/* ============================================================
   scb-manual.css — shared base layout + typography + components
   for the unified SCB manual system (template_unification P0).
   Zero book colors here: accents come from scb-books.css scope
   classes via --scb-accent tokens on <body class="scb-manual ...-scope">.
   Every selector is scoped under .scb-manual. No !important.
   ============================================================ */

.scb-manual {
  /* ---- design tokens (blueprint section 3) ---- */
  --scb-bg: #0a0a0c;
  --scb-surface: #14141a;
  --scb-card: #1a1a22;
  --scb-card-hover: #22222c;
  --scb-text: #f4f0e6;
  --scb-muted: #a8a5a0;
  --scb-dim: #6f6c64;
  --scb-line: rgba(244, 240, 230, .10);
  --scb-line-strong: rgba(244, 240, 230, .15);
  --scb-accent: #D4A853;            /* overridden per book by scb-books.css */
  --scb-accent-contrast: #0a0a0c;
  --scb-accent-soft: rgba(212, 168, 83, .28);
  --scb-secondary: #D4A853;
  --scb-font-body: 'IBM Plex Sans Thai', system-ui, -apple-system, sans-serif;
  --scb-font-display: 'Cormorant Garamond', Georgia, serif;
  --scb-font-mono: 'JetBrains Mono', monospace;
  --scb-body-size: 17px;
  --scb-body-lh: 1.75;
  --scb-measure: 48rem;
  --scb-r-sm: 6px;
  --scb-r-md: 12px;
  --scb-r-lg: 20px;
  --scb-target: 44px;

  /* ---- legacy variable bridge (bomllm/premium inline styles in content) ---- */
  --ink: var(--scb-bg);
  --ink-2: var(--scb-surface);
  --card: var(--scb-card);
  --card-2: var(--scb-card-hover);
  --brand: var(--scb-accent);
  --brand-dim: var(--scb-accent);
  --gold: var(--scb-secondary);
  --gold-dim: var(--scb-secondary);
  --gold-soft: var(--scb-accent-soft);
  --gold-line: var(--scb-accent-soft);
  --paper: var(--scb-text);
  --dim: var(--scb-muted);
  --mute: var(--scb-dim);
  --line: var(--scb-line);
  --fg: var(--scb-text);
  --fg-dim: var(--scb-muted);
  --fg-mute: var(--scb-dim);
  --bg: var(--scb-bg);
  --bg-elev: var(--scb-surface);
  --bg-card: var(--scb-card);
  --bg-hover: var(--scb-card-hover);
  --bull: #4ade80;
  --bear: #f87171;
  --news: #fbbf24;
  --font-display: var(--scb-font-display);
  --font-body: var(--scb-font-body);
  --font-mono: var(--scb-font-mono);
  --r-sm: var(--scb-r-sm);
  --r-md: var(--scb-r-md);
  --r-lg: var(--scb-r-lg);

  background: var(--scb-bg);
  color: var(--scb-text);
  font-family: var(--scb-font-body);
  font-size: var(--scb-body-size);
  line-height: var(--scb-body-lh);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  color-scheme: dark;
  min-height: 100vh;
}

.scb-manual * { box-sizing: border-box; }
.scb-manual { scroll-behavior: smooth; }
.scb-manual a { color: var(--scb-accent); }
.scb-manual a:hover { filter: brightness(1.12); }
.scb-manual img { max-width: 100%; height: auto; }
.scb-manual :focus-visible { outline: 2px solid var(--scb-accent); outline-offset: 2px; border-radius: 2px; }

/* subtle premium atmosphere (from premium.css, scoped) */
.scb-manual body.scb-manual { position: relative; }
.scb-manual::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 1200px 600px at 70% -10%, var(--scb-accent-soft), transparent 60%),
    radial-gradient(ellipse 800px 400px at 10% 100%, rgba(212, 168, 83, .04), transparent 60%);
  opacity: .5;
  z-index: 0;
}

/* ============ skip link ============ */
.scb-manual .skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--scb-accent);
  color: var(--scb-accent-contrast);
  padding: 10px 16px;
  border-radius: 0 0 var(--scb-r-sm) 0;
  z-index: 200;
  font-weight: 600;
}
.scb-manual .skip-link:focus { left: 0; }

/* ============ topnav (shared chrome) ============ */
.scb-manual .topnav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--scb-line);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  background: rgba(10, 10, 12, .92);
  z-index: 100;
}
.scb-manual .topnav .brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--scb-text); }
.scb-manual .brand-mark {
  font-family: var(--scb-font-display);
  font-weight: 600;
  font-size: 24px;
  letter-spacing: -0.02em;
  color: var(--scb-accent);
  line-height: 1.1;
}
.scb-manual .brand-sub {
  font-size: 11px;
  color: var(--scb-dim);
  text-transform: uppercase;
  letter-spacing: .15em;
  margin-top: 2px;
}
.scb-manual .nav-actions { display: flex; align-items: center; gap: 20px; font-size: 13px; color: var(--scb-muted); flex-wrap: wrap; }
.scb-manual .nav-actions a { color: inherit; text-decoration: none; transition: color .2s; min-height: 24px; }
.scb-manual .nav-actions a:hover { color: var(--scb-accent); }
.scb-manual .nav-actions .home-link { color: var(--scb-accent); font-weight: 500; }

/* tntsearch widget inside topnav (plugin markup) */
.scb-manual .tntsearch-form { display: inline-flex; align-items: center; }
.scb-manual .tntsearch-field {
  background: var(--scb-surface);
  border: 1px solid var(--scb-line-strong);
  color: var(--scb-text);
  border-radius: var(--scb-r-sm);
  padding: 6px 10px;
  font-family: var(--scb-font-body);
  font-size: 13px;
  min-width: 150px;
}
.scb-manual .tntsearch-field:focus { border-color: var(--scb-accent); outline: none; }
.scb-manual .tntsearch-clear { color: var(--scb-dim); cursor: pointer; margin-left: -24px; }
.scb-manual .tntsearch-results-inpage { display: block; margin-top: 8px; }
.scb-manual .tntsearch-results-inpage a { color: var(--scb-accent); text-decoration: none; }
.scb-manual .scb-hub-search { margin: 0 0 28px; }
.scb-manual .scb-hub-search .tntsearch-field { min-width: 280px; padding: 10px 14px; font-size: 15px; }

/* ============ breadcrumb (visual) ============ */
.scb-manual .scb-bc, .scb-manual #breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  max-width: 1200px;
  margin: 18px auto 0;
  padding: 0 24px;
  font-size: 13px;
  color: var(--scb-dim);
}
.scb-manual .scb-bc a, .scb-manual #breadcrumbs a { color: var(--scb-accent); text-decoration: none; font-weight: 500; }
.scb-manual .scb-bc a:hover, .scb-manual #breadcrumbs a:hover { text-decoration: underline; }
.scb-manual .scb-bc i, .scb-manual #breadcrumbs i { font-style: normal; color: var(--scb-dim); }
.scb-manual .scb-bc .cur, .scb-manual #breadcrumbs .cur, .scb-manual #breadcrumbs span[itemprop="name"] { color: var(--scb-muted); font-weight: 500; }

/* ============ chapter layout ============ */
.scb-manual .page.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 10; }
.scb-manual .chapter-page { display: block; padding: 24px 0 96px; }
.scb-manual .chapter-main { max-width: 760px; width: 100%; margin: 0 auto; }

/* ============ hero blocks ============ */
.scb-manual .scb-hub-hero { margin: 8px 0 32px; border-left: 3px solid var(--scb-accent); padding-left: 20px; }
.scb-manual .scb-ch-eyebrow, .scb-manual .section-eyebrow {
  font-family: var(--scb-font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .2em;
  color: var(--scb-accent);
  margin-bottom: 12px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.scb-manual .section-eyebrow::before { content: ''; width: 24px; height: 1px; background: var(--scb-accent); }
.scb-manual .scb-ch-title {
  font-family: var(--scb-font-body);
  font-weight: 600;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.25;
  margin: 0 0 8px;
  color: var(--scb-text);
}
.scb-manual .scb-ch-counter {
  font-family: var(--scb-font-mono);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--scb-dim);
  margin: 4px 0 12px;
}
.scb-manual .scb-ch-lead { font-size: 18px; color: var(--scb-muted); max-width: 720px; line-height: 1.6; margin: 0 0 16px; }
.scb-manual .scb-hub-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 16px; }

/* content hero (icafefx/warp/redhat-ai chapters carry their own header markup) */
.scb-manual .chapter-header { margin: 0 0 28px; }
.scb-manual .manual-hero-flex { display: flex; gap: 24px; align-items: flex-start; justify-content: space-between; }
.scb-manual .manual-hero-flex .hero-text { flex: 1 1 auto; min-width: 0; }
.scb-manual .manual-hero-flex .hero-qr { flex: 0 0 auto; }
.scb-manual .chapter-title { font-family: var(--scb-font-body); font-weight: 600; font-size: clamp(26px, 3.6vw, 38px); line-height: 1.25; margin: 6px 0 10px; }
.scb-manual .chapter-badge, .scb-manual .reading-time {
  display: inline-block;
  font-family: var(--scb-font-mono);
  font-size: 12px;
  color: var(--scb-muted);
  border: 1px solid var(--scb-line-strong);
  border-radius: 999px;
  padding: 4px 12px;
  margin: 0 0 10px;
  background: var(--scb-surface);
}
.scb-manual .chapter-hero { font-size: 17px; color: var(--scb-text); max-width: 720px; line-height: 1.7; margin: 0 0 8px; }
.scb-manual .hero-sub, .scb-manual .chapter-sub { font-size: 15px; color: var(--scb-muted); max-width: 720px; line-height: 1.7; margin: 0; }
.scb-manual .hero-qr img { border-radius: var(--scb-r-sm); border: 1px solid var(--scb-line-strong); }

/* bomllm chapter opener (stays in content; numerals removed at migration) */
.scb-manual .ch-opener { border-left: 3px solid var(--scb-secondary); padding-left: 20px; margin-bottom: 36px; }
.scb-manual .ch-part-label {
  font-family: var(--scb-font-mono);
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--scb-accent);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.scb-manual .ch-opener h1 { font-family: var(--scb-font-body); font-weight: 600; font-size: clamp(28px, 4vw, 40px); line-height: 1.3; margin: 0 0 6px; }
.scb-manual .ch-opener .ch-sub {
  font-family: var(--scb-font-display);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(18px, 2.4vw, 24px);
  color: var(--scb-secondary);
  margin: 0;
}

/* sword chapter opener */
.scb-manual header.op { margin: 0 0 28px; position: relative; }
.scb-manual header.op .eb { font-family: var(--scb-font-mono); font-size: 11px; letter-spacing: .2em; color: var(--scb-accent); text-transform: uppercase; margin-bottom: 10px; }
.scb-manual header.op .et { font-family: var(--scb-font-display); font-style: italic; font-size: 16px; color: var(--scb-dim); margin: 0 0 4px; }
.scb-manual header.op h1 { font-size: clamp(26px, 3.6vw, 38px); font-weight: 600; margin: 0 0 10px; }
.scb-manual header.op .ld { font-size: 16.5px; color: var(--scb-muted); max-width: 720px; line-height: 1.7; margin: 0; }

/* sword hub client search (sw-search kept as hub content feature) */
.scb-manual .sw-search-wrap { margin: 18px 0 8px; max-width: 520px; }
.scb-manual .sw-search-input { width: 100%; box-sizing: border-box; padding: 12px 16px; font-size: 16px; border-radius: var(--scb-r-md); border: 1px solid var(--scb-accent-soft); background: rgba(255, 255, 255, .05); color: var(--scb-text); font-family: inherit; }
.scb-manual .sw-search-input::placeholder { color: var(--scb-dim); }
.scb-manual .sw-search-input:focus { outline: none; border-color: var(--scb-accent); box-shadow: 0 0 0 3px var(--scb-accent-soft); }
.scb-manual .sw-nomatch { color: var(--scb-dim); font-size: 14px; }

/* sword figure captions: <b>ภาพ 1.1</b><span>…</span> */
.scb-manual .chapter-main figcaption b { color: var(--scb-accent); font-family: var(--scb-font-mono); font-size: 12px; letter-spacing: .06em; margin-right: 8px; }
.scb-manual .chapter-main figcaption span { color: var(--scb-dim); }

/* ============ prose ============ */
.scb-manual .chapter-main section, .scb-manual .chapter-main .section { margin: 0 0 44px; scroll-margin-top: 96px; }
.scb-manual .chapter-main h2 {
  font-size: 22px;
  font-weight: 600;
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--scb-line-strong);
  color: var(--scb-text);
  scroll-margin-top: 96px;
}
.scb-manual .chapter-main h2 .sec-en {
  font-family: var(--scb-font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--scb-dim);
  font-weight: 400;
  margin-left: 10px;
  text-transform: uppercase;
}
.scb-manual .chapter-main h3 { font-size: 19px; font-weight: 600; margin: 28px 0 12px; color: var(--scb-text); scroll-margin-top: 96px; }
.scb-manual .chapter-main h4 { font-size: 16.5px; font-weight: 600; margin: 22px 0 10px; }
.scb-manual .chapter-main p { margin: 0 0 16px; }
.scb-manual .chapter-main ul, .scb-manual .chapter-main ol { margin: 0 0 16px; padding-left: 24px; }
.scb-manual .chapter-main li { margin: 6px 0; }
.scb-manual .chapter-main strong { color: var(--scb-text); }
.scb-manual .chapter-main code {
  font-family: var(--scb-font-mono);
  font-size: 13.5px;
  background: var(--scb-surface);
  border: 1px solid var(--scb-line);
  border-radius: 4px;
  padding: 1px 6px;
  color: var(--scb-accent);
  word-break: break-word;
}
.scb-manual .chapter-main pre {
  font-family: var(--scb-font-mono);
  font-size: 13px;
  line-height: 1.7;
  background: var(--scb-surface);
  border: 1px solid var(--scb-line);
  border-radius: var(--scb-r-md);
  padding: 16px 18px;
  overflow-x: auto;
  margin: 0 0 12px;
}
.scb-manual .chapter-main pre code { background: none; border: none; padding: 0; color: var(--scb-text); }
.scb-manual .chapter-main blockquote {
  border-left: 3px solid var(--scb-accent);
  padding-left: 18px;
  margin: 16px 0;
  color: var(--scb-muted);
  font-style: italic;
}
.scb-manual .chapter-main figure, .scb-manual .chapter-main .scb-figure { margin: 20px 0; }
.scb-manual .chapter-main figcaption, .scb-manual .chapter-main .rh-caption, .scb-manual .chapter-main .ra-cap {
  font-size: 13px;
  color: var(--scb-dim);
  margin-top: 8px;
  text-align: center;
}
.scb-manual .chapter-main hr { border: none; border-top: 1px solid var(--scb-line); margin: 28px 0; }

/* tables: block-scroll pattern (no page overflow on mobile) */
.scb-manual .chapter-main table {
  display: block;
  overflow-x: auto;
  max-width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
  margin: 0 0 18px;
  white-space: nowrap;
}
.scb-manual .chapter-main table.glossary, .scb-manual .chapter-main table[style*="width:100%"] { white-space: normal; }
.scb-manual .chapter-main th {
  font-family: var(--scb-font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--scb-accent);
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--scb-accent-soft);
  text-transform: uppercase;
}
.scb-manual .chapter-main td { padding: 9px 12px; border-bottom: 1px solid var(--scb-line); color: var(--scb-muted); vertical-align: top; }
.scb-manual .chapter-main td.g-term { color: var(--scb-text); white-space: nowrap; }
.scb-manual .chapter-main td strong { color: var(--scb-text); }
.scb-manual .scb-table-scroll { overflow-x: auto; }

/* ============ jump nav (in-page TOC kept from content) ============ */
.scb-manual .jump-nav {
  background: var(--scb-card);
  border: 1px solid var(--scb-line);
  border-radius: var(--scb-r-md);
  padding: 16px 18px;
  margin: 0 0 28px;
}
.scb-manual .jump-nav-label, .scb-manual .jump-nav h4 {
  font-family: var(--scb-font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--scb-accent);
  text-transform: uppercase;
  margin: 0 0 8px;
}
.scb-manual .jump-nav .toc { list-style: none; display: flex; flex-direction: column; gap: 4px; margin: 0; padding: 0; }
.scb-manual .jump-nav .toc a {
  display: block;
  padding: 4px 0 4px 14px;
  color: var(--scb-muted);
  text-decoration: none;
  border-left: 2px solid var(--scb-line);
  transition: all .2s;
}
.scb-manual .jump-nav .toc a:hover { color: var(--scb-accent); border-left-color: var(--scb-accent); }

/* ============ TL;DR ============ */
.scb-manual .tldr-card {
  background: var(--scb-card);
  border: 1px solid var(--scb-line);
  border-left: 3px solid var(--scb-accent);
  border-radius: var(--scb-r-md);
  padding: 20px 24px;
  margin: 24px 0;
}
.scb-manual .tldr-list {
  list-style: none;
  background: var(--scb-card);
  border: 1px solid var(--scb-line);
  border-left: 3px solid var(--scb-accent);
  border-radius: var(--scb-r-md);
  padding: 20px 24px;
  margin: 24px 0;
}
.scb-manual .tldr-list li { position: relative; padding: 8px 0 8px 24px; color: var(--scb-text); font-size: 16px; }
.scb-manual .tldr-list li::before { content: '\2192'; position: absolute; left: 0; top: 8px; color: var(--scb-accent); font-weight: 600; }
.scb-manual .tldr-list li + li { border-top: 1px solid var(--scb-line); }

/* ============ steps ============ */
.scb-manual .steps { counter-reset: step; list-style: none; margin: 24px 0; padding: 0; }
.scb-manual .steps li {
  counter-increment: step;
  position: relative;
  padding: 14px 0 14px 56px;
  color: var(--scb-muted);
  border-bottom: 1px solid var(--scb-line);
}
.scb-manual .steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 14px;
  font-family: var(--scb-font-mono);
  font-size: 13px;
  color: var(--scb-accent);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--scb-accent-soft);
  border-radius: 50%;
  background: color-mix(in srgb, var(--scb-accent) 10%, transparent);
}
.scb-manual .steps li:last-child { border-bottom: none; }

/* v21 rh-step */
.scb-manual .rh-step { display: flex; gap: 14px; margin: 14px 0; }
.scb-manual .rh-step .rh-step__n {
  flex: 0 0 auto;
  font-family: var(--scb-font-mono);
  color: var(--scb-accent);
  border: 1px solid var(--scb-accent-soft);
  border-radius: 50%;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
}

/* ============ callouts ============ */
.scb-manual .pro-tip {
  position: relative;
  background: linear-gradient(135deg, color-mix(in srgb, var(--scb-accent) 10%, transparent), transparent);
  border: 1px solid var(--scb-accent-soft);
  border-radius: var(--scb-r-lg);
  padding: 26px 30px;
  margin: 30px 0;
}
.scb-manual .pro-tip::before {
  content: '\1F4A1\00A0\00A0PRO TIP';
  display: inline-block;
  font-family: var(--scb-font-mono);
  font-size: 11px;
  color: var(--scb-accent);
  letter-spacing: .2em;
  margin-bottom: 12px;
  font-weight: 600;
}
.scb-manual .pro-tip blockquote {
  font-family: var(--scb-font-display);
  font-size: 19px;
  line-height: 1.5;
  color: var(--scb-text);
  font-style: italic;
  border-left: 3px solid var(--scb-accent);
  padding-left: 18px;
  margin: 12px 0;
}
.scb-manual .pro-tip blockquote strong { font-style: normal; }

/* markdown-notices plugin divs */
.scb-manual .notice { border-radius: var(--scb-r-md); padding: 14px 18px; margin: 16px 0; border: 1px solid var(--scb-line-strong); background: var(--scb-surface); }
.scb-manual .notice.tip { border-left: 3px solid #4ade80; }
.scb-manual .notice.warning, .scb-manual .notice.warn { border-left: 3px solid #f87171; }
.scb-manual .notice.note, .scb-manual .notice.info { border-left: 3px solid var(--scb-accent); }

/* v21 rh-callout variants */
.scb-manual .rh-callout { border-radius: var(--scb-r-md); padding: 14px 18px; margin: 16px 0; background: var(--scb-surface); border: 1px solid var(--scb-line-strong); }
.scb-manual .rh-callout--term { border-left: 3px solid var(--scb-secondary); }
.scb-manual .rh-callout--tip { border-left: 3px solid #4ade80; }
.scb-manual .rh-callout--warn, .scb-manual .rh-callout--honest, .scb-manual .rh-callout--risk { border-left: 3px solid #f87171; }

/* ============ clips + video ============ */
.scb-manual .clip-wrap, .scb-manual .video-wrapper, .scb-manual .yt-wrap {
  margin: 22px 0;
  background: var(--scb-card);
  border: 1px solid var(--scb-line);
  border-radius: var(--scb-r-md);
  overflow: hidden;
}
.scb-manual .clip-wrap video, .scb-manual .video-wrapper video { display: block; width: 100%; }
.scb-manual .video-iframe-container, .scb-manual .video-embed { position: relative; padding-top: 56.25%; }
.scb-manual .video-iframe-container iframe, .scb-manual .video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.scb-manual .clip-note { font-size: 13px; color: var(--scb-dim); padding: 10px 14px; border-top: 1px solid var(--scb-line); }
.scb-manual .manual-audio-tldr { margin: 18px 0; font-size: 14px; color: var(--scb-muted); }
.scb-manual .manual-audio-tldr audio { width: 100%; }

/* rh-zoom (v21/icafefx zoomable screenshots; JS ships with theme) */
.scb-manual .rh-zoomable { cursor: zoom-in; transition: transform .18s ease; }
.scb-manual .rh-zoomable.rh-zoomed { cursor: zoom-out; }
.scb-manual .rh-zoom-overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, .88); z-index: 300; display: flex; align-items: center; justify-content: center; padding: 24px; cursor: zoom-out; }
.scb-manual .rh-zoom-overlay img { max-width: 100%; max-height: 100%; }
.scb-manual .manual-screen, .scb-manual .ra-shot { border-radius: var(--scb-r-sm); border: 1px solid var(--scb-line-strong); }

/* ============ FAQ ============ */
.scb-manual .faq-item, .scb-manual details.faq-item {
  border: 1px solid var(--scb-line);
  border-radius: var(--scb-r-md);
  background: var(--scb-card);
  margin-bottom: 12px;
}
.scb-manual .faq-item summary { cursor: pointer; padding: 14px 18px; font-weight: 500; color: var(--scb-text); list-style: none; }
.scb-manual .faq-item[open] summary { border-bottom: 1px solid var(--scb-line-strong); color: var(--scb-accent); }
.scb-manual .faq-item .faq-body, .scb-manual .faq-item > p, .scb-manual .faq-item > div:not(summary) { padding: 12px 18px; color: var(--scb-muted); }
.scb-manual .faq-question { font-weight: 600; color: var(--scb-text); }

/* ============ see also / links ============ */
.scb-manual .see-also {
  border: 1px solid var(--scb-line);
  border-radius: var(--scb-r-md);
  padding: 16px 20px;
  margin: 26px 0;
  background: var(--scb-surface);
}
.scb-manual .see-also h4, .scb-manual .foot-links h4 {
  font-family: var(--scb-font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--scb-accent);
  margin: 0 0 10px;
}
.scb-manual .see-also ul, .scb-manual .foot-links ul { list-style: none; margin: 0; padding: 0; }
.scb-manual .see-also li, .scb-manual .foot-links li { margin: 6px 0; }
.scb-manual .ext-links { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin-top: 14px; }
.scb-manual .ext-links a {
  border: 1px solid var(--scb-line);
  border-radius: var(--scb-r-md);
  padding: 14px 18px;
  text-decoration: none;
  color: var(--scb-text);
  background: var(--scb-card);
  font-size: 15px;
}
.scb-manual .ext-links a:hover { border-color: var(--scb-accent); }
.scb-manual .ext-links .x-host { display: block; font-family: var(--scb-font-mono); font-size: 11px; color: var(--scb-dim); letter-spacing: .1em; margin-top: 4px; }

/* ============ social share ============ */
.scb-manual .social-share { display: flex; align-items: center; gap: 12px; margin: 24px 0 0; font-size: 13.5px; color: var(--scb-dim); }
.scb-manual .social-share .share-label { font-family: var(--scb-font-mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; }
.scb-manual .social-share a { color: var(--scb-muted); text-decoration: none; border: 1px solid var(--scb-line); border-radius: 999px; padding: 6px 14px; }
.scb-manual .social-share a:hover { color: var(--scb-accent); border-color: var(--scb-accent); }

/* ============ chapnav (prev / hub / next) ============ */
.scb-manual .scb-chapnav, .scb-manual .sw-chapnav { margin: 36px 0 8px; }
.scb-manual .scb-chapnav-row, .scb-manual .sw-chapnav-row { display: flex; justify-content: space-between; align-items: stretch; gap: 12px; flex-wrap: wrap; }
.scb-manual .scb-chapnav-prev, .scb-manual .scb-chapnav-next, .scb-manual .sw-chapnav-prev, .scb-manual .sw-chapnav-next { flex: 1 1 220px; }
.scb-manual .scb-chapnav-hub, .scb-manual .sw-chapnav-hub { flex: 0 0 auto; display: flex; align-items: center; }
.scb-manual .scb-chapnav-prev a, .scb-manual .scb-chapnav-next a, .scb-manual .scb-chapnav-end, .scb-manual .sw-chapnav-prev a, .scb-manual .sw-chapnav-next a {
  display: block;
  padding: 14px 16px;
  border-radius: var(--scb-r-md);
  border: 1px solid var(--scb-accent-soft);
  background: rgba(255, 255, 255, .03);
  text-decoration: none;
  color: inherit;
  transition: border-color .15s;
}
.scb-manual .scb-chapnav-next a, .scb-manual .sw-chapnav-next a { text-align: right; }
.scb-manual .scb-chapnav-prev a:hover, .scb-manual .scb-chapnav-next a:hover, .scb-manual .scb-chapnav-end:hover, .scb-manual .sw-chapnav-prev a:hover, .scb-manual .sw-chapnav-next a:hover { border-color: var(--scb-accent); }
.scb-manual .scb-chapnav-label, .scb-manual .sw-chapnav-label { display: block; font-size: 12px; color: var(--scb-accent); letter-spacing: 1px; margin-bottom: 4px; font-weight: 600; font-family: var(--scb-font-mono); }
.scb-manual .scb-chapnav-title, .scb-manual .sw-chapnav-title { display: block; font-size: 15px; color: var(--scb-text); font-weight: 600; }
.scb-manual .scb-chapnav-empty, .scb-manual .sw-chapnav-empty {
  display: block;
  padding: 14px 16px;
  border-radius: var(--scb-r-md);
  border: 1px dashed var(--scb-line-strong);
  color: var(--scb-dim);
  font-size: 14px;
  text-align: center;
}
.scb-manual .scb-chapnav-hub a, .scb-manual .sw-chapnav-hub a {
  display: inline-block;
  padding: 12px 18px;
  border-radius: var(--scb-r-md);
  border: 1px solid var(--scb-accent-soft);
  color: var(--scb-accent);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  background: color-mix(in srgb, var(--scb-accent) 8%, transparent);
}
.scb-manual .scb-chapnav-all, .scb-manual .sw-chapnav-all { margin-top: 14px; border: 1px solid var(--scb-line); border-radius: var(--scb-r-md); padding: 0; }
.scb-manual .scb-chapnav-all summary, .scb-manual .sw-chapnav-all summary { cursor: pointer; padding: 14px 16px; font-size: 14px; color: var(--scb-accent); font-weight: 600; list-style: none; }
.scb-manual .scb-chapnav-all summary::-webkit-details-marker, .scb-manual .sw-chapnav-all summary::-webkit-details-marker { display: none; }
.scb-manual .scb-chapnav-list, .scb-manual .sw-chapnav-list {
  margin: 0;
  padding: 8px 16px 16px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 6px 18px;
  list-style: none;
}
.scb-manual .scb-chapnav-list a, .scb-manual .sw-chapnav-list a { display: flex; gap: 8px; align-items: baseline; padding: 6px 4px; text-decoration: none; color: var(--scb-muted); font-size: 14px; border-radius: var(--scb-r-sm); }
.scb-manual .scb-chapnav-list a:hover, .scb-manual .sw-chapnav-list a:hover { color: var(--scb-text); }
.scb-manual .scb-chapnav-list .n, .scb-manual .sw-chapnav-list .n { color: var(--scb-accent); font-weight: 600; flex: 0 0 26px; font-family: var(--scb-font-mono); font-size: 12px; }
.scb-manual .scb-chapnav-list a.on, .scb-manual .sw-chapnav-list a.on { color: var(--scb-text); font-weight: 700; }

/* bomllm prev-next (legacy content styling, blocks removed at migration) */
.scb-manual .prev-next { display: flex; justify-content: space-between; gap: 16px; margin-top: 48px; }
.scb-manual .prev-next a { flex: 1; text-decoration: none; border: 1px solid var(--scb-line); border-radius: var(--scb-r-md); padding: 14px 18px; background: var(--scb-card); }
.scb-manual .prev-next .pn-label { display: block; font-family: var(--scb-font-mono); font-size: 11px; letter-spacing: .16em; color: var(--scb-dim); margin-bottom: 4px; }
.scb-manual .prev-next .pn-title { color: var(--scb-text); font-size: 15px; }

/* ============ buttons / CTA ============ */
.scb-manual .scb-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: var(--scb-target);
  padding: 10px 22px;
  border-radius: var(--scb-r-md);
  border: 1px solid var(--scb-line-strong);
  color: var(--scb-text);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  background: var(--scb-card);
}
.scb-manual .scb-btn:hover { border-color: var(--scb-accent); color: var(--scb-accent); }
.scb-manual .scb-btn-accent { background: var(--scb-accent); color: var(--scb-accent-contrast); border-color: var(--scb-accent); }
.scb-manual .scb-btn-accent:hover { color: var(--scb-accent-contrast); filter: brightness(1.08); }
.scb-manual .download-cta, .scb-manual .scb-cta { display: flex; gap: 14px; flex-wrap: wrap; margin: 28px 0; }
.scb-manual .cta-buttons { display: flex; gap: 14px; flex-wrap: wrap; margin: 16px 0; }

/* ============ hub grid / cards ============ */
.scb-manual .scb-toc-grid, .scb-manual .chapters-grid, .scb-manual .ch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
  margin: 24px 0 44px;
}
.scb-manual .scb-card, .scb-manual .chapter-card, .scb-manual .ch-card, .scb-manual .scb-manual .toc-a {
  position: relative;
  display: block;
  background: var(--scb-card);
  border: 1px solid var(--scb-line);
  border-radius: var(--scb-r-lg);
  padding: 26px 28px;
  text-decoration: none;
  color: var(--scb-text);
  transition: border-color .25s, transform .25s;
  overflow: hidden;
}
.scb-manual .scb-card::after, .scb-manual .chapter-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, transparent 60%, color-mix(in srgb, var(--scb-accent) 10%, transparent));
  opacity: 0;
  transition: opacity .25s;
  pointer-events: none;
}
.scb-manual .scb-card:hover, .scb-manual .chapter-card:hover, .scb-manual .ch-card:hover { border-color: var(--scb-accent); transform: translateY(-2px); }
.scb-manual .scb-card:hover::after, .scb-manual .chapter-card:hover::after { opacity: 1; }
.scb-manual .chapter-number { font-family: var(--scb-font-mono); font-size: 12px; color: var(--scb-accent); letter-spacing: .1em; margin-bottom: 10px; }
.scb-manual .scb-card .chapter-title, .scb-manual .chapter-card .chapter-title { font-family: var(--scb-font-body); font-size: 19px; font-weight: 600; margin-bottom: 8px; line-height: 1.35; }
.scb-manual .chapter-desc, .scb-manual .scb-card .cc-en { font-size: 13.5px; color: var(--scb-muted); line-height: 1.55; }
.scb-manual .chapter-arrow { display: inline-flex; align-items: center; gap: 6px; margin-top: 14px; font-size: 11.5px; color: var(--scb-accent); text-transform: uppercase; letter-spacing: .15em; font-family: var(--scb-font-mono); }
.scb-manual .cc-part { color: var(--scb-secondary); }
.scb-manual .part-block { margin: 0 0 36px; }
.scb-manual .part-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 14px; }
.scb-manual .part-head h2 { font-family: var(--scb-font-display); font-weight: 500; font-size: 28px; color: var(--scb-accent); margin: 0; border: none; padding: 0; }
.scb-manual .part-head .part-th { font-size: 17px; color: var(--scb-text); font-weight: 600; }
.scb-manual .scb-hub-intro { margin: 0 0 28px; }
.scb-manual .scb-toc-extra { margin: 12px 0 32px; }

/* warp hub video-preview card variant */
.scb-manual .scb-card--thumb { padding: 0; }
.scb-manual .scb-card--thumb .card-video-wrap { position: relative; padding-top: 56.25%; overflow: hidden; background: var(--scb-surface); }
.scb-manual .scb-card--thumb .card-video-wrap img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.scb-manual .scb-card--thumb .card-video-emoji { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 40px; }
.scb-manual .scb-card--thumb .card-body { padding: 18px 20px; }
.scb-manual .card-video-wrap video { width: 100%; display: block; }

/* bomllm hub video facade (click-to-play) + cover hero */
.scb-manual .video-device-frame { cursor: pointer; max-width: 720px; margin: 0 auto 22px; border: 1px solid var(--scb-accent-soft); border-radius: var(--scb-r-lg); overflow: hidden; background: #000; }
.scb-manual .video-device-frame .ratio-box { position: relative; padding-top: 56.25%; }
.scb-manual .video-device-frame .video-thumb { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.scb-manual .video-device-frame .play-overlay { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; background: rgba(0, 0, 0, .35); transition: background .2s; }
.scb-manual .video-device-frame:hover .play-overlay { background: rgba(0, 0, 0, .15); }
.scb-manual .video-device-frame .play-btn { display: inline-flex; align-items: center; justify-content: center; width: 72px; height: 72px; border-radius: 50%; background: var(--scb-accent); color: var(--scb-accent-contrast); font-size: 26px; }
.scb-manual .video-device-frame .ratio-box iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.scb-manual .hero { margin: 0 0 28px; border: 1px solid var(--scb-line); border-radius: var(--scb-r-lg); overflow: hidden; background: var(--scb-surface); }
.scb-manual .hero img { display: block; width: 100%; height: auto; }

/* ============ cost receipt (bomllm) ============ */
.scb-manual .cost-receipt {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  align-items: center;
  border: 1px solid var(--scb-accent-soft);
  border-radius: var(--scb-r-md);
  background: var(--scb-card);
  padding: 16px 22px;
  margin: 0 0 40px;
  font-size: 15px;
  color: var(--scb-muted);
}
.scb-manual .cost-receipt .big { font-family: var(--scb-font-mono); color: var(--scb-secondary); font-size: 18px; }
.scb-manual .cost-receipt .tag { font-family: var(--scb-font-mono); font-size: 11px; letter-spacing: .14em; color: var(--scb-accent); }

/* ============ misc content components ============ */
.scb-manual .pending {
  border: 1px dashed var(--scb-accent-soft);
  border-radius: var(--scb-r-md);
  background: var(--scb-surface);
  padding: 24px 22px;
  color: var(--scb-muted);
  font-family: var(--scb-font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  text-align: center;
}
.scb-manual .disclaimer { font-size: 13.5px; color: var(--scb-dim); border-top: 1px solid var(--scb-line); margin-top: 32px; padding-top: 16px; }
.scb-manual .about-author { display: flex; gap: 16px; align-items: center; margin: 26px 0; }
.scb-manual .lang-switcher { margin: 0 0 16px; font-size: 13px; }
.scb-manual .lang-switcher .active { color: var(--scb-accent); font-weight: 700; }
.scb-manual .lang-switcher a { color: var(--scb-dim); text-decoration: none; }
.scb-manual #progress-bar { position: fixed; top: 0; left: 0; height: 2px; width: 0; background: var(--scb-accent); z-index: 99; }

/* ============ footer ============ */
.scb-manual .site-footer {
  background: var(--scb-bg);
  border-top: 1px solid var(--scb-line-strong);
  padding: 22px 24px 26px;
  color: var(--scb-dim);
  font-size: 13px;
  text-align: center;
  max-width: 1200px;
  margin: 0 auto;
}

/* ============ responsive ============ */
@media (max-width: 1023px) {
  .scb-manual .chapter-page { grid-template-columns: 1fr; gap: 0; }
}
@media (max-width: 768px) {
  .scb-manual { font-size: 16px; }
  .scb-manual .topnav { gap: 12px; padding: 10px 16px; }
  .scb-manual .nav-actions { gap: 12px; font-size: 12.5px; }
  .scb-manual .scb-bc, .scb-manual #breadcrumbs { padding: 0 16px; }
  .scb-manual .page.container { padding: 0 16px; }
  .scb-manual .manual-hero-flex { flex-direction: column-reverse; }
  .scb-manual .manual-hero-flex .hero-qr { align-self: flex-end; }
  .scb-manual .scb-chapnav-next a, .scb-manual .sw-chapnav-next a { text-align: left; }
  .scb-manual .scb-chapnav-row, .scb-manual .sw-chapnav-row { flex-direction: column; }
  .scb-manual .prev-next { flex-direction: column; }
  .scb-manual .prev-next a.next { text-align: left; }
  .scb-manual .scb-toc-grid, .scb-manual .chapters-grid, .scb-manual .ch-grid { grid-template-columns: 1fr; }
  .scb-manual .jump-nav { padding: 12px 14px; }
}
@media (max-width: 400px) {
  .scb-manual .nav-actions a[href*="line.me"] { display: none; }
  .scb-manual .brand-mark { font-size: 20px; }
}

/* ============ print ============ */
@media print {
  .scb-manual .topnav, .scb-manual .scb-chapnav, .scb-manual .social-share, .scb-manual .site-footer, .scb-manual .jump-nav { display: none; }
  .scb-manual { background: #fff; color: #111; }
}

/* ============ rh-zoom dialog (ported from /redhat/manual/assets/rh-zoom.css) ============ */
.scb-manual .rh-zoomable { cursor: zoom-in; -webkit-tap-highlight-color: transparent; }
.scb-manual dialog.rh-zoom { border: 0; padding: 0; background: transparent; max-width: none; max-height: none; width: 100vw; height: 100vh; margin: 0; box-sizing: border-box; }
.scb-manual dialog.rh-zoom::backdrop { background: rgba(0, 0, 0, .92); }
.scb-manual dialog.rh-zoom[open] { display: flex; align-items: center; justify-content: center; }
.scb-manual .rh-zoom__img { max-width: 96vw; max-height: 92vh; width: auto; height: auto; object-fit: contain; cursor: zoom-out; display: block; border-radius: 4px; user-select: none; }
.scb-manual .rh-zoom__hint { position: fixed; left: 50%; bottom: 18px; transform: translateX(-50%); color: #fff; background: rgba(0, 0, 0, .45); padding: 6px 14px; border-radius: 999px; pointer-events: none; opacity: .85; font: 600 13px/1.4 "IBM Plex Sans Thai", system-ui, sans-serif; }

/* ============ v21 chapter sidebar TOC (in-page sections) ============ */
.scb-manual aside.chapter-sidebar { background: var(--scb-card); border: 1px solid var(--scb-line); border-radius: var(--scb-r-md); padding: 14px 18px; margin: 0 0 24px; }
.scb-manual aside.chapter-sidebar h4 { font-family: var(--scb-font-mono); font-size: 11px; letter-spacing: .18em; color: var(--scb-accent); text-transform: uppercase; margin: 0 0 8px; }
.scb-manual aside.chapter-sidebar ul.toc { list-style: none; display: flex; flex-direction: column; gap: 4px; margin: 0; padding: 0; }
.scb-manual aside.chapter-sidebar .toc a { display: block; padding: 4px 0 4px 14px; color: var(--scb-muted); text-decoration: none; border-left: 2px solid var(--scb-line); }
.scb-manual aside.chapter-sidebar .toc a:hover, .scb-manual aside.chapter-sidebar .toc a.active { color: var(--scb-accent); border-left-color: var(--scb-accent); }
