:root {
  --bg-color: #ffffff;
  --text-color: #222222;
  --heading-color: #111111;
  --accent-color: #512bd4;
  --accent-color-dark: #9061f9;
  --accent-color-light: #d6ccff;
  --font-stack: 'Inter', system-ui, sans-serif;
  --bg-gradient-start: #e4e0ff;
  --bg-gradient-end: #f5e9ff;
  --card-bg: #f6f8ff;
  --card-border: #e1e4f0;
  --card-bg-dark: #1e1e1e;
  --card-border-dark: #333;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-color: #121212;
    --text-color: #e5e5e5;
    --heading-color: #f5f5f5;
    --accent-color: var(--accent-color-dark);
    --accent-color-light: #a48cff;
    --bg-gradient-start: #1b1b2d;
    --bg-gradient-end: #251b36;
    --card-bg-dark: #1e1e1e;
    --card-border-dark: #333;
  }
}

[data-theme='dark'] {
  --bg-color: #121212;
  --text-color: #e5e5e5;
  --heading-color: #f5f5f5;
  --accent-color: var(--accent-color-dark);
  --accent-color-light: #a48cff;
  --bg-gradient-start: #1b1b2d;
  --bg-gradient-end: #251b36;
  --card-bg-dark: #1e1e1e;
  --card-border-dark: #333;
}

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

[data-theme='light'] {
  --bg-color: #ffffff;
  --text-color: #222222;
  --accent-color: #512bd4;
  --bg-gradient-start: #e4e0ff;
  --bg-gradient-end: #f5e9ff;
}

body {
  font-family: var(--font-stack);
  margin: 0;
  background: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
}

body.home {
  font-family: Georgia, 'Times New Roman', serif;
}

.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;
}

header,
footer {
  background-color: var(--accent-color);
  color: white;
  padding: 1rem;
}

footer {
  background-image: repeating-linear-gradient(
    45deg,
    rgba(255, 255, 255, 0.1) 0,
    rgba(255, 255, 255, 0.1) 8px,
    transparent 8px,
    transparent 16px
  );
}

header a,
footer a {
  color: white;
}

main {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: 1rem;
  flex: 1;
  min-width: 0;
}

nav.site-nav {
  display: flex;
  align-items: center;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
}

.site-brand {
  display: inline-block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-right: 1rem;
  padding: 0.25rem 0.5rem;
  border: 1px solid white;
  border-radius: 4px;
  background-color: rgba(255, 255, 255, 0.1);
  text-decoration: none;
  color: white;
  white-space: nowrap;
}

nav.site-nav .nav-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 1rem;
}

pre,
pre[class*="language-"] {
  background-color: #f5f5f5 !important;
  padding: 0.5rem;
  overflow-x: auto;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  border-radius: 6px;
  position: relative;
  font-size: 0.9rem !important;
  line-height: 1.2 !important;
}

.code-block {
  position: relative;
}

.code-block pre {
  margin: 0;
}

pre code {
  font-size: 0.9rem !important;
  line-height: 1.2 !important;
  background-color: transparent;
  padding: 0;
  border-radius: 0;
}

.copy-code {
  position: absolute;
  top: 0.25rem;
  right: 0.25rem;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 4px;
  background: var(--accent-color);
  color: #fff;
  cursor: pointer;
  font-size: 0.75rem;
}

.copy-code:active {
  transform: scale(0.95);
}

/* Inline code styling */
code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  background-color: #f5f5f5;
  padding: 0.1em 0.3em;
  border-radius: 4px;
  overflow-wrap: anywhere;
  word-break: break-word;
  font-size: 0.9rem;
  line-height: 1.2;
}

[data-theme='dark'] code {
  background-color: #2d2d2d;
}

pre[class*="language-"]::before {
  content: attr(data-language);
  position: absolute;
  top: 0;
  left: 0;
  background: var(--accent-color);
  color: white;
  text-shadow: none;
  padding: 0 0.5rem;
  font-size: 0.75rem;
  border-bottom-right-radius: 4px;
  text-transform: uppercase;
}

[data-theme='dark'] pre,
[data-theme='dark'] pre[class*="language-"] {
  background-color: #2d2d2d !important;
}

[data-theme='dark'] pre[class*="language-"]::before {
  background: var(--accent-color-dark);
}

.token.operator {
  background: none !important;
}

.theme-toggle {
  margin-left: auto;
  background: none;
  border: 1px solid white;
  color: white;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  cursor: pointer;
}

.theme-select {
  margin-left: 0.5rem;
  background-color: var(--accent-color);
  border: 1px solid white;
  border-radius: 4px;
  color: transparent;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='white' d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  appearance: none;
  width: 1.5rem;
  height: 1.5rem;
  padding: 0;
  cursor: pointer;
}

.theme-select option {
  color: var(--text-color);
}

article.post {
  background: var(--bg-color);
  padding: 1.25rem;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
  margin: 0 auto;
  line-height: 1.5;
  font-size: 1rem;
  max-width: 65ch;
  font-family: Georgia, 'Times New Roman', serif;
}

article.post p,
article.post li,
article.post blockquote {
  letter-spacing: -0.015em;
}

article.post p {
  margin: 0 0 1.25rem;
}

article.post h1 {
  margin-top: 0;
}

.post-header h1 {
  margin: 0;
  position: relative;
  z-index: 1;
}

article.post h2,
article.post h3 {
  color: var(--accent-color);
  margin-top: 2rem;
  margin-bottom: 1rem;
  line-height: 1.3;
}

article.post ul,
article.post ol {
  margin: 0 0 1.25rem 1.5rem;
  padding-left: 1.25rem;
}

article.post li {
  margin-bottom: 0.75rem;
}

.post-hero-wrapper {
  position: relative;
  aspect-ratio: 2 / 1;
  background-color: var(--card-border);
  border-radius: 8px;
  margin-bottom: 1rem;
  overflow: hidden;
}

[data-theme='dark'] .post-hero-wrapper {
  background-color: var(--card-border-dark);
}

.post-hero-wrapper.loading::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255,255,255,0), rgba(255,255,255,0.6), rgba(255,255,255,0));
  transform: translateX(-100%);
  animation: shimmer 1.5s infinite;
}

.post-hero {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}


[data-theme] body.home h1,
[data-theme] body.home h2,
[data-theme] article.post h1,
[data-theme] article.post h2,
[data-theme] article.post h3 {
  text-shadow: none;
}

[data-theme='dark'] body.home h1,
[data-theme='dark'] body.home h2,
[data-theme='dark'] article.post h1,
[data-theme='dark'] article.post h2,
[data-theme='dark'] article.post h3 {
  text-shadow: none;
}

.post-header {
  position: relative;
  overflow: hidden;
  margin-bottom: 1rem;
  padding: 1rem;
  border-radius: 8px;
  border: 1px solid var(--accent-color);
  background-color: rgba(255, 255, 255, 0.6);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  color: var(--text-color);
}

[data-theme='dark'] .post-header {
  background-color: rgba(0, 0, 0, 0.5);
  border-color: var(--accent-color);
  color: #e5e5e5;
}

.header-squares {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.header-squares .square {
  position: absolute;
  border-radius: 4px;
  opacity: 0.4;
  mix-blend-mode: multiply;
}

.post-date {
  color: #fff;
  margin: 0 0 0.5rem;
  font-size: 0.875rem;
  display: inline-block;
  padding: 0.05rem 0.3rem;
  border-radius: 2px;
  background-color: var(--accent-color);
  box-decoration-break: clone;
  position: relative;
  z-index: 1;
}

[data-theme='dark'] .post-date {
  background-color: var(--accent-color-dark);
  color: #fff;
}

article.post table {
  border-collapse: collapse;
  margin: 0.5rem 0 1rem;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
  display: block;
  width: max-content;
  max-width: 100%;
  overflow-x: auto;
}

article.post th,
article.post td {
  border-bottom: 1px solid #e0e0e0;
  padding: 0.4rem 0.5rem;
}

article.post tr:last-child td {
  border-bottom: none;
}

article.post th {
  background-color: #f3f3f3;
}

article.post tbody tr:nth-child(even) {
  background-color: #fafafa;
}

[data-theme='dark'] article.post table {
  border-color: #444;
}

[data-theme='dark'] article.post th,
[data-theme='dark'] article.post td {
  border-bottom-color: #444;
}

[data-theme='dark'] article.post th {
  background-color: #1e1e1e;
}

[data-theme='dark'] article.post tbody tr:nth-child(even) {
  background-color: #2a2a2a;
}

.footer-note {
  text-align: center;
}

.post-navigation {
  margin-top: 2rem;
  display: flex;
  justify-content: space-between;
}

.post-navigation a {
  display: inline-block;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  background-color: var(--accent-color);
  color: #fff;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
  transition: background-color 0.2s, transform 0.2s;
}

.post-navigation a:hover {
  background-color: var(--accent-color-dark);
  transform: translateY(-2px);
}

.post-navigation .arrow {
  display: inline-block;
  width: 1em;
  text-align: center;
}

.post-navigation .prev-post .arrow {
  transform: rotate(180deg);
  margin-right: 0.5rem;
}

.post-navigation .next-post .arrow {
  margin-left: 0.5rem;
}

.bg {
  animation: slide 6s ease-in-out infinite alternate;
  background-image: linear-gradient(-60deg, var(--bg-gradient-start) 50%, var(--bg-gradient-end) 50%);
  bottom: 0;
  left: -50%;
  opacity: 0.5;
  position: fixed;
  right: -50%;
  top: 0;
  z-index: -1;
}

.bg2 {
  animation-direction: alternate-reverse;
  animation-duration: 8s;
}

.bg3 {
  animation-duration: 10s;
}

.scroll-top {
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  padding: 0.4rem 0.6rem;
  border: none;
  border-radius: 4px;
  background-color: var(--accent-color);
  color: white;
  cursor: pointer;
  display: none;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

.scroll-top.show {
  display: block;
}

body.post .bg {
  animation-duration: 20s;
}

body.post .bg2 {
  animation-duration: 25s;
}

body.post .bg3 {
  animation-duration: 30s;
}

@keyframes slide {
  0% {
    transform: translateX(-25%);
  }
  100% {
    transform: translateX(25%);
  }
}

/* Home page intro */
.home-intro {
  border: 1px solid var(--accent-color);
  border-radius: 8px;
  padding: 1rem;
  text-align: center;
  margin-bottom: 1.5rem;
  background-color: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(4px);
  animation: fade-slide 0.6s ease forwards;
  opacity: 0;
}

[data-theme='dark'] .home-intro {
  background-color: rgba(0, 0, 0, 0.4);
}

.home-intro h1 {
  margin-top: 0;
  font-size: 2rem;
}

@media (max-width: 600px) {
  .home-intro {
    padding: 0.75rem;
  }
  .home-intro h1 {
    font-size: 1.5rem;
  }
}

.home-intro p {
  margin: 0 0 0.75rem;
}

.home-intro p:last-child {
  margin-bottom: 0;
}

.contact-info {
  border: 1px solid var(--accent-color);
  border-radius: 8px;
  padding: 1rem;
  text-align: center;
  margin-bottom: 1.5rem;
  background-color: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(4px);
}

[data-theme='dark'] .contact-info {
  background-color: rgba(0, 0, 0, 0.4);
}

.contact-info {
  text-align: center;
}

.social-links {
  list-style: none;
  padding: 0;
  margin: 1rem auto 0;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  width: max-content;
}

.social-links li {
  margin: 0;
  padding: 0;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 600;
}

.social-link img {
  display: block;
}

[data-theme='dark'] .invert-on-dark {
  filter: invert(1);
}

@keyframes fade-slide {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Post preview cards */
.post-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 600px) {
  .post-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

.post-card {
  position: relative;
  display: block;
  color: var(--text-color);
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  --card-accent: var(--accent-color-light);
  border-top: 2px solid var(--card-accent);
  border-radius: 8px;
  text-decoration: none;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

.post-card:visited {
  color: var(--text-color);
}

[data-theme='dark'] .post-card {
  background-color: var(--card-bg-dark);
  border-color: var(--card-border-dark);
}

.post-card:hover,
.post-card:focus {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.post-card-thumb { 
  position: relative; 
  aspect-ratio: 16 / 9; 
  background-color: var(--card-border); 
  overflow: hidden; 
} 

[data-theme='dark'] .post-card-thumb { 
  background-color: var(--card-border-dark); 
} 

.post-card-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255,255,255,0), rgba(255,255,255,0.6), rgba(255,255,255,0));
  transform: translateX(-100%);
  opacity: 0;
  transition: opacity 0.2s ease-out;
}

.post-card-thumb.loading::after {
  opacity: 1;
  animation: shimmer 1.5s infinite;
}

.post-card-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.post-card-content {
  display: flex;
  flex-direction: column;
  height: 100%;
}

/* Compact header with light accent background */
.post-card-header {
  background-color: var(--accent-color-light);
  padding: 0.25rem 1rem 0;
}

[data-theme='dark'] .post-card-header {
  background-color: var(--card-bg-dark);
}

.post-card-title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--heading-color);
  line-height: 1.3;
}

.post-card-date {
  margin: 0.25rem 0 0;
  font-size: 0.75rem;
  display: inline-block;
  padding: 0.05rem 0.3rem;
  border-radius: 2px;
  background-color: var(--accent-color);
  color: #fff;
}

[data-theme='dark'] .post-card-date {
  background-color: var(--accent-color-dark);
}

.post-card-desc,
.post-card-tag {
  padding: 0 1rem;
}

.post-card-desc {
  margin: 0 0 0.5rem;
  flex-grow: 1;
  font-size: 0.8rem;
  line-height: 1.4;
  max-height: 8rem;
  overflow: hidden;
  position: relative;
}

.post-card-desc p {
  margin: 0.25rem 0;
}

.post-card-desc h1,
.post-card-desc h2,
.post-card-desc h3 {
  font-size: 0.9rem;
  margin: 0.25rem 0;
}

.post-card-desc ul,
.post-card-desc ol {
  padding-left: 1rem;
  margin: 0.25rem 0;
}

.post-card-desc code {
  font-size: 0.75rem;
}

.post-card-desc::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1.2rem;
  background: linear-gradient(to bottom, rgba(255,255,255,0), var(--card-bg));
}

[data-theme='dark'] .post-card-desc::after {
  background: linear-gradient(to bottom, rgba(0,0,0,0), var(--card-bg-dark));
}

.post-card-tag {
  margin-top: auto;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-color);
}

.post-card-content .post-card-readmore {
  margin: 0.5rem 0.75rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-color);
  text-decoration: underline;
}

.pagination {
  margin-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.pagination a {
  display: inline-block;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  background-color: var(--accent-color);
  color: #fff;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
  transition: background-color 0.2s, transform 0.2s;
}

.pagination a:hover,
.pagination a:focus {
  background-color: var(--accent-color-dark);
  transform: translateY(-2px);
}

.pagination-select {
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  background-color: var(--accent-color);
  color: #fff;
  border: none;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
}

.pagination-select option {
  color: var(--text-color);
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}