/* Global styles */
body {
  background-color: #f8f1e5;  /* warm beige, book-like */
  color: #222;                /* dark text for readability */
  font-family: Georgia, serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

/* Header + footer */
header, footer {
  text-align: center;
  background: #f3e9db;
  padding: 1rem;
  border-bottom: 1px solid #ddd;
}

footer {
  border-top: 1px solid #ddd;
  border-bottom: none;
  margin-top: 2rem;
}

/* Default layout for homepage (main + blog sidebar) */
main {
  display: flex;
  max-width: 1000px;
  margin: auto;
  padding: 1.5rem;
  gap: 2rem;
}

/* Main method section (homepage) */
main section {
  flex: 3;
}

/* Blog/aside (homepage) */
main aside {
  flex: 1;
  background: #faf6ef;
  padding: 1rem;
  border-left: 1px solid #ddd;
  font-size: 0.95rem;
}

/* Links */
a {
  color: darkred;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* Headings */
h1, h2, h3 {
  color: #2c2c2c;
  margin-top: 0;
}

/* Lists in asides */
aside ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
aside li {
  margin-bottom: 0.5rem;
}

/* Immersion stats block (homepage) */
.stats {
  margin-bottom: 2rem;
  padding: 0.5rem 0.5rem 0.5rem 0;
  border-bottom: 1px solid #ddd;
}
.stats li { font-weight: 500; }

/* ============== GUIDE PAGES ============== */

/* Guide-specific layout (left index, right content) */
.guide-layout {
  display: flex;
  max-width: 1000px;
  margin: auto;
  padding: 1.5rem;
  gap: 2rem;
}

/* Left sidebar (chapter index) — override homepage aside styling */
.guide-layout aside {
  flex: 1;
  background: #faf6ef;
  padding: 1rem;
  border-right: 1px solid #ddd;
  border-left: none;                 /* override homepage border */
  font-size: 0.95rem;
}

.guide-layout .chapters h2 { margin-top: 0; }

/* Main chapter content */
.guide-layout section {
  flex: 3;
}

/* Chapter navigation footer */
footer.chapter-nav {
  display: flex;
  justify-content: space-between;
  max-width: 1000px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}
footer.chapter-nav a { font-weight: bold; }

/* Responsive (for mobile) */
@media (max-width: 700px) {
  main,
  .guide-layout {
    flex-direction: column;
  }
  main aside {
    border-left: none;
    border-top: 1px solid #ddd;
  }
  .guide-layout aside {
    border-right: none;
    border-top: 1px solid #ddd;
  }
}

.last-updated {
  font-size: 0.9rem;
  font-style: italic;
  margin-top: -0.5rem;
  margin-bottom: 0.5rem;
  color: #555;
}