/* ============================================
   Literary Theme Custom Refinements
   — Subtle polish for a more refined reading experience
   ============================================ */

/* --- Code Highlight Overrides (solarized-light) --- */
/* Make code blocks blend with the warm paper aesthetic */

/* Override the dark background from monokai for legacy content */
.post-content div.highlight pre {
  background: #fdf6e3 !important;  /* solarized light bg */
  border-color: #e8e3d9;
}

.post-content div.highlight {
  background: #fdf6e3;
  border-radius: 6px;
  margin: 1.5em 0;
}

/* Code block header for copy indication */
.post-content div.highlight {
  position: relative;
}

/* Inline code refinements */
code {
  font-size: 0.85em;
  padding: 0.15em 0.5em;
}

/* Pre > code (fenced code blocks without highlight shortcode) */
.post-content pre code {
  background: none;
  padding: 0;
}

.post-content pre {
  background: #fdf6e3;
  border-color: #e8e3d9;
  position: relative;
}

/* --- Selection color --- */
::selection {
  background: #e8d5c8;
  color: #1a1a1a;
}

::-moz-selection {
  background: #e8d5c8;
  color: #1a1a1a;
}

/* --- Focus styles for accessibility --- */
a:focus-visible,
button:focus-visible,
.tag:focus-visible {
  outline: 2px solid #b85c38;
  outline-offset: 2px;
  border-radius: 2px;
}

/* --- Smooth scroll for anchor links --- */
html {
  scroll-padding-top: 2em;
}

/* --- Homepage: Post list refinements --- */
.post-item {
  position: relative;
  transition: transform 0.2s ease;
}

.post-item:hover {
  transform: translateX(4px);
}

.post-item-meta {
  display: flex;
  align-items: center;
  gap: 0.8em;
}

.post-item-reading {
  font-size: 0.75rem;
  color: #b8b8b8;
  font-variant-numeric: tabular-nums;
}

.post-item-summary {
  position: relative;
}

/* Fade gradient at bottom of summary */
.post-item-summary::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1.5em;
  background: linear-gradient(transparent, #faf7f2);
  pointer-events: none;
}

.post-item-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.6em;
  flex-wrap: wrap;
  gap: 0.5em;
}

.post-item-readmore {
  font-size: 0.8rem;
  color: #b85c38;
  text-decoration: none;
  font-weight: 500;
  opacity: 0;
  transition: opacity 0.25s ease, transform 0.25s ease;
  transform: translateX(-4px);
  white-space: nowrap;
}

.post-item:hover .post-item-readmore {
  opacity: 1;
  transform: translateX(0);
}

.post-item-readmore:hover {
  text-decoration: underline;
}

/* --- Tags refinement --- */
.tag {
  font-size: 0.72rem;
  padding: 0.15em 0.7em;
  letter-spacing: 0.3px;
}

/* --- Post meta refinements --- */
.post-meta {
  font-size: 0.8rem;
  color: #9a9a9a;
  display: flex;
  flex-wrap: wrap;
  gap: 0.2em;
  align-items: center;
}

.post-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.2em;
}

.post-meta-words {
  color: #b8b8b8;
}

.post-meta-category a {
  color: #b85c38;
}

/* --- Post header refined --- */
.post-title {
  font-size: 1.85rem;
  letter-spacing: -0.3px;
}

/* --- Post content refinements --- */
.post-content {
  font-size: 1.05rem;
  line-height: 1.95;
}

/* Better list styling */
.post-content ul,
.post-content ol {
  padding-left: 1.5em;
}

.post-content li {
  margin: 0.3em 0;
}

.post-content li::marker {
  color: #b85c38;
}

/* Blockquote refinements */
.post-content blockquote {
  position: relative;
}

.post-content blockquote::before {
  content: '"';
  position: absolute;
  top: -0.1em;
  left: 0.1em;
  font-size: 3em;
  color: #d4c5b0;
  font-family: Georgia, serif;
  line-height: 1;
  opacity: 0.4;
}

.post-content blockquote {
  padding-left: 2.2em;
}

/* Heading anchor links */
.post-content h2,
.post-content h3 {
  position: relative;
}

.post-content h2 a,
.post-content h3 a {
  color: inherit;
  text-decoration: none;
}

.post-content h2 a::before,
.post-content h3 a::before {
  content: '#';
  position: absolute;
  left: -1.2em;
  color: #d4c5b0;
  opacity: 0;
  transition: opacity 0.2s;
  font-weight: 400;
}

.post-content h2:hover a::before,
.post-content h3:hover a::before {
  opacity: 1;
}

/* --- Table refinements --- */
.post-content table {
  font-size: 0.875rem;
  border-radius: 4px;
  overflow: hidden;
}

.post-content th {
  background: #f0ece4;
  font-weight: 600;
}

.post-content tr:nth-child(even) {
  background: #faf7f2;
}

.post-content tr:hover {
  background: #f5f0e8;
}

/* --- Image lightbox --- */
.post-content img {
  cursor: zoom-in;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.post-content img:hover {
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.lightbox-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.7);
  z-index: 9998;
  opacity: 0;
  transition: opacity 0.3s ease;
  cursor: zoom-out;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.lightbox-overlay.open {
  opacity: 1;
}

img.lightbox-active {
  position: fixed;
  z-index: 9999;
  max-width: 90vw;
  max-height: 90vh;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(1) !important;
  cursor: zoom-out;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* --- Inline TOC (collapsible, at top of article) --- */
.post-toc {
  margin: 1.5em 0 2em;
  background: #f5f2ed;
  border: 1px solid #e8e3d9;
  border-radius: 8px;
  overflow: hidden;
}

.post-toc-summary {
  padding: 0.6em 1em;
  font-family: "Noto Serif CJK SC", "Source Han Serif SC", Georgia, serif;
  font-size: 0.9rem;
  font-weight: 600;
  color: #1a1a1a;
  cursor: pointer;
  user-select: none;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.5em;
}

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

.post-toc-summary::before {
  content: '▶';
  font-size: 0.7rem;
  color: #b85c38;
  transition: transform 0.2s ease;
}

details[open] .post-toc-summary::before {
  transform: rotate(90deg);
}

.post-toc-summary:hover {
  color: #b85c38;
}

.post-toc-body {
  padding: 0.2em 1em 0.8em;
  border-top: 1px solid #e8e3d9;
}

/* Hugo's built-in TOC output */
.post-toc-body nav#TableOfContents ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.post-toc-body nav#TableOfContents ul ul {
  padding-left: 1.2em;
}

.post-toc-body nav#TableOfContents li {
  margin: 0.15em 0;
  line-height: 1.6;
}

.post-toc-body nav#TableOfContents a {
  display: block;
  padding: 0.2em 0.4em;
  color: #6b6b6b;
  font-size: 0.85rem;
  text-decoration: none;
  border-radius: 3px;
  transition: all 0.2s;
  border-left: 2px solid transparent;
}

.post-toc-body nav#TableOfContents a:hover {
  color: #b85c38;
  background: #ece6dc;
  border-left-color: #b85c38;
}

.post-toc-body nav#TableOfContents a.active {
  color: #b85c38;
  border-left-color: #b85c38;
  font-weight: 500;
}

/* --- Back to top refinements --- */
.back-to-top {
  width: 40px;
  height: 40px;
  background: rgba(184, 92, 56, 0.08);
  border: 1px solid #e8e3d9;
  color: #b85c38;
  transition: all 0.3s ease;
  display: none;
}

.back-to-top.visible {
  display: flex;
}

.back-to-top:hover {
  background: #b85c38;
  color: #fff;
  border-color: #b85c38;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(184, 92, 56, 0.2);
}

/* --- Post navigation refinements --- */
.post-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 2.5em;
  gap: 1.5em;
  flex-wrap: wrap;
}

.post-nav-prev,
.post-nav-next {
  font-size: 0.9rem;
  color: #b85c38;
  max-width: 45%;
  text-decoration: none;
  padding: 0.8em 1em;
  border: 1px solid #e8e3d9;
  border-radius: 6px;
  transition: all 0.2s ease;
  flex: 1;
}

.post-nav-prev:hover,
.post-nav-next:hover {
  border-color: #b85c38;
  background: rgba(184, 92, 56, 0.04);
  text-decoration: none;
}

.post-nav-direction {
  display: block;
  font-size: 0.75rem;
  color: #9a9a9a;
  margin-bottom: 0.2em;
}

.post-nav-title {
  display: block;
  line-height: 1.4;
}

.post-nav-next {
  text-align: right;
}

/* --- Header refinements --- */
.site-header {
  padding: 2em 0 1.2em;
}

.site-title {
  font-size: 1.5rem;
  letter-spacing: 3px;
}

.site-subtitle {
  font-size: 0.8rem;
  letter-spacing: 1px;
}

/* GitHub nav link with icon */
.nav-github svg {
  transition: transform 0.2s ease;
}

.nav-github:hover svg {
  transform: scale(1.15);
}

/* --- Footer refinements --- */
.site-footer {
  margin-top: 3em;
  padding: 1.5em 0;
}

.site-footer p {
  margin: 0.2em 0;
  line-height: 1.6;
}

.footer-meta {
  font-size: 0.75rem;
  color: #b8b8b8;
}

/* --- Pagination refinements --- */
.pagination {
  gap: 0.5em;
}

.pagination a,
.pagination span {
  padding: 0.35em 0.9em;
  font-size: 0.85rem;
  border-radius: 6px;
}

/* --- Archive page refinements --- */
.archive-item a {
  transition: color 0.2s ease;
}

.archive-item a:hover {
  padding-left: 4px;
}

/* --- About page refinements --- */
/* Target the about page specifically */
body:has([class="post-title"] a[href*="about"]) .post-content {
  font-size: 1rem;
}

/* --- Scrollbar refinements --- */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: #d4c5b0;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #b8a08a;
}

/* --- Print refinements --- */
@media print {
  .back-to-top,
  .post-item-readmore,
  .post-toc,
  .lightbox-overlay {
    display: none !important;
  }

  img.lightbox-active {
    position: static !important;
    transform: none !important;
    max-width: 100% !important;
    max-height: none !important;
    box-shadow: none !important;
  }
}

/* --- Responsive refinements --- */
@media (max-width: 600px) {
  .post-title {
    font-size: 1.5rem;
  }

  .post-item:hover {
    transform: none;
  }

  .post-item-readmore {
    opacity: 1;
    transform: none;
    font-size: 0.75rem;
  }

  .post-nav-prev,
  .post-nav-next {
    max-width: 100%;
    padding: 0.6em 0.8em;
  }

  .post-content blockquote {
    padding-left: 1.6em;
  }

  .post-content blockquote::before {
    font-size: 2em;
    top: -0.05em;
    left: 0.05em;
  }

  .post-content h2 a::before,
  .post-content h3 a::before {
    display: none;
  }

  .post-item-summary::after {
    height: 1em;
  }

  .back-to-top {
    bottom: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
  }

  .nav-github svg {
    width: 14px;
    height: 14px;
  }
}

@media (max-width: 380px) {
  .post-title {
    font-size: 1.3rem;
  }
}

/* --- Smooth reveal for post items (enhanced) --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.post-item {
  animation: fadeInUp 0.45s ease both;
}

.post-item:nth-child(1) { animation-delay: 0.03s; }
.post-item:nth-child(2) { animation-delay: 0.06s; }
.post-item:nth-child(3) { animation-delay: 0.09s; }
.post-item:nth-child(4) { animation-delay: 0.12s; }
.post-item:nth-child(5) { animation-delay: 0.15s; }
.post-item:nth-child(6) { animation-delay: 0.18s; }
.post-item:nth-child(7) { animation-delay: 0.21s; }
.post-item:nth-child(8) { animation-delay: 0.24s; }
.post-item:nth-child(9) { animation-delay: 0.27s; }
.post-item:nth-child(10) { animation-delay: 0.30s; }

/* --- Keyboard shortcut hint style --- */
kbd {
  display: inline-block;
  padding: 0.1em 0.4em;
  font-size: 0.8em;
  font-family: "SF Mono", "JetBrains Mono", monospace;
  background: #f5f2ed;
  border: 1px solid #e0dbd0;
  border-radius: 3px;
  box-shadow: 0 1px 0 #d4c5b0;
  line-height: 1.4;
}

/* --- Footnote refinements --- */
.footnotes {
  margin-top: 3em;
  padding-top: 1.5em;
  border-top: 1px solid #e8e3d9;
  font-size: 0.85rem;
  color: #6b6b6b;
}

.footnotes ol {
  padding-left: 1.2em;
}

.footnotes li {
  margin: 0.5em 0;
}

/* --- Definition list refinement --- */
.post-content dt {
  font-weight: 600;
  color: #1a1a1a;
  margin-top: 1em;
}

.post-content dd {
  padding-left: 1em;
  color: #5a5a5a;
  margin-bottom: 0.5em;
}

/* --- Horizontal rule refinement --- */
.post-content hr {
  margin: 2em 0;
  position: relative;
}

.post-content hr::after {
  content: '✦';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #faf7f2;
  padding: 0 0.8em;
  color: #d4c5b0;
  font-size: 0.8rem;
}