/*
Theme Name: Field Notes
Description: A bright, compact, text-first geek blog child theme for Twenty Twelve.
Version: 1.2.0
Template: twentytwelve
Requires at least: 6.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: field-notes
Tags: blog, two-columns, right-sidebar, custom-menu, custom-logo, editor-style, sticky-post, translation-ready
*/

:root {
  --bg:#f7f8fa;
  --paper:#fff;
  --ink:#202631;
  --muted:#626d7c;
  --line:#e3e7ed;
  --accent:#2457db;
  --soft:#edf2ff;
  --mono:ui-monospace,SFMono-Regular,Consolas,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
}
* {
  box-sizing:border-box;
}
html {
  scroll-behavior:smooth;
  scroll-padding-top:24px;
}
body {
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font:15px/1.65 var(--sans);
}
a {
  color:inherit;
  text-decoration:none;
}
a:hover {
  color:var(--accent);
}
button,input,textarea,select {
  font:inherit;
}
button {
  cursor:pointer;
}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible {
  outline:2px solid var(--accent);
  outline-offset:4px;
}
img {
  max-width:100%;
  height:auto;
}
h1,h2,h3,h4,p {
  margin:0;
}
ul,ol {
  padding-left:22px;
}
button,input,textarea,select {
  border:1px solid var(--line);
  border-radius:5px;
  background:var(--paper);
  color:var(--ink);
}
button,input[type=submit] {
  padding:8px 13px;
}
input,textarea,select {
  padding:9px 11px;
}
input[type=checkbox] {
  width:auto;
}
textarea {
  width:100%;
  max-width:100%;
}
input {
  max-width:100%;
}
[hidden] {
  display:none!important;
}
.mono,.eyebrow,.entry-meta,.post-date,.tag,.page-numbers,.section-label {
  font-family:var(--mono);
}
.screen-reader-text,.assistive-text {
  position:absolute;
  width:1px;
  height:1px;
  padding:0;
  margin:-1px;
  overflow:hidden;
  clip-path:inset(50%);
  white-space:nowrap;
  border:0;
}
.skip-link:focus {
  position:fixed;
  top:10px;
  left:10px;
  z-index:100;
  width:auto;
  height:auto;
  padding:12px;
  background:#fff;
  clip-path:none;
}
.site-header {
  background:var(--paper);
  border-bottom:1px solid var(--line);
}
.header-inner {
  max-width:1240px;
  margin:auto;
  padding:23px 28px;
  display:flex;
  align-items:center;
  gap:40px;
}
.brand {
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.brand-mark {
  font:700 22px var(--mono);
  color:var(--accent);
}
.site-title {
  font-size:18px;
  font-weight:750;
  letter-spacing:-.5px;
}
.site-navigation {
  flex:1;
}
.nav-menu,.nav-menu ul {
  list-style:none;
  margin:0;
  padding:0;
}
.nav-menu {
  display:flex;
  gap:25px;
  align-items:center;
}
.nav-menu li {
  position:relative;
}
.nav-menu a {
  display:block;
  font-size:13px;
  padding:7px 0;
}
.nav-menu .current-menu-item>a,.nav-menu .current_page_item>a {
  color:var(--accent);
}
.nav-menu .sub-menu,.nav-menu .children {
  display:none;
  position:absolute;
  z-index:10;
  min-width:180px;
  background:#fff;
  border:1px solid var(--line);
  padding:10px 16px;
  top:100%;
  left:0;
}
.nav-menu li:hover>ul,.nav-menu li:focus-within>ul {
  display:block;
}
.nav-menu ul ul {
  left:100%;
  top:0;
}
.menu-toggle {
  display:none;
}
.search-form {
  display:flex;
  gap:6px;
  align-items:center;
}
.header-search {
  width:230px;
  position:relative;
}
.header-search .search-form {
  position:relative;
}
.header-search .search-field {
  width:100%;
  padding-right:53px;
  font-size:12px;
  background:var(--bg);
}
.search-submit {
  font-size:12px;
}
.header-search .search-submit {
  position:absolute;
  right:4px;
  border:0;
  background:transparent;
  padding:5px 8px;
  color:var(--muted);
}
.site-shell {
  max-width:1240px;
  margin:auto;
  padding:0 28px;
}
.page-intro {
  padding:42px 0 28px;
}
.intro-top {
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
}
.eyebrow {
  font-size:11px;
  letter-spacing:1.5px;
  color:var(--muted);
  margin-bottom:9px;
}
.eyebrow::before {
  content:"";
  display:inline-block;
  width:6px;
  height:6px;
  background:var(--accent);
  margin-right:9px;
  vertical-align:1px;
}
.page-intro h1 {
  font-size:32px;
  letter-spacing:-1.1px;
  line-height:1.3;
}
.page-intro .description {
  color:var(--muted);
  font-size:14px;
  margin-top:12px;
  max-width:760px;
}
.index-count {
  font:12px var(--mono);
  color:var(--muted);
}
.topic-nav {
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  padding:0 0 27px;
}
.topic-link {
  font-size:12px;
  padding:5px 12px;
  border:1px solid var(--line);
  background:#fff;
  border-radius:4px;
}
.topic-link span {
  color:var(--muted);
  font:10px var(--mono);
  margin-left:9px;
}
.topic-link.active {
  color:var(--accent);
  background:var(--soft);
  border-color:#cbd8ff;
}
.main-grid {
  display:grid;
  grid-template-columns:minmax(0,1fr) 252px;
  gap:40px;
  padding-bottom:50px;
}
.site-content {
  min-width:0;
}
.list-bar {
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:12px 0;
  border-top:2px solid var(--ink);
  border-bottom:1px solid var(--line);
  font-size:11px;
  color:var(--muted);
}
.section-label {
  letter-spacing:1px;
  font-size:11px;
}
.post-row {
  display:grid;
  grid-template-columns:90px minmax(0,1fr);
  gap:20px;
  padding:25px 0;
  border-bottom:1px solid var(--line);
}
.post-date {
  font-size:11px;
  line-height:1.8;
  color:var(--muted);
  padding-top:5px;
}
.post-date .year {
  display:block;
  font-size:10px;
  color:var(--muted);
}
.post-kicker {
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:11px;
  color:var(--accent);
  margin-bottom:6px;
}
.pin {
  font:10px var(--mono);
  color:var(--muted);
  border:1px solid var(--line);
  padding:0 5px;
  border-radius:3px;
}
.post-row .entry-title {
  font-size:20px;
  line-height:1.5;
  font-weight:650;
  letter-spacing:-.35px;
  overflow-wrap:anywhere;
}
.entry-summary {
  font-size:13px;
  line-height:1.85;
  color:var(--muted);
  margin-top:8px;
}
.post-row .entry-summary p {
  display:-webkit-box;
  -webkit-box-orient:vertical;
  -webkit-line-clamp:2;
  overflow:hidden;
}
.post-row .entry-meta {
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  font-size:10px;
  color:var(--muted);
  margin-top:13px;
}
.tag {
  color:var(--muted);
  font-size:10px;
}
.tag:hover {
  color:var(--accent);
}
.reading-time {
  margin-left:auto;
  white-space:nowrap;
}
.sidebar {
  font-size:13px;
  min-width:0;
}
.sidebar-section,.widget {
  margin:0 0 26px;
  padding-bottom:25px;
  border-bottom:1px solid var(--line);
}
.sidebar h2,.widget-title {
  font-size:11px;
  font-family:var(--mono);
  letter-spacing:1px;
  margin-bottom:16px;
  color:var(--muted);
  font-weight:500;
}
.about-panel {
  background:#fff;
  border:1px solid var(--line);
  padding:20px;
  border-radius:6px;
  margin-bottom:26px;
}
.about-panel .terminal {
  color:var(--accent);
  font:13px var(--mono);
  margin-bottom:14px;
}
.about-panel h2 {
  color:var(--ink);
  font:600 15px var(--sans);
  letter-spacing:0;
  margin-bottom:9px;
}
.about-panel p {
  color:var(--muted);
  font-size:12px;
  line-height:1.9;
}
.about-links {
  display:flex;
  gap:20px;
  border-top:1px solid var(--line);
  padding-top:13px;
  margin-top:17px;
  font:11px var(--mono);
}
.compact-list {
  list-style:none;
  padding:0;
  margin:0;
}
.compact-list li {
  display:flex;
  justify-content:space-between;
  gap:12px;
  margin:10px 0;
}
.compact-list .count {
  font:11px var(--mono);
  color:var(--muted);
}
.tag-cloud {
  display:flex;
  gap:7px;
  flex-wrap:wrap;
}
.tag-cloud a {
  font:11px var(--mono);
  padding:4px 8px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:4px;
}
.sidebar-note {
  font:10px/1.9 var(--mono);
  color:var(--muted);
}
.pagination {
  margin-top:25px;
}
.pagination .nav-links {
  display:flex;
  gap:6px;
  flex-wrap:wrap;
  align-items:center;
}
.page-numbers {
  display:inline-block;
  padding:5px 11px;
  border:1px solid var(--line);
  border-radius:4px;
  font-size:11px;
  background:#fff;
}
.page-numbers.current {
  background:var(--ink);
  color:#fff;
  border-color:var(--ink);
}
.site-footer {
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  color:var(--muted);
  font:11px/1.8 var(--mono);
}
.footer-links {
  display:flex;
  flex-wrap:wrap;
  gap:18px;
}
.breadcrumb {
  font:11px var(--mono);
  color:var(--muted);
  margin-bottom:23px;
}
.article-layout {
  padding-top:32px;
}
@media (min-width: 961px) {
  .main-grid.article-layout {
    grid-template-columns:minmax(0,760px) 252px;
    justify-content:space-between;
  }
}
.article-header {
  padding-bottom:28px;
  border-bottom:1px solid var(--line);
  margin-bottom:28px;
}
.article-header h1 {
  font-size:34px;
  line-height:1.4;
  letter-spacing:-.8px;
  overflow-wrap:anywhere;
  margin:10px 0 16px;
}
.article-header .entry-meta {
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  font-size:11px;
  color:var(--muted);
}
.entry-content {
  font-size:16px;
  line-height:1.9;
  overflow-wrap:anywhere;
}
.entry-content>* {
  margin:0 0 22px;
}
.entry-content h2 {
  font-size:24px;
  line-height:1.5;
  margin:36px 0 18px;
  letter-spacing:-.4px;
}
.entry-content h3 {
  font-size:19px;
  margin:28px 0 14px;
}
.entry-content h4 {
  font-size:17px;
  margin:24px 0 12px;
}
.entry-content a {
  color:var(--accent);
  text-decoration:underline;
  text-underline-offset:3px;
}
.entry-content code {
  font:13px/1.7 var(--mono);
  background:#eaf0fa;
  border-radius:3px;
  padding:2px 5px;
}
.entry-content pre {
  position:relative;
  overflow:auto;
  background:#eef1f6;
  border:1px solid var(--line);
  border-radius:6px;
  padding:22px 20px;
  font:13px/1.85 var(--mono);
  tab-size:4;
}
.entry-content pre code {
  background:none;
  padding:0;
  font:inherit;
  color:#33415a;
}
.code-copy {
  position:absolute;
  top:7px;
  right:7px;
  font:10px var(--mono);
  padding:4px 8px;
  background:var(--paper);
}
.entry-content pre:has(.code-copy) {
  padding-top:40px;
}
.entry-content blockquote {
  border-left:3px solid var(--accent);
  padding:10px 20px;
  background:var(--soft);
  color:#47566f;
}
.entry-content blockquote p {
  margin:0;
}
.entry-content table {
  display:block;
  max-width:100%;
  overflow:auto;
  border-collapse:collapse;
  font-size:13px;
}
.entry-content th,.entry-content td {
  padding:10px 14px;
  border:1px solid var(--line);
  text-align:start;
}
.entry-content th {
  background:#eef1f6;
}
.entry-content .wp-block-table table {
  display:table;
}
.wp-block-table {
  overflow-x:auto;
}
.entry-content iframe,.entry-content video {
  max-width:100%;
}
.entry-content figure {
  max-width:100%;
  margin-left:0;
  margin-right:0;
}
.entry-content figcaption,.wp-caption-text {
  font-size:12px;
  color:var(--muted);
}
.entry-content .alignleft {
  float:left;
  margin-right:20px;
}
.entry-content .alignright {
  float:right;
  margin-left:20px;
}
.entry-content .aligncenter {
  display:block;
  margin-left:auto;
  margin-right:auto;
}
.entry-content::after {
  content:"";
  display:block;
  clear:both;
}
.entry-content hr {
  border:0;
  border-top:1px solid var(--line);
  margin:32px 0;
}
.toc {
  padding:18px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:6px;
  margin-bottom:26px;
}
.toc ol {
  list-style:none;
  padding:0;
  margin:0;
}
.toc li {
  margin:9px 0;
  font-size:12px;
}
.toc .toc-sub {
  padding-left:12px;
}
.article-tags {
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:22px 0;
  border-top:1px solid var(--line);
  margin-top:32px;
}
.nav-single {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:20px;
  border-top:1px solid var(--line);
  padding:22px 0;
  font-size:13px;
}
.nav-single small {
  display:block;
  color:var(--muted);
  font:10px var(--mono);
  margin-bottom:6px;
}
.nav-next {
  text-align:right;
}
.comments-area {
  border-top:1px solid var(--line);
  margin-top:15px;
  padding-top:28px;
  font-size:14px;
}
.comments-title,.comment-reply-title {
  font-size:20px;
  margin-bottom:20px;
}
.commentlist,.commentlist .children {
  list-style:none;
}
.commentlist {
  padding:0;
}
.commentlist li {
  padding:18px 0;
  border-bottom:1px solid var(--line);
}
.commentlist .avatar {
  float:left;
  margin-right:12px;
  border-radius:50%;
}
.commentlist cite {
  font-style:normal;
}
.commentlist header {
  margin-bottom:12px;
}
.commentlist time,.comment-notes,.logged-in-as {
  color:var(--muted);
  font-size:12px;
}
.commentlist .reply {
  font-size:12px;
  color:var(--accent);
}
.comment-form p {
  margin:15px 0;
}
.comment-form label {
  display:block;
  margin-bottom:6px;
}
.comment-form-cookies-consent label {
  display:inline;
}
.form-submit input {
  color:white;
  background:var(--accent);
  border-color:var(--accent);
}
.empty-state {
  padding:40px 0;
}
.empty-state h1,.empty-state h2 {
  font-size:28px;
  margin-bottom:14px;
}
.empty-state p {
  color:var(--muted);
  margin-bottom:20px;
}
.widget ul {
  list-style:none;
  padding:0;
}
.widget li {
  margin:9px 0;
}
.widget select {
  width:100%;
}
.widget a {
  overflow-wrap:anywhere;
}
.preview-note {
  color:var(--muted);
  font-size:11px;
}
.wp-calendar-table {
  width:100%;
  font-size:11px;
}
.full-width .main-grid {
  grid-template-columns:1fr;
}
.full-width .article-body {
  max-width:900px;
  margin:auto;
}
.rtl .nav-menu .sub-menu {
  left:auto;
  right:0;
}
@media(min-width:961px) {
  .article-sidebar {
    align-self:start;
    position:sticky;
    top:24px;
  }
}
@media(max-width:1100px) {
  .header-inner {
    gap:25px;
  }
  .nav-menu {
    gap:17px;
  }
  .header-search {
    width:190px;
  }
  .main-grid {
    gap:28px;
  }
}
@media(max-width:960px) {
  .main-grid {
    grid-template-columns:1fr;
  }
  .sidebar {
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:24px;
  }
  .sidebar-section,.widget,.about-panel {
    margin-bottom:0;
  }
  .article-sidebar {
    display:block;
  }
  .article-sidebar .sidebar-section {
    margin-bottom:24px;
  }
  .header-inner {
    flex-wrap:wrap;
    gap:18px;
  }
  .header-search {
    margin-left:auto;
  }
  .site-navigation {
    order:3;
    flex-basis:100%;
  }
  .nav-menu {
    gap:24px;
  }
}
@media(max-width:640px) {
  .site-shell {
    padding:0 20px;
  }
  .header-inner {
    padding:17px 20px;
    gap:14px;
  }
  .brand {
    flex:1;
  }
  .site-title {
    font-size:17px;
  }
  .js .menu-toggle {
    display:block;
    font-size:12px;
    padding:5px 10px;
  }
  .js .site-navigation {
    display:none;
  }
  .js .site-navigation.is-open {
    display:block;
  }
  .header-search {
    width:100%;
    order:4;
  }
  .header-search .search-field {
    font-size:13px;
  }
  .nav-menu {
    flex-wrap:wrap;
    gap:8px 22px;
  }
  .nav-menu .sub-menu,.nav-menu .children {
    position:static;
    border:0;
    border-left:1px solid var(--line);
    padding:0 0 0 12px;
    display:block;
    min-width:0;
  }
  .nav-menu ul ul {
    position:static;
  }
  .page-intro {
    padding:30px 0 22px;
  }
  .page-intro h1 {
    font-size:27px;
  }
  .intro-top {
    flex-direction:column;
    align-items:flex-start;
    gap:10px;
  }
  .index-count {
    font-size:10px;
    white-space:nowrap;
  }
  .topic-nav {
    padding-bottom:20px;
    gap:6px;
  }
  .topic-link {
    padding:4px 9px;
  }
  .main-grid {
    padding-bottom:32px;
  }
  .post-row {
    grid-template-columns:1fr;
    gap:6px;
    padding:21px 0;
  }
  .post-date {
    padding:0;
    display:flex;
    gap:5px;
  }
  .post-date .year {
    display:inline;
    font-size:11px;
  }
  .post-row .entry-title {
    font-size:19px;
  }
  .sidebar {
    grid-template-columns:1fr;
  }
  .article-header h1 {
    font-size:28px;
  }
  .article-layout {
    padding-top:24px;
  }
  .entry-content {
    font-size:15px;
  }
  .entry-content h2 {
    font-size:22px;
  }
  .entry-content pre {
    font-size:12px;
    padding-left:14px;
    padding-right:14px;
  }
  .nav-single {
    grid-template-columns:1fr;
  }
  .nav-next {
    text-align:left;
  }
  .site-footer {
    font-size:10px;
  }
  .search-form .search-field {
    min-width:0;
    flex:1;
  }
  .entry-content .alignleft,.entry-content .alignright {
    float:none;
    margin-left:0;
    margin-right:0;
  }
}
@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior:auto;
  }
  * {
    animation:none!important;
    transition:none!important;
  }
}
.brand-group {
  display:flex;
  align-items:center;
  gap:12px;
  min-width:0;
  flex-shrink:0;
}
.brand-group .custom-logo {
  display:block;
  max-height:32px;
  max-width:120px;
  width:auto;
  object-fit:contain;
}
.brand-group .custom-logo-link,
.brand-symbol {
  display:flex;
  align-items:center;
  flex-shrink:0;
}
.site-brand-icon {
  display:block;
  width:32px;
  height:32px;
  object-fit:contain;
  border-radius:5px;
}
.brand-group .site-title {
  overflow-wrap:anywhere;
}
.footer-registration {
  flex-basis:100%;
  min-width:0;
  padding-top:12px;
  border-top:1px solid var(--line);
  font:11px/1.8 var(--sans);
}
.header-tools {
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  max-width:360px;
  margin-left:auto;
  font-size:12px;
}
.header-widget {
  min-width:0;
  max-width:100%;
}
.header-widget-title {
  font-size:12px;
  margin-bottom:6px;
}
.header-tools .search-form,
.header-tools .wp-block-search {
  width:230px;
  max-width:100%;
}
.header-tools input[type="search"] {
  min-width:0;
  width:100%;
  background:var(--bg);
  font-size:12px;
}
.header-tools .wp-block-search__inside-wrapper {
  display:flex;
  gap:6px;
  border:0;
  padding:0;
}
.header-tools .wp-block-search__button {
  margin:0;
  padding:8px 10px;
  font-size:12px;
  background:var(--paper);
  color:var(--ink);
  border:1px solid var(--line);
  border-radius:5px;
}
.header-tools .wp-block-search__label {
  font-size:12px;
}
.header-tools p {
  margin:0;
}
@media (max-width:640px) {
  .header-tools {
    order:4;
    width:100%;
    max-width:none;
    margin-left:0;
  }
  .header-tools .header-widget,
  .header-tools .search-form,
  .header-tools .wp-block-search {
    width:100%;
  }
}
.article-cover {
  display:block;
  border-radius:5px;
}
.entry-content .katex {
  font-size:1.08em;
}
.entry-content .katex-display {
  max-width:100%;
  overflow-x:auto;
  overflow-y:hidden;
  margin:22px 0;
  padding:12px 0;
}
.toc .katex {
  font-size:1em;
}
.page-links {
  display:flex;
  gap:10px;
}
.post-password-form p {
  margin:12px 0;
}
.bypostauthor {
  border-left:2px solid var(--accent);
  padding-left:12px!important;
}
.gallery {
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;
}
.gallery-item {
  margin:0;
}
.gallery img {
  max-width:100%;
  height:auto;
}
.sticky .entry-title {
  font-weight:700;
}
.wp-caption {
  max-width:100%;
}
.wp-block-image img {
  height:auto;
}
.wp-block-button__link {
  background:var(--accent);
  color:#fff!important;
  border-radius:5px;
  text-decoration:none!important;
}
.wp-block-pullquote {
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
@media(max-width:640px) {
  .brand-group {
    flex:1;
  }
  .gallery {
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}