@font-face{font-family:"Bricolage Grotesque";src:url(/fonts/bricolage-latin.woff2) format("woff2");font-weight:200 800;font-stretch:75% 100%;font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
:root{
  --bg:#F2EADB;--paper:#FFFBF2;--ink:#171A2E;--muted:#4D5068;--line:#E0D5BF;--rule:#EBE2D0;
  --sq:#2E5BBA;--sq-ink:#234A9C;--num:#C7361F;--hi:#F6D683;--brand-2:#2E5BBA;
  --band:radial-gradient(820px 560px at 84% 14%,rgb(46 91 186 / .55) 0%,transparent 70%),radial-gradient(620px 460px at 4% 112%,rgb(232 69 44 / .38) 0%,transparent 70%),linear-gradient(180deg,#1D2340,#12152A);
  --shadow:0 30px 60px -34px rgb(23 26 46 / .38);
  --display:"Bricolage Grotesque","Segoe UI Variable Display","Segoe UI",system-ui,sans-serif;
  --text:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --ease:cubic-bezier(.2,.7,.2,1);
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0F1120;--paper:#171A2E;--ink:#F2EADB;--muted:#B4B0A4;--line:#2A2E48;--rule:#22253D;
  --sq:#8FB0F0;--sq-ink:#A9C4F7;--num:#FF8E78;--brand-2:#F6D683;--shadow:0 30px 60px -30px rgb(0 0 0 / .8);
}}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:84px}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.65 var(--text);-webkit-font-smoothing:antialiased;overflow-x:clip}
img,svg{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{font-family:var(--display);font-weight:800;letter-spacing:-.03em;line-height:1.02;margin:0;text-wrap:balance}
p{margin:0}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 clamp(16px,4vw,28px)}
.skip{position:absolute;left:12px;top:-60px;z-index:100;background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:10px;font-weight:600}
.skip:focus{top:12px}
:focus-visible{outline:3px solid var(--brand-2);outline-offset:3px;border-radius:6px}

/* header (over the dark band) */
.site-head{position:sticky;top:0;z-index:50;color:#fff;transition:background .25s,box-shadow .25s}
.site-head.scrolled{background:rgb(18 21 42 / .86);-webkit-backdrop-filter:saturate(1.4) blur(14px);backdrop-filter:saturate(1.4) blur(14px);box-shadow:0 1px 0 rgb(246 214 131 / .18)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px}
.logo{display:flex;align-items:center;color:inherit;text-decoration:none}
.logo svg{height:32px;width:auto}
.nav{display:flex;align-items:center;gap:clamp(12px,2.4vw,28px);list-style:none;margin:0;padding:0;font-size:15px;font-weight:500}
.nav a{text-decoration:none;color:#DAD5C9}
.nav a:hover,.nav a[aria-current=page]{color:#fff}
.nav a[aria-current=page]{text-decoration:underline;text-decoration-color:var(--hi);text-decoration-thickness:2px;text-underline-offset:6px}
.site-head :focus-visible{outline-color:var(--hi)}
@media (max-width:640px){.nav .opt{display:none}.site-head .logo{width:66px;overflow:hidden}.site-head .logo svg{flex:none;width:153px;max-width:none}.nav{font-size:14px}}

/* band */
.band{position:relative;isolation:isolate;overflow:hidden;color:#fff;background:var(--band);margin-top:-68px;padding:calc(68px + clamp(40px,7vw,88px)) 0 clamp(48px,7vw,84px)}
.band::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background:linear-gradient(rgb(246 214 131 / .07) 1px,transparent 1px) 0 0/40px 40px,linear-gradient(90deg,rgb(246 214 131 / .07) 1px,transparent 1px) 0 0/40px 40px;-webkit-mask-image:radial-gradient(ellipse 75% 85% at 70% 35%,#000 15%,transparent 75%);mask-image:radial-gradient(ellipse 75% 85% at 70% 35%,#000 15%,transparent 75%)}
.band::after{content:"";position:absolute;z-index:-1;top:0;bottom:0;left:clamp(16px,9vw,140px);width:1px;background:linear-gradient(180deg,transparent,rgb(232 69 44 / .5) 30%,rgb(232 69 44 / .5) 70%,transparent)}
.chip{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--hi);border:1px solid rgb(246 214 131 / .35);border-radius:999px;padding:7px 14px 7px 8px;background:rgb(255 255 255 / .04)}
.chip .mark{width:22px;height:22px;flex:none}
.band h1{font-size:clamp(46px,8vw,112px);margin:22px 0 18px}
.band .lede{font-size:clamp(17px,1.6vw,21px);color:#DAD5C9;max-width:640px}
.band .meta{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:#BFBAAE}
.band .meta strong{color:#fff;font-weight:600}
.langs{display:inline-flex;gap:4px;padding:4px;border-radius:999px;background:rgb(255 255 255 / .06);border:1px solid rgb(255 255 255 / .12)}
.langs a{padding:4px 12px;border-radius:999px;text-decoration:none;color:#DAD5C9;font-weight:600;font-size:13px}
.langs a:hover{color:#fff;background:rgb(255 255 255 / .08)}

/* at a glance */
.glance{margin-top:clamp(32px,5vw,52px);display:grid;grid-template-columns:repeat(4,1fr);gap:14px;list-style:none;padding:0}
.glance li{padding:18px 18px 20px;border-radius:18px;background:rgb(255 255 255 / .05);border:1px solid rgb(246 214 131 / .18);font-size:15px;color:#DAD5C9;line-height:1.45}
.glance strong{display:block;font-family:var(--display);font-size:19px;letter-spacing:-.02em;color:#fff;margin-bottom:6px;line-height:1.15}
@media (max-width:980px){.glance{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.glance{grid-template-columns:1fr}}

/* document layout */
.doc{padding:clamp(40px,6vw,80px) 0 clamp(64px,8vw,110px)}
.doc .grid{display:grid;grid-template-columns:250px minmax(0,1fr);gap:clamp(28px,5vw,72px);align-items:start}
.toc{position:sticky;top:92px;font-size:14px}
.toc h2{font-family:var(--text);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-weight:700;margin-bottom:12px}
.toc ol{list-style:none;margin:0;padding:0;display:grid;gap:2px;counter-reset:t;border-left:1px solid var(--line)}
.toc a{display:block;padding:5px 0 5px 14px;margin-left:-1px;border-left:2px solid transparent;text-decoration:none;color:var(--muted);line-height:1.35}
.toc a:hover{color:var(--ink)}
.toc a.on{color:var(--sq-ink);border-left-color:var(--sq);font-weight:600}
.paper{background:var(--paper);border:1px solid var(--line);border-radius:28px;padding:clamp(24px,5vw,64px);box-shadow:var(--shadow);min-width:0}
.paper section{padding-top:8px}
.paper section+section{margin-top:clamp(36px,4vw,48px);padding-top:clamp(36px,4vw,48px);border-top:1px solid var(--rule)}
.paper h2{font-size:clamp(26px,2.6vw,34px);margin-bottom:16px;display:flex;gap:14px;align-items:baseline}
.paper h2 .n{font-size:.62em;color:var(--num);font-weight:700;letter-spacing:0;min-width:1.6em;font-variant-numeric:tabular-nums}
.paper h3{font-size:20px;letter-spacing:-.015em;margin:26px 0 8px}
.paper p+p,.paper p+ul,.paper ul+p,.paper .tbl+p,.paper p+.tbl,.paper p+.note,.paper .note+p{margin-top:14px}
.paper ul{margin:12px 0 0;padding-left:22px}
.paper li+li{margin-top:8px}
.paper li::marker{color:var(--num)}
.paper a{color:var(--sq-ink);text-underline-offset:3px;font-weight:500}
.paper strong{font-weight:650}
.note{border-left:3px solid var(--sq);background:color-mix(in srgb,var(--sq) 7%,transparent);padding:14px 18px;border-radius:0 12px 12px 0;font-size:16px}
.tbl{overflow-x:auto;margin-top:16px;border:1px solid var(--line);border-radius:16px}
.tbl table{border-collapse:collapse;width:100%;min-width:560px;font-size:15px;line-height:1.5}
.tbl th,.tbl td{text-align:left;vertical-align:top;padding:12px 14px;border-bottom:1px solid var(--rule)}
.tbl tr:last-child td{border-bottom:0}
.tbl th{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);background:color-mix(in srgb,var(--sq) 5%,transparent)}
.tbl td:first-child{font-weight:650;white-space:nowrap}
.lang-split{margin-top:clamp(56px,7vw,88px);display:flex;align-items:center;gap:16px;font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--sq)}
.lang-split::before,.lang-split::after{content:"";height:1px;flex:1;background:var(--line)}
.bg-head{margin:clamp(28px,4vw,40px) 0 clamp(20px,3vw,28px)}
.bg-head h2{font-size:clamp(34px,4.4vw,56px)}
.bg-head p{color:var(--muted);margin-top:10px}
@media (max-width:900px){.doc .grid{grid-template-columns:1fr}.toc{position:static}.toc details{border:1px solid var(--line);border-radius:16px;padding:12px 16px;background:var(--paper)}}
.toc summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between}
.toc summary::-webkit-details-marker{display:none}
.toc summary::after{content:"+";color:var(--sq);font-size:20px;line-height:1}
.toc details[open] summary::after{content:"\2212"}
@media (min-width:901px){.toc summary{display:none}}
.toc details>ol{margin-top:10px}
.back{display:inline-flex;margin-top:28px;font-size:15px;font-weight:600;color:var(--sq-ink);text-underline-offset:4px}

/* footer */
.foot{background:var(--paper);border-top:1px solid var(--line);padding:44px 0 36px;font-size:15px;color:var(--muted)}
.foot .row{display:flex;justify-content:space-between;gap:28px;flex-wrap:wrap;align-items:flex-start}
.foot .logo{color:var(--ink);margin-bottom:10px}
.foot ul{list-style:none;margin:0;padding:0;display:flex;gap:10px 22px;flex-wrap:wrap}
.foot a{text-underline-offset:3px}
.foot a:hover{color:var(--ink)}
.foot .legal{margin-top:28px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;display:grid;gap:4px}

/* motion */
@media (prefers-reduced-motion:no-preference){
  .js .rise{opacity:0;transform:translateY(16px);animation:rise .8s var(--ease) forwards}
  .js .rise.d1{animation-delay:.08s}.js .rise.d2{animation-delay:.16s}.js .rise.d3{animation-delay:.24s}.js .rise.d4{animation-delay:.32s}
  .js .reveal{opacity:0;transform:translateY(24px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
  .js .reveal.in{opacity:1;transform:none}
  @keyframes rise{to{opacity:1;transform:none}}
  @keyframes fade{from{opacity:0}}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}
@media print{.site-head,.toc,.foot,.langs{display:none}.band{background:none;color:#000;margin:0;padding:0}.band .lede,.band .meta{color:#000}.paper{box-shadow:none;border:0;padding:0}.glance li{color:#000;border-color:#ccc}.glance strong{color:#000}}
@media (max-width:900px){.band::after{display:none}}
.doc .grid>*{min-width:0}