ink-2 */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none' stroke='%236e6e73' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 6.5l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 16px;
}

.field input[type="number"] {
  appearance: textfield;
  -moz-appearance: textfield;
}

.field input::-webkit-outer-spin-button,
.field input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Stays at 16px: iOS Safari zooms the page when a smaller field takes focus. */
.field input[readonly] {
  font-family: var(--mono);
  color: var(--ink-2);
  background-color: var(--surface-2);
}

.actions {
  display: grid;
  gap: 10px;
}

.actions .btn {
  width: 100%;
}

.bank .btn:disabled {
  cursor: default;
  opacity: 0.5;
  transform: none;
  box-shadow: none;
}

/* The question */

.bank-main {
  grid-area: question;
  display: grid;
  gap: 14px;
  min-width: 0;
}

.bank-note {
  margin: 0;
}

.bank-main .q-card {
  /* a wide table scrolls inside .q-scroll instead of widening the card */
  min-width: 0;
  scroll-margin-top: calc(var(--nav-h) + 20px);
}

/* The script fills the card on load; only the pre-script and no-script states are empty. */
.bank-main .q-card:empty {
  display: none;
}

.bank-main .q-card:focus-visible {
  outline-offset: 6px;
}

.bank-main .q-meta .chip {
  white-space: normal;
}

.q-id {
  margin-left: auto;
  font-family: var(--mono);
  overflow-wrap: anywhere;
}

.q-scroll {
  max-width: 100%;
  overflow-x: auto;
}

.q-answer {
  display: grid;
  gap: 12px;
}

.q-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 8px 12px;
}

.q-tools-hint {
  margin: 0;
}

.eliminator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-2);
  transition:
    background-color var(--dur-1),
    color var(--dur-1),
    border-color var(--dur-1);
}

.eliminator:hover {
  border-color: rgba(0, 0, 0, 0.16);
}

.eliminator .abc {
  font-weight: 700;
  letter-spacing: 0.06em;
  text-decoration: line-through;
}

.eliminator[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--accent-ink);
}

.eliminator:disabled {
  opacity: 0.5;
  cursor: default;
}

.choice:disabled {
  cursor: default;
}

.choice:disabled:not(.is-correct):not(.is-incorrect):hover {
  border-color: var(--line);
}

/* Student-produced response */

.spr {
  display: grid;
  gap: 8px;
}

.spr-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.spr-input {
  width: 180px;
  font-size: 18px;
  font-variant-numeric: tabular-nums;
}

.spr-input.is-correct {
  border-color: var(--ok);
  background-color: var(--ok-soft);
}

.spr-input.is-incorrect {
  border-color: var(--bad);
  background-color: var(--bad-soft);
}

.spr-input[aria-invalid="true"] {
  border-color: var(--bad);
}

.spr .small {
  margin: 0;
}

/* Result, explanation and the way on */

.q-outcome {
  display: grid;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.q-result {
  margin: 0;
  font-weight: 600;
}

.q-result.is-correct {
  color: var(--ok);
}

.q-result.is-incorrect {
  color: var(--bad);
}

.q-next {
  display: flex;
}

/* Bank at a glance */

.glance {
  margin-top: clamp(56px, 8vw, 96px);
}

.glance-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 24px;
  margin-bottom: 20px;
}

.glance-totals {
  margin: 0;
  font-size: 15px;
}

/* Four domains, so the grid is always 1, 2 + 2 or 4: never 3 + 1. */
.glance-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

@media (min-width: 640px) {
  .glance-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .glance-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.glance-card {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 22px;
  cursor: pointer;
  transition:
    transform var(--dur-1) var(--ease-out),
    border-color var(--dur-1),
    box-shadow var(--dur-1);
}

.glance-card:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 0, 0, 0.16);
  box-shadow: var(--shadow-m);
}

/* A domain with no templates is not a target. */
.glance-card.is-empty {
  cursor: default;
}

.glance-card.is-empty:hover {
  transform: none;
  border-color: var(--line);
  box-shadow: var(--shadow-s);
}

.glance-title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
}

.glance-name {
  margin: 0;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.015em;
}

.glance-stats {
  display: grid;
  gap: 2px;
  margin: 0;
  font-size: 14px;
  color: var(--ink-2);
}

.glance-stats strong {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.glance-skills {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
  color: var(--ink-2);
}

.glance-card .btn {
  justify-self: start;
  margin-top: 6px;
}

/* Footer: the same markup as index.html; --ink-2 so 14px text clears 4.5:1. */