/* ============================================================
   VCC, Adopters / Social Proof section
   Infinite marquee logo strip, category groupings
   ============================================================ */

.adopters {
  padding-block: clamp(60px, 8vw, 100px);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
  position: relative;
  overflow: hidden;
}

.adopters__head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto var(--space-5);
}

.adopters__title {
  font-size: var(--fs-secondary);
  font-weight: var(--fw-light);
  line-height: var(--lh-heading);
  letter-spacing: var(--ls-heading);
  color: var(--text-primary);
  margin-top: var(--space-3);
  text-wrap: balance;
  max-width: 32ch;
  margin-inline: auto;
}

.adopters__title .accent {
  color: var(--accent);
  font-weight: var(--fw-regular);
}

/* ---------- Category tabs ---------- */

.adopters__tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-7);
}

.adopters__tab {
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: var(--fs-caption);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-out);
}

.adopters__tab:hover {
  border-color: var(--border-strong);
  color: var(--text-secondary);
}

.adopters__tab.is-active {
  border-color: var(--border-accent);
  color: var(--accent);
  background: rgba(116, 219, 139, 0.06);
}

/* ---------- Marquee strip ---------- */

.adopters__marquee {
  position: relative;
  mask-image: linear-gradient(
    to right,
    transparent 0%,
    black 12%,
    black 88%,
    transparent 100%
  );
  -webkit-mask-image: linear-gradient(
    to right,
    transparent 0%,
    black 12%,
    black 88%,
    transparent 100%
  );
}

.adopters__track {
  display: flex;
  gap: var(--space-7);
  animation: adopters-scroll 60s linear infinite;
  width: max-content;
  padding-block: var(--space-3);
}

.adopters__track:hover {
  animation-play-state: paused;
}

@keyframes adopters-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.adopters__logo {
  flex-shrink: 0;
  height: 52px;
  min-width: 140px;
  padding: 0 var(--space-5);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-brand);
  font-size: 1.375rem;
  font-weight: var(--fw-regular);
  letter-spacing: -0.01em;
  color: var(--text-secondary);
  opacity: 0.7;
  transition: opacity var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
  white-space: nowrap;
  position: relative;
}

.adopters__logo:hover {
  opacity: 1;
  color: var(--text-primary);
}

/* Category dot marker above each logo name */
.adopters__logo::before {
  content: "";
  position: absolute;
  top: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-out);
}

.adopters__logo:hover::before { opacity: 0.8; }

.adopters__logo[data-cat="methodology"]::before { background: var(--accent); }
.adopters__logo[data-cat="enterprise"]::before  { background: var(--verified); }
.adopters__logo[data-cat="auditor"]::before     { background: var(--ew-purple-200); }
.adopters__logo[data-cat="registry"]::before    { background: #E8A840; }

/* ---------- Category legend ---------- */

.adopters__legend {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-6);
  margin-top: var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--fs-caption);
  color: var(--text-muted);
}

.adopters__legend-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.adopters__legend-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

/* ---------- Footnote ---------- */

.adopters__note {
  text-align: center;
  font-size: var(--fs-caption);
  color: var(--text-dim);
  font-style: italic;
  margin-top: var(--space-5);
  font-family: var(--font-brand);
}

@media (prefers-reduced-motion: reduce) {
  .adopters__track { animation: none; }
}

@media (max-width: 720px) {
  .adopters__logo { font-size: 1.125rem; min-width: 110px; padding: 0 var(--space-4); }
  .adopters__track { gap: var(--space-5); }
  .adopters__legend { gap: var(--space-4); font-size: 11px; }
}