:root {
  --page-bg: #f3f7f8;
  --surface: #ffffff;
  --surface-soft: #f8fbfc;
  --navy: #0d2145;
  --navy-2: #17355f;
  --text: #435168;
  --muted: #728096;
  --teal: #047f83;
  --teal-dark: #006d72;
  --teal-soft: #eef8f7;
  --blue: #0755bd;
  --blue-dark: #06449b;
  --blue-soft: #f0f5ff;
  --violet: #785da8;
  --violet-dark: #694e97;
  --violet-soft: #f6f1fb;
  --gold-soft: #fff8df;
  --red-soft: #fff2f3;
  --line: rgba(13, 33, 69, .09);
  --line-strong: rgba(13, 33, 69, .14);
  --shadow: 0 22px 66px rgba(18, 42, 66, .09);
  --shadow-sm: 0 12px 34px rgba(18, 42, 66, .075);
  --radius-xl: 34px;
  --radius-lg: 28px;
  --radius-md: 18px;
  --article-accent: var(--teal);
  --article-accent-dark: var(--teal-dark);
  --article-accent-soft: var(--teal-soft);
  --article-accent-ring: rgba(4, 127, 131, .08);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 25px;
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 4% 7%, rgba(4,127,131,.075), transparent 30rem),
    radial-gradient(circle at 97% 88%, rgba(7,85,189,.055), transparent 32rem),
    var(--page-bg);
  font-family: "Vazirmatn", Tahoma, Arial, sans-serif;
  line-height: 2;
}

body.article-theme-knowledge {
  --article-accent: var(--violet);
  --article-accent-dark: var(--violet-dark);
  --article-accent-soft: var(--violet-soft);
  --article-accent-ring: rgba(120, 93, 168, .09);
  background:
    radial-gradient(circle at 4% 7%, rgba(120,93,168,.08), transparent 30rem),
    radial-gradient(circle at 97% 88%, rgba(4,127,131,.05), transparent 32rem),
    var(--page-bg);
}

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

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

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(4,127,131,.26);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 9999;
  top: 10px;
  right: 10px;
  padding: 9px 14px;
  border-radius: 10px;
  color: #fff;
  background: var(--navy);
  transform: translateY(-150%);
  transition: transform .2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.svg-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.site-shell {
  width: min(1500px, calc(100% - 30px));
  margin: 15px auto;
  overflow: hidden;
  border: 1px solid rgba(13,33,69,.055);
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,.965);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

/* Header: identical visual system to the Decisiono homepage. */
.site-header {
  position: relative;
  z-index: 50;
  min-height: 82px;
  padding: 15px clamp(20px,4vw,58px);
  border-bottom: 1px solid rgba(13,33,69,.06);
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(16px);
}

.site-header .navbar {
  min-height: 52px;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 12px;
  color: var(--navy);
}

.brand-mark {
  position: relative;
  display: grid;
  width: 38px;
  height: 38px;
  border-radius: 13px;
  color: #fff;
  background: linear-gradient(145deg, #08a0a4, #006c72);
  box-shadow: 0 10px 24px rgba(4,127,131,.22);
  place-items: center;
}

.brand-mark::before,
.brand-mark::after {
  position: absolute;
  width: 7px;
  height: 7px;
  content: "";
  border: 2px solid currentColor;
  border-radius: 50%;
}

.brand-mark::before {
  top: 9px;
  right: 8px;
}

.brand-mark::after {
  bottom: 9px;
  left: 8px;
}

.brand-mark span {
  width: 14px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transform: rotate(-42deg);
}

.brand-copy {
  display: grid;
  line-height: 1.35;
}

.brand-name {
  color: var(--teal-dark);
  font-size: 1.08rem;
  font-weight: 800;
}

.brand-tagline {
  color: var(--muted);
  font-size: .72rem;
  font-weight: 600;
}

.desktop-nav {
  gap: 2px;
}

.desktop-nav .nav-link {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  gap: 6px;
  padding: 8px 11px !important;
  border-radius: 11px;
  color: #536176;
  font-size: .88rem;
  font-weight: 700;
  transition: color .2s ease, background .2s ease, transform .2s ease;
}

.desktop-nav .nav-link:hover,
.desktop-nav .nav-link:focus-visible,
.desktop-nav .nav-link.active,
.desktop-nav .show > .nav-link {
  color: var(--teal-dark);
  background: var(--teal-soft);
  transform: translateY(-1px);
}

.desktop-nav .dropdown-toggle::after {
  display: none;
}

.nav-chevron {
  width: 14px;
  height: 14px;
  transition: transform .2s ease;
}

.show > .nav-link .nav-chevron {
  transform: rotate(180deg);
}

.mega-dropdown {
  position: static;
}

.mega-menu {
  width: min(1000px, calc(100vw - 52px));
  margin-top: 13px !important;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255,255,255,.985);
  box-shadow: 0 24px 60px rgba(18,42,66,.16);
  inset-inline: auto !important;
  right: 50% !important;
  left: auto !important;
  transform: translateX(50%) !important;
}

.mega-group {
  height: 100%;
  padding: 15px;
  border: 1px solid rgba(13,33,69,.065);
  border-radius: 17px;
  background: #fbfcfd;
}

.mega-group--personal {
  --group-accent: var(--teal);
  --group-soft: var(--teal-soft);
}

.mega-group--work {
  --group-accent: var(--blue);
  --group-soft: var(--blue-soft);
}

.mega-group--knowledge {
  --group-accent: var(--violet);
  --group-soft: var(--violet-soft);
}

.mega-heading {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 8px;
  color: var(--navy);
  font-size: .96rem;
  font-weight: 800;
}

.mega-heading::before {
  width: 9px;
  height: 9px;
  content: "";
  border-radius: 50%;
  background: var(--group-accent);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--group-accent) 11%, transparent);
}

.mega-list {
  display: grid;
  gap: 3px;
}

.mega-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 6px 9px;
  border-radius: 9px;
  color: #5c697d;
  font-size: .82rem;
  font-weight: 600;
  transition: .2s ease;
}

.mega-list a:hover {
  color: var(--group-accent);
  background: var(--group-soft);
  transform: translateX(-2px);
}

.mega-all {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 9px;
  color: var(--group-accent);
  font-size: .8rem;
  font-weight: 800;
}

.mega-all svg {
  width: 16px;
  height: 16px;
}

.menu-button {
  display: grid;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 0;
  border-radius: 14px;
  color: var(--teal-dark);
  background: var(--teal-soft);
  place-items: center;
  transition: .2s ease;
}

.menu-button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.menu-button svg {
  width: 25px;
  height: 25px;
}

/* Article header. */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  padding: 17px clamp(20px,4.5vw,68px) 0;
  color: #7b8798;
  font-size: .77rem;
  font-weight: 650;
}

.crumbs span {
  margin: 0 7px;
  color: #a0aaba;
}

.crumbs a:hover {
  color: var(--article-accent-dark);
}

.hero {
  position: relative;
  overflow: hidden;
  margin: 14px clamp(14px,4vw,62px) 0;
  padding: clamp(48px,6.5vw,84px) clamp(22px,6vw,86px);
  border: 1px solid rgba(13,33,69,.075);
  border-radius: 31px;
  background:
    radial-gradient(circle at 8% 18%, rgba(4,127,131,.12), transparent 28rem),
    radial-gradient(circle at 95% 90%, rgba(7,85,189,.08), transparent 29rem),
    linear-gradient(145deg,#f7fbfb,#fff);
  box-shadow: var(--shadow-sm);
}

.hero::after {
  position: absolute;
  right: -120px;
  bottom: -170px;
  width: 360px;
  height: 360px;
  content: "";
  border-radius: 50%;
  background: radial-gradient(circle,rgba(4,127,131,.1),transparent 66%);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0,1fr) 150px;
  align-items: center;
  gap: 35px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--article-accent-dark);
  font-size: .85rem;
  font-weight: 800;
}

.eyebrow::before {
  width: 32px;
  height: 2px;
  content: "";
  border-radius: 99px;
  background: currentColor;
}

.hero h1 {
  max-width: 1050px;
  margin: 14px 0 17px;
  overflow-wrap: anywhere;
  color: var(--navy);
  font-size: clamp(2rem,3.8vw,4.1rem);
  font-weight: 900;
  line-height: 1.42;
  letter-spacing: -.045em;
}

.hero p {
  max-width: 930px;
  margin: 0;
  color: #59687c;
  font-size: clamp(.98rem,1.12vw,1.16rem);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 23px;
}

.chip {
  padding: 5px 11px;
  border: 1px solid color-mix(in srgb, var(--article-accent) 14%, transparent);
  border-radius: 99px;
  color: var(--article-accent-dark);
  background: var(--article-accent-soft);
  font-size: .74rem;
  font-weight: 800;
}

.symbol {
  display: grid;
  width: 145px;
  aspect-ratio: 1;
  border: 1px solid color-mix(in srgb, var(--article-accent) 14%, transparent);
  border-radius: 38px;
  color: var(--article-accent-dark);
  background: #fff;
  box-shadow: var(--shadow-sm);
  font: 900 2.7rem Arial;
  place-items: center;
}

.article-theme-knowledge .hero {
  color: #ece8f5;
  background:
    radial-gradient(circle at 8% 18%, rgba(191,160,228,.18), transparent 28rem),
    radial-gradient(circle at 95% 90%, rgba(53,184,173,.12), transparent 29rem),
    linear-gradient(135deg,#142345,#4f3a78);
  box-shadow: 0 25px 58px rgba(29,27,61,.19);
}

.article-theme-knowledge .hero::after {
  background: radial-gradient(circle,rgba(163,132,199,.2),transparent 66%);
}

.article-theme-knowledge .eyebrow {
  color: #cbb7e8;
}

.article-theme-knowledge .hero h1 {
  color: #fff;
}

.article-theme-knowledge .hero p {
  color: #ddd8e9;
}

.article-theme-knowledge .chip {
  border-color: rgba(255,255,255,.15);
  color: #eee8f7;
  background: rgba(255,255,255,.08);
}

.article-theme-knowledge .symbol {
  border-color: rgba(255,255,255,.14);
  color: #d7c4ee;
  background: rgba(255,255,255,.08);
  box-shadow: none;
  font-size: 3.5rem;
  backdrop-filter: blur(8px);
}

/* In-page navigation and responsive reading column. */
.mobile-toc {
  display: none;
  margin: 24px 16px 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
}

.mobile-toc summary {
  padding: 14px 16px;
  color: var(--navy);
  font-size: .84rem;
  font-weight: 800;
  cursor: pointer;
}

.mobile-toc nav {
  display: grid;
  max-height: 55vh;
  overflow-y: auto;
  padding: 0 16px 16px;
}

.mobile-toc a {
  padding: 6px 8px;
  border-radius: 8px;
  color: #637085;
  font-size: .77rem;
}

.mobile-toc a:hover {
  color: var(--article-accent-dark);
  background: var(--article-accent-soft);
}

.content {
  padding: clamp(48px,6vw,82px) clamp(18px,4.5vw,68px);
}

.layout {
  display: grid;
  grid-template-columns: 250px minmax(0,790px);
  justify-content: center;
  gap: clamp(34px,5vw,76px);
  direction: ltr;
}

.toc,
.article {
  min-width: 0;
  direction: rtl;
}

.toc > div {
  position: sticky;
  top: 24px;
  padding: 19px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fbfcfd;
}

.toc h2 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  color: var(--navy);
  font-size: .86rem;
  font-weight: 900;
}

.toc h2::before {
  width: 9px;
  height: 9px;
  content: "";
  border-radius: 50%;
  background: var(--article-accent);
  box-shadow: 0 0 0 5px var(--article-accent-ring);
}

.toc nav {
  display: grid;
}

.toc a {
  padding: 5px 9px;
  border-radius: 9px;
  color: #677488;
  font-size: .74rem;
  font-weight: 650;
}

.toc a:hover {
  color: var(--article-accent-dark);
  background: var(--article-accent-soft);
}

.intro {
  margin: 0 0 38px;
  color: #4d5c71;
  font-size: 1.04rem;
  line-height: 2.15;
}

.section {
  scroll-margin-top: 26px;
  margin-top: 52px;
}

.label {
  display: block;
  margin-bottom: 8px;
  color: var(--article-accent-dark);
  font-size: .73rem;
  font-weight: 900;
}

.article h2 {
  margin: 0 0 17px;
  overflow-wrap: anywhere;
  color: var(--navy);
  font-size: clamp(1.45rem,2.3vw,2.15rem);
  font-weight: 900;
  line-height: 1.6;
}

.article h3 {
  margin: 25px 0 9px;
  color: var(--navy-2);
  font-size: 1rem;
  font-weight: 850;
}

.article p {
  margin: 0 0 17px;
}

.article strong {
  color: var(--navy);
}

.lead {
  padding-right: 17px;
  border-right: 3px solid var(--article-accent);
  color: #34445c !important;
  font-weight: 650;
}

.module {
  margin: 27px 0;
  padding: 21px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 10px 28px rgba(18,42,66,.055);
}

.module h3 {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 9px;
}

.module h3::before {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  content: "";
  border-radius: 50%;
  background: var(--article-accent);
  box-shadow: 0 0 0 5px var(--article-accent-ring);
}

.module p:last-child {
  margin-bottom: 0;
}

.teal {
  border-color: rgba(4,127,131,.14);
  background: var(--teal-soft);
}

.violet {
  border-color: rgba(120,93,168,.15);
  background: var(--violet-soft);
}

.blue {
  background: var(--blue-soft);
}

.gold {
  background: var(--gold-soft);
}

.warning {
  background: var(--red-soft);
}

.statement {
  margin-top: 12px;
  padding: 14px 16px;
  border-radius: 13px;
  color: #24405e;
  background: rgba(255,255,255,.85);
  font-size: .88rem;
  font-weight: 700;
}

.table-wrap {
  max-width: 100%;
  margin: 26px 0;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 18px;
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  background: #fff;
  font-size: .8rem;
}

.data-table th,
.data-table td {
  padding: 12px 13px;
  border-bottom: 1px solid var(--line);
  text-align: right;
  vertical-align: top;
}

.data-table th {
  color: var(--navy);
  background: #f5f8f9;
  font-weight: 850;
}

.article-theme-knowledge .data-table th {
  background: #f7f6f9;
}

.data-table tr:last-child td {
  border-bottom: 0;
}

.data-table td:first-child {
  color: var(--navy);
  font-weight: 750;
}

/* Practical decision article modules. */
.criteria {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 12px;
  margin: 22px 0;
}

.criteria > div {
  min-width: 0;
  padding: 17px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
}

.criteria span {
  display: block;
  color: var(--teal-dark);
  font-size: .7rem;
  font-weight: 900;
}

.criteria b {
  display: block;
  margin: 4px 0;
  color: var(--navy);
}

.criteria p {
  margin: 0;
  color: #657286;
  font-size: .76rem;
}

.options {
  display: grid;
  grid-template-columns: repeat(4,minmax(0,1fr));
  gap: 9px;
  margin: 23px 0;
}

.options > div {
  min-width: 0;
  padding: 15px 10px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: #fbfcfd;
  text-align: center;
}

.options b {
  display: block;
  color: var(--navy);
  font-size: .8rem;
}

.options small {
  color: var(--muted);
  font-size: .65rem;
}

.versus {
  display: grid;
  grid-template-columns: 1fr 44px 1fr;
  align-items: center;
  gap: 10px;
  margin: 23px 0;
  padding: 19px;
  border: 1px solid rgba(4,127,131,.13);
  border-radius: 20px;
  background: linear-gradient(135deg,#f4fbfa,#fff);
}

.versus > div:not(.vs) {
  min-width: 0;
  padding: 12px;
  border-radius: 13px;
  background: #fff;
  text-align: center;
}

.versus b {
  display: block;
  color: var(--navy);
}

.versus small {
  color: var(--muted);
  font-size: .69rem;
}

.vs {
  display: grid;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  color: #fff;
  background: var(--teal-dark);
  font-size: .67rem;
  font-weight: 900;
  place-items: center;
}

.check {
  display: grid;
  gap: 10px;
  margin: 20px 0;
  padding: 0;
  list-style: none;
}

.check li {
  position: relative;
  margin: 0;
  padding: 12px 44px 12px 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  font-size: .82rem;
}

.check li::before {
  position: absolute;
  top: 12px;
  right: 14px;
  display: grid;
  width: 22px;
  height: 22px;
  content: "✓";
  border-radius: 7px;
  color: var(--teal-dark);
  background: var(--teal-soft);
  font-size: .72rem;
  font-weight: 900;
  place-items: center;
}

/* Knowledge article modules. */
.answer-box {
  margin: 0 0 42px;
  padding: 24px;
  border: 1px solid rgba(120,93,168,.16);
  border-radius: 22px;
  background: linear-gradient(135deg,var(--violet-soft),#fff);
  box-shadow: 0 12px 28px rgba(79,58,120,.07);
}

.answer-box span {
  color: var(--violet-dark);
  font-size: .72rem;
  font-weight: 900;
}

.answer-box p {
  margin: 7px 0 0;
  color: #35445d;
  font-size: 1.03rem;
  font-weight: 650;
}

.definition {
  margin: 26px 0;
  padding: 25px;
  border: 1px solid rgba(120,93,168,.16);
  border-radius: 22px;
  background: var(--violet-soft);
}

.definition small {
  display: block;
  margin-bottom: 6px;
  color: var(--violet-dark);
  font-size: .7rem;
  font-weight: 900;
}

.definition p {
  margin: 0;
  color: #2f3e57;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 2;
}

.mechanism {
  display: grid;
  grid-template-columns: repeat(4,minmax(0,1fr));
  gap: 10px;
  margin: 25px 0;
  direction: ltr;
}

.mechanism > div {
  position: relative;
  min-width: 0;
  padding: 18px 12px;
  border: 1px solid rgba(120,93,168,.13);
  border-radius: 17px;
  background: #fff;
  text-align: center;
  direction: rtl;
}

.mechanism > div:not(:last-child)::after {
  position: absolute;
  top: 50%;
  right: -18px;
  content: "→";
  color: var(--violet-dark);
  font: 900 1.1rem Arial;
}

.mechanism span {
  display: grid;
  width: 34px;
  height: 34px;
  margin: 0 auto 8px;
  border-radius: 11px;
  color: #fff;
  background: var(--violet-dark);
  font: 900 .82rem Arial;
  place-items: center;
}

.mechanism b {
  display: block;
  color: var(--navy);
  font-size: .75rem;
}

.mechanism small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: .62rem;
  line-height: 1.65;
}

.examples {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 13px;
  margin: 25px 0;
}

.example {
  min-width: 0;
  padding: 21px;
  border: 1px solid var(--line);
  border-radius: 19px;
  background: #fff;
}

.example.personal {
  border-top: 4px solid var(--teal);
}

.example.work {
  border-top: 4px solid var(--violet);
}

.example small {
  color: var(--muted);
  font-size: .68rem;
  font-weight: 850;
}

.example h3 {
  margin: 6px 0 9px;
  color: var(--navy);
}

.example p {
  margin: 0;
  font-size: .8rem;
  line-height: 1.95;
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 10px;
  margin: 22px 0;
}

.signal-list {
  padding: 0;
  list-style: none;
}

.signal {
  position: relative;
  min-width: 0;
  padding: 16px 43px 16px 14px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: #fff;
  font-size: .8rem;
}

.signal::before {
  position: absolute;
  top: 16px;
  right: 14px;
  width: 17px;
  height: 17px;
  content: "";
  border: 3px solid var(--violet);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(120,93,168,.07);
}

.method-list {
  display: grid;
  gap: 12px;
  margin: 23px 0;
  counter-reset: method;
}

.method {
  position: relative;
  padding: 18px 58px 18px 18px;
  border: 1px solid var(--line);
  border-radius: 17px;
  background: #fff;
}

.method::before {
  position: absolute;
  top: 17px;
  right: 16px;
  display: grid;
  width: 31px;
  height: 31px;
  content: counter(method);
  counter-increment: method;
  border-radius: 10px;
  color: #fff;
  background: var(--violet-dark);
  font: .75rem Arial;
  place-items: center;
}

.method b {
  display: block;
  color: var(--navy);
  font-size: .86rem;
}

.method p {
  margin: 4px 0 0;
  color: #637085;
  font-size: .77rem;
}

.sources {
  margin-top: 42px;
  padding-top: 27px;
  border-top: 1px solid var(--line);
}

.sources h2 {
  font-size: 1.25rem;
}

.sources ul {
  margin: 0;
  padding-right: 20px;
}

.sources li {
  margin-bottom: 8px;
  overflow-wrap: anywhere;
  color: #677488;
  font-size: .76rem;
}

.sources a {
  color: var(--violet-dark);
  font-weight: 750;
}

/* LIAM and article conclusion. */
.liam {
  display: grid;
  grid-template-columns: repeat(4,minmax(0,1fr));
  gap: 10px;
  margin: 23px 0;
  direction: ltr;
}

.liam > div {
  position: relative;
  min-width: 0;
  padding: 16px 10px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  text-align: center;
  direction: rtl;
}

.liam > div:not(:last-child)::after {
  position: absolute;
  top: 50%;
  right: -17px;
  content: "→";
  color: var(--article-accent-dark);
  font: 900 1.1rem Arial;
}

.liam span {
  display: grid;
  width: 37px;
  height: 37px;
  margin: 0 auto 8px;
  border-radius: 12px;
  color: #fff;
  background: var(--article-accent-dark);
  font: 900 .94rem Arial;
  place-items: center;
}

.liam b {
  display: block;
  color: var(--navy);
  font-size: .76rem;
}

.liam small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: .63rem;
}

.summary {
  margin-top: 54px;
  padding: clamp(24px,4vw,38px);
  border-radius: 25px;
  color: #d5e7e6;
  background: linear-gradient(135deg,#0b2945,#087874);
  box-shadow: 0 22px 48px rgba(8,39,72,.16);
}

.article-theme-knowledge .summary {
  color: #e6e0ef;
  background: linear-gradient(135deg,#142345,#4f3a78);
  box-shadow: 0 22px 48px rgba(29,27,61,.18);
}

.summary .summary-label {
  color: #8bdad5;
}

.article-theme-knowledge .summary .summary-label {
  color: #cbb7e8;
}

.summary h2 {
  color: #fff;
}

.summary p {
  margin-bottom: 0;
}

.related {
  padding: clamp(48px,6vw,76px) clamp(18px,4.5vw,68px);
  border-top: 1px solid var(--line);
  background: #f8fbfc;
}

.article-theme-knowledge .related {
  background: #faf9fc;
}

.related h2 {
  margin: 0;
  text-align: center;
  color: var(--navy);
  font-size: clamp(1.5rem,2.5vw,2.3rem);
  font-weight: 900;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3,minmax(0,1fr));
  gap: 15px;
  width: min(1040px,100%);
  margin: 24px auto 0;
}

.related-card {
  display: flex;
  min-width: 0;
  min-height: 165px;
  flex-direction: column;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 19px;
  background: #fff;
  transition: transform .2s ease, box-shadow .2s ease;
}

.related-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}

.related-card small,
.related-card span {
  color: var(--article-accent-dark);
  font-size: .68rem;
  font-weight: 850;
}

.related-card b {
  margin: 9px 0;
  overflow-wrap: anywhere;
  color: var(--navy);
  font-size: .9rem;
}

.related-card span {
  margin-top: auto;
}

/* Footer: identical visual system and content grid to the homepage. */
.site-footer {
  padding: clamp(42px,5vw,64px) clamp(22px,4.5vw,68px) 22px;
  border-top: 1px solid rgba(13,33,69,.07);
  background: #f8fbfc;
}

.footer-title {
  margin: 0 0 13px;
  color: var(--navy);
  font-size: .92rem;
  font-weight: 800;
}

.footer-links {
  display: grid;
  gap: 8px;
}

.footer-links a {
  width: fit-content;
  color: #637085;
  font-size: .82rem;
  font-weight: 600;
  transition: color .2s ease, transform .2s ease;
}

.footer-links a:hover {
  color: var(--teal-dark);
  transform: translateX(-3px);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 34px;
  padding-top: 18px;
  border-top: 1px solid rgba(13,33,69,.07);
  color: #8490a1;
  font-size: .75rem;
}

.footer-heart {
  color: #e63946;
}

/* Mobile navigation copied from the homepage structure. */
.offcanvas {
  --tfc-offcanvas-width: min(390px, 90vw);
  color: var(--navy);
}

.offcanvas-brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--teal-dark);
  font-weight: 800;
}

.offcanvas-brand::before {
  width: 11px;
  height: 11px;
  content: "";
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 5px rgba(4,127,131,.08);
}

.offcanvas .nav-link {
  padding: 10px 12px;
  border-radius: 11px;
  color: #4e5c70;
  font-size: .9rem;
  font-weight: 700;
}

.offcanvas .nav-link:hover {
  color: var(--teal-dark);
  background: var(--teal-soft);
}

.mobile-accordion .accordion-item {
  border: 0;
  border-bottom: 1px solid rgba(13,33,69,.07);
}

.mobile-accordion .accordion-button {
  padding: 13px 12px;
  color: var(--navy);
  background: transparent;
  box-shadow: none;
  font-size: .9rem;
  font-weight: 800;
}

.mobile-accordion .accordion-button:not(.collapsed) {
  color: var(--teal-dark);
  background: var(--teal-soft);
}

.mobile-subgroup {
  margin-bottom: 15px;
}

.mobile-subgroup strong {
  display: block;
  margin-bottom: 5px;
  color: var(--navy);
  font-size: .82rem;
}

.mobile-subgroup a {
  display: block;
  padding: 5px 7px;
  color: #6a7688;
  font-size: .78rem;
}

@media (max-width: 1199.98px) {
  .brand-tagline {
    display: none;
  }

  .desktop-nav .nav-link {
    padding-inline: 8px !important;
    font-size: .83rem;
  }
}

@media (max-width: 991.98px) {
  .site-shell {
    width: calc(100% - 16px);
    margin-block: 8px;
    border-radius: 27px;
  }

  .site-header {
    min-height: 72px;
    padding: 12px 18px;
  }

  .hero {
    margin-inline: 10px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .eyebrow,
  .chips {
    justify-content: center;
  }

  .symbol {
    display: none;
  }

  .layout {
    grid-template-columns: minmax(0,1fr);
  }

  .toc {
    display: none;
  }

  .mobile-toc {
    display: block;
  }

  .article {
    width: min(760px,100%);
    margin-inline: auto;
  }

  .related-grid {
    grid-template-columns: repeat(2,minmax(0,1fr));
  }
}

@media (max-width: 767.98px) {
  body {
    line-height: 1.9;
  }

  .crumbs {
    padding-inline: 18px;
    font-size: .72rem;
  }

  .hero {
    margin-inline: 5px;
    padding: 38px 17px 42px;
    border-radius: 23px;
  }

  .hero h1 {
    font-size: clamp(1.9rem,9.5vw,2.8rem);
    letter-spacing: -.03em;
  }

  .content {
    padding: 45px 15px;
  }

  .criteria,
  .options,
  .examples,
  .signal-grid,
  .related-grid {
    grid-template-columns: minmax(0,1fr);
  }

  .versus {
    grid-template-columns: minmax(0,1fr);
  }

  .vs {
    margin-inline: auto;
  }

  .mechanism,
  .liam {
    grid-template-columns: minmax(0,1fr);
    direction: rtl;
  }

  .mechanism > div:not(:last-child)::after,
  .liam > div:not(:last-child)::after {
    top: auto;
    right: 50%;
    bottom: -18px;
    content: "↓";
    transform: translateX(50%);
  }

  .related-card {
    min-height: 0;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 575.98px) {
  .site-shell {
    width: calc(100% - 10px);
    margin-block: 5px;
    border-radius: 22px;
  }

  .site-header {
    padding: 10px 13px;
  }

  .brand-mark {
    width: 35px;
    height: 35px;
    border-radius: 12px;
  }

  .brand-name {
    font-size: 1rem;
  }

  .menu-button {
    width: 43px;
    height: 43px;
  }

  .crumbs {
    padding-top: 13px;
    padding-inline: 14px;
  }

  .hero {
    padding: 33px 15px 37px;
  }

  .hero p {
    font-size: .92rem;
  }

  .chip {
    font-size: .68rem;
  }

  .mobile-toc {
    margin-inline: 10px;
  }

  .content {
    padding: 38px 12px;
  }

  .intro {
    font-size: .96rem;
    line-height: 2.05;
  }

  .section {
    margin-top: 43px;
  }

  .article h2 {
    font-size: 1.43rem;
  }

  .lead {
    padding-right: 13px;
  }

  .module,
  .definition,
  .answer-box {
    padding: 17px;
    border-radius: 17px;
  }

  .statement {
    padding: 12px;
    font-size: .82rem;
  }

  .data-table {
    min-width: 560px;
    font-size: .76rem;
  }

  .data-table th,
  .data-table td {
    padding: 10px;
  }

  .method {
    padding: 16px 53px 16px 14px;
  }

  .summary {
    padding: 23px 17px;
    border-radius: 21px;
  }

  .related {
    padding-inline: 13px;
  }

  .site-footer {
    padding: 37px 17px 18px;
  }
}

@media (max-width: 389.98px) {
  .hero h1 {
    font-size: 1.82rem;
  }

  .chips {
    gap: 6px;
  }

  .chip {
    padding-inline: 9px;
  }

  .content {
    padding-inline: 10px;
  }

  .module h3 {
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}

@media print {
  body {
    background: #fff;
  }

  .site-shell {
    width: 100%;
    margin: 0;
    border: 0;
    box-shadow: none;
  }

  .site-header,
  .crumbs,
  .mobile-toc,
  .toc,
  .related,
  .site-footer,
  .offcanvas {
    display: none !important;
  }

  .hero {
    margin: 0;
    color: var(--text);
    background: #fff;
    box-shadow: none;
  }

  .article-theme-knowledge .hero h1,
  .article-theme-knowledge .hero p {
    color: var(--text);
  }

  .content {
    padding: 30px;
  }

  .layout {
    display: block;
  }
}