:root{--paper: #fbf9f6;--paper-2: #f4f0ea;--paper-3: #ece6dd;--card: #ffffff;--ink: #17130f;--ink-2: #3d3630;--muted: #726858;--rule: #e3dcd1;--btc: #f7931a;--btc-deep: #d97906;--btc-wash: #fdf0dc;--btc-glow: rgba(247, 147, 26, .22);--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 rgba(23, 19, 15, .06);--shadow: 0 4px 16px rgba(23, 19, 15, .08);--shadow-lg: 0 24px 60px -12px rgba(23, 19, 15, .22);--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{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}h1,h2,h3,h4{margin:0 0 .5em;line-height:1.1;letter-spacing:-.022em;font-weight:780;text-wrap:balance}h1{font-size:clamp(2.6rem,6vw,4.3rem);letter-spacing:-.035em}h2{font-size:clamp(1.9rem,3.6vw,2.7rem);letter-spacing:-.028em}h3{font-size:1.22rem;letter-spacing:-.015em}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{font-weight:680;color:var(--ink)}.lede{font-size:clamp(1.1rem,1.9vw,1.32rem);line-height:1.55;color:var(--ink-2);max-width:60ch}.eyebrow{font-family:var(--mono);font-size:.74rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--btc-deep);margin:0 0 1rem}.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{display:grid;gap:clamp(1.4rem,3vw,2.4rem)}.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{display:inline-flex;align-items:center;gap:.5rem;padding:.82rem 1.5rem;border-radius:var(--radius);font-weight:640;font-size:1rem;border:1.5px solid transparent;cursor:pointer;transition:transform .14s ease,box-shadow .14s ease,background .14s ease;text-decoration:none;white-space:nowrap}.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{background:#ffa32e;box-shadow:0 2px 0 var(--btc-deep),0 12px 30px -8px var(--btc-glow)}.btn-ghost{background:transparent;color:var(--ink);border-color:var(--rule)}.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{display:flex;flex-wrap:wrap;gap:.8rem;align-items:center}.card{background:var(--card);border:1px solid var(--rule);border-radius:var(--radius-lg);padding:clamp(1.4rem,2.6vw,1.9rem);box-shadow:var(--shadow-sm)}.card-link{display:block;color:inherit;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}.card-link:hover{text-decoration:none;transform:translateY(-2px);border-color:var(--btc);box-shadow:var(--shadow)}.card-link .arrow{color:var(--btc-deep);transition:transform .15s ease;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);font-size:.85em;background:var(--paper-3);border:1px solid var(--rule);border-radius:4px;padding:.08em .36em}img{max-width:100%;height:auto;display:block}.scroll-x{overflow-x:auto;max-width:100%}.band-night .frame{border-color:#ffffff29;box-shadow:0 0 0 1px #ffffff0f,0 26px 70px -14px #000000bf,0 0 90px -24px var(--btc-glow)}@media(prefers-reduced-motion:no-preference){html.js .reveal{opacity:0;transform:translateY(18px)}html.js .reveal.in{opacity:1;transform:translateY(0);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.3,1)}}.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:.7rem 1.1rem;z-index:100;border-radius:0 0 var(--radius) 0}.skip-link:focus{left:0}:focus-visible{outline:2.5px solid var(--btc-deep);outline-offset:2px;border-radius:3px}