/* September member journey — shared shell, content grid, and page grammar. */
:root{
  --september-gutter-x:clamp(1.1rem,4vw,2rem);
  --september-content-max:1180px;
  --september-workspace-max:1440px;
  --september-ink:#141518;
  --september-muted:#636770;
  --september-rule:#d9d8d3;
  --september-artemis:#c4571a;
  --september-paper:#f3f1ee;
}

.september-header{
  display:flex;align-items:center;justify-content:space-between;gap:1.5rem;flex-wrap:wrap;
  padding:1rem var(--september-gutter-x);border-bottom:1px solid var(--september-rule);
  background:var(--september-paper);color:#2e3136
}
.september-brand{display:flex;gap:.65rem;align-items:center;text-decoration:none;font-size:1.1rem;font-weight:600;max-width:100%}
.september-brand img{object-fit:contain}
.september-nav{display:flex;flex-wrap:wrap;gap:1.5rem;font-family:var(--font-sans);font-size:.9rem;min-width:0}
.september-nav a{text-decoration:none;padding:.5rem 0;color:inherit}
.september-nav a[aria-current]{border-bottom:2px solid var(--september-artemis)}
.september-mobile-menu{display:none}
.september-header a:focus-visible,.september-header summary:focus-visible,.september-home a:focus-visible,.september-footer a:focus-visible,.september-editorial a:focus-visible{outline:3px solid var(--september-artemis);outline-offset:5px}

.september-footer{margin:2.5rem 0 0;border-top:1px solid var(--september-rule);font:.8rem/1.5 var(--font-sans);color:var(--september-muted)}
.september-footer__inner{
  max-width:var(--september-content-max);margin:0 auto;padding:1.25rem var(--september-gutter-x);
  display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap
}
.september-footer__mark{margin:0}
.september-footer__nav{display:flex;gap:1.25rem;flex-wrap:wrap}
.september-footer__nav a{color:inherit;text-decoration:none}
.september-footer__nav a:hover{color:var(--september-ink)}

/* Shared editorial content grid — Home, Cabot, History, Membership, MBL, About/Privacy/Help */
.september-home,
.september-cabot,
.september-content,
.september-editorial,
.september-content-shell > .platform-content-page,
main.september-content-shell .platform-content-page,
main.page-layout--my-black-lungs .platform-content-page,
main.page-layout--results-landing .platform-content-page{
  max-width:var(--september-content-max);
  margin-left:auto;margin-right:auto;
  padding-left:var(--september-gutter-x);padding-right:var(--september-gutter-x);
  box-sizing:border-box
}
.september-home{padding-top:2.8rem;padding-bottom:0}
.course-explorer-main .platform-content-page,
.course-page .platform-content-page{
  max-width:var(--september-workspace-max);
  padding-left:var(--september-gutter-x);padding-right:var(--september-gutter-x)
}

.september-eyebrow{
  font:600 .75rem/1.5 var(--font-sans);text-transform:uppercase;letter-spacing:.13em;
  color:var(--september-muted);margin:0 0 1.25rem
}
.september-page-hero{margin:0 0 1.75rem;padding:2rem 0 0}
.september-page-hero__title{
  font-family:var(--font);font-size:clamp(2.4rem,4.6vw,4.2rem);line-height:1.08;letter-spacing:-.03em;
  margin:0 0 1rem;font-weight:500;color:var(--september-ink);max-width:18ch
}
.september-page-hero__lede{font-size:1.15rem;line-height:1.6;max-width:42ch;margin:0 0 .75rem;color:#2e3136}
.september-page-hero__meta{margin:0;color:var(--september-muted);font:.95rem/1.5 var(--font-sans)}
.september-note,.september-crosslink{font-size:.9rem;color:var(--september-muted);max-width:70ch}
.september-editorial__section{padding:1.4rem 0;border-top:1px solid var(--september-rule)}
.september-editorial__section h2{font-size:1.45rem;font-weight:500;margin:0 0 .7rem}
.september-editorial__section p{max-width:65ch;line-height:1.6;margin:0 0 .85rem}
.september-editorial__note{margin:1.5rem 0 0;font:.9rem/1.5 var(--font-sans)}
.september-help-list{display:grid;gap:1rem;margin:0;padding:0}
.september-help-list > div{display:grid;gap:.35rem}
.september-help-list dt{font:600 .8rem/1.4 var(--font-sans);letter-spacing:.04em;text-transform:uppercase;color:var(--september-muted)}
.september-help-list dd{margin:0;max-width:65ch;line-height:1.55}
.september-archive-list{list-style:none;margin:1.5rem 0 0;padding:0;display:grid;gap:0;border-top:1px solid var(--september-rule)}
.september-archive-list li{border-bottom:1px solid var(--september-rule)}
.september-archive-list a{
  display:grid;gap:.35rem;padding:1.15rem 0;text-decoration:none;color:inherit
}
.september-archive-list strong{font-size:1.15rem;font-weight:500;color:var(--september-ink)}
.september-archive-list span{color:var(--september-muted);font:.95rem/1.5 var(--font-sans);max-width:55ch}

.september-hero{display:grid;grid-template-columns:1.05fr 1fr;gap:3.5rem;align-items:center}
.september-hero h1{
  font-size:clamp(2.8rem,4.6vw,4.6rem);line-height:1.04;letter-spacing:-.04em;margin:0 0 1.4rem;
  font-weight:500;max-width:10ch;color:var(--september-ink);font-family:var(--font)
}
.september-lede{font-size:1.2rem;line-height:1.65;max-width:37ch}
.september-season{border-top:1px solid #d0cfc9;margin-top:2.2rem;padding-top:1.7rem}
.september-season h2{font-size:1.45rem;font-weight:500;margin:0 0 .65rem}
.september-season p{color:var(--september-muted);max-width:40ch}
.september-action{
  display:inline-flex;align-items:center;min-height:46px;background:var(--september-artemis);color:white!important;
  padding:.65rem 1.1rem;border-radius:4px;text-decoration:none;font:600 .95rem/1.4 var(--font-sans)
}
.september-secondary{display:inline-block;margin:1rem 0 0 1rem;font:.9rem/1.5 var(--font-sans);color:#2e3136}
.september-geography{margin:0;min-width:0}
.september-geography svg{display:block;width:100%;max-height:590px}
.september-geography figcaption{
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font:.75rem/1.5 var(--font-sans);
  padding:.8rem 0;color:var(--september-muted)
}
.september-geography figcaption strong{color:#2e3136}
.september-belonging{
  display:flex;align-items:center;justify-content:space-between;gap:2rem;
  border-top:1px solid var(--september-rule);margin-top:2.5rem;padding-top:1rem
}
.september-belonging p{max-width:65ch;color:var(--september-muted)}
.september-belonging a{white-space:nowrap;color:#2e3136;font:.9rem/1.5 var(--font-sans)}
.platform-home .platform-home-shell{max-width:none;padding:0}

.september-cabot .platform-section,
.september-membership .platform-section,
.mbl-page .platform-section{
  padding:1.6rem 0;border:0;border-top:1px solid var(--september-rule);border-radius:0;background:none;box-shadow:none
}
.september-cabot .platform-section h2,
.september-membership .platform-section__title{font-size:1.6rem}
.september-cabot [data-cabot-state]{border-left:3px solid var(--september-artemis);padding:0 0 0 1.2rem;max-width:65ch}
.september-cabot [data-cabot-state] h3{font-size:1.2rem;margin:.8rem 0}
.cabot-planning-sequence{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;list-style:none;padding:0;margin:0}
.cabot-planning-sequence li{display:flex;flex-direction:column;gap:.6rem}
.cabot-planning-sequence span{font:600 .7rem/1.5 var(--font-sans);letter-spacing:.06em;color:var(--september-muted)}
.cabot-planning-sequence li:first-child span{color:var(--september-artemis)}
.cabot-planning-sequence strong{font-weight:500;font-size:1.15rem}
.september-cabot a.platform-button,.september-membership .membership-provider-button{font-family:var(--font-sans);min-height:44px}
.september-cabot form{display:flex;gap:1rem;align-items:end;flex-wrap:wrap}
.september-cabot select{min-height:44px}
.september-cabot form label{display:flex;flex-direction:column;gap:.5rem}
.september-cabot [data-cabot-companion] a{display:inline-block;margin-right:1rem;padding:.5rem 0}
.september-cabot [data-cabot-companion][hidden]{display:none}

.mbl-page .september-page-hero__title{max-width:none}
.mbl-page .mbl-opening{margin-bottom:1rem}
.mbl-page .mbl-section--welcome{padding-top:1rem;margin-top:0}
.mbl-page .mbl-section--welcome .platform-section__title{font-size:1.65rem}
.mbl-page [data-cabot-member-home]{border-left:3px solid var(--september-artemis);padding-left:1rem;margin-bottom:1.3rem}
.mbl-page [data-cabot-member-home]>h3{font-size:1.3rem;margin:.2rem 0 .6rem}
.mbl-page [data-cabot-state] h3{font:600 1rem/1.5 var(--font-sans);margin:.4rem 0}
.mbl-page [data-cabot-state] p{max-width:65ch}
.mbl-page [data-cabot-state] .platform-button{min-height:44px}
.mbl-page [data-mbl="app-eligibility"] a{display:inline-block;margin-right:1rem;padding:.5rem 0}

/* Hide legacy dual identity footer on September shells */
.september-header ~ main .fp-site-identity,
body:has(.september-header) .fp-site-identity{display:none}

@media(max-width:760px){
  .september-header{padding:.7rem 1rem;position:relative}
  .september-header .september-nav{display:none}
  .september-mobile-menu{display:block;font-family:var(--font-sans)}
  .september-mobile-menu summary{cursor:pointer;min-height:44px;display:flex;align-items:center;padding:.4rem .7rem}
  .september-mobile-menu nav{
    position:absolute;z-index:100;left:0;right:0;top:100%;display:flex;flex-direction:column;
    background:var(--september-paper);border-bottom:1px solid #bbb;padding:1rem
  }
  .september-mobile-menu nav a{padding:.8rem;text-decoration:none;color:#2e3136}
  .september-home{padding-top:1.4rem}
  .september-hero{grid-template-columns:1fr;gap:1.7rem}
  .september-eyebrow{font-size:.67rem;margin-bottom:1rem}
  .september-hero h1,.september-page-hero__title{font-size:2.6rem;max-width:12ch}
  .september-lede,.september-page-hero__lede{font-size:1.02rem;line-height:1.55}
  .september-season{margin-top:1.3rem;padding-top:1.2rem}
  .september-season h2{font-size:1.3rem}
  .september-secondary{margin-left:.6rem;font-size:.8rem}
  .september-geography svg{max-height:370px}
  .september-belonging{display:block;margin-top:1.5rem}
  .september-footer__inner{padding:1rem var(--september-gutter-x);font-size:.75rem}
  .cabot-planning-sequence{grid-template-columns:1fr 1fr;gap:1.4rem 1rem}
  .cabot-planning-sequence strong{font-size:1rem}
  .september-cabot .platform-section h2{font-size:1.4rem}
  .mbl-page .september-page-hero__title{font-size:2.2rem}
  .september-page-hero{padding-top:1.4rem}
}
.september-hero__copy{min-width:0}
.september-home h1{overflow-wrap:break-word}