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var(--line);color:var(--text-2);background:var(--surface-soft);white-space:nowrap}.pill-brand{border-color:var(--brand-soft);color:var(--brand-text);background:var(--brand-soft)}.pill-sand{border-color:var(--sand-border);color:#92400e;background:var(--sand)}.pill-accent{border-color:#bfdbfe;color:#1d4ed8;background:var(--accent-soft)}.filter-chips{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.chip{display:inline-flex;align-items:center;gap:5px;padding:6px 14px;border:1.5px solid var(--line-strong);border-radius:999px;font-size:var(--text-sm);font-weight:500;color:var(--text-2);background:var(--surface);cursor:pointer;white-space:nowrap;transition:border-color var(--dur-fast),background var(--dur-fast),color var(--dur-fast);text-decoration:none}.chip:hover{border-color:var(--brand);color:var(--brand-text);background:var(--brand-soft)}.chip.active{border-color:var(--brand);background:var(--brand);color:#fff}.icon-badge{width:48px;height:48px;border-radius:var(--radius-sm);display:grid;place-items:center;background:var(--brand-soft);color:var(--brand-text);flex-shrink:0}.icon-badge-sand{background:var(--sand);color:#92400e}.icon-badge-accent{background:var(--accent-soft);color:#1d4ed8}.book-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:border-color var(--dur-fast),box-shadow var(--dur-base),transform var(--dur-base)}.book-card:hover{border-color:var(--line-strong);box-shadow:var(--shadow-md);transform:translateY(-3px)}.book-card-cover{position:relative;aspect-ratio:2 / 3;overflow:hidden;background:var(--surface-soft)}.book-card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .36s var(--ease-out)}.book-card:hover .book-card-cover img{transform:scale(1.04)}.book-card-cover .preview-badge{position:absolute;inset-block-start:10px;inset-inline-start:10px}.book-card-body{padding:1rem;display:flex;flex-direction:column;gap:6px;flex:1}.book-card-title{font-size:var(--text-base);font-weight:700;line-height:1.3;margin:0;color:var(--text)}.book-card-meta{font-size:var(--text-xs);color:var(--muted)}.book-card-price{margin-block-start:auto;display:flex;align-items:baseline;gap:6px}.book-card-actions{display:flex;flex-direction:column;gap:6px;margin-block-start:8px}.price{font-size:var(--text-xl);font-weight:800;color:var(--text)}.price-old{color:var(--muted);text-decoration:line-through;font-size:var(--text-base);font-weight:400}.price-free{color:var(--brand-text);font-weight:700}.proof-strip{background:var(--surface-soft);border-block:1px solid var(--line);padding:1rem 0}.proof-strip-inner{width:var(--container);margin-inline:auto;display:flex;align-items:center;justify-content:center;gap:clamp(1.5rem,4vw,3rem);flex-wrap:wrap}.proof-item{display:flex;align-items:center;gap:8px;font-size:var(--text-sm);font-weight:600;color:var(--text-2)}.proof-item-icon{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand-text);font-size:14px;flex-shrink:0}.trust-list{display:flex;flex-direction:column;gap:10px}.trust-item{display:flex;align-items:flex-start;gap:10px;font-size:var(--text-sm);color:var(--text-2);line-height:1.5}.trust-item-icon{font-size:1rem;flex-shrink:0;margin-block-start:1px}.faq-list{display:flex;flex-direction:column;gap:8px}.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;transition:border-color var(--dur-fast)}.faq-item[open]{border-color:var(--brand-soft)}.faq-q{padding:14px 18px;font-size:var(--text-base);font-weight:600;cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:12px;user-select:none;background:var(--surface);transition:background var(--dur-fast)}.faq-q::-webkit-details-marker{display:none}.faq-q:after{content:"+";font-size:1.3rem;font-weight:300;color:var(--muted);flex-shrink:0;transition:transform var(--dur-fast)}.faq-item[open] .faq-q:after{transform:rotate(45deg)}.faq-item[open] .faq-q{background:var(--surface-soft)}.faq-a{padding:0 18px 14px;margin:0;color:var(--muted);line-height:1.7;font-size:var(--text-sm);border-block-start:1px solid var(--line);background:var(--surface)}.stat-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.25rem;text-align:center}.stat-value{font-size:var(--text-3xl);font-weight:800;color:var(--text);line-height:1;margin-block-end:4px}.stat-label{font-size:var(--text-sm);color:var(--muted)}.hero{padding-block:clamp(3rem,7vw,6rem);background:linear-gradient(160deg,var(--surface) 0%,var(--sand) 100%);border-block-end:1px solid var(--line);overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,5vw,4rem);align-items:center}.hero-eyebrow{display:inline-flex;align-items:center;gap:6px;background:var(--brand-soft);color:var(--brand-text);border:1px solid var(--brand-soft);border-radius:999px;padding:4px 12px;font-size:var(--text-xs);font-weight:700;margin-block-end:1rem;letter-spacing:.02em}.hero-title{font-size:clamp(2.2rem,5.5vw,3.5rem);font-weight:800;line-height:1.1;margin-block-end:1rem;letter-spacing:-.02em}.hero-lead{font-size:clamp(var(--text-base),2vw,var(--text-lg));color:var(--text-2);margin-block-end:2rem;line-height:1.7;max-width:520px}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.hero-proof-panel{display:grid;grid-template-columns:1fr 1fr;gap:12px}.order-expect-box{background:var(--sand);border:1.5px solid var(--sand-border);border-radius:var(--radius-sm);padding:14px 16px;font-size:var(--text-sm);line-height:1.6}.order-expect-box strong{color:var(--text)}.sticky-mobile-cta{display:none;position:fixed;inset-block-end:0;inset-inline:0;z-index:30;background:var(--surface);border-block-start:1px solid var(--line);padding:12px 16px;box-shadow:0 -4px 20px #00000014}.layout-learn{display:grid;grid-template-columns:280px 1fr;gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;min-height:60vh}.sidebar{position:sticky;top:64px;max-height:calc(100dvh - 64px);overflow-y:auto;align-self:start;background:var(--surface-soft);border-inline-end:1px solid var(--line)}.sidebar-header{padding:16px;border-block-end:1px solid var(--line);font-weight:700;font-size:var(--text-sm);color:var(--muted);text-transform:uppercase;letter-spacing:.06em}.sidebar ul{list-style:none;margin:0;padding:8px;display:flex;flex-direction:column;gap:2px}.sidebar a{display:flex;align-items:center;justify-content:space-between;gap:8px;border-radius:var(--radius-xs);padding:8px 10px;font-size:var(--text-sm);color:var(--text-2);transition:background var(--dur-fast),color var(--dur-fast)}.sidebar a:hover{background:var(--surface-warm);color:var(--text)}.sidebar a.active{background:var(--brand-soft);color:var(--brand-text);font-weight:600}.lesson-content{background:var(--surface);padding:clamp(1.5rem,3vw,2.5rem);min-width:0}.lesson-content h1{font-size:var(--text-3xl);margin-block-end:.5rem}.lesson-content h2{font-size:var(--text-2xl);margin-block:2rem .75rem;color:var(--text-2)}.lesson-content h3{font-size:var(--text-xl);margin-block:1.5rem .5rem}.lesson-content p{color:var(--text-2);line-height:1.8;margin-block-end:1rem}.lesson-content pre{background:#1e1a16;color:#f5f0e8;border-radius:var(--radius-sm);padding:1rem 1.25rem;overflow-x:auto;font-size:var(--text-sm);line-height:1.6;margin-block:1.5rem}.lesson-content blockquote{border-inline-start:3px solid var(--brand);margin-inline:0;padding:.75rem 1.25rem;background:var(--brand-soft);border-radius:0 var(--radius-xs) var(--radius-xs) 0;color:var(--brand-text)}.quiz{margin-block:2rem;padding:1.25rem 1.5rem;border-radius:var(--radius-sm);border:1.5px solid var(--line-strong);background:var(--surface-soft)}.quiz h3{margin-block-end:1rem;font-size:var(--text-lg)}.reader-layout{display:grid;grid-template-columns:260px 1fr 260px;gap:0;min-height:calc(100dvh - 64px)}.reader-sidebar{position:sticky;top:64px;max-height:calc(100dvh - 64px);overflow-y:auto;align-self:start;background:var(--surface-soft);border-inline-end:1px solid var(--line);padding:1.25rem}.reader-content{background:var(--surface);padding:clamp(1.5rem,3vw,3rem);min-width:0;border-inline-end:1px solid var(--line)}.reader-rail{position:sticky;top:64px;max-height:calc(100dvh - 64px);overflow-y:auto;align-self:start;padding:1.25rem;background:var(--surface)}.locked-section{border:1.5px dashed var(--line-strong);border-radius:var(--radius-sm);background:var(--surface-soft);padding:1.5rem;margin-block-end:1rem;text-align:center}.locked-section h3{margin-block-end:.5rem;font-size:var(--text-base);color:var(--muted)}.locked-section p{margin:0;font-size:var(--text-sm);color:var(--muted)}.paywall-box{border:1.5px solid var(--brand-soft);border-radius:var(--radius);background:linear-gradient(135deg,var(--brand-soft) 0%,#fff 60%);padding:1.5rem;margin-block-start:2rem}.paywall-box h3{margin-block-end:.5rem;color:var(--brand-text)}.product-layout{display:grid;grid-template-columns:340px 1fr;gap:2.5rem;align-items:start}.product-cover img{border-radius:var(--radius);width:100%;box-shadow:var(--shadow-lg)}.product-action-rail{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;display:flex;flex-direction:column;gap:14px}.product-price-row{display:flex;align-items:baseline;gap:10px}.cart-layout{grid-template-columns:1fr 420px;align-items:start}.checkout-summary{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;position:sticky;top:80px}.field{display:grid;gap:6px;margin-block-end:14px}.field label{font-size:var(--text-sm);font-weight:600;color:var(--text-2)}.field input,.field select,.field textarea{border:1.5px solid var(--line-strong);border-radius:var(--radius-sm);padding:10px 14px;background:var(--surface);color:var(--text);transition:border-color var(--dur-fast),box-shadow var(--dur-fast)}.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:var(--shadow-focus)}.field textarea{min-height:100px;resize:vertical}.auth-wrap{max-width:460px;margin-inline:auto;padding-block:clamp(2.5rem,6vw,5rem)}.auth-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-xl);padding:clamp(1.5rem,3vw,2.5rem);box-shadow:var(--shadow-sm)}.admin-layout{display:grid;grid-template-columns:260px 1fr;gap:0;border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden}.admin-menu{position:sticky;top:64px;align-self:start;background:var(--surface-soft);border-inline-end:1px solid var(--line)}.admin-menu ul{margin:0;padding:8px;list-style:none;display:flex;flex-direction:column;gap:2px}.admin-menu a{display:block;padding:8px 12px;border-radius:var(--radius-xs);background:transparent;color:var(--text-2);font-size:var(--text-sm);transition:background var(--dur-fast),color var(--dur-fast)}.admin-menu a.active,.admin-menu a:hover{background:var(--surface-warm);color:var(--text)}.admin-panel{background:var(--surface);padding:1.5rem;min-width:0}.admin-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px}.table{width:100%;border-collapse:collapse}.table th,.table td{border-block-end:1px solid var(--line);padding:10px 8px;text-align:start;font-size:var(--text-sm)}.table th{color:var(--muted);font-weight:700;font-size:var(--text-xs);text-transform:uppercase;letter-spacing:.06em}.site-footer{background:var(--text);color:#ffffffbf;padding-block:clamp(2.5rem,5vw,4rem) 1.5rem;margin-block-start:auto}.footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:2.5rem;margin-block-end:2.5rem}.footer-brand{display:inline-flex;align-items:center;margin-block-end:.75rem}.footer-brand>span{display:none}.footer-brand-lockup{width:min(190px,46vw);height:auto;display:block}.footer-tagline{font-size:var(--text-sm);line-height:1.6;color:#fff9;max-width:260px}.footer-col-title{color:#fff;font-size:var(--text-sm);font-weight:700;margin-block-end:.875rem;text-transform:uppercase;letter-spacing:.06em}.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.footer-links a{font-size:var(--text-sm);color:#ffffffa6;transition:color var(--dur-fast)}.footer-links a:hover{color:#fff}.footer-bottom{border-block-start:1px solid rgb(255 255 255 / .1);padding-block-start:1.25rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:var(--text-xs);color:#ffffff73}.mono{font-family:JetBrains Mono Variable,JetBrains Mono,monospace}.text-muted{color:var(--muted)}.text-brand{color:var(--brand-text)}.text-center{text-align:center}.mt-auto{margin-block-start:auto}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border-width:0}.divider{height:1px;background:var(--line);margin-block:1.5rem}@media(prefers-reduced-motion:no-preference){.reveal{opacity:0;transform:translateY(16px);transition:opacity var(--dur-base) var(--ease-out),transform var(--dur-base) var(--ease-out)}.reveal.visible{opacity:1;transform:none}}@media(max-width:1024px){.reader-layout{grid-template-columns:220px 1fr 220px}}@media(max-width:900px){.hero-grid,.product-layout{grid-template-columns:1fr}.hero-proof-panel{display:none}.reader-layout{grid-template-columns:1fr}.reader-sidebar,.reader-rail{position:static;max-height:none}.cart-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}}@media(max-width:768px){.layout-learn{grid-template-columns:1fr}.sidebar{position:static;max-height:none;border-inline-end:none;border-block-end:1px solid var(--line)}.admin-layout{grid-template-columns:1fr}.admin-menu{position:static}.sticky-mobile-cta{display:flex;gap:10px;align-items:center}}@media(max-width:640px){.topnav,.user-actions .btn:not(.btn-brand){display:none}.nav-toggle{display:inline-flex}.footer-grid{grid-template-columns:1fr}.trust-strip-inner{gap:.75rem;font-size:.7rem}}