/* ============================================
   KWT Labs — FAQ Center
   ============================================ */

.faq-hero h1 .text-gradient {
  background: linear-gradient(90deg, #0F6FFF 0%, #06b6d4 55%, #16C784 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.faq-hero {
  padding-top: calc(var(--header-h) + 48px);
  padding-bottom: 48px;
  background:
    radial-gradient(ellipse 70% 60% at 85% 10%, rgba(15, 111, 255, 0.12) 0%, transparent 55%),
    radial-gradient(ellipse 50% 40% at 5% 90%, rgba(255, 61, 61, 0.06) 0%, transparent 50%),
    linear-gradient(180deg, #eef4ff 0%, var(--white) 100%);
}

.faq-hero__inner {
  max-width: 640px;
}

.faq-hero h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: 12px;
}

.faq-hero__lead {
  font-size: 1.0625rem;
  color: var(--gray-500);
  line-height: 1.75;
  margin-bottom: 28px;
}

.faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.faq-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--gray-500);
  margin-bottom: 20px;
}

.faq-breadcrumb a {
  color: var(--primary);
}

.faq-breadcrumb a:hover {
  text-decoration: underline;
}

/* Search */
.faq-search {
  position: relative;
  max-width: 560px;
}

.faq-search--compact {
  max-width: none;
}

.faq-search__wrap {
  position: relative;
}

.faq-search__icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}

.faq-search__icon .icon {
  width: 20px;
  height: 20px;
  color: var(--gray-400);
}

.faq-search__input {
  width: 100%;
  padding: 16px 20px 16px 50px;
  font-size: 1rem;
  font-family: var(--font);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  background: var(--white);
  color: var(--dark);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.faq-search--compact .faq-search__input {
  padding: 12px 16px 12px 44px;
  font-size: 0.9375rem;
}

.faq-search__input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(15, 111, 255, 0.12);
}

.faq-search__hint {
  font-size: 0.8125rem;
  color: var(--gray-400);
  margin-top: 8px;
}

.faq-search__results {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: 200;
  overflow: hidden;
}

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

.faq-search__hit {
  display: block;
  padding: 14px 20px;
  border-bottom: 1px solid var(--gray-100);
  transition: background var(--transition);
}

.faq-search__hit:last-child { border-bottom: none; }

.faq-search__hit:hover {
  background: var(--primary-light);
}

.faq-search__hit strong {
  display: block;
  font-size: 0.9375rem;
  color: var(--dark);
  margin-bottom: 2px;
}

.faq-search__hit span {
  font-size: 0.75rem;
  color: var(--gray-500);
}

.faq-search__empty {
  padding: 20px;
  font-size: 0.875rem;
  color: var(--gray-500);
  text-align: center;
}

/* Sticky search */
.faq-search-sticky {
  position: sticky;
  top: var(--header-h);
  z-index: 90;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-100);
  padding: 12px 0;
  box-shadow: var(--shadow-sm);
}

.faq-search-sticky[hidden] { display: none; }

/* Popular cards */
.faq-popular {
  padding: 40px 0;
  border-bottom: 1px solid var(--gray-100);
}

.faq-section-title {
  font-size: 1.375rem;
  margin-bottom: 24px;
}

.faq-popular__grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}

.faq-popular-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  padding: 20px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.faq-popular-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.faq-popular-card__icon .icon {
  width: 24px;
  height: 24px;
  color: var(--primary);
}

.faq-popular-card__label {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--dark);
}

.faq-popular-card__count {
  font-size: 0.75rem;
  color: var(--gray-400);
}

/* Product browse */
.faq-browse {
  padding: 48px 0;
}

.faq-browse--products {
  background: var(--gray-50);
}

.faq-product-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.faq-product-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.faq-product-card__icon .icon {
  width: 28px;
  height: 28px;
  color: var(--primary);
}

.faq-product-card h3 {
  font-size: 1rem;
  margin: 0;
}

.faq-product-card p {
  font-size: 0.8125rem;
  color: var(--gray-500);
  line-height: 1.6;
  flex: 1;
  margin: 0;
}

.faq-product-card__count {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gray-400);
}

.faq-product-card__link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  margin-top: 4px;
}

.faq-product-card__link:hover {
  text-decoration: underline;
}

/* Category tabs */
.faq-category-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.faq-category-tab {
  padding: 8px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  font-family: var(--font);
  border: 1px solid var(--gray-200);
  border-radius: 999px;
  background: var(--white);
  color: var(--gray-600);
  cursor: pointer;
  transition: all var(--transition);
}

.faq-category-tab:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.faq-category-tab.is-active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
}

/* Layout */
.faq-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
  align-items: start;
  padding: 48px 0 80px;
}

.faq-sidebar {
  position: sticky;
  top: calc(var(--header-h) + 72px);
}

.faq-sidebar__label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gray-400);
  margin-bottom: 12px;
}

.faq-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.faq-nav a {
  display: block;
  padding: 8px 12px;
  font-size: 0.875rem;
  color: var(--gray-600);
  border-radius: var(--radius-sm);
  border-left: 2px solid transparent;
  transition: all var(--transition);
}

.faq-nav a:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.faq-nav a.is-active {
  color: var(--primary);
  font-weight: 600;
  border-left-color: var(--primary);
  background: var(--primary-light);
}

.faq-sidebar__help {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--gray-200);
  font-size: 0.8125rem;
}

.faq-sidebar__help p {
  color: var(--gray-500);
  margin-bottom: 8px;
}

.faq-sidebar__help a {
  display: block;
  color: var(--primary);
  font-weight: 500;
  padding: 4px 0;
}

.faq-sidebar__help a:hover {
  text-decoration: underline;
}

.faq-nav-mobile {
  display: none;
  flex-wrap: nowrap;
  overflow-x: auto;
  gap: 8px;
  padding-bottom: 16px;
  margin-bottom: 24px;
  -webkit-overflow-scrolling: touch;
}

.faq-nav-mobile a {
  flex-shrink: 0;
  padding: 8px 14px;
  font-size: 0.8125rem;
  font-weight: 500;
  border: 1px solid var(--gray-200);
  border-radius: 999px;
  color: var(--gray-600);
  white-space: nowrap;
}

.faq-nav-mobile a.is-active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
}

.faq-sub-count {
  font-size: 0.875rem;
  color: var(--gray-500);
  margin-bottom: 24px;
}

/* FAQ sections & accordion */
.faq-section {
  margin-bottom: 48px;
  scroll-margin-top: calc(var(--header-h) + 80px);
}

.faq-section.is-hidden {
  display: none;
}

.faq-section h2 {
  font-size: 1.5rem;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--gray-100);
}

.faq-accordion .faq-item {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--white);
  scroll-margin-top: calc(var(--header-h) + 80px);
}

.faq-accordion .faq-item.is-hidden {
  display: none;
}

.faq-accordion .faq-item[open] {
  border-color: rgba(15, 111, 255, 0.35);
  box-shadow: 0 4px 20px rgba(15, 111, 255, 0.08);
}

.faq-accordion .faq-item summary {
  padding: 18px 24px;
  font-weight: 600;
  font-size: 1rem;
  color: var(--dark);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.faq-accordion .faq-item summary::-webkit-details-marker { display: none; }

.faq-accordion .faq-item summary::after {
  content: '+';
  color: var(--primary);
  font-size: 1.25rem;
  font-weight: 400;
  flex-shrink: 0;
}

.faq-accordion .faq-item[open] summary::after { content: '−'; }

.faq-item__body {
  padding: 0 24px 20px;
}

.faq-item__answer {
  font-size: 0.9375rem;
  color: var(--gray-600);
  line-height: 1.75;
  margin-bottom: 16px;
}

/* Related links */
.faq-related {
  padding-top: 12px;
  border-top: 1px solid var(--gray-100);
  margin-bottom: 16px;
}

.faq-related__label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray-400);
  margin-bottom: 8px;
}

.faq-related__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.faq-related__list a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--primary);
}

.faq-related__list a:hover {
  text-decoration: underline;
}

/* Helpful votes */
.faq-helpful {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.faq-helpful__label {
  font-size: 0.8125rem;
  color: var(--gray-500);
}

.faq-helpful__btn {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition);
  line-height: 1;
}

.faq-helpful__btn:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}

.faq-helpful__btn.is-voted {
  border-color: var(--primary);
  background: var(--primary-light);
}

.faq-helpful__thanks {
  font-size: 0.8125rem;
  color: var(--primary);
  font-weight: 500;
}

/* CTA */
.faq-cta {
  background: linear-gradient(135deg, #0F6FFF 0%, #0858d4 100%);
  border-radius: var(--radius-xl);
  padding: 48px;
  text-align: center;
  color: var(--white);
  margin-top: 32px;
}

.faq-cta h2 {
  font-size: 1.75rem;
  margin-bottom: 12px;
  color: var(--white);
  border: none;
  padding: 0;
}

.faq-cta p {
  font-size: 1.0625rem;
  opacity: 0.9;
  margin-bottom: 28px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.btn--outline-light {
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.6);
  color: var(--white);
}

.btn--outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--white);
}

/* Responsive */
@media (max-width: 1100px) {
  .faq-popular__grid { grid-template-columns: repeat(3, 1fr); }
  .faq-product-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .faq-layout { grid-template-columns: 1fr; }
  .faq-sidebar { display: none; }
  .faq-nav-mobile { display: flex; }
  .faq-sidebar { top: calc(var(--header-h) + 20px); }
}

@media (max-width: 640px) {
  .faq-popular__grid { grid-template-columns: repeat(2, 1fr); }
  .faq-product-grid { grid-template-columns: 1fr; }
  .faq-cta { padding: 32px 24px; }
  .faq-accordion .faq-item summary {
    padding: 16px 18px;
    font-size: 0.9375rem;
  }
  .faq-item__body { padding: 0 18px 16px; }
}