/* ============================================================
   Blog — Single Post  |  Minimalist Redesign
   Palette: dark #1a1a1a · bg-alt #242424 · gold #d4af37
   ============================================================ */

/* ── Custom properties ────────────────────────────────────── */
:root {
  --c-bg:          #1a1a1a;
  --c-bg-alt:      #242424;
  --c-bg-raised:   #2a2a2a;
  --c-fg:          #e8e8e8;
  --c-fg-strong:   #ffffff;
  --c-fg-muted:    rgba(232, 232, 232, 0.68);
  --c-fg-subtle:   rgba(232, 232, 232, 0.40);
  --c-gold:        #d4af37;
  --c-gold-dim:    rgba(212, 175, 55, 0.18);
  --c-gold-faint:  rgba(212, 175, 55, 0.07);
  --c-border:      rgba(212, 175, 55, 0.14);
  --c-border-hard: rgba(212, 175, 55, 0.30);
  --sidebar-w:     260px;  /* used for both left and right */
  --ease:          cubic-bezier(0.4, 0, 0.2, 1);
  --dur:           0.22s;
  --font-mono:     'Courier New', 'Consolas', monospace;
  --prose-max:     72ch;      /* comfortable reading line length */
}

/* ── Reading progress bar ─────────────────────────────────── */
#reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: var(--c-gold);
  z-index: 9999;
  transition: width 0.1s linear;
  pointer-events: none;
}

/* ── Dual sidebar overrides ──────────────────────────────── */

/* Shared properties */
body.layout-post .sidebar {
  width: var(--sidebar-w) !important;
  background: var(--c-bg) !important;
  box-shadow: none !important;
}

/* LEFT sidebar: related posts */
body.layout-post .sidebar-left {
  left: 0 !important;
  right: auto !important;
  border-right: 1px solid var(--c-border) !important;
  border-left: none !important;
  /* inherits transform: translateX(0) / translateX(-100%) from main.scss */
}

/* RIGHT sidebar: TOC */
body.layout-post .sidebar-right {
  left: auto !important;
  right: 0 !important;
  border-left: 1px solid var(--c-border) !important;
  border-right: none !important;
  /* Hidden state slides OUT to the right, not left */
  transform: translateX(0) !important;
}

body.layout-post #main,
body.layout-post #contact {
  /* Content sits between the two sidebars */
  margin-left: var(--sidebar-w) !important;
  margin-right: var(--sidebar-w) !important;
}

.sidebar-content {
  padding: 5rem 1.2rem 2rem !important;
}

/* Sidebar section headers */
.sidebar-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  padding: 0.5rem 0 0.6rem;
  border-bottom: 1px solid var(--c-border);
  margin-bottom: 0.8rem;
  user-select: none;
}
.sidebar-section-header h4 {
  margin: 0 !important;
  padding: 0 !important;
  border: none !important;
  font-size: 0.7rem !important;
  font-weight: 700 !important;
  letter-spacing: 0.12em !important;
  text-transform: uppercase !important;
  color: var(--c-fg-muted) !important;
}
.sidebar-section-header h4 .fa {
  color: var(--c-gold);
  margin-right: 0.45em;
  font-size: 0.9em;
}
.collapse-toggle {
  background: none;
  border: none;
  color: var(--c-fg-subtle);
  cursor: pointer;
  padding: 0;
  line-height: 1;
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.collapse-toggle:hover { color: var(--c-gold); }
.sidebar-section-content.collapsed { display: none; }
.sidebar-section-content.expanded  { display: block; }

/* Related posts in sidebar */
.recent-posts {
  list-style: none !important;
  padding: 0 !important;
  margin: 0 !important;
}
.recent-post-item {
  border-bottom: 1px solid var(--c-border) !important;
  padding-bottom: 0.75rem !important;
  margin-bottom: 0.75rem !important;
}
.recent-post-item:last-child { border-bottom: none !important; }

.recent-post-link {
  display: flex !important;
  align-items: flex-start !important;
  gap: 0.6rem !important;
  text-decoration: none !important;
  border-bottom: none !important;
  color: var(--c-fg-muted) !important;
  transition: color var(--dur) var(--ease) !important;
  padding: 0 !important;
}
.recent-post-link:hover {
  color: var(--c-fg) !important;
  background: none !important;
  border-radius: 0 !important;
  margin: 0 !important;
}
.recent-post-content h5 {
  font-size: 0.78rem !important;
  font-weight: 500 !important;
  line-height: 1.4 !important;
  color: inherit !important;
  margin: 0 0 0.2rem !important;
}
.recent-post-date {
  font-family: var(--font-mono) !important;
  font-size: 0.65rem !important;
  color: var(--c-fg-subtle) !important;
}

/* TOC list in sidebar */
#toc-sidebar-nav .toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
#toc-sidebar-nav .toc-list li {
  margin-bottom: 0.22rem;
  line-height: 1.4;
}
#toc-sidebar-nav .toc-list a {
  font-size: 0.76rem;
  color: var(--c-fg-muted);
  text-decoration: none;
  border-bottom: none;
  display: block;
  padding: 0.1rem 0;
  transition: color var(--dur) var(--ease),
              padding-left var(--dur) var(--ease);
}
#toc-sidebar-nav .toc-list a:hover {
  color: var(--c-gold) !important;
  padding-left: 0.3rem;
}
#toc-sidebar-nav .toc-list a[data-active] {
  color: var(--c-gold);
  font-weight: 600;
  padding-left: 0.35rem;
}
#toc-sidebar-nav .toc-level-1 { padding-left: 0; }
#toc-sidebar-nav .toc-level-2 { padding-left: 0.9rem; }
#toc-sidebar-nav .toc-level-3 { padding-left: 1.7rem; }
#toc-sidebar-nav .toc-level-4 { padding-left: 2.4rem; }
#toc-sidebar-nav .toc-number { color: var(--c-fg-subtle); font-size: 0.9em; }

/* "View All" link */
.sidebar-category-link { margin-top: 1rem; }
.view-all-category {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-gold) !important;
  border-bottom: none !important;
  text-decoration: none;
  transition: gap var(--dur) var(--ease);
}
.view-all-category:hover { gap: 0.5em; color: var(--c-gold) !important; }

/* Mobile sidebar toggles ─────────────────────────────────── */
.sidebar-toggle {
  background: var(--c-bg-alt) !important;
  border: 1px solid var(--c-border) !important;
  color: var(--c-fg) !important;
  border-radius: 3px !important;
}
.sidebar-toggle:hover {
  background: var(--c-bg-raised) !important;
  border-color: var(--c-gold) !important;
}
/* Left toggle: bottom-left corner */
.sidebar-toggle--left {
  left: 8px !important;
  right: auto !important;
  bottom: 1.4rem !important;
  top: auto !important;
}
/* Right toggle: bottom-right corner */
.sidebar-toggle--right {
  left: auto !important;
  right: 8px !important;
  bottom: 1.4rem !important;
  top: auto !important;
}

/* ── Post header ──────────────────────────────────────────── */
.post-header-block {
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--c-border);
  margin-bottom: 2.4rem;
}

.post-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5em;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 0.9rem;
}
.post-breadcrumb a {
  color: var(--c-gold);
  text-decoration: none;
  border-bottom: none;
  transition: opacity var(--dur) var(--ease);
}
.post-breadcrumb a:hover { opacity: 0.7; color: var(--c-gold) !important; }
.post-breadcrumb .sep { color: var(--c-fg-subtle); }

.post-header-block h1 {
  font-size: 2em;
  line-height: 1.25;
  color: var(--c-fg-strong);
  margin: 0 0 1.1rem !important;
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-fg-muted);
}
.post-meta__item {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
}
.post-meta__item .fa {
  color: var(--c-gold);
  font-size: 0.9em;
}
.post-meta__sep {
  color: var(--c-border-hard);
  font-size: 1.1em;
}

.post-tags-header {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1rem;
}
.post-tag-pill {
  padding: 0.15em 0.65em;
  background: var(--c-gold-faint);
  border: 1px solid var(--c-border);
  color: var(--c-fg-muted);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 2px;
}

/* ── Hero image ───────────────────────────────────────────── */
.post-hero {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  display: block;
  border-radius: 2px;
  margin-bottom: 2.2rem;
  border: 1px solid var(--c-border);
}

/* ── Post body / prose ────────────────────────────────────── */
.post-body {
  /* Comfortable reading width; sits inside .inner which is already wide */
  max-width: var(--prose-max);
}

/* Paragraph and list spacing */
.post-body p,
.post-body li {
  font-size: 1rem;
  line-height: 1.78;
  color: var(--c-fg);
}

.post-body h1,
.post-body h2,
.post-body h3,
.post-body h4 {
  color: var(--c-fg-strong);
  margin-top: 2.2rem;
}
.post-body h2 { border-bottom: 1px solid var(--c-border); padding-bottom: 0.4rem; }

/* Section numbering colour */
.post-body .section-number { color: var(--c-gold); margin-right: 0.25em; }

/* Blockquote */
.post-body blockquote {
  border-left: 3px solid var(--c-gold);
  background: var(--c-gold-faint);
  margin: 1.6rem 0;
  padding: 1rem 1.4rem;
  border-radius: 0 2px 2px 0;
  color: var(--c-fg-muted);
  font-style: italic;
}
.post-body blockquote p { margin: 0; color: inherit; }

/* Inline code */
.post-body code {
  font-family: var(--font-mono);
  background: var(--c-bg-raised);
  border: 1px solid var(--c-border);
  padding: 0.15em 0.45em;
  border-radius: 2px;
  font-size: 0.87em;
  color: var(--c-gold);
}

/* Code blocks */
.post-body pre {
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  border-left: 3px solid var(--c-gold);
  border-radius: 2px;
  padding: 1.2rem 1.4rem;
  overflow-x: auto;
  margin: 1.6rem 0;
}
.post-body pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.85rem;
  color: var(--c-fg);
  line-height: 1.7;
}

/* Tables */
.post-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 1.6rem 0;
}
.post-body th {
  background: var(--c-gold-faint);
  color: var(--c-fg-strong);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.6rem 0.9rem;
  border-bottom: 1px solid var(--c-border-hard);
  text-align: left;
}
.post-body td {
  padding: 0.55rem 0.9rem;
  border-bottom: 1px solid var(--c-border);
  color: var(--c-fg-muted);
  vertical-align: top;
}
.post-body tr:last-child td { border-bottom: none; }

/* Horizontal rule */
.post-body hr {
  border: none;
  border-top: 1px solid var(--c-border);
  margin: 2.5rem 0;
}

/* Images inside post */
.post-body img {
  max-width: 100%;
  height: auto;
  border-radius: 2px;
  border: 1px solid var(--c-border);
  display: block;
  margin: 1.6rem auto;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 980px) {
  /* Reset both margins so content goes full-width */
  body.layout-post #main,
  body.layout-post #contact {
    margin-left: 0 !important;
    margin-right: 0 !important;
  }
  /* Left sidebar: slides in from the left (default from main.scss) */
  /* Right sidebar: slides in from the right */
  body.layout-post .sidebar-right {
    transform: translateX(100%) !important;
  }
  body.layout-post .sidebar-right.active {
    transform: translateX(0) !important;
  }
  .post-body { max-width: 100%; }
}

@media (max-width: 736px) {
  .post-header-block h1 { font-size: 1.55em; }
  .post-meta { gap: 0.8rem; }
}