:root {
  --ink: #172033;
  --muted: #5f6878;
  --paper: #fbfaf7;
  --paper-2: #f2f4f4;
  --line: #d8dde0;
  --navy: #17324d;
  --blue: #315f7b;
  --teal: #3e7b78;
  --sage: #dfe8e3;
  --cream: #f3eee2;
  --white: #ffffff;
  --shadow: 0 18px 48px rgba(23, 32, 51, 0.08);
  --sans: 'Source Sans 3', 'Aptos', 'Segoe UI', system-ui, sans-serif;
  --serif: 'Source Serif 4', 'Iowan Old Style', Georgia, serif;
  --max: 1200px;
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.58;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { max-width: 100%; }
button, input { font: inherit; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 9999;
  padding: .65rem 1rem; background: var(--ink); color: white;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.shell { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }

.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(251,250,247,.94);
  border-bottom: 1px solid rgba(216,221,224,.85);
}
.navbar {
  min-height: 76px;
  display: flex; align-items: center; justify-content: space-between; gap: 28px;
}
/* Desktop: the nav sits right, beside a fixed slot that progress.js fills with the
   account button later, so nothing in the header moves when it arrives. */
@media (min-width: 961px) {
  .site-header .navbar { position: relative; padding-right: 140px; }
  .site-header .navbar > nav { margin-left: auto; }
  .site-header .navbar .ai2-acct { position: absolute; right: 0; top: 50%; transform: translateY(-50%); margin: 0; }
}
/* Narrow: the nav is a drop-down, so take its wrapper out of the row and the menu button stays put. */
@media (max-width: 960px) {
  .site-header .navbar > nav { position: absolute; }
}
.brand {
  text-decoration: none;
  display: inline-flex; align-items: baseline; gap: 1px;
  font-weight: 700; letter-spacing: -0.035em; font-size: 1.34rem;
  color: var(--navy);
}
.brand .brand-two { color: var(--teal); }
.brand small {
  margin-left: 8px; font-weight: 600; font-size: .69rem; letter-spacing: .08em;
  text-transform: uppercase; color: var(--muted);
}
.nav-links { display: flex; align-items: center; gap: 5px; list-style: none; padding: 0; margin: 0; }
.nav-links a {
  text-decoration: none; padding: 9px 11px; border-radius: 10px;
  font-size: .92rem; font-weight: 600; color: #394355;
}
.nav-links a:hover, .nav-links a[aria-current='page'] { background: #edf1ef; color: var(--navy); }
.nav-links .brief-link { border: 1px solid var(--line); margin-left: 4px; }
.nav-toggle { display: none; border: 0; background: transparent; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0; }

.hero { padding: 86px 0 72px; border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: minmax(0,1.35fr) minmax(320px,.65fr); gap: 72px; align-items: center; }
.eyebrow {
  display: inline-flex; gap: 9px; align-items: center;
  margin: 0 0 18px; text-transform: uppercase; letter-spacing: .11em;
  font-size: .76rem; font-weight: 700; color: var(--blue);
}
.eyebrow::before { content: ''; width: 28px; height: 2px; background: var(--teal); }
h1, h2, .serif { font-family: var(--serif); }
h1 {
  font-size: clamp(3rem, 6.2vw, 5.8rem); line-height: .98; letter-spacing: -.055em;
  font-weight: 500; margin: 0 0 24px; color: var(--navy); max-width: 900px;
}
.hero .lead { font-size: 1.26rem; line-height: 1.56; color: #4f5968; max-width: 720px; margin: 0 0 28px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  text-decoration: none; display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 11px 17px; border-radius: 10px; font-weight: 700; font-size: .93rem;
}
.btn-primary { background: var(--navy); color: white; }
.btn-primary:hover { background: #102940; }
.btn-secondary { border: 1px solid #bbc4ca; background: rgba(255,255,255,.55); }
.btn-secondary:hover { background: white; }

.brief-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px;
  box-shadow: var(--shadow); position: relative; overflow: hidden;
}
.brief-card::before { content: ''; position: absolute; inset: 0 0 auto; height: 6px; background: linear-gradient(90deg,var(--navy),var(--teal)); }
.brief-card .kicker { font-size: .73rem; text-transform: uppercase; letter-spacing: .12em; font-weight: 700; color: var(--teal); }
.brief-card h2 { font-size: 2rem; line-height: 1.08; margin: 8px 0 10px; font-weight: 500; letter-spacing: -.03em; }
.brief-card p { color: var(--muted); margin: 0 0 16px; }
.text-link { color: var(--navy); text-decoration-thickness: 1px; text-underline-offset: 4px; font-weight: 700; }

.section { padding: 82px 0; }
.section.alt { background: var(--paper-2); }
.section.dark { background: var(--navy); color: white; }
.section-head { display: grid; grid-template-columns: .75fr 1.25fr; gap: 56px; margin-bottom: 42px; align-items: end; }
.section-head h2 { font-size: clamp(2.3rem,4vw,4rem); line-height: 1.03; letter-spacing: -.045em; margin: 0; font-weight: 500; }
.section-head p { margin: 0; color: var(--muted); max-width: 700px; font-size: 1.05rem; }
.dark .section-head p { color: #cad4dd; }

.path-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.path-card {
  background: white; border: 1px solid var(--line); border-radius: 18px; padding: 26px; min-height: 365px;
  display: flex; flex-direction: column;
}
.path-card .num { font-size: .74rem; font-weight: 700; letter-spacing: .11em; color: var(--teal); text-transform: uppercase; }
.path-card h3 { font-family: var(--serif); font-size: 2rem; line-height: 1.08; margin: 15px 0 5px; font-weight: 500; letter-spacing: -.025em; color: var(--navy); }
.path-card .verb { font-weight: 700; color: var(--blue); margin-bottom: 14px; }
.path-card p { color: var(--muted); margin: 0 0 18px; }
.module-list { list-style: none; padding: 0; margin: auto 0 18px; border-top: 1px solid var(--line); }
.module-list li { padding: 10px 0; border-bottom: 1px solid #e6e9ea; font-size: .92rem; }

.lifecycle { display: grid; grid-template-columns: repeat(5,1fr); gap: 0; margin-top: 22px; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: white; }
.lifecycle div { padding: 18px 16px; position: relative; min-height: 112px; }
.lifecycle div + div { border-left: 1px solid var(--line); }
.lifecycle b { display: block; font-size: .9rem; color: var(--navy); margin-bottom: 5px; }
.lifecycle span { font-size: .82rem; color: var(--muted); line-height: 1.35; display: block; }
.lifecycle .step { color: var(--teal); font-size: .69rem; text-transform: uppercase; letter-spacing: .1em; font-weight: 700; }

.role-grid { display: grid; grid-template-columns: repeat(4,1fr); border-top: 1px solid #64788b; border-left: 1px solid #64788b; }
.role-card { min-height: 235px; padding: 24px; border-right: 1px solid #64788b; border-bottom: 1px solid #64788b; text-decoration: none; }
.role-card:hover { background: rgba(255,255,255,.05); }
.role-card .role-num { font-size: .72rem; color: #9fc5bd; text-transform: uppercase; letter-spacing: .11em; font-weight: 700; }
.role-card h3 { font-size: 1.2rem; margin: 48px 0 8px; }
.role-card p { font-size: .9rem; color: #c5d0d9; margin: 0; }

.split-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.feature-panel { padding: 34px; border-radius: 18px; border: 1px solid var(--line); background: white; }
.feature-panel.sage { background: var(--sage); border-color: transparent; }
.feature-panel.cream { background: var(--cream); border-color: transparent; }
.feature-panel h3 { font-family: var(--serif); font-size: 2rem; line-height: 1.1; font-weight: 500; letter-spacing: -.025em; margin: 0 0 12px; }
.feature-panel p { color: #52606a; margin: 0 0 18px; }
.pill-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.pill { border: 1px solid rgba(23,50,77,.18); border-radius: 999px; padding: 6px 10px; font-size: .78rem; font-weight: 600; }

.brief-list { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 18px; }
.brief-item { border-top: 3px solid var(--navy); padding: 20px 2px 0; }
.brief-item .meta { text-transform: uppercase; letter-spacing: .1em; font-size: .7rem; color: var(--teal); font-weight: 700; }
.brief-item h3 { font-family: var(--serif); font-size: 1.7rem; line-height: 1.12; font-weight: 500; letter-spacing: -.02em; margin: 10px 0; }
.brief-item p { color: var(--muted); margin: 0 0 10px; font-size: .93rem; }

.page-hero { padding: 74px 0 54px; border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(3rem,5vw,5rem); max-width: 980px; }
.page-hero p { max-width: 780px; font-size: 1.16rem; color: var(--muted); }
.breadcrumbs { font-size: .78rem; text-transform: uppercase; letter-spacing: .1em; font-weight: 700; color: var(--teal); margin-bottom: 18px; }
.content-grid { display: grid; grid-template-columns: 300px minmax(0,1fr); gap: 62px; }
.side-nav { position: sticky; top: 105px; align-self: start; border-top: 1px solid var(--line); }
.side-nav a { display: block; text-decoration: none; padding: 11px 2px; border-bottom: 1px solid var(--line); font-size: .91rem; font-weight: 600; color: #4f5968; }
.side-nav a:hover { color: var(--navy); }
.article h2 { font-size: 2.35rem; line-height: 1.08; margin: 0 0 15px; font-weight: 500; }
.article h3 { font-size: 1.18rem; margin-top: 32px; }
.article p, .article li { color: #4f5968; }
.article section { margin-bottom: 52px; }
.callout { border-left: 4px solid var(--teal); background: #eef3f0; padding: 18px 20px; border-radius: 0 12px 12px 0; }
.lesson-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; }
.lesson-card { border: 1px solid var(--line); border-radius: 14px; padding: 20px; background: white; }
.lesson-card .label { font-size: .68rem; text-transform: uppercase; letter-spacing: .1em; font-weight: 700; color: var(--teal); }
.lesson-card h3 { font-family: var(--serif); font-size: 1.35rem; margin: 7px 0 8px; font-weight: 500; }
.lesson-card p { margin: 0; font-size: .9rem; }

.site-footer { padding: 52px 0 34px; background: #111b2a; color: white; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3,1fr); gap: 36px; }
.footer-brand p { color: #aeb9c3; max-width: 340px; font-size: .9rem; }
.footer-col h4 { margin: 2px 0 12px; font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; color: #9fc5bd; }
.footer-col a { display: block; color: #d1d8de; text-decoration: none; margin: 7px 0; font-size: .9rem; }
.footer-bottom { border-top: 1px solid #314052; margin-top: 34px; padding-top: 20px; display: flex; justify-content: space-between; gap: 20px; color: #91a0ae; font-size: .79rem; }

@media (max-width: 960px) {
  .nav-toggle { display: block; }
  .nav-links { position: fixed; inset: 76px 0 auto; background: var(--paper); padding: 18px 20px 24px; border-bottom: 1px solid var(--line); display: none; flex-direction: column; align-items: stretch; }
  .nav-links.open { display: flex; }
  .nav-links a { display: block; }
  .hero-grid, .section-head, .content-grid { grid-template-columns: 1fr; gap: 34px; }
  .hero { padding-top: 62px; }
  .path-grid { grid-template-columns: 1fr; }
  .path-card { min-height: auto; }
  .lifecycle { grid-template-columns: 1fr; }
  .lifecycle div + div { border-left: 0; border-top: 1px solid var(--line); }
  .role-grid { grid-template-columns: repeat(2,1fr); }
  .brief-list { grid-template-columns: 1fr; }
  .side-nav { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .shell { width: min(calc(100% - 28px), var(--max)); }
  .brand small { display: none; }
  .hero { padding: 48px 0 52px; }
  h1 { font-size: clamp(2.65rem,14vw,4rem); }
  .hero-grid { gap: 40px; }
  .section { padding: 58px 0; }
  .split-grid, .lesson-grid, .role-grid, .footer-grid { grid-template-columns: 1fr; }
  .role-card { min-height: 190px; }
  .footer-bottom { flex-direction: column; }
}


/* Integration helpers */
.curriculum-bridge {
  margin: 26px 0 22px;
  padding: 26px;
  display: grid;
  grid-template-columns: 1.35fr .65fr;
  gap: 28px;
  align-items: center;
  background: var(--sage);
  border-radius: 16px;
}
.curriculum-bridge h3 { font-family: var(--serif); font-size: 1.8rem; font-weight: 500; margin: 0 0 8px; color: var(--navy); }
.curriculum-bridge p:not(.eyebrow) { margin: 0; color: #52606a; }
.curriculum-bridge .hero-actions { justify-content: flex-end; }
.linked-card { display: block; text-decoration: none; transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease; }
.linked-card:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(23,32,51,.08); border-color: #b9c5c7; }
.linked-card .text-link { display: inline-block; margin-top: 14px; }
@media (max-width: 760px) {
  .curriculum-bridge { grid-template-columns: 1fr; }
  .curriculum-bridge .hero-actions { justify-content: flex-start; }
}

/* --------------------------------------------------------------------------
   Editorial front door — approved AI2Practice homepage direction
   -------------------------------------------------------------------------- */
.home-page {
  --editorial-navy: #0d2342;
  --editorial-blue: #006eb6;
  --editorial-cyan: #08a9e6;
  --editorial-teal: #0e8177;
  --editorial-paper: #fffdf8;
  --editorial-line: #d9d3c6;
  --educator-blue: #e4f3fa;
  background: var(--editorial-paper);
  color: #111820;
}
.home-page .shell { width: min(calc(100% - 48px), 1120px); }
.home-page .site-header {
  position: relative;
  background: var(--editorial-paper);
  backdrop-filter: none;
  border-bottom: 1px solid var(--editorial-line);
}
.editorial-header .navbar { min-height: 74px; gap: 24px; }
.brand-logo { flex: 0 0 auto; display: inline-flex; align-items: center; }
.brand-logo img { display: block; width: 158px; height: auto; }
.editorial-nav { gap: 2px; }
.editorial-nav a {
  padding: 9px 10px;
  border-radius: 0;
  font-size: .79rem;
  line-height: 1.15;
  font-weight: 600;
  color: #283544;
}
.editorial-nav a:hover,
.editorial-nav a[aria-current='page'] { background: transparent; color: var(--editorial-blue); }
.editorial-nav .start-link {
  background: var(--editorial-navy);
  color: #fff;
  padding: 13px 18px;
  margin-left: 8px;
}
.editorial-nav .start-link:hover { background: #17365f; color: #fff; }

.editorial-hero { border-bottom: 0; }
.editorial-hero-grid {
  display: grid;
  grid-template-columns: 54% 46%;
  align-items: stretch;
}
.editorial-hero-copy {
  min-height: 520px;
  padding: 76px 62px 74px 8px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.micro-label {
  margin: 0 0 18px;
  color: var(--editorial-blue);
  font-size: .72rem;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: .105em;
  text-transform: uppercase;
}
.micro-label.on-dark { color: #24b8ee; }
.editorial-hero h1 {
  max-width: 560px;
  margin: 0 0 25px;
  font-family: var(--serif);
  font-size: clamp(3.6rem, 5.5vw, 5.45rem);
  line-height: .92;
  letter-spacing: -.05em;
  font-weight: 600;
  color: #101820;
}
.hero-deck {
  max-width: 510px;
  margin: 0 0 28px;
  color: #66717a;
  font-size: 1rem;
  line-height: 1.65;
}
.compact-actions { gap: 12px; }
.compact-actions .btn {
  min-height: 43px;
  border-radius: 4px;
  padding: 10px 16px;
  font-size: .8rem;
  font-weight: 700;
}
.btn-accent { background: var(--editorial-cyan); color: #fff; }
.btn-accent:hover { background: #008ec5; }
.btn-outline { border: 1px solid #aeb7be; background: transparent; color: #172033; }
.btn-outline:hover { border-color: #172033; background: transparent; }

.brief-front {
  background: var(--editorial-navy);
  color: #fff;
  padding: 58px 52px 48px;
  min-height: 520px;
  display: flex;
  flex-direction: column;
}
.brief-front-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255,255,255,.28);
}
.brief-front-head .micro-label { margin-bottom: 10px; }
.brief-front-head h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: 2rem;
  line-height: 1;
  font-weight: 500;
  letter-spacing: -.03em;
}
.brief-front-head > a {
  color: #fff;
  text-decoration: none;
  font-size: .74rem;
  font-weight: 700;
  white-space: nowrap;
}
.brief-front-item {
  display: block;
  padding: 20px 0;
  color: #fff;
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,.25);
}
.brief-front-item:last-child { border-bottom: 0; }
.brief-front-item span {
  display: block;
  margin-bottom: 6px;
  color: #24b8ee;
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.brief-front-item strong {
  display: block;
  max-width: 360px;
  font-family: var(--serif);
  font-size: 1.17rem;
  line-height: 1.16;
  font-weight: 600;
}
.brief-front-item small {
  display: block;
  max-width: 390px;
  margin-top: 6px;
  color: #c8d1dc;
  font-size: .77rem;
  line-height: 1.4;
}

.field-guide { padding: 72px 0 0; }
.field-guide-head {
  display: grid;
  grid-template-columns: .92fr 1.08fr;
  gap: 56px;
  align-items: end;
  padding-bottom: 25px;
  border-bottom: 1px solid var(--editorial-line);
}
.field-guide-head .micro-label { margin-bottom: 10px; }
.field-guide-head h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.4rem, 4vw, 3.55rem);
  line-height: .97;
  letter-spacing: -.045em;
  font-weight: 600;
  color: #101820;
}
.field-guide-head > p {
  margin: 0 0 4px;
  color: #64717b;
  font-family: var(--serif);
  font-size: .95rem;
  line-height: 1.45;
  text-align: right;
}
.field-guide-core { padding: 24px 0 0; }
.section-tag {
  margin: 0 0 20px;
  color: #6d7478;
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .095em;
  text-transform: uppercase;
}
.core-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--editorial-line);
}
.core-column { min-height: 236px; padding: 0 42px 30px 0; }
.core-column + .core-column { padding-left: 48px; border-left: 1px solid var(--editorial-line); }
.core-number {
  display: block;
  margin-bottom: 28px;
  color: var(--editorial-blue);
  font-size: .69rem;
  line-height: 1.2;
  font-weight: 800;
  font-style: italic;
}
.core-column h3 {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-size: 1.8rem;
  line-height: 1.05;
  font-weight: 600;
  letter-spacing: -.025em;
}
.core-column p { max-width: 410px; margin: 0 0 12px; color: #64717b; font-size: .9rem; line-height: 1.55; }
.core-column a { color: var(--editorial-blue); font-size: .78rem; font-weight: 800; text-decoration: none; }

.leadership-extension {
  margin-top: 28px;
  padding: 34px 38px 32px;
  background: #163a69;
  color: #fff;
}
.leadership-topline {
  display: grid;
  grid-template-columns: 1fr .95fr;
  gap: 50px;
  align-items: end;
  padding-bottom: 22px;
  border-bottom: 1px solid rgba(255,255,255,.30);
}
.leadership-topline .micro-label { margin-bottom: 7px; }
.leadership-topline h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 2rem;
  line-height: 1;
  font-weight: 500;
}
.leadership-topline > p { margin: 0; color: #e2eaf2; font-size: .78rem; line-height: 1.45; text-align: right; }
.lifecycle-rail {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  padding-top: 19px;
}
.lifecycle-rail a {
  position: relative;
  min-height: 92px;
  padding: 0 27px 0 0;
  color: #fff;
  text-decoration: none;
}
.lifecycle-rail a:not(:last-child)::after {
  content: '→';
  position: absolute;
  top: 1px;
  right: 9px;
  color: #44c2e9;
  font-weight: 800;
}
.lifecycle-rail b { display: block; margin-bottom: 9px; font-size: .74rem; line-height: 1.25; }
.lifecycle-rail span { display: block; color: #d3dfeb; font-size: .7rem; line-height: 1.45; }

.learning-path-strip {
  display: grid;
  grid-template-columns: 1.15fr repeat(4, 1fr);
  gap: 0;
  margin-top: 30px;
  padding: 24px 0;
  border-top: 1px solid var(--editorial-line);
  border-bottom: 1px solid var(--editorial-line);
}
.learning-path-strip h3 { margin: 0; font-family: var(--serif); font-size: 1.05rem; line-height: 1.1; }
.learning-path-strip > a {
  display: block;
  padding: 0 18px;
  color: #172033;
  text-decoration: none;
  border-left: 1px solid #e2ded4;
}
.learning-path-strip b { display: block; font-size: .78rem; line-height: 1.2; }
.learning-path-strip span { display: block; margin-top: 5px; color: #707982; font-size: .7rem; line-height: 1.35; }

.educator-band,
.research-band {
  margin-top: 34px;
  padding: 34px 40px;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 46px;
  align-items: center;
}
.educator-band { background: var(--educator-blue); }
.educator-band .micro-label { margin-bottom: 9px; }
.educator-band h3,
.research-band h3 {
  margin: 0 0 9px;
  font-family: var(--serif);
  font-size: 2rem;
  line-height: 1;
  letter-spacing: -.025em;
  font-weight: 600;
}
.educator-band p:not(.micro-label), .research-band p:not(.micro-label) { margin: 0; max-width: 540px; font-size: .78rem; line-height: 1.5; }
.band-actions { display: flex; justify-content: flex-end; gap: 9px; flex-wrap: wrap; }
.band-actions a {
  padding: 10px 13px;
  border: 1px solid #78a8be;
  color: #14314c;
  text-decoration: none;
  font-size: .72rem;
  font-weight: 700;
  background: rgba(255,255,255,.32);
}
.research-band { background: var(--editorial-teal); color: #fff; }
.research-band p:not(.micro-label) { color: #e3f4f1; }
.research-links { display: grid; grid-template-columns: 1fr 1fr; }
.research-links a {
  min-height: 54px;
  padding: 12px 14px;
  border: 1px solid rgba(255,255,255,.5);
  color: #fff;
  text-decoration: none;
  font-size: .75rem;
  font-weight: 700;
}
.research-links a:nth-child(even) { border-left: 0; }
.research-links a:nth-child(n+3) { border-top: 0; }

.featured-lessons { padding: 38px 0 52px; }
.featured-head { display: flex; align-items: baseline; justify-content: space-between; gap: 30px; }
.featured-head h3 { margin: 0; font-family: var(--serif); font-size: 1.5rem; font-weight: 600; }
.featured-head > a { color: var(--editorial-blue); text-decoration: none; font-size: .74rem; font-weight: 800; }
.featured-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; margin-top: 26px; }
.featured-grid > a { color: #172033; text-decoration: none; }
.featured-grid span { display: block; margin-bottom: 8px; color: var(--editorial-blue); font-size: .67rem; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; }
.featured-grid b { display: block; margin-bottom: 7px; font-family: var(--serif); font-size: 1.03rem; line-height: 1.18; }
.featured-grid small { display: block; color: #6d767f; font-size: .74rem; line-height: 1.45; }

.compact-footer { padding: 22px 0; background: #0d1d32; }
.compact-footer-row { display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.footer-mini-brand { display: flex; align-items: center; gap: 14px; color: #bac6d2; font-size: .7rem; }
.footer-mini-brand img { width: 96px; height: auto; }
.compact-footer nav { display: flex; gap: 15px; }
.compact-footer nav a { color: #d8e0e8; text-decoration: none; font-size: .69rem; }

/* Give the redesigned interior pages the same compact editorial masthead. */
body:not(.home-page) .brand { font-size: 1.16rem; }
body:not(.home-page) .site-header { background: rgba(255,253,248,.96); }

@media (max-width: 1040px) {
  .editorial-header .navbar { min-height: 68px; }
  .editorial-header .nav-toggle { display: block; }
  .editorial-header .nav-links {
    position: absolute;
    inset: 68px 0 auto;
    z-index: 101;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 14px 24px 22px;
    background: var(--editorial-paper);
    border-bottom: 1px solid var(--editorial-line);
  }
  .editorial-header .nav-links.open { display: flex; }
  .editorial-nav .start-link { margin: 4px 0 0; text-align: center; }
  .editorial-hero-grid { grid-template-columns: 1fr 1fr; }
  .editorial-hero-copy { padding-right: 40px; }
  .brief-front { padding-left: 36px; padding-right: 36px; }
}

@media (max-width: 800px) {
  .home-page .shell { width: min(calc(100% - 30px), 1120px); }
  .brand-logo img { width: 144px; }
  .editorial-hero-grid { grid-template-columns: 1fr; }
  .editorial-hero-copy { min-height: auto; padding: 58px 8px 52px; }
  .editorial-hero h1 { font-size: clamp(3.25rem, 13vw, 5rem); }
  .brief-front { min-height: auto; margin: 0 -15px; padding: 42px 30px 32px; }
  .field-guide { padding-top: 56px; }
  .field-guide-head, .leadership-topline, .educator-band, .research-band { grid-template-columns: 1fr; gap: 20px; }
  .field-guide-head > p, .leadership-topline > p { text-align: left; }
  .core-columns { grid-template-columns: 1fr; }
  .core-column { min-height: auto; padding: 0 0 30px; }
  .core-column + .core-column { padding: 30px 0; border-left: 0; border-top: 1px solid var(--editorial-line); }
  .core-number { margin-bottom: 16px; }
  .lifecycle-rail { grid-template-columns: 1fr; }
  .lifecycle-rail a { min-height: auto; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,.22); }
  .lifecycle-rail a:not(:last-child)::after { content: ''; }
  .learning-path-strip { grid-template-columns: 1fr 1fr; row-gap: 22px; }
  .learning-path-intro { grid-column: 1 / -1; }
  .learning-path-strip > a:nth-of-type(odd) { border-left: 0; padding-left: 0; }
  .band-actions { justify-content: flex-start; }
  .featured-grid { grid-template-columns: 1fr; gap: 25px; }
}

@media (max-width: 520px) {
  .editorial-hero-copy { padding-top: 46px; }
  .editorial-hero h1 { font-size: 3.15rem; }
  .compact-actions { flex-direction: column; align-items: stretch; }
  .brief-front-head { align-items: flex-start; }
  .brief-front-head h2 { font-size: 1.75rem; }
  .leadership-extension { padding: 28px 24px; }
  .learning-path-strip { grid-template-columns: 1fr; }
  .learning-path-intro { grid-column: auto; }
  .learning-path-strip > a { padding: 12px 0; border-left: 0; border-top: 1px solid #e2ded4; }
  .educator-band, .research-band { padding: 28px 24px; }
  .research-links { grid-template-columns: 1fr; }
  .research-links a { border: 1px solid rgba(255,255,255,.5); border-bottom: 0; }
  .research-links a:last-child { border-bottom: 1px solid rgba(255,255,255,.5); }
  .compact-footer-row { align-items: flex-start; flex-direction: column; }
  .compact-footer nav { flex-wrap: wrap; }
}

/* --------------------------------------------------------------------------
   Curriculum restoration — educator map + Research Lab curriculum first
   -------------------------------------------------------------------------- */
.section--soft { background: #f6f7f5; }
.editorial-section-intro {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 56px;
  align-items: end;
  margin-bottom: 34px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--editorial-line, var(--line));
}
.editorial-section-intro .micro-label { margin-bottom: 10px; }
.editorial-section-intro h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.25rem, 4vw, 3.4rem);
  line-height: 1;
  letter-spacing: -.04em;
  font-weight: 600;
}
.editorial-section-intro > p {
  margin: 0 0 4px;
  color: #66717a;
  font-family: var(--serif);
  font-size: .96rem;
  line-height: 1.5;
}

.educator-map-section { padding-top: 66px; }
.educator-curriculum-map {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 34px;
  align-items: start;
}
.educator-core-map { min-width: 0; }
.educator-map-head {
  display: grid;
  grid-template-columns: 180px 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}
.educator-lane-label {
  padding: 10px 12px;
  color: #fff;
  font-size: .68rem;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: .08em;
  text-align: center;
  text-transform: uppercase;
}
.educator-lane-label--student { background: #173a68; }
.educator-lane-label--resident { background: #0076a8; }
.educator-map-flow { position: relative; }
.educator-map-step {
  position: relative;
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 12px;
  margin-bottom: 12px;
}
.educator-map-step:last-child { margin-bottom: 0; }
.educator-map-step::before {
  content: '';
  position: absolute;
  left: 16px;
  top: 31px;
  bottom: -24px;
  width: 2px;
  background: #cfd7db;
}
.educator-map-step:last-child::before { display: none; }
.educator-step-dot {
  position: absolute;
  left: 0;
  top: 4px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #173a68;
  color: #fff;
  font-size: .72rem;
  font-weight: 800;
  z-index: 1;
}
.educator-map-step:nth-child(2) .educator-step-dot { background: #006eb6; }
.educator-map-step:nth-child(3) .educator-step-dot { background: #08a9e6; }
.educator-map-step:nth-child(4) .educator-step-dot { background: #4977a8; }
.educator-map-step:nth-child(5) .educator-step-dot { background: #5d689d; }
.educator-map-step h3 {
  grid-column: 1;
  align-self: start;
  margin: 4px 12px 0 48px;
  font-family: var(--serif);
  font-size: 1.03rem;
  line-height: 1.18;
  font-weight: 600;
  color: #152233;
}
.educator-lanes {
  grid-column: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.educator-lanes > div {
  min-height: 92px;
  padding: 14px 16px;
  background: #fff;
  border: 1px solid #dde2e3;
}
.educator-lanes ul { margin: 0; padding-left: 17px; }
.educator-lanes li { margin: 0 0 3px; color: #5e6871; font-size: .77rem; line-height: 1.45; }
.educator-lanes li:last-child { margin-bottom: 0; }

.educator-research-rail {
  position: sticky;
  top: 100px;
  border: 1px solid #95cdc7;
  background: #fff;
}
.educator-research-head {
  padding: 21px 22px 19px;
  background: #0e8177;
  color: #fff;
}
.educator-research-head p {
  margin: 0 0 5px;
  color: #bde6df;
  font-size: .66rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.educator-research-head h3 {
  margin: 0 0 4px;
  font-family: var(--serif);
  font-size: 1.55rem;
  line-height: 1;
  font-weight: 600;
}
.educator-research-head span { color: #d8efeb; font-size: .76rem; }
.educator-research-steps { padding: 16px 18px 8px; }
.educator-research-steps a {
  position: relative;
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 10px;
  padding: 0 0 15px;
  color: #16302e;
  text-decoration: none;
}
.educator-research-steps a:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 11px;
  top: 22px;
  bottom: 2px;
  width: 1px;
  background: #b8dcd7;
}
.educator-research-steps b {
  position: relative;
  z-index: 1;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0e8177;
  color: #fff;
  font-size: .65rem;
}
.educator-research-steps strong { display: block; font-size: .77rem; line-height: 1.25; }
.educator-research-steps small { display: block; margin-top: 2px; color: #71807d; font-size: .68rem; line-height: 1.35; }
.educator-rail-link {
  display: block;
  padding: 13px 18px 15px;
  border-top: 1px solid #dbe8e6;
  color: #0e8177;
  text-decoration: none;
  font-size: .72rem;
  font-weight: 800;
}
.educator-leadership-extension {
  display: grid;
  grid-template-columns: 1.25fr 1.4fr auto;
  gap: 30px;
  align-items: center;
  margin-top: 30px;
  padding: 28px 32px;
  background: #173a68;
  color: #fff;
}
.educator-leadership-extension .micro-label { margin-bottom: 7px; }
.educator-leadership-extension h3 {
  margin: 0 0 7px;
  font-family: var(--serif);
  font-size: 1.65rem;
  line-height: 1;
  font-weight: 600;
}
.educator-leadership-extension p:not(.micro-label) { margin: 0; color: #dce6ef; font-size: .76rem; line-height: 1.45; }
.educator-extension-steps { display: flex; flex-wrap: wrap; gap: 7px; }
.educator-extension-steps span {
  padding: 6px 8px;
  border: 1px solid rgba(255,255,255,.34);
  color: #eef5fa;
  font-size: .67rem;
  line-height: 1.2;
}
.educator-leadership-extension > a { color: #fff; text-decoration: none; font-size: .72rem; font-weight: 800; white-space: nowrap; }

.research-page-hero { background: #eff8f6; }
.research-content-grid { grid-template-columns: 260px minmax(0,1fr); }
.research-lab-article > section { padding-bottom: 12px; }
.research-lab-article .micro-label { margin-bottom: 10px; }
.research-progress-note {
  margin: 22px 0 26px;
  padding: 15px 17px;
  border-left: 3px solid #0e8177;
  background: #edf7f5;
  color: #4f625f;
  font-size: .82rem;
  line-height: 1.5;
}
.research-curriculum-list { border-top: 1px solid #d5dfdd; }
.research-curriculum-step {
  display: grid;
  grid-template-columns: 42px minmax(0,1fr) 26px;
  gap: 18px;
  align-items: center;
  padding: 18px 4px;
  border-bottom: 1px solid #d5dfdd;
  color: #152233;
  text-decoration: none;
}
.research-curriculum-step:hover { background: #f7fbfa; }
.research-step-num {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0e8177;
  color: #fff;
  font-size: .74rem;
  font-weight: 800;
}
.research-step-copy small {
  display: block;
  margin-bottom: 3px;
  color: #0e8177;
  font-size: .65rem;
  font-weight: 800;
  letter-spacing: .055em;
  text-transform: uppercase;
}
.research-step-copy strong { display: block; font-family: var(--serif); font-size: 1.12rem; line-height: 1.15; font-weight: 600; }
.research-step-copy em { display: block; margin-top: 4px; color: #66717a; font-size: .77rem; line-height: 1.4; font-style: normal; }
.research-step-arrow { color: #0e8177; font-weight: 800; }
.research-curriculum-step--developing { background: #fafaf8; }
.research-curriculum-step--developing .research-step-num { background: #78938f; }
.research-curriculum-step--developing .research-step-copy small { color: #75837f; }
.research-curriculum-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 24px; }
.research-asset-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 12px; margin-top: 22px; }
.research-asset-card {
  display: block;
  padding: 18px 19px;
  border: 1px solid #cfdbd8;
  background: #fff;
  color: #172033;
  text-decoration: none;
}
.research-asset-card span { display: block; margin-bottom: 7px; color: #0e8177; font-size: .65rem; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; }
.research-asset-card strong { display: block; font-family: var(--serif); font-size: 1.06rem; font-weight: 600; }
.research-asset-card small { display: block; margin-top: 4px; color: #6b7674; font-size: .74rem; line-height: 1.4; }
.research-directions-section { margin-top: 16px; padding-top: 42px; border-top: 1px solid var(--line); }
.research-direction-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 0; margin-top: 22px; border-top: 1px solid #d8dfdd; border-left: 1px solid #d8dfdd; }
.research-direction-grid > div { padding: 20px; border-right: 1px solid #d8dfdd; border-bottom: 1px solid #d8dfdd; }
.research-direction-grid h3 { margin: 0 0 7px; font-family: var(--serif); font-size: 1.05rem; font-weight: 600; }
.research-direction-grid p { margin: 0; font-size: .78rem; line-height: 1.45; }

/* The practice-leadership block is intentionally outside the common clinical core. */
.leadership-extension { margin-top: 58px; }
.leadership-extension::before {
  content: 'Role-specific extension';
  display: block;
  margin: -51px 0 30px -38px;
  color: #6d7478;
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .095em;
  text-transform: uppercase;
}

@media (max-width: 980px) {
  .editorial-section-intro { grid-template-columns: 1fr; gap: 18px; }
  .educator-curriculum-map { grid-template-columns: 1fr; }
  .educator-research-rail { position: static; }
  .educator-leadership-extension { grid-template-columns: 1fr; }
  .research-content-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .educator-map-head { display: none; }
  .educator-map-step { display: block; padding-left: 46px; margin-bottom: 24px; }
  .educator-map-step::before { left: 16px; }
  .educator-map-step h3 { margin: 5px 0 10px; }
  .educator-lanes { display: grid; grid-template-columns: 1fr; gap: 8px; }
  .educator-lanes > div::before { display: block; margin-bottom: 6px; color: #173a68; font-size: .65rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
  .educator-lanes > div:first-child::before { content: 'Medical student'; }
  .educator-lanes > div:last-child::before { content: 'Resident / fellow'; }
  .research-asset-grid, .research-direction-grid { grid-template-columns: 1fr; }
  .research-curriculum-step { grid-template-columns: 38px minmax(0,1fr); }
  .research-step-arrow { display: none; }
  .leadership-extension::before { margin-left: -24px; }
}