:root {
  --paper: #fafaf7; --ink: #101828; --muted: #505a6b; --line: #d9dee8;
  --lapis: #1f3fa8; --lapis-ink: #ffffff; --gold: #b8912f;
  --sans: "IBM Plex Sans", "IBM Plex Sans Arabic", system-ui, -apple-system, "Segoe UI", Tahoma, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --paper: #0d1320; --ink: #eef1f7; --muted: #aab3c5; --line: #26304a;
          --lapis: #8fa8ff; --lapis-ink: #0d1320; --gold: #d6b252; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 1.0625rem/1.65 var(--sans); }
a { color: var(--lapis); text-underline-offset: 3px; }
a:focus-visible, .button:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; }
.wrap { max-width: 860px; margin: 0 auto; padding: 0 1.25rem; }
header { border-bottom: 1px solid var(--line); }
header .wrap { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: .5rem 2rem; padding-top: 1.1rem; padding-bottom: 1.1rem; }
.brand { font-weight: 600; font-size: 1.15rem; color: var(--ink); text-decoration: none; }
nav { display: flex; flex-wrap: wrap; gap: .25rem 1.4rem; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--ink); text-decoration: underline; }
.hero { padding: clamp(3rem, 9vw, 6.5rem) 0 clamp(2.5rem, 6vw, 4.5rem); border-bottom: 4px solid var(--lapis); }
h1 { font-weight: 600; font-size: clamp(2.2rem, 6.4vw, 4rem); line-height: 1.08; letter-spacing: -.02em; margin: 0 0 1.4rem; max-width: 15ch; }
.lead { font-size: clamp(1.1rem, 2.3vw, 1.3rem); color: var(--muted); max-width: 40rem; margin: 0 0 2rem; }
.button { display: inline-block; background: var(--lapis); color: var(--lapis-ink); padding: .8rem 1.4rem; border-radius: 4px; font-weight: 600; text-decoration: none; }
.button:hover { filter: brightness(1.1); }
section { padding: clamp(2.2rem, 5vw, 3.4rem) 0; border-bottom: 1px solid var(--line); }
h2 { font-weight: 600; font-size: 1.55rem; line-height: 1.2; margin: 0 0 1.2rem; }
h3 { font-weight: 600; font-size: 1.05rem; margin: 1.6rem 0 .3rem; }
p { margin: 0 0 1rem; max-width: 42rem; }
.rows { margin: 0; }
.row { display: grid; grid-template-columns: minmax(10rem, 14rem) 1fr; gap: .3rem 2rem; padding: 1.1rem 0; border-top: 1px solid var(--line); }
.row:last-child { border-bottom: 1px solid var(--line); }
.row dt { font-weight: 600; }
.row dd { margin: 0; color: var(--muted); max-width: 36rem; }
ul.plain { padding-left: 1.2rem; max-width: 42rem; margin: 0 0 1rem; }
ul.plain li { margin-bottom: .45rem; }
.ar { direction: rtl; text-align: right; border-right: 3px solid var(--gold); padding-right: 1rem; max-width: 42rem; margin-top: 1.6rem; }
.ar p { margin: 0; }
footer { padding: 2rem 0 3rem; color: var(--muted); font-size: .95rem; }
footer .wrap { display: flex; flex-wrap: wrap; gap: .4rem 2rem; justify-content: space-between; }
.doc h1 { font-size: clamp(1.9rem, 5vw, 2.7rem); max-width: none; margin-top: 2.5rem; }
.doc section { border: 0; padding: 0; }
.doc .updated { color: var(--muted); margin-bottom: 2rem; }
@media (max-width: 620px) { .row { grid-template-columns: 1fr; } }