/* Article pages — same palette and type system as the landing page. */
:root{--accent:#001AFF;--ink:#ECF0FF;--rule:rgba(236,240,255,.24);--dim:rgba(236,240,255,.62)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--accent);color:var(--ink);
  font-family:'Vazirmatn',system-ui,sans-serif;font-size:16px;line-height:1.9;
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
::selection{background:var(--ink);color:var(--accent)}

/* header */
.hdr{position:sticky;top:0;z-index:50;background:var(--accent);border-bottom:1px solid var(--rule)}
.hdr nav{display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:16px clamp(20px,4vw,56px);max-width:1180px;margin:0 auto}
.logo{display:flex;flex-direction:column;align-items:flex-start;gap:3px}
.lg{font-family:'Bodoni Moda',serif;font-weight:700;font-size:22px;letter-spacing:.1em}
.lgfa{font-size:10.5px;opacity:.6}
.navlinks{display:flex;align-items:center;gap:clamp(14px,2.2vw,28px);flex-wrap:wrap;
  font-size:13px;letter-spacing:.02em}
.navlinks a{transition:opacity .25s}
.navlinks a:hover{opacity:.6}
.cta{border:1px solid var(--ink);padding:8px 16px;font-size:12px;letter-spacing:.06em}
.cta:hover{background:var(--ink);color:var(--accent);opacity:1}

/* shared page frame */
main{max-width:760px;margin:0 auto;padding:clamp(36px,6vw,72px) clamp(20px,5vw,40px) 80px}
.kicker{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.2em;
  text-transform:uppercase;opacity:.65;margin:0 0 14px;direction:ltr;text-align:right}
h1{font-family:'Vazirmatn',sans-serif;font-weight:800;line-height:1.35;
  font-size:clamp(28px,5vw,44px);margin:0 0 20px;letter-spacing:-.01em}
.lede{font-size:clamp(16px,2vw,19px);opacity:.8;margin:0 0 22px;line-height:1.85}
.crumb{font-size:12px;opacity:.6;margin-bottom:26px}
.crumb a:hover{opacity:.7;text-decoration:underline}
.crumb span{margin:0 6px}
.meta{font-family:'Vazirmatn',sans-serif;font-size:11.5px;opacity:.55;
  padding-bottom:26px;border-bottom:1px solid var(--rule);margin-bottom:34px;direction:rtl}

/* article body */
.body{font-size:16.5px}
.body h2{font-size:clamp(20px,3vw,27px);font-weight:700;line-height:1.5;
  margin:46px 0 16px;padding-top:6px}
.body h3{font-size:clamp(17px,2.2vw,20px);font-weight:600;margin:32px 0 12px;opacity:.94}
.body p{margin:0 0 20px}
.body ul,.body ol{margin:0 0 22px;padding-inline-start:22px}
.body li{margin-bottom:10px}
.body strong{font-weight:700}
.body a{text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--dim)}
.body a:hover{text-decoration-color:var(--ink)}
.body code{font-family:'IBM Plex Mono',monospace;font-size:.87em;
  background:rgba(236,240,255,.12);padding:2px 6px;border-radius:3px}
.body pre{background:rgba(0,0,0,.28);border:1px solid var(--rule);padding:16px 18px;
  overflow-x:auto;margin:0 0 24px;font-size:13px;line-height:1.7}
.body pre code{background:none;padding:0;font-size:13px}
.body blockquote{margin:0 0 24px;padding:2px 20px;border-inline-start:2px solid var(--ink);opacity:.85}
.body blockquote p{margin:0}
.tw{overflow-x:auto;margin:0 0 26px}
.body table{border-collapse:collapse;width:100%;font-size:14px;min-width:420px}
.body th,.body td{border-bottom:1px solid var(--rule);padding:11px 12px;text-align:right}
.body th{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.1em;
  text-transform:uppercase;opacity:.7;font-weight:400}

/* index list */
.list{list-style:none;margin:34px 0 0;padding:0;counter-reset:none}
.list li{border-top:1px solid var(--rule)}
.list li:last-child{border-bottom:1px solid var(--rule)}
.list a{display:grid;grid-template-columns:auto 1fr;gap:4px 18px;padding:24px 4px;
  align-items:baseline;transition:opacity .25s,padding .25s}
.list a:hover{opacity:.62;padding-inline-start:10px}
.num{font-family:'Bodoni Moda',serif;font-size:24px;opacity:.5;grid-row:span 2}
.t{font-size:clamp(17px,2.4vw,21px);font-weight:700;line-height:1.5}
.d{font-size:14px;opacity:.62;line-height:1.75;grid-column:2}

/* related */
.more{margin-top:64px;padding-top:32px;border-top:1px solid var(--rule)}
.more h2{font-size:15px;font-family:'IBM Plex Mono',monospace;letter-spacing:.14em;
  text-transform:uppercase;opacity:.6;font-weight:400;margin:0 0 18px}
.more ul{list-style:none;margin:0;padding:0;
  display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:10px 28px}
.more li{padding:9px 0;border-bottom:1px solid var(--rule)}
.more a{font-size:14.5px;line-height:1.65;transition:opacity .25s}
.more a:hover{opacity:.62}

/* footer */
.ftr{border-top:1px solid var(--rule);padding:48px clamp(20px,5vw,40px)}
.fin{max-width:760px;margin:0 auto}
.flogo{font-family:'Bodoni Moda',serif;font-weight:700;font-size:20px;letter-spacing:.1em}
.ftr p{font-size:14px;opacity:.66;margin:14px 0 20px;max-width:52ch}
.flinks{display:flex;gap:22px;flex-wrap:wrap;font-size:13.5px}
.flinks a{opacity:.8;transition:opacity .25s}
.flinks a:hover{opacity:1;text-decoration:underline}
.cr{font-family:'IBM Plex Mono',monospace;font-size:11.5px;opacity:.42;margin:26px 0 0}

@media(max-width:640px){
  .hdr nav{flex-direction:column;align-items:center;gap:12px;padding:12px 16px 14px}
  .hdr{position:static}
  .navlinks{justify-content:center}
  .list a{grid-template-columns:1fr;gap:6px}
  .num{grid-row:auto}
  .d{grid-column:1}
}