.learn-header{padding:7rem 1.5rem 4rem;position:relative;overflow:hidden}.learn-header-inner{z-index:2;max-width:960px;margin:0 auto;position:relative}.learn-title{margin:1.25rem 0}.learn-sub{color:var(--lab-mute);max-width:620px;margin:0 0 2rem;font-size:clamp(.95rem,1.4vw,1.05rem);line-height:1.6}.learn-readout{border-top:1px solid var(--lab-grid-dark);padding-top:1.25rem}.learn-body{background-image:linear-gradient(var(--lab-grid) 1px, transparent 1px), linear-gradient(90deg, var(--lab-grid) 1px, transparent 1px);background-size:64px 64px;padding:3rem 0 6rem}.learn-category+.learn-category{margin-top:3rem}.learn-category-head{border-bottom:1px solid var(--lab-grid-strong);align-items:baseline;gap:.75rem;margin-bottom:.6rem;padding-bottom:.7rem;display:flex;position:relative}.learn-category-head:after{content:"";background:var(--lab-signal);width:56px;height:1px;position:absolute;bottom:-1px;left:0}.learn-category-id{color:var(--lab-signal);letter-spacing:.14em;font-size:.7rem}.learn-category-title{font-family:var(--lab-font-display);color:var(--lab-ink);letter-spacing:-.005em;margin:0;font-size:1.4rem;font-weight:400}.learn-category-count{color:var(--lab-mute);letter-spacing:.14em;margin-left:auto;font-size:.66rem}.learn-category-desc{color:var(--lab-mute);margin:0 0 1.25rem;font-size:.88rem;line-height:1.55}.learn-list{border-top:1px solid var(--lab-grid-strong);margin:0;padding:0;list-style:none}.learn-list>li{border-bottom:1px solid var(--lab-grid-strong)}.learn-row{color:inherit;grid-template-columns:56px 1fr 32px;gap:1.25rem;padding:1.25rem .5rem 1.25rem .75rem;text-decoration:none;transition:background .15s,padding-left .15s;display:grid;position:relative}.learn-row:before{content:"";background:var(--lab-signal);opacity:0;width:3px;transition:opacity .15s;position:absolute;top:0;bottom:0;left:0}.learn-row:hover{background:color-mix(in srgb, var(--lab-signal) 4%, transparent);padding-left:1.2rem}.learn-row:hover:before{opacity:1}.learn-row:hover .learn-row-arrow{color:var(--lab-signal);transform:translate(4px)}.learn-row:hover .learn-row-title{color:var(--lab-signal)}.learn-row-meta{flex-direction:column;align-items:flex-start;gap:.35rem;display:flex}.learn-row-id{font-family:var(--lab-font-mono);color:var(--lab-mute);letter-spacing:.06em;font-size:.78rem}.learn-row-kind{font-family:var(--lab-font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--lab-mute);border:1px solid;border-radius:2px;padding:.18rem .4rem;font-size:.6rem}.learn-row-kind-free{color:var(--lab-signal)}.learn-row-kind-paid{color:var(--lab-ink)}.learn-row-kind-invite,.learn-row-kind-micro{color:var(--lab-mute)}.learn-row-body{min-width:0}.learn-row-title{font-family:var(--lab-font-display);color:var(--lab-ink);letter-spacing:-.005em;margin:0 0 .35rem;font-size:1.1rem;transition:color .15s}.learn-row-summary{color:var(--lab-mute);margin:0;font-size:.88rem;line-height:1.55}.learn-row-badge{font-family:var(--lab-font-mono);letter-spacing:.12em;text-transform:uppercase;border:1px solid var(--lab-signal);color:var(--lab-signal);border-radius:2px;margin-top:.5rem;padding:.18rem .4rem;font-size:.6rem;display:inline-block}.learn-row-arrow{font-family:var(--lab-font-mono);color:var(--lab-mute);place-self:center end;font-size:1.1rem;transition:color .15s,transform .15s}.learn-empty{color:var(--lab-mute);letter-spacing:.08em;margin:1rem 0 0;padding:1.25rem .75rem;font-size:.78rem}@media (max-width:640px){.learn-row{grid-template-columns:1fr 32px;grid-template-areas:"meta arrow""body body"}.learn-row-meta{flex-direction:row;grid-area:meta;align-items:center}.learn-row-body{grid-area:body}.learn-row-arrow{grid-area:arrow;align-self:start}}