:root{
  --bg:#020708;--bg2:#061113;--surface:#0B1A1D;--surface-low:#071315;--surface-high:#0F2225;
  --ink:#FFFFFF;--muted:#A3B4B6;--dim:#5a6e71;--line:rgba(255,255,255,.08);
  --primary:#087C5F;--primary-light:#2FBF94;--accent:#8FD9F0;
  --paper:#F2F7F5;--paper-ink:#102224;--paper-muted:#43595B;--paper-line:rgba(16,34,36,.14);
  --font-heading:"Sora",-apple-system,"PingFang SC","Hiragino Sans GB","Hiragino Kaku Gothic ProN","Microsoft YaHei","Malgun Gothic",sans-serif;
  --font-body:"Inter",-apple-system,"PingFang SC","Hiragino Sans GB","Hiragino Kaku Gothic ProN","Microsoft YaHei","Malgun Gothic",sans-serif;
  --font-mono:"JetBrains Mono","SF Mono",ui-monospace,Menlo,Consolas,monospace;
  --text-xs:.75rem;--text-sm:.875rem;--text-base:1rem;--text-lg:1.125rem;--text-card:1.25rem;--text-section:2.25rem;--text-display:3.5rem;
  --leading-tight:1.25;--leading-body:1.7;--leading-reading:1.8;
  --space-1:.5rem;--space-2:1rem;--space-3:1.5rem;--space-4:2rem;--space-5:2.5rem;--space-6:4rem;--space-7:6rem;--space-section:13.75rem;
  --radius-sm:.75rem;--radius-md:1.25rem;--radius-lg:1.75rem;--radius-pill:999px;
  --shadow-stage:0 -24px 90px rgba(8,124,95,.2),0 60px 140px rgba(0,0,0,.7);
  --gutter:1.5rem;--container-narrow:46rem;--container-standard:70rem;--container-wide:77.5rem;
  --hero-top:8rem;--hero-crumb-top:3rem;--motion:200ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:auto}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:var(--text-base);line-height:var(--leading-body);-webkit-font-smoothing:antialiased}
main{overflow-x:clip}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%}
img{display:block}
:where(h1,h2,h3,h4,h5,h6,p,blockquote,figure,dl){margin-top:0}
h1{font-family:var(--font-heading);font-size:clamp(2.4rem,5vw,var(--text-display));line-height:var(--leading-tight);font-weight:700;letter-spacing:-.043em}
h2{font-family:var(--font-heading);font-size:clamp(1.85rem,3vw,var(--text-section));line-height:1.28;font-weight:700;letter-spacing:-.033em}
h3{font-family:var(--font-heading);font-size:var(--text-card);line-height:1.4;font-weight:600;letter-spacing:-.025em}
h4{font-family:var(--font-heading);font-size:var(--text-base);line-height:1.5;font-weight:600}
h5{font-family:var(--font-heading);font-size:var(--text-sm);line-height:1.5;font-weight:600}
h6{font-family:var(--font-heading);font-size:var(--text-xs);line-height:1.5;font-weight:600}
p{font-size:var(--text-base);line-height:var(--leading-body)}
li{font-size:var(--text-base);line-height:var(--leading-body)}
small{font-size:var(--text-xs);line-height:1.5}
figcaption{font-size:var(--text-sm);line-height:1.6}
blockquote{font-size:var(--text-lg);line-height:1.75}
code{font-family:var(--font-mono);font-size:var(--text-sm);line-height:1.6}
th,td{font-size:var(--text-sm);line-height:1.65}
dt,dd{font-size:var(--text-sm);line-height:1.6}
label{font-size:var(--text-sm);line-height:1.5}
:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
.container,.wrap{width:min(calc(100% - var(--gutter)*2),var(--container-standard));margin-inline:auto}
.container-narrow{width:min(calc(100% - var(--gutter)*2),var(--container-narrow));margin-inline:auto}
.container-wide{width:min(calc(100% - var(--gutter)*2),var(--container-wide));margin-inline:auto}
.grid-two,.grid-three{display:grid;gap:var(--space-3);align-items:stretch}
.grid-two{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-three{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-two>*,.grid-three>*{min-width:0}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.muted{color:var(--muted)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.stack-2>*+*{margin-top:var(--space-2)}
.stack-3>*+*{margin-top:var(--space-3)}
.reading{max-width:var(--container-narrow);font-size:var(--text-base);line-height:var(--leading-reading)}
.reading :is(h2,h3){font-size:clamp(1.3rem,2vw,1.6rem);line-height:1.4}
.reading :is(p,ul,ol,blockquote,pre){margin-block:0 var(--space-3)}
.reading :is(ul,ol){padding-inline-start:1.5rem}
.reading :is(h2,h3){margin-block:var(--space-5) var(--space-2)}
.reading :is(pre,code){overflow-x:auto}
pre{max-width:100%;overflow-x:auto;padding:var(--space-3);border-radius:var(--radius-md);background:var(--surface-low)}
@media(max-width:64rem){
  :root{--space-section:8rem}
  .grid-three{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:42rem){
  :root{--gutter:1.25rem;--space-section:6rem}
  .grid-two,.grid-three{grid-template-columns:minmax(0,1fr)}
}