@font-face {
  font-family: 'Fraunces';
  src: url('/assets/fonts/Fraunces-VariableFont.woff2') format('woff2');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Fraunces';
  src: url('/assets/fonts/Fraunces-Italic-VariableFont.woff2') format('woff2');
  font-weight: 100 900;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: 'Source Sans 3';
  src: url('/assets/fonts/SourceSans3-VariableFont_wght.woff2') format('woff2');
  font-weight: 200 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Source Sans 3';
  src: url('/assets/fonts/SourceSans3-Italic-VariableFont_wght.woff2') format('woff2');
  font-weight: 200 900;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: 'JetBrains Mono';
  src: url('/assets/fonts/JetBrainsMono-VariableFont_wght.woff2') format('woff2');
  font-weight: 100 800;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'JetBrains Mono';
  src: url('/assets/fonts/JetBrainsMono-Italic-VariableFont_wght.woff2') format('woff2');
  font-weight: 100 800;
  font-style: italic;
  font-display: swap;
}

.icon {
  width: 1em;
  height: 1em;
  vertical-align: -0.125em;
  display: inline-block;
  flex-shrink: 0;
}

button .icon,
a .icon,
.btn .icon,
.nav-toggle .icon,
.theme-toggle .icon,
.scroll-top .icon,
.share-btn .icon,
.copy-btn .icon,
.copy-link-btn .icon {
  pointer-events: none;
}

.icon-sun,
.icon-moon {
  width: 1rem;
  height: 1rem;
}

:root {
  --font-heading: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  --color-bg: #0f0f0f;
  --color-bg-elevated: #1a1a1a;
  --color-bg-subtle: #141414;
  --color-text: #e8e8e8;
  --color-text-secondary: #a0a0a0;
  --color-text-muted: #888888;
  --color-border: #2a2a2a;
  --color-border-subtle: #1f1f1f;
  --color-accent: #c9a227;
  --color-accent-hover: #d4b23a;
  --color-accent-muted: rgba(201, 162, 39, 0.15);
  --color-link: #e8e8e8;
  --color-link-hover: var(--color-accent);
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --max-width: 1200px;
  --max-width-content: 720px;
  --header-height: 72px;
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
}

[data-theme="light"] {
  --color-bg: #fafafa;
  --color-bg-elevated: #ffffff;
  --color-bg-subtle: #f5f5f5;
  --color-text: #1a1a1a;
  --color-text-secondary: #4a4a4a;
  --color-text-muted: #595959;
  --color-border: #c8c8c8;
  --color-border-subtle: #e0e0e0;
  --color-accent: #8a6914;
  --color-accent-hover: #6b5010;
  --color-accent-muted: rgba(138, 105, 20, 0.12);
  --color-link: #1a1a1a;
  --color-link-hover: var(--color-accent);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s ease, color 0.3s ease;
}

::selection {
  background-color: var(--color-accent);
  color: var(--color-bg);
}

.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-subtle);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #444444;
}

pre::-webkit-scrollbar,
.highlight pre::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

pre::-webkit-scrollbar-track,
.highlight pre::-webkit-scrollbar-track {
  background: transparent;
}

pre::-webkit-scrollbar-thumb,
.highlight pre::-webkit-scrollbar-thumb {
  background: #333333;
  border-radius: 3px;
}

pre::-webkit-scrollbar-thumb:hover,
.highlight pre::-webkit-scrollbar-thumb:hover {
  background: #444444;
}

* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) var(--color-bg-subtle);
}

pre,
.highlight pre {
  scrollbar-width: thin;
  scrollbar-color: #333333 transparent;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-text);
  letter-spacing: 0.02em;
  scroll-margin-top: 100px;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: var(--space-lg);
}

h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  margin-bottom: var(--space-md);
  margin-top: var(--space-3xl);
}

h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
  margin-top: var(--space-xl);
  font-family: var(--font-body);
  font-weight: 600;
}

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-secondary);
}

a {
  color: var(--color-link);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-link-hover);
}

strong {
  font-weight: 600;
  color: var(--color-text);
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.content-narrow {
  max-width: var(--max-width-content);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border-subtle);
  z-index: 1000;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

[data-theme="light"] .site-header {
  background-color: rgba(250, 250, 250, 0.9);
}

:root:not([data-theme="light"]) .site-header {
  background-color: rgba(15, 15, 15, 0.9);
}

.header-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.site-logo:hover {
  color: var(--color-accent);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav-link {
  padding: var(--space-sm) var(--space-md);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-weight: 400;
  border-radius: 6px;
  transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-text);
  background-color: var(--color-bg-elevated);
}

.nav-link.active {
  font-weight: 500;
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background-color: var(--color-bg-elevated);
  color: var(--color-text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all var(--transition-fast);
  margin-left: var(--space-md);
}

.theme-toggle:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text);
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  display: none;
}

.theme-toggle .icon-moon {
  display: block;
}

[data-theme="light"] .theme-toggle .icon-moon {
  display: none;
}

[data-theme="light"] .theme-toggle .icon-sun {
  display: block;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background-color: var(--color-bg-elevated);
  color: var(--color-text-secondary);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.site-main {
  padding-top: calc(var(--header-height) + var(--space-3xl));
  padding-bottom: var(--space-4xl);
  min-height: 100vh;
  animation: pageLoad 0.6s ease-out;
}

@keyframes pageLoad {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero {
  padding: var(--space-4xl) 0;
  text-align: center;
}

.hero p {
  text-align: center;
}

.hero-content {
  max-width: 700px;
  margin: 0 auto;
}

.hero h1 {
  margin-bottom: var(--space-md);
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-accent);
  margin-bottom: var(--space-xl);
  font-weight: 400;
  letter-spacing: 0.05em;
}

.hero-description {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
  max-width: 540px;
  margin: 0 auto var(--space-xl);
}

.hero-links {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.hero-link:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text);
  background-color: var(--color-bg-elevated);
}

.hero-link i {
  font-size: 1rem;
}

.current-project {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  margin-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border-subtle);
}

.current-project-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.current-project-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md);
  background-color: var(--color-accent-muted);
  border-radius: 20px;
  font-size: 0.9rem;
  color: var(--color-accent);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.current-project-link:hover {
  background-color: var(--color-accent);
  color: var(--color-bg);
}

.current-project-link i {
  font-size: 0.75rem;
  transition: transform var(--transition-fast);
}

.current-project-link:hover i {
  transform: translateX(3px);
}

.section {
  padding: var(--space-3xl) 0;
}

.section-header {
  margin-bottom: var(--space-2xl);
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  margin-bottom: var(--space-sm);
  margin-top: 0;
  letter-spacing: 0.02em;
}

.section-subtitle {
  color: var(--color-text-muted);
  font-size: 1rem;
}

.section+.section {
  border-top: 1px solid var(--color-border-subtle);
}

.home-nav {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.home-nav-item {
  padding: var(--space-sm) var(--space-lg);
  padding-bottom: var(--space-md);
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.home-nav-item::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: var(--space-sm);
  right: var(--space-sm);
  height: 2px;
  background-color: var(--color-accent);
  transform: scaleX(0);
  transition: transform var(--transition-fast);
}

.home-nav-item:hover {
  color: var(--color-text-secondary);
}

.home-nav-item.active {
  color: var(--color-text);
  font-weight: 500;
}

.home-nav-item.active::after {
  transform: scaleX(1);
}

.home-section {
  display: none;
  animation: fadeIn 0.3s ease;
}

.home-section.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.about-content {
  max-width: var(--max-width-content);
  margin: 0 auto;
}

.about-intro {
  font-size: 1.125rem;
  line-height: 1.9;
  margin-bottom: var(--space-2xl);
}

.about-intro p {
  margin-bottom: var(--space-lg);
}

.about-block {
  margin-bottom: var(--space-3xl);
  padding: var(--space-xl);
  background-color: var(--color-bg-elevated);
  border-radius: 12px;
  border: 1px solid var(--color-border-subtle);
}

.about-block h3 {
  margin-top: 0;
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.about-block p {
  margin-bottom: var(--space-xs);
}

.about-block p:last-child {
  margin-bottom: 0;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-3xl);
}

.skill-category h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
  font-family: var(--font-body);
  font-weight: 600;
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border-subtle);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.skill-tag {
  padding: var(--space-xs) var(--space-md);
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.skill-tag:hover {
  border-color: var(--color-accent);
  color: var(--color-text);
}

.certifications-list {
  list-style: none;
}

.certifications-list li {
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border-subtle);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.certifications-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.cert-name {
  font-weight: 500;
  color: var(--color-text);
}

.cert-issuer {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
}

.card {
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border-subtle);
  border-radius: 12px;
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-base);
  opacity: 0;
  animation: cardReveal 0.5s ease forwards;
}

.card:nth-child(1) {
  animation-delay: 0.05s;
}

.card:nth-child(2) {
  animation-delay: 0.1s;
}

.card:nth-child(3) {
  animation-delay: 0.15s;
}

.card:nth-child(4) {
  animation-delay: 0.2s;
}

.card:nth-child(5) {
  animation-delay: 0.25s;
}

.card:nth-child(6) {
  animation-delay: 0.3s;
}

.card:nth-child(7) {
  animation-delay: 0.35s;
}

.card:nth-child(8) {
  animation-delay: 0.4s;
}

.card:nth-child(9) {
  animation-delay: 0.45s;
}

@keyframes cardReveal {
  from {
    opacity: 0;
    transform: translateY(16px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card-animate {
  animation: cardReveal 0.5s ease forwards;
}

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

.card-title {
  font-family: var(--font-body);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  margin-top: 0;
  color: var(--color-text);
}

.card-title a {
  color: inherit;
}

.card-title a:hover {
  color: var(--color-accent);
}

.card-meta {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.card-excerpt {
  margin-bottom: var(--space-lg);
  font-size: 0.95rem;
  line-height: 1.7;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  margin-top: auto;
}

.tag {
  padding: var(--space-xs) var(--space-sm);
  background-color: var(--color-bg-subtle);
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tag:hover,
.tag.active {
  background-color: var(--color-accent-muted);
  color: var(--color-accent);
}

a.tag {
  text-decoration: none;
}

.topic-link {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.topic-link:hover {
  color: var(--color-accent);
}

.card-footer {
  display: flex;
  gap: var(--space-md);
  margin-top: auto;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.card-link:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text);
  background-color: var(--color-bg-subtle);
}

.card-link.primary {
  background-color: var(--color-text);
  color: var(--color-bg);
  border-color: var(--color-text);
}

.card-link.primary:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

.card-link.disabled {
  color: var(--color-text-muted);
  cursor: default;
  opacity: 0.6;
}

.card-link.disabled:hover {
  border-color: var(--color-border);
  background-color: transparent;
}

.tag-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border-subtle);
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.tag-filters::-webkit-scrollbar {
  display: none;
}

.tag-filter {
  padding: var(--space-xs) var(--space-md);
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tag-filter:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text);
}

.tag-filter.active {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-bg);
}

.card.hidden {
  display: none;
}

.view-more {
  text-align: center;
  margin-top: var(--space-2xl);
}

.view-more-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.view-more-link:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text);
  background-color: var(--color-bg-elevated);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
}

.project-card {
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border-subtle);
  border-radius: 12px;
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-base);
  position: relative;
  height: 100%;
}

.project-card:hover {
  border-color: var(--color-accent);
}

.project-badge {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
}

.project-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

.guide-header-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  flex-wrap: wrap;
}

.project-title {
  font-family: var(--font-body);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  margin-top: 0;
  color: var(--color-text);
}

.project-title a {
  color: inherit;
}

.project-title a:hover {
  color: var(--color-accent);
}

.project-tech {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
  letter-spacing: 0.02em;
}

.project-excerpt {
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: var(--space-lg);
  color: var(--color-text-secondary);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: auto;
}

.project-footer {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.guides-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
}

.guide-card {
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border-subtle);
  border-left: 3px solid var(--color-text);
  border-radius: 0 12px 12px 0;
  padding: var(--space-xl);
  padding-left: var(--space-2xl);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.guide-card:hover {
  border-left-width: 5px;
  background-color: var(--color-bg-subtle);
}

.guide-content {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.guide-title {
  font-family: var(--font-body);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  margin-top: 0;
  color: var(--color-text);
}

.guide-title a {
  color: inherit;
}

.guide-title a:hover {
  color: var(--color-accent);
}

.guide-excerpt {
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: var(--space-md);
  color: var(--color-text-secondary);
}

.guide-topics {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  margin-top: auto;
}

.guide-topics span {
  color: var(--color-text-secondary);
}

.topic-sep {
  margin: 0 var(--space-sm);
  color: var(--color-text-muted);
}

.guide-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.9rem;
  color: var(--color-accent);
  font-weight: 500;
  transition: all var(--transition-fast);
  margin-top: auto;
}

.guide-link:hover {
  color: var(--color-accent-hover);
}

.guide-link i {
  font-size: 0.75rem;
  transition: transform var(--transition-fast);
}

.guide-link:hover i {
  transform: translateX(4px);
}

.blog-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
}

.blog-card {
  display: flex;
  flex-direction: column;
  padding: var(--space-xl);
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border-subtle);
  border-radius: 12px;
  transition: all var(--transition-base);
  height: 100%;
}

.blog-card:hover {
  border-color: var(--color-accent);
}

.blog-date {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.blog-month {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
}

.blog-day {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1;
  margin-top: var(--space-xs);
}

.blog-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-title {
  font-family: var(--font-body);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  margin-top: 0;
  color: var(--color-text);
}

.blog-title a {
  color: inherit;
}

.blog-title a:hover {
  color: var(--color-accent);
}

.blog-excerpt {
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: var(--space-md);
  color: var(--color-text-secondary);
}

.blog-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.blog-read-time {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.blog-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.9rem;
  color: var(--color-accent);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.blog-link:hover {
  color: var(--color-accent-hover);
}

.blog-link i {
  font-size: 0.75rem;
  transition: transform var(--transition-fast);
}

.blog-link:hover i {
  transform: translateX(4px);
}

@media (max-width: 600px) {
  .blog-card {
    flex-direction: column;
    gap: var(--space-md);
  }

  .blog-date {
    flex-direction: row;
    gap: var(--space-sm);
    border-right: none;
    border-bottom: 1px solid var(--color-border-subtle);
    padding-right: 0;
    padding-bottom: var(--space-md);
  }

  .blog-month {
    order: 2;
  }

  .blog-day {
    margin-top: 0;
  }
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  max-width: 800px;
  margin: 0 auto;
}

.contact-button {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border-subtle);
  border-radius: 10px;
  transition: all var(--transition-fast);
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  text-decoration: none;
}

.contact-button:hover {
  border-color: var(--color-accent);
  color: var(--color-text);
  background-color: var(--color-bg-subtle);
}

.contact-button i {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  width: 24px;
  text-align: center;
  transition: color var(--transition-fast);
}

.contact-button:hover i {
  color: var(--color-accent);
}

.page-header {
  max-width: var(--max-width-content);
  margin: 0 auto var(--space-3xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--color-border-subtle);
}

.page-header h1 {
  margin-bottom: var(--space-sm);
}

.page-header .meta {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.page-header-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

.back-link {
  max-width: var(--max-width-content);
  margin: 0 auto var(--space-xl);
}

.back-link a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-muted);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.back-link a:hover {
  color: var(--color-text);
}

.toc {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-subtle);
  border-radius: 8px;
  padding: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.toc-title {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: var(--space-md);
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.blog-content,
.guide-content,
.project-content {
  max-width: var(--max-width-content);
  margin: 0 auto;
}

.blog-content h2,
.guide-content h2,
.project-content h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  margin-top: var(--space-3xl);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-border-subtle);
  color: var(--color-text);
}

.blog-content h3,
.guide-content h3,
.project-content h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.blog-content h4,
.guide-content h4,
.project-content h4 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
  color: var(--color-text-secondary);
}

.blog-content p,
.guide-content p,
.project-content p {
  margin-bottom: var(--space-lg);
  line-height: 1.75;
  color: var(--color-text-secondary);
}

.blog-content ul,
.guide-content ul,
.project-content ul {
  margin: var(--space-lg) 0;
  padding-left: 0;
  list-style: none;
}

.blog-content ul li,
.guide-content ul li,
.project-content ul li {
  position: relative;
  padding-left: var(--space-xl);
  margin-bottom: var(--space-sm);
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.blog-content ul li::before,
.guide-content ul li::before,
.project-content ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  background-color: var(--color-accent);
  border-radius: 50%;
}

.blog-content ul ul li::before,
.guide-content ul ul li::before,
.project-content ul ul li::before {
  background-color: transparent;
  border: 1px solid var(--color-accent);
}

.blog-content ol,
.guide-content ol,
.project-content ol {
  margin: var(--space-lg) 0;
  padding-left: 0;
  list-style: none;
  counter-reset: ol-counter;
}

.blog-content ol li,
.guide-content ol li,
.project-content ol li {
  position: relative;
  padding-left: var(--space-xl);
  margin-bottom: var(--space-sm);
  line-height: 1.7;
  color: var(--color-text-secondary);
  counter-increment: ol-counter;
}

.blog-content ol li::before,
.guide-content ol li::before,
.project-content ol li::before {
  content: counter(ol-counter);
  position: absolute;
  left: 0;
  top: 0;
  font-size: 0.85em;
  font-weight: 600;
  color: var(--color-accent);
  font-family: var(--font-mono);
}

.blog-content li,
.guide-content li,
.project-content li {
  margin-bottom: var(--space-sm);
  line-height: 1.7;
}

.blog-content hr,
.guide-content hr,
.project-content hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg,
      transparent,
      var(--color-border),
      transparent);
  margin: var(--space-3xl) 0;
}

.blog-content blockquote,
.guide-content blockquote,
.project-content blockquote {
  margin: var(--space-xl) 0;
  padding: var(--space-lg) var(--space-xl);
  border-left: 3px solid var(--color-accent);
  background-color: var(--color-bg-elevated);
  border-radius: 0 8px 8px 0;
  font-style: italic;
  color: var(--color-text-secondary);
}

.blog-content blockquote p:last-child,
.guide-content blockquote p:last-child,
.project-content blockquote p:last-child {
  margin-bottom: 0;
}

.blog-content blockquote strong,
.guide-content blockquote strong,
.project-content blockquote strong {
  color: var(--color-accent);
  font-style: normal;
}

.blog-content pre,
.guide-content pre,
.project-content pre {
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--space-lg);
  overflow-x: auto;
  margin: var(--space-xl) 0;
  font-size: 0.875rem;
}

.blog-content code,
.guide-content code,
.project-content code {
  font-family: var(--font-mono);
}

.blog-content p code,
.blog-content li code,
.blog-content td code,
.guide-content p code,
.guide-content li code,
.guide-content td code,
.project-content p code,
.project-content li code,
.project-content td code {
  background-color: var(--color-bg-elevated);
  padding: 0.2em 0.5em;
  border-radius: 4px;
  font-size: 0.85em;
  border: 1px solid var(--color-border-subtle);
  color: var(--color-accent);
}

.blog-content a,
.guide-content a,
.project-content a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast);
}

.blog-content a:hover,
.guide-content a:hover,
.project-content a:hover {
  border-bottom-color: var(--color-accent);
}

.blog-content strong,
.guide-content strong,
.project-content strong {
  font-weight: 600;
  color: var(--color-text);
}

.blog-content img,
.guide-content img,
.project-content img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: var(--space-xl) auto;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.blog-content table,
.guide-content table,
.project-content table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: var(--space-xl) 0;
  font-size: 0.9rem;
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
}

.blog-content thead,
.guide-content thead,
.project-content thead {
  background-color: var(--color-bg-subtle);
}

.blog-content th,
.guide-content th,
.project-content th {
  padding: var(--space-md) var(--space-lg);
  text-align: left;
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  border-bottom: 2px solid var(--color-border);
}

.blog-content td,
.guide-content td,
.project-content td {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border-subtle);
  color: var(--color-text-secondary);
  vertical-align: top;
}

.blog-content tbody tr,
.guide-content tbody tr,
.project-content tbody tr {
  transition: background-color var(--transition-fast);
}

.blog-content tbody tr:hover,
.guide-content tbody tr:hover,
.project-content tbody tr:hover {
  background-color: var(--color-bg-subtle);
}

.blog-content tr:last-child td,
.guide-content tr:last-child td,
.project-content tr:last-child td {
  border-bottom: none;
}

.blog-content td:first-child,
.guide-content td:first-child,
.project-content td:first-child {
  font-weight: 500;
  color: var(--color-text);
}

.table-wrapper {
  overflow-x: auto;
  margin: var(--space-xl) 0;
  border-radius: 8px;
}

.table-wrapper table {
  margin: 0;
}

@media (max-width: 768px) {

  .blog-content table,
  .guide-content table,
  .project-content table {
    font-size: 0.8rem;
  }

  .blog-content th,
  .guide-content th,
  .project-content th,
  .blog-content td,
  .guide-content td,
  .project-content td {
    padding: var(--space-sm) var(--space-md);
  }

  .blog-content pre,
  .guide-content pre,
  .project-content pre {
    border-radius: 0;
    margin-left: calc(-1 * var(--space-lg));
    margin-right: calc(-1 * var(--space-lg));
  }
}

[data-theme="light"] .blog-content img,
[data-theme="light"] .guide-content img,
[data-theme="light"] .project-content img {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .blog-content blockquote,
[data-theme="light"] .guide-content blockquote,
[data-theme="light"] .project-content blockquote {
  background-color: #f6f8fa;
}

.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-bg);
  border: none;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  transform: translateY(-3px);
}

.site-footer {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--color-border-subtle);
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer-links a {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-content {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

@media (max-width: 1024px) {
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .skills-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
}

@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .card {
    opacity: 1;
    animation: none;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .container {
    padding: 0 var(--space-lg);
  }

  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md);
    flex-direction: column;
    gap: var(--space-xs);
  }

  .site-nav.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-link {
    width: 100%;
    padding: var(--space-md);
    border-radius: 8px;
    transition: background-color var(--transition-fast), color var(--transition-fast);
  }

  .nav-link.active {
    background-color: var(--color-accent-muted);
    color: var(--color-accent);
    font-weight: 500;
  }

  .theme-toggle {
    margin-left: var(--space-sm);
  }

  .hero {
    padding: var(--space-2xl) 0;
  }

  .hero-links {
    flex-direction: column;
    align-items: center;
  }

  .hero-link {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

  .home-nav {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .home-nav::-webkit-scrollbar {
    display: none;
  }

  .home-nav-item {
    white-space: nowrap;
    flex-shrink: 0;
  }

  .cards-grid {
    grid-template-columns: 1fr;
  }

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: var(--space-2xl) 0;
  }

  .scroll-top {
    bottom: 1.5rem;
    right: 1.5rem;
    width: 40px;
    height: 40px;
  }

  .tag-filters {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: var(--space-md);
    -webkit-overflow-scrolling: touch;
  }

  .tag-filter {
    flex-shrink: 0;
  }
}

.error-page {
  min-height: calc(100vh - var(--header-height) - 200px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
}

.error-content {
  max-width: 480px;
}

.error-code {
  font-family: var(--font-mono);
  font-size: clamp(4rem, 15vw, 8rem);
  font-weight: 500;
  color: var(--color-accent);
  line-height: 1;
  display: block;
  margin-bottom: var(--space-lg);
  opacity: 0.9;
}

.error-page h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 4vw, 1.75rem);
  margin-bottom: var(--space-md);
}

.error-page p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

.error-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
}

.error-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.error-link:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text);
  background-color: var(--color-bg-elevated);
  transform: translateY(-2px);
}

.error-link.primary {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-bg);
}

.error-link.primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.error-hint {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
}

.error-hint i {
  color: var(--color-accent);
}

.reading-progress {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--color-accent);
  z-index: 999;
  transition: width 50ms linear;
}

.code-block-wrapper {
  position: relative;
}

.copy-btn {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  padding: var(--space-xs) var(--space-sm);
  background-color: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  cursor: pointer;
  opacity: 0;
  transition: all var(--transition-fast);
}

.code-block-wrapper:hover .copy-btn {
  opacity: 1;
}

.copy-btn:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-bg);
}

.copy-btn.copied {
  background-color: #22863a;
  border-color: #22863a;
  color: white;
}

.code-block-wrapper {
  margin: var(--space-lg) 0;
}

.code-block-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) var(--space-md);
  background-color: #1e1e1e;
  border: 1px solid var(--color-border);
  border-bottom: none;
  border-radius: 8px 8px 0 0;
}

.code-block-wrapper pre {
  margin: 0 !important;
  border-radius: 0 0 8px 8px !important;
  border-top: none !important;
}

.code-block-wrapper .highlight {
  margin: 0;
  border-radius: 0 0 8px 8px;
}

.code-block-wrapper .highlight pre {
  border-radius: 0 0 8px 8px;
  margin: 0;
}

.code-lang-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #8b949e;
}

.code-block-header .copy-btn {
  position: static;
  opacity: 1;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.75rem;
}

.highlight.language-console pre,
.highlight.language-terminal pre,
.highlight.language-text pre,
pre.terminal,
.code-block-wrapper[data-lang="console"] pre,
.code-block-wrapper[data-lang="terminal"] pre,
.code-block-wrapper[data-lang="text"] pre,
.terminal-block pre {
  background-color: #121212 !important;
  color: #b8b8b8;
}

.terminal-block .code-block-header {
  background-color: #1a1a1a;
  border-color: var(--color-border);
}

.terminal-block .code-lang-label {
  color: var(--color-accent);
}

.highlight .gp {
  color: var(--color-accent);
  font-weight: 600;
}

.highlight .go {
  color: #888888;
}

.highlight .gt {
  color: #c97a7a;
}

.highlight .gs {
  font-weight: bold;
  color: #d4d4d4;
}

.highlight .ge {
  font-style: italic;
  color: #b8b8b8;
}

.highlight .nb {
  color: #d4b896;
}

.highlight .nf {
  color: #c9a227;
}

.terminal-prompt {
  color: var(--color-accent);
}

.terminal-prompt .user,
.terminal-prompt .host {
  color: var(--color-accent);
  font-weight: 600;
}

.terminal-prompt .path {
  color: #a0a0a0;
  font-weight: 500;
}

.terminal-prompt .symbol {
  color: #666666;
}

.terminal-cmd {
  color: #d4d4d4;
  font-weight: 500;
}

.terminal-output {
  color: #888888;
}

.terminal-error {
  color: #c97a7a;
}

.terminal-success {
  color: #8fa876;
}

.terminal-warning {
  color: var(--color-accent);
}

.terminal-info {
  color: #a0a0a0;
}

.terminal-dir {
  color: #a0a0a0;
  font-weight: 600;
}

.terminal-exec {
  color: #8fa876;
}

.terminal-link {
  color: #9a9a9a;
}

.terminal-archive {
  color: #c97a7a;
}

.terminal-root {
  color: #c97a7a;
  font-weight: 600;
}

.terminal-ip {
  color: #d4b896;
}

.terminal-perm {
  color: #8fa876;
}

[data-theme="light"] .highlight pre,
[data-theme="light"] pre {
  background-color: #ffffff !important;
  color: #1a1a1a;
  border: 1px solid #e0e0e0;
}

[data-theme="light"] .highlight {
  background-color: #ffffff;
}

[data-theme="light"] .terminal-block pre,
[data-theme="light"] .highlight.language-console pre,
[data-theme="light"] .highlight.language-terminal pre,
[data-theme="light"] .highlight.language-text pre,
[data-theme="light"] pre.terminal {
  background-color: #1a1a1a !important;
  color: #d4d4d4;
  border: 1px solid #333;
}

[data-theme="light"] .terminal-block .code-block-header {
  background-color: #252525;
  border-color: #333;
}

[data-theme="light"] .terminal-block .code-lang-label {
  color: #c9a227;
}

[data-theme="light"] .code-block-header {
  background-color: #f5f5f5;
  border-color: #e0e0e0;
}

[data-theme="light"] .code-lang-label {
  color: #555555;
}

[data-theme="light"] .copy-btn {
  color: #555555;
  border-color: #d0d0d0;
  background-color: #ffffff;
}

[data-theme="light"] .copy-btn:hover {
  background-color: #f0f0f0;
  color: #333333;
}

[data-theme="light"] pre::-webkit-scrollbar-thumb,
[data-theme="light"] .highlight pre::-webkit-scrollbar-thumb {
  background: #d0d0d0;
}

[data-theme="light"] pre::-webkit-scrollbar-thumb:hover,
[data-theme="light"] .highlight pre::-webkit-scrollbar-thumb:hover {
  background: #b0b0b0;
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.animate-on-scroll.animated {
  opacity: 1;
  transform: translateY(0);
}

.projects-grid .animate-on-scroll:nth-child(1) {
  transition-delay: 0s;
}

.projects-grid .animate-on-scroll:nth-child(2) {
  transition-delay: 0.1s;
}

.projects-grid .animate-on-scroll:nth-child(3) {
  transition-delay: 0.2s;
}

.guides-list .animate-on-scroll:nth-child(1) {
  transition-delay: 0s;
}

.guides-list .animate-on-scroll:nth-child(2) {
  transition-delay: 0.1s;
}

.guides-list .animate-on-scroll:nth-child(3) {
  transition-delay: 0.2s;
}

@media (prefers-reduced-motion: reduce) {
  .animate-on-scroll {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

.difficulty-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  border-radius: 4px;
  font-size: 0.65rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background-color: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.difficulty-badge.beginner {
  color: var(--color-text-secondary);
}

.difficulty-badge.intermediate {
  color: var(--color-accent);
  border-color: rgba(201, 162, 39, 0.3);
}

.difficulty-badge.advanced {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background-color: var(--color-accent-muted);
}

.featured-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  border-radius: 4px;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background-color: var(--color-accent-muted);
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
}

.featured-badge i {
  font-size: 0.6rem;
}

.guide-badges,
.project-badges {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-sm);
}

[data-theme="light"] .featured-badge {
  color: #8a6914;
  border-color: #c9a227;
  background-color: rgba(138, 105, 20, 0.1);
}

[data-theme="light"] .difficulty-badge {
  border-color: #d0d0d0;
  color: #666666;
}

[data-theme="light"] .difficulty-badge.beginner {
  color: #555555;
  border-color: #bbbbbb;
}

[data-theme="light"] .difficulty-badge.intermediate {
  color: #7a5a10;
  border-color: #c9a227;
  background-color: rgba(138, 105, 20, 0.08);
}

[data-theme="light"] .difficulty-badge.advanced {
  color: #5a4510;
  border-color: #8a6914;
  background-color: rgba(138, 105, 20, 0.15);
  font-weight: 600;
}

.terminal-header {
  background-color: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: 8px 8px 0 0;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  margin-bottom: 0;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.terminal-header::before {
  content: '';
  display: inline-flex;
  gap: 6px;
}

.terminal-dots {
  display: flex;
  gap: 6px;
  margin-right: var(--space-sm);
}

.terminal-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.terminal-dots span:nth-child(1) {
  background-color: #ff5f56;
}

.terminal-dots span:nth-child(2) {
  background-color: #ffbd2e;
}

.terminal-dots span:nth-child(3) {
  background-color: #27ca40;
}

.terminal-title {
  color: var(--color-text-secondary);
  flex: 1;
  text-align: center;
}

.terminal-prompt {
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 8px 8px;
  padding: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.terminal-prompt .prompt-user {
  color: #2ea043;
}

.terminal-prompt .prompt-path {
  color: #58a6ff;
}

.terminal-prompt .prompt-symbol {
  color: var(--color-text-muted);
}

.terminal-prompt .prompt-command {
  color: var(--color-text);
}

.card-terminal {
  margin-top: auto;
  margin-bottom: var(--space-md);
  border-radius: 6px;
  overflow: hidden;
  font-size: 0.7rem;
}

.card-terminal .terminal-header {
  padding: var(--space-xs) var(--space-sm);
  border-radius: 6px 6px 0 0;
}

.card-terminal .terminal-dots span {
  width: 8px;
  height: 8px;
}

.card-terminal .terminal-prompt {
  padding: var(--space-sm);
  border-radius: 0 0 6px 6px;
}

.article-nav {
  display: flex;
  justify-content: space-between;
  gap: var(--space-lg);
  margin-top: var(--space-4xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-border-subtle);
  max-width: var(--max-width-content);
  margin-left: auto;
  margin-right: auto;
}

.article-nav-link {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding: var(--space-lg);
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border-subtle);
  border-radius: 8px;
  flex: 1;
  max-width: 45%;
  transition: all var(--transition-fast);
}

.article-nav-link:hover {
  border-color: var(--color-accent);
  background-color: var(--color-bg-subtle);
}

.article-nav-link.next {
  text-align: right;
  margin-left: auto;
}

.article-nav-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.article-nav-title {
  font-weight: 500;
  color: var(--color-text);
  font-size: 0.95rem;
}

.article-nav-link:hover .article-nav-title {
  color: var(--color-accent);
}

@media (max-width: 600px) {
  .article-nav {
    flex-direction: column;
  }

  .article-nav-link {
    max-width: 100%;
  }

  .article-nav-link.next {
    text-align: left;
  }
}

.blog-content h2,
.guide-content h2,
.project-content h2,
.blog-content h3,
.guide-content h3,
.project-content h3 {
  position: relative;
}

.anchor-link {
  position: absolute;
  left: -1.5rem;
  opacity: 0;
  color: var(--color-text-muted);
  font-size: 0.9em;
  transition: opacity var(--transition-fast);
  text-decoration: none;
}

.blog-content h2:hover .anchor-link,
.guide-content h2:hover .anchor-link,
.project-content h2:hover .anchor-link,
.blog-content h3:hover .anchor-link,
.guide-content h3:hover .anchor-link,
.project-content h3:hover .anchor-link {
  opacity: 1;
}

.anchor-link:hover {
  color: var(--color-accent);
}

.search-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: 2000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 15vh;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.search-overlay.active {
  opacity: 1;
  visibility: visible;
}

.search-modal {
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  width: 100%;
  max-width: 600px;
  max-height: 70vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
  transform: translateY(-20px) scale(0.95);
  transition: transform var(--transition-fast);
}

.search-overlay.active .search-modal {
  transform: translateY(0) scale(1);
}

.search-input-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  border-bottom: 1px solid var(--color-border-subtle);
}

.search-input-wrapper i {
  color: var(--color-text-muted);
  font-size: 1.1rem;
}

.search-input {
  flex: 1;
  background: transparent;
  border: none;
  font-size: 1.1rem;
  color: var(--color-text);
  font-family: var(--font-body);
  outline: none;
}

.search-input::placeholder {
  color: var(--color-text-muted);
}

.search-shortcut {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.search-shortcut kbd {
  padding: 2px 6px;
  background-color: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
}

.search-results {
  overflow-y: auto;
  max-height: 400px;
}

.search-result {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.search-result:hover,
.search-result.selected {
  background-color: var(--color-bg-subtle);
}

.search-result-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-accent-muted);
  border-radius: 6px;
  color: var(--color-accent);
  font-size: 0.9rem;
  flex-shrink: 0;
}

.search-result-content {
  flex: 1;
  min-width: 0;
}

.search-result-title {
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.search-result-type {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.search-empty {
  padding: var(--space-2xl);
  text-align: center;
  color: var(--color-text-muted);
}

.search-footer {
  padding: var(--space-sm) var(--space-lg);
  border-top: 1px solid var(--color-border-subtle);
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.featured-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 2px var(--space-sm);
  background-color: var(--color-accent-muted);
  border-radius: 4px;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
}

.featured-badge i {
  font-size: 0.6rem;
}

.card-read-time {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.card-read-time i {
  font-size: 0.75rem;
}

.keyboard-hint {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: none;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  z-index: 100;
}

.keyboard-hint kbd {
  padding: 2px 6px;
  background-color: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

@media (min-width: 769px) {
  .keyboard-hint {
    display: flex;
  }
}

.line-numbers pre {
  counter-reset: line;
}

.line-numbers pre code {
  display: block;
}

.line-numbers pre code .line::before {
  counter-increment: line;
  content: counter(line);
  display: inline-block;
  width: 2em;
  margin-right: 1em;
  text-align: right;
  color: var(--color-text-muted);
  border-right: 1px solid var(--color-border-subtle);
  padding-right: 0.5em;
  user-select: none;
}

@media print {

  *,
  *::before,
  *::after {
    background: white !important;
    color: black !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }

  body {
    font-size: 12pt;
    line-height: 1.5;
  }

  .site-header,
  .theme-toggle,
  .site-footer,
  .scroll-top,
  .toc,
  .reading-progress,
  .copy-btn,
  .hero,
  .home-nav,
  .current-project {
    display: none !important;
  }

  .site-main {
    padding-top: 0;
  }

  .blog-content,
  .guide-content,
  .project-content {
    max-width: 100%;
  }

  a {
    text-decoration: underline;
  }

  a[href^="http"]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
  }

  pre {
    border: 1px solid #ccc !important;
    page-break-inside: avoid;
    white-space: pre-wrap;
    word-wrap: break-word;
  }

  img {
    max-width: 100% !important;
    page-break-inside: avoid;
  }

  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    page-break-after: avoid;
    page-break-inside: avoid;
  }

  table {
    border-collapse: collapse !important;
  }

  th,
  td {
    border: 1px solid #ccc !important;
  }

  .card {
    opacity: 1;
    animation: none;
    border: 1px solid #ccc !important;
    page-break-inside: avoid;
  }

  @page {
    margin: 2cm;
  }
}

.toc {
  margin-bottom: var(--space-xl);
  padding: var(--space-md) var(--space-lg);
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 8px;
}

.toc-title {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.toc-item {
  margin-bottom: var(--space-xs);
}

.toc-item.toc-h3 {
  padding-left: var(--space-md);
}

.toc-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition-fast);
  display: block;
  padding: var(--space-xs) 0;
}

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

.toc-number {
  color: var(--color-accent);
  font-weight: 500;
  margin-right: 0.3em;
}

.share-buttons {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.share-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.share-btn:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background-color: var(--color-accent-muted);
}

.share-btn i {
  font-size: 0.9rem;
}

[data-theme="light"] .share-btn {
  background-color: #ffffff;
  border-color: #d0d0d0;
}

[data-theme="light"] .share-btn:hover {
  border-color: var(--color-accent);
  background-color: rgba(138, 105, 20, 0.1);
}

.site-footer {
  margin-top: var(--space-4xl);
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--color-border-subtle);
  background-color: var(--color-bg-subtle);
  text-align: center;
}

.site-footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.footer-tagline {
  font-family: var(--font-body);
  font-size: 1rem;
  font-style: italic;
  color: var(--color-text-secondary);
  letter-spacing: 0.02em;
}

.footer-accent {
  color: var(--color-accent);
  font-weight: 500;
  margin-right: var(--space-xs);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background-color: var(--color-accent-muted);
  transform: translateY(-3px);
}

.footer-content {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin: 0;
}

[data-theme="light"] .site-footer {
  background-color: #f5f5f5;
}

[data-theme="light"] .footer-links a {
  background-color: #ffffff;
  border-color: #d0d0d0;
}

[data-theme="light"] .footer-links a:hover {
  border-color: var(--color-accent);
  background-color: rgba(138, 105, 20, 0.1);
}