:root{
  --paper:#f5f2ec;
  --paper-soft:#fbfaf7;
  --ink:#14171b;
  --muted:#5d6268;
  --blue:#123f73;
  --dark:#071018;
  --line:#e2e1dc;
  --shell:1380px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  background:var(--paper);
  font-family:"Inter",Arial,sans-serif;
  line-height:1.5;
}
a{color:inherit}
.shell{
  width:min(calc(100% - 88px),var(--shell));
  margin-inline:auto;
}
.skip-link{position:absolute;left:-9999px;top:10px}
.skip-link:focus{left:10px;z-index:999;background:#fff;padding:10px 14px}

.site-header{
  background:var(--paper);
  border-bottom:1px solid rgba(0,0,0,.05);
}
.header-inner{
  min-height:88px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
}
.brand{
  text-decoration:none;
  display:flex;
  flex-direction:column;
  line-height:1;
}
.brand strong{
  font-size:21px;
  letter-spacing:.2em;
}
.brand span{
  margin-top:8px;
  font-size:11px;
  font-weight:700;
  letter-spacing:.07em;
}
.brand em{color:var(--blue);font-style:normal}

.main-nav{
  display:flex;
  align-items:center;
  gap:32px;
  font-size:12px;
  font-weight:700;
  text-transform:uppercase;
}
.main-nav a{
  text-decoration:none;
  padding-block:12px;
  border-bottom:2px solid transparent;
}
.main-nav a:hover,
.main-nav a.active{
  color:var(--blue);
  border-color:var(--blue);
}
.menu-toggle{display:none}

.hero{background:var(--paper)}
.hero-grid{
  min-height:400px;
  display:grid;
  grid-template-columns:57% 43%;
  align-items:stretch;
}
.hero-copy{
  align-self:center;
  padding:28px 28px 28px 0;
  max-width:760px;
}
.hero h1{
  margin:0;
  font-family:"Inter",Arial,sans-serif;
  font-size:clamp(42px,4vw,58px);
  line-height:.95;
  letter-spacing:-.04em;
  font-weight:700;
  max-width:16ch;
}
.accent-rule{
  width:50px;
  height:3px;
  background:var(--blue);
  margin:25px 0 21px;
}
.thesis{
  font-family:"Source Serif 4",Georgia,serif;
  font-size:27px;
  line-height:1.14;
  margin:0 0 23px;
  font-weight:500;
}
.hero-copy>p:not(.thesis){
  max-width:680px;
  font-size:15px;
  margin:0 0 13px;
}
.button-row{
  display:flex;
  gap:14px;
  margin-top:25px;
  flex-wrap:wrap;
}
.button{
  min-height:48px;
  display:inline-flex;
  align-items:center;
  gap:28px;
  padding:0 22px;
  text-decoration:none;
  text-transform:uppercase;
  font-size:12px;
  font-weight:800;
  letter-spacing:.02em;
  border:1px solid var(--blue);
}
.button span{font-size:21px;font-weight:400}
.button-primary{color:#fff;background:var(--blue)}
.button-secondary{color:var(--blue);background:transparent}

.hero-image,
.about-image{
  position:relative;
  overflow:hidden;
}

/* Homepage hero: transparent so the PNG blends into the page */
.hero-image{
  min-height:480px;
  display:flex;
  align-items:flex-end;
  justify-content:center;
  overflow:hidden;
  background:transparent;
}

/* Bottom homepage image area */
.about-image{
  background:transparent;
}

.hero-image img{
  height:500px;
  width:auto;
  max-width:none;
  display:block;
}

.image-label{
  position:absolute;
  inset:auto 28px 28px;
  padding:15px 17px;
  background:rgba(245,242,236,.92);
  border:1px solid rgba(0,0,0,.1);
  display:flex;
  flex-direction:column;
  gap:3px;
  font-size:12px;
}
.image-label-dark{
  color:#fff;
  background:rgba(7,16,24,.82);
  border-color:rgba(255,255,255,.2);
}

.problem{background:var(--dark);color:#fff}
.problem-grid{
  display:grid;
  grid-template-columns:58% 42%;
  min-height:420px;
}
.problem-copy{padding:46px 38px 40px 0}
.eyebrow{
  margin:0 0 17px;
  color:var(--blue);
  font-size:13px;
  font-weight:800;
  letter-spacing:.025em;
}
.problem h2{
  margin:0;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:42px;
  line-height:1.08;
  font-weight:500;
}
.problem-points{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  margin-top:16px;
}
.problem-points p{
  margin:0;
  padding:0 17px;
  border-left:1px solid rgba(255,255,255,.22);
  font-size:12px;
}
.problem-points p:first-child{border-left:0;padding-left:0}
.problem-image{
  min-height:420px;
  background:
    linear-gradient(90deg,rgba(7,16,24,.05),rgba(7,16,24,.02)),
    url("images/decision-door.jpg");
  background-size:cover;
  background-position:center;
}

.trends{
  background:var(--paper-soft);
  padding:42px 0 24px;
  border-bottom:1px solid var(--line);
}
.trends-grid{
  display:grid;
  grid-template-columns:27% 73%;
  gap:52px;
}
.trend-stat{
  border-right:1px solid var(--line);
  padding-right:40px;
}
.rank{
  color:var(--blue);
  font-family:"Source Serif 4",Georgia,serif;
  font-size:52px;
  line-height:1;
  font-weight:500;
}
.trend-stat h3{
  font-family:"Source Serif 4",Georgia,serif;
  font-size:26px;
  margin:4px 0 8px;
  font-weight:500;
}
.trend-stat p{margin:0}
.capabilities h2{
  margin:0 0 26px;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:27px;
  font-weight:500;
}
.capability-grid{
  display:grid;
  grid-template-columns:repeat(5,1fr);
}
.capability-grid article{
  min-height:142px;
  border-left:1px solid var(--line);
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:flex-start;
  text-align:center;
  padding:6px 18px 0;
}
.capability-grid article:first-child{border-left:0}
.cap-icon{
  width:62px;
  height:62px;
  margin-bottom:16px;
  fill:none;
  stroke:var(--blue);
  stroke-width:1.8;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.capability-grid p{
  margin:0;
  font-size:14px;
  line-height:1.3;
  font-weight:500;
}
.source{
  margin-top:18px;
  font-size:11px;
  color:var(--muted);
}

.trends-judgment{
  margin-top:30px;
  padding:28px 34px 30px;
  border-left:4px solid var(--blue);
  background:rgba(18,63,115,.055);
  display:grid;
  grid-template-columns:180px 1fr 330px;
  gap:34px;
  align-items:center;
}

.trends-judgment-label{
  margin:0;
  color:var(--blue);
  font-size:12px;
  font-weight:800;
  letter-spacing:.08em;
}

.trends-judgment-copy{
  padding-right:30px;
  border-right:1px solid var(--line);
}

.trends-judgment-copy p{
  margin:0 0 10px;
  max-width:720px;
  font-size:14px;
  line-height:1.55;
}

.trends-judgment-copy p:last-child{
  margin-bottom:0;
}

.judgment-conclusion{
  margin:0;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:30px;
  line-height:1.12;
  font-weight:500;
  color:var(--ink);
}

.services{
  background:var(--paper-soft);
  padding:18px 0 12px;
}
.service-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
}
.service-card{
  min-height:300px;
  border:1px solid var(--line);
  padding:25px 31px;
  display:flex;
  flex-direction:column;
  background:rgba(255,255,255,.3);
}
.number{
  color:var(--blue);
  font-family:"Source Serif 4",Georgia,serif;
  font-size:46px;
  line-height:1;
  font-weight:500;
}
.service-card h2{
  font-size:19px;
  margin:12px 0 8px;
  letter-spacing:-.015em;
}
.service-card p{
  margin:0 0 10px;
  font-size:14px;
  line-height:1.45;
  max-width:34ch;
}
.service-tags{color:var(--blue);margin-top:10px!important}
.service-tags span{margin:0 8px}
.service-card a{
  margin-top:auto;
  width:min(220px,100%);
  color:var(--ink);
  text-decoration:none;
  font-size:12px;
  font-weight:800;
  border-bottom:2px solid var(--blue);
  padding-bottom:5px;
  display:flex;
  justify-content:space-between;
}
.service-card a span{
  color:var(--blue);
  font-size:20px;
  line-height:.7;
}

.about{
  background:var(--paper);
  display:grid;
  grid-template-columns:39% 61%;
  min-height:300px;
}
.about-image{
  background-image:
    linear-gradient(to top,rgba(7,16,24,.06),transparent 60%),
    url("images/about.jpg");
  background-size:cover;
  background-position:center;
}
.about-copy{padding:38px 60px 28px;align-self:center}
.about-copy h2{margin:0 0 18px;font-size:25px;line-height:1.15}
.about-copy p{font-size:14px;max-width:820px}
.metrics{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  margin-top:22px;
}
.metrics>div{border-left:1px solid var(--line);text-align:center}
.metrics>div:first-child{border-left:0}
.metrics strong{
  display:block;
  color:var(--blue);
  font-family:"Source Serif 4",Georgia,serif;
  font-size:36px;
  line-height:1;
  font-weight:500;
}
.metrics span{
  display:block;
  font-size:10px;
  font-weight:800;
  margin-top:8px;
}

.final-cta{
  color:#fff;
  background:var(--dark);
  padding:30px 0 36px;
}
.cta-grid{
  display:grid;
  grid-template-columns:1.4fr auto .75fr;
  align-items:center;
  gap:46px;
}
.final-cta h2{
  margin:0;
  font-family:"Source Serif 4",Georgia,serif;
  font-weight:500;
  font-size:30px;
  line-height:1.08;
}
.final-cta .accent-rule{margin:17px 0 0}
.cta-brand{
  padding-left:42px;
  border-left:1px solid rgba(255,255,255,.25);
  display:flex;
  flex-direction:column;
}
.cta-brand strong{font-size:22px;letter-spacing:.2em}
.cta-brand span{margin-top:8px;font-size:13px}

@media (max-width:1100px){
  .shell{width:min(calc(100% - 44px),var(--shell))}

  .main-nav{
    position:absolute;
    left:22px;
    right:22px;
    top:80px;
    z-index:20;
    background:var(--paper);
    border:1px solid var(--line);
    padding:16px;
    display:none;
    flex-direction:column;
    align-items:flex-start;
    gap:5px;
  }

  .main-nav.open{display:flex}

  .menu-toggle{
    display:block;
    background:transparent;
    border:1px solid var(--line);
    padding:9px 13px;
    text-transform:uppercase;
    font-weight:800;
  }

  .hero-grid{
    grid-template-columns:1fr;
    min-height:auto;
  }

  .hero-copy{
    padding:54px 0 46px;
    max-width:760px;
  }

  .hero h1{
    font-size:clamp(38px,5.8vw,50px);
    line-height:.98;
    max-width:16ch;
  }

  .hero-image{min-height:500px}

  .problem-grid{grid-template-columns:1fr}

  .problem-image{min-height:360px}

  .trends-grid{grid-template-columns:1fr}

  .trend-stat{
    border-right:0;
    border-bottom:1px solid var(--line);
    padding:0 0 26px;
  }

  .service-grid{grid-template-columns:1fr}

  .about{grid-template-columns:1fr}

  .about-image{min-height:460px}

  .cta-grid{
    grid-template-columns:1fr;
    justify-items:start;
  }

  .cta-brand{
    padding:24px 0 0;
    border-left:0;
    border-top:1px solid rgba(255,255,255,.25);
  }

  /* WEF judgment conclusion */
  .trends-judgment{
    grid-template-columns:1fr;
    gap:16px;
  }

  .trends-judgment-copy{
    padding-right:0;
    padding-bottom:20px;
    border-right:0;
    border-bottom:1px solid var(--line);
  }

  .judgment-conclusion{
    font-size:28px;
  }
}
@media (max-width:650px){
  .shell{width:min(calc(100% - 32px),var(--shell))}
  .header-inner{min-height:76px}
  .brand strong{font-size:17px}
  .brand span{font-size:9px}
  .hero-copy{padding:46px 0 40px}
  .hero h1{
    font-size:34px;
    line-height:1.02;
    letter-spacing:-.03em;
    max-width:15ch;
  }
  .thesis{font-size:23px}
  .hero-copy>p:not(.thesis){font-size:15px}
  .button-row{flex-direction:column;align-items:stretch}
  .button{justify-content:space-between}
  .hero-image{min-height:410px}
  .problem-copy{padding:42px 0 34px}
  .problem h2{font-size:34px}
  .problem-points{grid-template-columns:1fr 1fr;row-gap:24px}
  .problem-points p:nth-child(3){border-left:0;padding-left:0}
  .problem-image{min-height:300px;background-position:60% center}
  .capability-grid{grid-template-columns:1fr 1fr}
  .capability-grid article{
    min-height:150px;
    border-bottom:1px solid var(--line);
  }
  .capability-grid article:nth-child(odd){border-left:0}
  .service-card{min-height:265px}
  .about-copy{padding:34px 23px}
  .metrics{grid-template-columns:1fr 1fr;gap:21px 0}
  .metrics>div:nth-child(3){border-left:0}
  .final-cta h2{font-size:27px}
  .cta-brand strong{font-size:19px}
}

.lab-hero{background:var(--paper)}
.lab-hero-grid{min-height:610px;display:grid;grid-template-columns:64% 36%;align-items:stretch}
.lab-hero-copy{align-self:center;max-width:780px;padding:78px 70px 78px 0}
.lab-hero h1{margin:0;font-size:clamp(44px,4.6vw,66px);line-height:.94;letter-spacing:-.045em;font-weight:700}
.lab-lead{margin:0 0 24px;max-width:700px;font-family:"Source Serif 4",Georgia,serif;font-size:28px;line-height:1.18;font-weight:500}
.lab-hero-copy>p:not(.eyebrow):not(.lab-lead){max-width:660px;font-size:16px}
.lab-hero-panel{background:var(--dark);color:#fff;display:flex;flex-direction:column;justify-content:center;padding:60px}
.panel-number{color:var(--blue);font-family:"Source Serif 4",Georgia,serif;font-size:112px;line-height:.82}
.panel-label{margin-top:12px;font-size:15px;font-weight:700;letter-spacing:.18em}
.panel-line{width:48px;height:3px;margin:30px 0;background:var(--blue)}
.lab-hero-panel p{margin:0;font-family:"Source Serif 4",Georgia,serif;font-size:24px;line-height:1.35}
.lab-problem{background:var(--dark);color:#fff;padding:72px 0}
.lab-problem-grid{display:grid;grid-template-columns:46% 54%;gap:80px}
.lab-problem h2,.lab-outcomes h2,.lab-format h2,.lab-cta h2{margin:0;font-family:"Source Serif 4",Georgia,serif;font-size:clamp(34px,3.2vw,48px);line-height:1.12;font-weight:500}
.lab-problem-copy{display:grid;grid-template-columns:1fr 1fr;gap:24px 32px}
.lab-problem-copy p{margin:0;padding-left:18px;border-left:1px solid rgba(255,255,255,.25);font-size:15px}
.lab-experience{background:var(--paper-soft);padding:76px 0 86px}
.section-title{margin:0 0 42px;font-family:"Source Serif 4",Georgia,serif;font-size:40px;font-weight:500}
.experience-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.experience-grid article{min-height:285px;padding:28px;border:1px solid var(--line);background:rgba(255,255,255,.34)}
.experience-grid span{display:block;color:var(--blue);font-family:"Source Serif 4",Georgia,serif;font-size:44px;line-height:1}
.experience-grid h3{margin:25px 0 12px;font-size:18px}
.experience-grid p{margin:0;font-size:14px;line-height:1.55}
.lab-outcomes{background:var(--paper);padding:78px 0}
.outcomes-grid{display:grid;grid-template-columns:42% 58%;gap:70px}
.outcomes-list{border-top:1px solid var(--line)}
.outcomes-list>div{display:grid;grid-template-columns:34% 66%;gap:30px;padding:22px 0;border-bottom:1px solid var(--line)}
.outcomes-list strong{font-size:14px}.outcomes-list span{color:var(--muted);font-size:14px}
.lab-audiences{background:var(--paper-soft);padding:60px 0 72px}
.audience-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.audience-grid article{padding:30px;border-top:3px solid var(--blue);background:#fff;min-height:190px}
.audience-grid h3{margin:0 0 14px;font-size:17px}.audience-grid p{margin:0;color:var(--muted);font-size:14px;line-height:1.55}
.lab-format{background:var(--paper);padding:72px 0}
.format-grid{display:grid;grid-template-columns:40% 60%;gap:70px}
.format-details{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.format-details>div{padding:22px 0;border-top:1px solid var(--line)}
.format-details strong,.format-details span{display:block}
.format-details strong{margin-bottom:7px;color:var(--blue);font-size:16px}.format-details span{color:var(--muted);font-size:14px}
.lab-cta{background:var(--dark);color:#fff;padding:66px 0}
.lab-cta-inner{display:grid;grid-template-columns:1fr auto;gap:50px;align-items:center}
.lab-cta h2{max-width:850px}
.simple-footer{background:var(--dark);color:rgba(255,255,255,.55);border-top:1px solid rgba(255,255,255,.12);padding:22px 0;text-align:center;font-size:12px}
.simple-footer span{margin:0 8px}
@media(max-width:1000px){
.lab-hero-grid,.lab-problem-grid,.outcomes-grid,.format-grid{grid-template-columns:1fr}
.lab-hero-copy{padding:58px 0}.lab-hero-panel{min-height:360px}
.experience-grid{grid-template-columns:1fr 1fr}
.lab-problem-grid,.outcomes-grid,.format-grid{gap:42px}
.lab-cta-inner{grid-template-columns:1fr;justify-items:start}}
@media(max-width:650px){
.lab-hero h1{font-size:38px}.lab-lead{font-size:24px}.lab-hero-panel{padding:42px 28px}.panel-number{font-size:88px}
.lab-problem-copy,.experience-grid,.audience-grid,.format-details{grid-template-columns:1fr}
.outcomes-list>div{grid-template-columns:1fr;gap:8px}}


/* CONTACT PAGE */
.contact-hero{padding-bottom:38px}
.contact-section{padding-top:56px;padding-bottom:82px}
.contact-grid{display:grid;grid-template-columns:38% 62%;gap:72px;align-items:start}
.contact-intro h2{margin:0 0 20px;font-family:"Source Serif 4",Georgia,serif;font-size:clamp(34px,3vw,46px);line-height:1.12;font-weight:500}
.contact-intro p{max-width:430px}
.contact-form{display:grid;gap:22px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-field{display:grid;gap:8px}
.form-field label{font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase}
.form-field input,.form-field select,.form-field textarea{width:100%;border:1px solid var(--line);background:#fff;color:var(--ink);font:inherit;padding:14px 15px;border-radius:0}
.form-field textarea{resize:vertical;min-height:170px}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{outline:2px solid rgba(18,63,115,.18);border-color:var(--blue)}
.form-submit{width:max-content;margin-top:4px;cursor:pointer}
@media(max-width:900px){.contact-grid{grid-template-columns:1fr;gap:42px}}
@media(max-width:650px){.form-row{grid-template-columns:1fr}.form-submit{width:100%;justify-content:space-between}}

/* =====================================================
   REQUEST A JUDGMENT LAB PAGE
===================================================== */

.request-lab-hero{
  padding-bottom:38px;
}

.request-lab-section{
  padding-top:56px;
  padding-bottom:82px;
}

.request-lab-grid{
  display:grid;
  grid-template-columns:36% 64%;
  gap:72px;
  align-items:start;
}

.request-lab-intro h2{
  margin:0 0 20px;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(34px,3vw,46px);
  line-height:1.12;
  font-weight:500;
}

.request-lab-intro p{
  max-width:430px;
}

.request-lab-form{
  display:grid;
  gap:22px;
}

.form-choice-group{
  border:0;
  padding:0;
  margin:0;
}

.form-choice-group legend{
  margin-bottom:10px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.04em;
  text-transform:uppercase;
}

.form-choice-group label{
  display:flex;
  align-items:center;
  gap:10px;
  margin:7px 0;
  font-size:14px;
  text-transform:none;
  letter-spacing:0;
  font-weight:500;
}

.form-choice-group input{
  width:auto;
  margin:0;
}

@media (max-width:900px){
  .request-lab-grid{
    grid-template-columns:1fr;
    gap:42px;
  }
}

/* =====================================================
   FORMSPREE AJAX SUCCESS / ERROR STATES
===================================================== */

.form-status{
  min-height:24px;
  margin:0;
  color:var(--muted);
  font-size:14px;
}

.form-success{
  padding:34px;
  border:1px solid var(--line);
  background:#fff;
}

.form-success h2{
  margin:0 0 16px;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(32px,3vw,44px);
  line-height:1.12;
  font-weight:500;
}

.form-success p{
  max-width:620px;
  margin:0 0 24px;
}

.form-submit:disabled{
  opacity:.65;
  cursor:wait;
}

[hidden]{
  display:none !important;
}

/* =====================================================
   JUDGMENT LABS — CONVERSION SECTIONS
===================================================== */

.lab-glance{
  background:var(--paper-soft);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}

.lab-glance-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
}

.lab-glance-grid>div{
  padding:24px 28px;
  border-left:1px solid var(--line);
}

.lab-glance-grid>div:first-child{
  border-left:0;
}

.lab-glance span,
.lab-glance small{
  display:block;
}

.lab-glance span{
  color:var(--blue);
  font-family:"Source Serif 4",Georgia,serif;
  font-size:24px;
  font-weight:500;
}

.lab-glance small{
  margin-top:5px;
  color:var(--muted);
  font-size:12px;
}

.lab-difference{
  background:var(--paper);
  padding:72px 0;
}

.lab-difference-grid,
.lab-ideal-grid,
.lab-investment-grid{
  display:grid;
  grid-template-columns:42% 58%;
  gap:70px;
}

.lab-difference h2,
.lab-ideal h2,
.lab-investment h2{
  margin:0;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(34px,3.2vw,48px);
  line-height:1.12;
  font-weight:500;
}

.lab-difference-grid>div:last-child p{
  margin-top:0;
  margin-bottom:18px;
}

.lab-examples{
  background:var(--paper-soft);
  padding:64px 0 72px;
}

.lab-example-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
}

.lab-example-grid article{
  min-height:180px;
  padding:28px;
  background:#fff;
  border-top:3px solid var(--blue);
}

.lab-example-grid span{
  color:var(--blue);
  font-size:12px;
  font-weight:800;
  letter-spacing:.05em;
}

.lab-example-grid h3{
  margin:24px 0 0;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:25px;
  line-height:1.2;
  font-weight:500;
}

.lab-ideal{
  background:var(--paper);
  padding:72px 0;
}

.lab-ideal ul,
.lab-includes ul{
  list-style:none;
  margin:0;
  padding:0;
}

.lab-ideal li,
.lab-includes li{
  position:relative;
  padding:14px 0 14px 28px;
  border-bottom:1px solid var(--line);
}

.lab-ideal li:first-child,
.lab-includes li:first-child{
  border-top:1px solid var(--line);
}

.lab-ideal li::before,
.lab-includes li::before{
  content:"✓";
  position:absolute;
  left:0;
  color:var(--blue);
  font-weight:700;
}

.lab-investment{
  background:var(--paper-soft);
  padding:72px 0;
}

.lab-investment h2{
  color:var(--blue);
  font-size:clamp(50px,5vw,72px);
}

.lab-investment-grid>div:first-child>p:last-child{
  margin-top:10px;
  font-size:16px;
}

.lab-includes>p:first-child{
  margin-top:0;
}

.lab-note{
  margin-top:18px;
  color:var(--muted);
  font-size:13px;
}

.lab-cta-inner>div>p:last-child{
  max-width:820px;
  color:rgba(255,255,255,.78);
}

@media(max-width:900px){
  .lab-glance-grid,
  .lab-difference-grid,
  .lab-ideal-grid,
  .lab-investment-grid{
    grid-template-columns:1fr;
  }

  .lab-glance-grid>div{
    border-left:0;
    border-top:1px solid var(--line);
  }

  .lab-glance-grid>div:first-child{
    border-top:0;
  }

  .lab-example-grid{
    grid-template-columns:1fr;
  }
  
}

.lab-example-grid article p{
  margin:18px 0;
  color:var(--muted);
  font-size:14px;
  line-height:1.55;
}

.lab-example-grid article strong{
  display:block;
  margin-top:18px;
  color:var(--ink);
  font-size:15px;
}

.about-hero .lab-hero-grid{
    min-height:460px;
}

.about-hero .lab-hero-copy{
    padding:40px 70px 40px 0;
}


@media (max-width: 800px) {
  .about-hero .lab-hero-copy {
    padding: 40px 0 !important;
  }
}

.keynote-hero .lab-hero-grid{
  grid-template-columns:50% 50%;
}

.keynote-hero .lab-hero-panel{
  background:transparent;
  padding:0;
}

.footer-social{
  display:flex;
  align-items:center;
  gap:9px;
  margin-top:8px;
}

.footer-social a{
  color:inherit;
  text-decoration:none;
  font-size:13px;
  font-weight:600;
  letter-spacing:.03em;
  opacity:.72;
  transition:opacity .2s ease;
}

.footer-social a:hover{
  opacity:1;
  text-decoration:underline;
}

.footer-social span{
  opacity:.4;
}

.about-social{
  display:flex;
  justify-content:flex-end;
  gap:22px;
  margin-top:14px;
}

.about-social a{
  color:var(--ink);
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  text-transform:uppercase;
  text-decoration:none;
  border-bottom:1px solid rgba(7,16,24,.25);
  padding-bottom:3px;
}

.about-social a:hover{
  color:var(--blue);
  border-color:var(--blue);
}
.simple-footer .shell {
  text-align: center;
}

.footer-social {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}
/* =====================================================
   INSIGHTS LANDING + ESSAY PAGES
===================================================== */

.insights-hero{
  background:var(--paper);
  padding:82px 0 68px;
  border-bottom:1px solid var(--line);
}

.insights-hero-inner{
  max-width:980px;
}

.insights-hero h1{
  margin:0;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(46px,5.2vw,72px);
  line-height:1.02;
  letter-spacing:-.035em;
  font-weight:500;
}

.insights-intro{
  max-width:760px;
  margin:0;
  color:var(--muted);
  font-size:18px;
  line-height:1.6;
}

.insights-listing{
  background:var(--paper-soft);
  padding:72px 0 88px;
}

.insight-card{
  max-width:900px;
  padding:42px 44px 40px;
  background:#fff;
  border-top:3px solid var(--blue);
  box-shadow:0 14px 40px rgba(7,16,24,.045);
}

.insight-meta{
  margin-bottom:18px;
  color:var(--blue);
  font-size:12px;
  font-weight:800;
  letter-spacing:.07em;
}

.insight-card h2{
  max-width:760px;
  margin:0 0 18px;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(34px,3.4vw,48px);
  line-height:1.08;
  font-weight:500;
}

.insight-card h2 a{
  text-decoration:none;
}

.insight-card h2 a:hover{
  color:var(--blue);
}

.insight-deck{
  max-width:700px;
  margin:0 0 30px;
  color:var(--muted);
  font-size:17px;
  line-height:1.6;
}

.insight-link{
  width:min(220px,100%);
  padding-bottom:6px;
  display:flex;
  justify-content:space-between;
  color:var(--ink);
  text-decoration:none;
  font-size:12px;
  font-weight:800;
  border-bottom:2px solid var(--blue);
}

.insight-link span{
  color:var(--blue);
  font-size:20px;
  line-height:.7;
}

.insights-closing{
  background:var(--dark);
  color:#fff;
  padding:58px 0;
}

.insights-closing-grid{
  display:grid;
  grid-template-columns:1fr auto;
  gap:60px;
  align-items:center;
}

.insights-closing h2{
  margin:0;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(32px,3vw,44px);
  line-height:1.12;
  font-weight:500;
}

/* Essay */
.essay-page{
  background:var(--paper-soft);
}

.essay-shell{
  width:min(calc(100% - 48px),820px);
  margin-inline:auto;
}

.essay-header{
  background:var(--paper);
  padding:66px 0 58px;
  border-bottom:1px solid var(--line);
}

.essay-back{
  display:inline-block;
  margin-bottom:36px;
  color:var(--muted);
  text-decoration:none;
  font-size:12px;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.05em;
}

.essay-back:hover{
  color:var(--blue);
}

.essay-header h1{
  margin:0;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(46px,5.8vw,70px);
  line-height:1;
  letter-spacing:-.035em;
  font-weight:500;
}

.essay-standfirst{
  max-width:720px;
  margin:24px 0 0;
  color:var(--muted);
  font-family:"Source Serif 4",Georgia,serif;
  font-size:24px;
  line-height:1.42;
}

.essay-body{
  padding:64px 0 78px;
}

.essay-body p{
  margin:0 0 24px;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:19px;
  line-height:1.72;
}

.essay-body h2{
  margin:54px 0 20px;
  font-family:"Inter",Arial,sans-serif;
  font-size:15px;
  line-height:1.25;
  font-weight:800;
  letter-spacing:.015em;
}

.essay-body sup{
  font-family:"Inter",Arial,sans-serif;
  font-size:11px;
}

.essay-pull{
  margin:44px 0 !important;
  padding:10px 0 10px 28px;
  border-left:3px solid var(--blue);
  font-size:28px !important;
  line-height:1.35 !important;
  font-weight:500;
}

.essay-ending{
  margin-top:48px !important;
  font-size:23px !important;
  line-height:1.5 !important;
  font-weight:500;
}

.essay-footnote{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid var(--line);
  color:var(--muted);
  font-size:13px;
  line-height:1.6;
}

.essay-cta{
  background:var(--paper);
  border-top:1px solid var(--line);
  padding:58px 0 64px;
}

.essay-cta-inner h2{
  max-width:700px;
  margin:0 0 18px;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(34px,3.3vw,46px);
  line-height:1.12;
  font-weight:500;
}

.essay-cta-inner>p:not(.eyebrow){
  max-width:690px;
  margin:0;
  color:var(--muted);
  font-size:16px;
  line-height:1.6;
}

@media(max-width:900px){
  .insights-closing-grid{
    grid-template-columns:1fr;
    justify-items:start;
  }
}

@media(max-width:650px){
  .insights-hero{
    padding:54px 0 48px;
  }

  .insights-hero h1{
    font-size:40px;
  }

  .insights-intro{
    font-size:16px;
  }

  .insights-listing{
    padding:44px 0 54px;
  }

  .insight-card{
    padding:30px 24px 28px;
  }

  .essay-shell{
    width:min(calc(100% - 32px),820px);
  }

  .essay-header{
    padding:44px 0 40px;
  }

  .essay-back{
    margin-bottom:28px;
  }

  .essay-header h1{
    font-size:40px;
  }

  .essay-standfirst{
    font-size:21px;
  }

  .essay-body{
    padding:46px 0 58px;
  }

  .essay-body p{
    font-size:18px;
    line-height:1.67;
  }

  .essay-body h2{
    margin-top:44px;
  }

  .essay-pull{
    padding-left:20px;
    font-size:24px !important;
  }

  .essay-ending{
    font-size:21px !important;
  }
}


/* =====================================================
   INSIGHTS HERO — COMPACT DESKTOP OVERRIDE
===================================================== */

.insights-hero{
  padding:0;
}

.insights-hero .insights-hero-grid{
  min-height:390px;
  grid-template-columns:62% 38%;
  align-items:stretch;
}

.insights-hero .lab-hero-copy{
  align-self:center;
  max-width:820px;
  padding:42px 70px 42px 0;
}

.insights-hero .lab-hero-copy h1{
  font-size:clamp(40px,4.1vw,58px);
  line-height:.98;
}

.insights-hero .lab-lead{
  max-width:680px;
  margin-bottom:18px;
  font-size:25px;
  line-height:1.22;
}

.insights-hero .lab-hero-copy > p:not(.eyebrow):not(.lab-lead){
  max-width:680px;
  margin-bottom:0;
  font-size:15px;
  line-height:1.55;
}

.insights-hero-side{
  align-self:stretch;
  min-height:0;
  padding:40px 48px;
  background:var(--paper-soft);
  border-left:1px solid var(--line);
  display:flex;
  flex-direction:column;
  justify-content:center;
}

.insights-side-quote{
  max-width:360px;
  margin:0;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(24px,2.2vw,32px);
  line-height:1.24;
  font-weight:500;
}

.insights-hero + .lab-glance{
  margin-top:0;
}

@media(max-width:1000px){
  .insights-hero .insights-hero-grid{
    min-height:auto;
    grid-template-columns:1fr;
  }

  .insights-hero .lab-hero-copy{
    padding:52px 0 44px;
  }

  .insights-hero-side{
    min-height:210px;
    padding:36px 0 42px;
    border-left:0;
    border-top:1px solid var(--line);
  }
}

@media(max-width:650px){
  .insights-hero .lab-hero-copy{
    padding:44px 0 36px;
  }

  .insights-hero .lab-hero-copy h1{
    font-size:36px;
  }

  .insights-hero .lab-lead{
    font-size:22px;
  }

  .insights-hero-side{
    min-height:180px;
    padding:30px 0 34px;
  }
}


/* ESSAY META + AUTHOR BLOCK */
.essay-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  margin-top:18px;
  color:var(--muted);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
}

.essay-meta span{
  opacity:.5;
}

.essay-author{
  margin-top:44px;
  padding-top:30px;
  border-top:1px solid var(--line);
}

.essay-author .eyebrow{
  margin-bottom:12px;
}

.essay-author p:not(.eyebrow){
  max-width:720px;
  margin:0 0 16px;
  font-size:15px;
  line-height:1.65;
}

.essay-author a{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  text-decoration:none;
  font-size:12px;
  font-weight:800;
  text-transform:uppercase;
  border-bottom:2px solid var(--blue);
  padding-bottom:4px;
}

.essay-author a span{
  color:var(--blue);
  font-size:18px;
  line-height:1;
}

@media(max-width:650px){
  .essay-meta{
    font-size:11px;
    gap:6px;
  }

  .essay-author{
    margin-top:36px;
    padding-top:24px;
  }
}


/* =====================================================
   JUDGMENT CHALLENGES — EDITORIAL PAGE
   Append to style.css
===================================================== */

.challenge-page-hero .lab-hero-grid{
  min-height:520px;
}

.challenge-page-hero-grid{
  grid-template-columns:64% 36%;
}

.challenge-page-hero .lab-hero-copy{
  padding:64px 80px 64px 0;
}

.challenge-hero-side{
  background:var(--dark);
  color:#fff;
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding:58px;
}

.challenge-hero-side .eyebrow{
  margin-bottom:22px;
}

.challenge-side-quote{
  margin:0;
  max-width:340px;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(28px,2.7vw,39px);
  line-height:1.14;
  font-weight:500;
}

.challenge-glance a{
  display:block;
  color:inherit;
  text-decoration:none;
}

.challenge-glance a:hover span{
  color:var(--ink);
}

.challenge-editorial-section{
  background:var(--paper);
  padding:78px 0 88px;
  scroll-margin-top:30px;
}

.challenge-editorial-alt{
  background:var(--paper-soft);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}

.challenge-editorial-head{
  display:grid;
  grid-template-columns:1fr 410px;
  gap:72px;
  align-items:end;
  margin-bottom:44px;
}

.challenge-editorial-head h2{
  margin:0;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(36px,3.3vw,48px);
  line-height:1.08;
  font-weight:500;
}

.challenge-editorial-head>p{
  margin:0;
  color:var(--muted);
  font-size:14px;
  line-height:1.6;
}

.challenge-featured{
  display:grid;
  grid-template-columns:24% 76%;
  gap:0;
  padding:42px 0 46px;
  border-top:1px solid var(--ink);
  border-bottom:1px solid var(--line);
}

.challenge-featured-label{
  padding-right:42px;
}

.challenge-index{
  display:block;
  margin-bottom:18px;
  color:var(--blue);
  font-family:"Source Serif 4",Georgia,serif;
  font-size:54px;
  line-height:1;
  font-weight:500;
}

.challenge-availability{
  display:inline-block;
  color:var(--muted);
  font-size:10px;
  line-height:1;
  font-weight:800;
  letter-spacing:.08em;
  text-transform:uppercase;
}

.challenge-available{
  color:var(--blue);
}

.challenge-featured-copy{
  max-width:880px;
}

.challenge-featured-copy h3{
  margin:0 0 16px;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(34px,3vw,46px);
  line-height:1.08;
  font-weight:500;
}

.challenge-featured-copy p{
  margin:0 0 28px;
  max-width:760px;
  color:var(--muted);
  font-size:16px;
  line-height:1.6;
}

.challenge-editorial-link{
  width:min(245px,100%);
  padding-bottom:6px;
  border-bottom:2px solid var(--blue);
  color:var(--ink);
  text-decoration:none;
  font-size:11px;
  font-weight:800;
  display:flex;
  justify-content:space-between;
  gap:20px;
}

.challenge-editorial-link span,
.challenge-row-cta span,
.challenge-dark-link span{
  color:var(--blue);
  font-size:19px;
  line-height:.7;
}

.challenge-rows{
  border-bottom:1px solid var(--line);
}

.challenge-row{
  display:grid;
  grid-template-columns:90px minmax(0,1fr) 235px;
  gap:34px;
  align-items:center;
  min-height:154px;
  padding:28px 0;
  border-top:1px solid var(--line);
}

.challenge-row:first-child{
  border-top:0;
}

.challenge-row-number{
  align-self:start;
  padding-top:3px;
  color:var(--blue);
  font-family:"Source Serif 4",Georgia,serif;
  font-size:34px;
  line-height:1;
  font-weight:500;
}

.challenge-row-title{
  display:flex;
  align-items:baseline;
  gap:16px;
  flex-wrap:wrap;
}

.challenge-row h3{
  margin:0;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:27px;
  line-height:1.14;
  font-weight:500;
}

.challenge-row p{
  margin:9px 0 0;
  max-width:760px;
  color:var(--muted);
  font-size:14px;
  line-height:1.55;
}

.challenge-row-cta{
  justify-self:end;
  width:100%;
  max-width:235px;
  padding-bottom:6px;
  border-bottom:2px solid var(--blue);
  color:var(--ink);
  text-decoration:none;
  font-size:10px;
  font-weight:800;
  display:flex;
  justify-content:space-between;
  gap:14px;
}

.challenge-row-cta:hover,
.challenge-editorial-link:hover{
  color:var(--blue);
}

.challenge-row-live .challenge-row-cta{
  max-width:190px;
}

.challenge-development-note{
  margin:24px 0 0;
  color:var(--muted);
  font-size:12px;
}

.challenge-lab-cta{
  padding:70px 0;
}

.challenge-lab-cta-grid{
  display:grid;
  grid-template-columns:1fr 290px;
  gap:80px;
  align-items:center;
}

.challenge-lab-cta h2{
  margin:0;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(38px,3.5vw,50px);
  line-height:1.08;
  font-weight:500;
}

.challenge-lab-copy{
  max-width:790px;
  margin:20px 0 0;
  color:rgba(255,255,255,.72);
  font-size:15px;
  line-height:1.62;
}

.challenge-lab-actions{
  display:flex;
  flex-direction:column;
  gap:20px;
}

.challenge-lab-actions .button{
  justify-content:space-between;
}

.challenge-dark-link{
  padding-bottom:7px;
  border-bottom:1px solid rgba(255,255,255,.4);
  color:#fff;
  text-decoration:none;
  font-size:10px;
  font-weight:800;
  display:flex;
  justify-content:space-between;
  gap:14px;
}

.challenge-dark-link:hover{
  border-color:#fff;
}

.challenge-organization{
  background:var(--paper-soft);
  padding:72px 0 80px;
}

.challenge-organization-grid{
  display:grid;
  grid-template-columns:56% 44%;
  gap:80px;
  align-items:end;
}

.challenge-organization h2{
  margin:0;
  max-width:760px;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(36px,3.3vw,48px);
  line-height:1.1;
  font-weight:500;
}

.challenge-organization-grid>div:last-child p{
  margin:0 0 24px;
  max-width:500px;
  color:var(--muted);
  font-size:15px;
  line-height:1.6;
}

/* The Insights page already uses .insight-read-link.
   These rules make sure the link also works here if they are not yet global. */
.insight-read-link{
  width:min(300px,100%);
  margin:18px 0 18px auto;
  padding:10px 0 9px;

  border-bottom:2px solid var(--blue);

  color:var(--ink);
  text-decoration:none;
  font-size:12px;
  font-weight:800;
  letter-spacing:.04em;

  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
}

.insights-latest{
  padding-top:35px;
}

.insight-read-link span{
  color:var(--blue);
  font-size:21px;
  line-height:1;
}

.insight-read-link:hover{
  color:var(--blue);
}

@media(max-width:1000px){
  .challenge-page-hero-grid,
  .challenge-editorial-head,
  .challenge-lab-cta-grid,
  .challenge-organization-grid{
    grid-template-columns:1fr;
  }

  .challenge-page-hero .lab-hero-copy{
    padding:58px 0;
  }

  .challenge-hero-side{
    min-height:330px;
  }

  .challenge-editorial-head{
    gap:20px;
  }

  .challenge-editorial-head>p{
    max-width:680px;
  }

  .challenge-row{
    grid-template-columns:72px minmax(0,1fr);
  }

  .challenge-row-cta{
    grid-column:2;
    justify-self:start;
    max-width:235px;
  }

  .challenge-lab-cta-grid,
  .challenge-organization-grid{
    gap:36px;
  }

  .challenge-lab-actions{
    width:min(310px,100%);
  }
}

@media(max-width:650px){
  .challenge-page-hero .lab-hero-copy{
    padding:46px 0;
  }

  .challenge-hero-side{
    min-height:290px;
    padding:38px 28px;
  }

  .challenge-editorial-section{
    padding:58px 0 66px;
  }

  .challenge-featured{
    grid-template-columns:1fr;
    gap:24px;
    padding:34px 0 38px;
  }

  .challenge-featured-label{
    padding-right:0;
  }

  .challenge-index{
    font-size:45px;
    margin-bottom:12px;
  }

  .challenge-featured-copy h3{
    font-size:34px;
  }

  .challenge-row{
    grid-template-columns:48px minmax(0,1fr);
    gap:18px;
    min-height:auto;
    padding:26px 0;
  }

  .challenge-row-number{
    font-size:28px;
  }

  .challenge-row h3{
    font-size:24px;
  }

  .challenge-row-title{
    gap:10px;
  }

  .challenge-row-cta{
    grid-column:2;
    max-width:100%;
  }

  .challenge-lab-cta{
    padding:56px 0;
  }

  .challenge-lab-actions{
    width:100%;
  }

  .challenge-organization{
    padding:56px 0 62px;
  }
}


/* =====================================================
   SINGLE JUDGMENT CHALLENGE
   The Perfect Proposal
   Append to style.css
===================================================== */

.single-challenge-hero .lab-hero-grid{
  min-height:520px;
}

.single-challenge-hero-grid{
  grid-template-columns:64% 36%;
}

.single-challenge-hero .lab-hero-copy{
  padding:64px 80px 64px 0;
}

.single-challenge-question{
  margin-top:24px;
  color:var(--blue);
  font-weight:700;
}

.single-challenge-hero-side{
  background:var(--dark);
  color:#fff;
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding:58px;
}

.single-challenge-side-quote{
  margin:0;
  max-width:360px;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(29px,2.8vw,40px);
  line-height:1.14;
  font-weight:500;
}

.single-challenge-situation,
.single-challenge-analysis,
.single-challenge-test,
.single-challenge-back{
  background:var(--paper);
}

.single-challenge-situation,
.single-challenge-analysis{
  padding:76px 0 82px;
}

.single-challenge-two-col{
  display:grid;
  grid-template-columns:42% 58%;
  gap:80px;
}

.single-challenge-two-col h2,
.single-challenge-section-head h2,
.single-challenge-video-head h2,
.single-challenge-distinction h2{
  margin:0;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(36px,3.4vw,49px);
  line-height:1.08;
  font-weight:500;
}

.single-challenge-body{
  max-width:700px;
}

.single-challenge-body p{
  color:var(--muted);
  font-size:15px;
  line-height:1.68;
}

.single-challenge-body .single-challenge-standfirst{
  margin-top:0;
  color:var(--ink);
  font-family:"Source Serif 4",Georgia,serif;
  font-size:24px;
  line-height:1.35;
}

.single-challenge-decision{
  background:var(--paper-soft);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:72px 0 80px;
}

.single-challenge-section-head{
  max-width:720px;
  margin-bottom:38px;
}

.single-challenge-section-head>p:last-child{
  color:var(--muted);
}

.single-challenge-options{
  border-top:1px solid var(--ink);
}

.single-challenge-option{
  display:grid;
  grid-template-columns:90px 1fr;
  gap:34px;
  padding:27px 0 29px;
  border-bottom:1px solid var(--line);
}

.single-challenge-option>span{
  color:var(--blue);
  font-family:"Source Serif 4",Georgia,serif;
  font-size:37px;
  line-height:1;
}

.single-challenge-option h3{
  margin:0 0 5px;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:27px;
  line-height:1.15;
  font-weight:500;
}

.single-challenge-option p{
  margin:0;
  color:var(--muted);
  font-size:14px;
}

.single-challenge-video-section{
  background:var(--paper);
  padding:78px 0 86px;
}

.single-challenge-video-head{
  display:grid;
  grid-template-columns:1fr 430px;
  gap:70px;
  align-items:end;
  margin-bottom:38px;
}

.single-challenge-video-head>p{
  margin:0;
  color:var(--muted);
  font-size:14px;
  line-height:1.62;
}

.single-challenge-video{
  position:relative;
  width:100%;
  aspect-ratio:16/9;
  background:var(--dark);
  box-shadow:0 18px 50px rgba(15,23,42,.12);
}

.single-challenge-video iframe{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  border:0;
}

.single-challenge-youtube-link{
  margin:18px 0 0;
  text-align:right;
}

.single-challenge-youtube-link a{
  color:var(--ink);
  text-decoration:none;
  font-size:10px;
  font-weight:800;
  letter-spacing:.02em;
}

.single-challenge-youtube-link a span{
  margin-left:8px;
  color:var(--blue);
  font-size:17px;
}

.single-challenge-analysis{
  border-top:1px solid var(--line);
}

.single-challenge-concept{
  background:var(--dark);
  color:#fff;
  padding:76px 0 82px;
}

.single-challenge-concept-grid{
  display:grid;
  grid-template-columns:52% 48%;
  gap:80px;
}

.single-challenge-concept h2{
  margin:0;
  max-width:680px;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(39px,4vw,56px);
  line-height:1.05;
  font-weight:500;
}

.single-challenge-concept-grid>div:last-child{
  align-self:end;
}

.single-challenge-concept-quote{
  margin:0 0 22px;
  color:#fff;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:26px;
  line-height:1.28;
}

.single-challenge-concept-grid>div:last-child>p:last-child{
  margin:0;
  color:rgba(255,255,255,.7);
  font-size:14px;
  line-height:1.65;
}

.single-challenge-distinction{
  background:var(--paper-soft);
  padding:76px 0 82px;
}

.single-challenge-distinction-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  margin-top:42px;
  border-top:1px solid var(--ink);
  border-bottom:1px solid var(--line);
}

.single-challenge-distinction-grid>div{
  padding:34px 38px 38px 0;
}

.single-challenge-distinction-grid>div+div{
  padding-left:38px;
  border-left:1px solid var(--line);
}

.single-challenge-distinction-grid span{
  color:var(--blue);
  font-size:10px;
  font-weight:800;
  letter-spacing:.08em;
}

.single-challenge-distinction-grid p{
  margin:12px 0 0;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:29px;
  line-height:1.22;
}

.single-challenge-distinction-close{
  margin:28px 0 0;
  max-width:780px;
  color:var(--muted);
  font-size:15px;
}

.single-challenge-test{
  padding:76px 0 82px;
}

.single-challenge-test-list{
  border-top:1px solid var(--ink);
}

.single-challenge-test-list>div{
  display:grid;
  grid-template-columns:90px 1fr;
  gap:34px;
  align-items:start;
  padding:29px 0 31px;
  border-bottom:1px solid var(--line);
}

.single-challenge-test-list span{
  color:var(--blue);
  font-family:"Source Serif 4",Georgia,serif;
  font-size:34px;
  line-height:1;
}

.single-challenge-test-list p{
  margin:0;
  max-width:900px;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:26px;
  line-height:1.28;
}

.single-challenge-test-note{
  max-width:800px;
  margin:28px 0 0 124px;
  color:var(--muted);
  font-size:14px;
  line-height:1.65;
}

.single-challenge-answer{
  background:var(--paper-soft);
  border-top:1px solid var(--line);
  padding:72px 0 80px;
}

.single-challenge-answer-grid{
  display:grid;
  grid-template-columns:28% 72%;
  gap:60px;
}

.single-challenge-answer-letter{
  margin-top:24px;
  color:var(--blue);
  font-family:"Source Serif 4",Georgia,serif;
  font-size:92px;
  line-height:.85;
}

.single-challenge-answer h2{
  margin:0 0 22px;
  max-width:780px;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(36px,3.4vw,49px);
  line-height:1.08;
  font-weight:500;
}

.single-challenge-answer-grid>div:last-child p{
  max-width:720px;
  color:var(--muted);
  font-size:15px;
  line-height:1.65;
}

.single-challenge-takeaway{
  background:var(--paper);
  padding:76px 0 84px;
}

.single-challenge-takeaway-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  margin-top:30px;
  border-top:1px solid var(--ink);
  border-bottom:1px solid var(--line);
}

.single-challenge-takeaway-grid>div{
  min-height:180px;
  padding:30px 32px 34px 0;
}

.single-challenge-takeaway-grid>div+div{
  padding-left:32px;
  border-left:1px solid var(--line);
}

.single-challenge-takeaway-grid span{
  color:var(--blue);
  font-family:"Source Serif 4",Georgia,serif;
  font-size:30px;
}

.single-challenge-takeaway-grid h3{
  margin:22px 0 0;
  max-width:280px;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:25px;
  line-height:1.2;
  font-weight:500;
}

.single-challenge-takeaway-line{
  margin:34px 0 0;
  max-width:900px;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:27px;
  line-height:1.35;
}

.single-challenge-lab{
  padding:70px 0;
}

.single-challenge-lab-grid{
  display:grid;
  grid-template-columns:1fr 290px;
  gap:80px;
  align-items:center;
}

.single-challenge-lab h2{
  margin:0;
  font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(38px,3.5vw,50px);
  line-height:1.08;
  font-weight:500;
}

.single-challenge-lab-grid>div:first-child>p:last-child{
  max-width:780px;
  margin:20px 0 0;
  color:rgba(255,255,255,.72);
  font-size:15px;
  line-height:1.62;
}

.single-challenge-lab-actions{
  display:flex;
  flex-direction:column;
  gap:20px;
}

.single-challenge-lab-actions .button{
  justify-content:space-between;
}

.single-challenge-dark-link{
  padding-bottom:7px;
  border-bottom:1px solid rgba(255,255,255,.4);
  color:#fff;
  text-decoration:none;
  font-size:10px;
  font-weight:800;
  display:flex;
  justify-content:space-between;
  gap:14px;
}

.single-challenge-dark-link span{
  color:var(--blue);
  font-size:18px;
  line-height:.7;
}

.single-challenge-back{
  padding:34px 0 38px;
  border-bottom:1px solid var(--line);
}

.single-challenge-back a{
  color:var(--ink);
  text-decoration:none;
  font-size:10px;
  font-weight:800;
}

.single-challenge-back a:hover,
.single-challenge-dark-link:hover,
.single-challenge-youtube-link a:hover{
  color:var(--blue);
}

@media(max-width:1000px){
  .single-challenge-hero-grid,
  .single-challenge-two-col,
  .single-challenge-video-head,
  .single-challenge-concept-grid,
  .single-challenge-answer-grid,
  .single-challenge-lab-grid{
    grid-template-columns:1fr;
  }

  .single-challenge-hero .lab-hero-copy{
    padding:58px 0;
  }

  .single-challenge-hero-side{
    min-height:320px;
  }

  .single-challenge-two-col,
  .single-challenge-video-head,
  .single-challenge-concept-grid,
  .single-challenge-answer-grid,
  .single-challenge-lab-grid{
    gap:34px;
  }

  .single-challenge-test-note{
    margin-left:0;
  }

  .single-challenge-lab-actions{
    width:min(320px,100%);
  }
}

@media(max-width:650px){
  .single-challenge-hero .lab-hero-copy{
    padding:46px 0;
  }

  .single-challenge-hero-side{
    min-height:280px;
    padding:38px 28px;
  }

  .single-challenge-situation,
  .single-challenge-analysis,
  .single-challenge-video-section,
  .single-challenge-concept,
  .single-challenge-distinction,
  .single-challenge-test,
  .single-challenge-answer,
  .single-challenge-takeaway{
    padding:56px 0 62px;
  }

  .single-challenge-option,
  .single-challenge-test-list>div{
    grid-template-columns:48px 1fr;
    gap:18px;
  }

  .single-challenge-distinction-grid,
  .single-challenge-takeaway-grid{
    grid-template-columns:1fr;
  }

  .single-challenge-distinction-grid>div{
    padding:28px 0;
  }

  .single-challenge-distinction-grid>div+div{
    padding-left:0;
    border-left:0;
    border-top:1px solid var(--line);
  }

  .single-challenge-takeaway-grid>div{
    min-height:auto;
    padding:26px 0 30px;
  }

  .single-challenge-takeaway-grid>div+div{
    padding-left:0;
    border-left:0;
    border-top:1px solid var(--line);
  }

  .single-challenge-test-list p{
    font-size:22px;
  }

  .single-challenge-takeaway-line{
    font-size:23px;
  }

  .single-challenge-lab{
    padding:56px 0;
  }

  .single-challenge-lab-actions{
    width:100%;
  }
}

.essay-meta-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
}

.essay-pdf-link{
  color:var(--ink);
  text-decoration:none;
  font-size:11px;
  font-weight:800;
  letter-spacing:.04em;
  white-space:nowrap;
  padding-bottom:5px;
  border-bottom:2px solid var(--blue);
}

.essay-pdf-link span{
  margin-left:8px;
  color:var(--blue);
  font-size:16px;
}

.essay-pdf-link:hover{
  color:var(--blue);
}

@media(max-width:650px){
  .essay-meta-row{
    flex-direction:column;
    align-items:flex-start;
    gap:14px;
  }
}