.faq-kb {
  --faq-bg: #0b0f17;
  --faq-surface: rgba(255, 255, 255, 0.06);
  --faq-surface-strong: rgba(255, 255, 255, 0.1);
  --faq-border: rgba(255, 255, 255, 0.16);
  --faq-text: #edf3fb;
  --faq-muted: #a9b5c6;
  --faq-accent: #7de6ff;
  --faq-accent-2: #84a9ff;
  --faq-shadow: 0 22px 48px rgba(1, 4, 12, 0.44);
  --faq-radius-scale: 0.8;
  --faq-radius: calc(18px * var(--faq-radius-scale));
  position: relative;
  margin-top: 2.4rem;
  border-radius: calc(28px * var(--faq-radius-scale));
  border: 1px solid rgba(255, 255, 255, 0.1);
  background:
    radial-gradient(1200px 350px at 8% -5%, rgba(125, 230, 255, 0.16), transparent 62%),
    radial-gradient(980px 300px at 92% -10%, rgba(132, 169, 255, 0.16), transparent 65%),
    var(--faq-bg);
  color: var(--faq-text);
  padding: 1.1rem;
  overflow: clip;
}

.faq-kb::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.08;
  background-image: radial-gradient(circle, rgba(255, 255, 255, 0.7) 0.7px, transparent 0.7px);
  background-size: 20px 20px;
}

.faq-progress {
  position: sticky;
  top: 0;
  z-index: 6;
  height: 3px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  overflow: hidden;
}

.faq-progress__bar {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--faq-accent), var(--faq-accent-2));
  transition: width 0.18s linear;
}

.faq-shell {
  position: relative;
  z-index: 1;
}

.faq-toolbar {
  position: sticky;
  top: 0.65rem;
  z-index: 5;
  margin-top: 0.8rem;
  padding: 0.85rem;
  border-radius: calc(16px * var(--faq-radius-scale));
  border: 1px solid var(--faq-border);
  background: rgba(8, 12, 20, 0.82);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.faq-title {
  margin: 0;
  font-size: clamp(1.45rem, 2.5vw, 2.1rem);
}

.faq-intro {
  margin: 0.45rem 0 0;
  color: var(--faq-muted);
}

.faq-search-row {
  margin-top: 0.85rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.7rem;
}

.faq-search {
  border: 1px solid var(--faq-border);
  border-radius: calc(12px * var(--faq-radius-scale));
  padding: 0.67rem 0.74rem;
  background: rgba(255, 255, 255, 0.06);
  color: var(--faq-text);
}

.faq-search:focus-visible,
.faq-chip:focus-visible,
.faq-action:focus-visible,
.faq-accordion__trigger:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.72);
  outline-offset: 2px;
}

.faq-search-meta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--faq-muted);
  font-size: 0.84rem;
}

.faq-control-row {
  margin-top: 0.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.faq-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.faq-chip {
  border: 1px solid var(--faq-border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--faq-text);
  border-radius: 999px;
  padding: 0.3rem 0.68rem;
  cursor: pointer;
  font-size: 0.8rem;
  transition: transform 0.2s ease, background 0.2s ease;
}

.faq-chip:hover {
  transform: translateY(-1px);
}

.faq-chip.is-active {
  background: rgba(255, 255, 255, 0.26);
}

.faq-actions {
  display: inline-flex;
  gap: 0.45rem;
}

.faq-action {
  border: 1px solid var(--faq-border);
  background: rgba(255, 255, 255, 0.08);
  color: var(--faq-text);
  border-radius: calc(10px * var(--faq-radius-scale));
  padding: 0.34rem 0.6rem;
  cursor: pointer;
  font-size: 0.8rem;
}

.faq-loading {
  margin-top: 1rem;
  display: grid;
  gap: 0.65rem;
}

.faq-skeleton {
  height: 78px;
  border-radius: calc(14px * var(--faq-radius-scale));
  border: 1px solid var(--faq-border);
  background: linear-gradient(100deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.03));
  background-size: 230% 100%;
  animation: faq-shimmer 1.25s linear infinite;
}

@keyframes faq-shimmer {
  to { background-position: -230% 0; }
}

.faq-pill {
  border: 1px solid var(--faq-border);
  background: rgba(255, 255, 255, 0.07);
  border-radius: 999px;
  padding: 0.2rem 0.56rem;
  font-size: 0.75rem;
  color: var(--faq-muted);
}

.faq-list {
  margin-top: 1rem;
  display: grid;
  gap: 0.65rem;
}

.faq-accordion {
  border-radius: calc(15px * var(--faq-radius-scale));
  border: 1px solid var(--faq-border);
  background: var(--faq-surface);
  overflow: hidden;
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.2);
  opacity: 0;
  transform: translateY(10px) scale(0.985);
  transition: opacity 0.28s ease, transform 0.28s ease, border-color 0.2s ease;
}

.faq-accordion.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.faq-accordion:hover {
  border-color: rgba(255, 255, 255, 0.34);
}

.faq-accordion__trigger {
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--faq-text);
  text-align: left;
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 0.6rem;
  align-items: center;
  padding: 0.85rem;
  cursor: pointer;
}

.faq-badge {
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.08);
  color: var(--faq-muted);
  padding: 0.2rem 0.48rem;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  animation: faq-badge-pulse 2.8s ease-in-out infinite;
}

@keyframes faq-badge-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(125, 230, 255, 0); }
  50% { box-shadow: 0 0 0 5px rgba(125, 230, 255, 0.08); }
}

.faq-chevron {
  color: var(--faq-muted);
  transition: transform 0.22s ease;
}

.faq-accordion.is-open .faq-chevron {
  transform: rotate(90deg);
}

.faq-accordion__panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.28s ease, overflow 0s 0.28s;
}

.faq-accordion__body {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0.85rem;
  display: grid;
  gap: 0.75rem;
}

.faq-source-wrap details {
  border: 1px solid var(--faq-border);
  border-radius: calc(12px * var(--faq-radius-scale));
  background: rgba(255, 255, 255, 0.04);
  padding: 0.45rem 0.56rem;
}

.faq-source-wrap summary {
  cursor: pointer;
  color: var(--faq-muted);
}

.faq-source-list {
  margin: 0.58rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.45rem;
}

.faq-source-item {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: calc(12px * var(--faq-radius-scale));
  padding: 0.48rem;
  background: rgba(255, 255, 255, 0.03);
}

.faq-source-item a {
  color: var(--faq-accent);
}

.faq-tools {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.faq-tool {
  border: 1px solid var(--faq-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--faq-text);
  font-size: 0.74rem;
  padding: 0.22rem 0.55rem;
  cursor: pointer;
}

.faq-no-results {
  margin-top: 0.9rem;
  border: 1px solid var(--faq-border);
  border-radius: var(--faq-radius);
  background: var(--faq-surface);
  padding: 0.9rem;
}

.faq-no-results h3 {
  margin: 0;
}

.faq-suggestions {
  margin-top: 0.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.faq-suggestions button {
  border: 1px solid var(--faq-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  color: var(--faq-text);
  padding: 0.22rem 0.56rem;
  font-size: 0.76rem;
  cursor: pointer;
}

.faq-secondary-grid {
  margin-top: 0.9rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
}

.faq-panel {
  border: 1px solid var(--faq-border);
  border-radius: var(--faq-radius);
  background: var(--faq-surface);
  padding: 0.8rem;
}

.faq-panel h3 {
  margin: 0;
  font-size: 0.98rem;
}

.faq-panel ul {
  margin: 0.55rem 0 0;
  padding-left: 1rem;
  color: var(--faq-muted);
}

.faq-hidden {
  display: none !important;
}

@media (max-width: 980px) {
  .faq-secondary-grid {
    grid-template-columns: 1fr;
  }

  .faq-search-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .faq-kb {
    padding: 0.8rem;
  }

  .faq-toolbar {
    top: 0.35rem;
    padding: 0.7rem;
  }

  .faq-accordion__trigger {
    grid-template-columns: 1fr auto;
  }

  .faq-badge {
    grid-column: 1 / -1;
    width: max-content;
  }
}

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