/* =====================================================
   КАЛЬКУЛЯТОРЫ — детальная страница и аккордеон FAQ
===================================================== */
.calc-detail {
  padding: 24px 0 60px;
}
.calc-detail .breadcrumbs {
  margin-top: 0;
  margin-bottom: 20px;
}
.calc-detail__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.calc-detail__calc {
  position: sticky;
  top: 100px;
}
.calc-detail__title {
  font-family: var(--ff-display);
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.25;
}
.calc-detail__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-bottom: 24px;
  font-size: 0.9rem;
  color: var(--text-muted);
  list-style: none;
  padding: 0;
  margin-top: 0;
}
.calc-detail__meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.calc-detail__meta-item i {
  color: var(--peach-dark);
  font-size: 0.85em;
}
.calc-detail__code {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 2px solid var(--cream-dark);
  box-shadow: var(--shadow-sm);
}
.calc-detail__nav {
  margin-top: 24px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.calc-detail__nav-link {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  border: 2px solid var(--cream-dark);
  background: var(--white);
  color: var(--text);
  font-weight: 700;
  font-size: 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition), color var(--transition);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  max-width: 100%;
}
.calc-detail__nav-link:hover {
  border-color: var(--peach);
  box-shadow: var(--shadow-md);
  color: var(--peach-dark);
}
.calc-detail__nav-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.calc-detail__nav-label i { font-size: 0.85em; }
.calc-detail__nav-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 220px;
}
.calc-detail__desc { }
.calc-detail__block {
  margin-bottom: 32px;
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 2px solid var(--cream-dark);
  background: var(--cream);
  box-shadow: var(--shadow-sm);
}
.calc-detail__block--proof {
  background: var(--sage-light);
  border-color: var(--sage);
}
/* Сворачиваемые блоки «Как работает» / «Доказательство» */
.calc-detail__block--collapsible .calc-detail__block-title-wrap { margin: 0; }
.calc-detail__block-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0;
  border: none;
  background: none;
  font-family: var(--ff-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition);
}
.calc-detail__block-toggle:hover { color: var(--peach-dark); }
.calc-detail__block-toggle:focus-visible {
  outline: 2px solid var(--peach);
  outline-offset: 2px;
}
.calc-detail__block-title-icon {
  color: var(--peach-dark);
  font-size: 1rem;
  flex-shrink: 0;
}
.calc-detail__block-title-text { flex: 1; min-width: 0; }
.calc-detail__block-toggle-icon {
  flex-shrink: 0;
  color: var(--peach-dark);
  font-size: 1rem;
  transition: transform var(--transition);
}
.calc-detail__block-toggle-icon--minus { display: none; }
.calc-detail__block--collapsible.is-open .calc-detail__block-toggle-icon--plus { display: none; }
.calc-detail__block--collapsible.is-open .calc-detail__block-toggle-icon--minus { display: inline-block; }
.calc-detail__block-body {
  overflow: hidden;
  transition: height 0.25s ease;
}
.calc-detail__block-body[hidden] { display: none; }
.calc-detail__block--collapsible .calc-detail__content { padding-top: 14px; margin-bottom: 0; }

.calc-detail__block-title {
  font-family: var(--ff-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.calc-detail__block-title i {
  color: var(--peach-dark);
  font-size: 1rem;
}
.calc-detail__content {
  color: var(--text);
  line-height: 1.6;
  font-size: 0.95rem;
}
.calc-detail__content p { margin-bottom: 0.75em; }
.calc-detail__content p:last-child { margin-bottom: 0; }
.calc-detail__content ul, .calc-detail__content ol {
  margin: 0.75em 0;
  padding-left: 1.25em;
}
.calc-detail__content ul { list-style-type: disc; }
.calc-detail__content ol { list-style-type: decimal; }
.calc-detail__content strong { color: var(--brown); }

/* FAQ */
.calc-detail__faq {
  margin-bottom: 32px;
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 2px solid var(--cream-dark);
  background: var(--lavender-light);
  box-shadow: var(--shadow-sm);
}
.calc-detail__faq .calc-detail__block-title { margin-bottom: 18px; }
.faq-accordion { margin: 0; padding: 0; list-style: none; }
.faq-accordion__item { border-bottom: 2px solid var(--text-muted); }
.faq-accordion__item:last-child { border-bottom: 0; }
.faq-accordion__item.is-open .faq-accordion__icon { transform: rotate(180deg); }
.faq-accordion__head-wrap { margin: 0; }
.faq-accordion__head {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 0;
  border: none;
  background: none;
  font-family: var(--ff-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition);
}
.faq-accordion__head:hover { color: var(--peach-dark); }
.faq-accordion__head:focus-visible { outline: 2px solid var(--peach); outline-offset: 2px; }
.faq-accordion__q-text { flex: 1; min-width: 0; }
.faq-accordion__icon {
  flex-shrink: 0;
  color: var(--peach-dark);
  font-size: 0.85rem;
  transition: transform var(--transition);
}
.faq-accordion__body { overflow: hidden; transition: height 0.25s ease; }
.faq-accordion__body[hidden] { display: none; }
.faq-accordion__a-inner {
  padding-bottom: 16px;
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--text);
}
.faq-accordion__a-inner p { margin-bottom: 0.5em; }
.faq-accordion__a-inner p:last-child { margin-bottom: 0; }

/* Похожие калькуляторы */
.calc-detail__related { margin-bottom: 32px; }
.calc-detail__related .calc-detail__block-title { margin-bottom: 14px; }
.calc-detail__related-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.calc-detail__related-item { margin: 0; }
.calc-detail__related-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 2px solid var(--cream-dark);
  background: var(--white);
  color: var(--peach-dark);
  font-weight: 700;
  text-decoration: none;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}
.calc-detail__related-link:hover {
  border-color: var(--peach);
  box-shadow: var(--shadow-md);
  background: var(--cream);
}
.calc-detail__related-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--peach-light);
  color: var(--peach-dark);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  flex-shrink: 0;
}
.calc-detail__related-title { flex: 1; min-width: 0; }

/* Оценка */
.calc-detail__reviews { margin-bottom: 0; }
.calc-detail__reviews .calc-detail__block-title { margin-bottom: 14px; }
.review-stars {
  display: inline-flex;
  gap: 6px;
  align-items: center;
}
.review-star {
  padding: 6px;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 1.5rem;
  line-height: 1;
  transition: color var(--transition), transform var(--transition);
}
.review-star:hover { transform: scale(1.1); }
.review-star:focus-visible { outline: 2px solid var(--peach); outline-offset: 2px; }
#review-thanks.calc-detail__review-thanks {
  display: none;
  margin-top: 12px;
  color: var(--sage-dark);
  font-weight: 700;
  font-size: 1rem;
}
.calc-detail__review-error {
  margin-top: 10px;
  font-size: 0.9rem;
  color: var(--peach-dark);
  font-weight: 600;
}

@media (max-width: 768px) {
  .calc-detail__layout { grid-template-columns: 1fr !important; }
  .calc-detail__calc { position: static !important; }
}