/* Sections — the shared section frame and the editorial blocks.
   Section scaffolding and headings, the numbered How-it-works rows, the
   floating category cluster and its chips, the What's-inside fact grid,
   the FAQ list, and the footer.

   Part of the stylesheet split described in index.html; the <link> order
   there is the cascade order, so this file expects everything above it to
   have loaded first. */

/* ---------- Section scaffolding ---------- */
.section {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: var(--section-pad) var(--gutter) 0;
}
.section:last-of-type {
  padding-bottom: var(--section-pad);
}

.section__head {
  margin-bottom: 2.75rem;
}
.section__head--center {
  text-align: center;
  max-width: 34rem;
  margin-inline: auto;
}
.section__head--row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.85rem;
  margin-bottom: 1.1rem;
  border-radius: 999px;
  background: var(--coral-wash);
  color: var(--coral);
  font-size: 0.8125rem;
  font-weight: 600;
}

.section__title {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.section__sub {
  margin-top: 1rem;
  max-width: 34rem;
  color: var(--muted);
}
.section__head--center .section__sub {
  margin-inline: auto;
}
.section__sub--tight {
  margin-top: 0;
  max-width: 20rem;
}

/* ---------- Categories ---------- */
.section--cluster {
  position: relative;
  isolation: isolate;
  /* Extra room above for the floating chips to occupy. */
  padding-top: calc(var(--section-pad) + clamp(1.5rem, 4vw, 3.5rem));
}

/* Real product logos floating in a band above the heading — never behind
   it, so nothing lands on top of a sentence. The band bleeds past the
   content column. Positions come from js/app.js. */
.cluster {
  position: absolute;
  top: clamp(2.5rem, 6vw, 4.5rem);
  left: -6vw;
  right: -6vw;
  height: 13rem;
  z-index: -1;
}

/* Each chip drifts on its own clock — js/app.js hands every one a
   different duration, delay and tilt, so the cluster never pulses in
   unison the way a single shared animation would.
   
   Depth comes from the chip itself: the ones hanging lower are further
   away, so they are drawn smaller and fainter as whole objects. This layer
   used to carry a gradient mask instead, which faded chips across their own
   middles — a hard-edged disc cut halfway down reads as a rendering fault
   rather than as distance, and in the dark theme the remaining half turned
   into a grey smear. `scale` is its own property, so it composes with the
   translate/rotate the float keyframe owns. */
.cluster__chip {
  position: absolute;
  display: grid;
  place-items: center;
  width: 3.6rem;
  height: 3.6rem;
  border-radius: 50%;
  background: var(--chip-face);
  box-shadow: var(--shadow-card);
  opacity: var(--o, 1);
  scale: var(--s, 1);
  animation: chip-float var(--t, 8s) ease-in-out var(--d, 0s) infinite;
}

@keyframes chip-float {
  50% {
    transform: translate(var(--dx, 0px), var(--dy, -16px)) rotate(var(--r, 4deg));
  }
}
.cluster__chip img {
  width: 1.8rem;
  height: 1.8rem;
}

.cats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
  max-width: 52rem;
  margin: 0 auto;
}

.cats a {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.6rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  transition: border-color var(--fast) var(--ease),
    transform var(--fast) var(--ease);
}
.cats a:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
}
.cats span {
  color: var(--muted);
  font-size: 0.8125rem;
  font-variant-numeric: tabular-nums;
}

/* ---------- FAQ ---------- */
.faq {
  max-width: 46rem;
  border-top: 1px solid var(--line);
}

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

.faq__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.4rem 0;
  font-size: 1.1875rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  cursor: pointer;
  list-style: none;
}
.faq__q::-webkit-details-marker {
  display: none;
}

/* A plus that rotates into a minus — motion that reports what changed. */
.faq__q::after {
  content: "";
  width: 0.9rem;
  height: 0.9rem;
  flex: none;
  background: linear-gradient(var(--ink), var(--ink)) center / 100% 1.5px
      no-repeat,
    linear-gradient(var(--ink), var(--ink)) center / 1.5px 100% no-repeat;
  transition: transform var(--base) var(--ease);
}
.faq__item[open] .faq__q::after {
  transform: rotate(135deg);
}

.faq__a {
  padding-bottom: 1.5rem;
  max-width: 38rem;
  color: var(--muted);
}

/* ---------- Footer ---------- */
.footer {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter) 1rem;
  overflow: hidden;
}

.footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2.5rem;
  padding-top: 3rem;
  border-top: 1px solid var(--line);
}

.footer__intro .nav__brand {
  color: var(--ink);
  margin-bottom: 0.9rem;
}
.footer__intro p {
  max-width: 22rem;
  color: var(--muted);
  font-size: 0.9375rem;
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  font-size: 0.9375rem;
}
.footer__col a {
  color: var(--muted);
  text-decoration: none;
}
.footer__col a:hover {
  color: var(--ink);
}
.footer__col p {
  color: var(--muted);
}

.footer__h {
  font-family: var(--sans);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.15rem;
}

.footer__wordmark {
  margin: 1.25rem 0 0;
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(5rem, 21vw, 17rem);
  line-height: 0.92;
  text-align: center;
  letter-spacing: -0.02em;
  background: linear-gradient(180deg, var(--ink) 8%, transparent 88%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  user-select: none;
}