/* Forever Health Rx — Learn cluster (hub + articles).
   Layout and reading typography only; colors, buttons, header, footer, FAQ and
   emergency styles come from site.css tokens. Restyling the cluster = this file
   + web/templates/learn/. No web fonts, no images above the fold, no JS. */
.learn main{ padding:18px 0 72px; }
.la-crumbs{ font-size:14px; color:var(--muted); margin:6px 0 22px; display:flex; flex-wrap:wrap; gap:6px; }
.la-crumbs a{ color:var(--blue-500); text-decoration:none; }
.la-crumbs a:hover{ text-decoration:underline; }
.la-crumbs span[aria-hidden]{ opacity:.5; }

.la-head,.lh-head{ max-width:860px; display:flex; flex-direction:column; gap:14px; margin-bottom:28px; }
.learn h1{ font-size:clamp(34px,4.6vw,56px); line-height:1.06; font-weight:300; }
.la-lead{ font-size:clamp(18px,1.4vw,21px); color:var(--muted); line-height:1.5; margin:0; max-width:62ch; }
.la-review{ display:flex; gap:12px; align-items:center; background:var(--white); border:1px solid var(--line); border-radius:var(--r-md); padding:12px 16px; max-width:max-content; }
.la-review svg{ flex:none; width:28px; height:28px; }
.la-review p{ margin:0; font-size:15px; color:var(--text); line-height:1.4; }
.la-review__date{ color:var(--muted); font-size:14px; }
.la-status{ margin:0; font-size:14px; color:#6b4f00; background:#fff3c4; border-radius:10px; padding:8px 12px; max-width:62ch; }

/* article grid: TOC column on wide screens, stacked on phones */
.la-grid{ display:grid; grid-template-columns:minmax(0,1fr); gap:28px; }
@media (min-width:1024px){ .la-grid{ grid-template-columns:230px minmax(0,1fr); gap:56px; } .la-toc{ position:sticky; top:calc(var(--nav-h) + 20px); align-self:start; } }
.la-toc details{ background:var(--white); border:1px solid var(--line); border-radius:var(--r-md); padding:14px 18px; }
.la-toc summary{ cursor:pointer; font-weight:600; font-size:14px; letter-spacing:.06em; text-transform:uppercase; color:var(--navy); }
.la-toc ol{ margin:10px 0 0; padding-left:18px; display:flex; flex-direction:column; gap:6px; font-size:15px; }
.la-toc a{ color:var(--text); text-decoration:none; display:block; padding:3px 0; line-height:1.35; }
.la-toc a:hover{ color:var(--blue-500); }

.la-body{ max-width:760px; display:flex; flex-direction:column; gap:36px; min-width:0; }
.la-prose{ font-size:18px; line-height:1.7; color:var(--text); }
.la-prose > *{ margin:0 0 1.1em; }
.la-prose h2{ font-size:clamp(26px,2.4vw,32px); font-weight:400; margin:1.8em 0 .6em; scroll-margin-top:calc(var(--nav-h) + 16px); }
.la-prose h3{ font-size:21px; font-weight:600; margin:1.4em 0 .4em; scroll-margin-top:calc(var(--nav-h) + 16px); }
.la-prose > p:first-child{ font-size:19.5px; }
.la-prose a{ color:var(--blue-500); text-underline-offset:3px; }
.la-prose ul,.la-prose ol{ padding-left:1.3em; }
.la-prose li{ margin:.35em 0; }
.table-wrap{ overflow-x:auto; -webkit-overflow-scrolling:touch; border:1px solid var(--line); border-radius:var(--r-md); background:var(--white); }
.la-prose table{ width:100%; border-collapse:collapse; font-size:15.5px; line-height:1.45; min-width:560px; }
.la-prose th,.la-prose td{ text-align:left; vertical-align:top; padding:12px 14px; border-bottom:1px solid var(--line); }
.la-prose thead th{ background:var(--steel-tint); color:var(--navy); font-weight:600; }
.la-prose tbody tr:last-child td{ border-bottom:0; }
.la-prose td:first-child{ font-weight:600; color:var(--navy); }

.la-note{ border-radius:var(--r-md); padding:16px 18px; font-size:15px; line-height:1.55; }
.la-note p{ margin:0; }
.la-note--fda{ background:var(--ice); border:1px solid var(--steel-soft); color:var(--text); }

.la-cta{ background:var(--navy); color:var(--white); border-radius:var(--r-xl); padding:clamp(24px,4vw,40px); display:flex; flex-direction:column; gap:14px; align-items:flex-start; }
.la-cta h2{ color:var(--white); font-weight:300; font-size:clamp(26px,2.6vw,34px); }
.la-cta p{ margin:0; color:rgba(255,255,255,.82); max-width:60ch; font-size:16px; }
.la-cta .btn--primary{ background:var(--white); color:var(--navy); }
.la-isi{ margin:0; font-size:15.5px; }
.la-isi a{ color:var(--blue-500); margin-right:14px; }

.la-faq{ display:flex; flex-direction:column; gap:16px; grid-template-columns:none; }
.la-faq h2,.la-related h2,.la-sources h2{ font-size:clamp(22px,2vw,28px); font-weight:400; }

.la-related ul{ list-style:none; margin:14px 0 0; padding:0; display:grid; grid-template-columns:repeat(auto-fill,minmax(230px,1fr)); gap:10px; }
.la-rel a{ display:flex; flex-direction:column; gap:4px; height:100%; box-sizing:border-box; background:var(--white); border:1px solid var(--line); border-radius:var(--r-md); padding:14px 16px; text-decoration:none; color:var(--navy); transition:border-color .2s; }
.la-rel a:hover{ border-color:var(--steel-deep); }
.la-rel span{ font-size:12px; letter-spacing:.1em; text-transform:uppercase; color:var(--blue-500); font-weight:600; }
.la-rel b{ font-weight:500; font-size:16px; line-height:1.35; }
.la-rel--assessment a{ background:var(--steel-tint); }

.la-sources ol{ margin:12px 0 0; padding-left:1.3em; font-size:14.5px; color:var(--muted); display:flex; flex-direction:column; gap:8px; line-height:1.5; overflow-wrap:anywhere; }
.la-sources a{ color:var(--blue-500); }
.la-safety{ display:flex; flex-direction:column; gap:12px; }
.la-disclaimer{ margin:0; font-size:13.5px; color:var(--muted); line-height:1.55; }
.la-disclaimer a{ color:inherit; }

/* hub */
.lh{ display:flex; flex-direction:column; gap:40px; }
.lh .lh-head{ margin-bottom:0; }
.lh-topics h2{ font-size:14px; letter-spacing:.12em; text-transform:uppercase; color:var(--blue-500); font-weight:600; margin-bottom:12px; }
.lh-topics ul{ list-style:none; margin:0; padding:0; display:flex; flex-wrap:wrap; gap:8px; }
.lh-topics a{ display:inline-flex; align-items:center; min-height:40px; padding:0 16px; border-radius:var(--r-pill); background:var(--white); border:1px solid var(--line); color:var(--navy); text-decoration:none; font-size:15px; }
.lh-topics a:hover{ border-color:var(--steel-deep); }
.lh-topics small{ color:var(--muted); margin-left:6px; }
.lh-stage__head{ display:flex; flex-wrap:wrap; align-items:baseline; gap:6px 14px; margin-bottom:16px; }
.lh-stage__n{ font-size:13px; font-weight:600; color:var(--blue-500); letter-spacing:.1em; }
.lh-stage__head h2{ font-size:clamp(26px,2.6vw,34px); font-weight:300; }
.lh-stage__head p{ margin:0; color:var(--muted); flex-basis:100%; }
.lh-cards{ list-style:none; margin:0; padding:0; display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:14px; }
.lh-card a{ display:flex; flex-direction:column; gap:8px; height:100%; box-sizing:border-box; padding:22px; background:var(--white); border:1px solid var(--line); border-radius:var(--r-lg); color:var(--text); text-decoration:none; transition:border-color .2s, box-shadow .2s; }
.lh-card a:hover{ border-color:var(--steel-deep); box-shadow:var(--shadow-sm); }
.lh-card h3{ font-size:21px; font-weight:500; line-height:1.25; }
.lh-card p{ margin:0; color:var(--muted); font-size:15.5px; line-height:1.5; }
.lh-card__type{ font-size:12px; letter-spacing:.1em; text-transform:uppercase; color:var(--blue-500); font-weight:600; }
.lh-card__pending{ color:#6b4f00; }
.lh-card--pillar a{ background:var(--steel-tint); }
.lh-empty{ color:var(--muted); }

@media (max-width:640px){
  .la-prose{ font-size:17px; }
  .la-prose > p:first-child{ font-size:18px; }
  .la-review{ max-width:none; }
}

/* images: hero (article + hub) and hub-card thumbnails.
   width/height attrs + aspect-ratio reserve the box before the file arrives (CLS 0). */
.la-top{ display:grid; grid-template-columns:minmax(0,1fr); gap:22px; margin-bottom:28px; }
.la-top .la-head,.la-top .lh-head{ margin-bottom:0; }
.la-figure{ margin:0; border-radius:var(--r-xl); overflow:hidden; background:var(--steel-tint); aspect-ratio:3/2; }
.la-figure img{ width:100%; height:100%; object-fit:cover; object-position:50% 30%; display:block; }
@media (min-width:900px){
  .la-top--img{ grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr); gap:48px; align-items:center; }
  .la-top--img .la-figure{ aspect-ratio:4/5; max-height:520px; }
}
.lh-card__img{ margin:-22px -22px 6px; aspect-ratio:16/10; overflow:hidden; background:var(--steel-tint); border-radius:var(--r-lg) var(--r-lg) 0 0; }
.lh-card__img img{ width:100%; height:100%; object-fit:cover; object-position:50% 30%; display:block; }

/* a11y (Lighthouse): links inside running text must not rely on color alone */
.la-prose a,.la-sources a,.la-isi a,.la-disclaimer a{ text-decoration:underline; text-decoration-thickness:1px; text-underline-offset:3px; }