/*! tailwindcss v4.2.1 | MIT License | https://tailwindcss.com */
@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial}}}@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4, 0, .2, 1);--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.visible{visibility:visible}.fixed{position:fixed}.relative{position:relative}.start{inset-inline-start:var(--spacing)}.block{display:block}.table{display:table}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}}:root{--white:#fff;--black:#111;--gray-900:#1d1d1f;--gray-700:#4b4b4d;--gray-500:#747476;--gray-300:#c9c9ca;--gray-200:#e5e5e6;--gray-100:#f5f5f6;--bitcoin-orange:#f7931a;--content-wide:1180px;--content-narrow:980px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--white);color:var(--black);-webkit-font-smoothing:antialiased;margin:0;font-family:Arial,Helvetica,sans-serif}body,button,input{font-size:16px}a{color:inherit}img{max-width:100%}code{border:1px solid var(--gray-300);border-radius:3px;padding:.12em .36em;font-family:Courier New,Courier,monospace;font-size:.88em}::selection{background:var(--black);color:var(--white)}:focus-visible{outline:2px solid var(--black);outline-offset:4px}.content-wide,.content-narrow{width:calc(100% - 48px);margin-inline:auto}.content-wide{max-width:var(--content-wide)}.content-narrow{max-width:var(--content-narrow)}.centered{text-align:center}.site-header{z-index:50;border-bottom:1px solid var(--gray-200);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#fffffff5;position:sticky;top:0}.header-inner{width:calc(100% - 48px);max-width:var(--content-wide);justify-content:space-between;align-items:center;gap:32px;min-height:76px;margin-inline:auto;display:flex}.brand{color:var(--black);letter-spacing:-.025em;white-space:nowrap;align-items:center;gap:10px;font-size:20px;font-weight:700;text-decoration:none;display:inline-flex}.bitcoin-logo{background:var(--bitcoin-orange);width:38px;height:38px;color:var(--white);border-radius:50%;flex:0 0 38px;place-items:center;font:700 25px/1 Arial,Helvetica,sans-serif;display:grid;transform:rotate(12deg)}.site-header nav{align-items:center;gap:clamp(18px,3vw,38px);display:flex}.site-header nav a{color:var(--gray-700);font-size:14px;font-weight:600;text-decoration:none}.site-header nav a:hover{color:var(--black)}.eyebrow{color:var(--gray-700);letter-spacing:.13em;text-transform:uppercase;margin:0 0 18px;font-size:13px;font-weight:700}.eyebrow.inverse{color:var(--gray-300)}h1,h2,h3{color:inherit}.home-hero{border-bottom:1px solid var(--gray-200);text-align:center;place-items:center;min-height:650px;padding:110px 0 118px;display:grid}.hero-inner h1{letter-spacing:-.065em;margin:0;font-size:clamp(58px,9vw,112px);line-height:.94}.hero-lede{max-width:800px;color:var(--gray-700);margin:34px auto 0;font-size:clamp(19px,2.2vw,25px);line-height:1.55}.button-row{flex-wrap:wrap;justify-content:center;gap:12px;margin-top:40px;display:flex}.button{border:1px solid var(--black);border-radius:3px;justify-content:center;align-items:center;min-height:50px;padding:14px 24px;font-size:15px;font-weight:700;text-decoration:none;transition:background .15s,color .15s;display:inline-flex}.button-dark{background:var(--black);color:var(--white)}.button-dark:hover,.button-light{background:var(--white);color:var(--black)}.button-light:hover{background:var(--black);color:var(--white)}.hero-note{color:var(--gray-500);margin:28px 0 0;font-size:13px}.snapshot,.route-section,.safety-section,.closing-cta{padding:112px 0}.snapshot{background:var(--gray-100);border-bottom:1px solid var(--gray-200)}.section-heading{max-width:760px;margin-inline:auto}.section-heading h2,.safety-grid h2,.closing-cta h2,.contrast-grid h2{letter-spacing:-.045em;margin:0;font-size:clamp(38px,5vw,62px);line-height:1.05}.section-heading>p:last-child{color:var(--gray-700);margin:22px auto 0;font-size:19px;line-height:1.65}.metric-grid{border:1px solid var(--gray-300);background:var(--white);grid-template-columns:repeat(4,1fr);margin-top:64px;display:grid}.metric-grid article{border-right:1px solid var(--gray-300);min-height:230px;padding:30px}.metric-grid article:last-child{border-right:0}.metric{letter-spacing:-.045em;margin-bottom:52px;font-size:clamp(30px,3.1vw,43px);font-weight:700;display:block}.metric-grid h3{margin:0;font-size:15px}.metric-grid p{color:var(--gray-700);margin:10px 0 0;font-size:14px;line-height:1.55}.route-section{border-bottom:1px solid var(--gray-200)}.route-grid{border-top:1px solid var(--black);grid-template-columns:repeat(3,1fr);margin-top:64px;display:grid}.route-grid>a{border-right:1px solid var(--gray-300);border-bottom:1px solid var(--black);min-height:345px;color:var(--black);flex-direction:column;padding:30px;text-decoration:none;display:flex}.route-grid>a:first-child{border-left:1px solid var(--gray-300)}.route-grid>a:hover{background:var(--gray-100)}.card-index{color:var(--gray-500);font:13px/1 Courier New,Courier,monospace}.route-grid h3{letter-spacing:-.025em;margin:58px 0 0;font-size:25px;line-height:1.22}.route-grid p{color:var(--gray-700);margin:16px 0 24px;font-size:15px;line-height:1.6}.card-action{margin-top:auto;font-size:14px;font-weight:700}.contrast-section{background:var(--black);color:var(--white);padding:105px 0}.contrast-grid{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:90px;display:grid}.state-list{border-top:1px solid var(--gray-700)}.state-list>div{border-bottom:1px solid var(--gray-700);grid-template-columns:160px 1fr;gap:28px;padding:24px 0;display:grid}.state-list p{color:var(--gray-300);margin:0;font-size:15px;line-height:1.6}.status-label{letter-spacing:.07em;text-transform:uppercase;border:1px solid;border-radius:999px;align-self:start;width:fit-content;padding:5px 8px;font-size:11px;font-weight:700;display:inline-block}.safety-grid{grid-template-columns:minmax(0,1fr) minmax(0,.8fr);gap:80px;display:grid}.safety-grid>div:last-child{padding-top:30px}.safety-grid p{color:var(--gray-700);margin:0 0 20px;font-size:17px;line-height:1.72}.external-link{text-underline-offset:4px;margin-top:8px;font-weight:700;display:inline-block}.closing-cta{background:var(--gray-100);border-top:1px solid var(--gray-200)}.closing-cta h2{max-width:760px;margin-inline:auto}.closing-cta .button{margin-top:36px}.page-intro{border-bottom:1px solid var(--gray-200);text-align:center;padding:96px 0 82px}.page-intro h1{letter-spacing:-.055em;margin:0;font-size:clamp(48px,7vw,82px);line-height:1}.intro-copy{max-width:820px;color:var(--gray-700);margin:28px auto 0;font-size:20px;line-height:1.65}.intro-copy p{margin:0}.article-layout{grid-template-columns:220px minmax(0,760px);gap:80px;width:calc(100% - 48px);max-width:1180px;margin:0 auto;padding:88px 0 120px;display:grid}.article-nav{align-self:start;position:sticky;top:108px}.article-nav p{color:var(--gray-500);letter-spacing:.12em;text-transform:uppercase;margin:0 0 14px;font-size:11px;font-weight:700}.article-nav a{color:var(--gray-700);padding:8px 0;font-size:14px;text-decoration:none;display:block}.article-nav a:hover{color:var(--black)}.prose-section{padding:0 0 76px;scroll-margin-top:110px}.prose-section+.prose-section{border-top:1px solid var(--gray-200);padding-top:76px}.phase-number{color:var(--gray-500);letter-spacing:.1em;text-transform:uppercase;margin-bottom:20px;font:12px/1 Courier New,Courier,monospace;display:block}.prose-section h2{letter-spacing:-.04em;margin:0;font-size:clamp(34px,4.2vw,52px);line-height:1.08}.prose-section h3{letter-spacing:-.02em;margin:48px 0 14px;font-size:24px;line-height:1.25}.prose-section p,.prose-section li{color:var(--gray-700);font-size:16px;line-height:1.75}.prose-section p{margin:18px 0 0}.prose-section ol,.prose-section ul{margin:20px 0 0;padding-left:24px}.prose-section li+li{margin-top:10px}.prose-section strong{color:var(--black)}.callout{border:1px solid var(--black);background:var(--gray-100);margin-top:32px;padding:24px}.callout p:first-child{margin-top:0}.hash{overflow-wrap:anywhere;font-family:Courier New,Courier,monospace;font-size:.86em}.data-table-wrap{border:1px solid var(--gray-300);margin-top:28px;overflow-x:auto}.data-table{border-collapse:collapse;width:100%;min-width:680px}.data-table th,.data-table td{border-right:1px solid var(--gray-300);border-bottom:1px solid var(--gray-300);text-align:left;vertical-align:top;padding:14px 16px;font-size:13px;line-height:1.55}.data-table th:last-child,.data-table td:last-child{border-right:0}.data-table tr:last-child td{border-bottom:0}.data-table th{background:var(--black);color:var(--white);letter-spacing:.07em;text-transform:uppercase;font-size:11px}.data-table td{color:var(--gray-700)}.data-table td:first-child{color:var(--black);font-weight:700}.timeline-page{padding:88px 0 120px}.timeline-list{border-top:1px solid var(--black);max-width:980px;margin:0 auto}.timeline-item{border-bottom:1px solid var(--gray-300);grid-template-columns:190px minmax(0,1fr) 150px;gap:34px;padding:30px 0;display:grid}.timeline-date{font:13px/1.5 Courier New,Courier,monospace}.timeline-event h2{margin:0;font-size:20px;line-height:1.35}.timeline-event p{color:var(--gray-700);margin:10px 0 0;font-size:14px;line-height:1.6}.timeline-status{justify-self:end}.technical-page,.sources-page{padding:88px 0 120px}.technical-block,.sources-block{scroll-margin-top:110px}.technical-block+.technical-block,.sources-block+.sources-block{border-top:1px solid var(--gray-200);margin-top:88px;padding-top:88px}.block-heading{max-width:760px}.block-heading h2{letter-spacing:-.04em;margin:0;font-size:clamp(34px,4.2vw,52px);line-height:1.08}.block-heading p{color:var(--gray-700);margin:18px 0 0;font-size:17px;line-height:1.7}.fact-sheet{border-top:1px solid var(--black);margin-top:38px}.fact-row{border-bottom:1px solid var(--gray-300);grid-template-columns:290px minmax(0,1fr);gap:34px;padding:18px 0;display:grid}.fact-row dt{color:var(--gray-500);font-size:13px}.fact-row dd{color:var(--black);overflow-wrap:anywhere;margin:0;font-size:14px;line-height:1.55}.download-card{border:1px solid var(--black);justify-content:space-between;align-items:center;gap:24px;margin-top:42px;padding:24px;display:flex}.download-card p{color:var(--gray-700);margin:5px 0 0;font-size:14px}.term-grid,.policy-grid{border-top:1px solid var(--black);border-left:1px solid var(--gray-300);grid-template-columns:repeat(2,1fr);margin-top:40px;display:grid}.term-grid article,.policy-grid article{border-right:1px solid var(--gray-300);border-bottom:1px solid var(--gray-300);padding:26px}.term-grid h3,.policy-grid h3{margin:0;font-size:18px}.term-grid p,.policy-grid p{color:var(--gray-700);margin:12px 0 0;font-size:14px;line-height:1.65}.source-links{border-top:1px solid var(--black);margin-top:38px}.source-links a{border-bottom:1px solid var(--gray-300);grid-template-columns:54px 1fr auto;align-items:center;gap:22px;padding:20px 0;text-decoration:none;display:grid}.source-links a:hover{background:var(--gray-100)}.source-links a>span:first-child{color:var(--gray-500);font:12px/1 Courier New,Courier,monospace}.source-links strong{font-size:15px}.source-links small{color:var(--gray-700);font-size:12px}.source-links b{font-size:16px}.plain-list{columns:2;column-gap:50px;margin:32px 0 0;padding-left:20px}.plain-list li{break-inside:avoid;color:var(--gray-700);margin:0 0 12px;font-size:15px;line-height:1.6}.site-footer{background:var(--black);color:var(--white);padding:72px 0 28px}.footer-grid,.footer-bottom{width:calc(100% - 48px);max-width:var(--content-wide);margin-inline:auto}.footer-grid{grid-template-columns:2fr 1fr 1fr;gap:70px;padding-bottom:64px;display:grid}.footer-title{margin:0 0 16px;font-size:23px;font-weight:700}.footer-grid>div:first-child p:last-child{max-width:430px;color:var(--gray-300);margin:0;font-size:14px;line-height:1.65}.footer-label{color:var(--gray-500);letter-spacing:.12em;text-transform:uppercase;margin:0 0 16px;font-size:11px;font-weight:700}.footer-grid a{width:fit-content;color:var(--white);margin:9px 0;font-size:14px;text-decoration:none;display:block}.footer-grid a:hover{text-underline-offset:4px;text-decoration:underline}.footer-bottom{border-top:1px solid var(--gray-700);color:var(--gray-500);justify-content:space-between;gap:30px;padding-top:24px;font-size:11px;line-height:1.5;display:flex}@media (width<=900px){.header-inner{align-items:flex-start;padding:18px 0}.site-header nav{flex-wrap:wrap;justify-content:flex-end;gap:12px 20px}.metric-grid{grid-template-columns:repeat(2,1fr)}.metric-grid article:nth-child(2){border-right:0}.metric-grid article:nth-child(-n+2){border-bottom:1px solid var(--gray-300)}.route-grid{grid-template-columns:1fr}.route-grid>a{border-left:1px solid var(--gray-300);min-height:270px}.contrast-grid,.safety-grid{grid-template-columns:1fr;gap:54px}.article-layout{grid-template-columns:1fr;gap:42px}.article-nav{border-bottom:1px solid var(--gray-200);flex-wrap:wrap;gap:0 20px;padding-bottom:20px;display:flex;position:static}.article-nav p{width:100%}.timeline-item{grid-template-columns:150px minmax(0,1fr)}.timeline-status{grid-column:2;justify-self:start}.footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:36px}}@media (width<=640px){.content-wide,.content-narrow,.header-inner,.footer-grid,.footer-bottom,.article-layout{width:calc(100% - 32px)}.site-header{position:static}.header-inner{display:block}.brand{font-size:18px}.bitcoin-logo{flex-basis:34px;width:34px;height:34px;font-size:22px}.site-header nav{justify-content:flex-start;margin-top:18px}.home-hero{min-height:auto;padding:82px 0}.hero-inner h1{font-size:clamp(52px,17vw,76px)}.hero-lede{font-size:18px}.button-row{display:grid}.snapshot,.route-section,.safety-section,.closing-cta{padding:80px 0}.metric-grid{grid-template-columns:1fr}.metric-grid article{border-right:0;border-bottom:1px solid var(--gray-300)}.metric-grid article:last-child{border-bottom:0}.section-heading>p:last-child{font-size:17px}.contrast-section{padding:80px 0}.state-list>div{grid-template-columns:1fr;gap:14px}.page-intro{padding:72px 0 62px}.intro-copy{font-size:17px}.article-layout,.timeline-page,.technical-page,.sources-page{padding-top:64px;padding-bottom:88px}.timeline-item{grid-template-columns:1fr;gap:16px}.timeline-status{grid-column:1}.fact-row{grid-template-columns:1fr;gap:8px}.download-card{flex-direction:column;align-items:stretch}.term-grid,.policy-grid{grid-template-columns:1fr}.source-links a{grid-template-columns:34px 1fr;gap:14px}.source-links b{display:none}.plain-list{columns:1}.footer-grid{grid-template-columns:1fr;padding-bottom:44px}.footer-bottom{flex-direction:column}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}