/* ============================================================
   /manual/ — the complete user guide, rendered inside the site
   shell (includes/header.php + footer.php).
   ------------------------------------------------------------
   Colours, radii, shadows and fonts all come from the tokens in
   assets/css/style.css, so both themes and any future palette
   change arrive here for free. Every rule is scoped under
   .manual-head / .manual / the viewer, so nothing in this file
   can reach the nav pill, the footer or another page.
   Icons use the mfa-* prefix: a renamed copy of Font Awesome
   (fa/css/manual.min.css) that cannot collide with the site's
   icons.css, which owns the fa-* names.
   ============================================================ */

/* ── page head ─────────────────────────────────────────────── */
.manual-head{padding-bottom:36px;}
.manual-head::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(60% 90% at 18% 0%,rgba(59,130,246,.16) 0%,transparent 60%),
    radial-gradient(40% 70% at 85% 10%,rgba(57,197,207,.08) 0%,transparent 60%);
}
.manual-head .wrap{position:relative;z-index:1;}
.manual-head h1{font-size:clamp(2.1rem,4.8vw,3.5rem);margin-bottom:14px;}
.manual-head .lead{margin-bottom:22px;}
.manual-meta{display:flex;flex-wrap:wrap;gap:8px;}
.manual-meta span{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 13px;border-radius:100px;font-size:12.5px;color:var(--text);
  background:var(--bg-1);border:1px solid var(--border);
}
.manual-meta i{color:var(--accent);font-size:11px;}

/* ── layout ────────────────────────────────────────────────── */
.manual-wrap{max-width:1340px;}
.manual{
  display:grid;grid-template-columns:288px minmax(0,1fr);gap:44px;align-items:start;
  -webkit-user-select:none;user-select:none;
}
.manual input,.manual textarea{-webkit-user-select:text;user-select:text;}
.manual [hidden]{display:none!important;}
.manual__body{min-width:0;}

/* ── sidebar: a glass panel, same material as the nav pill ─── */
.manual__side{
  position:sticky;top:calc(var(--nav-h) + 14px);
  max-height:calc(100vh - var(--nav-h) - 28px);
  display:flex;flex-direction:column;
  background:var(--bg-glass);
  backdrop-filter:blur(20px) saturate(165%);
  -webkit-backdrop-filter:blur(20px) saturate(165%);
  border:1px solid var(--border-active);border-radius:var(--radius-lg);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.07);
  overflow:hidden;
}
[data-theme="light"] .manual__side{box-shadow:0 10px 30px rgba(20,32,60,.10),inset 0 1px 0 rgba(255,255,255,.9);}
/* the same blue wash the support form card carries */
.manual__side::before{
  content:'';position:absolute;top:0;left:0;right:0;height:180px;pointer-events:none;
  background:radial-gradient(120% 100% at 50% 0%,rgba(59,130,246,.14) 0%,transparent 70%);
}
.manual__side > *{position:relative;}

.side-head{display:flex;align-items:center;gap:12px;padding:18px 18px 12px;}
.side-mark{
  width:40px;height:40px;flex:none;border-radius:12px;display:grid;place-items:center;
  background:var(--brand);color:#fff;font-size:15px;
  box-shadow:0 6px 18px rgba(37,99,235,.38);
}
.side-title{font-weight:700;color:var(--text-bright);font-size:14.5px;line-height:1.15;letter-spacing:-.01em;}
.side-sub{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-dim);margin-top:4px;}
.side-read{margin-left:auto;text-align:right;font-family:var(--mono);font-size:11px;color:var(--text-dim);line-height:1.3;white-space:nowrap;}
.side-read b{display:block;font-size:15px;font-weight:600;color:var(--accent);font-variant-numeric:tabular-nums;}

.search{position:relative;margin:2px 14px 10px;}
.search label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}
.search-ico{position:absolute;left:13px;top:50%;translate:0 -50%;color:var(--text-dim);font-size:12px;pointer-events:none;}
.search input{
  width:100%;height:38px;padding:0 62px 0 35px;
  border:1px solid var(--border);border-radius:100px;
  background:var(--bg-1);color:var(--text-bright);font-size:13px;
  transition:border-color var(--transition),box-shadow var(--transition);
}
.search input::placeholder{color:var(--text-dim);}
.search input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow);}
.search input::-webkit-search-cancel-button{-webkit-appearance:none;}
.search kbd{
  position:absolute;right:10px;top:50%;translate:0 -50%;pointer-events:none;
  font:600 10px/1 var(--mono);color:var(--text-dim);letter-spacing:.04em;
  padding:5px 7px;border:1px solid var(--border);border-radius:6px;background:var(--bg-2);
}

.manual__side nav{
  flex:1;min-height:0;overflow-y:auto;padding:0 10px 10px;
  scrollbar-width:thin;scrollbar-color:var(--bg-3) transparent;
}
.manual__side nav::-webkit-scrollbar{width:6px;}
.manual__side nav::-webkit-scrollbar-track{background:transparent;}
.manual__side nav::-webkit-scrollbar-thumb{background:var(--bg-3);border:none;border-radius:6px;}
.manual__side nav::-webkit-scrollbar-thumb:hover{background:var(--border-strong);}

.nav-group{
  display:flex;align-items:center;gap:9px;margin:14px 8px 6px;
  font-size:10.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--text-dim);
  transition:color var(--transition);
}
.nav-group::after{content:'';flex:1;height:1px;background:var(--border);order:2;}
.nav-group.here{color:var(--accent);}
.gcount{
  order:3;min-width:19px;height:19px;padding:0 6px;border-radius:100px;
  display:grid;place-items:center;font:600 10px/1 var(--mono);letter-spacing:0;
  color:var(--text-dim);background:var(--bg-2);border:1px solid var(--border);
  transition:color var(--transition),border-color var(--transition),background var(--transition);
}
.nav-group.here .gcount{color:var(--accent);border-color:var(--accent);background:var(--accent-glow);}

.manual__side nav a{
  display:grid;grid-template-columns:20px 26px minmax(0,1fr);align-items:center;gap:9px;
  padding:6px 10px 6px 9px;margin:1px 0;border-radius:11px;
  font-size:13.2px;line-height:1.3;color:var(--text-dim);
  border:1px solid transparent;position:relative;
  transition:color var(--transition),background var(--transition),border-color var(--transition);
}
.manual__side nav a span{font-family:var(--mono);font-size:10.5px;letter-spacing:.04em;color:var(--text-dim);opacity:.75;font-variant-numeric:tabular-nums;}
.nav-ico{
  width:26px;height:26px;border-radius:8px;display:grid;place-items:center;font-size:11px;
  background:var(--bg-2);border:1px solid var(--border);color:var(--text-dim);
  transition:background var(--transition),color var(--transition),border-color var(--transition),box-shadow var(--transition);
}
.manual__side nav a:hover{color:var(--text-bright);background:var(--bg-2);}
.manual__side nav a:hover .nav-ico{color:var(--text-bright);border-color:var(--border-active);}
.manual__side nav a.active{
  color:var(--text-bright);background:var(--accent-glow);
  border-color:color-mix(in oklab,var(--accent) 38%,transparent);
}
.manual__side nav a.active::before{
  content:'';position:absolute;left:-11px;top:9px;bottom:9px;width:3px;
  border-radius:0 3px 3px 0;background:var(--accent);
}
.manual__side nav a.active .nav-ico{background:var(--brand);color:#fff;border-color:transparent;box-shadow:0 4px 12px rgba(37,99,235,.38);}
.manual__side nav a.active span{color:var(--accent);opacity:1;}
.manual__side nav a.seen:not(.active) span{color:var(--green);opacity:.9;}

.nav-foot{
  display:flex;align-items:center;gap:10px;padding:12px 14px 14px;
  border-top:1px solid var(--border);
  font-family:var(--mono);font-size:10.5px;letter-spacing:.04em;line-height:1.5;color:var(--text-dim);
}
.nav-foot .btn{margin-left:auto;padding:8px 13px;font-size:12.5px;}

/* ── floating "Chapters" button + scrim (narrow screens) ────── */
#menu{
  display:none;position:fixed;right:18px;bottom:18px;z-index:960;
  height:46px;padding:0 18px 0 15px;border-radius:100px;gap:9px;align-items:center;
  background:var(--brand);color:#fff;font-weight:600;font-size:13.5px;cursor:pointer;
  box-shadow:0 10px 30px rgba(37,99,235,.42);
  transition:transform .18s cubic-bezier(.4,0,.2,1);
}
#menu:hover{transform:translateY(-2px);}
#menu .mfa-xmark{display:none;}
body.menu-open #menu .mfa-bars{display:none;}
body.menu-open #menu .mfa-xmark{display:inline-block;}
.side-scrim{
  position:fixed;inset:0;z-index:940;background:rgba(0,0,0,.55);
  backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px);
  opacity:0;pointer-events:none;transition:opacity var(--transition);
}
body.menu-open .side-scrim{opacity:1;pointer-events:auto;}

@media (max-width:1000px){
  .manual{grid-template-columns:1fr;gap:0;}
  #menu{display:inline-flex;}
  .manual__side{
    position:fixed;top:0;left:0;bottom:0;width:min(88vw,350px);max-height:none;
    border-radius:0 var(--radius-lg) var(--radius-lg) 0;border-left:none;z-index:950;
    transform:translateX(-104%);transition:transform .32s cubic-bezier(.4,0,.2,1);
  }
  body.menu-open .manual__side{transform:none;}
}

/* ── reading progress: a hairline across the very top ──────── */
#progress{
  position:fixed;top:0;left:0;height:3px;width:0;z-index:1000;pointer-events:none;
  background:var(--brand);box-shadow:0 0 12px rgba(59,130,246,.55);
}

/* ── chapters ──────────────────────────────────────────────── */
#searchStatus{font-family:var(--mono);font-size:12px;color:var(--text-dim);margin-bottom:16px;}
#searchStatus:empty{display:none;}
.empty{
  padding:40px 24px;text-align:center;margin-bottom:24px;
  border:1px dashed var(--border-active);border-radius:var(--radius);background:var(--bg-1);
}
.empty h2{font-size:1.3rem;margin-bottom:6px;}
.empty p{color:var(--text-dim);margin-bottom:16px;}
#clearSearch{
  display:inline-flex;align-items:center;gap:9px;padding:10px 18px;border-radius:100px;cursor:pointer;
  border:1px solid var(--border-active);color:var(--text-bright);font-weight:600;font-size:13.5px;
  transition:border-color var(--transition),background var(--transition);
}
#clearSearch:hover{background:var(--bg-2);border-color:var(--border-strong);}

.chapter{scroll-margin-top:calc(var(--nav-h) + 22px);padding-bottom:46px;margin-bottom:46px;border-bottom:1px solid var(--border);}
.chapter:last-of-type{border-bottom:none;padding-bottom:0;}
.chapter-top{display:flex;align-items:center;flex-wrap:wrap;gap:12px 16px;margin-bottom:10px;}
.ch-ico{
  width:50px;height:50px;flex:none;border-radius:15px;display:grid;place-items:center;
  background:var(--brand);color:#fff;font-size:19px;
  box-shadow:0 8px 22px rgba(37,99,235,.34);
}
.chapter-num{
  font-family:var(--mono);font-size:11.5px;font-weight:600;letter-spacing:.16em;color:var(--accent);
  padding:5px 10px;border-radius:100px;background:var(--accent-glow);
  border:1px solid color-mix(in oklab,var(--accent) 35%,transparent);
}
.chapter h2{font-size:clamp(1.45rem,2.4vw,1.95rem);flex:1 1 320px;letter-spacing:-.02em;}
.intro{font-size:15.5px;color:var(--text-dim);margin:0 0 24px;max-width:70ch;}
.chapter h3{font-size:1.05rem;margin:30px 0 11px;display:flex;align-items:center;gap:10px;}
.chapter h3::before{content:'';width:4px;height:17px;border-radius:2px;background:var(--brand);flex:none;}
.chapter p{margin:0 0 12px;font-size:14.8px;}
.chapter p:last-child{margin-bottom:0;}
.chapter strong{color:var(--text-bright);font-weight:600;}
.chapter p a,.chapter td a,.chapter li a{
  color:var(--accent);text-decoration:underline;text-underline-offset:3px;
  text-decoration-color:color-mix(in oklab,var(--accent) 40%,transparent);
}
.chapter p a:hover,.chapter td a:hover,.chapter li a:hover{text-decoration-color:var(--accent);}
.chapter ul{margin:0 0 16px;padding:0;list-style:none;}
.chapter ul li{position:relative;padding-left:20px;margin-bottom:7px;font-size:14.5px;}
.chapter ul li::before{content:'';position:absolute;left:4px;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--accent);}
.chapter ol:not(.steps){margin:0 0 16px;padding-left:22px;}
.chapter ol:not(.steps) li{margin-bottom:7px;font-size:14.5px;padding-left:4px;}
.chapter ol:not(.steps) li::marker{color:var(--accent);font-family:var(--mono);font-size:12px;}
.chapter code{
  font-family:var(--mono);font-size:12.5px;color:var(--accent);
  padding:2px 6px;border-radius:6px;background:var(--bg-2);border:1px solid var(--border);
}
.chapter pre{
  margin:0 0 10px;padding:14px 16px;overflow-x:auto;
  background:var(--bg-1);border:1px solid var(--border);border-radius:var(--radius-sm);
}
.chapter pre code{display:block;padding:0;border:none;background:none;color:var(--text-bright);font-size:13px;line-height:1.7;white-space:pre;}
.caption,.sub{font-size:13px;color:var(--text-dim);}

/* tables */
.table-wrap{margin:0 0 22px;overflow:auto;background:var(--bg-1);border:1px solid var(--border);border-radius:var(--radius-sm);}
.table-wrap table{width:100%;border-collapse:collapse;font-size:13.8px;}
.table-wrap th{
  text-align:left;padding:11px 16px;white-space:nowrap;
  font-size:10.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--text-dim);
  background:var(--bg-2);border-bottom:1px solid var(--border);
}
.table-wrap td{padding:11px 16px;border-bottom:1px solid var(--border);vertical-align:top;color:var(--text);line-height:1.55;}
.table-wrap tr:last-child td{border-bottom:none;}
.table-wrap tbody tr{transition:background var(--transition);}
.table-wrap tbody tr:hover{background:var(--bg-2);}
.table-wrap td:first-child{color:var(--text-bright);font-weight:600;min-width:160px;}
.row-ico{display:inline-block;width:16px;text-align:center;margin-right:9px;color:var(--accent);font-size:12px;}
/* a wrapped label hangs under its own text, not under the icon */
.table-wrap td:first-child:has(.row-ico){padding-left:41px;text-indent:-25px;}
.table-wrap td:first-child:has(.row-ico) .row-ico{text-indent:0;}

/* callouts */
.note{
  margin:0 0 20px;padding:14px 18px 13px;
  background:var(--bg-1);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:var(--radius-sm);
}
.note strong{display:flex;align-items:center;gap:9px;margin-bottom:5px;font-size:14px;color:var(--text-bright);}
.note-ico{color:var(--accent);font-size:14px;}
.note p{margin:0;font-size:14px;}

/* quick-start cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:14px;margin:0 0 24px;}
.cards a{
  position:relative;display:block;padding:18px 18px 16px;
  background:var(--bg-1);border:1px solid var(--border);border-radius:var(--radius);
  transition:transform .18s cubic-bezier(.4,0,.2,1),border-color var(--transition),box-shadow var(--transition);
}
.cards a:hover{transform:translateY(-3px);border-color:var(--border-active);box-shadow:var(--shadow);}
.card-ico{display:grid;place-items:center;width:38px;height:38px;margin-bottom:12px;border-radius:11px;background:var(--accent-glow);color:var(--accent);font-size:15px;}
.card-go{position:absolute;top:18px;right:16px;color:var(--text-dim);font-size:12px;transition:transform var(--transition),color var(--transition);}
.cards a:hover .card-go{transform:translateX(3px);color:var(--accent);}
.cards b{display:block;margin-bottom:4px;font-size:14.5px;color:var(--text-bright);}
.cards span{display:block;font-size:13px;line-height:1.55;color:var(--text-dim);}

/* numbered walkthrough */
.steps{list-style:none;counter-reset:s;margin:0 0 22px;padding:0;}
.steps li{counter-increment:s;position:relative;padding:0 0 18px 48px;font-size:14.5px;}
.steps li::before{
  content:counter(s,decimal-leading-zero);position:absolute;left:0;top:-3px;
  width:32px;height:32px;border-radius:10px;text-align:center;
  background:var(--brand);color:#fff;font:700 12px/32px var(--mono);
  box-shadow:0 5px 14px rgba(37,99,235,.32);
}
.steps li::after{content:'';position:absolute;left:15px;top:33px;bottom:2px;width:2px;background:var(--border);}
.steps li:last-child{padding-bottom:0;}
.steps li:last-child::after{display:none;}

/* screenshots */
.shot{margin:8px 0 24px;}
.shot-btn{
  display:block;width:100%;padding:0;position:relative;overflow:hidden;cursor:zoom-in;
  background:var(--bg-1);border:1px solid var(--border);border-radius:var(--radius);
  transition:transform .18s cubic-bezier(.4,0,.2,1),border-color var(--transition),box-shadow var(--transition);
}
.shot-btn img{width:100%;height:auto;display:block;}
/* light theme: a white mat, so a light app window does not float on the page ground */
[data-theme="light"] .shot-btn{padding:8px;background:#fff;}
[data-theme="light"] .shot-btn img{border-radius:8px;}
.shot-btn:hover{transform:translateY(-2px);border-color:var(--border-active);box-shadow:var(--shadow);}
.shot-zoom{
  position:absolute;right:12px;bottom:12px;width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;font-size:12px;color:#fff;
  background:rgba(8,8,10,.72);border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  opacity:0;transition:opacity var(--transition);
}
.shot-btn:hover .shot-zoom,.shot-btn:focus-visible .shot-zoom{opacity:1;}
.shot figcaption{display:flex;gap:9px;margin-top:10px;font-size:12.8px;line-height:1.55;color:var(--text-dim);}
.shot figcaption::before{content:'';flex:none;width:14px;height:2px;margin-top:.62em;border-radius:2px;background:var(--accent);}
.shot-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:10px;}
.shot-tile{margin:0;}
@media (max-width:760px){.shot-grid{grid-template-columns:1fr;}}

/* disclosure */
.chapter details{margin:0 0 20px;padding:0 16px;background:var(--bg-1);border:1px solid var(--border);border-radius:var(--radius-sm);}
.chapter summary{
  display:flex;align-items:center;gap:10px;padding:12px 0;cursor:pointer;list-style:none;
  font-weight:600;font-size:14px;color:var(--text-bright);
}
.chapter summary::-webkit-details-marker{display:none;}
.sum-ico{color:var(--accent);font-size:11px;transition:transform .2s ease;}
.chapter details[open] .sum-ico{transform:rotate(90deg);}
.chapter details p{padding-bottom:12px;font-size:14px;}

/* QR cards */
.qr-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin:16px 0 28px;}
.qr-card{
  display:flex;flex-direction:column;align-items:center;gap:12px;padding:20px 16px 18px;text-align:center;
  background:var(--bg-1);border:1px solid var(--border);border-radius:var(--radius);
}
.qr-card .qr{width:136px;height:136px;padding:8px;background:#fff;border-radius:12px;box-shadow:var(--shadow-sm);}
.qr-name{display:flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:14px;color:var(--text-bright);}
.qr-name i{color:var(--accent);}
.qr-url{margin-top:3px;font-family:var(--mono);font-size:12px;color:var(--text-dim);}

.closing{margin:20px 0 0;padding-top:14px;border-top:1px dashed var(--border);font-family:var(--mono);font-size:12px;color:var(--text-dim);}
.top-link{
  display:inline-flex;align-items:center;gap:8px;margin-top:6px;padding:9px 15px;border-radius:100px;
  font-size:13px;color:var(--text-dim);border:1px solid var(--border);
  transition:color var(--transition),border-color var(--transition);
}
.top-link:hover{color:var(--text-bright);border-color:var(--border-active);}

/* ── motion ────────────────────────────────────────────────── */
@keyframes mnl-in{from{opacity:0;transform:translateX(-8px);}to{opacity:1;transform:none;}}
.manual__side nav a{animation:mnl-in .4s ease both;animation-delay:calc(var(--i,0) * 22ms);}
body.anim-ready .chapter{opacity:0;transform:translateY(16px);transition:opacity .6s cubic-bezier(.16,1,.3,1),transform .6s cubic-bezier(.16,1,.3,1);}
body.anim-ready .chapter.revealed{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .manual__side nav a{animation:none;}
  body.anim-ready .chapter{opacity:1;transform:none;transition:none;}
  .cards a:hover,.shot-btn:hover,#menu:hover{transform:none;}
}

/* ── screenshot viewer ─────────────────────────────────────── */
.lbx{
  position:fixed;inset:0;z-index:1050;display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  grid-template-rows:auto minmax(0,1fr) auto;
  grid-template-areas:"bar bar bar" "prev stage next" "foot foot foot";
  background:rgba(0,0,0,.94);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);
  animation:mnl-fade .16s ease both;
}
@keyframes mnl-fade{from{opacity:0;}to{opacity:1;}}
/* The viewer is appended to <body>, outside .manual, so the scoped
   `.manual [hidden]` rule above never reaches it and `.lbx{display:grid}`
   outranked the UA hidden rule — close() set the attribute and nothing
   changed on screen. */
.lbx[hidden]{display:none!important;}
.lbx-bar{grid-area:bar;display:flex;align-items:center;gap:12px;padding:14px 18px;}
.lbx-count{font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:#9aa4b2;font-variant-numeric:tabular-nums;}
.lbx-spacer{flex:1;}
.lbx-btn{
  width:38px;height:38px;flex:none;border-radius:100px;cursor:pointer;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.07);color:#f0f3f6;font-size:14px;
  transition:background .16s ease,border-color .16s ease,transform .1s ease;
}
.lbx-btn:hover{background:rgba(255,255,255,.14);border-color:var(--accent);}
.lbx-btn:active{transform:scale(.93);}
.lbx-stage{grid-area:stage;display:flex;align-items:center;justify-content:center;min-width:0;min-height:0;overflow:hidden;padding:0 8px;}
.lbx-stage img{display:block;width:auto;height:auto;max-width:100%;max-height:100%;border-radius:12px;background:#fff;box-shadow:0 26px 70px rgba(0,0,0,.6);cursor:zoom-in;}
.lbx.zoom .lbx-stage{overflow:auto;align-items:flex-start;justify-content:safe center;padding:14px;}
.lbx.zoom .lbx-stage img{max-width:none;max-height:none;cursor:grab;}
.lbx.zoom .lbx-stage.grabbing img{cursor:grabbing;}
.lbx-nav{align-self:center;margin:0 12px;}
.lbx-prev{grid-area:prev;}
.lbx-next{grid-area:next;}
.lbx-foot{grid-area:foot;display:flex;flex-direction:column;align-items:center;gap:10px;padding:10px 16px 16px;}
.lbx-cap{margin:0;max-width:820px;text-align:center;font-size:12.5px;line-height:1.62;color:#c9d1d9;}
.lbx-rail{display:flex;gap:7px;max-width:100%;overflow-x:auto;padding:4px 2px 6px;scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.25) transparent;}
.lbx-thumb{
  flex:none;width:74px;height:46px;padding:0;overflow:hidden;cursor:pointer;opacity:.45;
  border:1px solid rgba(255,255,255,.14);border-radius:7px;background:#0b0b0d;
  transition:opacity .16s ease,border-color .16s ease,transform .16s ease;
}
.lbx-thumb img{width:100%;height:100%;object-fit:cover;object-position:top left;display:block;}
.lbx-thumb:hover{opacity:.85;}
.lbx-thumb[aria-current="true"]{opacity:1;border-color:var(--accent);transform:translateY(-2px);}
body.lb-open{overflow:hidden;}
@media (max-width:780px){
  .lbx-nav{margin:0 2px;}
  .lbx-btn{width:34px;height:34px;}
  .lbx-rail{display:none;}
}

/* ── print ─────────────────────────────────────────────────── */
.print-cover{display:none;}
@media print{
  .nav,.drawer,.footer,.toasts,#menu,#progress,.side-scrim,.manual__side,.manual-head,
  .top-link,.shot-zoom,.lbx,#searchStatus{display:none!important;}
  body{background:#fff;color:#111;}
  .manual{display:block;}
  .print-cover{
    display:flex;flex-direction:column;align-items:flex-start;justify-content:center;
    min-height:88vh;break-after:page;page-break-after:always;
  }
  .pc-mark{width:54pt;height:54pt;border-radius:12pt;background:#2563eb;color:#fff;display:grid;place-items:center;font-size:30pt;font-weight:800;margin-bottom:26pt;}
  .pc-kicker{font-size:9pt;letter-spacing:2.2pt;text-transform:uppercase;color:#2563eb;font-weight:700;}
  .pc-title{font-size:40pt;line-height:1.1;font-weight:800;letter-spacing:-1pt;margin-top:10pt;color:#111;}
  .pc-rule{width:120pt;height:3pt;background:#2563eb;margin:20pt 0;}
  .pc-meta{font-size:9.5pt;color:#666;}
  body.anim-ready .chapter{opacity:1!important;transform:none!important;}
  .chapter{border-bottom:none;padding-bottom:0;margin-bottom:28pt;}
  .chapter-top{break-after:avoid;}
  .ch-ico{background:#2563eb;box-shadow:none;}
  .chapter h2,.chapter h3,.chapter strong,.table-wrap td:first-child{color:#111;}
  .chapter p,.chapter li,.table-wrap td{color:#222;}
  .shot{break-inside:avoid;}
  .shot-btn{border:1px solid #ddd;box-shadow:none!important;transform:none!important;}
  .table-wrap{overflow:visible;border-color:#ddd;background:#fff;}
  .table-wrap th{background:#f2f4f8;color:#555;}
  .table-wrap td{border-color:#e5e7eb;}
  .note,.cards a,.chapter details,.qr-card,.chapter pre{background:#fff;border-color:#ddd;}
  .chapter code{background:#f2f4f8;border-color:#e5e7eb;color:#1e40af;}
  .chapter p a,.chapter td a,.chapter li a{color:#111;text-decoration:none;}
}