:root{--accent-candle-100: 76 62% 90%;--accent-candle-300: 76 66% 62%;--accent-candle-500: 76 59% 51%;--accent-candle-700: 76 56% 28%;--accent-candle-900: 76 45% 14%;--candle-navy: 221 60% 9%}.bk-page{--bk-ink: var(--brand-ink);--bk-accent: var(--brand-core);--bk-on-accent: 0 0% 100%;--bk-wash: var(--brand-core);--bk-art: var(--brand-core);--bk-art-ink: var(--brand-ink);--bk-art-on: 0 0% 100%;--cdl-up: var(--bullish-500);--cdl-up-line: var(--bullish-700);--cdl-down: var(--bearish-500);--cdl-down-line: var(--bearish-700);--cdl-doji: var(--foreground);--bk-glass: hsl(var(--card) / .72);--bk-glass-strong: hsl(var(--card) / .86);--bk-glass-edge: hsl(var(--foreground) / .1);--bk-glass-line: hsl(var(--foreground) / .06);--bk-glass-blur: blur(20px) saturate(140%);--bk-glass-depth: 0 1px 2px rgb(60 40 20 / .04), 0 14px 34px -10px rgb(60 40 20 / .12), inset 0 1px 0 hsl(0 0% 100% / .7);--bk-inner: hsl(var(--foreground) / .035);overflow-x:clip;position:relative;isolation:isolate}.dark .bk-page{--bk-on-accent: 0 0% 5%;--bk-art-on: 0 0% 5%;--cdl-up-line: var(--bullish-300);--cdl-down-line: var(--bearish-300);--bk-glass-depth: 0 1px 2px rgb(0 0 0 / .35), 0 18px 44px -12px rgb(0 0 0 / .55), inset 0 1px 0 hsl(0 0% 100% / .06);--bk-inner: hsl(var(--foreground) / .045)}.bk-glass,.bk-card{border:1px solid var(--bk-glass-edge);background:var(--bk-glass);-webkit-backdrop-filter:var(--bk-glass-blur);backdrop-filter:var(--bk-glass-blur);box-shadow:var(--bk-glass-depth)}@media (prefers-reduced-transparency: reduce){.bk-page{--bk-glass: hsl(var(--card));--bk-glass-strong: hsl(var(--card))}.bk-glass,.bk-card,.bk-nav-track{-webkit-backdrop-filter:none!important;backdrop-filter:none!important}}.bk-theme-candle{--cdl-up: var(--accent-candle-500);--cdl-up-line: var(--accent-candle-700);--bk-art: var(--accent-candle-500);--bk-art-ink: var(--accent-candle-700);--bk-art-on: var(--candle-navy)}.dark .bk-theme-candle{--cdl-up-line: var(--accent-candle-300);--cdl-down-line: var(--bearish-300);--bk-art-ink: var(--accent-candle-300);--bk-art-on: var(--candle-navy)}.bk-theme-chart{--cdl-up: var(--bullish-500);--cdl-up-line: var(--bullish-700);--bk-art: var(--accent-book-300);--bk-art-ink: var(--accent-book-700);--bk-art-on: 0 0% 5%}.dark .bk-theme-chart{--cdl-up-line: var(--bullish-300);--bk-art-ink: var(--accent-book-300)}.bk-hero{position:relative;isolation:isolate}.bk-hero>.lb-mark,.bk-close>.lb-mark{z-index:-1}.bk-close{position:relative;isolation:isolate;overflow:hidden;margin-top:clamp(72px,9vw,128px);padding:clamp(40px,5vw,72px) 24px clamp(110px,12vw,160px)}.bk-close>.site-closing-cta{position:relative;z-index:1}.bk-close .site-closing-cta__title em{display:block;font-family:var(--font-serif-accent);font-style:italic;font-weight:400;color:hsl(var(--brand-ink))}@media (max-width: 1023px){.bk-close{padding-bottom:80px}}.bk-wrap{box-sizing:border-box;width:100%;max-width:1240px;margin:0 auto;padding-inline:clamp(16px,4vw,40px)}.bk-top{padding-top:24px}@media (min-width: 1024px){.bk-top{padding-top:112px}}.bk-page{padding-bottom:104px}@media (min-width: 1024px){.bk-page{padding-bottom:72px}}.bk-sec{padding-top:clamp(64px,8vw,112px);scroll-margin-top:96px}@media (min-width: 1024px){.bk-sec{scroll-margin-top:168px}}.bk-anim [data-io]{opacity:0;transform:translateY(22px);filter:blur(4px)}.bk-anim .bk-io-in{opacity:1;transform:none;filter:none;transition:opacity var(--dur-hero, .9s) var(--ease-g4-signature),transform var(--dur-hero, .9s) var(--ease-g4-signature),filter var(--dur-hero, .9s) var(--ease-g4-signature);transition-delay:var(--iod, 0s)}.bk-anim .bk-io-done{opacity:1;transform:none;filter:none}@media (prefers-reduced-motion: reduce){.bk-anim [data-io]{opacity:1;transform:none;filter:none;transition:none}}.bk-h1{margin:20px 0 0;font:var(--site-hero-type, 800 clamp(42px, 5.4vw, 86px)/.98 var(--font-display));letter-spacing:-.046em;text-wrap:balance;color:hsl(var(--foreground))}.bk-h2{margin:16px 0 0;max-width:22ch;font:800 clamp(2.125rem,4.6vw,3.6rem)/1.02 var(--font-display);letter-spacing:-.045em;text-wrap:balance;color:hsl(var(--foreground))}.bk-h1 em,.bk-h2 em,.bk-h3 em{font-family:var(--font-serif-accent);font-style:italic;font-weight:400;letter-spacing:-.015em;color:hsl(var(--bk-ink))}.bk-h1 em,.bk-h2 em{font-size:.96em;display:block}.bk-buybox .bk-h2{max-width:none;font-size:clamp(2rem,3.2vw,2.85rem)}.bk-h3{margin:0;font:800 clamp(1.25rem,1.8vw,1.5rem)/1.2 var(--font-display);letter-spacing:-.025em;text-wrap:balance;color:hsl(var(--foreground))}.bk-lead{margin:18px 0 0;max-width:58ch;font:450 clamp(17px,1.3vw,20px)/1.6 var(--font-body);letter-spacing:-.008em;color:hsl(var(--foreground) / .78);text-wrap:pretty}.bk-lead strong{font-weight:650;color:hsl(var(--foreground))}.bk-body{margin:0;font:450 16px/1.65 var(--font-body);color:hsl(var(--foreground) / .78);text-wrap:pretty}.bk-small{margin:0;font:450 14px/1.6 var(--font-body);color:hsl(var(--foreground) / .72);text-wrap:pretty}.bk-label{margin:0;font:600 12px/1.3 var(--font-body);letter-spacing:.08em;text-transform:uppercase;color:hsl(var(--foreground) / .7)}.bk-label--accent{color:hsl(var(--bk-ink))}.bk-num{font-family:var(--font-numeric);font-variant-numeric:tabular-nums}.bk-head-row{display:grid;gap:18px;align-items:end}@media (min-width: 960px){.bk-head-row{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px}.bk-head-row .bk-lead{margin-top:0;padding-bottom:.35em}}.bk-statement-wrap{padding-top:clamp(72px,10vw,152px)}.bk-statement{max-width:21ch;margin:0 auto;text-align:center;font:800 clamp(2rem,5vw,4.25rem)/1.06 var(--font-display);letter-spacing:-.045em;text-wrap:balance;color:hsl(var(--foreground))}.bk-statement em{font-family:var(--font-serif-accent);font-style:italic;font-weight:400;font-size:.98em;letter-spacing:-.015em;color:hsl(var(--brand-ink))}@media (min-width: 1080px){.bk-statement{max-width:24ch}}.bk-crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:4px;margin:0;padding:0;list-style:none;font:500 13.5px/1.4 var(--font-body);color:hsl(var(--foreground) / .7)}.bk-crumbs li{display:inline-flex;align-items:center;gap:4px}.bk-crumbs a{display:inline-flex;align-items:center;min-height:44px;color:hsl(var(--foreground) / .7);text-decoration:none}.bk-crumbs a:hover{color:hsl(var(--foreground));text-decoration:underline;text-underline-offset:4px}.bk-crumbs svg{width:14px;height:14px;opacity:.6}.bk-crumbs [aria-current]{color:hsl(var(--foreground))}.bk-card{box-sizing:border-box;min-width:0;border-radius:var(--radius-card)}.bk-pad{padding:clamp(20px,2.4vw,32px)}.bk-inner{border-radius:16px;background:var(--bk-inner)}.bk-lift{transition:transform var(--dur-hover) var(--ease-g2-standard),border-color var(--dur-hover) var(--ease-g2-standard)}@media (hover: hover){.bk-page .bk-lift:hover{transform:translateY(-3px);border-color:hsl(var(--bk-ink) / .45)}}@media (prefers-reduced-motion: reduce){.bk-page .bk-lift,.bk-page .bk-lift:hover{transform:none}}.bk-icon-tile{display:inline-grid;place-items:center;flex-shrink:0;width:44px;height:44px;border-radius:var(--radius-capsule);background:hsl(var(--bk-wash) / .14);border:1px solid hsl(var(--bk-ink) / .28);color:hsl(var(--bk-ink))}.bk-icon-tile svg{width:20px;height:20px}.bk-n{align-self:flex-start;justify-self:start;width:-moz-fit-content;width:fit-content;display:inline-grid;place-items:center;min-width:34px;height:28px;padding-inline:9px;border-radius:var(--radius-capsule);background:hsl(var(--bk-wash) / .14);font:700 12px/1 var(--font-numeric);font-variant-numeric:tabular-nums;color:hsl(var(--bk-ink))}.bk-chips{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}.bk-chip{display:inline-flex;align-items:center;gap:6px;min-height:28px;padding:0 12px;border-radius:var(--radius-capsule);background:hsl(var(--foreground) / .06);font:600 12.5px/1 var(--font-body);color:hsl(var(--foreground) / .8);white-space:nowrap}.bk-chip--bull{background:hsl(var(--bullish-500) / .13);color:hsl(var(--bullish-700))}.bk-chip--bear{background:hsl(var(--bearish-500) / .12);color:hsl(var(--bearish-700))}.dark .bk-chip--bull{background:hsl(var(--bullish-300) / .14);color:hsl(var(--bullish-300))}.dark .bk-chip--bear{background:hsl(var(--bearish-300) / .14);color:hsl(var(--bearish-300))}a.bk-chip{min-height:44px;text-decoration:none;transition:background-color var(--dur-hover) var(--ease-g2-standard)}a.bk-chip:hover{background:hsl(var(--foreground) / .1)}.bk-link{display:inline-flex;align-items:center;gap:6px;min-height:44px;font:600 14.5px/1.3 var(--font-body);color:hsl(var(--bk-ink));text-decoration:none}.bk-link:hover{text-decoration:underline;text-underline-offset:5px}.bk-link svg{width:16px;height:16px;flex-shrink:0;transition:transform var(--dur-hover) var(--ease-g2-standard)}@media (hover: hover) and (prefers-reduced-motion: no-preference){.bk-link:hover svg{transform:translate(2px)}}.bk-page :is(a,button,summary):focus-visible{outline:2px solid hsl(var(--ring));outline-offset:3px;border-radius:10px}.bk-hero-grid{display:grid;gap:40px;margin-top:18px;align-items:center}.bk-hero-art{display:flex;justify-content:center;order:-1}@media (min-width: 960px){.bk-hero-grid{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(40px,6vw,96px);margin-top:28px}.bk-hero-art{order:0}}@media (min-width: 960px){.bk-hero-grid .bk-h1{font-size:clamp(40px,4.2vw,60px)}}.bk-hero-sub{margin:14px 0 0;font:400 clamp(19px,2vw,27px)/1.3 var(--font-serif-accent);font-style:italic;letter-spacing:-.01em;color:hsl(var(--foreground) / .84);text-wrap:balance}.bk-byline{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;margin:20px 0 0;font:500 14px/1.5 var(--font-body);color:hsl(var(--foreground) / .74)}.bk-byline a{color:hsl(var(--foreground));font-weight:600;text-decoration:underline;text-decoration-color:hsl(var(--foreground) / .3);text-underline-offset:4px}.bk-byline a:hover{text-decoration-color:currentColor}.bk-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));margin:28px 0 0;overflow:hidden;border-radius:20px}.bk-facts>div{display:flex;flex-direction:column-reverse;gap:6px;padding:16px 18px;box-shadow:inset -1px 0 0 var(--bk-glass-line),inset 0 -1px 0 var(--bk-glass-line)}.bk-facts dd{margin:0;font:700 clamp(24px,2.4vw,32px)/1 var(--font-numeric);font-variant-numeric:tabular-nums;letter-spacing:-.03em;color:hsl(var(--foreground))}.bk-facts dt{font:500 13px/1.3 var(--font-body);color:hsl(var(--foreground) / .7)}@media (min-width: 560px){.bk-facts{grid-template-columns:repeat(4,minmax(0,1fr))}}.bk-facts--3{grid-template-columns:repeat(3,minmax(0,1fr))}@media (min-width: 560px){.bk-facts--3{grid-template-columns:repeat(3,minmax(0,1fr))}}.bk-buy{margin-top:28px}.bk-buy .ab-book-retailers{display:flex;flex-wrap:wrap;gap:10px}.bk-note{margin:14px 0 0;font:450 13.5px/1.55 var(--font-body);color:hsl(var(--foreground) / .7)}.bk-nav{position:sticky;top:8px;z-index:30;margin:36px auto 0;width:-moz-fit-content;width:fit-content;max-width:calc(100% - 32px)}.bk-nav-track{display:flex;gap:2px;margin:0;padding:5px;list-style:none;overflow-x:auto;scrollbar-width:none;border-radius:var(--radius-capsule);border:1px solid var(--bk-glass-edge);background:var(--bk-glass-strong);box-shadow:0 0 0 .5px var(--bk-glass-line),var(--bk-glass-depth);-webkit-backdrop-filter:var(--bk-glass-blur);backdrop-filter:var(--bk-glass-blur)}.bk-nav-track::-webkit-scrollbar{display:none}.bk-nav a{display:inline-flex;align-items:center;gap:7px;min-height:40px;padding:0 14px;white-space:nowrap;text-decoration:none;border-radius:var(--radius-capsule);font:600 13px/1 var(--font-body);color:hsl(var(--foreground) / .74);transition:background-color var(--dur-hover) var(--ease-g2-standard),color var(--dur-hover) var(--ease-g2-standard)}.bk-nav a:hover{background:hsl(var(--foreground) / .06);color:hsl(var(--foreground))}.bk-nav a[aria-current=true]{background:var(--control-selected-fill, hsl(var(--foreground)));color:var(--control-selected-ink, hsl(var(--background)))}.bk-nav a .bk-num{font-size:11px;opacity:.86}.bk-nav-buy{background:hsl(var(--foreground));color:hsl(var(--background))!important}.bk-nav-buy:hover{background:hsl(var(--foreground) / .88)!important}@media (min-width: 1024px){.bk-nav{top:92px}}.bk-grid{display:grid;gap:clamp(14px,1.6vw,20px);margin-top:clamp(24px,3vw,40px)}@media (min-width: 680px){.bk-grid--2,.bk-grid--3,.bk-grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (min-width: 1080px){.bk-grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}.bk-grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}}.bk-feature{display:flex;flex-direction:column;gap:14px}.bk-feature ul{display:grid;gap:8px;margin:auto 0 0;padding:16px 0 0;list-style:none;border-top:1px solid hsl(var(--foreground) / .1)}.bk-feature li{display:flex;gap:10px;font:500 14.5px/1.45 var(--font-body);color:hsl(var(--foreground) / .82)}.bk-feature li svg{width:16px;height:16px;margin-top:2px;flex-shrink:0;color:hsl(var(--bk-ink))}.bk-audience{display:grid;margin-top:20px;overflow:hidden;border-radius:var(--radius-card)}.bk-audience>div{padding:20px 22px;box-shadow:inset -1px 0 0 var(--bk-glass-line),inset 0 -1px 0 var(--bk-glass-line)}.bk-audience h3{margin:0;font:800 16px/1.3 var(--font-display);letter-spacing:-.015em;color:hsl(var(--foreground))}.bk-audience p{margin:6px 0 0;font:450 14.5px/1.55 var(--font-body);color:hsl(var(--foreground) / .74)}@media (min-width: 680px){.bk-audience{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (min-width: 1080px){.bk-audience{grid-template-columns:repeat(4,minmax(0,1fr))}}@media (min-width: 1080px){.bk-audience--3{grid-template-columns:repeat(3,minmax(0,1fr))}}.bk-flow{display:grid;gap:14px;margin-top:clamp(24px,3vw,40px);counter-reset:none}@media (min-width: 680px){.bk-flow{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (min-width: 1180px){.bk-flow{grid-template-columns:repeat(4,minmax(0,1fr))}}.bk-step{display:flex;flex-direction:column;gap:14px}.bk-step-pair{display:grid;gap:10px;margin-top:auto}@supports (grid-template-rows: subgrid){.bk-step{display:grid;grid-row:span 4;grid-template-rows:subgrid;gap:14px}.bk-step-pair{display:contents}.bk-step-pair>div+div{margin-top:-4px}}.bk-step-pair>div{padding:14px 16px;border-radius:14px}.bk-step-wrong{background:hsl(var(--bearish-500) / .07)}.bk-step-fix{background:hsl(var(--bullish-500) / .08)}.bk-step-pair .bk-label{font-size:11px}.bk-step-wrong .bk-label{color:hsl(var(--bearish-700))}.bk-step-fix .bk-label{color:hsl(var(--bullish-700))}.dark .bk-step-wrong .bk-label{color:hsl(var(--bearish-300))}.dark .bk-step-fix .bk-label{color:hsl(var(--bullish-300))}.bk-step-pair p:last-child{margin:6px 0 0;font:450 14.5px/1.55 var(--font-body);color:hsl(var(--foreground) / .82)}.bk-parts{display:grid;gap:clamp(14px,1.6vw,20px);margin-top:clamp(24px,3vw,40px)}@media (min-width: 1080px){.bk-parts{grid-template-columns:repeat(3,minmax(0,1fr));align-items:start}}.bk-part-head{display:flex;flex-direction:column;gap:6px;padding-bottom:16px;border-bottom:1px solid hsl(var(--foreground) / .1)}.bk-chapters{margin:0;padding:0;list-style:none}.bk-chapter{display:grid;grid-template-columns:40px minmax(0,1fr);gap:12px;padding:16px 0;border-bottom:1px solid hsl(var(--foreground) / .07)}.bk-chapter:last-child{border-bottom:0;padding-bottom:0}.bk-chapter-n{padding-top:2px;font:700 13px/1.2 var(--font-numeric);font-variant-numeric:tabular-nums;color:hsl(var(--bk-ink))}.bk-chapter h3{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0;font:800 16.5px/1.3 var(--font-display);letter-spacing:-.015em;color:hsl(var(--foreground))}.bk-chapter p{margin:6px 0 0;font:450 14.5px/1.55 var(--font-body);color:hsl(var(--foreground) / .74)}.bk-chapter .bk-chip{min-height:22px;padding:0 9px;font-size:11.5px}.bk-split{display:grid;gap:clamp(24px,4vw,64px);align-items:center;margin-top:clamp(24px,3vw,40px)}@media (min-width: 960px){.bk-split{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}.bk-media{overflow:hidden;border-radius:var(--radius-card);border:1px solid var(--bk-glass-edge);background:#f3f1ed;box-shadow:0 0 0 .5px var(--bk-glass-line),var(--bk-glass-depth)}.bk-media img{display:block;width:100%;height:auto}.bk-lab{display:grid;gap:clamp(14px,1.6vw,20px);margin-top:clamp(24px,3vw,40px)}@media (min-width: 960px){.bk-lab{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr)}}.bk-lab-stage{display:flex;flex-direction:column;gap:16px}.bk-lab-svg{display:block;width:100%;max-width:360px;height:auto;margin:0 auto;touch-action:none;-moz-user-select:none;user-select:none;-webkit-user-select:none}.bk-lab-presets{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px}.bk-lab-presets button{display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:0 14px;cursor:pointer;border-radius:var(--radius-capsule);border:1px solid var(--control-edge, hsl(var(--foreground) / .12));background:var(--control-fill, hsl(var(--foreground) / .04));font:600 13px/1 var(--font-body);color:hsl(var(--foreground) / .86);transition:background-color var(--dur-hover) var(--ease-g2-standard)}.bk-lab-presets button:hover{background:var(--control-hover, hsl(var(--foreground) / .08))}.bk-lab-presets button[aria-pressed=true]{background:var(--control-selected-fill);color:var(--control-selected-ink);border-color:transparent}.bk-lab-handle circle.bk-lab-dot{fill:hsl(var(--card));stroke:hsl(var(--foreground) / .85);stroke-width:2}.bk-lab-handle circle.bk-lab-core{fill:hsl(var(--foreground) / 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