:root {
  --primary-color: #00ff00; /* Terminal Green */
  --primary-light: #33ff33;
  --primary-dark: #00cc00;
  --text-color: #f0f0f0;
  --heading-color: #ffffff;
  --bg-color: #000000;
  --secondary-bg: #0a0a0a;
  --border-color: #333333;
  --muted-color: #888888;
  --code-bg: #111111;
  --code-text: #00ff00;
  --terminal-prompt: #00ff00;
}

body {
  font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  color: var(--text-color);
  line-height: 1.6;
  margin: 0;
  padding: 0;
  background-color: var(--bg-color);
  background-image: 
    linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%),
    linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
  background-size: 100% 4px, 3px 100%;
}

header {
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
  background-color: var(--secondary-bg);
}

nav ul {
  list-style: none;
  padding: 0;
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 0;
}

nav a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  font-size: 0.9rem;
  transition: all 0.2s ease;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

nav a:hover, nav a.active {
  color: var(--primary-color);
  text-shadow: 0 0 8px var(--primary-color);
}

main {
  max-width: 850px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

h1, h2, h3 {
  color: var(--heading-color);
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

h1 { 
  font-size: 2.2rem; 
  margin-bottom: 1.5rem;
  border-left: 4px solid var(--primary-color);
  padding-left: 1rem;
}

h2 { font-size: 1.5rem; margin-top: 2.5rem; margin-bottom: 1rem; color: var(--primary-color); }
h3 { font-size: 1.2rem; margin-top: 2rem; margin-bottom: 0.75rem; }

a {
  color: var(--primary-color);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: all 0.2s ease;
}

a:hover {
  background-color: var(--primary-color);
  color: var(--bg-color);
  text-decoration: none;
}

.terminal-prefix::before {
  content: "> ";
  color: var(--terminal-prompt);
}

.post-list {
  list-style: none;
  padding: 0;
  margin: 2rem 0;
}

.post-item {
  margin-bottom: 2rem;
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  background-color: var(--secondary-bg);
  transition: border-color 0.3s ease;
}

.post-item:hover {
  border-color: var(--primary-color);
  box-shadow: 0 0 15px rgba(0, 255, 0, 0.1);
}

.post-item h2, .post-item h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.post-item h2 a, .post-item h3 a {
  text-decoration: none;
  color: var(--heading-color);
}

.post-item h2 a:hover, .post-item h3 a:hover {
  background: none;
  color: var(--primary-color);
}

.post-date {
  font-size: 0.8rem;
  color: var(--muted-color);
  margin-bottom: 0.5rem;
  display: block;
}

.post-content {
  margin-top: 2.5rem;
}

.post-content pre {
  background-color: var(--code-bg);
  color: var(--code-text);
  padding: 1rem;
  border: 1px solid var(--border-color);
  overflow-x: auto;
  font-size: 0.9rem;
}

.post-content code {
  font-family: inherit;
}

footer {
  text-align: center;
  padding: 2rem 0;
  color: var(--muted-color);
  font-size: 0.8rem;
  border-top: 1px solid var(--border-color);
  margin-top: 4rem;
  background-color: var(--secondary-bg);
}

.cursor {
  display: inline-block;
  width: 10px;
  height: 1.2em;
  background-color: var(--primary-color);
  margin-left: 5px;
  vertical-align: middle;
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

@media (max-width: 640px) {
  nav ul {
    gap: 1rem;
    flex-wrap: wrap;
  }
  h1 { font-size: 1.8rem; }
}