:root {
  --bg: #0d0d0d;
  --bg2: #141414;
  --border: #222;
  --text: #c9d1d9;
  --muted: #666;
  --accent: #e05252;
  --accent2: #f0a500;
  --code-bg: #161b22;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
header {
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 0;
  margin-bottom: 3rem;
}

.header-inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-title {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.5px;
}

.site-title a { color: inherit; }
.site-title a:hover { text-decoration: none; opacity: 0.8; }

.site-tagline {
  font-size: 0.8rem;
  color: var(--muted);
  font-style: italic;
}

nav {
  margin-left: auto;
  display: flex;
  gap: 1.5rem;
  font-size: 0.85rem;
}

nav a { color: var(--muted); }
nav a:hover { color: var(--text); text-decoration: none; }

/* Main */
main {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

/* Index */
.post-list { list-style: none; }

.post-list li {
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 0;
}

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

.post-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.post-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  line-height: 1.3;
}

.post-title a { color: var(--text); }
.post-title a:hover { color: var(--accent); text-decoration: none; }

.post-excerpt {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.5;
}

/* Post */
.post-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.post-header .post-meta { margin-bottom: 0.75rem; }

.post-header h1 {
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.75rem;
}

.post-content h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent2);
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
}

.post-content h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
  color: var(--text);
}

.post-content p { margin-bottom: 1.2rem; }

.post-content ul, .post-content ol {
  margin: 0 0 1.2rem 1.5rem;
}

.post-content li { margin-bottom: 0.4rem; }

.post-content a { color: var(--accent); }

.post-content strong { color: #fff; }

.post-content blockquote {
  border-left: 3px solid var(--accent);
  padding: 0.5rem 1rem;
  margin: 1.5rem 0;
  background: var(--bg2);
  color: var(--muted);
  font-style: italic;
}

.post-content code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--code-bg);
  padding: 0.15em 0.4em;
  border-radius: 3px;
  color: var(--accent2);
}

.post-content pre {
  background: var(--code-bg);
  padding: 1rem;
  border-radius: 4px;
  overflow-x: auto;
  margin-bottom: 1.2rem;
  border: 1px solid var(--border);
}

.post-content pre code {
  background: none;
  padding: 0;
}

/* CVE / threat badges */
.cve-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: #1a0000;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 0.1em 0.5em;
  border-radius: 3px;
  margin-right: 0.3em;
}

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  text-align: center;
  font-size: 0.78rem;
  color: var(--muted);
  font-family: var(--font-mono);
}

/* Responsive */
@media (max-width: 600px) {
  .header-inner { flex-direction: column; gap: 0.5rem; }
  nav { margin-left: 0; }
  .post-header h1 { font-size: 1.4rem; }
}