/* ============================================
   blog.css — Стили блога EdWord
   Страница индекса блога + шаблон статьи
   ============================================ */

/* --- Прогресс-бар чтения --- */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--primary-fixed));
  z-index: 200;
  transition: width 50ms linear;
}

/* --- Хлебные крошки --- */
.breadcrumb {
  max-width: 720px;
  margin: 0 auto;
  padding: 6.5rem 1.5rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--body-sm);
  color: var(--on-surface-variant);
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--on-surface-variant);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.breadcrumb__sep {
  color: var(--outline-variant);
  font-size: 0.75rem;
}

.breadcrumb__current {
  color: var(--on-surface);
  font-weight: 500;
}

@media (min-width: 768px) {
  .breadcrumb {
    padding-top: 7.5rem;
  }
}

/* --- Статья --- */
.article {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}

.article__header {
  margin-bottom: 2.5rem;
}

.article__category {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: rgba(81, 102, 0, 0.08);
  color: var(--primary-fixed);
  font-size: var(--label-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
}

.article__title {
  font-size: var(--display-sm);
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.article__meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: var(--body-sm);
  color: var(--on-surface-variant);
  flex-wrap: wrap;
}

.article__meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}

.article__meta-dot {
  width: 3px;
  height: 3px;
  background: var(--outline-variant);
  border-radius: 50%;
}

@media (min-width: 768px) {
  .article__title {
    font-size: var(--display-md);
  }
}

/* --- Оглавление (Table of Contents) --- */
.toc {
  margin-bottom: 2.5rem;
  padding: 1.5rem 2rem;
  background: var(--surface-container-lowest);
  border-radius: var(--radius-xl);
  border-left: 3px solid var(--accent);
}

.toc__title {
  font-family: 'Manrope', system-ui, sans-serif;
  font-size: var(--title-md);
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--on-surface);
}

.toc__list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: toc-counter;
}

.toc__item {
  counter-increment: toc-counter;
}

.toc__link {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  font-size: var(--body-md);
  color: var(--on-surface-variant);
  text-decoration: none;
  padding: 0.25rem 0;
  transition: color var(--transition-fast);
  line-height: 1.4;
}

.toc__link::before {
  content: counter(toc-counter) ".";
  font-weight: 600;
  color: var(--primary-fixed);
  font-size: var(--body-sm);
  min-width: 1.25rem;
  flex-shrink: 0;
}

.toc__link:hover {
  color: var(--primary-fixed);
}

/* --- Тело статьи --- */
.article__body h2 {
  margin-top: 3rem;
  margin-bottom: 1rem;
  padding-top: 1rem;
}

.article__body h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.article__body p {
  margin-bottom: 1.125rem;
  line-height: 1.75;
  color: var(--on-surface-variant);
  font-size: var(--body-lg);
}

.article__body ol,
.article__body ul {
  margin-bottom: 1.125rem;
  padding-left: 1.5rem;
  color: var(--on-surface-variant);
}

.article__body li {
  margin-bottom: 0.625rem;
  line-height: 1.75;
  font-size: var(--body-lg);
}

.article__body ol {
  list-style: decimal;
}

.article__body ul {
  list-style: disc;
}

.article__body strong {
  color: var(--on-surface);
  font-weight: 600;
}

.article__body a {
  color: var(--primary-fixed);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
  transition: text-decoration-color var(--transition-fast);
}

.article__body a:hover {
  text-decoration-color: transparent;
}

/* --- Callout-блоки --- */
.callout {
  margin: 2rem 0;
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-lg);
  font-size: var(--body-md);
  line-height: 1.65;
}

.callout--key {
  background: rgba(198, 243, 17, 0.08);
  border-left: 3px solid var(--accent);
}

.callout--tip {
  background: var(--surface-container-low);
  border-left: 3px solid var(--primary-fixed);
}

.callout--warning {
  background: var(--warning-surface);
  border-left: 3px solid var(--warning);
}

.callout__title {
  font-family: 'Manrope', system-ui, sans-serif;
  font-weight: 700;
  font-size: var(--title-md);
  color: var(--on-surface);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.callout__title svg {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
}

.callout p {
  margin: 0;
  color: var(--on-surface-variant);
}

/* --- CTA-блоки внутри статьи --- */
.article__cta {
  text-align: center;
  margin: 2.5rem 0;
  padding: 2.5rem 2rem;
  background: linear-gradient(145deg, #000000, #334000);
  border-radius: var(--radius-xl);
  color: var(--on-primary);
}

.article__cta-title {
  font-family: 'Manrope', system-ui, sans-serif;
  font-size: var(--headline-sm);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.article__cta-text {
  font-size: var(--body-md);
  color: rgba(198, 243, 17, 0.7);
  margin-bottom: 1.25rem;
}

.article__cta .btn-primary {
  background: var(--accent);
  color: var(--primary);
}

.article__cta .btn-primary:hover {
  background: #d4ff1a;
}

/* --- Сравнительная таблица --- */
.article__body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0 2rem;
  font-size: var(--body-md);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.article__body thead {
  position: sticky;
  top: 0;
}

.article__body th {
  padding: 0.875rem 1rem;
  text-align: left;
  font-weight: 700;
  color: var(--on-primary);
  background: linear-gradient(145deg, #000000, #334000);
  font-family: 'Manrope', system-ui, sans-serif;
  font-size: var(--body-sm);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.article__body td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--ghost-border);
  color: var(--on-surface-variant);
}

.article__body tbody tr:nth-child(even) {
  background: var(--surface-container-low);
}

.article__body tbody tr:first-child {
  background: rgba(198, 243, 17, 0.06);
}

.article__body tbody tr:first-child td {
  color: var(--on-surface);
  font-weight: 500;
}

/* Бейдж "да/нет" в таблице */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: var(--label-sm);
  font-weight: 600;
}

.badge--yes {
  background: rgba(81, 102, 0, 0.1);
  color: var(--primary-fixed);
}

.badge--no {
  background: rgba(186, 26, 26, 0.06);
  color: var(--error);
}

.badge--partial {
  background: var(--warning-surface);
  color: var(--warning);
}

/* --- Кнопка "Поделиться" --- */
.share {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 3rem 0 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--ghost-border);
}

.share__label {
  font-size: var(--body-sm);
  color: var(--on-surface-variant);
  font-weight: 500;
}

.share__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  background: var(--surface-container-low);
  color: var(--on-surface);
  border: none;
  border-radius: var(--radius-md);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: var(--body-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.share__btn:hover {
  background: var(--surface-container-highest);
  color: var(--on-surface);
}

.share__btn svg {
  width: 1rem;
  height: 1rem;
}

.share__btn--copied {
  background: rgba(81, 102, 0, 0.1);
  color: var(--primary-fixed);
}

/* --- FAQ в статье (переиспользуем стили из landing) --- */
.article .faq-list {
  margin-top: 1rem;
}

/* === Страница индекса блога === */

/* Хедер блога */
.blog-hero {
  padding: 8rem 1.5rem 3rem;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.blog-hero__title {
  font-size: var(--display-sm);
  margin-bottom: 1rem;
}

.blog-hero__desc {
  font-size: var(--body-lg);
  color: var(--on-surface-variant);
  line-height: 1.6;
  max-width: 540px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .blog-hero {
    padding-top: 9rem;
  }
  .blog-hero__title {
    font-size: var(--display-md);
  }
}

/* Сетка карточек */
.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

@media (min-width: 768px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
    padding: 0 2rem 4rem;
  }
}

@media (min-width: 1200px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    padding: 0 3rem 5rem;
  }
}

/* Карточка статьи */
.blog-card {
  background: var(--surface-container-lowest);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  border-top: 3px solid transparent;
}

.blog-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-top-color: var(--accent);
  color: inherit;
}

.blog-card__body {
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.blog-card__category {
  display: inline-block;
  width: fit-content;
  padding: 0.2rem 0.625rem;
  background: rgba(81, 102, 0, 0.08);
  color: var(--primary-fixed);
  font-size: var(--label-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-sm);
  margin-bottom: 0.75rem;
}

.blog-card__title {
  font-family: 'Manrope', system-ui, sans-serif;
  font-size: var(--title-lg);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.75rem;
  color: var(--on-surface);
}

.blog-card__excerpt {
  font-size: var(--body-md);
  color: var(--on-surface-variant);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  flex: 1;
  /* Ограничиваем 3 строками */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--body-sm);
  color: var(--on-surface-variant);
}

.blog-card__date {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}

.blog-card__read-time {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}

.blog-card__arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  background: var(--surface-container-low);
  border-radius: 50%;
  color: var(--on-surface);
  transition: all var(--transition-fast);
}

.blog-card:hover .blog-card__arrow {
  background: linear-gradient(145deg, #000000, #334000);
  color: var(--on-primary);
}

/* --- Адаптив для таблиц на мобильных --- */
@media (max-width: 767px) {
  .article__body table {
    font-size: var(--body-sm);
  }

  .article__body th,
  .article__body td {
    padding: 0.625rem 0.5rem;
  }

  .article__cta {
    padding: 2rem 1.5rem;
  }

  .article__cta-title {
    font-size: var(--title-lg);
  }

  .toc {
    padding: 1.25rem 1.5rem;
  }

  .share {
    flex-wrap: wrap;
  }

  .blog-card__body {
    padding: 1.25rem;
  }
}