:root{--paper:#F3EFE6;--sheet:#FBF9F4;--ink:#141414;--muted:#6E695F;--rule:#D8D2C5;--green:#0F7A5C;--code:#EBE6DA}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;color-scheme:light}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.65 'IBM Plex Sans',system-ui,sans-serif}
body[dir=rtl]{font-family:'IBM Plex Sans Arabic','IBM Plex Sans',system-ui,sans-serif}
a{color:var(--green);text-underline-offset:3px}
.wrap{max-width:1000px;margin:0 auto;padding:0 16px}
header.top .wrap{display:flex;align-items:baseline;gap:24px;padding-top:22px;padding-bottom:22px;flex-wrap:wrap}
header.top .brand{text-decoration:none;color:var(--ink);font-family:'EB Garamond',Georgia,serif;font-size:24px;font-weight:500}
header.top .brand .ar{font-family:'Amiri',serif;color:var(--green);margin-inline-start:8px;font-size:22px}
body[dir=rtl] header.top .brand{font-family:'Amiri',serif;font-size:26px;color:var(--green)}
header.top nav{display:flex;gap:20px;flex-wrap:wrap;margin-inline-start:auto;font-size:15px}
header.top nav a{color:var(--muted);text-decoration:none}
header.top nav a:hover{color:var(--ink)}
main{padding:24px 0 72px}
h1{font-family:'EB Garamond',Georgia,serif;font-weight:500;font-size:clamp(36px,6vw,56px);line-height:1.08;margin:0 0 20px;letter-spacing:-.01em}
h2{font-family:'EB Garamond',Georgia,serif;font-weight:500;font-size:clamp(26px,4vw,34px);line-height:1.2;margin:64px 0 16px}
h3{font-size:18px;margin:24px 0 6px}
body[dir=rtl] h1,body[dir=rtl] h2{font-family:'Amiri',serif;font-weight:700;letter-spacing:0;line-height:1.4}
.lead{font-size:19px;color:var(--muted);max-width:680px;margin:0 0 24px}
.kicker{font-size:14px;color:var(--muted);margin:0 0 12px}
.go{display:flex;gap:22px;align-items:center;flex-wrap:wrap;margin:8px 0 0;font-weight:600}
.go .main{background:var(--ink);color:var(--paper);padding:11px 20px;border-radius:6px;text-decoration:none}
bdi{white-space:nowrap}
.hero{display:grid;grid-template-columns:1fr;gap:40px;align-items:start}
@media (min-width:900px){.hero{grid-template-columns:1fr 1fr}}
figure{margin:0}
.proof{background:var(--sheet);border:1px solid var(--rule)}
.proof img{display:block;width:100%;height:auto;border-bottom:1px solid var(--rule)}
.proof .out{padding:6px 20px 18px;direction:rtl;text-align:right;font-family:'Amiri',serif;font-size:19px;line-height:1.95}
.proof .tag{display:block;font:600 12px/1 'IBM Plex Sans',sans-serif;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding:14px 20px 4px}
body[dir=rtl] .proof .tag{letter-spacing:0;font-family:'IBM Plex Sans Arabic',sans-serif;font-size:13px}
.proof mark{background:none;color:var(--green);border-bottom:2px solid var(--green)}
figcaption{font-size:14px;color:var(--muted);margin-top:10px}
.nums{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:0 32px;margin:56px 0 0;border-top:1px solid var(--ink)}
.nums div{padding:16px 0;border-bottom:1px solid var(--rule)}
.nums b{display:block;font-family:'EB Garamond',Georgia,serif;font-weight:500;font-size:44px;line-height:1.05}
.nums span{color:var(--muted);font-size:15px}
ul.plain{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:0 32px;border-top:1px solid var(--ink)}
ul.plain li{padding:12px 0;border-bottom:1px solid var(--rule)}
ul.plain li b{display:block}
ul.plain li span{color:var(--muted);font-size:15px}
.tbl{overflow-x:auto;margin:16px 0}
table{border-collapse:collapse;width:100%;font-size:15px;border-top:1px solid var(--ink)}
th,td{padding:10px 16px 10px 0;text-align:start;border-bottom:1px solid var(--rule);white-space:nowrap}
body[dir=rtl] th,body[dir=rtl] td{padding:10px 0 10px 16px}
th{font-weight:600;color:var(--muted);font-size:14px}
tr.us td{font-weight:600}
tr.us td:first-child{color:var(--green)}
td.n{font-variant-numeric:tabular-nums}
pre{background:var(--code);padding:14px 16px;overflow-x:auto;font-size:14px;line-height:1.55;direction:ltr;text-align:left;border-radius:4px}
code{font-family:'IBM Plex Mono',ui-monospace,monospace;font-size:.92em}
p code,li code{background:var(--code);padding:1px 5px;border-radius:3px}
details{border-bottom:1px solid var(--rule);padding:14px 0}
details:first-of-type{border-top:1px solid var(--ink)}
summary{font-weight:600;cursor:pointer}
details p{margin:8px 0 0;color:var(--muted)}
.note{color:var(--muted);font-size:14px}
.ar-text{font-family:'Amiri',serif;font-size:1.4em}
footer{border-top:1px solid var(--rule);padding:28px 0;color:var(--muted);font-size:14px}
footer a{color:var(--muted)}
@media (max-width:600px){body{font-size:16px}header.top nav{margin-inline-start:0;width:100%}th,td{white-space:normal}td:first-child{min-width:130px}}
body[dir=rtl] .nums b{text-align:right}