[data-library-surface=direction-a]{background:var(--dars-bg);inline-size:100%;max-inline-size:none;color:var(--dars-ink);margin:0;padding:0}[data-library-surface=direction-a] *,[data-library-surface=direction-a] :before,[data-library-surface=direction-a] :after{box-sizing:border-box}.dars-library-deep__bar{align-items:center;gap:var(--dars-space-2);min-block-size:56px;inline-size:min(1040px,100%);padding-inline:clamp(var(--dars-space-4), 4vw, 40px);border-block-end:1px solid var(--dars-line);color:var(--dars-muted);font-size:var(--dars-fs-sm);margin-inline:auto;line-height:1.45;display:flex}.dars-library-deep__bar a{align-items:center;gap:var(--dars-space-2);border-radius:var(--dars-r-sm);min-block-size:44px;color:var(--dars-brand-text);font-weight:700;text-decoration:none;display:inline-flex}.dars-library-deep__bar-current{overflow-wrap:anywhere;min-inline-size:0;color:var(--dars-ink);font-weight:700}.dars-library-deep__bar-separator{color:var(--dars-line)}[data-library-surface=direction-a]>.dars-browse{min-block-size:auto;inline-size:min(1040px,100%);padding:var(--dars-space-6) clamp(var(--dars-space-4), 4vw, 40px) calc(var(--dars-space-8) + env(safe-area-inset-bottom));background:0 0;justify-content:flex-start;margin-inline:auto}[data-library-surface=direction-a] .dars-browse-crumbs{gap:var(--dars-space-1)}[data-library-surface=direction-a] .dars-browse-crumbs a{min-block-size:44px;padding-inline:var(--dars-space-2);border-radius:var(--dars-r-sm);align-items:center;display:inline-flex}[data-library-surface=direction-a] .dars-browse-hero{gap:var(--dars-space-2);border-block-end:1px solid var(--dars-line);flex-direction:column;padding-block-end:var(--dars-space-5);display:flex}[data-library-surface=direction-a] .dars-browse-eyebrow{color:var(--dars-brand-text);font-size:var(--dars-fs-sm);margin:0;line-height:1.4}[data-library-surface=direction-a] .dars-browse-hero h1{max-inline-size:24ch;color:var(--dars-ink);letter-spacing:normal;text-wrap:balance;overflow-wrap:anywhere;margin:0;font-size:1.875rem;font-weight:800;line-height:1.3}[data-library-surface=direction-a] .dars-browse-hero p{max-inline-size:72ch;font-size:var(--dars-fs-lg);text-wrap:pretty;line-height:1.7}[data-library-surface=direction-a] .dars-browse-grid{border-radius:var(--dars-r-lg);background:var(--dars-surface);flex-direction:column;gap:0;display:flex;overflow:clip}[data-library-surface=direction-a] .dars-browse-grid li+li{border-block-start:1px solid var(--dars-line)}[data-library-surface=direction-a] .dars-browse-subject{justify-content:space-between;align-items:center;gap:var(--dars-space-4);min-block-size:68px;padding:var(--dars-space-4);border-radius:var(--dars-r-sm);background:0 0;border:0;display:flex}[data-library-surface=direction-a] .dars-browse-subject-name,[data-library-surface=direction-a] .dars-browse-subject-meta{margin:0}[data-library-surface=direction-a] .dars-browse-subject-name{overflow-wrap:anywhere;min-inline-size:0;font-size:var(--dars-fs-lg)}[data-library-surface=direction-a] .dars-browse-subject-meta{flex:none}[data-library-surface=direction-a] .dars-book-grid{grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}[data-library-surface=direction-a] .dars-book-card{border-radius:var(--dars-r-md);box-shadow:none}[data-library-surface=direction-a] .dars-book-tree{border-radius:var(--dars-r-lg);background:var(--dars-surface);gap:0;overflow:clip}[data-library-surface=direction-a] .dars-book-tree .dars-book-tree{background:0 0;border-radius:0;margin-block-start:0}[data-library-surface=direction-a] .dars-book-tree-item{border:0;border-block-end:1px solid var(--dars-line);border-radius:var(--dars-r-sm);background:0 0;min-block-size:52px}[data-library-surface=direction-a] .dars-book-launch,[data-library-surface=direction-a] .dars-browse-cta{border-radius:var(--dars-r-md);min-block-size:44px}[data-library-surface=direction-a] .dars-book-card,[data-library-surface=direction-a] .dars-book-edition-pill,[data-library-surface=direction-a] .dars-browse-topic-index a,[data-library-surface=direction-a] .dars-book-start-over,[data-library-surface=direction-a] .dars-browse-topic-more,[data-library-surface=direction-a] .dars-ghost{min-block-size:44px}[data-library-surface=direction-a] .dars-browse-q,[data-library-surface=direction-a] .dn-card{box-shadow:none}[data-library-surface=direction-a] .dars-browse-layout{gap:var(--dars-space-7)}[data-library-surface=direction-a] .dars-browse-topic-index{margin-block-start:0}[data-library-surface=direction-a] .dars-browse-topic-index a{background:var(--dars-panel);border:0}[data-library-surface=direction-a] .dars-browse-q{border-radius:var(--dars-r-lg);border:0}[data-library-surface=direction-a] .dars-browse-opt{background:var(--dars-panel)}[data-library-surface=direction-a] .dars-browse-why{padding:var(--dars-space-3);border-radius:var(--dars-r-sm);background:var(--dars-panel);border-inline-start:0;margin-block-start:var(--dars-space-2)}[data-library-surface=direction-a] .dars-browse-why--correct{background:color-mix(in srgb, var(--dars-ok) 10%, var(--dars-panel))}[data-library-surface=direction-a] .dars-browse-why--wrong{background:color-mix(in srgb, var(--dars-danger) 9%, var(--dars-panel))}[data-library-surface=direction-a]>.dars-tool-page-title{inline-size:min(1040px,100% - 32px);color:var(--dars-ink);letter-spacing:normal;text-wrap:balance;margin-block-start:var(--dars-space-6);margin-inline:auto;font-size:1.875rem;font-weight:800}[data-library-surface=direction-a][data-library-area=notes]>.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;block-size:1px;inline-size:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}[data-library-surface=direction-a]>.dars-notes{background:0 0;min-block-size:auto}[data-library-surface=direction-a] .dars-notes-shell{max-inline-size:1040px;padding-block-start:var(--dars-space-5)}[data-library-surface=direction-a] .dn-topbar{border-block-end:1px solid var(--dars-line);padding-block-end:var(--dars-space-3)}[data-library-surface=direction-a] .dn-card{border-radius:var(--dars-r-lg);background:var(--dars-surface);border:0}[data-library-surface=direction-a] .dn-modal{border-radius:var(--dars-r-lg);border:0}[data-library-surface=direction-a] :is(.dn-error,.dn-note-item,.dn-att){border-radius:var(--dars-r-md)}[data-library-surface=direction-a] .dn-att img{border-radius:var(--dars-r-sm)}[data-library-surface=direction-a] .dn-list{gap:var(--dars-space-3)}[data-library-surface=direction-a] .dn-list>.dn-eyebrow{margin-block:var(--dars-space-2) 0;color:var(--dars-ink);font-size:var(--dars-fs-lg);grid-column:1/-1;font-weight:700}[data-library-surface=direction-a] .dn-note-item{border-radius:var(--dars-r-md);background:var(--dars-panel);border:0;min-block-size:56px}[data-library-surface=direction-a] :is(.dn-primary,.dn-ghost,.dn-pill,.dn-input,.dn-textarea){min-block-size:44px}[data-library-surface=direction-a] :is(.dars-library-deep__bar a,.dars-browse-crumbs a,.dars-browse-subject,.dars-book-card,.dars-book-edition-pill,.dars-book-tree-item,.dars-book-launch,.dars-book-start-over,.dars-browse-cta,.dars-browse-topic-more,.dars-browse-topic-index a,.dn-primary,.dn-ghost,.dn-pill,.dn-note-item,.dn-input,.dn-textarea):focus-visible{outline:var(--dars-focus-ring);outline-offset:var(--dars-focus-offset)}@media (hover:hover){[data-library-surface=direction-a] .dars-library-deep__bar a:hover,[data-library-surface=direction-a] .dars-browse-crumbs a:hover{color:var(--dars-ink)}[data-library-surface=direction-a] .dars-browse-subject:hover,[data-library-surface=direction-a] .dars-book-tree-item:hover,[data-library-surface=direction-a] .dn-note-item:hover{background:color-mix(in srgb, var(--dars-ink) 6%, var(--dars-panel))}}@media (max-width:799.98px){[data-library-surface=direction-a]>.dars-browse{gap:var(--dars-space-5);padding-block-start:var(--dars-space-5)}[data-library-surface=direction-a] .dars-browse-actions{flex-direction:column;align-items:stretch}[data-library-surface=direction-a] .dars-browse-actions>*{justify-content:center;inline-size:100%}}@media 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