/* Minimal & Sharp Security Researcher Blog Theme */
:root {
  --bg-main: #0d1117;
  --bg-panel: #161b22;
  --text-main: #e6edf3;
  --text-muted: #8b949e;
  --accent-green: #3fb950;
  --accent-blue: #58a6ff;
  --accent-purple: #bc8cff;
  --accent-rose: #ff7b72;
  --border-color: #30363d;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

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

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.7;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 800px;
  margin: 0;
  padding: 48px 24px;
}

/* ASCII Art Banner */
.ascii-art {
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.15;
  color: var(--accent-green);
  overflow-x: auto;
  margin: 0 0 24px 0;
  padding: 0;
  border: none;
  background: transparent;
  user-select: none;
  white-space: pre;
}

/* Header & Intro */
header {
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 24px;
}

.site-title {
  font-size: 26px;
  font-weight: 700;
  color: #f0f6fc;
  margin: 0 0 10px 0;
  letter-spacing: -0.02em;
}

.site-bio {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 20px;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
}

.social-links a {
  color: var(--accent-blue);
  text-decoration: none;
}

.social-links a:hover {
  text-decoration: underline;
}

/* Filter Navigation */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  font-size: 13px;
  color: var(--text-muted);
}

.filter-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 13px;
  cursor: pointer;
  padding: 2px 0;
  transition: color 0.15s ease;
}

.filter-btn:hover, .filter-btn.active {
  color: var(--accent-green);
  font-weight: 600;
  text-decoration: underline;
}

/* Posts List */
.year-heading {
  font-size: 14px;
  color: var(--text-muted);
  margin: 32px 0 12px 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
}

.post-item {
  display: flex;
  flex-direction: column;
  padding: 12px 0;
  border-bottom: 1px border var(--border-color);
  gap: 4px;
}

@media (min-width: 540px) {
  .post-item {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
  }
}

.post-title-group {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}

.post-link {
  color: #f0f6fc;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.15s ease;
}

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

.post-tag {
  font-size: 12px;
  color: var(--accent-green);
}

.post-date {
  color: var(--text-muted);
  font-size: 13px;
  white-space: nowrap;
}

/* Post Reader */
.reader-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 20px;
  margin-bottom: 32px;
}

.back-link {
  color: var(--accent-blue);
  font-size: 13px;
  text-decoration: none;
  display: inline-block;
  margin-bottom: 16px;
}

.back-link:hover {
  text-decoration: underline;
}

.article-title {
  font-size: 26px;
  font-weight: 700;
  color: #f0f6fc;
  margin: 0 0 12px 0;
  line-height: 1.3;
}

.article-meta {
  color: var(--text-muted);
  font-size: 13px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.article-meta span.highlight {
  color: var(--accent-green);
}

/* Article Markdown Typography */
.markdown-body {
  line-height: 1.8;
}

.markdown-body h1 {
  font-size: 22px;
  color: #f0f6fc;
  margin-top: 36px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
}

.markdown-body h2 {
  font-size: 18px;
  color: var(--accent-green);
  margin-top: 32px;
  margin-bottom: 12px;
}

.markdown-body h3 {
  font-size: 16px;
  color: var(--accent-blue);
  margin-top: 24px;
  margin-bottom: 8px;
}

.markdown-body p {
  margin-bottom: 20px;
}

.markdown-body pre {
  background-color: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 16px;
  overflow-x: auto;
  font-size: 13px;
  margin: 20px 0;
}

.markdown-body code {
  font-family: var(--font-mono);
}

.markdown-body :not(pre) > code {
  background-color: rgba(110, 118, 129, 0.2);
  color: #3fb950;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
}

.markdown-body blockquote {
  border-left: 3px solid var(--accent-green);
  margin: 20px 0;
  padding-left: 16px;
  color: var(--text-muted);
}

.markdown-body ul, .markdown-body ol {
  padding-left: 20px;
  margin-bottom: 20px;
}

.markdown-body li {
  margin-bottom: 6px;
}