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

body {
  background-color: #000;
  color: #fff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.7;
  min-height: 100vh;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: #000;
  border-bottom: 1px solid #222;
  z-index: 100;
}

nav {
  max-width: 800px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

nav .logo {
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

nav a {
  color: #fff;
  text-decoration: none;
  transition: opacity 0.2s ease;
}

nav a:hover {
  opacity: 0.6;
}

main {
  max-width: 800px;
  margin: 0 auto;
  padding: 6rem 2rem 4rem 2rem;
}

article {
  animation: fadeIn 0.4s ease;
}

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

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

h2 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-top: 3rem;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

h4, h5, h6 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1.5rem;
  color: #ccc;
}

a {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: opacity 0.2s ease;
}

a:hover {
  opacity: 0.6;
}

b, strong {
  font-weight: 600;
  color: #fff;
}

i, em {
  font-style: italic;
}

ul, ol {
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
  color: #ccc;
}

li {
  margin-bottom: 0.5rem;
}

li::marker {
  color: #666;
}

code {
  background-color: #111;
  border: 1px solid #333;
  border-radius: 4px;
  color: #fff;
  padding: 0.2em 0.4em;
  font-family: "SF Mono", "Fira Code", "Consolas", monospace;
  font-size: 0.9em;
}

pre {
  background-color: #111;
  border: 1px solid #333;
  border-radius: 8px;
  padding: 1.25rem;
  overflow-x: auto;
  margin-bottom: 1.5rem;
}

pre code {
  padding: 0;
  border: none;
  background: none;
}

blockquote {
  border-left: 2px solid #444;
  padding-left: 1.5rem;
  margin: 2rem 0;
  color: #888;
  font-style: italic;
}

blockquote p {
  color: #888;
}

img {
  max-width: 300px;
  height: auto;
  border-radius: 8px;
  margin: 1.5rem 0;
  display: block;
}

hr {
  border: none;
  border-top: 1px solid #333;
  margin: 3rem 0;
}

::selection {
  background-color: #fff;
  color: #000;
}

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

::-webkit-scrollbar-track {
  background: #000;
}

::-webkit-scrollbar-thumb {
  background-color: #333;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background-color: #444;
}

* {
  scrollbar-width: thin;
  scrollbar-color: #333 #000;
}

.blog-list {
  list-style: none;
  padding: 0;
}

.blog-list li {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid #222;
}

.blog-list li:last-child {
  border-bottom: none;
}

.blog-list a {
  font-size: 1.2rem;
  font-weight: 500;
  text-decoration: none;
}

.blog-list a:hover {
  text-decoration: underline;
}