@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,300&family=IBM+Plex+Mono:wght@400;500&display=swap');

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

:root {
  --bg:           #0d1117;
  --bg-sidebar:   #090c10;
  --bg-hover:     #161b22;
  --bg-code:      #161b22;
  --border:       #21262d;
  --border-faint: #1a1f26;
  --text-primary:   #e6edf3;
  --text-secondary: #c9d1d9;
  --text-tertiary:  #8b949e;
  --accent:       #d4955a;
  --accent-dim:   rgba(212,149,90,0.10);
  --link:         #2dd4bf;
  --link-hover:   #5eead4;
  --font-mono:    'IBM Plex Mono', monospace;
  --font-console: 'Space Mono', monospace;
  --font-body:    'DM Sans', system-ui, sans-serif;
  --sidebar-w:    240px;
}

html { font-size: 17px; }

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  min-height: 100vh;
}

/* ---- Outer centering shell ---- */
.shell {
  display: flex;
  max-width: 1280px;
  margin: 0 auto;
  min-height: 100vh;
}

/* ---- Sidebar ---- */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  min-height: 100vh;
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 2rem 0;
  overflow-y: auto;
}

.sidebar-top {
  padding: 0 1.75rem 1.4rem;
  border-bottom: 1px solid var(--border-faint);
  margin-bottom: 1.2rem;
}

.wordmark {
  font-family: var(--font-console);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  display: block;
  margin-bottom: 0.35rem;
  letter-spacing: -0.02em;
}

.tagline {
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-weight: 300;
}

.nav { padding: 0 1rem; }

.nav-section {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-tertiary);
  padding: 0 0.6rem;
  margin: 1rem 0 0.35rem;
  display: block;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.6rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 5px;
  border-left: 2px solid transparent;
  margin-bottom: 2px;
  transition: color 80ms, background 80ms, border-color 80ms;
}
.nav-link:hover { color: var(--text-primary); background: var(--bg-hover); border-left-color: var(--border); }
.nav-link.active { color: var(--accent); background: var(--accent-dim); border-left-color: var(--accent); }
.nav-link .ext { margin-left: auto; font-size: 0.7rem; opacity: 0.4; }

.sidebar-footer {
  margin-top: auto;
  padding: 1.25rem 1.75rem 0;
  border-top: 1px solid var(--border-faint);
}
.sidebar-footer a {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-tertiary);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.sidebar-footer a:hover { color: var(--accent); }

/* ---- Main content ---- */
.main {
  flex: 1;
  min-width: 0;
  padding: 3.5rem 3.5rem;
  max-width: 880px;
}

/* ---- Page header ---- */
.page-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  display: block;
  margin-bottom: 0.6rem;
  opacity: 0.85;
}

.page-title {
  font-family: var(--font-body);
  font-size: 2.2rem;
  font-weight: 300;
  color: var(--text-primary);
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: 0.7rem;
}

.page-sub {
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.55;
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-faint);
}

/* ---- Post cards ---- */
.post-card {
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border-faint);
  text-decoration: none;
  display: block;
  position: relative;
}
.post-card:first-of-type { border-top: 1px solid var(--border-faint); }
.post-card::before {
  content: '';
  position: absolute;
  left: -3.5rem;
  top: 0; bottom: 0;
  width: 2px;
  background: var(--accent);
  opacity: 0;
  transition: opacity 80ms;
}
.post-card:hover::before { opacity: 1; }
.post-card:hover .post-card-title { color: var(--accent); }

.card-meta {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
  display: flex;
  gap: 1rem;
}
.card-meta .num { color: var(--accent); opacity: 0.85; }

.post-card-title {
  font-family: var(--font-body);
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 0.5rem;
  transition: color 80ms;
}

.post-card-desc {
  font-family: var(--font-body);
  font-size: 0.97rem;
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.65;
}

/* ---- Post body ---- */
.post-meta {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.9rem;
  display: flex;
  gap: 1.1rem;
}
.post-meta .num { color: var(--accent); }

.post-title {
  font-family: var(--font-body);
  font-size: 2.2rem;
  font-weight: 300;
  color: var(--text-primary);
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: 0.7rem;
}

.post-lede {
  font-family: var(--font-body);
  font-size: 1.1rem;
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.55;
  margin-bottom: 2.25rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--border-faint);
}

.post-body { max-width: 780px; }
.post-body p {
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.55;
  margin-bottom: 1.4rem;
}
.post-body p strong { color: var(--text-primary); font-weight: 500; }
.post-body p a, .post-body li a,
.about-body p a, .about-body li a {
  color: var(--link);
  text-decoration: none;
  transition: color 80ms;
}
.post-body p a:hover, .post-body li a:hover,
.about-body p a:hover, .about-body li a:hover {
  color: var(--link-hover);
  text-decoration: underline;
}
.post-body h2 {
  font-family: var(--font-body);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-primary);
  margin: 2.5rem 0 0.85rem;
  letter-spacing: -0.01em;
}
.post-body h3 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin: 2rem 0 0.6rem;
}

/* ---- Screenshots ---- */
.screenshot {
  margin: 2rem 0;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #000;
}
.screenshot img { width: 100%; display: block; }
.screenshot-caption {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-tertiary);
  padding: 0.55rem 0.9rem;
  border-top: 1px solid var(--border-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--bg-sidebar);
}

/* ---- About / general body text ---- */
.about-body p {
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.8;
  margin-bottom: 1.4rem;
}
.about-body p strong { color: var(--text-primary); font-weight: 500; }
.about-body h2 {
  font-family: var(--font-body);
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--text-primary);
  margin: 2.25rem 0 0.8rem;
}

/* ---- Credentials ---- */
.cred-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.85rem 0 1.75rem;
}
.cred {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-secondary);
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.25rem 0.65rem;
  letter-spacing: 0.04em;
}

/* ---- Console handle ---- */
.console-handle {
  font-family: var(--font-console);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.03em;
  display: block;
  margin-bottom: 0.35rem;
}

/* ---- Architecture list ---- */
.arch-list {
  list-style: none;
  margin: 0.85rem 0 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.arch-list li {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.6;
  padding-left: 1.25rem;
  position: relative;
}
.arch-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  top: 0.15rem;
}

.divider { border: none; border-top: 1px solid var(--border-faint); margin: 2.25rem 0; }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .sidebar { width: 200px; }
  .main { padding: 2.5rem 2rem; }
}

@media (max-width: 640px) {
  .shell { flex-direction: column; }
  .sidebar { width: 100%; height: auto; position: relative; }
  .main { padding: 2rem 1.25rem; }
}

/* ---- Callout ---- */
.callout {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-left: 2px solid var(--accent);
  border-radius: 4px;
  padding: 1rem 1.25rem;
  margin: 2rem 0;
}
.callout-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 0.45rem;
  display: block;
  opacity: 0.85;
}
.callout p {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.7;
  margin: 0;
}

/* ---- Inline code ---- */
.post-body code,
.about-body code,
.callout code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--text-primary);
  background: var(--bg-code);
  border: 1px solid var(--border-faint);
  border-radius: 3px;
  padding: 0.12em 0.4em;
  letter-spacing: 0.01em;
}

/* ---- Code blocks ---- */
.post-body pre,
.about-body pre {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0 1.75rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.post-body pre code,
.about-body pre code {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  background: none;
  border: none;
  border-radius: 0;
  padding: 0;
  line-height: 1.7;
  letter-spacing: 0.01em;
  display: block;
  white-space: pre;
}

/* Ensure highlight.js theme background and padding do not override our standard code block styling */
pre code.hljs {
  background: transparent !important;
  padding: 0 !important;
}

/* Override highlight.js comment color for better contrast against dark background */
.hljs-comment {
  color: #aab4bf !important;
  font-style: italic;
}

/* ---- Image lightbox ---- */
.lightbox-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.92);
  z-index: 1000;
  cursor: zoom-out;
  justify-content: center;
  align-items: center;
}
.lightbox-overlay.active { display: flex; }
.lightbox-overlay img {
  max-width: 92vw;
  max-height: 92vh;
  border-radius: 4px;
}
.screenshot {
  margin: 2rem 0;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  background: var(--bg-code);
}
.screenshot img {
  display: block;
  max-width: 100%;
  height: auto;
}
.screenshot-row {
  display: flex;
  gap: 1rem;
  margin: 2rem 0;
}
.screenshot-row .screenshot {
  flex: 1;
  margin: 0;
}
.screenshot-caption {
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--text-tertiary);
  border-top: 1px solid var(--border-faint);
  text-align: center;
}

/* YAML/config key highlighting (optional, via spans) */
.post-body pre code .key {
  color: var(--text-primary);
}
.post-body pre code .comment {
  color: var(--text-tertiary);
  font-style: italic;
}