@layer components{.lib-page{position:relative;isolation:isolate;min-height:100svh;overflow-x:clip}.lib-top{position:absolute;inset-inline:0;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px}@media (min-width:640px){.lib-top{padding:14px 24px}}.lib-pill{display:inline-flex;min-width:0;align-items:center;gap:10px;height:44px;padding-inline:4px 16px;border-radius:999px;font-size:13px;transition:transform .4s var(--st-spring-pop),background .3s}.lib-pill:hover{transform:translateY(-1px)}.lib-hero{position:relative;isolation:isolate;overflow:hidden;display:flex;flex-direction:column;justify-content:flex-end;min-height:min(74svh,660px);background:var(--st-photo-ground)}.lib-hero[data-compact]{min-height:min(56svh,500px)}.lib-hero-body{position:relative;z-index:2;width:100%;max-width:1240px;margin-inline:auto;padding:120px 20px 36px}@media (min-width:640px){.lib-hero-body{padding:140px 40px 48px}}@media (max-width:639px){.lib-hero[data-photo] .lib-hero-body{padding-top:46svh}.lib-hero[data-photo][data-compact] .lib-hero-body{padding-top:34svh}}.lib-title{margin:0;font-family:var(--st-display,inherit);font-size:clamp(3rem,9vw,7rem);line-height:.9;font-weight:600;letter-spacing:-.048em;text-wrap:balance;text-shadow:0 2px 40px rgba(0,0,0,.25)}.lib-hero[data-compact] .lib-title{font-size:clamp(2.5rem,7vw,5.25rem)}.lib-eyebrow{display:inline-flex;align-items:center;gap:8px;height:30px;padding-inline:6px 12px;border-radius:999px;font-size:12.5px;color:color-mix(in oklab,var(--foreground) 88%,transparent)}.lib-eyebrow-icon{display:grid;place-items:center;width:20px;height:20px;border-radius:999px;color:var(--st-on-accent);background:var(--st-accent);box-shadow:0 4px 12px -4px var(--st-accent)}.lib-stats{display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px;font-family:var(--font-st-mono),ui-monospace,monospace;font-size:12px;color:color-mix(in oklab,var(--foreground) 70%,transparent)}.lib-stats>*+:before{content:"";display:inline-block;width:3px;height:3px;margin-inline-end:14px;border-radius:999px;vertical-align:middle;background:currentColor;opacity:.6}.lib-search{display:flex;align-items:center;gap:10px;width:min(100%,560px);height:56px;padding-inline:18px 8px;border-radius:999px;background:color-mix(in oklab,var(--card) 66%,transparent);-webkit-backdrop-filter:blur(24px) saturate(1.6);backdrop-filter:blur(24px) saturate(1.6);border:1px solid color-mix(in oklab,var(--foreground) 16%,transparent);box-shadow:inset 0 1px 0 var(--st-glass-hi),0 18px 50px -18px rgba(0,0,0,.55);transition:border-color .3s,box-shadow .4s}.lib-search:focus-within{border-color:color-mix(in oklab,var(--st-accent) 60%,transparent);box-shadow:inset 0 1px 0 var(--st-glass-hi),0 0 0 4px color-mix(in oklab,var(--st-accent) 16%,transparent),0 18px 50px -18px rgba(0,0,0,.55)}.lib-search input{min-width:0;flex:1;height:100%;border:0;outline:none;background:transparent;font-size:16px;color:var(--foreground)}.lib-search input::placeholder{color:var(--st-muted)}.lib-search input::-webkit-search-cancel-button{display:none}.lib-bar{position:sticky;top:0;z-index:20;background:color-mix(in oklab,var(--background) 74%,transparent);-webkit-backdrop-filter:blur(22px) saturate(1.5);backdrop-filter:blur(22px) saturate(1.5);border-bottom:1px solid var(--st-line)}.lib-bar-row{display:flex;align-items:center;gap:8px;max-width:1240px;margin-inline:auto;padding:10px 20px;overflow-x:auto;scrollbar-width:none}@media (min-width:640px){.lib-bar-row{padding:12px 40px}}.lib-bar-row::-webkit-scrollbar{display:none}.lib-sep{flex-shrink:0;width:1px;height:20px;margin-inline:4px;background:var(--st-line)}.lib-chip{display:inline-flex;flex-shrink:0;align-items:center;gap:7px;height:36px;padding-inline:14px;border-radius:999px;font-size:13.5px;white-space:nowrap;color:color-mix(in oklab,var(--foreground) 82%,transparent);background:color-mix(in oklab,var(--foreground) 6%,transparent);border:1px solid var(--st-line);transition:background .25s,color .25s,border-color .25s,transform .35s var(--st-spring-pop)}.lib-chip:hover{color:var(--foreground);background:color-mix(in oklab,var(--foreground) 11%,transparent)}.lib-chip:active{transform:scale(.96)}.lib-chip[aria-current=page],.lib-chip[aria-pressed=true]{color:var(--background);background:var(--foreground);border-color:var(--foreground)}.lib-chip-n{font-family:var(--font-st-mono),ui-monospace,monospace;font-size:11px;opacity:.55}.lib-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,272px),1fr));grid-auto-flow:dense;gap:16px}@media (min-width:640px){.lib-grid{gap:20px}}@media (min-width:760px){.lib-feature{grid-column:span 2;grid-row:span 2}}@media (min-width:960px){.lib-related{grid-template-columns:repeat(3,minmax(0,1fr));margin-inline:-120px}}.lib-card{--lift:0px;position:relative;display:flex;flex-direction:column;min-width:0;border-radius:22px;background:var(--st-card-bg);color:var(--foreground);border:1px solid var(--st-line);box-shadow:var(--st-shadow);transform:perspective(1100px) translateY(var(--lift)) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg));transition:transform .55s var(--st-spring),box-shadow .45s,border-color .3s}.lib-card:hover{--lift:-4px;border-color:color-mix(in oklab,var(--foreground) 20%,transparent);box-shadow:0 1px 1px rgba(0,0,0,.3),0 30px 60px -24px rgba(0,0,0,.7)}.lib-card:focus-within{border-color:color-mix(in oklab,var(--st-accent) 55%,transparent)}.lib-card:has(.lib-card-link:focus-visible){box-shadow:0 0 0 3px color-mix(in oklab,var(--st-accent) 35%,transparent),var(--st-shadow)}.lib-card-link{outline:none}.lib-card-link:after{content:"";position:absolute;inset:0;z-index:1;border-radius:inherit}.lib-card .st-card-glare{z-index:2}.lib-art{position:relative;display:block;flex-shrink:0;aspect-ratio:16/10;margin:7px 7px 0;overflow:hidden;border-radius:16px;background:radial-gradient(90% 90% at 20% 0,var(--st-accent-soft),transparent 70%),color-mix(in oklab,var(--foreground) 5%,var(--st-card-bg))}.lib-feature .lib-art{aspect-ratio:auto;flex:1;min-height:240px}@media (max-width:759px){.lib-feature .lib-art{aspect-ratio:4/3;flex:none}}.lib-art-pic{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .9s cubic-bezier(.2,.7,.2,1);animation:st-fade .7s ease-out both}.lib-card:hover .lib-art-pic{transform:scale(1.045)}.lib-art-made{position:absolute;inset:0;overflow:hidden;color:var(--foreground);background:radial-gradient(90% 80% at var(--ax,20%) var(--ay,10%),color-mix(in oklab,var(--st-accent) 58%,transparent),transparent 62%),radial-gradient(80% 70% at var(--bx,90%) var(--by,90%),color-mix(in oklab,color-mix(in oklab,var(--st-accent) 45%,#6b5bff) 55%,transparent),transparent 65%),linear-gradient(160deg,color-mix(in oklab,var(--st-card-bg) 80%,var(--st-accent)),var(--st-card-bg))}.lib-art-made:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,color-mix(in oklab,#000 35%,transparent),transparent 60%)}.st-light .lib-art-made:after{background:linear-gradient(0deg,color-mix(in oklab,#fff 30%,transparent),transparent 60%)}.lib-art-mono{position:absolute;inset-inline-end:-.06em;bottom:-.22em;font-size:clamp(7rem,16vw,11rem);line-height:1;font-weight:700;letter-spacing:-.06em;opacity:.16;mix-blend-mode:overlay;user-select:none}.lib-feature .lib-art-mono{font-size:clamp(9rem,22vw,18rem)}.lib-art-glyph{position:absolute;top:14px;inset-inline-start:14px;z-index:1;display:grid;place-items:center;width:34px;height:34px;border-radius:999px;color:var(--foreground);background:color-mix(in oklab,var(--background) 35%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--st-glass-border)}.lib-art-wave{position:absolute;inset-inline:18px;bottom:18px;z-index:1;display:flex;color:color-mix(in oklab,var(--foreground) 85%,transparent)}.lib-art-sheen{position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(105deg,transparent 35%,rgba(255,255,255,.13) 50%,transparent 65%);background-size:260% 100%;animation:lib-sheen 2.2s ease-in-out 30 both}.lib-badge{position:absolute;z-index:2;display:inline-flex;align-items:center;gap:4px;height:22px;padding-inline:8px;border-radius:999px;font-size:10.5px;font-weight:500;color:#fff;background:rgba(0,0,0,.5);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.14)}.lib-badge-time{bottom:10px;inset-inline-end:10px;font-family:var(--font-st-mono),ui-monospace,monospace;font-variant-numeric:tabular-nums}.lib-badge-lock{top:10px;inset-inline-end:10px}.lib-play{position:absolute;inset:0;z-index:1;display:grid;place-items:center;background:linear-gradient(0deg,rgba(0,0,0,.5),transparent 55%)}.lib-play>span{display:grid;place-items:center;width:48px;height:48px;border-radius:999px;color:#fff;background:rgba(255,255,255,.2);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:inset 0 0 0 1px rgba(255,255,255,.4);transition:transform .45s var(--st-spring-pop)}.lib-card:hover .lib-play>span{transform:scale(1.1)}.lib-card-body{display:flex;flex-direction:column;gap:8px;padding:14px 16px}.lib-feature .lib-card-body{gap:10px;padding:18px 20px}.lib-kind{display:flex;min-width:0;align-items:center;gap:6px;font-size:11.5px;line-height:1;color:var(--st-muted)}.lib-card-title{margin:0;font-size:17px;line-height:1.28;font-weight:600;letter-spacing:-.012em;text-wrap:pretty;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.lib-feature .lib-card-title{font-size:clamp(20px,2.2vw,28px);line-height:1.15;letter-spacing:-.024em;-webkit-line-clamp:3}.lib-card-snippet{margin:0;font-size:14px;line-height:1.55;color:color-mix(in oklab,var(--foreground) 66%,transparent);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.lib-card[data-locked] .lib-card-snippet{-webkit-mask-image:linear-gradient(180deg,#000 30%,transparent);mask-image:linear-gradient(180deg,#000 30%,transparent)}.lib-card-foot{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:2px;font-family:var(--font-st-mono),ui-monospace,monospace;font-size:11px;color:var(--st-muted)}.lib-ask-mini{position:relative;z-index:3;display:inline-flex;align-items:center;gap:6px;height:30px;padding-inline:10px 12px;border-radius:999px;font-family:var(--font-st-sans),ui-sans-serif,system-ui,sans-serif;font-size:12.5px;color:color-mix(in oklab,var(--foreground) 80%,transparent);background:color-mix(in oklab,var(--foreground) 6%,transparent);border:1px solid var(--st-line);transition:background .25s,color .25s,border-color .25s,transform .35s var(--st-spring-pop)}.lib-ask-mini:focus-visible,.lib-ask-mini:hover{color:var(--st-on-accent);background:var(--st-accent);border-color:var(--st-accent);transform:scale(1.04)}.lib-in{animation:st-rise .8s var(--st-spring) both;animation-delay:calc(min(var(--i, 0), 10) * 45ms)}.lib-ask-row{grid-column:1/-1;position:relative;display:flex;align-items:center;gap:14px;padding:14px 16px;border-radius:22px;background:radial-gradient(120% 160% at 0 0,var(--st-accent-soft),transparent 60%),var(--st-card-bg);border:1px solid color-mix(in oklab,var(--st-accent) 30%,transparent);box-shadow:var(--st-shadow);transition:transform .45s var(--st-spring-pop)}.lib-ask-row:hover{transform:translateY(-2px)}[dir=rtl] .lib-ask-row{background:radial-gradient(120% 160% at 100% 0,var(--st-accent-soft),transparent 60%),var(--st-card-bg)}.lib-closing{position:relative;overflow:hidden;padding:36px 20px 28px;border-radius:32px;text-align:center;background:radial-gradient(70% 90% at 50% 0,color-mix(in oklab,var(--st-accent) 22%,transparent),transparent 70%),var(--st-card-bg);border:1px solid var(--st-line);box-shadow:inset 0 1px 0 var(--st-glass-hi),0 40px 90px -40px rgba(0,0,0,.7)}@media (min-width:640px){.lib-closing{padding:56px 48px 44px}}.lib-askbar{width:min(100%,600px);margin-inline:auto;padding-block:6px;padding-inline:20px 6px;align-items:center}.lib-askbar input{min-width:0;flex:1;height:44px;border:0;outline:none;background:transparent;font-size:16px;color:var(--foreground)}.lib-askbar input::placeholder{color:var(--st-muted)}.lib-ambient{position:absolute;inset-inline:0;top:0;z-index:-1;height:min(110svh,1000px);overflow:hidden;pointer-events:none;-webkit-mask-image:linear-gradient(180deg,#000 25%,transparent);mask-image:linear-gradient(180deg,#000 25%,transparent)}.lib-ambient-img{position:absolute;inset:-12%;background-size:cover;background-position:50%;filter:blur(70px) saturate(1.5) brightness(.55);opacity:.85;transform:scale(1.1);animation:st-fade 1.2s ease-out both}.st-light .lib-ambient-img{filter:blur(70px) saturate(1.3) brightness(1.1);opacity:.6}.lib-reader{position:relative;width:100%;max-width:760px;margin-inline:auto;padding:96px 20px 140px}@media (min-width:640px){.lib-reader{padding:120px 32px 160px}}.lib-crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:13px;color:var(--st-muted)}.lib-crumbs a{transition:color .2s}.lib-crumbs a:hover{color:var(--foreground)}.lib-read-title{margin:0;font-family:var(--st-display,inherit);font-size:clamp(2.1rem,5.6vw,3.6rem);line-height:1.02;font-weight:600;letter-spacing:-.035em;text-wrap:balance}.lib-media{position:relative;overflow:hidden;border-radius:24px;background:var(--st-photo-ground);border:1px solid var(--st-line);box-shadow:0 50px 110px -40px rgba(0,0,0,.85)}@media (min-width:900px){.lib-media[data-wide]{margin-inline:-64px}}.lib-media-frame{position:relative;display:block;width:100%;aspect-ratio:16/9}.lib-media-frame iframe,.lib-media-frame video{position:absolute;inset:0;width:100%;height:100%;border:0;background:#000}.lib-prose{font-size:18px;line-height:1.75;color:color-mix(in oklab,var(--foreground) 88%,transparent);overflow-wrap:break-word}@media (min-width:640px){.lib-prose{font-size:19px}}.lib-prose ol,.lib-prose p,.lib-prose ul{margin:0 0 1.15em}.lib-prose>:first-child{font-size:1.1em;color:var(--foreground)}.lib-prose ol,.lib-prose ul{padding-inline-start:1.3em}.lib-prose ul{list-style:disc}.lib-prose ol{list-style:decimal}.lib-prose li{margin-bottom:.4em}.lib-prose li::marker{color:var(--st-accent)}.lib-prose strong{font-weight:600;color:var(--foreground)}.lib-prose[data-preview]{-webkit-mask-image:linear-gradient(180deg,#000 35%,transparent);mask-image:linear-gradient(180deg,#000 35%,transparent)}.lib-float{position:fixed;inset-inline:0;bottom:max(14px,env(safe-area-inset-bottom));z-index:40;display:flex;justify-content:center;padding-inline:16px;pointer-events:none}.lib-float>a{pointer-events:auto;display:inline-flex;max-width:100%;align-items:center;gap:10px;height:54px;padding-inline:5px 8px;border-radius:999px;font-size:15px;background:color-mix(in oklab,var(--card) 72%,transparent);-webkit-backdrop-filter:blur(24px) saturate(1.6);backdrop-filter:blur(24px) saturate(1.6);border:1px solid color-mix(in oklab,var(--foreground) 16%,transparent);box-shadow:inset 0 1px 0 var(--st-glass-hi),0 18px 50px -14px rgba(0,0,0,.7);animation:lib-float-in .9s var(--st-spring-pop) .5s both;transition:transform .4s var(--st-spring-pop)}.lib-float>a:hover{transform:translateY(-2px) scale(1.02)}.lib-float-go{display:grid;place-items:center;width:40px;height:40px;border-radius:999px;color:var(--st-on-accent);background:var(--st-accent);box-shadow:0 6px 20px -6px var(--st-accent)}.learn-tabs{display:flex;gap:4px;max-width:1240px;margin-inline:auto;padding:10px 20px 0;overflow-x:auto;scrollbar-width:none}.learn-tabs::-webkit-scrollbar{display:none}@media (min-width:640px){.learn-tabs{padding:12px 40px 0}}.learn-tab{position:relative;display:inline-flex;flex-shrink:0;align-items:center;gap:8px;height:44px;padding-inline:14px;font-size:15px;font-weight:600;letter-spacing:-.01em;color:var(--st-muted);transition:color .25s}.learn-tab:hover,.learn-tab[aria-selected=true]{color:var(--foreground)}.learn-tab:after{content:"";position:absolute;inset-inline:12px;bottom:-1px;height:2px;border-radius:2px;background:var(--st-accent);transform:scaleX(0);transition:transform .45s var(--st-spring)}.learn-tab[aria-selected=true]:after{transform:scaleX(1)}.learn-tabs+.lib-bar-row{padding-top:6px}.learn-guides{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,248px),1fr));gap:16px}@media (min-width:640px){.learn-guides{gap:24px}}.learn-cover{position:relative;display:block;aspect-ratio:3/4;margin:7px 7px 0;overflow:hidden;border-radius:14px;background:radial-gradient(120% 90% at 20% 0,var(--st-accent-soft),transparent 70%),color-mix(in oklab,var(--st-accent) 30%,var(--st-card-bg));box-shadow:inset 0 0 0 1px var(--st-line)}.learn-cover-wide{aspect-ratio:3/2}.learn-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .9s var(--st-spring)}.lib-card:hover .learn-cover img{transform:scale(1.03)}.learn-cover-plain{position:absolute;inset:0;display:flex;align-items:flex-end;padding:20px;font-family:var(--st-display,inherit);font-size:22px;line-height:1.1;font-weight:600;letter-spacing:-.02em;color:var(--foreground)}.learn-cover-spine{position:absolute;inset-block:0;inset-inline-start:0;width:14px;pointer-events:none;background:linear-gradient(90deg,rgba(0,0,0,.28),rgba(255,255,255,.08) 45%,transparent)}[dir=rtl] .learn-cover-spine{transform:scaleX(-1)}.learn-guide-foot{display:flex;align-items:center;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:auto;padding-top:6px}.learn-price{font-size:17px;font-weight:600;letter-spacing:-.01em;font-variant-numeric:tabular-nums}.learn-buy{position:relative;z-index:2;display:inline-flex;align-items:center;gap:6px;height:36px;padding-inline:12px;border-radius:999px;font-size:12.5px;color:var(--st-muted);background:color-mix(in oklab,var(--foreground) 6%,transparent);border:1px solid var(--st-line);white-space:nowrap;cursor:not-allowed}.learn-open{height:36px;padding-inline:16px;font-size:13px}.learn-topics{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr));gap:16px}@media (min-width:640px){.learn-topics{gap:24px}}.topic-dek{margin:0;max-width:40ch;font-size:clamp(1.15rem,2.4vw,1.4rem);line-height:1.4;color:color-mix(in oklab,var(--foreground) 78%,transparent);text-wrap:pretty}.topic-preview{display:flex;align-items:center;gap:8px;width:fit-content;margin-bottom:0;padding:8px 14px;border-radius:999px;font-size:13.5px;background:var(--st-accent-soft);border:1px solid color-mix(in oklab,var(--st-accent) 35%,transparent)}.topic-prose .topic-h{margin:1.9em 0 .55em;font-family:var(--st-display,inherit);font-size:clamp(1.4rem,3vw,1.75rem);line-height:1.15;font-weight:600;letter-spacing:-.02em;color:var(--foreground);text-wrap:balance}.topic-prose em,.topic-quote{font-style:italic}.topic-quote{margin:1.6em 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