/* src/css/variables.css */
:root {
  --accent-orange: #ff8a1d;
  --accent-orange-rgb:
    255,
    138,
    29;
  --bg-primary: #faf9f7;
  --bg-secondary: #f2f0ec;
  --bg-subtle: #e8e5df;
  --text-primary: #1b1f23;
  --text-secondary: #37424f;
  --text-muted: #5a6675;
  --text-accent: var(--link-color);
  --border-subtle: #ddd7cf;
  --border-strong: #c2b8ac;
  --border-accent: var(--accent-orange);
  --link-color: #17406f;
  --link-hover: #245a97;
  --code-bg: #f3efe9;
  --shadow-color: rgba(27, 31, 35, 0.12);
  --gradient-primary:
    linear-gradient(
      135deg,
      #ff8a1d,
      #ffb565);
  --spacing-small: 0.5rem;
  --spacing-medium: 1rem;
  --spacing-large: 1.5rem;
  --spacing-xl: 2rem;
  --cv-box-padding: 0.5rem;
  --cv-box-margin-bottom: 0.75rem;
  --cv-box-background: var(--bg-secondary);
  --cv-box-border: 1px solid var(--border-subtle);
  --cv-box-border-radius: 6px;
  --cv-box-border-left: 3px solid var(--accent-orange);
  --cv-box-shadow: 0 1px 4px rgba(var(--accent-orange-rgb), 0.06);
  --cv-box-shadow-hover: 0 3px 8px rgba(var(--accent-orange-rgb), 0.1);
  --cv-box-transition: transform 0.2s ease, box-shadow 0.2s ease;
  --cv-box-hover-transform: translateY(-1px);
  --btn-padding: 0.5rem 1rem;
  --btn-border-radius: 4px;
  --btn-font-size: 0.9rem;
  --btn-font-weight: 500;
  --btn-transition: all 0.2s ease;
  --btn-hover-transform: translateY(-1px);
  --btn-hover-shadow: 0 2px 4px var(--shadow-color);
  --btn-primary-bg: var(--bg-secondary);
  --btn-primary-color: var(--link-color);
  --btn-primary-hover-bg: var(--accent-orange);
  --btn-primary-hover-color: var(--text-primary);
  --btn-secondary-bg: var(--bg-subtle);
  --btn-secondary-color: var(--text-muted);
  --btn-secondary-hover-bg: var(--bg-secondary);
  --btn-secondary-hover-color: var(--text-secondary);
  --topic-link-bg: var(--bg-secondary);
  --topic-link-color: var(--link-color);
  --topic-link-padding: 0.2rem 0.6rem;
  --topic-link-border-radius: 2rem;
  --topic-link-font-size: 0.7rem;
  --topic-link-border: 1px solid rgba(0, 0, 0, 0.05);
  --topic-link-hover-color: var(--text-primary);
  --topic-link-hover-bg: var(--accent-orange);
  --topic-link-hover-transform: translateY(-2px);
  --topic-link-hover-shadow: 0 3px 6px var(--shadow-color);
}
html.dark-mode {
  --accent-orange: #ff9000;
  --accent-orange-rgb:
    255,
    144,
    0;
  --bg-primary: #101820;
  --bg-secondary: #1b2631;
  --bg-subtle: #2c3e50;
  --text-primary: #f0f0f0;
  --text-secondary: #d1d5db;
  --text-muted: #9ca3af;
  --text-accent: #ffb74d;
  --border-subtle: #374151;
  --border-strong: #4b5563;
  --border-accent: #ff9000;
  --link-color: #ffb74d;
  --link-hover: #ffd180;
  --code-bg: #1c2833;
  --shadow-color: rgba(0, 0, 0, 0.4);
  --gradient-primary:
    linear-gradient(
      135deg,
      #ff7600,
      #ff9f00);
  --btn-primary-bg: var(--bg-secondary);
  --btn-primary-color: var(--link-color);
  --btn-primary-hover-bg: var(--accent-orange);
  --btn-primary-hover-color: var(--bg-primary);
  --btn-secondary-bg: var(--bg-subtle);
  --btn-secondary-color: var(--text-muted);
  --btn-secondary-hover-bg: var(--bg-secondary);
  --btn-secondary-hover-color: var(--text-secondary);
  --topic-link-bg: var(--bg-secondary);
  --topic-link-color: var(--link-color);
  --topic-link-border: 1px solid rgba(255, 255, 255, 0.1);
  --topic-link-hover-color: var(--bg-primary);
  --topic-link-hover-bg: var(--accent-orange);
}

/* src/css/base.css */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}
body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    Oxygen,
    Ubuntu,
    Cantarell,
    "Open Sans",
    "Helvetica Neue",
    sans-serif;
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
  margin: 0;
}
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding-left: 0;
  padding-right: 0;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  margin-bottom: 0.75rem;
  line-height: 1.2;
  font-weight: 600;
}
h1 {
  font-size: 2.5rem;
  margin-top: 1.5rem;
}
h2 {
  font-size: 1.8rem;
  margin-top: 1.5rem;
}
h3 {
  font-size: 1.4rem;
  margin-top: 1.25rem;
}
h4 {
  font-size: 1.2rem;
  margin-top: 1rem;
}
p {
  margin-bottom: 1.25rem;
}
a {
  color: var(--link-color);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover,
a:focus {
  color: var(--link-hover);
  text-decoration: underline;
}
.main-content {
  flex: 1 0 auto;
  width: 100%;
  padding-bottom: 1.5rem;
  box-sizing: border-box;
}
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--border-accent);
  outline-offset: 2px;
}
.video-container,
.slides-container {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  max-width: 100%;
  margin: 2rem 0;
}
.video-container iframe,
.slides-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
@media screen and (max-width: 1140px) {
  .container {
    padding-left: var(--spacing-medium);
    padding-right: var(--spacing-medium);
  }
}
@media screen and (max-width: 768px) {
  .container {
    padding-left: var(--spacing-large);
    padding-right: var(--spacing-large);
  }
}

/* src/css/layout.css */
.site-header {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 1rem;
  position: relative;
  background-image: var(--gradient-primary);
  color: var(--text-primary);
}
.site-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.1' fill-rule='evenodd'/%3E%3C/svg%3E");
  opacity: 0.5;
  z-index: 0;
}
.header-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 1;
}
.site-title {
  font-size: 1.5rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--text-primary);
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
}
.site-title:hover {
  text-decoration: none;
  text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.3);
}
.main-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 1.5rem;
}
.main-nav ul {
  display: flex;
  gap: 1rem;
  list-style: none;
  justify-content: center;
}
.main-nav a {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--text-primary);
  position: relative;
}
.main-nav a::after {
  content: "";
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--text-primary);
  transition: width 0.3s ease;
}
.main-nav a:hover::after {
  width: 100%;
}
.main-nav a.active {
  font-weight: 600;
}
.main-nav a.active::after {
  width: 100%;
  background-color: var(--text-primary);
}
.main-nav a:hover {
  color: var(--text-primary);
  text-decoration: none;
}
.main-nav a:hover::after {
  width: 100%;
}
.site-footer {
  flex-shrink: 0;
  position: sticky;
  bottom: 0;
  width: 100%;
  z-index: 100;
  padding: 0.5rem 0;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.875rem;
  background-color: var(--bg-secondary);
  height: 40px;
  display: flex;
  align-items: center;
}
.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: nowrap;
  gap: 1rem;
  position: relative;
  z-index: 1;
  height: 100%;
  width: 100%;
}
.footer-links {
  display: flex;
  gap: 1rem;
}
.footer-links a {
  color: var(--link-color);
  position: relative;
  padding: 0 0.25rem;
}
.footer-links a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--accent-orange);
  transition: width 0.3s;
}
.footer-links a:hover::after {
  width: 100%;
}
@media screen and (max-width: 768px) {
  .header-content {
    flex-direction: column;
    text-align: center;
  }
  .main-nav {
    width: 100%;
    margin: 0;
  }
  .main-nav ul {
    justify-content: space-around;
    flex-wrap: wrap;
    width: 100%;
    gap: 0.5rem;
  }
  .theme-toggle-item {
    margin-top: 0.5rem;
  }
  .footer-content {
    gap: 0.5rem;
    font-size: 0.8rem;
  }
  .copyright {
    font-size: 0.8rem;
  }
  .hero h1 {
    font-size: 2.5rem;
  }
}

/* src/css/components.css */
.btn {
  border: none;
  border-radius: var(--btn-border-radius);
  padding: var(--btn-padding);
  font-size: var(--btn-font-size);
  font-weight: var(--btn-font-weight);
  cursor: pointer;
  transition: var(--btn-transition);
  text-decoration: none;
  display: inline-block;
}
.btn:hover {
  transform: var(--btn-hover-transform);
  box-shadow: var(--btn-hover-shadow);
}
.btn-primary {
  background: var(--btn-primary-bg);
  color: var(--btn-primary-color);
}
.btn-primary:hover {
  background: var(--btn-primary-hover-bg);
  color: var(--btn-primary-hover-color);
}
.btn-secondary {
  background: var(--btn-secondary-bg);
  color: var(--btn-secondary-color);
}
.btn-secondary:hover {
  background: var(--btn-secondary-hover-bg);
  color: var(--btn-secondary-hover-color);
}
.btn-toggle {
  position: relative;
}
.btn-toggle.active {
  background: var(--accent-orange);
  color: var(--text-primary);
}
.btn-toggle-primary.active {
  background: var(--accent-orange);
  color: var(--text-primary);
}
.btn-toggle-secondary.active {
  background: var(--text-muted);
  color: var(--bg-primary);
}
.btn-submit {
  background: var(--accent-orange);
  color: var(--text-primary);
}
.topic-link {
  display: inline-block;
  background: var(--topic-link-bg);
  color: var(--topic-link-color);
  padding: var(--topic-link-padding);
  border-radius: var(--topic-link-border-radius);
  font-size: var(--topic-link-font-size);
  text-decoration: none;
  border: var(--topic-link-border);
  transition: var(--btn-transition);
  cursor: pointer;
}
.topic-link:hover {
  background: var(--topic-link-hover-bg);
  color: var(--topic-link-hover-color);
  transform: var(--topic-link-hover-transform);
  box-shadow: var(--topic-link-hover-shadow);
  text-decoration: none;
}
.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 0rem 1rem 0rem -2rem;
}
#theme-toggle {
  padding: 3px 8px;
  font-size: 0.8rem;
  box-shadow: 0 2px 5px var(--shadow-color);
}
html.light-mode #theme-toggle .toggle-text::after {
  content: " (Light)";
}
html.dark-mode #theme-toggle .toggle-text::after {
  content: " (Dark)";
}
html.light-mode .dark-icon,
html.dark-mode .light-icon {
  display: none;
}
html.light-mode .light-icon,
html.dark-mode .dark-icon {
  display: inline;
}
.post-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.post-topic {
  display: inline-block;
  background: var(--bg-secondary);
  color: var(--link-color);
  padding: 0.2rem 0.6rem;
  border-radius: 2rem;
  font-size: 0.7rem;
  border: 1px solid var(--shadow-color);
}
.topic-filtering {
  margin-bottom: 1.5rem;
}
.topic-filter-controls {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  max-width: 600px;
}
.active-topic-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.topic-count {
  opacity: 0.8;
  font-size: 0.7rem;
}
.no-results {
  text-align: center;
  padding: 2rem;
  background-color: var(--bg-secondary);
  border-radius: 4px;
}
details {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  margin-bottom: 1rem;
  padding: 0.5rem 1rem;
  box-shadow: 0 2px 4px var(--shadow-color);
}
details[open] {
  padding-bottom: 1rem;
}
summary {
  cursor: pointer;
  font-weight: 500;
  color: var(--link-color);
  padding: 0.5rem 0;
  position: relative;
  list-style: none;
  padding-left: 1.5rem;
}
summary::before {
  content: "\25b6";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%) rotate(0deg);
  transition: transform 0.2s ease-in-out;
  font-size: 0.8em;
  color: var(--text-accent);
}
details[open] > summary::before {
  transform: translateY(-50%) rotate(90deg);
}
summary::-webkit-details-marker {
  display: none;
}
summary:hover,
summary:focus {
  color: var(--link-hover);
}
details > *:not(summary) {
  margin-top: 0.75rem;
}
.hero-section {
  margin-bottom: 3rem;
  padding: 2rem 0;
  background: var(--hero-bg, transparent);
  border-radius: var(--border-radius);
}
.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}
.hero-content h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
  line-height: 1.2;
}
.hero-content p {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}
.hero-content p:last-child {
  margin-bottom: 0;
}
.news-section {
  margin-bottom: 2.5rem;
}
.news-section h2 {
  margin-bottom: 1rem;
  font-size: 1.5rem;
  color: var(--text-primary);
}
.news-items {
  display: grid;
  gap: 0.75rem;
}
.news-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: start;
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  border-left: 3px solid var(--accent-primary);
  transition: background-color 0.2s ease;
}
.news-item:hover {
  background: var(--bg-hover, var(--bg-secondary));
}
.news-content {
  flex: 1;
  line-height: 1.4;
  color: var(--text-primary);
}
.news-content p {
  margin: 0;
  font-size: 0.95rem;
}
.news-date {
  font-size: 0.85rem;
  color: var(--text-muted);
  white-space: nowrap;
  font-weight: 500;
  align-self: center;
}
@media (max-width: 768px) {
  .hero-section {
    padding: 1.5rem 0;
    margin-bottom: 2rem;
  }
  .hero-content h1 {
    font-size: 2rem;
  }
  .hero-content p {
    font-size: 1rem;
  }
  .news-item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
  .news-date {
    justify-self: end;
    font-size: 0.8rem;
  }
  .news-section {
    margin-bottom: 2rem;
  }
}
@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 1.75rem;
  }
  .news-item {
    padding: 0.6rem 0.8rem;
  }
  .news-content p {
    font-size: 0.9rem;
  }
}

/* src/css/links.css */
#links-app {
  position: relative;
}
#links-app .links-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  padding: 0.4rem 0.6rem;
  border-radius: 6px;
  margin: 0 0 0.8rem 0;
  box-shadow: 0 1px 3px var(--shadow-color);
}
#links-app .links-filters {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
}
#links-app .links-filters .filter-label {
  text-transform: uppercase;
  letter-spacing: 0.5px;
  opacity: 0.65;
  font-size: 0.6rem;
}
#links-app .links-filters select {
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 0.25rem 0.4rem;
  font-size: 0.7rem;
}
#links-app .links-filters select:focus {
  outline: 2px solid var(--accent-orange);
}
#links-app .links-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}
#links-app .links-list .link-item {
  background: var(--bg-secondary);
  padding: 0.6rem 0.75rem 0.65rem;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
  position: relative;
  line-height: 1.35;
  box-shadow: 0 1px 3px var(--shadow-color);
  transition: background 0.15s ease, transform 0.15s ease;
}
#links-app .links-list .link-item:hover {
  background: var(--bg-subtle);
  transform: translateY(-1px);
}
#links-app .links-list .link-item a {
  font-weight: 600;
  text-decoration: none;
  color: var(--link-color);
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
}
#links-app .links-list .link-item a .full-url {
  font-weight: 400;
  font-size: 0.7rem;
  opacity: 0.65;
  color: var(--text-muted);
  word-break: break-all;
}
#links-app .links-list .link-desc {
  margin-top: 0.25rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}
#links-app .links-list .link-meta {
  margin-top: 0.35rem;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}
#links-app .links-list .hidden {
  display: none !important;
}
#links-admin-btn {
  background: var(--bg-primary);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
  padding: 0.3rem 0.55rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  line-height: 1;
  transition: var(--btn-transition);
}
#links-admin-btn:hover {
  background: var(--bg-subtle);
  color: var(--text-secondary);
}
.links-admin-overlay {
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
  font-size: 0.9rem;
}
.links-admin-overlay h2 {
  margin-top: 0;
}
.links-admin-overlay table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.75rem;
}
.links-admin-overlay th,
.links-admin-overlay td {
  padding: 0.4rem 0.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.links-admin-overlay th {
  text-align: left;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  opacity: 0.8;
}
.links-admin-overlay button {
  margin-right: 0.4rem;
  margin-bottom: 0.3rem;
}
.links-admin-overlay form {
  margin-top: 1rem;
  background: rgba(255, 255, 255, 0.05);
  padding: 0.75rem 0.9rem 1rem;
  border-radius: 6px;
}
.links-admin-overlay form label {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  opacity: 0.85;
  margin-top: 0.65rem;
}
.links-admin-overlay form input,
.links-admin-overlay form textarea {
  width: 100%;
  background: rgba(0, 0, 0, 0.4);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  padding: 0.45rem 0.55rem;
  font-size: 0.8rem;
  font-family: inherit;
}
.links-admin-overlay form input:focus,
.links-admin-overlay form textarea:focus {
  outline: 2px solid var(--accent-orange);
}
.links-admin-overlay form button[type=submit] {
  margin-top: 0.9rem;
  background: var(--accent-orange);
  border: none;
  color: var(--text-primary);
  padding: 0.5rem 0.9rem;
  border-radius: 4px;
  font-weight: 600;
  cursor: pointer;
}
.links-admin-overlay form button[type=submit]:hover {
  filter: brightness(1.1);
}
#links-admin-close {
  margin-top: 1rem;
  background: var(--accent-orange);
  border: none;
  color: var(--text-primary);
  padding: 0.4rem 0.7rem;
  border-radius: 4px;
  font-weight: 600;
  cursor: pointer;
}
#links-admin-close:hover {
  filter: brightness(1.1);
}
@media (max-width: 640px) {
  #links-app .links-list {
    gap: 0.5rem;
  }
  #links-app .links-list .link-item {
    padding: 0.55rem 0.65rem;
  }
}

/* src/css/post.css */
.post-grid {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-medium);
}
.post-card {
  box-sizing: border-box;
  margin: 0.25rem;
  background-color: var(--bg-secondary);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 8px var(--shadow-color);
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative;
  border-top: 3px solid var(--border-accent);
}
.post-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 20px 20px 0;
  border-color: transparent var(--border-accent) transparent transparent;
  opacity: 0.8;
  transition: opacity 0.3s;
}
.post-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 20px var(--shadow-color);
}
.post-card:hover::before {
  opacity: 1;
}
.post-card-content {
  padding: 1rem;
  position: relative;
}
.post-card h3 {
  margin-top: 0;
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  position: relative;
  display: inline-block;
}
.post-card h3::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 40px;
  height: 2px;
  background-color: var(--accent-orange);
  opacity: 0.7;
  transition: width 0.3s;
}
.post-card:hover h3::after {
  width: 100%;
}
.post-excerpt {
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.4;
}
.post-meta {
  margin-bottom: 0.75rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.read-more {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.9rem;
}
.post-content {
  margin-bottom: 2rem;
}
.post-content h2,
.post-content h3,
.post-content h4 {
  margin-top: 2rem;
}
.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  margin: 1.5rem 0;
}
.post-content pre {
  background-color: var(--code-bg);
  padding: 1rem;
  border-radius: 4px;
  overflow-x: auto;
  margin-bottom: 1.5rem;
}
.post-content code {
  background-color: var(--code-bg);
  padding: 0.0em 0.0em;
  border-radius: 3px;
  font-family:
    "SFMono-Regular",
    Consolas,
    "Liberation Mono",
    Menlo,
    monospace;
  font-size: 0.9em;
}
.post-content blockquote {
  border-left: 4px solid var(--border-accent);
  padding-left: 1rem;
  margin-left: 0;
  font-style: italic;
  color: var(--text-muted);
}
.share-section {
  margin: 1.5rem 0 1.5rem 0;
  text-align: center;
}
.share-section h4 {
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
  color: var(--text-muted);
  font-weight: 500;
}
.share-buttons {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  transition:
    background 0.2s,
    border 0.2s,
    box-shadow 0.2s;
  box-shadow: 0 2px 6px var(--shadow-color);
  cursor: pointer;
  position: relative;
}
.share-btn img {
  width: 22px;
  height: 22px;
  display: block;
}
.share-btn:hover,
.share-btn:focus {
  background: var(--accent-orange);
  border-color: var(--border-accent);
  box-shadow: 0 4px 12px var(--shadow-color);
}
.share-btn:hover img,
.share-btn:focus img {
  filter: brightness(0) invert(1);
}
.copy-link-btn:active {
  background: var(--link-hover);
}
.post-nav {
  display: flex;
  justify-content: space-between;
  align-items: stretch;
  margin: 2rem 0 0 0;
  gap: 1rem;
}
.post-nav-prev,
.post-nav-next {
  flex: 1 1 0;
  text-align: left;
}
.post-nav-next {
  text-align: right;
}
.post-nav a {
  display: inline-flex;
  align-items: center;
  font-weight: 500;
  color: var(--link-color);
  background: var(--bg-secondary);
  border-radius: 6px;
  padding: 0.5rem 1rem;
  box-shadow: 0 2px 6px var(--shadow-color);
  border: 1px solid var(--border-subtle);
  transition:
    background 0.2s,
    color 0.2s,
    box-shadow 0.2s;
  text-decoration: none;
  gap: 0.5rem;
}
.post-nav a:hover,
.post-nav a:focus {
  background: var(--accent-orange);
  color: var(--text-primary);
  box-shadow: 0 4px 12px var(--shadow-color);
}
.nav-arrow {
  font-size: 1.2em;
  opacity: 0.7;
}
.post-topbar {
  display: flex;
  align-items: center;
  margin-bottom: 0.6rem;
  gap: 1rem;
  flex-wrap: nowrap;
}
.post-meta-top {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  flex-grow: 1;
  min-width: 0;
}
.post-author {
  font-style: normal;
  color: var(--text-muted);
}
.post-header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.language-switcher {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.lang-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all 0.2s ease;
  box-shadow: 0 2px 6px var(--shadow-color);
  text-decoration: none;
  cursor: pointer;
}
.lang-current {
  color: var(--text-accent);
  background: var(--text-muted);
  border-color: var(--border-subtle);
}
.lang-link {
  color: var(--text-muted);
}
.lang-link:hover {
  color: var(--text-accent);
  background: var(--bg-secondary);
  border-color: var(--border-accent);
}
.share-menu-container {
  position: relative;
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}
.share-menu {
  display: none;
  position: absolute;
  top: 50%;
  right: 100%;
  transform: translateY(-50%);
  margin-right: 0.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  box-shadow: 0 4px 16px var(--shadow-color);
  padding: 0.4rem 0.6rem;
  z-index: 10;
  min-width: 170px;
  white-space: nowrap;
  gap: 0.3rem;
  flex-direction: row;
  align-items: center;
}
.share-menu-open {
  display: flex !important;
}
.share-menu .share-btn {
  margin: 0 0.1rem;
}
noscript .share-menu {
  display: flex !important;
  position: static;
  box-shadow: none;
  border: none;
  padding: 0;
  background: none;
}
.share-menu img,
.share-menu-open img {
  filter: none;
  transition: filter 0.2s;
}
html.dark-mode .share-menu img,
html.dark-mode .share-menu-open img {
  filter: brightness(0) invert(1) sepia(0.1) saturate(2) hue-rotate(0deg);
}
.post-nav-with-share {
  display: flex;
  justify-content: space-between;
  align-items: stretch;
  margin: 2rem 0 0 0;
  gap: 1rem;
}
.post-nav-share {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
}
.post-nav-bottom-flex {
  display: flex;
  justify-content: space-between;
  align-items: stretch;
  gap: 1rem;
}
.post-nav-prev {
  flex: 1 1 0;
  text-align: left;
}
.post-nav-next {
  text-align: right;
}
.post-nav-share {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}
.post-topbar {
  display: flex;
  flex-wrap: nowrap;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}
.related-posts {
  margin-top: 2rem;
}
.related-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  gap: 1rem;
  flex-wrap: nowrap;
}
.related-header h3 {
  margin: 0;
  flex-grow: 1;
  min-width: 0;
}
.related-header .share-menu-container {
  flex-shrink: 0;
}
.post-topics-header {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0;
  margin-bottom: 0;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--border-subtle);
}
.post-content h1:first-of-type {
  margin-top: 0.25rem !important;
}
#featured-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-large, 1.5rem);
}
@media (min-width: 940px) {
  #featured-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 600px) {
  .share-buttons {
    gap: 0.5rem;
  }
  .post-nav {
    flex-direction: column;
    gap: 0.5rem;
  }
  .post-nav-prev,
  .post-nav-next {
    text-align: center;
  }
  .post-nav-with-share {
    flex-direction: column;
    gap: 0.5rem;
    align-items: stretch;
  }
  .post-nav-share {
    justify-content: center;
    margin: 0.5rem 0;
  }
  .post-topbar {
    gap: 0.5rem;
  }
  .lang-btn {
    width: 28px;
    height: 28px;
    font-size: 0.7rem;
  }
  .share-menu {
    min-width: 140px;
  }
}
@media (max-width: 700px) {
  .post-nav-bottom-flex {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
  }
  .post-nav-prev {
    text-align: left;
  }
  .post-nav-next {
    text-align: right;
  }
}
@media (max-width: 500px) {
  .post-topbar {
    flex-wrap: nowrap;
    gap: 0.5rem;
  }
  .post-meta-top {
    min-width: 0;
    flex: 1 1 auto;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
  .share-menu-container {
    flex: 0 0 auto;
    justify-content: flex-end;
  }
}

/* src/css/utilities.css */
.featured-posts,
.topics-section {
  margin-bottom: 2rem;
}
.topics-section h2 {
  margin-bottom: 1rem;
}
.view-all {
  text-align: center;
  margin: 1rem 0;
}
.loading-indicator {
  text-align: center;
  margin: 2rem 0;
  color: var(--text-muted);
}
#topic-filters {
  margin: 1rem 0;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* src/css/syntax.css */
:root {
  --syntax-background: #f8f8f8;
  --syntax-text: #333333;
  --syntax-comment: #998;
  --syntax-keyword: #d73a49;
  --syntax-string: #032f62;
  --syntax-number: #005cc5;
  --syntax-function: #6f42c1;
  --syntax-class: #22863a;
  --syntax-variable: #e36209;
  --syntax-operator: #d73a49;
  --syntax-punctuation: #24292e;
}
html.dark-mode {
  --syntax-background: #282c34;
  --syntax-text: #abb2bf;
  --syntax-comment: #7f848e;
  --syntax-keyword: #c678dd;
  --syntax-string: #98c379;
  --syntax-number: #d19a66;
  --syntax-function: #61afef;
  --syntax-class: #e5c07b;
  --syntax-variable: #e06c75;
  --syntax-operator: #56b6c2;
  --syntax-punctuation: #abb2bf;
}
.highlight {
  background-color: var(--syntax-background);
  color: var(--syntax-text);
  border-radius: 4px;
  margin: 1rem 0;
}
.highlight pre {
  padding: 1rem;
  overflow-x: auto;
  font-family:
    "SFMono-Regular",
    Consolas,
    "Liberation Mono",
    Menlo,
    monospace;
  font-size: 0.9rem;
  line-height: 1.5;
  tab-size: 4;
}
.highlight .c,
.highlight .c1,
.highlight .cm,
.highlight .cs {
  color: var(--syntax-comment);
  font-style: italic;
}
.highlight .k,
.highlight .kc,
.highlight .kd,
.highlight .kn,
.highlight .kp,
.highlight .kr,
.highlight .kt {
  color: var(--syntax-keyword);
  font-weight: 600;
}
.highlight .s,
.highlight .sb,
.highlight .sc,
.highlight .sd,
.highlight .s1,
.highlight .s2,
.highlight .se,
.highlight .sh,
.highlight .si,
.highlight .sx,
.highlight .sr,
.highlight .ss {
  color: var(--syntax-string);
}
.highlight .m,
.highlight .mf,
.highlight .mh,
.highlight .mi,
.highlight .mo,
.highlight .il {
  color: var(--syntax-number);
}
.highlight .na,
.highlight .nc,
.highlight .nd,
.highlight .ne,
.highlight .nf,
.highlight .nx {
  color: var(--syntax-function);
}
.highlight .nn,
.highlight .nt {
  color: var(--syntax-class);
}
.highlight .nb,
.highlight .bp,
.highlight .nv,
.highlight .vc,
.highlight .vg,
.highlight .vi {
  color: var(--syntax-variable);
}
.highlight .o,
.highlight .ow {
  color: var(--syntax-operator);
}
.highlight .p,
.highlight .cp {
  color: var(--syntax-punctuation);
}
.highlight .lineno {
  color: var(--syntax-comment);
  display: inline-block;
  padding: 0 0.5em;
  border-right: 1px solid #ddd;
  margin-right: 0.5em;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
html.dark-mode .highlight .lineno {
  border-right-color: #444;
}
.highlight.python .k {
  color: var(--syntax-keyword);
}
.highlight.python .nb {
  color: var(--syntax-function);
}
.highlight.javascript .nx {
  color: var(--syntax-text);
}
.highlight.javascript .kd {
  color: var(--syntax-keyword);
}
.highlight.css .k {
  color: var(--syntax-keyword);
}
.highlight.css .nt {
  color: var(--syntax-variable);
}
.highlight.html .nt {
  color: var(--syntax-keyword);
}
.highlight.html .na {
  color: var(--syntax-variable);
}
.highlight.html .s {
  color: var(--syntax-string);
}
code {
  border-radius: 3px;
  padding: 0.2em 0.4em;
}

/* src/css/main.css */
html.no-js #featured-grid,
html.no-js .blog-feed {
  display: none;
}
html.js #featured-initial,
html.js #blog-initial {
  display: none;
}