/* Extended CSS variables for main.css only */
:root {
  --code-bg: #f1f5f9;
  --code-border: #e2e8f0;
  --code-text: #0f172a;
  --code-inline-bg: #eef2f7;
}

/* CLS Prevention: Font loading optimization */
@font-face {
  font-family: "System UI Fallback";
  src: local("system-ui"), local("-apple-system"), local("BlinkMacSystemFont");
  font-display: swap; /* Prevents invisible text during font swap */
}

/* Links styling */
a {
  color: inherit;
  text-decoration: none;
}

/* Extended headings */
h4,
h5,
h6,
.single-title {
  color: var(--heading);
}

/* Extended header styles (critical styles in critical.css) */
.header-inner {
  gap: 16px;
}

.logo-mark {
  display: block;
  border-radius: 50%;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.site-nav a {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 6px;
  color: inherit;
  transition: background-color 0.2s;
}

.site-nav a:hover {
  background: var(--accent-weak);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex-direction: column;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card);
  margin-left: auto;
}
.nav-toggle .bar {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

/* Search button styling */
.site-nav button.icon-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  background: transparent;
  border: none;
  border-radius: 4px;
  color: inherit;
  cursor: pointer;
  transition:
    background-color 0.2s ease,
    color 0.2s ease;
}

.site-nav button.icon-link:hover {
  background-color: #f4f6f8;
  color: #2563eb;
}

.site-nav button.icon-link:focus-visible {
  outline: 2px solid #3b82f6;
  outline-offset: 2px;
}

.site-nav button.icon-link svg {
  display: block;
  width: 20px;
  height: 20px;
  color: inherit;
}

/* Dark mode styles for search button */
[data-theme="dark"] .site-nav button.icon-link:hover,
.theme-dark .site-nav button.icon-link:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* Theme toggle: flat icon style */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  border: 0;
  background: transparent;
  border-radius: 8px;
  cursor: pointer;
  color: inherit;
  line-height: 1;
}
.theme-toggle svg {
  display: block;
  width: 20px;
  height: 20px;
}
.theme-toggle .icon-sun {
  display: none;
}
.theme-dark .theme-toggle .icon-sun {
  display: block;
}
.theme-dark .theme-toggle .icon-moon {
  display: none;
}
.theme-toggle:hover {
  background: #f4f6f8;
}
.theme-toggle:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-weak);
}

.search {
  margin-left: auto;
}
.search-input {
  width: 260px;
  max-width: 50vw;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
}
.search-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-weak);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.04);
  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.06);
}
.card-cover {
  width: 100%;
  aspect-ratio: 16/9;
  background: #f6f7f9;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  border-top-left-radius: 14px;
  border-top-right-radius: 14px;
}
.card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.card-body {
  padding: 12px 14px 14px;
}
.card-title {
  margin: 0 0 6px;
  font-size: 18px;
  line-height: 1.35;
}
.card-meta {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 8px;
}
.card-meta .tag-link {
  color: inherit;
}
.card-meta .tag-link:hover {
  color: var(--accent);
  text-decoration: underline;
}
.card-summary {
  margin: 4px 0 0;
  color: #333;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}

.single {
  max-width: 760px;
  margin: 0 auto;
}
.single-cover {
  margin: 0 0 16px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #f6f7f9;
}
.single-cover img {
  width: 100%;
  height: auto;
  display: block;
}
.single-cover figcaption {
  font-size: 13px;
  color: var(--muted);
  padding: 8px 12px;
}
.single-title {
  margin: 0 0 8px;
}
.single-meta {
  color: var(--muted);
  margin-bottom: 16px;
}
.content img {
  max-width: 100%;
  height: auto;
}

/* Code blocks */
.content pre {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 12px;
  padding: 14px 16px;
  margin: 14px 0;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}
.content pre code {
  background: transparent;
  color: var(--code-text);
  font-family:
    ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New",
    monospace;
  font-size: 14px;
  line-height: 1.6;
  tab-size: 2;
}
.content :not(pre) > code {
  background: var(--code-inline-bg);
  border: 1px solid var(--code-border);
  border-radius: 6px;
  padding: 2px 6px;
  color: var(--code-text);
  font-family:
    ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New",
    monospace;
  font-size: 0.95em;
}
.content .chroma {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 12px;
  padding: 12px 14px;
  margin: 14px 0;
  overflow: auto;
}
.content .chroma pre,
.content .chroma code {
  background: transparent;
  color: var(--code-text);
}
/* Blockquotes */
.content blockquote {
  margin: 16px 0;
  padding: 12px 16px;
  border-left: 4px solid var(--accent);
  background: #e9edf5;
  color: var(--heading);
  border-radius: 10px;
}
.content blockquote p {
  margin: 0;
}
.content blockquote p + p {
  margin-top: 8px;
}
.content blockquote > :first-child {
  margin-top: 0;
}
.content blockquote > :last-child {
  margin-bottom: 0;
}
/* Mermaid container */
.mermaid {
  display: block;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 12px;
  padding: 14px 16px;
  margin: 14px 0;
  overflow: auto;
}
.mermaid svg {
  max-width: 100%;
  height: auto;
}

/* Tables */
.content table {
  border-collapse: collapse;
  width: 100%;
  margin: 16px 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}
.content th,
.content td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.content th {
  background: #f8fafc;
  font-weight: 600;
  color: var(--heading);
  border-bottom: 2px solid var(--border);
}
.content td {
  background: #fff;
}
.content tr:hover td {
  background: #f8fafc;
}
.content tr:last-child td {
  border-bottom: 0;
}

.single .content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1.5px;
  text-decoration-color: var(--accent-weak);
}
.single .content a:hover {
  color: var(--accent);
  text-decoration-color: currentcolor;
}
.single .content a:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Tags page header */
.tags-header {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: space-between;
  margin: 8px 0 12px;
}
.tag-filter {
  flex: 1 1 420px;
  max-width: 520px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card);
}
.tag-filter:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-weak);
}
.tags-meta {
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
}
.tags-subtitle {
  margin: 12px 0 4px;
  font-size: 16px;
  color: var(--heading);
}

.post-navigation {
  display: flex;
  gap: 12px;
  justify-content: space-between;
  margin: 24px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.post-navigation .nav-link {
  flex: 1 1 0;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #f7faff;
  color: inherit;
  text-decoration: none;
  transition:
    transform 0.12s ease,
    background 0.12s ease,
    border-color 0.12s ease,
    box-shadow 0.12s ease;
  white-space: normal;
  overflow: visible;
  text-overflow: initial;
  overflow-wrap: anywhere;
}
.post-navigation .nav-link:hover {
  background: #f0f7ff;
  transform: translateY(-1px);
}
.post-navigation .nav-link:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-weak);
}
.post-navigation .prev {
  text-align: left;
  align-items: flex-start;
  justify-content: center;
}
.post-navigation .next {
  text-align: right;
  align-items: flex-end;
  justify-content: center;
}

/* Post navigation label/title */
.post-navigation .nav-label {
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1;
}
.post-navigation .nav-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
}

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 36px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
  color: var(--muted);
  font-size: 14px;
}

/* Related posts */
.related-posts {
  margin: 28px 0 0;
}
.related-title {
  font-size: 18px;
  margin: 18px 0 10px;
  color: var(--heading);
}
.related-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}
.related-list li {
  padding: 0;
}
.related-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card);
  color: inherit;
  text-decoration: none;
  transition:
    transform 0.12s ease,
    box-shadow 0.12s ease;
}
.related-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.06);
}
.related-item .r-cover {
  width: 120px;
  height: 68px;
  object-fit: cover;
  border-radius: 10px;
  background: #f6f7f9;
  border: 1px solid var(--border);
}
.related-item .r-body {
  min-width: 0;
}
.related-item .r-title {
  margin: 0 0 4px;
  font-size: 15px;
  line-height: 1.4;
  color: var(--heading);
}
.related-item time {
  color: var(--muted);
  font-size: 12px;
}

/* Terms (tags) list */
.terms {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
  list-style: none;
  padding: 0;
  margin: 8px 0 20px;
}
.terms a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #fff;
  color: inherit;
  transition:
    transform 0.12s ease,
    background 0.12s ease;
}
.terms a:hover {
  background: #f4f6f8;
  transform: translateY(-1px);
}
.terms a:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-weak);
}
.term-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.term-count {
  min-width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: #f1f5f9;
  color: var(--text);
  font-size: 12px;
}
/* Modern chips */
.terms .tag-chip {
  background: var(--card);
  border-radius: 999px;
  border: 1px solid var(--border);
  padding: 10px 14px;
}
.terms .tag-chip .term-name {
  position: relative;
  padding-left: 18px;
}
.terms .tag-chip .term-name::before {
  content: "#";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--muted);
}
/* Emphasis for popular */
.terms.popular .tag-chip {
  border-color: var(--accent);
  background: #eef3fb;
}
.theme-dark .terms.popular .tag-chip {
  background: #0f1c30;
}

@media (width <= 600px) {
  .tags-header {
    flex-wrap: wrap;
    gap: 8px;
  }
  .tags-meta {
    order: 2;
    width: 100%;
  }
}

/* Tag cloud sizing (5 levels) */
.terms.tag-cloud .tag-l1 .term-name {
  font-size: 0.9rem;
}
.terms.tag-cloud .tag-l2 .term-name {
  font-size: 1.05rem;
}
.terms.tag-cloud .tag-l3 .term-name {
  font-size: 1.2rem;
}
.terms.tag-cloud .tag-l4 .term-name {
  font-size: 1.35rem;
}
.terms.tag-cloud .tag-l5 .term-name {
  font-size: 1.5rem;
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 20px 0 8px;
  flex-wrap: wrap;
}
.pagination .page {
  display: inline-block;
  min-width: 36px;
  text-align: center;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card);
  color: inherit;
  text-decoration: none;
}
.pagination .page:hover {
  background: #f4f6f8;
}
.pagination .page.current {
  background: var(--text);
  color: #fff;
  border-color: var(--text);
}
/* Ellipsis item */
.pagination .page.gap {
  border-color: transparent;
  background: transparent;
  min-width: auto;
  padding: 8px 6px;
  cursor: default;
}
/* Dark pagination tweaks */
/* duplicate pagination dark styles removed (defined earlier) */

@media (width <= 600px) {
  .pagination {
    gap: 6px;
  }
  .pagination .page {
    padding: 10px 12px;
    border-radius: 12px;
  }
  /* Keep only Prev / Current / Next on small screens */
  .pagination .page:not(:is(.prev, .next, .current)) {
    display: none;
  }
}

/* Archives timeline */
.timeline {
  position: relative;
  margin: 16px 0 32px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 22px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.08), rgba(0, 0, 0, 0.04));
}
.tl-year {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 18px 0 8px;
  padding-left: 44px;
}
.tl-year .year-count {
  color: var(--muted);
  font-weight: 400;
  font-size: 0.9em;
  margin-left: 6px;
}
.tl-year-label {
  margin: 0;
  font-size: 20px;
  color: var(--heading);
}
.tl-dot {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  border-radius: 999px;
  background: #fff;
  border: 2px solid var(--accent);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
}
.tl-list {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
}
.tl-item {
  position: relative;
  display: flex;
  gap: 12px;
  padding: 10px 0 10px 44px;
}
.tl-item .tl-marker {
  position: absolute;
  left: 18px;
  top: 22px;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}
.tl-content {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.tl-content time {
  color: var(--muted);
  font-size: 13px;
}
.tl-title {
  font-size: 16px;
  color: var(--heading);
  text-decoration: none;
}
.tl-title:hover {
  text-decoration: underline;
}
/* (removed) tl-tags styles, tags hidden on archive timeline */

/* Search highlight */
mark.hl {
  background: rgba(255, 235, 59, 0.45);
  color: inherit;
  padding: 0 2px;
  border-radius: 3px;
}

/* Search modal */
.search-modal {
  position: fixed;
  inset: 0;
  display: none;
  z-index: 70;
}
.search-modal.open {
  display: block;
}
.search-modal .sm-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
}
.search-modal .sm-panel {
  position: relative;
  margin: 5vh auto;
  width: min(1200px, 92vw);
  max-width: none;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
  overflow: hidden;
}

/* Dark theme overrides */
.theme-dark {
  --bg: #0b1220;
  --text: #cbd5e1; /* dimmer body text for comfort */
  --heading: #e2e8f0;
  --muted: #94a3b8;
  --card: #0f172a;
  --border: #1f2937;
  --accent: #8ab4f8; /* softer in dark */
  --accent-weak: rgba(138, 180, 248, 0.22);
  --code-bg: #0b1220;
  --code-border: #1f2937;
  --code-text: #d1d5db;
  --code-inline-bg: #111827;
}

.theme-dark .site-nav a:hover {
  background: rgba(255, 255, 255, 0.08);
}
.theme-dark .theme-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
}
.theme-dark .pagination .page {
  background: var(--card);
}
.theme-dark .pagination .page:hover {
  background: rgba(255, 255, 255, 0.06);
}
.theme-dark .related-item {
  background: var(--card);
}
.theme-dark .terms a {
  background: var(--card);
}
.theme-dark .term-count {
  background: #111827;
}
.theme-dark .post-navigation .nav-link {
  background: #0c1a2b;
}
.theme-dark .search-modal .sm-panel {
  background: var(--card);
}

/* Improve readability for dark */
.theme-dark .card-summary {
  color: var(--text);
}
.theme-dark .content table {
  border-color: var(--border);
}
.theme-dark .content th {
  background: #111827;
  color: var(--heading);
  border-bottom: 2px solid var(--border);
}
.theme-dark .content td {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.theme-dark .content tr:hover td {
  background: rgba(255, 255, 255, 0.04);
}
.theme-dark .single .content a {
  color: var(--accent);
  text-decoration-color: var(--accent-weak);
}
.theme-dark .single .content a:hover {
  color: var(--accent);
  text-decoration-color: currentcolor;
}
.theme-dark .tl-dot {
  background: var(--card);
}
/* Dark blockquotes */
.theme-dark .content blockquote {
  background: #0c1a2b;
  color: var(--text);
  border-left-color: var(--accent);
}

/* Dark overrides for Hugo's inline-highlight (noClasses=true) */
.theme-dark .highlight pre {
  background: var(--code-bg) !important;
  border: 1px solid var(--code-border) !important;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25) !important;
  color: var(--code-text) !important;
}
.theme-dark .highlight code {
  background: transparent !important;
  color: var(--code-text) !important;
}

.search-modal .sm-header {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.search-modal #search-modal-title {
  margin: 0;
  white-space: nowrap;
  font-size: 16px;
  font-weight: 400;
}
.search-modal .sm-input {
  flex: 1;
  min-width: 0;
  padding: 12px 16px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  font-size: 16px;
  background-color: #fff;
  color: #111827;
}
.search-modal .sm-input:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Dark mode styles for search input */
[data-theme="dark"] .search-modal .sm-input {
  background-color: #374151;
  color: #f9fafb;
  border-color: #4b5563;
}

[data-theme="dark"] .search-modal .sm-input:focus {
  border-color: #60a5fa;
  box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.1);
}

[data-theme="dark"] .search-modal .sm-input::placeholder {
  color: #9ca3af;
}

/* Search filter UI */
.search-modal .sm-search-row {
  display: flex;
  gap: 8px;
  align-items: center;
  width: 100%;
}

.search-modal .sm-filter-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  background: #fff;
  color: #6b7280;
  cursor: pointer;
  transition: all 0.2s ease;
}

.search-modal .sm-filter-btn:hover {
  background: #f9fafb;
  border-color: #9ca3af;
}

.search-modal .sm-filter-btn[aria-expanded="true"] {
  background: #eff6ff;
  border-color: #3b82f6;
  color: #3b82f6;
}

.search-modal .sm-filters {
  padding: 16px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  background: #f9fafb;
}

.search-modal .sm-filter-group {
  display: flex;
  gap: 16px;
  margin-bottom: 8px;
}

.search-modal .sm-filter-group:last-child {
  margin-bottom: 0;
}

.search-modal .sm-filter-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: #374151;
  cursor: pointer;
}

.search-modal .sm-filter-label input[type="checkbox"] {
  margin: 0;
}

.search-modal .sm-select {
  padding: 4px 8px;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  background: #fff;
  font-size: 14px;
  color: #374151;
}

/* Dark mode styles for filters */
[data-theme="dark"] .search-modal .sm-filter-btn {
  background: #374151;
  border-color: #4b5563;
  color: #d1d5db;
}

[data-theme="dark"] .search-modal .sm-filter-btn:hover {
  background: #4b5563;
  border-color: #6b7280;
}

[data-theme="dark"] .search-modal .sm-filter-btn[aria-expanded="true"] {
  background: #1e40af;
  border-color: #3b82f6;
  color: #93c5fd;
}

[data-theme="dark"] .search-modal .sm-filters {
  background: #374151;
  border-color: #4b5563;
}

[data-theme="dark"] .search-modal .sm-filter-label {
  color: #f3f4f6;
}

[data-theme="dark"] .search-modal .sm-select {
  background: #374151;
  border-color: #4b5563;
  color: #f3f4f6;
}

/* Search history styles */
.search-modal .sm-history {
  border-bottom: 1px solid #e5e7eb;
  padding: 16px;
}

.search-modal .sm-history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.search-modal .sm-history-header h3 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: #374151;
}

.search-modal .sm-clear-btn {
  background: none;
  border: none;
  color: #6b7280;
  font-size: 12px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.search-modal .sm-clear-btn:hover {
  background: #f3f4f6;
  color: #374151;
}

.search-modal .sm-history-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.search-modal .sm-history-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  font-size: 13px;
  color: #374151;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.search-modal .sm-history-item:hover {
  background: #eff6ff;
  border-color: #3b82f6;
  color: #1e40af;
}

.search-modal .sm-history-remove {
  background: none;
  border: none;
  color: #9ca3af;
  cursor: pointer;
  padding: 0;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  font-size: 10px;
  line-height: 1;
  transition: all 0.2s ease;
}

.search-modal .sm-history-remove:hover {
  background: #ef4444;
  color: #fff;
}

/* Dark mode styles for history */
[data-theme="dark"] .search-modal .sm-history {
  border-color: #4b5563;
}

[data-theme="dark"] .search-modal .sm-history-header h3 {
  color: #f9fafb;
}

[data-theme="dark"] .search-modal .sm-clear-btn {
  color: #9ca3af;
}

[data-theme="dark"] .search-modal .sm-clear-btn:hover {
  background: #4b5563;
  color: #f3f4f6;
}

[data-theme="dark"] .search-modal .sm-history-item {
  background: #374151;
  border-color: #4b5563;
  color: #d1d5db;
}

[data-theme="dark"] .search-modal .sm-history-item:hover {
  background: #1e40af;
  border-color: #3b82f6;
  color: #93c5fd;
}

.search-modal .sm-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
  min-height: 20px;
}
.search-modal .sm-loading {
  padding: 8px 16px;
  color: var(--muted);
  font-size: 14px;
  border-bottom: 1px solid var(--border);
}
.search-modal .sm-body {
  max-height: 60vh;
  overflow: auto;
  padding: 0;
}

.search-modal .sm-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  background: #f9fafb;
  text-align: center;
}

.search-modal .sm-hint {
  font-size: 12px;
  color: var(--muted);
  font-style: italic;
}

/* Dark mode footer */
[data-theme="dark"] .search-modal .sm-footer {
  background: #374151;
  border-color: #4b5563;
}

.theme-dark .search-modal .sm-footer {
  background: #111827;
}
.search-modal .result {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 16px;
  align-items: start;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  color: inherit;
  text-decoration: none;
  min-width: 0;
  transition: background-color 0.2s ease;
}
.search-modal .result:hover {
  background: #f4f6f8;
}
.search-modal .result:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  background: #f0f7ff;
  box-shadow: 0 0 0 3px var(--accent-weak);
}
.search-modal .result:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  background: #f0f7ff;
}
.search-modal .result-cover {
  grid-column: 1;
  grid-row: 1 / span 2;
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: 8px;
  background: #f6f7f9;
  border: 1px solid var(--border);
}
.search-modal .result-cover.placeholder {
  display: block;
  background: #f6f7f9;
  border: 1px solid var(--border);
}
.search-modal .result-content {
  grid-column: 2;
  min-width: 0;
}

.search-modal .result-title {
  font-size: 18px;
  margin: 0 0 8px;
  min-width: 0;
  overflow-wrap: break-word;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.search-modal .result-meta {
  color: var(--muted);
  font-size: 12px;
  margin: 0 0 8px;
  white-space: nowrap;
}
.search-modal .result-summary {
  margin: 0;
  color: #333;
  min-width: 0;
  overflow-wrap: anywhere;
  word-break: normal;
  line-height: 1.5;
}

/* Search highlight styles */
.search-modal mark.hl {
  background-color: #fef3c7;
  color: #92400e;
  padding: 1px 2px;
  border-radius: 2px;
  font-weight: 500;
}

.search-modal mark.hl-title {
  background-color: #dbeafe;
  color: #1e40af;
  padding: 1px 3px;
  border-radius: 3px;
  font-weight: 600;
}

.search-modal mark.hl-taxonomy {
  background-color: #d1fae5;
  color: #047857;
  padding: 1px 2px;
  border-radius: 2px;
  font-weight: 500;
}

/* Match type badges */
.search-modal .match-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 6px;
  border-radius: 12px;
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.search-modal .match-title {
  background-color: #dbeafe;
  color: #1e40af;
}

.search-modal .match-summary {
  background-color: #e0e7ff;
  color: #4338ca;
}

.search-modal .match-content {
  background-color: #fef3c7;
  color: #92400e;
}

.search-modal .match-taxonomy {
  background-color: #d1fae5;
  color: #047857;
}

@media (width >= 800px) {
  .search-modal .sm-panel {
    margin: 8vh auto;
    width: min(1100px, 90vw);
  }

  .search-modal .sm-header {
    padding: 20px 24px;
  }

  .search-modal .result {
    grid-template-columns: 96px 1fr;
    padding: 20px 24px;
    gap: 20px;
  }

  .search-modal .result-cover {
    width: 96px;
    height: 96px;
  }

  .search-modal .result-title {
    font-size: 20px;
  }

  .search-modal .sm-history {
    padding: 20px 24px;
  }
}

/* UI/UX Improvements */

/* Scroll to top button with progress ring */
.scroll-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.95);
  color: #374151;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  backdrop-filter: blur(10px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  z-index: 1000;
  padding: 0;
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-to-top:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.2);
}

.scroll-to-top:active {
  transform: translateY(-1px);
}

.scroll-to-top:focus,
.scroll-to-top:focus-visible,
.scroll-to-top:active {
  outline: none !important;
  box-shadow: none !important;
  border: none !important;
}

.scroll-progress-ring {
  position: relative;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.progress-ring {
  position: absolute;
  top: 4px;
  left: 4px;
  transform: rotate(-90deg);
  width: 52px;
  height: 52px;
}

.progress-ring-bg {
  fill: none;
  stroke: rgba(0, 0, 0, 0.1);
  stroke-width: 3;
}

.progress-ring-fill {
  fill: none;
  stroke: #3b82f6;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 138.23; /* 2 * π * 22 */
  stroke-dashoffset: 138.23;
  transition: stroke-dashoffset 0.3s ease;
}

.scroll-content {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.scroll-icon {
  margin-bottom: 2px;
  opacity: 1;
  transition: opacity 0.3s ease;
}

.progress-text {
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  opacity: 0;
  transition: opacity 0.3s ease;
  min-width: 20px;
  text-align: center;
  letter-spacing: -0.5px;
}

.scroll-to-top.show-progress .scroll-icon {
  opacity: 0;
}

.scroll-to-top.show-progress .progress-text {
  opacity: 1;
}

/* Hover state - show arrow, hide progress */
.scroll-to-top:hover .scroll-icon {
  opacity: 1 !important;
}

.scroll-to-top:hover .progress-text {
  opacity: 0 !important;
}

/* 100% completion state */
.scroll-to-top.completed .progress-ring-fill {
  stroke-dashoffset: 0;
  stroke: #10b981; /* Green color for completion */
}

.scroll-to-top.completed .progress-text {
  color: #10b981;
  font-weight: 800;
}

/* Dark mode completion */
[data-theme="dark"] .scroll-to-top.completed .progress-ring-fill {
  stroke: #34d399;
}

[data-theme="dark"] .scroll-to-top.completed .progress-text {
  color: #34d399;
}

.theme-dark .scroll-to-top.completed .progress-ring-fill {
  stroke: #34d399;
}

.theme-dark .scroll-to-top.completed .progress-text {
  color: #34d399;
}

/* Dark mode scroll button */
[data-theme="dark"] .scroll-to-top {
  background: rgba(15, 23, 42, 0.95);
  color: #f1f5f9;
}

[data-theme="dark"] .progress-ring-bg {
  stroke: rgba(255, 255, 255, 0.2);
}

[data-theme="dark"] .progress-ring-fill {
  stroke: #60a5fa;
}

.theme-dark .scroll-to-top {
  background: rgba(15, 23, 42, 0.95);
  color: #f1f5f9;
}

.theme-dark .progress-ring-bg {
  stroke: rgba(255, 255, 255, 0.2);
}

.theme-dark .progress-ring-fill {
  stroke: #60a5fa;
}

/* Reading progress bar */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(0, 0, 0, 0.05);
  z-index: 1001;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.reading-progress.visible {
  opacity: 1;
}

.reading-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, #3b82f6, #8b5cf6);
  width: 0%;
  transition: width 0.1s ease;
  border-radius: 0 2px 2px 0;
}

/* Dark mode progress bar */
[data-theme="dark"] .reading-progress {
  background: rgba(255, 255, 255, 0.1);
}

.theme-dark .reading-progress {
  background: rgba(255, 255, 255, 0.1);
}

/* Loading animation */
.page-loading {
  position: fixed;
  inset: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(4px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.page-loading.active {
  opacity: 1;
  visibility: visible;
}

.loading-spinner {
  text-align: center;
  color: #6b7280;
}

.spinner-ring {
  width: 40px;
  height: 40px;
  border: 3px solid #e5e7eb;
  border-top: 3px solid #3b82f6;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 16px;
}

.loading-text {
  font-size: 14px;
  color: #6b7280;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Dark mode loading */
[data-theme="dark"] .page-loading {
  background: rgba(15, 23, 42, 0.95);
}

[data-theme="dark"] .loading-text {
  color: #94a3b8;
}

[data-theme="dark"] .spinner-ring {
  border-color: #374151;
  border-top-color: #60a5fa;
}

.theme-dark .page-loading {
  background: rgba(15, 23, 42, 0.95);
}

.theme-dark .loading-text {
  color: #94a3b8;
}

.theme-dark .spinner-ring {
  border-color: #374151;
  border-top-color: #60a5fa;
}

/* Smooth scrolling improvements */
html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .scroll-to-top,
  .reading-progress-bar {
    transition: none;
  }

  .page-loading {
    transition: none;
  }

  .spinner-ring {
    animation: none;
  }
}

/* Mobile adjustments */
@media (width <= 768px) {
  .scroll-to-top {
    bottom: 1.5rem;
    right: 1.5rem;
    width: 56px;
    height: 56px;
  }

  .scroll-progress-ring {
    width: 56px;
    height: 56px;
  }

  .progress-ring {
    width: 48px;
    height: 48px;
  }

  .progress-ring-fill,
  .progress-ring-bg {
    stroke-dasharray: 138.23; /* 2 * π * 22 (same as desktop) */
  }

  .progress-ring-fill {
    stroke-dashoffset: 138.23;
  }

  .progress-text {
    font-size: 10px;
    min-width: 18px;
  }

  .reading-progress {
    height: 2px;
  }
}

@media (width <= 600px) {
  .search-modal .sm-panel {
    margin: 2vh auto;
    width: 95vw;
    border-radius: 8px;
  }

  .search-modal .sm-header {
    padding: 16px;
  }

  .search-modal .result {
    grid-template-columns: 56px 1fr;
    padding: 16px;
    gap: 12px;
  }

  .search-modal .result-cover {
    width: 56px;
    height: 56px;
  }

  .search-modal .sm-history {
    padding: 16px;
  }

  .search-modal .sm-filter-group {
    flex-direction: column;
    gap: 8px;
  }

  .header-inner {
    flex-wrap: wrap;
  }
  .nav-toggle {
    display: flex;
  }
  .search {
    order: 2;
    width: 100%;
    margin-left: 0;
  }
  .search-input {
    width: 100%;
    max-width: 100%;
  }
  .site-nav {
    order: 3;
    width: 100%;
    display: none;
    flex-direction: column;
    gap: 6px;
    margin-top: 8px;
  }
  .site-nav.is-open {
    display: flex;
  }
  /* Center theme toggle like other items */
  .site-nav .theme-toggle {
    justify-content: center;
    align-self: stretch;
    padding: 8px 10px;
  }
}