:root{
  --bg:#ECEFEA; --fg:#1A2629; --muted:#4A5A5D; --line:#C3CBC6; --panel:#E0E6E1; --card:#F7F8F5;
  --ink:#173D46; --ink-fg:#EEF3F0;
  --stop:#9E3127; --stop-fg:#FFFFFF; --go:#2D6440; --go-fg:#FFFFFF;
  --pattern:#173D46;
  --head:"Readex Pro","IBM Plex Sans Arabic",system-ui,"Segoe UI",Tahoma,sans-serif;
  --body:"IBM Plex Sans Arabic","Readex Pro",system-ui,"Segoe UI",Tahoma,sans-serif;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#101719; --fg:#E3E9E5; --muted:#A3B1AD; --line:#2C3739; --panel:#172124; --card:#141D20;
    --ink:#1F5360; --ink-fg:#EEF3F0; --stop:#B23C31; --go:#2F6B44; --pattern:#7FA9B2;
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#101719; --fg:#E3E9E5; --muted:#A3B1AD; --line:#2C3739; --panel:#172124; --card:#141D20;
  --ink:#1F5360; --ink-fg:#EEF3F0; --stop:#B23C31; --go:#2F6B44; --pattern:#7FA9B2;
  color-scheme:dark;
}
html{scroll-padding-top:env(safe-area-inset-top,0px);-webkit-text-size-adjust:100%}
*,*::before,*::after{box-sizing:inherit}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--body);font-size:1.0625rem;line-height:1.6}
html[lang="ar"] body{line-height:1.85}
img,svg{max-width:100%}
a{color:inherit}
:focus-visible{outline:3px solid var(--stop);outline-offset:3px}
h1,h2,h3{font-family:var(--head);font-weight:600;line-height:1.2;margin:0}
h1{font-size:clamp(2.1rem,5.2vw,3.4rem);letter-spacing:-.015em}
html[lang="ar"] h1{letter-spacing:0;line-height:1.35}
h2{font-size:clamp(1.6rem,3.4vw,2.2rem)}
h3{font-size:1.15rem}
p{margin:0}
.wrap{max-width:1080px;margin:0 auto;padding-inline:24px}

/* pattern band: eight-point stars on edges only */
.band{height:18px;background:var(--pattern);opacity:.55;
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 40 40'%3E%3Cg fill='none' stroke='black' stroke-width='2.4'%3E%3Crect x='10' y='10' width='20' height='20'/%3E%3Cpath d='M20 5.9 34.1 20 20 34.1 5.9 20Z'/%3E%3C/g%3E%3C/svg%3E") repeat-x left center/18px 18px;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 40 40'%3E%3Cg fill='none' stroke='black' stroke-width='2.4'%3E%3Crect x='10' y='10' width='20' height='20'/%3E%3Cpath d='M20 5.9 34.1 20 20 34.1 5.9 20Z'/%3E%3C/g%3E%3C/svg%3E") repeat-x left center/18px 18px}

/* header */
.top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:18px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--head);font-weight:600;font-size:1.2rem}
.brand svg{width:26px;height:26px;color:var(--ink)}
html[data-theme="dark"] .brand svg{color:var(--pattern)}
@media (prefers-color-scheme:dark){html:not([data-theme="light"]) .brand svg{color:var(--pattern)}}
.top nav{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.more{margin-top:18px;color:var(--muted);font-size:.95rem}
.btn{display:inline-block;font:500 1rem/1 var(--head);padding:13px 20px;border:2px solid var(--ink);background:var(--ink);color:var(--ink-fg);text-decoration:none;cursor:pointer}
.btn:hover{filter:brightness(1.12)}
.btn.line{background:transparent;color:var(--fg);border-color:var(--fg)}
.btn.light{background:var(--ink-fg);color:var(--ink);border-color:var(--ink-fg)}
.btn.sm{padding:9px 14px;font-size:.92rem}
.lang{font-family:var(--body)}

/* hero */
.hero{display:grid;grid-template-columns:1.15fr 1fr;gap:56px;align-items:start;padding-block:56px 72px}
.chip{display:inline-block;font:500 .85rem/1 var(--head);padding:7px 10px;background:var(--panel);border-inline-start:4px solid var(--ink);margin-bottom:22px}
.lede{font-size:1.2rem;color:var(--muted);margin-top:22px;max-width:34em}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}

/* sample alert */
.alert{background:var(--card);border:2px solid var(--fg);margin:0}
.alert figcaption{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:12px 16px;background:var(--fg);color:var(--bg);font:500 .92rem/1.3 var(--head)}
.adbox{margin:16px;aspect-ratio:16/7;border:2px dashed var(--line);display:grid;place-items:center;text-align:center;color:var(--muted);font-size:.92rem;padding:12px;
  background:repeating-linear-gradient(135deg,transparent 0 10px,var(--panel) 10px 11px)}
.meta{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;margin:0 16px 14px;font-size:.92rem}
.meta dt{color:var(--muted)}
.meta dd{margin:0}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88em;direction:ltr;unicode-bidi:isolate}
.checks{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.checks li{display:grid;grid-template-columns:1fr auto;gap:2px 12px;padding:12px 16px;border-bottom:1px solid var(--line)}
.checks strong{font-family:var(--head);font-weight:500}
.checks span.saw{grid-column:1;color:var(--muted);font-size:.92rem}
.tag{grid-row:1/span 2;grid-column:2;align-self:center;font:600 .8rem/1 var(--head);padding:6px 9px}
.tag.stop{background:var(--stop);color:var(--stop-fg)}
.tag.go{background:var(--go);color:var(--go-fg)}
.score{padding:14px 16px 16px}
.score .row{display:flex;justify-content:space-between;gap:10px;font:500 .95rem/1.3 var(--head)}
.bar{height:10px;background:var(--panel);margin:10px 0 12px}
.bar i{display:block;height:100%;width:91%;background:var(--stop);transform-origin:left center;animation:fill 1.1s .3s cubic-bezier(.2,.7,.2,1) both}
html[dir="rtl"] .bar i{transform-origin:right center}
@keyframes fill{from{transform:scaleX(0)}to{transform:scaleX(1)}}
@media (prefers-reduced-motion:reduce){.bar i{animation:none}}
.sent{color:var(--muted);font-size:.88rem}

/* sections */
section{padding-block:72px;border-top:2px solid var(--fg)}
section .wrap > header{max-width:42em;margin-bottom:40px}
section .wrap > header p{margin-top:18px;color:var(--muted);font-size:1.1rem}
section .wrap > header h2{padding-bottom:4px}
.prose{max-width:40em;display:grid;gap:16px;font-size:1.1rem}

/* steps: a real sequence */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:20px;counter-reset:step}
.steps li{counter-increment:step;border-top:4px solid var(--ink);padding-top:14px}
html[data-theme="dark"] .steps li{border-top-color:var(--pattern)}
@media (prefers-color-scheme:dark){html:not([data-theme="light"]) .steps li{border-top-color:var(--pattern)}}
.steps li::before{content:counter(step);display:block;font:600 2.2rem/1 var(--head);margin-bottom:12px}
html[lang="ar"] .steps li::before{content:counter(step,arabic-indic)}
.steps h3{margin-bottom:8px}
.steps p{color:var(--muted);font-size:.98rem}

/* rules */
.rules{border:2px solid var(--fg);background:var(--card);max-width:760px}
.rules > p.title{padding:12px 16px;background:var(--panel);font:500 .95rem/1.3 var(--head);border-bottom:2px solid var(--fg)}
.rules dl{margin:0}
.rules .r{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:14px 16px;border-bottom:1px solid var(--line)}
.rules .r:last-child{border-bottom:0}
.rules dt{font-size:1.02rem}
.rules dd{margin:0;flex:none}
.rules dd .tag{display:inline-block}
.note{margin-top:22px;max-width:40em;color:var(--muted)}

/* scope */
.scope{display:grid;grid-template-columns:1.4fr 1fr;gap:20px}
.scope > div{padding:24px;border:2px solid var(--fg)}
.scope > div.later{background:var(--panel);border-color:var(--panel)}
.scope h3{margin-bottom:14px}
.scope ul{margin:0;padding-inline-start:1.2em;display:grid;gap:10px}
.scope li::marker{color:var(--muted)}

/* safety */
.safe{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.safe h3{margin-bottom:8px}
.safe p{color:var(--muted);font-size:.98rem}

/* pilot */
.pilot{background:var(--ink);color:var(--ink-fg);border-top:0;padding-block:0}
.pilot .wrap{padding-block:72px}
.pilot .wrap > header{margin-bottom:22px}
.pilot .prose{color:var(--ink-fg)}
.pilot .prose p:last-of-type{opacity:.85}
.pilot .actions{margin-top:30px}
.pilot .band{background:var(--ink-fg);opacity:.35}

footer{border-top:2px solid var(--fg);color:var(--muted);font-size:.9rem}
footer .wrap{display:flex;align-items:center;justify-content:space-between;gap:14px 24px;flex-wrap:wrap;padding-block:24px}
footer p{margin:0}
footer nav{display:flex;gap:18px;flex-wrap:wrap}
footer a{text-decoration:none}
footer a:hover{text-decoration:underline}

@media (max-width:900px){
  .hero{grid-template-columns:1fr;gap:40px;padding-block:36px 56px}
  .steps{grid-template-columns:1fr 1fr}
  .safe{grid-template-columns:1fr 1fr}
  .scope{grid-template-columns:1fr}
}
@media (max-width:560px){
  .wrap{padding-inline:18px}
  .steps,.safe{grid-template-columns:1fr}
  section{padding-block:52px}
  .top .btn:not(.lang){display:none}
  .rules .r{flex-direction:column;align-items:flex-start;gap:8px}
}

.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px 32px}
.grid4 h3,.grid3 h3{margin-bottom:8px}
.grid4 p,.grid3 p{color:var(--muted);font-size:.98rem}
.grid4 > div,.grid3 > div{border-top:2px solid var(--line);padding-top:14px}
.stance{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:start}
.stance .big{font:600 clamp(1.7rem,3.6vw,2.4rem)/1.25 var(--head);margin:0}
.stance .big span{display:block}
.stance .big span:nth-child(3),.stance .big span:nth-child(6){color:var(--stop)}
html[data-theme="dark"] .stance .big span:nth-child(3),html[data-theme="dark"] .stance .big span:nth-child(6){color:#E58A80}
@media (prefers-color-scheme:dark){html:not([data-theme="light"]) .stance .big span:nth-child(3),html:not([data-theme="light"]) .stance .big span:nth-child(6){color:#E58A80}}
.channels{list-style:none;margin:0;padding:0;max-width:560px}
.channels li{position:relative;font:500 1.05rem/1.4 var(--head);padding:12px 0;padding-inline-start:28px;border-bottom:1px solid var(--line)}
.channels li:first-child{border-top:1px solid var(--line)}
.channels li::before{content:"";position:absolute;inset-inline-start:2px;top:1.15em;width:10px;height:10px;background:var(--ink)}
.get{list-style:none;margin:0;padding:0;border:2px solid var(--fg);max-width:820px}
.get li{position:relative;padding:14px 18px;padding-inline-start:46px;border-bottom:1px solid var(--line)}
.get li:last-child{border-bottom:0}
.get li::before{content:"";position:absolute;inset-inline-start:18px;top:1.35em;width:12px;height:12px;background:var(--go)}
.note2{margin-top:24px;color:var(--muted);max-width:40em}

/* ad networks */
.nets{display:grid;grid-template-columns:1fr 1fr;gap:28px 32px}
.nets > div{border-top:2px solid var(--line);padding-top:14px}
.nets h3{margin-bottom:14px}
.nets p{margin-top:14px;color:var(--muted);font-size:.98rem}
.netlist{margin:0;padding-inline-start:1.25em;line-height:1.75}
.netlist li{unicode-bidi:isolate}
.fineprint{margin-top:20px;color:var(--muted);font-size:.88rem;max-width:40em}
@media (max-width:900px){.grid4{grid-template-columns:1fr 1fr}.grid3{grid-template-columns:1fr 1fr}.stance{grid-template-columns:1fr;gap:24px}}
@media (max-width:560px){.grid4,.grid3,.nets{grid-template-columns:1fr}}

.pair{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:stretch}
.case{border:2px solid var(--fg);background:var(--card);display:flex;flex-direction:column}
.case .verdict{margin:0;padding:12px 16px;font:600 1rem/1.3 var(--head);color:#fff}
.case.bad .verdict{background:var(--stop)}
.case.good .verdict{background:var(--go)}
.admock{position:relative;margin:18px 18px 0;border:1px solid var(--line);background:#fff;color:#1A2629}
.admock svg{display:block;width:100%;height:auto}
.adtag{position:absolute;top:8px;inset-inline-start:8px;font:600 .72rem/1 var(--head);background:#F2C94C;color:#1A2629;padding:4px 6px}
.adtext{display:grid;gap:4px;padding:12px 14px 14px;font-size:.95rem}
.adtext strong{font-family:var(--head);font-weight:600}
.adtext em{font-style:normal;justify-self:start;margin-top:6px;font:500 .85rem/1 var(--head);padding:8px 12px;background:#1A2629;color:#fff}
.flow{list-style:none;margin:20px 18px 22px;padding:0;counter-reset:f}
.flow li{counter-increment:f;position:relative;padding-inline-start:40px;padding-bottom:16px;font-size:.98rem}
.flow li:last-child{padding-bottom:0}
.flow li::before{content:counter(f);position:absolute;inset-inline-start:0;top:0;width:26px;height:26px;display:grid;place-items:center;font:600 .85rem/1 var(--head);border:2px solid var(--fg);background:var(--bg)}
html[lang="ar"] .flow li::before{content:counter(f,arabic-indic)}
.flow li::after{content:"";position:absolute;inset-inline-start:12px;top:28px;bottom:2px;width:2px;background:var(--line)}
.flow li:last-child::after{display:none}
.flow li.hit::before{background:var(--stop);border-color:var(--stop);color:#fff}
.flow li.pass::before{background:var(--go);border-color:var(--go);color:#fff}
.flow li.hit{font-weight:500}
@media (max-width:900px){.pair{grid-template-columns:1fr}}

:root{--mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.mark{display:inline-block;font:600 1.05rem/1 var(--mono);letter-spacing:.12em;padding:8px 9px 8px 11px;background:var(--fg);color:var(--bg);direction:ltr;unicode-bidi:isolate;min-width:5.2em;text-align:center}
.mark.sm{font-size:.82rem;padding:6px 7px 6px 9px}
.ad80{font-family:var(--mono);font-weight:600;font-size:.9em;letter-spacing:.06em;direction:ltr;unicode-bidi:isolate}
h1 .ad80,h2 .ad80,h3 .ad80{font-size:.88em}
.pilot .actions{align-items:center}
.wa{margin:0;font:500 1rem/1 var(--mono);letter-spacing:.04em;opacity:.85}

/* ---------- FAQ and comparison page ---------- */
.faq-hero{padding-block:56px 64px;max-width:46em}
.pageindex{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.pageindex a{font:500 .95rem/1 var(--head);text-decoration:none;padding:11px 13px;background:var(--panel);border-inline-start:4px solid var(--ink)}
.pageindex a:hover{text-decoration:underline}

/* comparison table: scrolls sideways on narrow screens, row header stays put */
.cmp-scroll{overflow-x:auto;padding:0;border:2px solid var(--fg);max-width:980px}
.cmp{border-collapse:separate;border-spacing:0;width:100%;min-width:780px;font-size:.98rem}
.cmp th,.cmp td{padding:12px 14px;text-align:start;vertical-align:middle;border-bottom:1px solid var(--line)}
.cmp thead th,.cmp thead td{font:500 .95rem/1.35 var(--head);vertical-align:bottom;border-bottom:2px solid var(--fg)}
.cmp tbody th{font:500 1rem/1.45 var(--head)}
.cmp tbody tr:last-child th,.cmp tbody tr:last-child td{border-bottom:0}
.cmp .me{background:var(--card);border-inline:2px solid var(--fg)}
.cmp .v{white-space:nowrap}
.cmp .vdot{display:inline-block;width:11px;height:11px;margin-inline-end:9px;vertical-align:middle}
.cmp .go .vdot{background:var(--go)}
.cmp .no .vdot{background:var(--stop)}
.cmp .part .vdot{background:var(--muted)}
@media (max-width:700px){
  .cmp tbody th,.cmp thead td{position:sticky;inset-inline-start:0;z-index:1;min-width:12em;background:var(--bg);border-inline-end:1px solid var(--line)}
}

/* question lists */
.faq{border:2px solid var(--fg);max-width:820px}
.faq details{border-bottom:1px solid var(--line)}
.faq details:last-child{border-bottom:0}
.faq summary{display:flex;align-items:center;gap:14px;padding:15px 18px;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";margin-inline-start:auto;font:400 1.5rem/1 var(--head);color:var(--muted)}
.faq details[open] summary{background:var(--panel)}
.faq details[open] summary::after{content:"\2212"}
.faq summary h3{font-weight:500;font-size:1.05rem}
.faq .answer{display:grid;gap:14px;padding:4px 18px 20px}
.faq .answer p{max-width:46em}
.faq .answer a{text-decoration:underline;text-underline-offset:3px}

/* ---------- motion: light, functional, off under reduced-motion ---------- */
@media (prefers-reduced-motion:no-preference){
  @view-transition{navigation:auto}
  ::view-transition-old(root),::view-transition-new(root){animation-duration:.18s}
  html{scroll-behavior:smooth}
  main{animation:page-in .25s ease-out both}
  @keyframes page-in{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
  .btn,a.lang{transition:filter .15s,background-color .15s,color .15s}
  .faq summary{transition:background-color .15s}
  .faq summary::after{transition:transform .2s}
  .faq details[open] summary::after{transform:rotate(180deg)}
  .faq .answer{animation:page-in .2s ease-out both}
}