.library-page{box-sizing:border-box;width:100%;max-width:960px;color:var(--mathy-ink);overflow-wrap:anywhere;margin-inline:auto;padding:28px 24px 48px;font-family:system-ui,sans-serif;font-size:18px;line-height:1.65}.library-page *{box-sizing:border-box}.library-page h1:not(:where(.library-app-problem *)){letter-spacing:-.035em;margin-block:12px 20px;font-size:clamp(2rem,5vw,3.2rem);line-height:1.12}.library-page h2:not(:where(.library-app-problem *)){margin-block:0 18px;font-size:1.5rem;line-height:1.25}.library-page h3:not(:where(.library-app-problem *)){margin-block:0 10px;font-size:1.1rem;line-height:1.35}.library-page p{margin-block:12px}.library-page section{margin-block:40px}.library-page a{color:var(--mathy-forest);text-underline-offset:.2em}.library-breadcrumb{color:var(--mathy-ink-muted);font-size:.9rem}.library-intro{max-width:760px;margin-block:28px 40px}.library-eyebrow{color:var(--mathy-ink-muted);text-transform:uppercase;letter-spacing:.06em;font-size:.85rem;font-weight:650}.library-lede{font-size:1.2rem}.library-page .library-start{background:var(--mathy-forest);min-height:44px;color:var(--mathy-accent-foreground);text-align:center;border-radius:10px;justify-content:center;align-items:center;max-width:100%;margin-block:14px;padding:12px 20px;font-weight:650;text-decoration:none;display:inline-flex}.library-page .library-start-small{flex-shrink:0;padding:8px 18px}.library-condition{color:var(--mathy-ink-muted);font-size:.9rem}.library-examples{grid-template-columns:repeat(auto-fit,minmax(min(100%,340px),1fr));gap:18px;display:grid}.library-example{background:var(--mathy-surface-quiet);border:1px solid var(--mathy-border);border-radius:14px;min-width:0;margin:0;padding:22px}.library-example details{border-block-start:1px solid var(--mathy-border);margin-block-start:20px;padding-block-start:12px}.library-example summary{cursor:pointer;min-height:44px;color:var(--mathy-forest);font-weight:650}.library-math{white-space:nowrap;text-align:center;unicode-bidi:isolate;max-width:100%;padding-block:12px;font-size:1.45rem;line-height:1.5;overflow-x:auto}.library-vector{max-width:none;display:inline-block}.library-prose{white-space:normal;overflow-wrap:anywhere;text-align:start}.library-vector svg{width:100%;height:100%;color:var(--mathy-ink)}.library-diagram{max-width:320px;margin-inline:auto}.library-diagram svg{width:100%;height:auto}.library-diagram-key{gap:.4rem;margin:.5rem 0 0;font-size:1rem;line-height:1.5;display:grid}.library-diagram-caption{text-align:center;margin:.4rem 0 0;font-size:.875rem}.library-diagram-key>div{grid-template-columns:1.5rem minmax(0,1fr);gap:.5rem;display:grid}.library-diagram-key dt{font-weight:600}.library-diagram-key dd{overflow-wrap:anywhere;margin:0}.library-members{padding:0;list-style:none}.library-members>li{border-block-end:1px solid var(--mathy-border);justify-content:space-between;align-items:center;gap:20px;padding-block:22px;display:flex}.library-members p{color:var(--mathy-ink-muted);font-size:1rem}.library-links{padding-inline-start:24px}.library-links li{padding-block:8px}.library-discovery{border:1px solid var(--mathy-border);background:var(--mathy-surface-quiet);border-radius:14px;padding:20px}.library-discovery details{margin-block:16px}.library-discovery summary{cursor:pointer;min-height:44px}.library-discovery a{min-height:44px;padding-block:8px;display:inline-block}.library-discovery ul{margin-block:8px}.library-discovery h2{font-size:1.2rem}.library-discovery h3{font-size:1rem}@media (width<=480px){.library-page{padding-inline:16px;font-size:17px}.library-members>li{flex-wrap:wrap;align-items:flex-start}.library-example{padding:16px}}@media (prefers-reduced-motion:reduce){.library-page *{scroll-behavior:auto}}.library-page .library-practice-cta{background:var(--mathy-surface-quiet);border:1px solid var(--mathy-border);border-radius:20px;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:20px 28px;margin-block:30px 42px;padding:28px 30px;display:grid}.library-practice-cta h2{margin:0;font-size:1.2rem}.library-practice-cta h2 span{letter-spacing:-.025em;margin-block-start:8px;font-size:clamp(1.5rem,3vw,2rem);display:block}.library-cta-actions{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:16px;min-width:0;display:flex}.library-cta-actions .library-start{gap:10px;height:44px;margin:0;padding-block:0}.library-store{flex-shrink:0;display:inline-flex}.library-store img{display:block}.library-cta-trust{color:var(--mathy-ink-muted);flex-wrap:wrap;grid-column:1/-1;gap:8px 24px;margin:0;padding:0;font-size:.85rem;list-style:none;display:flex}.library-cta-trust li span{color:var(--mathy-forest);margin-inline-end:4px}.library-demo-heading{text-align:center;margin-block-end:28px}.library-demo-heading h2{letter-spacing:-.03em;font-size:clamp(1.7rem,4vw,2.3rem)}.library-example-stage{background:var(--mathy-surface-quiet);border-radius:24px;grid-template-columns:minmax(0,420px);justify-content:center;padding:32px;display:grid}.library-demo-root{min-width:0}.library-practice-window{background:var(--mathy-surface);border:1px solid var(--mathy-border);border-radius:22px;min-width:0;padding:24px;box-shadow:0 10px 30px #19211d0d}.library-window-top{justify-content:space-between;align-items:center;gap:12px;display:flex}.library-window-top h3,.library-window-top>span{color:var(--mathy-ink-muted);margin:0;font-size:.8rem;font-weight:400}.library-sample-progress{background:var(--mathy-border);border-radius:10px;height:5px;margin:18px 0 24px;overflow:hidden}.library-sample-progress>span{background:var(--mathy-forest);height:100%;display:block}.library-practice-window .library-example{background:0 0;border:0;border-radius:0;margin-block-end:24px;padding:0}.library-practice-window .library-math{padding-block:20px;font-size:clamp(1.7rem,4vw,2.4rem)}.library-practice-window .library-instruction{text-align:center;font-size:1rem}.library-practice-window input{min-width:0;max-width:100%}.library-app-problem{min-width:0;margin-block:24px}.library-demo-notice{margin-top:12px}.library-demo-feedback{min-height:30px;color:var(--mathy-danger);font-size:1rem}.library-demo-feedback.is-correct{color:var(--mathy-success);font-weight:600}.library-page .library-demo-next,.library-page .library-demo-launch{width:100%;font:inherit;cursor:pointer;border:0;gap:10px}.library-page .library-demo-launch:disabled{opacity:.7;cursor:wait}.library-completion{text-align:center;padding-block:40px}.library-completion h3{margin-block-start:18px;font-size:1.8rem}.library-completion .library-cta-actions{justify-content:center}.library-completion-check{background:var(--mathy-success-surface);width:54px;height:54px;color:var(--mathy-success);border-radius:50%;place-items:center;margin:auto;font-size:29px;display:grid}.library-context-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;display:grid}.library-page button:focus-visible,.library-page a:focus-visible,.library-page summary:focus-visible{outline:3px solid var(--mathy-forest);outline-offset:4px}@media (width<=760px){.library-page .library-practice-cta{grid-template-columns:minmax(0,1fr);padding:24px}.library-cta-actions{justify-content:flex-start}.library-example-stage{padding:24px}.library-practice-window{width:100%;max-width:420px;margin:auto}.library-context-grid{grid-template-columns:minmax(0,1fr);gap:20px}}@media (width<=380px){.library-page .library-practice-cta{padding:22px 18px}.library-example-stage{padding:16px}.library-practice-window{padding:18px}.library-cta-trust{gap:7px;display:grid}.library-practice-cta .library-start{width:100%}}