.learn-hero{background:linear-gradient(135deg, #0f0d07 0%, var(--color-gold-deep) 50%, #0f0d07 100%);padding:var(--space-7) var(--space-5) 2.5rem;text-align:center}.learn-hero-inner{max-width:640px;margin-inline:auto}.learn-hero h1{font-size:clamp(1.9rem,4.5vw,2.8rem);font-weight:var(--weight-extrabold);color:var(--color-gold-light);margin-bottom:var(--space-2)}.learn-hero p{color:#ffffff80;font-size:.95rem}.learn-toc{background:var(--color-surface-1);border-bottom:1px solid var(--color-border);padding:var(--space-3) var(--space-5);top:var(--nav-height,56px);z-index:90;position:sticky}.learn-toc-inner{align-items:center;gap:var(--space-4);-webkit-overflow-scrolling:touch;scrollbar-width:none;max-width:860px;margin-inline:auto;display:flex;overflow-x:auto}.learn-toc-inner::-webkit-scrollbar{display:none}.learn-toc-label{font-size:.72rem;font-weight:var(--weight-bold);text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-muted);white-space:nowrap;flex-shrink:0}.learn-toc-list{gap:var(--space-4);flex-wrap:nowrap;margin:0;padding:0;list-style:none;display:flex}.learn-toc-list a{font-size:.82rem;font-weight:var(--weight-semibold);color:var(--color-text-muted);white-space:nowrap;text-decoration:none;transition:color .15s}.learn-toc-list a:hover{color:var(--color-gold)}.learn-toc-list a.is-active{color:var(--color-gold);border-bottom:2px solid var(--color-gold);padding-bottom:1px}.learn-body{flex-direction:column;gap:0;max-width:800px;margin-inline:auto;padding:2rem 1.5rem 4rem;display:flex}.learn-section{border-bottom:1px solid var(--color-border);padding:2.5rem 0}.learn-section:last-child{border-bottom:none}.learn-section h2{font-size:var(--text-xl);font-weight:var(--weight-extrabold);margin-bottom:var(--space-3);color:var(--color-text);scroll-margin-top:var(--space-8)}.learn-section h3{font-size:1.05rem;font-weight:var(--weight-bold);margin-top:var(--space-5);margin-bottom:var(--space-2);color:var(--color-text)}.learn-section p{color:var(--color-text-secondary,var(--color-text));margin-bottom:var(--space-3);font-size:.95rem;line-height:1.75}.learn-section ul{margin-bottom:var(--space-3);flex-direction:column;gap:.4rem;padding-inline-start:1.4rem;display:flex}.learn-section li{color:var(--color-text);font-size:.93rem;line-height:1.65}.learn-section a{color:var(--color-gold);text-decoration:underline}.learn-callout{border:1px solid #c9a84c4d;border-inline-start:3px solid var(--color-gold);border-radius:var(--radius-sm);background:#c9a84c14;margin-top:1.25rem;padding:1rem 1.2rem}.learn-callout--info{background:#3b82f60f;border-color:#3b82f64d #3b82f64d #3b82f64d #3b82f6}.learn-callout strong{font-size:.82rem;font-weight:var(--weight-bold);text-transform:uppercase;letter-spacing:.06em;color:var(--color-gold-muted);margin-bottom:.35rem;display:block}.learn-callout p{font-size:.88rem;font-family:var(--font-mono,monospace);margin-bottom:0}.learn-callout--info strong{color:#93c5fd}.learn-karat-table-wrap{border-radius:var(--radius-md);border:1px solid var(--color-border);margin:1.25rem 0;overflow-x:auto}.learn-karat-table{border-collapse:collapse;width:100%;font-size:.88rem}.learn-karat-table th{background:var(--color-surface-2);text-align:start;font-size:var(--text-xs);font-weight:var(--weight-bold);color:var(--color-text-muted);text-transform:uppercase;letter-spacing:var(--tracking-wider);border-bottom:1px solid var(--color-border);padding:.65rem 1rem}.learn-karat-table td{border-bottom:1px solid var(--color-border);padding:.75rem 1rem}.learn-karat-table tbody tr:last-child td{border-bottom:none}.learn-karat-table tbody tr:hover{background:var(--color-surface-2)}.learn-purity-bar{background:var(--color-surface-2);border-radius:var(--radius-xs);width:80px;height:8px;display:block;overflow:hidden}.learn-purity-bar>span{background:var(--color-gold);border-radius:var(--radius-xs);height:100%;display:block}[dir=rtl] .learn-toc-inner,[dir=rtl] .learn-toc-list{flex-direction:row-reverse}[dir=rtl] .learn-callout{border-inline-start:3px solid var(--color-gold)}[dir=rtl] .learn-callout--info{border-right-color:#3b82f6}[dir=rtl] .learn-section ul{padding-inline-start:1.4rem}[dir=rtl] .learn-karat-table th,[dir=rtl] .learn-karat-table td{text-align:start}@media (width<=768px){.learn-hero{padding:2.5rem 1.1rem 2rem}.learn-body{padding:1.5rem 1rem 3rem}.learn-section{padding:2rem 0}.learn-karat-table-wrap{font-size:.82rem}}@media (width<=480px){.learn-hero h1{font-size:1.7rem}.learn-section h2{font-size:1.2rem}.learn-toc-inner,.learn-toc-list{gap:.6rem}.learn-toc-list a{font-size:.78rem}}@media (width<=380px){.learn-hero{padding:1.75rem .85rem 1.5rem}.learn-callout{padding:.85rem 1rem}}.learn-tools-section{border-top:1px solid var(--color-border);max-width:760px;margin-inline:auto;padding:2rem 1.5rem 3rem}