:root {
  --content-max-width: 680px;
}

.single-post-wrapper {
  padding: 5%;
}

.single-post-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  align-items: start;
  position: relative;
  z-index: 1;
}

.post-article {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--border-radius-large);
  padding: 3rem 3rem 3.5rem;
  box-shadow: var(--shadow);
  margin: 0 auto;
}

.toc-sidebar {
  display: none;
}

.toc-mobile {
  display: block;
  margin-bottom: 2rem;
  border: 1px solid var(--border);
  border-radius: var(--border-radius-small);
  background: var(--surface);
  overflow: visible;
}

.toc-mobile summary {
  padding: 1rem 1.5rem;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--surface-2);
}

.toc-mobile summary::-webkit-details-marker {
  display: none;
}

.toc-mobile summary::after {
  content: "▼";
  font-size: 0.8rem;
  transition: transform 0.3s;
  color: var(--muted);
}

.toc-mobile[open] summary::after {
  transform: rotate(180deg);
}

.toc-mobile .toc-list {
  padding: 1rem 1.5rem;
}

@media (min-width: 992px) {
  .single-post-grid {
    grid-template-columns: 280px 1fr;
    gap: 3rem;
  }

  .toc-mobile {
    display: none;
  }

  .toc-sidebar {
    display: block;
    position: sticky;
    top: calc(var(--header-height) + 2rem);
    align-self: start;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    background: var(--surface);
    padding: 1.5rem;
    font-size: 0.9rem;
    scroll-behavior: smooth;
  }

  .toc-sidebar .toc-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--accent);
  }
}

.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc-item {
  margin-bottom: 0.3rem;
}

.toc-link {
  display: block;
  padding: 0.4rem 0.6rem;
  border-radius: 6px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.2s;
  font-weight: 500;
  border-right: 3px solid transparent;
}

.toc-link:hover {
  background: var(--accent-glass);
  color: var(--accent);
}

.toc-link.active {
  color: var(--accent);
  background: var(--accent-glass);
  border-right-color: var(--accent);
  font-weight: 700;
}

.toc-item.toc-h3 .toc-link {
  padding-right: 1.8rem;
  font-size: 0.85em;
}

.post-header {
  margin-bottom: 2rem;
  text-align: center;
  padding-top: 0.5rem;
}

.post-title {
  font-size: clamp(1.5rem, 3vw, 2.0rem);
  font-weight: 900;
  line-height: 1.3;
  margin: 1rem 0;
  color: var(--text);
}

.post-meta {
  color: var(--muted);
  font-size: 0.9rem;
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.post-thumbnail {
  margin-bottom: 2.5rem;
  border-radius: var(--border-radius-large);
  overflow: hidden;
  max-width: 85%;
  margin-left: auto;
  margin-right: auto;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  position: relative;
}

.post-thumbnail img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  max-height: 320px;
}

.post-thumb-category {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background: var(--accent);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.4em 0.9em;
  border-radius: 6px;
  line-height: 1.4;
  backdrop-filter: blur(4px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  transition: background 0.2s;
  pointer-events: auto;
}

.post-thumb-category a {
  color: inherit;
  text-decoration: none;
}

.post-thumbnail:hover .post-thumb-category {
  background: var(--accent-hover);
}

/* ==========================================================================
   Post Content — Typography & Article Styling
   Target: .post-content (WordPress the_content() output)
   Optimized for Persian (Vazirmatn), RTL-first, modern readability
   ========================================================================== */

/* --- Container & Base --- */

.post-content {
  font-size: 1.05rem;
  line-height: 1.95;
  color: var(--text);
  max-width: 65ch;
  margin-inline: auto;
  word-break: normal;
  overflow-wrap: break-word;
  -webkit-hyphens: none;
  hyphens: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "kern" 1, "liga" 1, "calt" 1, "ss01" 1;
  font-variant-ligatures: common-ligatures contextual;
}

.post-content::selection {
  background: var(--accent);
  color: #fff;
}

/* Vertical rhythm: ~1.6rem per unit at 1.05rem base */
.post-content > * + * {
  margin-block-start: 1.5rem;
}

.post-content > *:first-child {
  margin-block-start: 0;
}

/* ==========================================================================
   Headings h1–h6
   ========================================================================== */

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4,
.post-content h5,
.post-content h6 {
  color: var(--text);
  line-height: 1.35;
  font-weight: 800;
  scroll-margin-top: calc(var(--header-height) + 3rem);
  text-wrap: balance;
  margin-block-end: 0.6em;
}

.post-content h1 { font-size: 1.85rem; margin-block-start: 3rem; }
.post-content h2 { font-size: 1.65rem; margin-block-start: 2.6rem; }
.post-content h3 { font-size: 1.35rem; margin-block-start: 2.2rem; }
.post-content h4 { font-size: 1.15rem; margin-block-start: 1.8rem; font-weight: 700; }
.post-content h5 { font-size: 1rem;    margin-block-start: 1.5rem; font-weight: 700; }
.post-content h6 { font-size: 0.9rem;  margin-block-start: 1.5rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: 0.03em; }

/* ==========================================================================
   Paragraphs
   ========================================================================== */

.post-content p {
  margin-block: 0;
  margin-block-end: 1.4rem;
  text-align: start;
}

/* paragraph right after a heading — tighter connection */
.post-content h1 + p,
.post-content h2 + p,
.post-content h3 + p,
.post-content h4 + p,
.post-content h5 + p,
.post-content h6 + p {
  margin-block-start: 0.25rem;
}

/* ==========================================================================
   Links
   ========================================================================== */

.post-content a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  text-decoration-color: color-mix(in srgb, var(--accent) 40%, transparent);
  transition: text-decoration-color 0.2s, color 0.2s;
  font-weight: 600;
}

.post-content a:hover {
  text-decoration-color: var(--accent);
  color: var(--accent-hover);
}

.post-content a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

/* ==========================================================================
   Strong & Emphasis
   ========================================================================== */

.post-content strong {
  font-weight: 800;
  color: var(--text);
}

.post-content em {
  font-weight: 500;
  font-style: normal;
  color: var(--text-secondary);
}

.post-content b {
  font-weight: 800;
}

.post-content i {
  font-style: normal;
}

/* ==========================================================================
   Lists
   ========================================================================== */

.post-content ul,
.post-content ol {
  margin-block: 0;
  margin-block-end: 1.4rem;
  padding-inline-start: 1.5rem;
}

.post-content li {
  margin-block-end: 0.35rem;
}

.post-content li:last-child {
  margin-block-end: 0;
}

.post-content ul ul,
.post-content ol ol,
.post-content ul ol,
.post-content ol ul {
  margin-block-start: 0.35rem;
  margin-block-end: 0;
}

.post-content li > p {
  margin-block-end: 0.25rem;
}

.post-content ul {
  list-style: disc;
}

.post-content ol {
  list-style: decimal;
}

.post-content ul ul { list-style: circle; }
.post-content ul ul ul { list-style: square; }

.post-content li::marker {
  color: var(--muted);
}

/* ==========================================================================
   Blockquotes
   ========================================================================== */

.post-content blockquote {
  margin-block: 2rem;
  margin-inline: 0;
  padding-block: 1.2rem;
  padding-inline: 1.5rem;
  border-inline-start: 4px solid var(--accent);
  border-radius: 0 var(--border-radius-small) var(--border-radius-small) 0;
  background: var(--surface-2);
  color: var(--text-secondary);
  font-weight: 500;
  line-height: 1.85;
}

/* Persian: no italic */
.post-content blockquote em,
.post-content blockquote i {
  font-style: normal;
  color: var(--text);
}

.post-content blockquote p {
  margin-block-end: 0.5rem;
}

.post-content blockquote p:last-child {
  margin-block-end: 0;
}

.post-content blockquote cite {
  display: block;
  margin-block-start: 0.75rem;
  font-size: 0.85em;
  color: var(--muted);
  font-style: normal;
}

.post-content blockquote cite::before {
  content: "— ";
}

/* ==========================================================================
   Images & Figures
   ========================================================================== */

.post-content img {
  display: block;
  max-width: 100%;
  height: auto;
  margin-block: 2rem;
  margin-inline: auto;
  border-radius: var(--border-radius-small);
}

.post-content figure {
  margin-block: 2.5rem;
  margin-inline: 0;
}

.post-content figure img {
  margin-block-end: 0.75rem;
}

.post-content figcaption {
  font-size: 0.85rem;
  color: var(--muted);
  text-align: center;
  line-height: 1.6;
  margin-block-start: 0.5rem;
}

.post-content figure.wp-caption {
  max-width: 100%;
}

/* ==========================================================================
   Tables
   ========================================================================== */

.post-content table {
  width: 100%;
  margin-block: 2rem;
  border-collapse: collapse;
  font-size: 0.92em;
  overflow-x: auto;
  display: block;
}

.post-content thead {
  border-block-end: 2px solid var(--border);
}

.post-content th {
  padding: 0.75rem 0.85rem;
  text-align: start;
  font-weight: 800;
  font-size: 0.9em;
  color: var(--text);
  background: var(--surface-2);
  white-space: nowrap;
}

.post-content td {
  padding: 0.65rem 0.85rem;
  border-block-end: 1px solid var(--border);
}

.post-content tbody tr:hover {
  background: color-mix(in srgb, var(--accent) 4%, transparent);
}

.post-content tbody tr:last-child td {
  border-block-end: none;
}

/* ==========================================================================
   Code
   ========================================================================== */

/* Inline code */
.post-content :not(pre) > code {
  font-family: "Fira Code", "JetBrains Mono", "Cascadia Code", Consolas, monospace;
  font-size: 0.88em;
  background: var(--surface-2);
  color: var(--accent-hover);
  padding: 0.15em 0.45em;
  border-radius: 4px;
  direction: ltr;
  unicode-bidi: isolate;
  white-space: nowrap;
  font-weight: 500;
  border: 1px solid var(--border);
}

/* Code blocks */
.post-content pre {
  margin-block: 2rem;
  padding: 1.25rem 1.5rem;
  background: #1e1e2e;
  color: #cdd6f4;
  border-radius: var(--border-radius-small);
  overflow-x: auto;
  direction: ltr;
  text-align: start;
  font-size: 0.88rem;
  line-height: 1.65;
  tab-size: 4;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--border);
}

.post-content pre code {
  font-family: "Fira Code", "JetBrains Mono", "Cascadia Code", Consolas, monospace;
  font-size: inherit;
  background: none;
  color: inherit;
  padding: 0;
  border: none;
  border-radius: 0;
  white-space: pre;
  direction: ltr;
  unicode-bidi: isolate;
}

/* ==========================================================================
   Horizontal Rule
   ========================================================================== */

.post-content hr {
  border: none;
  border-block-start: 1px solid var(--border);
  margin-block: 3rem;
  margin-inline: 0;
}

/* ==========================================================================
   Text-Level Elements
   ========================================================================== */

.post-content mark {
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--text);
  padding: 0.1em 0.3em;
  border-radius: 3px;
  font-weight: 600;
}

.post-content kbd {
  font-family: "Fira Code", "JetBrains Mono", Consolas, monospace;
  font-size: 0.85em;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0.15em 0.55em;
  color: var(--text);
  box-shadow: 0 1px 0 var(--border);
  white-space: nowrap;
  direction: ltr;
  unicode-bidi: isolate;
}

.post-content abbr[title] {
  text-decoration: underline dotted;
  text-underline-offset: 3px;
  cursor: help;
}

.post-content q {
  quotes: "«" "»" "‹" "›";
  color: var(--text);
  font-weight: 500;
}

.post-content q::before {
  content: open-quote;
  color: var(--muted);
  margin-inline-end: 0.15em;
}

.post-content q::after {
  content: close-quote;
  color: var(--muted);
  margin-inline-start: 0.15em;
}

.post-content cite {
  font-weight: 600;
  color: var(--text-secondary);
}

.post-content del {
  color: var(--muted);
  text-decoration: line-through;
  text-decoration-color: var(--error);
}

.post-content ins {
  text-decoration: none;
  background: color-mix(in srgb, var(--success) 15%, transparent);
  padding: 0.1em 0.3em;
  border-radius: 3px;
}

.post-content sub,
.post-content sup {
  font-size: 0.75em;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

.post-content sup { top: -0.5em; }
.post-content sub { bottom: -0.25em; }

.post-content small {
  font-size: 0.85em;
  color: var(--muted);
}

/* ==========================================================================
   Details / Summary
   ========================================================================== */

.post-content details {
  margin-block: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--border-radius-small);
  background: var(--surface);
  overflow: hidden;
}

.post-content details[open] {
  overflow: visible;
}

.post-content summary {
  padding: 0.85rem 1.25rem;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  background: var(--surface-2);
  user-select: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.2s;
}

.post-content summary:hover {
  background: color-mix(in srgb, var(--accent) 6%, var(--surface-2));
}

.post-content summary::-webkit-details-marker {
  display: none;
}

.post-content summary::after {
  content: "";
  width: 20px;
  height: 20px;
  background: currentColor;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 8l5 5 5-5' stroke='currentColor' fill='none' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat center;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 8l5 5 5-5' stroke='currentColor' fill='none' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat center;
  flex-shrink: 0;
  margin-inline-start: 0.75rem;
  transition: transform 0.25s ease;
  color: var(--muted);
}

.post-content details[open] > summary::after {
  transform: rotate(180deg);
}

.post-content details > :not(summary) {
  padding: 1rem 1.25rem;
}

.post-content details > :not(summary):first-child {
  padding-block-start: 1.25rem;
}

.post-content details > :not(summary):last-child {
  padding-block-end: 1.25rem;
}

/* ==========================================================================
   Embeds — iframe, video, audio
   ========================================================================== */

.post-content iframe,
.post-content video,
.post-content embed,
.post-content object {
  display: block;
  max-width: 100%;
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  margin-block: 2rem;
  border: none;
  border-radius: var(--border-radius-small);
}

.post-content audio {
  display: block;
  width: 100%;
  margin-block: 1.5rem;
}

.post-content .wp-video {
  margin-block: 2rem;
}

/* ==========================================================================
   WordPress-Specific
   ========================================================================== */

.post-content .wp-caption-text {
  font-size: 0.85rem;
  color: var(--muted);
  text-align: center;
  line-height: 1.6;
}

.post-content .alignleft {
  float: inline-start;
  margin-inline-end: 1.5rem;
  margin-block-end: 1rem;
}

.post-content .alignright {
  float: inline-end;
  margin-inline-start: 1.5rem;
  margin-block-end: 1rem;
}

.post-content .aligncenter {
  display: block;
  margin-inline: auto;
}

.post-content .wp-block-gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-block: 2rem;
}

.post-content .wp-block-gallery img {
  flex: 1 1 auto;
  margin-block: 0;
}

/* ==========================================================================
   Focus states (global for post-content)
   ========================================================================== */

.post-content :focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

/* ==========================================================================
   Reduced motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  .post-content *,
  .post-content *::before,
  .post-content *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 768px) {
  .post-content {
    font-size: 1rem;
    line-height: 1.85;
  }

  .post-content h1 { font-size: 1.5rem; margin-block-start: 2.4rem; }
  .post-content h2 { font-size: 1.35rem; margin-block-start: 2rem; }
  .post-content h3 { font-size: 1.15rem; margin-block-start: 1.6rem; }
  .post-content h4 { font-size: 1.05rem; margin-block-start: 1.3rem; }
  .post-content h5 { font-size: 0.95rem; margin-block-start: 1.1rem; }
  .post-content h6 { font-size: 0.85rem; margin-block-start: 1rem; }

  .post-content pre {
    font-size: 0.8rem;
    padding: 1rem;
  }

  .post-content blockquote {
    padding-block: 1rem;
    padding-inline: 1rem;
  }

  .post-content figure,
  .post-content img,
  .post-content table,
  .post-content iframe,
  .post-content video {
    margin-block: 1.5rem;
  }

  .post-content .alignleft,
  .post-content .alignright {
    float: none;
    display: block;
    margin-inline: auto;
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .post-content {
    font-size: 0.95rem;
    line-height: 1.8;
  }

  .post-content pre {
    margin-inline: -0.5rem;
    border-radius: 8px;
    font-size: 0.75rem;
  }

  .post-content table {
    font-size: 0.82em;
  }

  .post-content th,
  .post-content td {
    padding: 0.5rem 0.6rem;
  }
}

/* Large screens — slightly bigger for comfort */
@media (min-width: 1400px) {
  .post-content {
    font-size: 1.12rem;
    line-height: 2;
  }
}

.post-footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.single-post-grid.no-toc {
  grid-template-columns: 1fr;
}

.no-toc .toc-sidebar {
  display: none;
}

.related-posts {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.related-title {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.related-title i {
  color: var(--accent);
  font-size: 1.2rem;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.related-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--border-radius-small);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.related-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 20px var(--shadow);
  border-color: var(--accent);
}

.related-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.related-thumb {
  width: 100%;
  height: 140px;
  overflow: hidden;
}

.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.related-card:hover .related-thumb img {
  transform: scale(1.05);
}

.related-text {
  padding: 1rem 1.2rem;
}

.related-heading {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text);
  line-height: 1.4;
  transition: color 0.2s;
}

.related-card:hover .related-heading {
  color: var(--accent);
}

.related-date {
  font-size: 0.8rem;
  color: var(--muted);
}

@media (max-width: 992px) {
  .post-layout {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .post-content,
  .post-sidebar {
    min-width: 0;
    width: 100%;
  }
  .post-sidebar {
    order: -1;
    margin-bottom: 1rem;
  }
  .post-content {
    padding: 2.5rem;
  }
  .post-cover {
    margin: -2.5rem -2.5rem 2.5rem;
    width: calc(100% + 5rem);
    max-width: none;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .single-post-wrapper {
    padding: 2.5rem 0.8rem 3rem;
  }
  .post-article {
    padding: 2rem 1.5rem 2.5rem;
    max-width: 100%;
  }
  .post-thumbnail {
    max-width: 100%;
  }
  .post-hero {
    padding: 6rem 0 2rem;
  }
  .post-title {
    font-size: 1.6rem;
    margin-bottom: 1.5rem;
    line-height: 1.4;
  }
  .post-meta-header {
    gap: 1rem;
    flex-direction: column;
  }
  .post-layout-container {
    padding: 0 1rem;
  }
  .code-wrapper {
    max-width: 100%;
    margin: 1.5rem 0;
  }
  .code-wrapper pre {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    max-width: 100%;
  }
  .post-cover {
    margin: -1.25rem -1.25rem 1.5rem;
    width: calc(100% + 2.5rem);
    max-width: none;
  }
  .author-box-footer {
    flex-direction: column;
    text-align: center;
    padding: 1.5rem;
  }
  .author-box-footer img {
    margin: 0 auto;
  }
  .ab-social {
    justify-content: center;
    display: flex;
  }
  .ab-social a {
    margin: 0 0.5rem;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .related-thumb {
    height: 180px;
  }
}

@media (max-width: 480px) {
  .sidebar-widget {
    padding: 1rem;
    width: 100%;
    overflow: hidden;
  }
}