/**
 * ActiveZone — blog listing + article shell
 * Palette: B/W/orange via tokens.css. Does not touch hero FREEZE.
 */

/* ——— Index teaser + listing cards ——— */
.blog-preview {
  display: grid;
  gap: var(--space-5);
  margin-bottom: var(--space-5);
}

.blog-preview__grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}

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

@media (min-width: 1100px) {
  .blog-preview__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.blog-card {
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--duration-fast, 0.15s) ease, box-shadow var(--duration-fast, 0.15s) ease;
}

.blog-card:hover,
.blog-card:focus-visible {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
  outline: none;
}

.blog-card__media {
  aspect-ratio: 16 / 9;
  background: var(--color-surface);
  overflow: hidden;
}

.blog-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-5);
  flex: 1;
}

.blog-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.blog-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-display);
  margin: 0;
}

.blog-card__excerpt {
  margin: 0;
  color: var(--color-muted);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  flex: 1;
}

.blog-card__more {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
}

.blog-empty--soft {
  margin-bottom: 0;
}

/* ——— Blog listing page ——— */
.page-blog .blog-listing {
  padding-block: var(--space-8) var(--space-9);
}

.blog-listing__head {
  margin-bottom: var(--space-7);
  max-width: var(--measure);
}

.blog-listing__head h1 {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 600;
  letter-spacing: var(--tracking-display);
  line-height: var(--leading-tight);
  margin: 0 0 var(--space-3);
}

.blog-listing__head p {
  margin: 0;
  color: var(--color-muted);
  font-size: var(--text-lg);
}

.blog-listing__empty {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  color: var(--color-muted);
}

/* ——— Article shell ———
   Лендинг: p { max-width: 65ch } — не трогаем.
   Статья: колонка чтения целиком (--article-read-col), не «узкий p / широкий ol».
   ПК: сетка minmax(0, 42rem) + TOC 220px; TOC сразу справа от колонки.
   ≤1024: одна колонка 100%. Глобальный --container-max / --measure не трогаем. */
.page-article {
  --article-shell-max: 1200px;
  --article-read-col: 42rem;
  --article-toc-col: 220px;
  --article-layout-gap: var(--space-6);
}

.page-article .article-shell {
  padding-block: 0 var(--space-9);
  min-width: 0;
  max-width: 100%;
}

.page-article .article-shell > .container {
  min-width: 0;
  max-width: min(var(--article-shell-max), 100%);
}

.page-article .article-author-bar .container {
  min-width: 0;
  max-width: min(var(--article-shell-max), 100%);
}

.article-shell__back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-muted);
  text-decoration: none;
  margin-bottom: var(--space-5);
}

.article-shell__back:hover,
.article-shell__back:focus-visible {
  color: var(--color-accent);
  outline: none;
}

/* Cover: desktop fullscreen overlay; stack @1024 — see rules below. */
.article-cover.article-cover--fullscreen {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 100vh;
  min-height: 100dvh;
  min-height: 100svh;
  overflow: hidden;
  background: var(--color-ink);
  color: #fff;
}

.article-cover__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.article-cover__img:not([src]),
.article-cover__img[src=""] {
  display: none;
}

.article-cover__shade {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(
    to top,
    rgb(10 10 10 / 0.82) 0%,
    rgb(10 10 10 / 0.55) 42%,
    rgb(10 10 10 / 0.28) 100%
  );
}

.article-cover__content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: min(var(--article-shell-max), 100%);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-block: var(--space-8) var(--space-7);
}

.article-cover__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  font-weight: 600;
  color: rgb(255 255 255 / 0.78);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--space-3);
}

.article-cover__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 600;
  letter-spacing: var(--tracking-display);
  line-height: var(--leading-tight);
  margin: 0 0 var(--space-3);
  max-width: min(var(--article-read-col), 100%);
  color: #fff;
  text-wrap: balance;
}

.article-cover__lead {
  margin: 0;
  max-width: min(var(--article-read-col), 100%);
  color: rgb(255 255 255 / 0.88);
  font-size: var(--text-lg);
  line-height: var(--leading-loose);
}

.article-author-bar {
  border-block-end: 1px solid var(--color-border);
  background: var(--color-bg);
}

.article-author-bar .container {
  display: flex;
  align-items: center;
  min-height: 56px;
  padding-block: var(--space-3);
}

.article-author-bar__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  min-height: 44px;
  text-decoration: none;
  color: var(--color-ink);
  font-weight: 600;
  font-size: var(--text-base);
}

.article-author-bar__link:hover,
.article-author-bar__link:focus-visible {
  color: var(--color-accent);
  outline: none;
}

.article-author-bar__link:focus-visible {
  outline: 2px solid var(--color-focus, var(--color-accent));
  outline-offset: 3px;
  border-radius: 2px;
}

.article-author-bar__logo {
  height: 28px;
  width: auto;
  max-width: 140px;
}

.article-shell__body {
  padding-block-start: var(--space-5);
}

.article-layout {
  display: grid;
  gap: var(--article-layout-gap, var(--space-6));
  align-items: start;
  /* B01-R1: one column must shrink; default auto track expands to table min-width */
  grid-template-columns: minmax(0, 1fr);
  min-width: 0;
  width: 100%;
  max-width: 100%;
}

@media (max-width: 1024px) {
  .page-article .article-layout {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 1025px) {
  .page-article .article-layout {
    justify-content: start;
    grid-template-columns: minmax(0, var(--article-read-col));
  }

  .page-article .article-layout:has(.article-toc-wrap:not([hidden])) {
    grid-template-columns: minmax(0, var(--article-read-col)) var(--article-toc-col);
  }

  .page-article .article-toc-wrap {
    order: 2;
  }

  .page-article .article-body {
    order: 1;
    max-width: var(--article-read-col);
    width: 100%;
  }
}

.article-toc-wrap {
  min-width: 0;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

.article-toc-wrap[hidden] {
  display: none;
}

.article-toc-details {
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.article-toc__label {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-muted);
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  min-height: 44px;
  cursor: pointer;
  list-style: none;
}

.article-toc__label::-webkit-details-marker {
  display: none;
}

.article-toc__label::after {
  content: "";
  width: 0.45em;
  height: 0.45em;
  border-inline-end: 2px solid currentColor;
  border-block-end: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform var(--duration-fast, 0.15s) var(--ease-out, ease);
  flex-shrink: 0;
}

.article-toc-details[open] > .article-toc__label::after {
  transform: rotate(225deg);
}

.article-toc-details[open] > .article-toc__label {
  margin-block-end: var(--space-3);
}

.article-toc {
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.article-toc li {
  width: 100%;
  min-width: 0;
}

.article-toc a {
  display: flex;
  align-items: center;
  width: 100%;
  box-sizing: border-box;
  min-height: 44px;
  padding-block: var(--space-2);
  padding-inline: 0;
  color: var(--color-ink);
  text-decoration: none;
  font-size: var(--text-sm);
  line-height: var(--leading-snug);
}

.article-toc__label:focus-visible {
  outline: 2px solid var(--color-focus, var(--color-accent));
  outline-offset: 3px;
  border-radius: 2px;
}

.article-toc a:hover,
.article-toc a:focus-visible {
  color: var(--color-accent);
  outline: none;
}

.article-toc a:focus-visible {
  outline: 2px solid var(--color-focus, var(--color-accent));
  outline-offset: 3px;
  border-radius: 2px;
}

@media (max-width: 1024px) {
  .page-article .article-toc-wrap,
  .page-article .article-toc-details,
  .page-article .article-toc,
  .page-article .article-body,
  .page-article .article-cover,
  .page-article .article-cover__content,
  .page-article .article-layout,
  .page-article .article-author-bar,
  .page-article .article-shell__body,
  .page-article .article-faq {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    margin-inline: 0;
  }

  .page-article .article-toc-wrap {
    position: static;
  }
}

@media (min-width: 1025px) {
  .article-toc-wrap {
    position: sticky;
    top: calc(var(--header-h) + var(--space-4));
  }

  .article-toc__label {
    cursor: default;
    min-height: 0;
    margin-block-end: var(--space-3);
  }

  .article-toc__label::after {
    display: none;
  }
}

/* Статья: бургер до 1024. Не трогает главную / main.css nav @768. */
@media (max-width: 1024px) {
  .page-article .nav {
    display: none;
  }

  .page-article .header-cta {
    display: none;
  }

  .page-article .site-header .burger,
  .page-article .mobile-nav .burger {
    display: inline-flex;
  }
}

@media (prefers-reduced-motion: reduce) {
  .article-toc__label::after {
    transition: none;
  }
}

.article-body {
  min-width: 0;
  max-width: none;
  width: 100%;
  font-size: var(--text-base);
  line-height: var(--leading-loose);
  color: var(--color-ink);
}

.article-body > * + * {
  margin-top: var(--space-5);
}

.article-body h2,
.article-body h3 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: var(--tracking-display);
  line-height: var(--leading-snug);
  margin-top: var(--space-7);
  scroll-margin-top: calc(var(--header-h) + var(--space-4));
  text-wrap: balance;
}

.article-body h2 {
  font-size: var(--text-2xl);
}

.article-body h3 {
  font-size: var(--text-xl);
}

.article-body p {
  margin: 0;
}

/* Снять лендинговый p { max-width: 65ch } только внутри статьи.
   Абзац = список = заголовок = лид. Не трогает главную. */
.page-article .article-body p,
.page-article .article-body li,
.page-article .article-body blockquote,
.page-article .article-body h2,
.page-article .article-body h3,
.page-article .article-body ul,
.page-article .article-body ol,
.page-article .article-body .article-faq {
  max-width: none;
  width: 100%;
}

.article-body a {
  color: var(--color-accent-deep);
}

.article-body ul,
.article-body ol {
  margin: 0;
  padding-inline-start: 1.25em;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.article-body blockquote {
  margin: 0;
  padding: var(--space-4) var(--space-5);
  border-left: 3px solid var(--color-accent);
  background: var(--color-surface);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-ink);
  font-style: italic;
}

.article-inline-image {
  margin: var(--space-6) 0;
  max-width: 100%;
  min-width: 0;
}

.article-inline-image img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

/* B01-R1: H-scroll только внутри wrapper; table min-width не раздувает page/TOC */
.article-table-scroll {
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
}

.article-table-scroll table {
  width: max(100%, 480px);
  border-collapse: collapse;
  min-width: 480px;
  font-size: var(--text-sm);
}

@media (max-width: 480px) {
  .article-table-scroll table {
    /* keep internal scroll, slightly softer floor on narrow phones */
    min-width: 20rem;
    width: max(100%, 20rem);
  }
}

.article-table-scroll th,
.article-table-scroll td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.article-table-scroll th {
  background: var(--color-surface);
  font-weight: 600;
  white-space: nowrap;
}

.article-table-scroll tr:last-child td {
  border-bottom: none;
}

.article-not-found .article-cover__img,
.article-not-found .article-cover__shade {
  display: none;
}

.article-not-found .article-cover.article-cover--fullscreen {
  min-height: auto;
  background: var(--color-bg);
  color: var(--color-ink);
}

.article-not-found .article-cover__title,
.article-not-found .article-cover__lead,
.article-not-found .article-cover__meta {
  color: var(--color-ink);
}

.article-not-found .article-cover__lead {
  color: var(--color-muted);
}

/* Dual ribbon 32:9 — never 16/9 cinema crop (B51). Intrinsic image is 2048×576. */
.article-ribbon-banner {
  display: block;
  max-width: 100%;
  min-width: 0;
  line-height: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  text-decoration: none;
}

.article-body > .article-ribbon-banner {
  margin-block: var(--space-6);
}

.article-ribbon-banner--ratio-32x9 {
  aspect-ratio: 32 / 9;
}

.article-ribbon-banner__img,
.article-ribbon-banner__img--32x9 {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* do not set aspect-ratio: 16/9 */
}

.article-ribbon-banner--linked {
  transition: opacity var(--duration-fast, 0.15s) var(--ease-out, ease),
    transform var(--duration-fast, 0.15s) var(--ease-out, ease);
}

.article-ribbon-banner--linked:hover,
.article-ribbon-banner--linked:focus-visible {
  opacity: 0.94;
  outline: none;
}

.article-ribbon-banner--linked:focus-visible {
  outline: 2px solid var(--color-focus, var(--color-accent));
  outline-offset: 3px;
}

.article-ribbon-banner--linked:active {
  transform: scale(0.96);
}

/* FAQ accordion — closed by default; nested details per question */
.article-faq {
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  scroll-margin-top: calc(var(--header-h) + var(--space-4));
}

.article-faq__summary,
.article-faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  min-height: 44px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: var(--tracking-display);
  line-height: var(--leading-snug);
  color: var(--color-ink);
  text-align: start;
}

.article-faq__summary::-webkit-details-marker,
.article-faq__question::-webkit-details-marker {
  display: none;
}

.article-faq__summary::marker,
.article-faq__question::marker {
  content: "";
}

.article-faq__summary {
  font-size: var(--text-xl);
}

.article-faq__title {
  flex: 1;
  min-width: 0;
  text-wrap: balance;
}

.article-faq__hint {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  min-height: 44px;
  padding-inline: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-accent-deep);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1;
}

.article-faq__hint-open {
  display: none;
}

.article-faq[open] > .article-faq__summary .article-faq__hint-closed {
  display: none;
}

.article-faq[open] > .article-faq__summary .article-faq__hint-open {
  display: inline;
}

.article-faq__question::after {
  content: "";
  width: 0.45em;
  height: 0.45em;
  border-inline-end: 2px solid currentColor;
  border-block-end: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform var(--duration-fast, 0.15s) var(--ease-out, ease);
  flex-shrink: 0;
}

.article-faq__item[open] > .article-faq__question::after {
  transform: rotate(225deg);
}

.article-faq[open] > .article-faq__summary {
  margin-block-end: var(--space-4);
}

.article-faq__summary:hover,
.article-faq__question:hover {
  color: var(--color-accent-deep);
}

.article-faq__summary:focus-visible,
.article-faq__question:focus-visible {
  outline: 2px solid var(--color-focus, var(--color-accent));
  outline-offset: 3px;
  border-radius: 2px;
}

.article-faq__summary:active .article-faq__hint,
.article-faq__question:active {
  transform: scale(0.96);
}

.article-faq__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 0;
}

.article-faq__item {
  min-width: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding-inline: var(--space-4);
}

.article-faq__question {
  font-size: var(--text-base);
  font-family: var(--font-body);
  letter-spacing: 0;
}

.article-faq__answer {
  margin: 0;
  padding-block: 0 var(--space-4);
  color: var(--color-muted);
  font-size: var(--text-base);
  line-height: var(--leading-loose);
  text-align: start;
}

/* Desktop ≥1025: transparent/accent header over fullscreen cover */
@media (min-width: 1025px) {
  .page-article .site-header {
    position: fixed;
    inset-inline: 0;
    top: 0;
    width: 100%;
  }

  .page-article .site-header:not(.is-past-hero) {
    background: rgb(10 10 10 / 0.28);
    border-bottom-color: transparent;
  }

  .page-article .site-header:not(.is-past-hero) .nav a {
    color: #fff;
  }

  .page-article .site-header:not(.is-past-hero) .nav a:hover,
  .page-article .site-header:not(.is-past-hero) .nav a:focus-visible {
    color: var(--color-accent);
  }
}

/* Tablet + phone stack — max-width: 1024px (iPad Pro = tablet, not desktop crop) */
@media (max-width: 1024px) {
  .article-cover.article-cover--fullscreen {
    min-height: auto;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    overflow: visible;
    background: var(--color-bg);
    color: var(--color-ink);
  }

  .article-cover.article-cover--fullscreen .article-cover__img {
    position: relative;
    inset: auto;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: contain;
    background: var(--color-surface);
  }

  .article-cover.article-cover--fullscreen .article-cover__shade {
    display: none;
  }

  .article-cover.article-cover--fullscreen .article-cover__content {
    max-width: none;
    padding-block: var(--space-5) var(--space-6);
  }

  .article-cover.article-cover--fullscreen .article-cover__title {
    color: var(--color-ink);
    max-width: none;
    width: 100%;
  }

  .article-cover.article-cover--fullscreen .article-cover__lead {
    color: var(--color-muted);
    max-width: none;
    width: 100%;
  }

  .article-cover.article-cover--fullscreen .article-cover__meta {
    color: var(--color-muted);
  }

  .page-article .site-header {
    background: #ffffff;
    border-bottom-color: var(--color-border);
  }

  .page-article .site-header .wordmark__img--on-accent {
    display: none;
  }

  .page-article .site-header .wordmark__img--on-light {
    display: block;
  }
}

/* Tablet-only refinements */
@media (min-width: 768px) and (max-width: 1024px) {
  .article-cover.article-cover--fullscreen .article-cover__content {
    max-width: 920px;
    margin-inline: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .blog-card {
    transition: none;
  }

  .article-ribbon-banner--linked {
    transition: none;
  }

  .article-ribbon-banner--linked:active {
    transform: none;
  }

  .article-faq__question::after {
    transition: none;
  }

  .article-faq__summary:active .article-faq__hint,
  .article-faq__question:active {
    transform: none;
  }

  .page-article .site-header {
    transition: none;
  }
}