/* FAQ — categorized help center */

.faq-page {
  --faq-accent: var(--theme-teal);
  --faq-accent-2: var(--theme-blue);
  --faq-line: color-mix(in srgb, var(--color-border) 62%, transparent);
  --faq-soft: color-mix(in srgb, var(--faq-accent) 7%, var(--color-bg));
  padding-bottom: clamp(2.5rem, 6vw, 4rem);
}

#main-content:has(.faq-page) {
  background:
    radial-gradient(ellipse 68% 48% at 100% 0%, rgba(var(--rgb-blue), 0.09), transparent 55%),
    radial-gradient(ellipse 50% 40% at 0% 8%, rgba(var(--rgb-teal), 0.08), transparent 50%),
    linear-gradient(180deg, var(--faq-soft) 0%, var(--color-bg) 26%, var(--color-bg) 100%);
}

/* Hero */
.faq-hero {
  padding: clamp(2rem, 5vw, 3.25rem) 0 1.5rem;
}

.faq-hero__label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--faq-accent);
  margin-bottom: 0.55rem;
}

.faq-hero__label::before {
  content: '';
  width: 1.75rem;
  height: 1px;
  background: currentColor;
  opacity: 0.5;
}

.faq-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4.5vw, 2.75rem);
  font-weight: 500;
  line-height: 1.12;
  margin: 0 0 0.65rem;
  max-width: 18ch;
}

.faq-hero__lead {
  margin: 0 0 1rem;
  max-width: 54ch;
  font-size: clamp(1rem, 2vw, 1.1rem);
  line-height: 1.55;
  color: var(--color-text-soft);
}

.faq-hero__stats {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.65rem;
  font-size: 0.875rem;
  color: var(--color-text-soft);
}

.faq-stat strong {
  color: var(--color-text);
  font-weight: 600;
}

.faq-stat__dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--faq-line);
}

/* Layout */
.faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 280px) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: start;
}

/* Sidebar */
.faq-sidebar {
  position: sticky;
  top: calc(var(--header-height, 4rem) + 1rem);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-search__field {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.65rem 0.85rem;
  border-radius: 12px;
  border: 1px solid var(--faq-line);
  background: var(--color-surface);
  color: var(--color-text-soft);
  transition: border-color 0.18s, box-shadow 0.18s;
}

.faq-search__field:focus-within {
  border-color: color-mix(in srgb, var(--faq-accent) 45%, var(--faq-line));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--faq-accent) 12%, transparent);
  color: var(--color-text);
}

.faq-search__input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  font: inherit;
  color: inherit;
  outline: none;
}

.faq-search__input::placeholder {
  color: var(--color-text-muted, var(--color-text-soft));
  opacity: 0.85;
}

.faq-categories {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.faq-category {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  width: 100%;
  padding: 0.65rem 0.85rem;
  border-radius: 10px;
  border: 1px solid transparent;
  background: transparent;
  font: inherit;
  font-size: 0.925rem;
  font-weight: 500;
  text-align: start;
  color: var(--color-text-soft);
  cursor: pointer;
  transition: background 0.16s, border-color 0.16s, color 0.16s;
}

.faq-category:hover {
  background: color-mix(in srgb, var(--faq-accent) 6%, transparent);
  color: var(--color-text);
}

.faq-category.is-active {
  background: var(--color-surface);
  border-color: var(--faq-line);
  color: var(--color-text);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}

.faq-category__count {
  flex-shrink: 0;
  min-width: 1.5rem;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: color-mix(in srgb, var(--faq-accent) 10%, transparent);
  color: var(--faq-accent);
}

.faq-sidebar-card {
  padding: 1.1rem 1.15rem;
  border-radius: 14px;
  border: 1px solid var(--faq-line);
  background: linear-gradient(
    145deg,
    color-mix(in srgb, var(--faq-accent) 8%, var(--color-surface)),
    var(--color-surface)
  );
}

.faq-sidebar-card__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  margin: 0 0 0.45rem;
}

.faq-sidebar-card__text {
  margin: 0 0 0.85rem;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-text-soft);
}

/* Main content */
.faq-main {
  display: flex;
  flex-direction: column;
  gap: clamp(1.75rem, 4vw, 2.5rem);
  min-width: 0;
}

.faq-section__header {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  margin-bottom: 1rem;
}

.faq-section__icon {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 12px;
  background: color-mix(in srgb, var(--faq-accent) 12%, transparent);
  position: relative;
}

.faq-section__icon::after {
  content: '?';
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--faq-accent);
}

.faq-section--general .faq-section__icon {
  background: color-mix(in srgb, var(--theme-green) 12%, transparent);
}

.faq-section--general .faq-section__icon::after {
  content: '◆';
  font-size: 0.85rem;
  color: var(--theme-green);
}

.faq-section--courses .faq-section__icon {
  background: color-mix(in srgb, var(--theme-blue) 12%, transparent);
}

.faq-section--courses .faq-section__icon::after {
  content: '▶';
  font-size: 0.75rem;
  color: var(--theme-blue);
}

.faq-section--software .faq-section__icon {
  background: color-mix(in srgb, var(--theme-blue) 12%, transparent);
}

.faq-section--software .faq-section__icon::after {
  content: '⌘';
  font-size: 0.95rem;
  color: var(--theme-blue);
}

.faq-section--support .faq-section__icon {
  background: color-mix(in srgb, var(--theme-teal) 12%, transparent);
}

.faq-section--support .faq-section__icon::after {
  content: '✉';
  font-size: 0.9rem;
  color: var(--theme-teal);
}

.faq-section__title {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.5vw, 1.35rem);
  font-weight: 500;
  margin: 0 0 0.25rem;
}

.faq-section__desc {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.45;
  color: var(--color-text-soft);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.faq-page .faq-item {
  background: var(--color-surface);
  border: 1px solid var(--faq-line);
  border-radius: 14px;
  padding: 0;
  margin: 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
  overflow: hidden;
  transition: border-color 0.18s, box-shadow 0.18s;
}

.faq-page .faq-item:hover {
  border-color: color-mix(in srgb, var(--faq-accent) 28%, var(--faq-line));
}

.faq-page .faq-item[open] {
  border-color: color-mix(in srgb, var(--faq-accent) 35%, var(--faq-line));
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.06);
}

.faq-page .faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem;
  padding: 1rem 1.15rem;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.975rem;
  line-height: 1.4;
  color: var(--color-text);
}

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

.faq-page .faq-item summary::after {
  content: '+';
  flex-shrink: 0;
  width: 1.75rem;
  height: 1.75rem;
  display: grid;
  place-items: center;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 400;
  line-height: 1;
  color: var(--faq-accent);
  background: color-mix(in srgb, var(--faq-accent) 10%, transparent);
  transition: transform 0.2s, background 0.2s;
}

.faq-page .faq-item[open] summary::after {
  content: '−';
  background: color-mix(in srgb, var(--faq-accent) 18%, transparent);
}

.faq-item__answer {
  padding: 0 1.15rem 1.1rem;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-text-soft);
  border-top: 1px solid var(--faq-line);
  margin-top: 0;
  padding-top: 0.85rem;
}

.faq-item__answer p {
  margin: 0 0 0.65rem;
}

.faq-item__answer p:last-child {
  margin-bottom: 0;
}

.faq-no-results,
.faq-empty-state {
  padding: 2rem 1.25rem;
  text-align: center;
  border-radius: 14px;
  border: 1px dashed var(--faq-line);
  color: var(--color-text-soft);
  font-size: 0.95rem;
}

/* CTA */
.faq-cta {
  margin-top: clamp(2rem, 5vw, 3rem);
  padding: clamp(1.75rem, 4vw, 2.5rem) 0;
  border-top: 1px solid var(--faq-line);
}

.faq-cta__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: clamp(1.25rem, 3vw, 1.75rem) clamp(1.25rem, 3vw, 1.75rem);
  border-radius: 18px;
  border: 1px solid var(--faq-line);
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--faq-accent) 6%, var(--color-surface)),
    var(--color-surface)
  );
}

.faq-cta h2 {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.5vw, 1.4rem);
  font-weight: 500;
  margin: 0 0 0.35rem;
}

.faq-cta p {
  margin: 0;
  max-width: 48ch;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--color-text-soft);
}

.faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

/* Responsive */
@media (max-width: 960px) {
  .faq-layout {
    grid-template-columns: 1fr;
  }

  .faq-sidebar {
    position: static;
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }

  .faq-categories {
    flex-direction: row;
    flex-wrap: nowrap;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 0.25rem;
    margin: 0 -0.25rem;
    padding-inline: 0.25rem;
  }

  .faq-categories::-webkit-scrollbar {
    display: none;
  }

  .faq-category {
    flex: 0 0 auto;
    width: auto;
    white-space: nowrap;
    padding: 0.55rem 0.85rem;
    border: 1px solid var(--faq-line);
    background: var(--color-surface);
  }

  .faq-category.is-active {
    border-color: color-mix(in srgb, var(--faq-accent) 40%, var(--faq-line));
  }

  .faq-sidebar-card {
    order: 3;
  }
}

@media (max-width: 640px) {
  .faq-hero h1 {
    max-width: none;
  }

  .faq-cta__inner {
    flex-direction: column;
    align-items: stretch;
  }

  .faq-cta__actions {
    width: 100%;
  }

  .faq-cta__actions .btn {
    flex: 1;
    justify-content: center;
  }
}

/* RTL */
html[dir="rtl"] .faq-hero__label,
html[dir="rtl"] .faq-section__title,
html[dir="rtl"] .faq-hero h1 {
  letter-spacing: 0;
}

html[dir="rtl"] .faq-hero__label {
  text-transform: none;
  letter-spacing: 0;
}