/* ==========================================================================
   FAQ explorer (js/faq.js). Scales to any number of questions.
   Desktop: search, a scrolling question list with a springy pill, and a green
   answer stage. Phones: the same search over a smooth accordion.
   Without JavaScript the plain <details> list from components.css is used.
   ========================================================================== */

/* ---- Search ------------------------------------------------------------------ */
.qa-search {
  display: none;
}

.qa-search.is-live {
  position: relative;
  display: block;
  max-width: 34rem;
  margin-bottom: var(--space-5);
}

.qa-search svg {
  position: absolute;
  left: 1.15rem;
  top: 50%;
  width: 1.2rem;
  height: 1.2rem;
  translate: 0 -50%;
  color: var(--gg-green-deep);
  pointer-events: none;
}

.qa-search input {
  width: 100%;
  min-height: 3.5rem;
  padding: 0 6.5rem 0 3.1rem;
  border: 2px solid var(--gg-line);
  border-radius: var(--radius-pill);
  background: var(--gg-white);
  color: var(--gg-ink);
  font: inherit;
  font-weight: var(--fw-bold);
  transition: border-color 0.25s ease, box-shadow 0.3s ease;
}

.qa-search input::placeholder {
  color: var(--gg-text-muted);
  font-weight: var(--fw-regular);
  opacity: 1;
}

.qa-search input:focus-visible {
  border-color: var(--gg-ink);
  box-shadow: 0 12px 28px rgba(24, 37, 27, 0.1);
}

.qa-search__count {
  position: absolute;
  right: 1.25rem;
  top: 50%;
  translate: 0 -50%;
  font-size: var(--fs-small);
  font-weight: var(--fw-heavy);
  color: var(--gg-green-deep);
}

.qa__q mark,
.faq__q mark {
  padding: 0 0.1em;
  border-radius: 4px;
  background: rgba(81, 186, 108, 0.35);
  color: inherit;
}

/* ---- Desktop explorer ---------------------------------------------------------- */
.qa {
  display: none;
}

@media (min-width: 900px) {
  .faq.faq--live {
    display: none;
  }

  .qa.qa--live {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--space-6);
    align-items: stretch;
  }
}

.qa__side {
  position: relative;
  min-width: 0;
}

.qa__list {
  --node-x: 1.1rem; /* centre of the thread */
  position: relative;
  display: grid;
  align-content: start;
  gap: 0.35rem;
  max-height: 31rem;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 0.5rem 0.75rem 1.75rem 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(24, 37, 27, 0.25) transparent;
}

/* soft fades only where there is more to scroll */
.qa__list.fade-bottom {
  -webkit-mask-image: linear-gradient(#000 calc(100% - 3rem), transparent);
  mask-image: linear-gradient(#000 calc(100% - 3rem), transparent);
}

.qa__list.fade-top {
  -webkit-mask-image: linear-gradient(transparent, #000 3rem);
  mask-image: linear-gradient(transparent, #000 3rem);
}

.qa__list.fade-top.fade-bottom {
  -webkit-mask-image: linear-gradient(transparent, #000 3rem, #000 calc(100% - 3rem), transparent);
  mask-image: linear-gradient(transparent, #000 3rem, #000 calc(100% - 3rem), transparent);
}

/* the thread through every question, filled down to the chosen one */
.qa__trail {
  position: absolute;
  left: calc(var(--node-x) - 2px);
  z-index: 0;
  width: 4px;
  border-radius: 4px;
  background: repeating-linear-gradient(to bottom, rgba(24, 37, 27, 0.18) 0 6px, transparent 6px 12px);
  pointer-events: none;
}

.qa__trail i {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: var(--gg-green);
  transform: scaleY(var(--fill, 0));
  transform-origin: 50% 0;
}

/* the dark card that springs to the chosen question */
.qa__pill {
  position: absolute;
  left: 2.5rem;
  right: 0.75rem;
  top: 0;
  z-index: 0;
  border-radius: 20px 20px 20px 6px;
  background: var(--gg-ink);
  box-shadow: 0 8px 18px rgba(24, 37, 27, 0.2);
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.qa__item {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 2.2rem 3.4rem minmax(0, 1fr) auto;
  align-items: center;
  width: 100%;
  min-height: 4.25rem;
  padding: 0.7rem 1.1rem 0.7rem 0;
  border: 0;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--gg-ink);
  font: inherit;
  font-size: clamp(1rem, 0.85rem + 0.4vw, 1.15rem);
  font-weight: var(--fw-heavy);
  line-height: 1.25;
  text-align: left;
  cursor: pointer;
  transition: color 0.3s ease;
}

.qa__item[hidden] {
  display: none;
}

/* node on the thread: hollow, then green once read, then a ringed dot when chosen */
.qa__node {
  justify-self: start;
  width: 0.9rem;
  height: 0.9rem;
  margin-left: calc(var(--node-x) - 0.45rem);
  border: 2px solid rgba(24, 37, 27, 0.35);
  border-radius: 50%;
  background: var(--gg-tint);
  transition: background-color 0.3s ease, border-color 0.3s ease, scale 0.45s cubic-bezier(0.3, 1.6, 0.5, 1), box-shadow 0.3s ease;
}

.qa__item.is-seen .qa__node {
  border-color: var(--gg-green);
  background: var(--gg-green);
}

.qa__item[aria-selected="true"] .qa__node {
  border-color: var(--gg-ink);
  background: var(--gg-green);
  scale: 1.35;
  box-shadow: 0 0 0 4px rgba(81, 186, 108, 0.3);
}

/* outlined numbers that fill in */
.qa__no {
  padding-left: 0.85rem;
  font-size: 1.6rem;
  font-weight: var(--fw-heavy);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--gg-ink);
  -webkit-text-fill-color: transparent;
  -webkit-text-stroke: 1.5px rgba(24, 37, 27, 0.45);
  transition: -webkit-text-fill-color 0.3s ease, -webkit-text-stroke-color 0.3s ease, translate 0.4s cubic-bezier(0.3, 1.4, 0.5, 1);
}

.qa__q {
  transition: translate 0.4s cubic-bezier(0.3, 1.4, 0.5, 1);
}

.qa__item svg {
  width: 1.15rem;
  height: 1.15rem;
  opacity: 0;
  translate: -10px 0;
  transition: opacity 0.25s ease, translate 0.4s cubic-bezier(0.3, 1.4, 0.5, 1);
}

@media (hover: hover) and (pointer: fine) {
  .qa__item:not([aria-selected="true"]):hover .qa__no {
    -webkit-text-fill-color: var(--gg-green);
    -webkit-text-stroke-color: var(--gg-green-deep);
    translate: 0 -2px;
  }

  .qa__item:not([aria-selected="true"]):hover .qa__q {
    translate: 6px 0;
  }

  .qa__item:not([aria-selected="true"]):hover svg {
    opacity: 0.6;
    translate: 0 0;
  }

  .qa__item:not([aria-selected="true"]):hover .qa__node {
    scale: 1.25;
  }
}

.qa__item[aria-selected="true"] {
  color: var(--gg-white);
  --color-focus: var(--gg-green);
}

.qa__item[aria-selected="true"] .qa__no {
  -webkit-text-fill-color: var(--gg-green);
  -webkit-text-stroke-color: var(--gg-green);
}

.qa__item[aria-selected="true"] .qa__q {
  translate: 4px 0;
}

.qa__item[aria-selected="true"] svg {
  color: var(--gg-green);
  opacity: 1;
  translate: 0 0;
}

.qa__empty {
  padding: var(--space-5);
  border: 2px dashed var(--gg-line);
  border-radius: var(--radius-md);
  font-weight: var(--fw-bold);
  text-align: center;
}

/* ---- Answer stage ---------------------------------------------------------------- */
.qa__stage {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: grid;
  grid-template-rows: 1fr auto;
  min-height: 31rem;
  padding: var(--space-6);
  border-radius: 32px;
  background: var(--gg-green);
  color: var(--gg-ink);
}

.qa.is-empty .qa__stage {
  opacity: 0.4;
}

.qa__deco {
  --mx: 0;
  --my: 0;
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.qa__glyph {
  position: absolute;
  right: -2rem;
  bottom: -6rem;
  font-size: 26rem;
  font-weight: var(--fw-heavy);
  line-height: 1;
  -webkit-text-fill-color: transparent;
  -webkit-text-stroke: 3px rgba(255, 255, 255, 0.4);
  translate: calc(var(--mx) * -36px) calc(var(--my) * -36px);
  rotate: calc(-10deg + var(--turn, 0) * 9deg);
  transition: translate 0.6s cubic-bezier(0.2, 0.8, 0.2, 1), rotate 0.9s cubic-bezier(0.3, 1.3, 0.5, 1);
}

.qa__ring {
  position: absolute;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  transition: translate 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.qa__ring--1 {
  width: 22rem;
  height: 22rem;
  left: -8rem;
  top: -9rem;
  translate: calc(var(--mx) * 26px) calc(var(--my) * 26px);
}

.qa__ring--2 {
  width: 12rem;
  height: 12rem;
  right: 18%;
  top: -4rem;
  translate: calc(var(--mx) * -20px) calc(var(--my) * -20px);
}

.qa__panel {
  position: relative;
  display: grid;
  align-items: center;
}

.qa__card {
  grid-area: 1 / 1;
  display: grid;
  gap: var(--space-3);
  padding: var(--space-6);
  border-radius: 28px;
  background: var(--gg-white);
  box-shadow: 0 26px 60px rgba(24, 37, 27, 0.25);
}

.qa__card.is-leaving {
  pointer-events: none;
}

.qa__meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0;
  font-size: var(--fs-small);
  font-weight: var(--fw-heavy);
  letter-spacing: 0.12em;
  color: var(--gg-green-deep);
}

.qa__avatar {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--gg-ink);
}

.qa__avatar img {
  width: 1.25rem;
  height: auto;
}

.qa__title {
  font-size: clamp(1.5rem, 1rem + 1.3vw, 2.25rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.qa__answer {
  margin: 0;
  font-size: var(--fs-lead);
  line-height: 1.6;
  color: var(--gg-text-muted);
}

.qa__w {
  display: inline-block;
}

.qa__card.is-typing .qa__w {
  animation: qa-word 0.45s cubic-bezier(0.2, 0.8, 0.2, 1) both;
  animation-delay: calc(var(--w, 0) * 20ms + 0.25s);
}

@keyframes qa-word {
  from { opacity: 0; translate: 0 8px; }
  to { opacity: 1; translate: 0 0; }
}

/* cards are composited layers so swaps never repaint the stage */
.qa__card {
  will-change: transform, opacity;
  backface-visibility: hidden;
}

/* after a fast flick the card that lands gives a small settle bounce */
.qa__card.is-settle {
  animation: qa-settle 0.5s cubic-bezier(0.3, 1.5, 0.5, 1);
}

@keyframes qa-settle {
  0% { scale: 0.97; }
  100% { scale: 1; }
}

.qa__foot {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.qa__step {
  display: grid;
  place-items: center;
  flex: none;
  width: var(--tap);
  height: var(--tap);
  padding: 0;
  border: 2px solid var(--gg-ink);
  border-radius: 50%;
  background: transparent;
  color: var(--gg-ink);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, translate 0.3s cubic-bezier(0.3, 1.5, 0.5, 1);
}

.qa__step svg {
  width: 1.15rem;
  height: 1.15rem;
}

.qa__step:hover {
  background: var(--gg-ink);
  color: var(--gg-white);
}

.qa__step[data-step="-1"]:hover { translate: 0 -3px; }
.qa__step[data-step="1"]:hover { translate: 0 3px; }

.qa__progress {
  flex: 1;
  height: 4px;
  overflow: hidden;
  border-radius: 4px;
  background: rgba(24, 37, 27, 0.18);
}

.qa__progress span {
  display: block;
  height: 100%;
  background: var(--gg-ink);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.qa__count {
  min-width: 4.5ch;
  font-size: var(--fs-small);
  font-weight: var(--fw-heavy);
  letter-spacing: 0.08em;
  text-align: center;
}

/* ---- Phones: accordion ------------------------------------------------------------ */
.faq--live details {
  border: 2px solid var(--gg-line);
  border-radius: var(--radius-lg);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.faq--live details[open]:not(.is-closing) {
  border-color: var(--gg-green);
  box-shadow: 0 16px 34px rgba(24, 37, 27, 0.1);
}

.faq--live details[hidden] {
  display: none;
}

.faq--live summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: var(--space-3);
  min-height: 4rem;
  padding: var(--space-3) var(--space-4);
  line-height: 1.25;
}

.faq--live summary::after {
  display: none;
}

.faq__no {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--gg-tint);
  color: var(--gg-green-deep);
  font-size: 0.75rem;
  font-weight: var(--fw-heavy);
  transition: background-color 0.3s ease, color 0.3s ease;
}

.faq--live details[open]:not(.is-closing) .faq__no {
  background: var(--gg-ink);
  color: var(--gg-green);
}

.faq__icon {
  position: relative;
  width: 2rem;
  height: 2rem;
  border: 2px solid var(--gg-ink);
  border-radius: 50%;
  transition: background-color 0.3s ease, rotate 0.45s cubic-bezier(0.3, 1.4, 0.5, 1);
}

.faq__icon::before,
.faq__icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 0.75rem;
  height: 2px;
  border-radius: 2px;
  background: var(--gg-ink);
  translate: -50% -50%;
  transition: rotate 0.45s cubic-bezier(0.3, 1.4, 0.5, 1), background-color 0.3s ease;
}

.faq__icon::after {
  rotate: 90deg;
}

.faq--live details[open]:not(.is-closing) .faq__icon {
  background: var(--gg-ink);
  rotate: 180deg;
}

.faq--live details[open]:not(.is-closing) .faq__icon::before,
.faq--live details[open]:not(.is-closing) .faq__icon::after {
  background: var(--gg-green);
}

.faq--live details[open]:not(.is-closing) .faq__icon::after {
  rotate: 0deg;
}

.faq--live .faq__answer {
  padding: 0 var(--space-4) var(--space-5) calc(var(--space-4) + 2.25rem + var(--space-3));
}

@media (prefers-reduced-motion: reduce) {
  .qa *,
  .faq--live * {
    animation: none !important;
    transition: none !important;
  }
}

/* ---- Desktop, pinned: the scroll walks through the questions (js/faq.js sets
   --qa-steps on the runway and --t / --sub on the explorer) -------------------- */
.qa-runway--pin {
  height: calc(100vh + var(--qa-steps, 4) * 45vh);
}

.qa-pin--on {
  position: sticky;
  top: calc(var(--header-h) + 1.25rem);
}

/* layered drift: the card, its title and its answer move at different speeds */
.qa-pin--on .qa__panel {
  translate: 0 calc(var(--sub, 0) * -28px);
}

.qa-pin--on .qa__title {
  translate: 0 calc(var(--sub, 0) * -12px);
}

.qa-pin--on .qa__answer {
  translate: 0 calc(var(--sub, 0) * -24px);
}

.qa-pin--on .qa__glyph {
  rotate: calc(-10deg + var(--t, 0) * 22deg);
  translate: calc(var(--mx, 0) * -36px) calc(var(--my, 0) * -36px + var(--sub, 0) * 60px);
  transition: translate 0.15s linear; /* the scroll is already eased: don't chase it */
}

.qa-pin--on .qa__ring--1 {
  translate: calc(var(--mx, 0) * 26px + var(--t, 0) * 14px) calc(var(--my, 0) * 26px + var(--t, 0) * 10px);
}

.qa-pin--on .qa__ring--2 {
  translate: calc(var(--mx, 0) * -20px - var(--t, 0) * 12px) calc(var(--my, 0) * -20px + var(--t, 0) * 16px);
}

.qa-pin--on .qa__ring {
  transition: none;
}