/* ============================================================
   Random full-page background with frosted-glass readability
   Background is sharp everywhere; only the central text
   column gets a blurred frosted-glass effect.
   ============================================================ */

/* Make html and body fill the viewport */
html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}

/* Override minima's solid background */
body {
  background-color: #1a1a2e;  /* fallback dark color while image loads */
  position: relative;
}

/* Full-screen background layer — sharp, no blur */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;

  /* The actual image is set via JS through the --bg-image custom property */
  background-image: var(--bg-image);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;

  /* Slightly dim the background so white text areas pop */
  filter: brightness(0.85);
}

/* ---- Header & footer: transparent, no blur ---- */

/* Header sits inside the flex container, spanning the full row */
.site-header {
  flex: 0 0 100%;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.25);
  padding: 12px 0;
}

/* Header's inner wrapper matches the combined width of content + TOC */
.site-header .wrapper {
  max-width: 1044px;
}

.site-header .site-title,
.site-header .site-title:visited {
  color: #111;
  text-shadow: none;
}

.site-header .page-link {
  color: #424242;
  text-shadow: none;
}

.site-footer {
  background: transparent;
  border-top: 1px solid rgba(255, 255, 255, 0.25);
  color: #ddd;
}

/* ---- Main content area: flex row for wrapper + TOC ---- */
.page-content {
  background: transparent;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-start;
  gap: 24px;
  padding: 40px 24px 0;
}

/* ---- The central text column: frosted glass ---- */

/* Only target the main content wrapper, not header/footer wrappers */
.page-content > .wrapper {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 8px;
  padding-top: 20px;
  padding-bottom: 20px;
  margin-top: 30px;
  margin-bottom: 30px;

  /* Flex child: don't grow past 800px, but can shrink */
  flex: 0 1 800px;
  min-width: 0;
  margin-left: 0;
  margin-right: 0;
}

/* ---- Code / blockquotes / tables (inside wrapper) ---- */

/* Inline code */
code {
  background-color: rgba(238, 238, 255, 0.85);
}

/* Code blocks — black background, rounded corners */

/* Outer wrapper: spacing below each code block */
div.highlighter-rouge {
  margin-bottom: 15px;
}

/* The highlight container: dark theme (for Rouge-wrapped blocks) */
div.highlight {
  background: #1e1e1e;
  border: 1px solid #333;
  border-radius: 8px;
  padding: 12px 16px;
  overflow-x: auto;
}

/* Bare <pre> (unrecognized language, no Rouge wrapper) */
pre:not(.highlight) {
  background: #1e1e1e;
  border: 1px solid #333;
  border-radius: 8px;
  padding: 12px 16px;
  overflow-x: auto;
}

/* <pre> inside div.highlight: inherit from parent, no double padding/border */
div.highlight pre {
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0;
  margin: 0;
}

/* Override minima's light background on .highlight */
.highlight,
.highlighter-rouge .highlight {
  background: #1e1e1e !important;
}

/* Code text: light on dark, no extra chrome */
pre > code,
div.highlight code {
  background-color: transparent;
  border: none;
  padding: 0;
  font-size: 14px;
  color: #d4d4d4;
}

blockquote {
  background: rgba(255, 255, 255, 0.5);
  border-left-color: rgba(130, 130, 130, 0.6);
}

table {
  background: rgba(255, 255, 255, 0.7);
}

table th {
  background-color: rgba(240, 240, 240, 0.85);
}

/* ---- Footer text readability ---- */
.site-footer,
.site-footer .footer-heading,
.site-footer .contact-list,
.site-footer .social-media-list,
.site-footer a,
.site-footer a:visited {
  color: #eee;
}

/* ---- Table of Contents Sidebar ---- */

/* Sits beside the wrapper in the same flex row — no overlap */
.toc-sidebar {
  position: sticky;
  top: 20px;
  flex: 0 0 220px;
  width: 220px;

  /* Match the main wrapper's frosted glass */
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 8px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.25);

  /* Font */
  font-size: 0.85rem;
  line-height: 1.5;

  /* Scroll if too tall */
  max-height: calc(100vh - 40px);
  overflow-y: auto;
}

.toc-heading {
  margin: 0 0 10px 0;
  font-size: 0.85rem;
  font-weight: 600;
  color: #424242;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.toc-list .toc-sub {
  list-style: none;
  margin: 0;
  padding-left: 14px;
}

.toc-link {
  display: block;
  padding: 3px 8px;
  color: #555;
  text-decoration: none;
  border-left: 2px solid transparent;
  border-radius: 0 4px 4px 0;
  transition: all 0.15s ease;
  word-wrap: break-word;
}

.toc-link:hover {
  background: rgba(0, 0, 0, 0.05);
}

.toc-link.active {
  color: #0366d6;
  font-weight: 600;
  border-left-color: #0366d6;
  background: rgba(3, 102, 214, 0.08);
}

.toc-h3 {
  font-size: 0.8rem;
  padding-left: 12px;
}

/* Hide TOC when the viewport is too narrow for both columns */
@media screen and (max-width: 1050px) {
  .toc-sidebar {
    display: none;
  }

  /* Header inner wrapper shrinks back to content width when TOC is hidden */
  .site-header .wrapper {
    max-width: 800px;
  }
}

/* ---- Mobile responsiveness ---- */
@media screen and (max-width: 600px) {
  .page-content {
    padding-top: 20px;
    padding-left: 0;
    padding-right: 0;
  }

  .page-content > .wrapper {
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    background: rgba(255, 255, 255, 0.78);
    border-radius: 0;
    margin-top: 16px;
    margin-bottom: 16px;
    flex: 1 1 auto;
  }

  .site-header .wrapper {
    max-width: 100%;
  }
}