/* Plumb Learn — educational content using the existing Plumb visual system. */
.learn-hero{padding:68px 0 40px}.learn-shell{width:min(980px,calc(100% - 40px));margin:0 auto}.learn-hero h1,.article-title,.learn-section-title{font-family:'Instrument Serif',Georgia,serif;font-weight:400;letter-spacing:-.035em}.learn-hero h1{margin:0;max-width:820px;font-size:clamp(56px,7vw,92px);line-height:.94}.learn-hero p{max-width:680px;margin:22px 0 0;color:var(--body);font-size:15px;line-height:1.75}.learn-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;padding:26px 0 86px}.learn-card{min-height:238px;border:1px solid rgba(222,216,203,.78);border-radius:30px;padding:26px;background:var(--surface);text-decoration:none;display:flex;flex-direction:column;justify-content:space-between;box-shadow:0 18px 55px rgba(23,21,15,.045);transition:transform .18s ease,box-shadow .18s ease}.learn-card:nth-child(2n){background:var(--sand)}.learn-card:nth-child(3n){background:var(--moss-tint)}.learn-card:hover{transform:translateY(-3px);box-shadow:0 22px 62px rgba(23,21,15,.08)}.learn-card-kicker{color:var(--moss);font-size:9px;font-weight:700;letter-spacing:.13em;text-transform:uppercase}.learn-card h2{margin:20px 0 8px;font-size:21px;line-height:1.2}.learn-card p{margin:0;color:var(--body);font-size:11px;line-height:1.7}.learn-card span{display:inline-flex;margin-top:18px;color:var(--moss);font-size:10px;font-weight:700}.article-hero{padding:62px 0 34px}.article-breadcrumb{display:flex;gap:8px;align-items:center;margin-bottom:20px;color:var(--muted);font-size:10px;font-weight:600}.article-breadcrumb a{color:var(--moss);text-decoration:none}.article-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;color:var(--muted);font-size:10px}.article-title{margin:0;max-width:900px;font-size:clamp(48px,6.5vw,82px);line-height:.95}.article-deck{max-width:760px;margin:20px 0 0;color:var(--body);font-size:15px;line-height:1.76}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:24px;align-items:start;padding:20px 0 86px}.article-card{border:1px solid rgba(222,216,203,.78);border-radius:32px;padding:34px;background:var(--surface);box-shadow:0 18px 55px rgba(23,21,15,.04)}.article-card h2{margin:32px 0 9px;font-family:'Instrument Serif',Georgia,serif;font-size:35px;font-weight:400;letter-spacing:-.025em}.article-card h2:first-child{margin-top:0}.article-card h3{margin:25px 0 7px;font-size:14px}.article-card p,.article-card li{color:var(--body);font-size:13px;line-height:1.82}.article-card ul{padding-left:21px}.article-card strong{color:var(--ink)}.article-note{margin:22px 0;border-radius:24px;padding:20px;background:var(--sand);color:var(--body);font-size:11px;line-height:1.7}.article-note.moss{background:var(--moss-tint)}.article-table-wrap{overflow-x:auto;margin:20px 0}.article-table{width:100%;border-collapse:collapse;font-size:11px}.article-table th,.article-table td{padding:12px 10px;border-bottom:1px solid var(--hairline);text-align:left;vertical-align:top}.article-table th{color:var(--muted);font-size:9px;letter-spacing:.08em;text-transform:uppercase}.article-sidebar{position:sticky;top:98px;display:grid;gap:12px}.sidebar-card{border-radius:26px;padding:22px;background:var(--moss-deep);color:var(--ink-inverse)}.sidebar-card.sand{background:var(--sand);color:var(--ink)}.sidebar-card small{color:#9eb9ad;font-size:8px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.sidebar-card.sand small{color:var(--sand-text)}.sidebar-card h3{margin:9px 0 7px;font-family:'Instrument Serif',Georgia,serif;font-size:28px;font-weight:400;line-height:1}.sidebar-card p{margin:0;color:#c7d4ce;font-size:10px;line-height:1.7}.sidebar-card.sand p{color:var(--body)}.sidebar-card a{display:inline-flex;margin-top:14px;color:inherit;font-size:10px;font-weight:700;text-decoration:none}.article-sources{margin-top:30px;padding-top:22px;border-top:1px solid var(--hairline)}.article-sources h2{margin:0 0 10px;font-family:'Archivo',sans-serif;font-size:11px;font-weight:700;letter-spacing:.09em;text-transform:uppercase}.article-sources a{color:var(--moss);font-size:11px;line-height:1.7}.article-disclaimer{margin-top:28px;border-radius:24px;padding:20px;background:#ece9e1;color:var(--body);font-size:10px;line-height:1.75}.related-strip{padding:58px 0;background:var(--surface)}.related-strip h2{margin:0;font-family:'Instrument Serif',Georgia,serif;font-size:40px;font-weight:400;letter-spacing:-.03em}.related-links{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:20px}.related-link{border-radius:22px;padding:18px;background:var(--ground);border:1px solid var(--border);text-decoration:none;font-size:11px;font-weight:700;line-height:1.45}.related-link span{display:block;margin-top:7px;color:var(--moss);font-size:9px}.learn-category{padding:16px 0 0}.learn-category h2{margin:0 0 4px;font-family:'Instrument Serif',Georgia,serif;font-size:36px;font-weight:400}.learn-category p{margin:0;color:var(--body);font-size:11px;line-height:1.7}
@media(max-width:860px){.article-layout{grid-template-columns:1fr}.article-sidebar{position:static;grid-template-columns:1fr 1fr}.learn-grid{grid-template-columns:1fr 1fr}}
@media(max-width:700px){.learn-shell{width:min(100% - 28px,980px)}.learn-hero,.article-hero{padding-top:48px}.learn-grid{grid-template-columns:1fr;padding-bottom:64px}.article-card{padding:23px;border-radius:25px}.article-sidebar{grid-template-columns:1fr}.related-links{grid-template-columns:1fr}.article-title{font-size:clamp(46px,14vw,68px)}}