/* ==========================================================================
   TechRS — article.css
   Article layout + TOC + long-form Hebrew typography + code blocks +
   callouts + share row + tags + related + preview banner + print.
   Depends on tokens from core.css. RTL-first; code blocks are LTR islands.
   ========================================================================== */

/* ─────────────────────────────────────────────
   Preview banner (unpublished drafts)
   ───────────────────────────────────────────── */
.preview-banner {
  margin-block: var(--space-6) 0;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid rgba(240, 169, 60, 0.45);
  border-inline-start-width: 4px;
  background: rgba(240, 169, 60, 0.14);
  color: var(--warn-text); /* amber on dark, dark ochre #7a5200 on light */
  font-weight: 700;
}
:root[data-theme="light"] .preview-banner {
  background: rgba(240, 169, 60, 0.16);
}

/* ─────────────────────────────────────────────
   Layout + TOC (sticky inline-end column >= 1100px)
   ───────────────────────────────────────────── */
.article-layout {
  margin-block: var(--space-8) var(--space-12);
}

.article-toc {
  display: none; /* mobile: TOC simply doesn't show */
}

@media (min-width: 1100px) {
  .article-layout.has-toc {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: var(--space-12);
    align-items: start;
  }
  /* RTL grid: column 1 sits at inline-start (right), so the TOC goes to
     column 2 = inline-end (left) */
  .article-layout.has-toc .article-main {
    grid-column: 1;
    grid-row: 1;
  }
  .article-toc {
    display: block;
    grid-column: 2;
    grid-row: 1;
    position: sticky;
    inset-block-start: calc(var(--navbar-height) + var(--space-6));
    max-block-size: calc(100vh - var(--navbar-height) - var(--space-12));
    overflow-y: auto;
    padding: var(--space-5);
    border-radius: var(--radius-xl);
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
  }
}

.toc-title {
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  border-inline-start: 3px solid var(--brand-cyan);
  padding-inline-start: var(--space-2);
  margin-block-end: var(--space-3);
}

.article-toc ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.article-toc ul ul {
  padding-inline-start: var(--space-4);
}
.article-toc a {
  display: block;
  padding-block: var(--space-1);
  padding-inline-start: var(--space-2);
  border-inline-start: 2px solid transparent;
  color: var(--text-muted);
  font-size: var(--step--1);
  line-height: 1.5;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}
.article-toc a:hover,
.article-toc a[aria-current="true"],
.article-toc a.is-active {
  color: var(--accent-text);
  border-inline-start-color: var(--brand-cyan);
}

/* ─────────────────────────────────────────────
   Head: title, summary, byline, cover
   ───────────────────────────────────────────── */
.article-main {
  min-inline-size: 0;
}

.article-head {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-block-end: var(--space-8);
  max-inline-size: var(--container-text);
}

.article-title {
  font-size: var(--step-3);
  font-weight: 800;
  line-height: var(--leading-tight);
}

.article-summary {
  font-size: var(--step-1);
  line-height: 1.6;
  color: var(--text-secondary);
}

.article-byline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-muted);
  font-size: var(--step--1);
}
.byline-author {
  font-weight: 700;
  color: var(--text-secondary);
}

.article-cover {
  margin-block: 0 var(--space-8);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-md);
}
.article-cover img {
  inline-size: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* ─────────────────────────────────────────────
   Long-form typography (article body + static pages)
   ───────────────────────────────────────────── */
.article-body,
.static-page {
  max-inline-size: var(--container-text);
  font-size: clamp(1.05rem, 1rem + 0.25vw, 1.15rem);
  line-height: var(--leading-body);
  color: var(--text-primary);
}

.static-page {
  margin-block: var(--space-10) var(--space-8);
}

.article-body > * + *,
.static-page > * + * {
  margin-block-start: var(--space-4);
}

.article-body h2,
.static-page h2 {
  font-size: var(--step-2);
  font-weight: 600;
  margin-block-start: var(--space-10);
  /* The strategic-neon moment: cyan edge on section headings, never on text */
  border-inline-start: 3px solid var(--brand-cyan);
  padding-inline-start: var(--space-3);
}
.static-page h1 {
  font-size: var(--step-3);
  font-weight: 800;
  line-height: var(--leading-tight);
  margin-block-end: var(--space-6);
}
.article-body h3,
.static-page h3 {
  font-size: var(--step-1);
  font-weight: 600;
  margin-block-start: var(--space-8);
}
.article-body h4,
.static-page h4 {
  font-size: var(--step-0);
  font-weight: 600;
  margin-block-start: var(--space-6);
}

.article-body a,
.static-page a {
  color: var(--accent-text);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}
.article-body a:hover,
.static-page a:hover {
  color: var(--accent-text-strong);
  text-decoration-thickness: 2px;
}

.article-body ul,
.static-page ul {
  list-style: disc;
  padding-inline-start: var(--space-6);
}
.article-body ol,
.static-page ol {
  list-style: decimal;
  padding-inline-start: var(--space-6);
}
.article-body li + li,
.static-page li + li {
  margin-block-start: var(--space-2);
}

.article-body strong {
  font-weight: 700;
}

.article-body blockquote,
.static-page blockquote {
  border-inline-start: 3px solid var(--brand-purple);
  background: var(--surface-glass);
  padding: var(--space-4) var(--space-5);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-secondary);
}

.article-body hr,
.static-page hr {
  border: 0;
  border-block-start: 1px solid var(--border-strong);
  margin-block: var(--space-8);
}

.article-body img {
  border-radius: var(--radius-md);
  margin-inline: auto;
}
.article-body figcaption {
  text-align: center;
  color: var(--text-muted);
  font-size: var(--step--1);
  margin-block-start: var(--space-2);
}

.article-body table,
.static-page table {
  display: block;
  overflow-x: auto;
  border-collapse: collapse;
  font-size: var(--step--1);
}
.article-body th,
.article-body td,
.static-page th,
.static-page td {
  border: 1px solid var(--border-strong);
  padding: var(--space-2) var(--space-3);
  text-align: start;
}
.article-body th,
.static-page th {
  background: var(--surface-glass);
  font-weight: 700;
}

/* ─────────────────────────────────────────────
   Code — LTR islands, dark surface in BOTH themes
   ───────────────────────────────────────────── */
.article-body pre,
.article-body .highlight {
  direction: ltr;        /* LTR island — the ONLY physical-direction zone */
  text-align: left;
  unicode-bidi: isolate;
}

.article-body .highlight,
.article-body pre {
  background: var(--code-bg);
  border: 1px solid rgba(148, 163, 184, 0.16);
  border-radius: var(--radius-lg);
  margin-block: var(--space-6);
}
/* Light theme: code stays dark but gets a clearly visible border */
:root[data-theme="light"] .article-body .highlight,
:root[data-theme="light"] .article-body pre {
  border-color: rgba(71, 85, 105, 0.45);
}
.article-body .highlight pre {
  /* pre nested inside .highlight wrapper: no double frame */
  background: transparent;
  border: 0;
  border-radius: 0;
  margin-block: 0;
}

.article-body pre {
  padding: var(--space-5);
  overflow-x: auto;
  font-family: var(--font-mono); /* Latin-only mono — code, never Hebrew */
  font-size: 0.9em;
  line-height: 1.65;
  color: #dbe4f0;
  tab-size: 4;
}
.article-body pre:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

/* Inline code — isolated bidi chip */
.article-body :not(pre) > code,
.static-page :not(pre) > code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  direction: ltr;
  unicode-bidi: isolate;
  background: var(--chip-neutral-bg);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: 0.1em 0.4em;
  overflow-wrap: break-word;
}

/* ─────────────────────────────────────────────
   Callouts (python-markdown admonitions)
   ───────────────────────────────────────────── */
.article-body .admonition {
  --ad-edge: var(--brand-cyan);
  --ad-bg: rgba(25, 196, 220, 0.08);
  --ad-title: var(--accent-text-strong);
  border-inline-start: 4px solid var(--ad-edge);
  border-block: 1px solid var(--border-glass);
  border-inline-end: 1px solid var(--border-glass);
  background: var(--ad-bg);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  padding: var(--space-4) var(--space-5);
  margin-block: var(--space-6);
}
.article-body .admonition > .admonition-title {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ad-title);
  margin-block: 0 var(--space-2);
}
.article-body .admonition > :last-child {
  margin-block-end: 0;
}

.article-body .admonition.warning,
.article-body .admonition.caution,
.article-body .admonition.attention {
  --ad-edge: var(--brand-amber);
  --ad-bg: rgba(240, 169, 60, 0.10);
  --ad-title: var(--warn-text); /* #f2c078 dark / #7a5200 light — AA both */
}

.article-body .admonition.danger,
.article-body .admonition.error {
  --ad-edge: var(--brand-danger); /* fill/edge only — text uses AA tokens */
  --ad-bg: rgba(240, 71, 103, 0.10);
  --ad-title: var(--danger-text); /* #ff6b85 dark / #c01030 light */
}
:root[data-theme="light"] .article-body .admonition.danger,
:root[data-theme="light"] .article-body .admonition.error {
  --ad-bg: rgba(240, 71, 103, 0.08);
}

.article-body .admonition.note,
.article-body .admonition.info,
.article-body .admonition.tip {
  --ad-edge: var(--brand-cyan);
  --ad-bg: rgba(25, 196, 220, 0.08);
  --ad-title: var(--accent-text-strong);
}

/* ─────────────────────────────────────────────
   Source, footer, tags
   ───────────────────────────────────────────── */
.article-source {
  max-inline-size: var(--container-text);
  margin-block-start: var(--space-8);
  color: var(--text-muted);
  font-size: var(--step--1);
}
.article-source a {
  color: var(--accent-text);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.article-footer {
  max-inline-size: var(--container-text);
  margin-block-start: var(--space-10);
  padding-block-start: var(--space-6);
  border-block-start: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* ─────────────────────────────────────────────
   Share row
   ───────────────────────────────────────────── */
.share-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}

.share-label {
  font-weight: 700;
  color: var(--text-secondary);
  margin-inline-end: var(--space-1);
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-4);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-full);
  font-size: var(--step--1);
  font-weight: 700;
  color: var(--text-secondary);
  transition: border-color var(--transition-fast), color var(--transition-fast),
    box-shadow var(--transition-fast);
}
.share-btn:hover {
  color: var(--accent-text);
  border-color: var(--accent-text);
  box-shadow: 0 0 0 1px rgba(25, 196, 220, 0.25);
}
.share-telegram:hover,
.share-whatsapp:hover,
.share-x:hover,
.share-linkedin:hover,
.share-copy:hover {
  text-decoration: none;
}

.share-status {
  color: var(--accent-text);
  font-size: var(--step--1);
  font-weight: 700;
}

/* ─────────────────────────────────────────────
   Related articles
   ───────────────────────────────────────────── */
.related-articles {
  margin-block-start: var(--space-16);
  padding-block-start: var(--space-8);
  border-block-start: 1px solid var(--border-subtle);
}
.related-articles > h2 {
  margin-block-end: var(--space-6);
}

/* ─────────────────────────────────────────────
   Print
   ───────────────────────────────────────────── */
@media print {
  .site-header,
  .site-footer,
  .a11y-widget,
  .share-row,
  .related-articles,
  .article-toc,
  .preview-banner,
  .skip-link,
  nav {
    display: none !important;
  }

  body {
    background: #fff !important;
    color: #000 !important;
    font-size: 11pt;
  }

  .article-layout,
  .article-layout.has-toc {
    display: block;
    margin-block: 0;
  }

  .article-title,
  .article-summary,
  .article-byline,
  .article-body,
  .article-body h2,
  .article-body h3,
  .static-page {
    color: #000 !important;
    max-inline-size: none;
  }
  .article-body h2 {
    border-inline-start-color: #000;
  }

  .article-body a,
  .static-page a {
    color: #000 !important;
    text-decoration: underline;
  }
  /* Expand external link URLs */
  .article-body a[href^="http"]::after,
  .static-page a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 0.85em;
    word-break: break-all;
    direction: ltr;
    unicode-bidi: isolate;
  }

  .article-body pre,
  .article-body .highlight {
    background: #fff !important;
    color: #000 !important;
    border: 1pt solid #000;
    white-space: pre-wrap;
    word-break: break-word;
    overflow: visible;
    box-shadow: none;
  }
  .article-body .highlight span,
  .article-body pre span {
    color: #000 !important;
    background: transparent !important;
  }
  .article-body :not(pre) > code {
    background: #fff;
    border: 0.5pt solid #000;
    color: #000;
  }

  .article-body .admonition {
    background: #fff !important;
    border: 1pt solid #000;
    border-inline-start-width: 3pt;
  }
  .article-body .admonition > .admonition-title {
    color: #000 !important;
  }

  .article-cover,
  .chip {
    box-shadow: none !important;
    border-color: #000;
  }
  .chip {
    background: #fff !important;
    color: #000 !important;
  }
}

/* ── Comments section (was unstyled) ──────────────────────────────────── */
.comments-section {
  margin-block-start: var(--space-12);
  padding-block-start: var(--space-8);
  border-block-start: 1px solid var(--border-subtle);
  max-inline-size: var(--container-text);
}
.comment-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-block: var(--space-6);
}
.comment {
  padding: var(--space-4) var(--space-5);
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
}
.comment-head {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  margin-block-end: var(--space-2);
}
.comment-author {
  font-weight: 700;
  color: var(--text-primary);
}
.comment-head time {
  font-size: var(--step--1);
  color: var(--text-muted);
}
.comment-body {
  color: var(--text-secondary);
  line-height: 1.7;
}
.comment-replies {
  list-style: none;
  margin-block-start: var(--space-4);
  margin-inline-start: var(--space-6);
  padding-inline-start: var(--space-4);
  border-inline-start: 2px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.comment-reply {
  background: var(--bg-section);
}
.comment-reply-btn {
  margin-block-start: var(--space-2);
  font-size: var(--step--1);
  font-weight: 700;
  color: var(--accent-text);
}
.comment-reply-btn:hover {
  text-decoration: underline;
}
.moderation-notice {
  font-size: var(--step--1);
  color: var(--text-muted);
  padding: var(--space-3) var(--space-4);
  background: var(--surface-glass);
  border-radius: var(--radius-md);
  margin-block-end: var(--space-3);
}
.comment-form {
  margin-block-start: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.comment-login-cta {
  margin-block-start: var(--space-6);
  padding: var(--space-4) var(--space-5);
  background: var(--surface-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
}
.comment-login-cta a {
  color: var(--accent-text);
  font-weight: 700;
}