/* ============================================================
   KB — AEO knowledge-base pages (v=3)
   Question-answer pages. One page = one concrete question.
   Reuses design tokens from base.css (u3 font, dark + gold).
   v3: mobile hardening (tap targets, overflow guards, ≤480px tweaks).
   ============================================================ */

:root {
  --kb-maxw: 880px;
  --kb-card: rgba(255, 231, 186, 0.04);
  --kb-card-border: rgba(255, 231, 186, 0.14);
}

/* ── Layout ── */
.kb-main { position: relative; z-index: 1; }
.kb-wrap {
  max-width: var(--kb-maxw);
  margin: 0 auto;
  padding: 0 20px;
}

/* ── Breadcrumb ── */
.kb-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 13px;
  color: var(--text-muted);
  padding-top: 26px;
}
.kb-breadcrumb a { color: var(--text-muted); text-decoration: none; }
.kb-breadcrumb a:hover { color: var(--gold-light); }
.kb-breadcrumb__sep { opacity: 0.5; }

/* ── Hero ── */
.kb-hero { padding: 30px 0 26px; }
.kb-hero__badge {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold-light);
  border: 1px solid var(--kb-card-border);
  border-radius: 999px;
  padding: 8px 16px;
  background: var(--kb-card);
}
.kb-hero__title {
  margin: 18px 0 0;
  font-size: clamp(28px, 5vw, 44px);
  line-height: 1.12;
  text-transform: uppercase;
  color: var(--gold-light);
}
.kb-hero__topic {
  margin-top: 14px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.55;
}

/* ── Short answer box (the AEO core) ── */
.kb-answer {
  margin-top: 26px;
  padding: 22px 24px;
  border: 1px solid rgba(255, 166, 0, 0.35);
  border-left: 4px solid var(--gold);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255, 166, 0, 0.08), rgba(255, 166, 0, 0.02));
}
.kb-answer__label {
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 8px;
}
.kb-answer__text {
  margin: 0;
  font-size: 17px;
  line-height: 1.6;
  color: var(--gold-light);
}
.kb-answer__more { color: #fff; }

/* ── Facts cards ── */
.kb-facts {
  margin-top: 30px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 14px;
}
.kb-fact {
  background: var(--kb-card);
  border: 1px solid var(--kb-card-border);
  border-radius: 14px;
  padding: 16px 18px;
}
.kb-fact__value {
  font-size: 26px;
  font-weight: 700;
  color: var(--gold);
  line-height: 1.1;
}
.kb-fact__label {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.45;
  color: var(--text-muted);
}

/* ── Sections ── */
.kb-section { padding: 34px 0 6px; }
.kb-section__title {
  font-size: clamp(20px, 3vw, 26px);
  color: var(--gold-light);
  text-transform: uppercase;
  line-height: 1.25;
  margin: 0 0 14px;
}
.kb-section p { color: #e9dfc7; line-height: 1.7; }
.kb-section p + p { margin-top: 10px; }
.kb-section a { color: var(--gold); }
.kb-section ul, .kb-section ol { color: #e9dfc7; line-height: 1.7; padding-left: 22px; }
.kb-section li + li { margin-top: 6px; }
.kb-section strong { color: var(--gold-light); }

/* ── FAQ spoilers ── */
.kb-faq { padding: 30px 0 6px; }
.kb-faq__item {
  background: var(--kb-card);
  border: 1px solid var(--kb-card-border);
  border-radius: 12px;
  overflow: hidden;
}
.kb-faq__item + .kb-faq__item { margin-top: 10px; }
.kb-faq__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  color: var(--gold-light);
  font-size: 16px;
  line-height: 1.4;
}
.kb-faq__summary::-webkit-details-marker { display: none; }
.kb-faq__summary::after {
  content: "";
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--gold);
  border-bottom: 2px solid var(--gold);
  transform: rotate(45deg);
  transition: transform 0.2s ease;
  flex: 0 0 auto;
}
.kb-faq__item[open] .kb-faq__summary::after { transform: rotate(225deg); }
.kb-faq__answer { padding: 0 18px 16px; color: #e9dfc7; line-height: 1.65; }

/* ── Sources ── */
.kb-sources { padding: 30px 0 6px; }
.kb-sources__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}
.kb-source {
  display: block;
  text-decoration: none;
  background: var(--kb-card);
  border: 1px solid var(--kb-card-border);
  border-radius: 12px;
  padding: 14px 16px;
}
.kb-source:hover { border-color: rgba(255, 166, 0, 0.45); }
.kb-source__name { color: var(--gold-light); font-size: 14px; line-height: 1.4; }
.kb-source__ref { display: block; margin-top: 6px; color: var(--text-muted); font-size: 12px; }

/* ── CTA ── */
.kb-cta { padding: 36px 0 60px; }
.kb-cta__card {
  border: 1px solid rgba(255, 166, 0, 0.4);
  border-radius: 16px;
  padding: 26px 28px;
  background: linear-gradient(180deg, rgba(255, 166, 0, 0.1), rgba(255, 166, 0, 0.03));
  text-align: center;
}
.kb-cta__title { margin: 0; color: var(--gold-light); font-size: 22px; font-weight: 700; }
.kb-cta__text { margin: 10px 0 18px; color: var(--text-muted); line-height: 1.55; }
.kb-cta__btn {
  display: inline-block;
  background: var(--gold);
  color: var(--btn-text);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-decoration: none;
  border-radius: 10px;
  padding: 13px 26px;
}
.kb-cta__btn:hover { background: var(--gold-light); }
.kb-cta__secondary {
  display: inline-block;
  margin: 12px 0 0 14px;
  color: var(--text-muted);
  font-size: 14px;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ── Related links ── */
.kb-related { padding: 26px 0 6px; }
.kb-related__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.kb-related__list a { color: #e9dfc7; text-decoration: none; border-bottom: 1px dashed rgba(255, 231, 186, 0.25); }
.kb-related__list a:hover { color: var(--gold-light); }

/* ── Site links (картки головних сторінок сайту) ── */
.kb-sitelinks { padding: 26px 0 6px; }
.kb-sitelinks__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}
.kb-sitelinks__card {
  display: block;
  text-decoration: none;
  background: var(--kb-card);
  border: 1px solid var(--kb-card-border);
  border-radius: 12px;
  padding: 14px 16px;
}
.kb-sitelinks__card:hover { border-color: rgba(255, 166, 0, 0.45); }
.kb-sitelinks__title { color: var(--gold-light); font-size: 15px; font-weight: 700; }
.kb-sitelinks__desc { display: block; margin-top: 6px; color: var(--text-muted); font-size: 13px; line-height: 1.5; }

/* ── Side float (uses decom/vac pattern, kb variant) ── */
.kb-side-float {
  position: fixed;
  right: 0;
  bottom: 90px;
  z-index: 50;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  text-decoration: none;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  background: var(--gold);
  color: var(--btn-text);
  font-weight: 600;
  padding: 14px 8px;
  border-radius: 10px 0 0 10px;
}
.kb-side-float__tag { font-size: 12px; letter-spacing: 0.04em; }
.kb-side-float__link { font-size: 13px; font-weight: 700; }
.kb-side-float__link svg { writing-mode: horizontal-tb; display: none; }
@media (max-width: 767px) { .kb-side-float { display: none; } }

/* ── Mobile hardening ── */
.kb-main { overflow-x: clip; }
.kb-wrap { overflow-wrap: break-word; }
.kb-related__list a { display: block; padding: 10px 0; }
@media (max-width: 480px) {
  .kb-wrap { padding: 0 16px; }
  .kb-answer { padding: 18px; }
  .kb-answer__text { font-size: 16px; }
  .kb-cta__card { padding: 22px 18px; }
  .kb-cta__btn { display: block; width: 100%; padding: 15px 18px; }
  .kb-cta__secondary { display: block; margin: 12px 0 0; }
  .kb-faq__summary { font-size: 15px; padding: 15px 16px; }
}