:root{--paper:#fbf9f6;--paper-2:#f4f0ea;--paper-3:#ece6dd;--card:#fff;--ink:#17130f;--ink-2:#3d3630;--muted:#726858;--rule:#e3dcd1;--btc:#f7931a;--btc-deep:#d97906;--btc-wash:#fdf0dc;--btc-glow:#f7931a38;--jade:#0fae8c;--jade-deep:#0a8c70;--jade-wash:#e2f7f1;--night:#0d0f17;--night-2:#13161f;--night-3:#1c2030;--night-rule:#252840;--night-ink:#dde1f0;--night-muted:#7d84a8;--measure:68ch;--radius:10px;--radius-lg:16px;--shadow-sm:0 1px 2px #17130f0f;--shadow:0 4px 16px #17130f14;--shadow-lg:0 24px 60px -12px #17130f38;--font:ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--mono:ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace}*,:before,:after{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{background:var(--paper);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;margin:0;font-size:17px;line-height:1.65}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}h1,h2,h3,h4{letter-spacing:-.022em;text-wrap:balance;margin:0 0 .5em;font-weight:780;line-height:1.1}h1{letter-spacing:-.035em;font-size:clamp(2.6rem,6vw,4.3rem)}h2{letter-spacing:-.028em;font-size:clamp(1.9rem,3.6vw,2.7rem)}h3{letter-spacing:-.015em;font-size:1.22rem}p{margin:0 0 1.1em}p:last-child{margin-bottom:0}a{color:var(--btc-deep);text-decoration:none}a:hover{text-decoration:underline}strong{color:var(--ink);font-weight:680}.lede{color:var(--ink-2);max-width:60ch;font-size:clamp(1.1rem,1.9vw,1.32rem);line-height:1.55}.eyebrow{font-family:var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--btc-deep);margin:0 0 1rem;font-size:.74rem;font-weight:600}.muted{color:var(--muted)}.tnum{font-variant-numeric:tabular-nums;font-family:var(--mono)}.wrap{width:100%;max-width:1180px;margin-inline:auto;padding-inline:clamp(1.1rem,4vw,2.5rem)}.wrap-narrow{max-width:780px}section{padding-block:clamp(3.5rem,8vw,6.5rem)}.band-warm{background:var(--paper-2)}.band-night{background:var(--night);color:var(--night-ink)}.band-night h1,.band-night h2,.band-night h3{color:#fff}.band-night .lede,.band-night .muted{color:var(--night-muted)}.band-night a{color:var(--btc)}.grid{gap:clamp(1.4rem,3vw,2.4rem);display:grid}.grid-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.grid-3{grid-template-columns:repeat(auto-fit,minmax(255px,1fr))}.stack-lg>*+*{margin-top:clamp(3rem,7vw,5.5rem)}.btn{border-radius:var(--radius);cursor:pointer;white-space:nowrap;border:1.5px solid #0000;align-items:center;gap:.5rem;padding:.82rem 1.5rem;font-size:1rem;font-weight:640;text-decoration:none;transition:transform .14s,box-shadow .14s,background .14s;display:inline-flex}.btn:hover{text-decoration:none;transform:translateY(-1px)}.btn-primary{background:var(--btc);color:#2a1704;box-shadow:0 2px 0 var(--btc-deep), 0 8px 24px -8px var(--btc-glow)}.btn-primary:hover{box-shadow:0 2px 0 var(--btc-deep), 0 12px 30px -8px var(--btc-glow);background:#ffa32e}.btn-ghost{color:var(--ink);border-color:var(--rule);background:0 0}.btn-ghost:hover{border-color:var(--ink-2);background:var(--card)}.band-night .btn-ghost{color:var(--night-ink);border-color:var(--night-rule)}.band-night .btn-ghost:hover{background:var(--night-2);border-color:var(--night-muted)}.btn-row{flex-wrap:wrap;align-items:center;gap:.8rem;display:flex}.card{background:var(--card);border:1px solid var(--rule);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:clamp(1.4rem,2.6vw,1.9rem)}.card-link{color:inherit;transition:transform .15s,box-shadow .15s,border-color .15s;display:block}.card-link:hover{border-color:var(--btc);box-shadow:var(--shadow);text-decoration:none;transform:translateY(-2px)}.card-link .arrow{color:var(--btc-deep);transition:transform .15s;display:inline-block}.card-link:hover .arrow{transform:translate(3px)}hr{border:0;border-top:1px solid var(--rule);margin:3rem 0}code{font-family:var(--mono);background:var(--paper-3);border:1px solid var(--rule);border-radius:4px;padding:.08em .36em;font-size:.85em}img{max-width:100%;height:auto;display:block}.scroll-x{max-width:100%;overflow-x:auto}.band-night .frame{box-shadow:0 0 0 1px #ffffff0f, 0 26px 70px -14px #000000bf, 0 0 90px -24px var(--btc-glow);border-color:#ffffff29}@media (prefers-reduced-motion:no-preference){html.js .reveal{opacity:0;transform:translateY(18px)}html.js .reveal.in{opacity:1;transition:opacity .7s,transform .7s cubic-bezier(.2,.7,.3,1);transform:translateY(0)}}.skip-link{background:var(--ink);color:#fff;z-index:100;border-radius:0 0 var(--radius) 0;padding:.7rem 1.1rem;position:absolute;top:0;left:-9999px}.skip-link:focus{left:0}:focus-visible{outline:2.5px solid var(--btc-deep);outline-offset:2px;border-radius:3px}