/* ==========================================================================
   engagement.css — leaderboard, FAQ, final call to action
   ========================================================================== */

/* ==========================================================================
   Leaderboard
   ========================================================================== */

.leaderboard {
  background: var(--paper);
}

.leaderboard__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-m);
}

.board {
  display: flex;
  flex-direction: column;
  gap: var(--space-s);
  padding: var(--space-m);
  background: var(--paper-soft);
  border: 1px solid var(--ink-15);
  border-radius: var(--radius-md);
}

.board--per-capita {
  --accent: var(--blue);
}

.board--absolute {
  --accent: var(--teal);
}

.board__head {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xs);
}

.board__title {
  font-size: var(--text-xl);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--navy);
}

.board__sub {
  font-size: var(--text-s);
  color: var(--ink-50);
}

.board__rule {
  width: 2.5rem;
  height: 3px;
  border-radius: var(--radius-pill);
  background: var(--accent, var(--blue));
}

.board__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
}

.board__row {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-s);
  background: var(--paper);
  border-radius: var(--radius-sm);
  transition: transform var(--duration-fast) var(--ease-out);
}

.board__row:hover {
  transform: translateX(4px);
}

.board__row--lead {
  background: var(--black);
  color: var(--paper);
}

.board__rank {
  min-width: 2.25rem;
  font-size: var(--text-l);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--accent, var(--blue));
}

.board__row--lead .board__rank {
  color: var(--yellow);
}

.board__name {
  flex: 1;
  font-size: var(--text-base);
  font-weight: 600;
}

.board__value {
  font-size: var(--text-base);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--accent, var(--navy));
}

.board__row--lead .board__value {
  color: var(--yellow);
}

/* Empty / loading placeholder shown before data resolves */
.board__empty {
  padding: var(--space-s);
  font-size: var(--text-s);
  color: var(--ink-50);
  text-align: center;
}

.leaderboard__note {
  font-size: var(--text-s);
  font-style: italic;
  color: var(--ink-50);
  text-align: center;
}

/* ==========================================================================
   FAQ
   ========================================================================== */

.faq {
  background: var(--paper);
}

.faq__list {
  width: 100%;
  max-width: 50rem;
  margin-inline: auto;
}

.faq__item {
  border-bottom: 1px solid var(--ink-15);
}

.faq__item:first-child {
  border-top: 1px solid var(--ink-15);
}

/* The question sits inside a heading for landmark navigation; the heading
   itself must not impose its own typography on the button. */
.faq__heading {
  font: inherit;
  letter-spacing: normal;
}

.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-s);
  width: 100%;
  padding-block: var(--space-s);
  font-size: var(--text-l);
  font-weight: 700;
  line-height: 1.3;
  text-align: left;
  color: var(--black);
  transition: color var(--duration-fast) var(--ease-out);
}

.faq__question:hover {
  color: var(--blue);
}

/* Cross drawn by the .icon-cross utility in base.css, so it stays centred
   through the 45-degree rotation below. */
.faq__icon {
  display: block;
  flex-shrink: 0;
  width: 1.75rem;
  height: 1.75rem;
  background: var(--paper-mid);
  border-radius: 50%;
  color: var(--navy);
  transition:
    transform var(--duration-normal) var(--ease-out),
    background-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out);
}

.faq__question[aria-expanded="true"] .faq__icon {
  transform: rotate(45deg);
  background: var(--blue);
  color: var(--paper);
}

/* grid-template-rows 0fr -> 1fr animates to the answer's natural height,
   with no magic max-height number to guess at. */
.faq__answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--duration-slow) var(--ease-out);
}

.faq__item:has(.faq__question[aria-expanded="true"]) .faq__answer {
  grid-template-rows: 1fr;
}

.faq__answer > div {
  overflow: hidden;
}

.faq__answer p {
  padding-bottom: var(--space-s);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--ink-70);
}

/* ==========================================================================
   Final call to action
   ========================================================================== */

.cta {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--black) 0%, #2a2260 45%, var(--navy) 100%);
  color: var(--paper);
}

.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 100%, rgb(0 151 215 / 15%) 0%, transparent 60%),
    radial-gradient(circle at 15% 20%, rgb(117 82 204 / 28%) 0%, transparent 55%);
}

.cta__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-s);
  align-items: center;
  text-align: center;
}

.cta__title {
  font-size: var(--text-5xl);
  line-height: 1.1;
}

.cta__title .serif-accent {
  color: var(--yellow);
}

.cta__lead {
  max-width: 35rem;
  font-size: var(--text-l);
  color: rgb(255 255 255 / 85%);
}

.cta__button {
  margin-top: var(--space-xs);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (width <= 60rem) {
  .leaderboard__grid {
    grid-template-columns: 1fr;
  }
}