:root {
  --bg: #0f172a;
  --sidebar: #020617;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --border: #1e293b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
}

/* ------------------ */
/* Sidebar */
/* ------------------ */

#sidebar {
  width: 240px;
  background: var(--sidebar);
  padding: 20px;
  height: 100vh;
  position: sticky;
  top: 0;
  transition: transform 0.2s ease;
}

#sidebar h2 {
  margin-top: 0;
}

nav a {
  display: block;
  color: var(--muted);
  text-decoration: none;
  margin: 10px 0;
  font-size: 14px;
}

nav a:hover {
  color: white;
}

/* ------------------ */
/* Content */
/* ------------------ */

main {
  flex: 1;
  padding: 40px;
  max-width: 900px;
  margin: 0 auto;
}

section {
  margin-bottom: 80px;
}

h1 {
  font-size: 32px;
  margin-bottom: 10px;
}

h2 {
  margin-top: 40px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 6px;
}

p {
  line-height: 1.7;
  color: var(--muted);
}

/* ------------------ */
/* Code blocks */
/* ------------------ */

pre {
  background: #020617;
  padding: 16px;
  border-radius: 10px;
  overflow-x: auto;
  border: 1px solid var(--border);
}

code {
  color: var(--accent);
  font-family: monospace;
  font-size: 14px;
}

/* inline code */
p code {
  background: #020617;
  padding: 2px 6px;
  border-radius: 4px;
}

/* ------------------ */
/* Mobile */
/* ------------------ */

#menuToggle {
  display: none;
  position: fixed;
  top: 15px;
  left: 15px;
  z-index: 1000;
  background: var(--sidebar);
  border: 1px solid var(--border);
  color: white;
  padding: 8px 10px;
  border-radius: 6px;
}

/* mobile layout */
@media (max-width: 768px) {
  body {
    flex-direction: column;
  }

  #menuToggle {
    display: block;
  }

  #sidebar {
    position: fixed;
    left: 0;
    top: 0;
    min-height: 100vh;
    height: auto;
    transform: translateX(-100%);
    z-index: 999;
  }

  #sidebar.open {
    transform: translateX(0);
  }

  main {
    padding: 20px;
  }
}

/* Markdown content spacing */

section p {
  margin: 12px 0;
}

section pre {
  margin: 20px 0;
}

section ul {
  padding-left: 20px;
}

section li {
  margin: 6px 0;
}

p img {
  width:192px;
}