@font-face { font-family:'Vazirmatn'; font-style:normal; font-display:swap; font-weight:700; src:url('/asset/font/vazirmatn-arabic-700-normal.woff2') format('woff2'); unicode-range:U+0600-06FF,U+0750-077F,U+0870-088E,U+0890-0891,U+0897-08E1,U+08E3-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FE74,U+FE76-FEFC; }
@font-face { font-family:'Vazirmatn Fallback'; src:local('Arial'); ascent-override:100%; descent-override:35%; line-gap-override:0%; size-adjust:102%; }
/* CANDIDATE residual — archetype "ebook" — mechanical extract, not yet design-reviewed.
 * Clone source: Farhad Mirsaeedi.COM/_build/ebook/reading/tfng/index.html
 * Generated: 2026-08-26T14:34:52.760Z
 * Rules in system block: 271 · dropped as already-covered-by-components.css: 26 · kept: 245 · rewritten: 89 · flagged NEEDS-DESIGN: 0
 * findSystemBlock source: required from _restyle_sweep.js
 * DO NOT promote to residual-ebook.css without a design pass over the NEEDS-DESIGN + ROUNDED + FLAG items in the paired .report.md. */

html { -webkit-text-size-adjust:100%; }

body { margin:0; font-family:var(--font-fa); font-weight:500; font-size: 16px; line-height:1.65; color:var(--ink-soft); background:var(--paper); -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale; }

h1,
h2,
h3,
h4 { text-wrap:balance; margin:0; color:var(--ink); }

p { text-wrap:pretty; margin:0; }

a { color:inherit; text-decoration:none; }

img,
svg { display:block; max-width:100%; }

:focus-visible { outline:2px solid var(--ink); outline-offset:2px; }

button,
a { -webkit-tap-highlight-color:transparent; touch-action:manipulation; }

button { font-family:inherit; }

.sigil-defs { position:absolute; width:0; height:0; overflow:hidden; }

.progress { position:fixed; top:0; inset-inline-start:0; height:2px; width:0; background:var(--ink); z-index:100; transition:width 80ms linear; pointer-events:none; }

.header.is-hidden { transform:translateY(-100%); }

.header__start { display:flex; align-items:center; gap:10px; min-width:0; }

.header__brand { display:flex; align-items:center; gap:8px; flex:0 0 auto; }

.header__sigil { width:22px; height:22px; flex:0 0 22px; color:var(--ink); }

.header__wordmark { font-family:var(--font-fa); font-weight:700; color:var(--ink); font-size: 13px; }

@media (hover:hover){
.header__crumb:hover { color:var(--ink); }
}

.header__sep { color:var(--ink-meta); font-size:13px; flex:0 0 auto; }

.header__nav { display:flex; align-items:center; gap:14px; flex:0 0 auto; }

.header__pill::after { content:""; position:absolute; inset:-7px 0; }

.header__link {
  font-family:var(--font-fa); font-weight:600; font-size:13px;
  color:var(--ink-meta); padding:6px 4px; transition:color 200ms;
}

@media (hover:hover){
.header__link:hover { color:var(--ink); }
}

@media (max-width:600px){
.header__pill--desk,
.header__link--desk { display:none; }
.header__nav { gap:10px; }
}

.header__rail { display:none; }

@media (max-width:768px){
.header__rail {
    display:flex; align-items:center; gap:8px;
    min-height:44px; padding:0 var(--gutter,16px);
    border-top:1px solid var(--paper-rule);
    overflow-x:auto; white-space:nowrap;
    scrollbar-width:none;
  }
.header__rail::-webkit-scrollbar { display:none; }
.header__rail-back {
    display:inline-flex; align-items:center; gap:6px;
    font-family:var(--font-fa); font-weight:700; font-size: 13px;
    color:var(--ink); padding:12px 0; flex:0 0 auto;
  }
.header__rail-arrow { font-size: 16px; }
.header__rail-sep { color:var(--line-gold); font-size: 11px; flex:0 0 auto; }
.header__rail-current {
    font-family:var(--font-fa); font-weight:600; font-size: 13px;
    color:var(--ink-meta); flex:0 0 auto;
  }
}

.header__trail bdi,
.header__rail bdi {
  direction:ltr; unicode-bidi:isolate; font-family:var(--font-en,inherit);
}

.eyebrow { font-family:var(--font-en); font-weight:600; font-size:11px;  text-transform:uppercase; color:var(--ink-meta); margin:0 0 24px; direction:ltr; }

.eyebrow--on-dark { color:rgba(245,241,230,.7); }

.cover { background:var(--paper); padding:var(--space-md) var(--gutter) var(--space-sm); text-align:start; border-bottom:1px solid var(--line-gold); }

.cover__inner { max-width:var(--measure-reading); margin:0 auto; position:relative; background:var(--slip); border:1.5px solid var(--line-dash); border-top:2px solid var(--ink); border-radius:var(--r-surface); padding:22px; }

.cover__inner::before { content:''; position:absolute; inset-inline:0; top:4px; border-top:1px solid var(--line-gold); }

.cover__eyebrow { font-family:var(--font-en); font-weight:600; font-size: 11px;  color:var(--ink-meta); margin:0 0 22px; direction:ltr; border-inline-start:2px solid var(--line-gold); padding-inline-start:12px; }

.cover__title { font-family:var(--font-fa); font-weight:700; font-size:40px; line-height:1.25; color:var(--ink); margin:0 0 14px; }

@media (min-width:768px){
.cover__title { font-size: 40px; }
}

.cover__title-en { font-family:var(--font-en); font-weight:600; font-size: 19px; color:var(--ink-meta); margin:0 0 30px; direction:ltr; }

@media (min-width:768px){
.cover__title-en { font-size: 23px; }
}

.cover__byline { font-family:var(--font-en); font-weight:500; font-size:13px; color:var(--ink-meta); direction:ltr; margin:0 0 26px; border-top:1px solid var(--line-gold); padding-top:10px; }

.cover__download { display:inline-flex; align-items:center; min-height:48px; gap:8px; font-family:var(--font-fa); font-weight:700; font-size: 16px; color:var(--on-highlighter); background:var(--highlighter); border:1.5px solid var(--ink); border-radius:var(--r-surface); padding:11px 24px; transition:opacity .2s, transform .2s; }

.cover__download:hover { opacity:.82; }

.cover__download:active { opacity:.68; transform:translateY(1px); }

.cover__download svg { width:15px; height:15px; }

.lhero { background:var(--ink); color:var(--on-ink); padding: var(--space-md) var(--gutter) var(--space-sm); }

.lhero__inner { max-width:var(--measure-reading); margin:0 auto; }

.lhero__pos { display:inline-flex; align-items:center; gap:8px; margin:0 0 20px; font-family:var(--font-fa); font-weight:600; font-size: 11px; color:var(--on-ink); border:1px solid rgba(245,241,230,.35); border-radius:var(--r-chip); padding:5px 16px; }

.lhero__title { font-family:var(--font-fa); font-weight:700; font-size: 34px; line-height:1.3; color:var(--on-ink); margin:0 0 18px; }

@media (min-width:768px){
.lhero__title { font-size: 40px; }
}

.lhero__sub { font-size: 16px; line-height:1.7; color:var(--on-ink); margin:0; max-width:56ch; }

.meta { padding:24px var(--gutter); background:var(--paper); border-bottom:1px solid var(--line-gold); }

.meta__inner { max-width:var(--measure-reading); margin:0 auto; display:flex; flex-wrap:wrap; align-items:center; gap:14px; font-size:13px; color:var(--ink-meta); }

.meta__author { display:flex; align-items:center; gap:10px; }

.meta__avatar { width:28px; height:28px; border-radius:50%; object-fit:cover; background:var(--ink); flex:0 0 28px; }

.meta__author-name { font-family:var(--font-fa); font-weight:700; font-size:13px; color:var(--ink); }

.meta__sep { width:3px; height:3px; border-radius:50%; background:var(--line-gold); flex:0 0 3px; }

.toc { padding:32px var(--gutter) 16px; background:var(--paper); }

.toc__inner { max-width:var(--measure-reading); margin:0 auto; }

.toc__title { font-family:var(--font-fa); font-weight:600; font-size:13px; color:var(--ink-meta); margin:0 0 14px; }

.toc__list { list-style:none; margin:0; padding:0; border-top:1px solid var(--line-gold); }

.toc__item { border-bottom:1px solid var(--line-gold); }

.toc__link { display:grid; grid-template-columns:auto 1fr auto; gap:14px; align-items:baseline; padding:12px 0; color:var(--ink-soft); font-family:var(--font-fa); font-weight:500; font-size: 16px; transition:color 150ms, padding-inline-start 200ms; }

.toc__num { font-family:var(--font-en); font-weight:600; font-size:11px;  color:var(--ink-meta); font-variant-numeric:tabular-nums; direction:ltr; }

.toc__arrow { font-size: 13px; color:var(--ink-meta); transition:transform 200ms, color 200ms; }

@media (hover:hover){
.toc__link:hover { color:var(--ink); padding-inline-start:4px; }
.toc__link:hover .toc__arrow { color:var(--ink); transform:translateX(4px); }
}

.article { padding:32px var(--gutter) var(--space-md); background:var(--paper); }

.article__inner { max-width:var(--measure-reading); margin:0 auto; }

.article p { font-size: 16px; line-height:1.85; color:var(--ink-soft); margin:0 0 22px; }

@media (min-width:768px){
.article p { font-size: 19px; line-height:1.85; margin:0 0 24px; }
}

.article p.beat { font-weight:600; color:var(--ink); font-size:19px; line-height:1.6; padding-top:20px; margin-top:8px; border-top:1px solid var(--ink); }

@media (min-width:768px){
.article p.beat { font-size: 19px; }
}

.article p.beat:first-of-type { margin-top:0; }

.article h2 { font-family:var(--font-fa); font-weight:700; font-size: 28px; color:var(--ink); margin:64px 0 20px; line-height:1.35; scroll-margin-top:80px; }

@media (min-width:768px){
.article h2 { font-size: 28px; margin:80px 0 24px; }
}

.article h2:first-child { margin-top:0; }

.article h3 { font-family:var(--font-fa); font-weight:700; font-size: 19px; color:var(--ink); margin:36px 0 14px; }

.article strong { color:var(--ink); font-weight:700; }

.article ul,
.article ol { margin:0 0 22px; padding-inline-start:0; list-style:none; }

.article li { font-size: 16px; line-height:1.85; color:var(--ink-soft); margin:0 0 12px; padding-inline-start:22px; position:relative; }

.article li::before { content:""; position:absolute; inset-inline-start:0; top:13px; width:6px; height:6px; border-radius:50%; background:var(--ink); }

@media (min-width:768px){
.article li { font-size: 19px; }
}

.article__quote { margin:32px 0; padding:28px; background:var(--ink); color:var(--paper) !important; border:0; border-radius:var(--radius-card); font-family:var(--font-fa); font-size: 19px; font-weight:600; line-height:1.6; }

@media (min-width:768px){
.article__quote { padding:32px 36px; font-size: 23px; }
}

.enblock { margin:28px 0; border:1px solid var(--line-gold); border-inline-start:3px solid var(--ink); border-radius:var(--radius-card); background:var(--paper); padding:16px 18px; }

.enblock__label { font-family:var(--font-en); font-weight:600; font-size: 11px;  text-transform:uppercase; color:var(--ink-meta); margin:0 0 8px; direction:ltr; }

.enblock__text { font-family:var(--font-en); font-weight:500; font-size: 16px; line-height:1.7; color:var(--ink-soft); margin:0; direction:ltr; text-align:left; }

.enblock__text em { font-style:normal; font-weight:700; color:var(--ink); }

.enblock__text + .enblock__text { margin-top:10px; }

.ltable-wrap { margin:32px 0; background:var(--paper); border:1px solid var(--line-gold); border-radius:var(--radius-card); padding:24px 8px; overflow-x:auto; }

.ltable { width:100%; border-collapse:collapse; font-size: 16px; }

.ltable caption { font-family:var(--font-en); font-weight:600; font-size:11px;  text-transform:uppercase; color:var(--ink-meta); direction:ltr; caption-side:top; text-align:start; padding:0 16px 16px; }

.ltable th,
.ltable td { padding:12px 16px; text-align:start; border-bottom:1px solid var(--line-gold); }

.ltable th { font-family:var(--font-fa); font-weight:700; color:var(--ink); font-size: 11px;  text-transform:none; background:transparent; border-bottom:1px solid var(--ink); }

.ltable td:first-child { font-family:var(--font-fa); font-weight:700; color:var(--ink); }

.ltable .mono { font-family:var(--font-en); font-weight:600; color:var(--ink-soft); }

.ltable td { color:var(--ink-soft); }

.rwgrid { display:grid; grid-template-columns:1fr; gap:14px; margin:32px 0; }

@media (min-width:600px){
.rwgrid { grid-template-columns:repeat(2, 1fr); }
}

.rwcard { border:1px solid var(--line-gold); border-radius:var(--radius-card); padding:18px 16px; background:var(--paper); }

.rwcard__tag { font-family:var(--font-en); font-weight:700; font-size:11px;  direction:ltr; }

.rwcard--wrong { background:var(--paper); }

.rwcard--wrong .rwcard__tag { color:var(--ink-meta); }

.rwcard--wrong .rwcard__tag::before { content:'\2717 '; }

.rwcard--right { border-color:var(--ink); border-inline-start-width:3px; }

.rwcard--right .rwcard__tag { color:var(--ink); }

.rwcard--right .rwcard__tag::before { content:'\2713 '; }

.rwcard__answer { font-family:var(--font-en); font-weight:700; font-size: 19px; color:var(--ink); margin-top:8px; direction:ltr; word-break:break-word; text-align:left; }

.rwcard--wrong .rwcard__answer { color:var(--ink-meta); }

.rwcard__body { font-size: 13px; line-height:1.7; color:var(--ink-soft); margin-top:10px; }

.lfig__cap { font-family:var(--font-en); font-weight:600; font-size:11px;  text-transform:uppercase; color:var(--ink-meta); direction:ltr; margin:0 0 18px; }

.lfig__note { font-size:16px; line-height:1.7; color:var(--ink-meta); margin:16px 0 0; padding-top:14px; border-top:1px solid var(--paper-rule); }

.lfig svg { display:block; width:100%; height:auto; }

.lrail { display:none; }

@media (min-width:1240px){
.lrail { display:block; position:fixed; top:120px; right:max(24px, calc(50% - var(--measure-reading)/2 - 224px)); width:200px; z-index:40; direction:rtl; text-align:right; padding-inline-end:14px; border-inline-end:1px solid var(--line-gold); }
.lrail__title { font-family:var(--font-fa); font-weight:600; font-size:11px; color:var(--ink-meta); margin:0 0 12px; padding-bottom:10px; border-bottom:1px solid var(--line-gold); }
.lrail__item { display:block; font-family:var(--font-fa); font-weight:500; font-size:13px; line-height:1.5; color:var(--ink-meta); padding:7px 0; padding-inline-end:12px; border-inline-end:2px solid var(--line-gold); transition:color 150ms, border-color 150ms; }
.lrail__item.is-active { color:var(--ink); font-weight:600; border-inline-end-color:var(--ink); }
.lrail__item--test { margin-top:8px; padding-top:12px; border-top:1px solid var(--paper-rule); }
@media (hover:hover){
.lrail__item:hover { color:var(--ink-soft); }
}
}

/* C-Chrome parity (2026-08-27): ebook's .lbar is BOTTOM-anchored (components.css carries the
   shared top-anchored default used by lesson/blog) — override the anchor + hidden-state transform. */
.lbar { position:fixed; top:auto; bottom:0; inset-inline:0; z-index:45; padding-top:0; padding-bottom:env(safe-area-inset-bottom,0px); transform:translateY(110%); }
.lbar__sheet { max-height:0; overflow:hidden; }

.lbar.is-shown { transform:translateY(0); }

.lbar__label { font-family:var(--font-fa); font-weight:600; font-size: 13px; color:var(--ink); }

.lbar__chev { font-size: 11px; color:var(--ink-meta); transition:transform 200ms; }

.lbar.is-open .lbar__chev { transform:rotate(180deg); }

.lbar.is-open .lbar__sheet { max-height:70vh; overflow-y:auto; border-top:1px solid var(--line-gold); }

.lbar__item--test { color:var(--ink); font-weight:600; }

.stest { padding:var(--space-md) var(--gutter); background:var(--paper); border-top:1px solid var(--line-gold); border-bottom:1px solid var(--line-gold); }

.stest__inner { max-width:var(--measure-reading); margin:0 auto; }

.stest__head { font-family:var(--font-fa); font-weight:700; font-size: 23px; color:var(--ink); margin:0 0 8px; }

@media (min-width:768px){
.stest__head { font-size:28px; }
}

.stest__intro { font-size: 16px; line-height:1.85; color:var(--ink-soft); margin:0 0 28px; }

.stest__q { background:var(--paper); border:1px solid var(--line-gold); border-radius:var(--radius-card); box-shadow: none; padding:20px 18px; margin:0 0 14px; }

.stest__qn { font-family:var(--font-en); font-weight:600; font-size:11px;  text-transform:uppercase; color:var(--ink-meta); direction:ltr; margin:0 0 10px; }

.stest__prompt { font-family:var(--font-fa); font-weight:600; font-size:16px; line-height:1.7; color:var(--ink); margin:0 0 16px; }

.stest__prompt[dir="ltr"],
.stest__prompt--en { font-family:var(--font-en); direction:ltr; text-align:left; }

.stest__opts { list-style:none; margin:0 0 14px; padding:0; }

.stest__opt { font-family:var(--font-en); font-weight:500; font-size: 13px; line-height:1.6; color:var(--ink-soft); border:1px solid var(--line-gold); border-radius:var(--radius-button); padding:11px 14px; margin:0 0 8px; direction:ltr; text-align:left; }

.stest__q.is-revealed .stest__opt--right { border-color:var(--ink); border-inline-start-width:3px; color:var(--ink); font-weight:600; }

.stest__q.is-revealed .stest__opt--right::before { content:'\2713 '; font-weight:700; }

.stest__toggle { font-family:var(--font-fa); font-weight:600; font-size:13px; color:var(--ink); background:none; border:none; border-bottom:1px solid var(--line-gold); padding:0 0 3px; cursor:pointer; transition:border-color .2s; }

@media (hover:hover){
.stest__toggle:hover { border-bottom-color:var(--ink); }
}

.stest__answer { display:none; margin-top:14px; padding-top:14px; border-top:1px solid var(--line-gold); }

.stest__answer.is-shown { display:block; }

.stest__answer-en { font-family:var(--font-en); font-weight:600; font-size: 13px; color:var(--ink); direction:ltr; text-align:left; margin:0 0 8px; }

.stest__answer-fa { font-size: 13px; line-height:1.85; color:var(--ink-soft); margin:0; }

.stest__answer-fa strong { color:var(--ink); font-weight:700; }

.qref { padding:var(--space-md) var(--gutter); background:var(--paper); }

.qref__inner { max-width:var(--measure-reading); margin:0 auto; }

.qref__head { font-family:var(--font-fa); font-weight:700; font-size: 23px; color:var(--ink); margin:0 0 20px; }

@media (min-width:768px){
.qref__head { font-size:28px; }
}

.qref__sheet { border:1px solid var(--line-gold); border-radius:var(--radius-card); overflow:hidden; box-shadow: none; }

.qref__lead { background:var(--ink); color:var(--paper); padding:22px 24px; font-family:var(--font-fa); font-weight:700; font-size: 19px; line-height:1.6; }

.qref__row { padding:16px 24px; border-bottom:1px solid var(--line-gold); }

.qref__row:last-child { border-bottom:none; }

.qref__row-key { font-family:var(--font-fa); font-weight:700; font-size: 13px; color:var(--ink); margin:0 0 6px; }

.qref__row-val { font-size: 13px; line-height:1.8; color:var(--ink-soft); margin:0; }

.bridge__inner { max-width:var(--measure-reading); margin:0 auto; text-align:center; }

.bridge__text { font-size: 16px; line-height:1.9; color:var(--ink-soft); margin:0 0 8px; }

.bridge__text strong { color:var(--ink); font-weight:700; }

.bridge__link { font-family:var(--font-fa); font-weight:600; font-size: 16px; color:var(--ink); border-bottom:1px solid var(--line-gold); padding-bottom:3px; transition:border-color .2s; }

@media (hover:hover){
.bridge__link:hover { border-bottom-color:var(--ink); }
}

.bridge__next { margin-top:36px; display:block; border:1.5px solid var(--ink); border-radius:var(--r-surface); background:var(--highlighter); overflow:hidden; box-shadow: none; text-align:start; transition:opacity .2s; }

.bridge__next-head { background:transparent; border-bottom:1.5px dashed var(--ink); color:var(--on-highlighter); padding:14px 22px; display:flex; justify-content:space-between; align-items:center; gap:12px; }

.bridge__next-eyebrow { font-family:var(--font-en); font-weight:600; font-size:11px;  color:var(--ink-soft); direction:ltr; }

.bridge__next-pos { font-family:var(--font-en); font-weight:600; font-size:11px; color:var(--on-highlighter); direction:ltr; }

.bridge__next-body { padding:22px; display:flex; justify-content:space-between; align-items:center; gap:16px; }

.bridge__next-title { font-family:var(--font-fa); font-weight:700; font-size: 19px; color:var(--on-highlighter); margin:0 0 6px; line-height:1.4; }

.bridge__next-sub { font-size:13px; color:var(--ink-soft); margin:0; }

.bridge__next-arrow { font-size: 23px; color:var(--on-highlighter); flex:0 0 auto; transition:transform .2s; }

@media (hover:hover){
a.bridge__next:hover { opacity:.88; }
a.bridge__next:hover .bridge__next-arrow { transform:translateX(-4px); }
}

.footer__inner { max-width:var(--measure-wide); margin:0 auto; }

.footer__top { direction:rtl; display:flex; flex-direction:column; align-items:center; gap:20px; margin-bottom:28px; }

@media (min-width:768px){
.footer__top { flex-direction:row; justify-content:space-between; align-items:center; }
}

.footer__brand { display:flex; align-items:center; gap:8px; }

.footer__sigil { width:22px; height:22px; flex:0 0 22px; color:var(--ink); }

.footer__wordmark { font-family:var(--font-fa); font-weight:700; font-size: 13px; color:var(--ink); }

.footer__social { display:flex; align-items:center; gap:20px; }

.footer__social a { font-family:var(--font-en); font-size:13px; color:var(--ink-soft); transition:color 200ms; }

@media (hover:hover){
.footer__social a:hover { color:var(--ink); }
}

.footer__nav { padding:16px 0; border-top:1px solid var(--line-gold); border-bottom:1px solid var(--line-gold); margin-bottom:24px; font-size: 13px; color:var(--ink-meta); text-align:center; }

.footer__nav a { color:var(--ink-soft); padding:0 4px; transition:color 200ms; }

@media (hover:hover){
.footer__nav a:hover { color:var(--ink); }
}

.footer__consult { font-size: 13px; color:var(--ink-soft); margin:0 0 12px; text-align:center; }

.footer__consult a { color:var(--ink); font-weight:600; border-bottom:1px solid var(--line-gold); transition:border-color 200ms; }

@media (hover:hover){
.footer__consult a:hover { border-bottom-color:var(--ink); }
}

.footer__copy { font-family:var(--font-en); font-size: 11px; color:var(--ink-meta); margin:0; text-align:center; }

@media print{
@page { size:A4; margin:18mm 16mm; }
.skip-link,
.progress,
.header,
.lrail,
.lbar,
.meta,
.stest__toggle,
.cover__download { display:none !important; }
body { font-size:11pt; line-height:1.6; color:var(--ink); background:var(--paper); -webkit-print-color-adjust:exact; print-color-adjust:exact; }
.cover { background:var(--paper); padding:0 0 14mm; border-bottom:1px solid var(--line-gold); page-break-after:always; }
.lhero { background:var(--paper) !important; color:var(--ink); padding:0 0 8mm; border-bottom:1px solid var(--line-gold); }
.lhero__sub { color:var(--ink-soft) !important; }
.lhero__title { color:var(--ink) !important; }
.lhero__pos { color:var(--ink-soft) !important; border-color:var(--line-gold) !important; }
.toc { padding:6mm 0; page-break-after:always; }
.article,
.stest,
.qref,
.bridge { padding:6mm 0; background:var(--paper) !important; }
.article h2 { margin:8mm 0 4mm; page-break-after:avoid; }
.article p,
.article li { font-size:11pt; color:var(--ink-soft); }
.article p.beat { color:var(--ink); }
.lfig,
.stest__q,
.rwcard,
.ltable-wrap,
.enblock,
.qref__sheet,
.article__quote { page-break-inside:avoid; box-shadow:none !important; }
.article__quote { background:var(--ink) !important; color:var(--paper) !important; }
.qref__lead { background:var(--ink) !important; color:var(--paper) !important; }
.stest__answer { display:block !important; }
.stest__opt--right { border-color:var(--ink); border-inline-start-width:3px; color:var(--ink); font-weight:600; }
.stest__opt--right::before { content:'\2713 '; font-weight:700; }
.bridge__next { display:none; }
a { color:var(--ink); text-decoration:none; }
}

.fswitch { padding:22px var(--gutter) 0; background:var(--paper); }

.fswitch__inner { max-width:var(--measure-reading); margin:0 auto; }

.fswitch__bar { display:flex; flex-direction:column; gap:10px; align-items:stretch; border:0; border-radius:0; overflow:visible; box-shadow: none; }

.fswitch__here { flex:0 0 auto; display:flex; align-items:center; gap:11px; padding:15px 20px; background:var(--paper); border:1.5px solid var(--line-dash); border-inline-start:2px solid var(--ink); border-radius:var(--r-row); }

.fswitch__here-icon { flex:0 0 auto; color:var(--ink-meta); display:flex; }

.fswitch__here-icon svg { width:18px; height:18px; }

.fswitch__here-text { display:flex; flex-direction:column; gap:2px; line-height:1.3; }

.fswitch__here-label { font-family:var(--font-fa); font-weight:500; font-size:11px; color:var(--ink-meta); }

.fswitch__here-name { font-family:var(--font-fa); font-weight:700; font-size: 14px; color:var(--ink); align-self:flex-start; background:none; padding:0; text-decoration:underline; text-underline-offset:3px; text-decoration-thickness:1px; text-decoration-color:var(--line-gold); }

.fswitch__door { flex:0 0 auto; display:flex; align-items:center; gap:13px; min-height:44px; padding:13px 20px; text-align:start; border:1.5px dashed var(--line-dash); border-radius:var(--r-row); transition:background .2s, border-color .2s; }

.fswitch__door-badge { flex:0 0 auto; width:36px; height:36px; border-radius:50%; background:transparent; border:1.5px solid var(--ink-meta-deco); color:var(--ink-soft); display:flex; align-items:center; justify-content:center; }

.fswitch__door-badge svg { width:16px; height:16px; }

.fswitch__door-text { flex:1 1 auto; display:flex; flex-direction:column; gap:3px; }

.fswitch__door-title { font-family:var(--font-fa); font-weight:700; font-size:16px; color:var(--ink); }

.fswitch__door-sub { font-family:var(--font-fa); font-weight:500; font-size:13px; line-height:1.8; color:var(--ink-meta); }

.fswitch__door-arrow { flex:0 0 auto; font-size: 19px; color:var(--ink); transition:transform .2s; }

@media (min-width:560px){
.fswitch__here { flex:0 0 auto; }
.fswitch__door { flex:0 0 auto; }
}

@media (hover:hover){
a.fswitch__door:hover { background:var(--paper); border-color:var(--ink); }
a.fswitch__door:hover .fswitch__door-arrow { transform:translateX(-4px); }
}

.companion-card { margin-top:24px; display:flex; align-items:center; gap:14px; border:1px solid var(--line-gold); border-radius:var(--radius-card); background:var(--paper); padding:16px 20px; text-align:start; transition:border-color .2s; }

.companion-card__icon { flex:0 0 auto; color:var(--ink); display:flex; }

.companion-card__icon svg { width:22px; height:22px; }

.companion-card__body { flex:1 1 auto; }

.companion-card__title { display:block; font-family:var(--font-fa); font-weight:700; font-size: 16px; color:var(--ink); margin:0 0 3px; }

.companion-card__sub { display:block; font-size: 11px; color:var(--ink-meta); line-height:1.6; }

.companion-card__arrow { flex:0 0 auto; font-size: 19px; color:var(--ink); transition:transform .2s; }

@media (hover:hover){
a.companion-card:hover { border-color:var(--ink); }
a.companion-card:hover .companion-card__arrow { transform:translateX(-4px); }
}

.lrail__companion { display:flex; align-items:center; gap:7px; margin-top:14px; padding-top:14px; border-top:1px solid var(--line-gold); font-family:var(--font-fa); font-size: 11px; color:var(--ink-meta); transition:color 200ms; }

.lrail__companion svg { width:13px; height:13px; flex:0 0 13px; }

@media (hover:hover){
.lrail__companion:hover { color:var(--ink); }
}

@media print{
.fswitch { display:none !important; }
.companion-card { break-inside:avoid; box-shadow:none !important; border:1px solid var(--ink); }
}


.sk-ebook{background:var(--paper);color:var(--ink);font-family:Vazirmatn,sans-serif}.sk-ebook [hidden]{display:none!important}.sk-ebook .cover,.sk-ebook .meta,.sk-ebook .toc,.sk-ebook .bridge{max-width:960px;margin-inline:auto;padding-inline:32px}.sk-ebook .cover{padding-block:64px 40px;min-height:0}.sk-ebook .lhero{padding:0;max-width:760px;margin:0}.sk-ebook h1,.sk-ebook h2,.sk-ebook h3{font-family:Markazi Text,Vazirmatn,serif;font-weight:700;letter-spacing:0}.sk-ebook .cover__title{font-size:56px;line-height:1.15;margin:12px 0 16px}.sk-ebook h2{font-size:36px;line-height:1.35;margin-top:72px;scroll-margin-top:100px}.sk-ebook h3{font-size:28px;line-height:1.4;margin:20px 0 16px}.sk-ebook h4{font-size:20px;line-height:1.7}.sk-ebook p,.sk-ebook li,.sk-ebook dd{line-height:1.95;font-size:16px}.sk-ebook .cover__title-en{font:500 16px Vazirmatn,sans-serif;letter-spacing:0;margin:0 0 16px}.sk-ebook .cover__actions{display:flex;gap:20px;align-items:center;flex-wrap:wrap}.sk-ebook .cover__download{padding:12px 20px;background:var(--highlighter);color:var(--ink);border:1px solid var(--ink);border-radius:6px;text-decoration:none;font-weight:700;min-height:48px}.sk-ebook .article{padding:0 0 48px}.sk-ebook .article__inner{width:calc(100% - 64px);max-width:780px;margin:auto;padding:0}.sk-ebook .toc{position:static}.sk-ebook .toc__list{display:flex;gap:16px;flex-wrap:wrap;padding:0;list-style:none}.sk-ebook .toc__link{font-size:16px}.sk-ebook .lrail{display:none}.sk-ebook .lfig{margin:32px 0;padding:24px;background:var(--slip);text-align:center}.sk-ebook .lfig img{display:block;max-width:100%;width:280px;height:auto;margin:auto}.sk-ebook figcaption{font-size:14px;line-height:1.9;color:var(--ink-meta);margin-top:16px}.sk-ebook .passage{direction:ltr;border-inline-start:3px solid var(--line-gold);padding-inline-start:20px;margin:28px 0}.sk-ebook .passage h3{font:700 20px Vazirmatn,sans-serif;line-height:1.7}.sk-ebook .map{padding:24px 40px;background:var(--slip)}.sk-ebook .paper-question,.sk-ebook .stest__q{margin:32px 0;padding:24px;border:1px solid var(--line);border-radius:6px}.sk-ebook details{padding-top:16px;margin-top:20px;border-top:1px solid var(--line)}.sk-ebook summary{font-weight:700;cursor:pointer;padding-bottom:12px;line-height:1.9}.sk-ebook .strategy{display:grid;grid-template-columns:160px 1fr;gap:16px}.sk-ebook dt{font-weight:700}.sk-ebook dd{margin:0}.sk-ebook .worksheet{padding:24px;border:1px solid var(--line);margin:28px 0;overflow-wrap:anywhere}.sk-ebook .writing-lines{height:112px;border-bottom:1px solid var(--line)}.sk-ebook .qref{padding:24px;background:var(--slip);margin-top:48px}.sk-ebook .qref__row{padding:12px 0;border-bottom:1px solid var(--line);line-height:1.9}.sk-ebook .bridge{padding-block:32px 64px}.sk-ebook .sk-note,.sk-ebook .sk-kicker{font-size:14px;color:var(--ink-meta)}.sk-ebook :focus-visible{outline:3px solid var(--ink);outline-offset:4px}.sk-ebook .stest__toggle{font:700 16px Vazirmatn,sans-serif}.sk-ebook .stest__q::before{display:none}
@media(max-width:760px){.sk-ebook .cover,.sk-ebook .meta,.sk-ebook .toc,.sk-ebook .bridge{padding-inline:20px}.sk-ebook .article__inner{width:calc(100% - 40px)}.sk-ebook .cover{padding-top:40px}.sk-ebook .cover__title{font-size:44px}.sk-ebook h2{font-size:32px;margin-top:48px}.sk-ebook .strategy{grid-template-columns:1fr;gap:8px}.sk-ebook dd{margin-bottom:16px}.sk-ebook .paper-question,.sk-ebook .stest__q{padding:16px}.sk-ebook .toc__list{gap:16px}.sk-ebook .passage{padding-inline-start:12px}}
@media print{@page{size:A4;margin:15mm 14mm 23mm}.header,.lrail,.lbar,.toc,.progress,.cover__actions,.bridge,.footer,.back-top{display:none!important}.sk-ebook .cover{break-after:page;padding:20mm 0 0;min-height:170mm}.sk-ebook .meta{display:none}.sk-ebook .article__inner{width:100%;max-width:none}.sk-ebook h2{font-size:26px;margin-top:8mm;break-after:avoid}.sk-ebook h3{font-size:22px;break-after:avoid}.sk-ebook h4{font-size:17px;break-after:avoid}.sk-ebook p,.sk-ebook li,.sk-ebook dd{font-size:13px;line-height:1.65;orphans:3;widows:3}.sk-ebook .passage{break-inside:auto;padding-inline-start:12px;margin:5mm 0}.sk-ebook .passage p{break-inside:avoid}.sk-ebook .paper-question,.sk-ebook .stest__q{break-inside:avoid;margin:6mm 0;padding:12px}.sk-ebook .lfig{break-inside:avoid;padding:12px;margin:6mm 0}.sk-ebook .lfig img{width:210px}.sk-ebook .worksheet{break-inside:avoid}.sk-ebook .qref{break-inside:avoid;margin-top:8mm}.sk-ebook .article{padding:0}.sk-ebook details{display:block!important}.sk-ebook .sources{break-inside:avoid}.sk-ebook .cover__title{font-size:48px}.sk-ebook .cover__title-en{font-size:18px}}

.related-links{max-width:780px;margin:32px auto;padding:16px}.sk-ebook .lfig>svg{display:block;width:280px;max-width:100%;height:auto;margin:auto}

/* Keep the cover on paper; inherited dark-hero rules are out of scope here. */
.sk-ebook .cover{width:100%;box-sizing:border-box;background:var(--paper);color:var(--ink)}.sk-ebook .cover .lhero{width:100%;max-width:none;min-width:0;background:transparent;color:var(--ink);border:0;box-sizing:border-box}.sk-ebook .cover p,.sk-ebook .cover h1{color:var(--ink)}.sk-ebook .cover p{font-weight:500;font-size:19px;line-height:1.85}.sk-ebook .cover .sk-kicker,.sk-ebook .cover .cover__title-en{color:var(--ink-meta);font-size:13px}.sk-ebook .cover a{color:var(--ink)}.sk-ebook .cover__title{font-weight:700}.sk-ebook .cover .lfig{border:0;max-width:400px;margin-inline:auto;background:var(--slip)}.sk-ebook .cover__actions{justify-content:flex-start}.sk-ebook .cover__download{border-radius:var(--r-control)}.sk-ebook .paper-question,.sk-ebook .stest__q{border-radius:var(--r-row)}
@media print{.sk-ebook .cover{padding-inline:8mm}.sk-ebook .article__inner{box-sizing:border-box;padding-inline:3mm}.sk-ebook #saccade-fixation-mekanik,.sk-ebook #do-mode-gist-target{break-before:page}.sk-ebook .cover p{font-size:16px}.sk-ebook .cover .lhero{width:auto;max-width:100%}.sk-ebook .lfig>svg{width:210px}}

ol[type="A"]{list-style:none;padding-inline-start:0}.option-letter{display:inline-block;font-weight:700;margin-inline-end:8px}.sk-ebook .stest__q label{display:inline;line-height:1.9}.sk-ebook .stest__q input{display:inline-block;width:18px;height:18px;vertical-align:middle;margin-inline-end:8px}