@font-face{font-family:Forum;src:url(/static/fonts/Forum-Regular.3280d653.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:EB Garamond;src:url(/static/fonts/EBGaramond-Regular.d2d7d2fc.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}@font-face{font-family:EB Garamond;src:url(/static/fonts/EBGaramond-Italic.c63238f3.woff2) format("woff2");font-weight:400;font-style:italic;font-display:swap}@font-face{font-family:EB Garamond;src:url(/static/fonts/EBGaramond-Medium.7cb69a0f.woff2) format("woff2");font-weight:500;font-style:normal;font-display:swap}@font-face{font-family:EB Garamond;src:url(/static/fonts/EBGaramond-MediumItalic.e21e4868.woff2) format("woff2");font-weight:500;font-style:italic;font-display:swap}@font-face{font-family:EB Garamond;src:url(/static/fonts/EBGaramond-SemiBold.e9ff71da.woff2) format("woff2");font-weight:600;font-style:normal;font-display:swap}@font-face{font-family:PT Mono;src:url(/static/fonts/PTMono-Regular.a2f2c0a7.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}:root{--paper: #ebe5d8;--paper-raised: #f4f0e7;--paper-sunk: #e0d9c9;--ink: #1b1713;--ink-soft: #3f3830;--ink-muted: #5f5648;--rule: var(--ink);--line: #d3c9b6;--line-strong: #7a6f5d;--copper: #975b2c;--copper-ink: #7a4520;--copper-soft: #e5d2b9;--on-copper: #f8f3ea;--cta: #975b2c;--on-cta: #f8f3ea;--forest: #232f17;--on-forest: #e3d5b3;--cream: #e3d5b3;--cover-paper: #e4ddcd;--cover-ink: #1b1713;--cover-copper: #975b2c;--ok: #2d5650;--error: #a0331c;--focus: var(--copper-ink);--shadow-book: 0 2px 3px #1b171329, 0 30px 60px -12px #1b171366, 0 18px 36px -18px #4a2a1259;--shadow-float: 0 1px 0 #1b17131a, 0 16px 40px -8px #1b171340;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--space-7: 48px;--space-8: 64px;--space-9: 96px;--space-10: 112px;--radius-none: 0;--radius-sm: 2px;--radius-md: 28px;--radius-full: 9999px;--container: 1280px;--gutter: clamp(20px, 4vw, 48px);--section: clamp(72px, 8.5vw, 128px);--gap: clamp(28px, 4.4vw, 72px);--measure: 36em;--header-height: 88px;--dur-quick: .16s;--dur-move: .42s;--dur-surface: 1.1s;--ease-river: cubic-bezier(.22, 1, .36, 1);--ease-type: cubic-bezier(.5, 0, .1, 1.25);--fs-hero: clamp(44px, 6.6vw, 100px);--fs-1: clamp(38px, 5vw, 72px);--fs-2: clamp(32px, 4.2vw, 60px);--fs-3: clamp(24px, 2.3vw, 32px);--fs-4: clamp(15px, 1.2vw, 17px);--fs-lead: clamp(19px, 1.6vw, 23px);--fs-body: clamp(18px, 1.35vw, 20px);--fs-small: clamp(15px, 1.15vw, 17px);--font-display: Forum, "Cormorant SC", Georgia, serif;--font-text: "EB Garamond", Garamond, "Times New Roman", serif;--font-mono: "PT Mono", "Courier New", monospace}@media(prefers-color-scheme:dark){:root:not([data-theme=light]):not([data-theme=paper]){--paper: #232f17;--paper-raised: #2c3a1f;--paper-sunk: #1a2311;--ink: #e3d5b3;--ink-soft: #cfc3a3;--ink-muted: #aaa086;--rule: var(--ink);--line: #3e4c2a;--line-strong: #7d8a63;--copper: #dba36b;--copper-ink: #e4b07b;--copper-soft: #4a3a22;--on-copper: #1b1713;--cta: #e3d5b3;--on-cta: #232f17;--forest: #121a0b;--on-forest: #e3d5b3;--cream: #e3d5b3;--cover-paper: #e4ddcd;--cover-ink: #1b1713;--cover-copper: #975b2c;--ok: #8cc7b4;--error: #f08a6c;--focus: var(--copper-ink);--shadow-book: 0 2px 3px #00000066, 0 30px 60px -12px #000000b3;--shadow-float: 0 1px 0 #00000080, 0 16px 40px -8px #000000b3;color-scheme:dark}}:root[data-theme=dark]{--paper: #232f17;--paper-raised: #2c3a1f;--paper-sunk: #1a2311;--ink: #e3d5b3;--ink-soft: #cfc3a3;--ink-muted: #aaa086;--rule: var(--ink);--line: #3e4c2a;--line-strong: #7d8a63;--copper: #dba36b;--copper-ink: #e4b07b;--copper-soft: #4a3a22;--on-copper: #1b1713;--cta: #e3d5b3;--on-cta: #232f17;--forest: #121a0b;--on-forest: #e3d5b3;--cream: #e3d5b3;--cover-paper: #e4ddcd;--cover-ink: #1b1713;--cover-copper: #975b2c;--ok: #8cc7b4;--error: #f08a6c;--focus: var(--copper-ink);--shadow-book: 0 2px 3px #00000066, 0 30px 60px -12px #000000b3;--shadow-float: 0 1px 0 #00000080, 0 16px 40px -8px #000000b3;color-scheme:dark}[data-theme=night]{--paper: #232f17;--paper-raised: #2c3a1f;--paper-sunk: #1a2311;--ink: #e3d5b3;--ink-soft: #cfc3a3;--ink-muted: #aaa086;--rule: var(--ink);--line: #3e4c2a;--line-strong: #7d8a63;--copper: #dba36b;--copper-ink: #e4b07b;--copper-soft: #4a3a22;--on-copper: #1b1713;--cta: #e3d5b3;--on-cta: #232f17;--forest: #121a0b;--on-forest: #e3d5b3;--cream: #e3d5b3;--cover-paper: #e4ddcd;--cover-ink: #1b1713;--cover-copper: #975b2c;--ok: #8cc7b4;--error: #f08a6c;--focus: var(--copper-ink);--shadow-book: 0 2px 3px #00000066, 0 30px 60px -12px #000000b3;--shadow-float: 0 1px 0 #00000080, 0 16px 40px -8px #000000b3;color-scheme:dark}[data-theme=paper]{--paper: #ebe5d8;--paper-raised: #f4f0e7;--paper-sunk: #e0d9c9;--ink: #1b1713;--ink-soft: #3f3830;--ink-muted: #5f5648;--rule: var(--ink);--line: #d3c9b6;--line-strong: #7a6f5d;--copper: #975b2c;--copper-ink: #7a4520;--copper-soft: #e5d2b9;--on-copper: #f8f3ea;--cta: #975b2c;--on-cta: #f8f3ea;--forest: #232f17;--on-forest: #e3d5b3;--cream: #e3d5b3;--cover-paper: #e4ddcd;--cover-ink: #1b1713;--cover-copper: #975b2c;--ok: #2d5650;--error: #a0331c;--focus: var(--copper-ink);--shadow-book: 0 2px 3px #1b171329, 0 30px 60px -12px #1b171366, 0 18px 36px -18px #4a2a1259;--shadow-float: 0 1px 0 #1b17131a, 0 16px 40px -8px #1b171340;color-scheme:light}@media(prefers-color-scheme:dark){:root:not([data-theme=light]):not([data-theme=paper]) .rk-island{--paper: #1a2311;--paper-raised: #232f17;--paper-sunk: #121a0b}}:root[data-theme=dark] .rk-island,:root[data-theme=night] .rk-island{--paper: #1a2311;--paper-raised: #232f17;--paper-sunk: #121a0b}body{margin:0;background-color:var(--paper);color:var(--ink);font:400 var(--fs-body, 20px)/1.55 var(--font-text);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-kerning:normal}.rk-paper{background-color:var(--paper);color:var(--ink);background-image:linear-gradient(90deg,color-mix(in srgb,var(--ink) 3.5%,transparent) 1px,transparent 1px),linear-gradient(color-mix(in srgb,var(--ink) 3%,transparent) 1px,transparent 1px);background-size:3px 3px}.rk-island{background-color:var(--paper);color:var(--ink)}.rk-caps{font-family:var(--font-display);font-weight:400;text-transform:uppercase;letter-spacing:.28em;font-size:13px;line-height:20px}.rk-label{font-family:var(--font-mono);font-size:12px;line-height:16px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-muted)}.rk-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px 14px}@media(max-width:560px){.rk-actions>.rk-btn{flex:1 1 100%}}.rk-code{font-family:var(--font-mono);font-size:15px;line-height:20px;letter-spacing:.04em}.rk-rule{display:block;border:0;border-top:1px solid var(--rule);margin:0}.rk-sr{position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}:where(a,button,input,select,textarea,summary,[tabindex]):focus-visible{outline:2px solid var(--focus);outline-offset:3px}.rk-sample{display:inline-block;font-family:var(--font-mono);font-size:10px;line-height:14px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-muted);border:1px solid var(--line-strong);padding:0 5px;vertical-align:middle}rk-logo{display:inline-block;line-height:0;color:inherit;perspective:700px;-webkit-tap-highlight-color:transparent}rk-logo .rk-logo__svg{height:100%;width:auto;max-width:100%;display:block;overflow:visible;transform-origin:50% var(--waterline, 52%)}rk-logo path,rk-logo rect{fill:currentColor}rk-logo .rk-logo__row,rk-logo .rk-logo__glyph,rk-logo .rk-logo__letter,rk-logo .rk-logo__waterline{transform-box:fill-box}rk-logo .rk-logo__row{transform-origin:50% 0}rk-logo .rk-logo__glyph{transform-origin:50% 100%}rk-logo .rk-logo__letter{transform-origin:50% 100%}rk-logo .rk-logo__waterline{opacity:0;transform-origin:0 50%}rk-logo[motion~=cycle],rk-logo[motion~=ripple]{cursor:pointer}rk-logo[data-state=intro]:not(.is-playing) :is(.rk-logo__row,.rk-logo__glyph,.rk-logo__letter){opacity:0}rk-logo.is-playing .rk-logo__glyph{animation:rk-glyph-set .9s var(--ease-type, cubic-bezier(.5,0,.1,1.25)) both}rk-logo.is-playing .rk-logo__waterline{animation:rk-waterline 1.5s var(--ease-river, cubic-bezier(.22,1,.36,1)) .35s both}rk-logo.is-playing .rk-logo__row{animation:rk-row-surface var(--dur-surface, 1.1s) var(--ease-river, cubic-bezier(.22,1,.36,1)) both;animation-delay:calc(.55s + var(--i) * 95ms)}rk-logo.is-playing .rk-logo__letter{animation:rk-letter-in .7s var(--ease-river, cubic-bezier(.22,1,.36,1)) both;animation-delay:calc(.8s + var(--i) * 45ms)}@keyframes rk-glyph-set{0%{opacity:0;transform:translateY(-46px)}55%{opacity:1;transform:translateY(5px)}78%{transform:translateY(-1.5px)}to{opacity:1;transform:none}}@keyframes rk-waterline{0%{opacity:1;transform:scaleX(0)}45%{opacity:1;transform:scaleX(1)}to{opacity:0;transform:scaleX(1)}}@keyframes rk-row-surface{0%{opacity:0;transform:translate(calc(var(--dir) * 24px)) scaleY(.04)}28%{opacity:1;transform:translate(calc(var(--dir) * -9px)) scaleY(1.08)}50%{transform:translate(calc(var(--dir) * 4.5px)) scaleY(.97)}72%{transform:translate(calc(var(--dir) * -1.8px)) scaleY(1)}to{opacity:1;transform:none}}@keyframes rk-letter-in{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}rk-logo[data-state=idle] .rk-logo__row{animation:rk-sway 4.2s ease-in-out infinite alternate;animation-delay:calc(var(--i) * -.62s)}@keyframes rk-sway{0%{transform:translate(-1.8px)}to{transform:translate(1.8px)}}rk-logo.is-rippling .rk-logo__row{animation:rk-ripple .95s var(--ease-river, cubic-bezier(.22,1,.36,1)) both;animation-delay:calc(var(--i) * 60ms)}@keyframes rk-ripple{0%{transform:none}22%{transform:translate(calc(var(--dir) * 8px))}46%{transform:translate(calc(var(--dir) * -4px))}70%{transform:translate(calc(var(--dir) * 1.6px))}to{transform:none}}rk-logo.is-waving .rk-logo__letter{animation:rk-letter-wave .9s var(--ease-river, cubic-bezier(.22,1,.36,1)) both;animation-delay:calc(var(--i) * 40ms)}@keyframes rk-letter-wave{0%{transform:none}30%{transform:translateY(-7px)}60%{transform:translateY(2px)}to{transform:none}}rk-logo[data-state=flow] .rk-logo__row{animation:none}rk-logo[data-state=loader] .rk-logo__row{animation:rk-flowing 1.3s ease-in-out infinite alternate;animation-delay:calc(var(--i) * -.21s)}@keyframes rk-flowing{0%{transform:translate(-10px)}to{transform:translate(10px)}}rk-logo.is-cycling .rk-logo__svg{animation:rk-cycle 1.8s var(--ease-river, cubic-bezier(.22,1,.36,1))}@keyframes rk-cycle{0%{transform:rotateX(0)}48%,56%{transform:rotateX(180deg)}to{transform:rotateX(360deg)}}rk-logo[drained] .rk-logo__row{animation:none!important;transform:scaleY(0);opacity:0;transition:transform .45s var(--ease-river, cubic-bezier(.22,1,.36,1)),opacity .3s;transition-delay:calc((5 - var(--i)) * 35ms)}rk-logo:not([drained]) .rk-logo__row{transition:transform .6s var(--ease-river, cubic-bezier(.22,1,.36,1)),opacity .4s;transition-delay:calc(var(--i) * 50ms)}.rk-btn{--rk-h: 52px;--rk-fill: var(--ink);--rk-on-fill: var(--paper);position:relative;isolation:isolate;overflow:hidden;display:inline-flex;align-items:center;justify-content:center;gap:14px;height:var(--rk-h);padding:0 28px;box-sizing:border-box;border:1px solid var(--rule);border-radius:0;background:transparent;color:var(--ink);font:400 13px/1 var(--font-display);letter-spacing:.24em;text-transform:uppercase;text-decoration:none;white-space:nowrap;cursor:pointer;transition:color var(--dur-quick, .16s) ease .08s,border-color var(--dur-quick, .16s) ease}.rk-btn:before{content:"";position:absolute;z-index:-1;left:-4px;right:-4px;bottom:0;height:calc(100% + 14px);background:var(--rk-fill);transform:translateY(101%);transition:transform .62s var(--ease-river, cubic-bezier(.22,1,.36,1));-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='48' height='12' viewBox='0 0 48 12'%3E%3Cpath d='M0 6C8 0 16 0 24 6s16 6 24 0v6H0z'/%3E%3C/svg%3E") 0 0/48px 12px repeat-x,linear-gradient(#000 0 0) 0 11px/100% 100% no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='48' height='12' viewBox='0 0 48 12'%3E%3Cpath d='M0 6C8 0 16 0 24 6s16 6 24 0v6H0z'/%3E%3C/svg%3E") 0 0/48px 12px repeat-x,linear-gradient(#000 0 0) 0 11px/100% 100% no-repeat;animation:rk-tide 1.5s linear infinite paused}.rk-btn:hover:before,.rk-btn:focus-visible:before,.rk-btn.is-hover:before{transform:translateY(0);animation-play-state:running}.rk-btn:hover,.rk-btn:focus-visible,.rk-btn.is-hover{color:var(--rk-on-fill)}.rk-btn:active{transform:translateY(1px)}@keyframes rk-tide{to{-webkit-mask-position:48px 0,0 11px;mask-position:48px 0,0 11px}}.rk-btn--primary{background:var(--ink);color:var(--paper);border-color:var(--ink);--rk-fill: var(--copper);--rk-on-fill: var(--on-copper)}.rk-btn--accent{background:var(--cta);color:var(--on-cta);border-color:var(--cta);--rk-fill: var(--copper-ink);--rk-on-fill: var(--on-copper)}.rk-btn--quiet{border-color:transparent;padding:0 4px}.rk-btn--quiet:before{display:none}.rk-btn--quiet:hover{color:var(--copper-ink)}.rk-btn--s{--rk-h: 40px;padding:0 18px;font-size:12px;letter-spacing:.22em}.rk-btn--l{--rk-h: 60px;padding:0 36px;font-size:14px}.rk-btn--block{display:flex;width:100%}.rk-btn[disabled],.rk-btn[aria-disabled=true]{opacity:.45;cursor:not-allowed}.rk-btn[disabled]:before{display:none}.rk-btn .rk-btn__price{font-family:var(--font-text);font-size:1.25em;letter-spacing:0;text-transform:none;font-weight:500}.rk-btn[aria-busy=true]{pointer-events:none}.rk-btn rk-logo{height:26px}.rk-link{position:relative;color:inherit;text-decoration:none;padding-bottom:2px;cursor:pointer}.rk-link:after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:6px;background:currentColor;-webkit-mask:linear-gradient(#000 0 0) 0 50%/100% 1px no-repeat;mask:linear-gradient(#000 0 0) 0 50%/100% 1px no-repeat}.rk-link:hover,.rk-link.is-hover{color:var(--copper-ink)}.rk-link:hover:after,.rk-link.is-hover:after{-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='6' viewBox='0 0 14 6'%3E%3Cpath d='M0 3c3.5-3 3.5-3 7 0s3.5 3 7 0' fill='none' stroke='%23000' stroke-width='1.3'/%3E%3C/svg%3E") 0 50%/14px 6px repeat-x;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='6' viewBox='0 0 14 6'%3E%3Cpath d='M0 3c3.5-3 3.5-3 7 0s3.5 3 7 0' fill='none' stroke='%23000' stroke-width='1.3'/%3E%3C/svg%3E") 0 50%/14px 6px repeat-x;animation:rk-underline .9s linear infinite}@keyframes rk-underline{to{-webkit-mask-position:14px 50%;mask-position:14px 50%}}.rk-section-head{display:grid;grid-template-columns:minmax(0,1fr);row-gap:clamp(14px,1.5vw,20px);border-top:1px solid var(--rule);padding-top:clamp(16px,1.6vw,22px)}.rk-section-head__num{margin:0;font:400 12px/16px var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-muted)}.rk-section-head__title{margin:0;font:400 var(--fs-2, 60px)/1 var(--font-display);letter-spacing:.05em;text-transform:uppercase;text-wrap:balance}.rk-section-head__lead{margin:0;max-width:34em;font-size:var(--fs-lead, 22px);line-height:1.42;color:var(--ink-soft);text-wrap:pretty}@media(min-width:900px){.rk-section-head--inline{grid-template-columns:minmax(0,7fr) minmax(0,5fr);column-gap:var(--gap, 56px);align-items:start}.rk-section-head--inline .rk-section-head__num{grid-column:1 / -1}.rk-section-head--inline .rk-section-head__lead{grid-column:2;padding-top:calc(var(--fs-2, 60px) * .06)}}rk-river{display:block;overflow:hidden;border-block:1px solid var(--rule);padding:clamp(12px,1.3vw,18px) 0;white-space:nowrap;contain:content}rk-river .rk-river__track{display:inline-flex;will-change:transform}rk-river .rk-river__item{font:400 40px/1 var(--font-display);letter-spacing:.14em;text-transform:uppercase;padding-right:.9em}rk-river .rk-river__item:after{content:"~";display:inline-block;padding-left:.9em;color:var(--copper);letter-spacing:0}rk-river[size=s] .rk-river__item{font-size:20px;letter-spacing:.3em}rk-river[tone=copper]{color:var(--copper)}rk-river[italic] .rk-river__item{font:italic 400 clamp(24px,2.4vw,34px)/1.1 var(--font-text);letter-spacing:0;text-transform:none}rk-header{--rk-hh: 88px;--rk-logo-h: 60px;--rk-wl: 45px;position:sticky;top:env(safe-area-inset-top,0px);z-index:20;display:grid;grid-template-columns:auto 1fr auto;align-items:center;column-gap:var(--space-7);height:var(--rk-hh);padding:0 calc(max(0px,(100% - var(--container, 1280px)) / 2) + var(--gutter, 48px));box-sizing:border-box;background-color:var(--paper);color:var(--ink);border-bottom:1px solid var(--rule);transition:height var(--dur-move, .42s) var(--ease-river, cubic-bezier(.22,1,.36,1))}rk-header[compact]{--rk-hh: 64px;--rk-logo-h: 54px;--rk-wl: 46px}rk-header .rk-header__brand{position:relative;align-self:stretch;display:block;overflow:clip;width:calc(var(--rk-logo-h) * 1.88);color:inherit;transition:width var(--dur-move, .42s) var(--ease-river, cubic-bezier(.22,1,.36,1))}rk-header .rk-header__brand rk-logo{position:absolute;left:0;height:var(--rk-logo-h);top:calc(var(--rk-wl) - var(--rk-logo-h) * .52);transition:top var(--dur-move, .42s) var(--ease-river, cubic-bezier(.22,1,.36,1)),height var(--dur-move, .42s) var(--ease-river, cubic-bezier(.22,1,.36,1))}rk-header .rk-header__nav{display:flex;gap:clamp(20px,2.4vw,36px);justify-content:center}rk-header .rk-header__nav a{font:400 13px/20px var(--font-display);letter-spacing:.28em;text-transform:uppercase;color:var(--ink-soft);text-decoration:none;position:relative;padding:12px 0}rk-header .rk-header__nav a:hover,rk-header .rk-header__nav a[aria-current]{color:var(--ink)}rk-header .rk-header__nav a[aria-current]:after{content:"";position:absolute;left:0;right:.28em;bottom:2px;height:6px;background:var(--copper-ink);-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='6' viewBox='0 0 14 6'%3E%3Cpath d='M0 3c3.5-3 3.5-3 7 0s3.5 3 7 0' fill='none' stroke='%23000' stroke-width='1.3'/%3E%3C/svg%3E") 0 50%/14px 6px repeat-x;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='6' viewBox='0 0 14 6'%3E%3Cpath d='M0 3c3.5-3 3.5-3 7 0s3.5 3 7 0' fill='none' stroke='%23000' stroke-width='1.3'/%3E%3C/svg%3E") 0 50%/14px 6px repeat-x}rk-header .rk-header__actions{display:flex;gap:var(--space-4);align-items:center}rk-header .rk-header__burger{display:none}rk-header[narrow]{--rk-hh: 64px;--rk-logo-h: 50px;--rk-wl: 33px;grid-template-columns:1fr auto;column-gap:var(--space-4)}rk-header[narrow][compact]{--rk-hh: 56px;--rk-logo-h: 48px;--rk-wl: 40px}rk-header[narrow] .rk-header__nav{display:none}rk-header[narrow] .rk-header__actions{display:none}rk-header[narrow] .rk-header__burger{grid-column:2;grid-row:1;justify-self:end;display:inline-flex;align-items:center;gap:10px;height:44px;padding:0;margin:0 -2px 0 0;border:0;background:none;color:var(--ink);font:400 12px/1 var(--font-display);letter-spacing:.28em;text-transform:uppercase;cursor:pointer}rk-header[narrow] .rk-header__burger:after{content:"";width:26px;height:9px;background:currentColor;-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='13' height='9' viewBox='0 0 13 9'%3E%3Cpath d='M0 1.5c3.2-2 3.3 2 6.5 0s3.3 2 6.5 0M0 7.5c3.2-2 3.3 2 6.5 0s3.3 2 6.5 0' fill='none' stroke='%23000' stroke-width='1.3'/%3E%3C/svg%3E") 0 0/13px 9px repeat-x;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='13' height='9' viewBox='0 0 13 9'%3E%3Cpath d='M0 1.5c3.2-2 3.3 2 6.5 0s3.3 2 6.5 0M0 7.5c3.2-2 3.3 2 6.5 0s3.3 2 6.5 0' fill='none' stroke='%23000' stroke-width='1.3'/%3E%3C/svg%3E") 0 0/13px 9px repeat-x}rk-header[narrow][open] .rk-header__nav{display:flex;position:absolute;left:0;right:0;top:100%;flex-direction:column;gap:0;padding:var(--space-3) var(--gutter, 20px) var(--space-6);background:var(--paper);border-bottom:1px solid var(--rule);box-shadow:var(--shadow-float)}rk-header[narrow][open] .rk-header__nav a{font-size:26px;line-height:1;letter-spacing:.1em;padding:18px 0;border-bottom:1px solid var(--line);color:var(--ink);animation:rk-letter-in .5s var(--ease-river, cubic-bezier(.22,1,.36,1)) both}rk-header[narrow][open] .rk-header__nav a:nth-child(2){animation-delay:40ms}rk-header[narrow][open] .rk-header__nav a:nth-child(3){animation-delay:80ms}rk-header[narrow][open] .rk-header__nav a:nth-child(4){animation-delay:.12s}rk-header[narrow][open] .rk-header__nav a:nth-child(5){animation-delay:.16s}rk-header[narrow][open] .rk-header__nav a[aria-current]:after{display:none}rk-header[narrow][open] .rk-header__nav rk-theme{display:flex;align-self:flex-start;margin:12px 0 0 -6px;font-size:14px;animation:rk-letter-in .5s var(--ease-river, cubic-bezier(.22,1,.36,1)) .2s both}rk-header[narrow][open] .rk-header__nav rk-theme .rk-theme__opt{height:48px}rk-theme{display:inline-flex;align-items:center;font:400 12px/1 var(--font-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--ink-muted);white-space:nowrap}rk-theme .rk-theme__opt{all:unset;position:relative;box-sizing:border-box;display:inline-flex;align-items:center;height:40px;padding:0 6px;cursor:pointer;color:var(--ink-muted);transition:color var(--dur-quick, .16s) ease;-webkit-tap-highlight-color:transparent}rk-theme .rk-theme__opt:hover{color:var(--ink)}rk-theme .rk-theme__opt[aria-pressed=true]{color:var(--ink);cursor:default}rk-theme .rk-theme__opt:focus-visible{outline:2px solid var(--focus);outline-offset:3px}rk-theme .rk-theme__opt:after{content:"";position:absolute;left:6px;right:calc(6px + .14em);bottom:5px;height:6px;background:var(--copper-ink);visibility:hidden;-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='6' viewBox='0 0 14 6'%3E%3Cpath d='M0 3c3.5-3 3.5-3 7 0s3.5 3 7 0' fill='none' stroke='%23000' stroke-width='1.3'/%3E%3C/svg%3E") 0 50%/14px 6px repeat-x;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='6' viewBox='0 0 14 6'%3E%3Cpath d='M0 3c3.5-3 3.5-3 7 0s3.5 3 7 0' fill='none' stroke='%23000' stroke-width='1.3'/%3E%3C/svg%3E") 0 50%/14px 6px repeat-x}rk-theme .rk-theme__opt[aria-pressed=true]:after{visibility:visible;animation:rk-theme-flow .7s var(--ease-river, cubic-bezier(.22,1,.36,1)) both}@keyframes rk-theme-flow{0%{clip-path:inset(0 100% 0 0);-webkit-mask-position:-14px 50%;mask-position:-14px 50%}to{clip-path:inset(0 0 0 0);-webkit-mask-position:0 50%;mask-position:0 50%}}rk-theme .rk-theme__sep{padding:0 1px;color:var(--line-strong)}:root.rk-theme-shift::view-transition-old(root),:root.rk-theme-shift::view-transition-new(root){animation:none;mix-blend-mode:normal}rk-thunder{--cell: 56px;display:grid;grid-template-columns:auto minmax(0,1fr);min-width:0;gap:var(--space-7);align-items:start;color:var(--ink)}rk-thunder[legend=none]{grid-template-columns:auto}rk-thunder .rk-thunder__frame{position:relative;border-block:1px solid var(--rule);padding:calc(var(--cell) * .32) 0}rk-thunder .rk-thunder__grid{display:grid;grid-template-columns:repeat(var(--cols, 10),var(--cell));grid-auto-rows:var(--cell)}rk-thunder .rk-thunder__cell{position:relative;display:grid;place-items:center;font:400 calc(var(--cell) * .66)/1 var(--font-display);color:var(--ink);transition:color .25s ease,background-color .25s ease;border-radius:var(--radius-sm)}rk-thunder .rk-thunder__cell.is-lit{color:var(--copper-ink);background-color:var(--copper-soft)}rk-thunder .rk-thunder__cell.is-lit:after{content:"";position:absolute;left:14%;right:14%;bottom:10%;height:1px;background:var(--copper-ink)}rk-thunder .rk-thunder__cell.is-settling{color:var(--ink-muted)}rk-thunder.is-dim .rk-thunder__cell:not(.is-lit){color:color-mix(in srgb,var(--ink) 38%,transparent)}rk-thunder.is-thunder .rk-thunder__grid{animation:rk-shake .6s cubic-bezier(.36,.07,.19,.97)}rk-thunder.is-thunder .rk-thunder__frame:after{content:"";position:absolute;inset:0;background:var(--copper-soft);mix-blend-mode:multiply;animation:rk-flash .7s ease-out both;pointer-events:none}@keyframes rk-shake{10%,90%{transform:translate(-1px)}20%,80%{transform:translate(2px,1px)}30%,50%,70%{transform:translate(-4px,-1px)}40%,60%{transform:translate(4px,1px)}}@keyframes rk-flash{0%{opacity:0}12%{opacity:.9}30%{opacity:.2}42%{opacity:.7}to{opacity:0}}rk-thunder .rk-thunder__legend{list-style:none;margin:0;padding:0;border-top:1px solid var(--rule)}rk-thunder .rk-thunder__item{border-bottom:1px solid var(--line)}rk-thunder .rk-thunder__btn{all:unset;box-sizing:border-box;display:grid;grid-template-columns:1fr auto;gap:2px 16px;width:100%;padding:12px 4px;cursor:pointer}rk-thunder .rk-thunder__name{font:400 15px/22px var(--font-display);letter-spacing:.24em;text-transform:uppercase}rk-thunder .rk-thunder__pos{font:12px/22px var(--font-mono);color:var(--ink-muted);letter-spacing:.06em}rk-thunder .rk-thunder__note{grid-column:1 / -1;font:400 17px/24px var(--font-text);color:var(--ink-soft);max-height:0;overflow:hidden;opacity:0;transition:max-height .4s var(--ease-river, cubic-bezier(.22,1,.36,1)),opacity .3s}rk-thunder .rk-thunder__btn[aria-pressed=true] .rk-thunder__name{color:var(--copper-ink)}rk-thunder .rk-thunder__btn[aria-pressed=true] .rk-thunder__note{max-height:80px;opacity:1}rk-thunder .rk-thunder__btn:focus-visible{outline:2px solid var(--focus);outline-offset:-2px}rk-thunder .rk-thunder__foot{margin-top:var(--space-4);display:flex;gap:var(--space-4);align-items:center}@media(max-width:860px){rk-thunder{grid-template-columns:1fr;--cell: min(9vw, 44px)}}rk-book{--w: 320px;--d: calc(var(--w) * .3);--ry: 28deg;--rx: 0deg;--cam: calc(var(--w) * .45);position:relative;display:inline-block;perspective:calc(var(--w) * 5);perspective-origin:50% calc(50% - var(--cam));color:var(--ink);-webkit-tap-highlight-color:transparent}rk-book[reflect]{--rx: 5deg;--cam: 0px}rk-book .rk-book__obj{position:relative;width:var(--w);aspect-ratio:148 / 210;transform-style:preserve-3d;transform:rotateX(var(--rx)) rotateY(var(--ry));transition:transform .9s var(--ease-river, cubic-bezier(.22,1,.36,1))}rk-book.is-tracking .rk-book__obj{transition:transform .25s ease-out}rk-book .rk-book__body{position:absolute;inset:0;transform-style:preserve-3d}rk-book .rk-book__face{position:absolute;box-sizing:border-box;backface-visibility:hidden}rk-book .rk-book__front{inset:0;transform:translateZ(calc(var(--d) / 2));background:var(--cover-paper);overflow:hidden}rk-book .rk-book__front img{display:block;width:100%;height:100%;object-fit:cover}rk-book .rk-book__front:after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,#ffffff47 0,#fff0 1.1%),linear-gradient(90deg,transparent 4.4%,rgb(27 23 19 / .12) 5.1%,rgb(27 23 19 / .03) 5.8%,rgb(255 255 255 / .18) 6.3%,transparent 7.3%),linear-gradient(98deg,rgb(255 255 255 / .1) 0,transparent 38%,rgb(27 23 19 / .07) 100%),linear-gradient(180deg,rgb(255 255 255 / .06) 0,transparent 30%,rgb(27 23 19 / .05) 100%)}rk-book .rk-book__imprint{position:absolute;left:33%;right:33%;bottom:5.4%;height:2.9%;display:grid;place-items:center;background:var(--cover-paper);color:var(--cover-ink)}rk-book .rk-book__imprint rk-logo{height:100%}rk-book .rk-book__light{position:absolute;inset:0;pointer-events:none}rk-book .rk-book__light:before,rk-book .rk-book__light:after{content:"";position:absolute;inset:0;transition:opacity .9s var(--ease-river, cubic-bezier(.22,1,.36,1)),background-position .9s var(--ease-river, cubic-bezier(.22,1,.36,1))}rk-book.is-tracking .rk-book__light:before,rk-book.is-tracking .rk-book__light:after{transition-duration:.25s;transition-timing-function:ease-out}rk-book .rk-book__light:before{background:#1b1713;opacity:.05}rk-book .rk-book__front .rk-book__light:after{background:linear-gradient(112deg,transparent 36%,rgb(255 255 255 / .09) 46%,rgb(255 255 255 / .11) 50%,rgb(255 255 255 / .03) 58%,transparent 66%) 50% 0 / 300% 100% no-repeat}@supports (opacity: sin(30deg)){rk-book{--lit-f: calc(-.35*sin(var(--ry)) + .45*cos(var(--ry))*sin(var(--rx)) + .82*cos(var(--ry))*cos(var(--rx))) ;--lit-s: calc(.35*cos(var(--ry)) + .45*sin(var(--ry))*sin(var(--rx)) + .82*sin(var(--ry))*cos(var(--rx))) }rk-book .rk-book__front .rk-book__light:before{opacity:clamp(0,calc(.04 + (.6 - var(--lit-f)) * .26),.18)}rk-book .rk-book__spine .rk-book__light:before{opacity:clamp(0,calc(.05 + (.7 - var(--lit-s)) * .3),.2)}rk-book .rk-book__front .rk-book__light:after{background-position:calc(50% + (sin(var(--ry)) - .47)*130%) 0}}rk-book .rk-book__back{inset:0;transform:rotateY(180deg) translateZ(calc(var(--d) / 2));background:var(--cover-paper)}rk-book .rk-book__spine{top:0;left:calc(50% - var(--d) / 2);width:var(--d);height:100%;transform:rotateY(-90deg) translateZ(calc(var(--w) / 2));background:var(--cover-paper);color:var(--cover-ink)}rk-book .rk-book__spine:after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,#1b171333 0,#1b171312 9%,#ffffff1a 36%,#ffffff0d 60%,#1b17130f 86%,#1b171329),linear-gradient(180deg,rgb(255 255 255 / .05) 0,transparent 35%,rgb(27 23 19 / .07) 100%)}rk-book .rk-book__spine-in{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;padding-bottom:calc(var(--w) * .1);background:linear-gradient(#1b17134d,#1b17134d) 0 5%/100% 1px no-repeat,linear-gradient(#1b17134d,#1b17134d) 0 95%/100% 1px no-repeat}rk-book .rk-book__spine-text{writing-mode:vertical-rl;display:flex;flex-direction:column;align-items:center;gap:calc(var(--d) * .14);white-space:nowrap;text-transform:uppercase}rk-book .rk-book__spine-author{font:400 clamp(6px,calc(var(--w) * .03),13px)/1 var(--font-display);letter-spacing:.3em}rk-book .rk-book__spine-title{font:400 clamp(7px,calc(var(--w) * .043),18px)/1 var(--font-display);letter-spacing:.2em;color:var(--cover-copper, #975b2c)}rk-book .rk-book__spine-mark{position:absolute;left:50%;bottom:8.5%;height:clamp(12px,calc(var(--w) * .085),34px);transform:translate(-50%);color:var(--cover-ink)}rk-book .rk-book__pages{top:1.2%;left:calc(50% - var(--d) / 2);width:calc(var(--d) - 2px);height:97.6%;transform:rotateY(90deg) translateZ(calc(var(--w) / 2 - 3px));background:linear-gradient(90deg,#1b171329,#1b17130a 12%,#1b171305,#1b17130a 88%,#1b171329),repeating-linear-gradient(90deg,rgb(110 88 58 / .07) 0 1px,transparent 1px 4px),#ebe2cf}rk-book .rk-book__top,rk-book .rk-book__bottom{left:0;top:calc(50% - var(--d) / 2);width:calc(100% - 3px);height:calc(var(--d) - 2px);--b: calc(var(--w) * .016);--edge: linear-gradient(90deg, #d9cfba 0 calc(var(--w) * .01), transparent 0), linear-gradient(180deg, #ebe3d1 0 var(--b), rgb(27 23 19 / .16) 0 calc(var(--b) + 1px), transparent 0 calc(100% - var(--b) - 1px), rgb(27 23 19 / .16) 0 calc(100% - var(--b)), #ebe3d1 0), linear-gradient(90deg, transparent calc(var(--w) * .01), #7e4a25 0, #b27c4a calc(var(--w) * .017), #7e4a25 calc(var(--w) * .024), rgb(27 23 19 / .12) 0 calc(var(--w) * .024 + 1px), transparent 0), linear-gradient(180deg, rgb(27 23 19 / .1), transparent 24%, transparent 76%, rgb(27 23 19 / .1)), linear-gradient(90deg, rgb(255 255 255 / .2), transparent 30%, transparent 75%, rgb(27 23 19 / .07)), #f1e9da;background:var(--edge)}rk-book .rk-book__top{transform:rotateX(90deg) translateZ(calc(var(--w) * 105 / 148 - 1px))}rk-book .rk-book__bottom{transform:rotateX(-90deg) translateZ(calc(var(--w) * 105 / 148 - 1px));background:linear-gradient(#1b171338,#1b171338),var(--edge)}rk-book .rk-book__floor{position:absolute;left:calc(50% - var(--w) * .65);top:calc(50% - var(--d) * 1.1);width:calc(var(--w) * 1.3);height:calc(var(--d) * 2.2);pointer-events:none;backface-visibility:hidden;transform:rotateX(var(--rx)) rotateY(var(--ry)) translateY(calc(var(--w) * 105 / 148)) rotateX(90deg);transition:transform .9s var(--ease-river, cubic-bezier(.22,1,.36,1))}rk-book.is-tracking .rk-book__floor{transition:transform .25s ease-out}rk-book .rk-book__shadow{position:absolute;inset:0;background:radial-gradient(closest-side at 54% 46%,#100c084d,#100c081f 55%,#100c0800)}rk-book .rk-book__shadow:before{content:"";position:absolute;left:calc(11.54% + var(--w) * .03);top:calc(27.27% - var(--d) * .08);width:calc(var(--w) * .96);height:calc(var(--d) * 1.02);background:#100c086b;filter:blur(calc(var(--w) * .022))}rk-book .rk-book__reflection{position:absolute;left:calc(var(--w) * -.25);width:calc(var(--w) * 1.5);top:100%;height:var(--reflect-h, calc(var(--w) * .9));pointer-events:none;opacity:.5;-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='96' height='16' viewBox='0 0 96 16'%3E%3Cpath d='M0 4C16 1 32 1 48 4s32 3 48 0v8c-16 3-32 3-48 0S16 9 0 12z'/%3E%3C/svg%3E") 0 2px/96px 16px repeat,linear-gradient(#000 0,transparent 82%);-webkit-mask-composite:source-in;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='96' height='16' viewBox='0 0 96 16'%3E%3Cpath d='M0 4C16 1 32 1 48 4s32 3 48 0v8c-16 3-32 3-48 0S16 9 0 12z'/%3E%3C/svg%3E") 0 2px/96px 16px repeat,linear-gradient(#000 0,transparent 82%);mask-composite:intersect;animation:rk-current 9s linear infinite}@keyframes rk-current{to{-webkit-mask-position:96px 2px,0 0;mask-position:96px 2px,0 0}}rk-book .rk-book__mirror{position:absolute;left:calc(var(--w) * .25);top:0;width:var(--w);height:calc(var(--w) * 210 / 148);perspective:calc(var(--w) * 5);perspective-origin:50% calc(50% + var(--cam))}rk-book .rk-book__mirror .rk-book__obj{transform:rotateX(calc(var(--rx) * -1)) rotateY(var(--ry))}rk-book .rk-book__mirror .rk-book__flip{position:absolute;inset:0;transform:scaleY(-1)}rk-book .rk-book__mirror .rk-book__front:after,rk-book .rk-book__mirror .rk-book__spine-in{transform:scaleY(-1)}rk-book[float] .rk-book__body{animation:rk-float 6s ease-in-out infinite}rk-book[float] .rk-book__mirror .rk-book__body{animation-name:rk-float-mirror}rk-book[float] .rk-book__shadow{animation:rk-shadow-bob 6s ease-in-out infinite}@keyframes rk-float{50%{transform:rotateY(4deg) translateY(calc(var(--w) * -.025))}}@keyframes rk-float-mirror{50%{transform:rotateY(4deg) translateY(calc(var(--w) * .025))}}@keyframes rk-shadow-bob{50%{opacity:.62;transform:scale(1.07)}}rk-book.is-tracking .rk-book__body,rk-book.is-tracking .rk-book__shadow{animation-play-state:paused}rk-run{--goal: 50;--rk-run-gap: clamp(2px, .35vw, 4px);display:block;min-width:0;color:var(--ink)}rk-run .rk-run__head{margin:0 0 var(--space-5);display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 16px;font-size:var(--fs-small, 17px);line-height:1.45;color:var(--ink-soft)}rk-run .rk-run__num{display:inline-flex;align-items:baseline;gap:12px;white-space:nowrap;color:var(--ink)}rk-run .rk-run__n{font:400 clamp(52px,6vw,76px)/.86 var(--font-display);color:var(--copper);font-variant-numeric:lining-nums}rk-run .rk-run__of{font:400 18px/1 var(--font-display);letter-spacing:.16em;text-transform:uppercase}rk-run .rk-run__text{flex:1 1 15em;max-width:30em}rk-run .rk-run__shelf{position:relative}rk-run .rk-run__row,rk-run .rk-run__refl{display:grid;grid-template-columns:repeat(var(--goal),minmax(0,1fr));gap:var(--rk-run-gap);padding:0 1px}rk-run .rk-run__row{height:64px;align-items:end;border-bottom:1px solid var(--rule)}rk-run .rk-run__row i{display:block;height:100%;background:color-mix(in srgb,var(--line) 55%,transparent);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--line-strong) 45%,transparent)}rk-run .rk-run__row i.is-on{background:linear-gradient(var(--ink) 0 16%,var(--copper) 16% 22%,var(--ink) 22%);box-shadow:none}rk-run .rk-run__row i.is-mine{background:linear-gradient(var(--copper) 0 16%,var(--paper) 16% 22%,var(--copper) 22%)}rk-run .rk-run__row i.is-new{animation:rk-run-in .7s var(--ease-type, cubic-bezier(.5,0,.1,1.25)) both}@keyframes rk-run-in{0%{transform:translateY(-80%);opacity:0}to{transform:none;opacity:1}}rk-run .rk-run__refl{height:22px;align-items:end;overflow:hidden;transform:scaleY(-1);opacity:.4;-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='48' height='8' viewBox='0 0 48 8'%3E%3Cpath d='M0 2C8 .5 16 .5 24 2s16 1.5 24 0v4c-8 1.5-16 1.5-24 0S8 4.5 0 6z'/%3E%3C/svg%3E") 0 0/48px 8px repeat,linear-gradient(to top,#000 0,transparent 95%);-webkit-mask-composite:source-in;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='48' height='8' viewBox='0 0 48 8'%3E%3Cpath d='M0 2C8 .5 16 .5 24 2s16 1.5 24 0v4c-8 1.5-16 1.5-24 0S8 4.5 0 6z'/%3E%3C/svg%3E") 0 0/48px 8px repeat,linear-gradient(to top,#000 0,transparent 95%);mask-composite:intersect}rk-run .rk-run__refl i{display:block;height:64px;background:transparent}rk-run .rk-run__refl i.is-on{background:var(--ink)}rk-run .rk-run__refl 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svg{width:26px;height:26px;fill:currentColor}rk-listen .rk-listen__head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:2px var(--space-4)}rk-listen .rk-listen__title{font:italic 400 24px/30px var(--font-text)}rk-listen .rk-listen__time{font:13px/16px var(--font-mono);color:var(--ink-muted);letter-spacing:.04em;white-space:nowrap}rk-listen .rk-listen__meta{font:12px/16px var(--font-mono);color:var(--ink-muted);letter-spacing:.08em;text-transform:uppercase;margin-top:4px}rk-listen .rk-listen__wave{display:block;width:100%;height:64px;margin-top:10px;cursor:pointer;touch-action:none}rk-listen .rk-listen__wave path{fill:none;stroke-width:2.4;stroke-linecap:round}rk-listen .rk-listen__wave .is-ahead{stroke:var(--line-strong)}rk-listen .rk-listen__wave .is-done{stroke:var(--copper)}rk-listen .rk-listen__wave .rk-listen__head-line{stroke:var(--ink);stroke-width:1}rk-search{display:block;position:relative;color:var(--ink);min-width:0}rk-search 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