:root{
  --bg:#ffffff; --card:#fff; --ink:#1d1d1f; --muted:#6e6e76; --line:#e9e9ee; --grid:#f4f4f6;
  --brand:#f26b1d; --brand-dark:#c2530f; --brand-soft:#fff1e6;
  --rojo:#d0362a; --rojo-soft:#fcebe9;
  --gold:#ffe24a; --gold-soft:#fff6c2; --ok:#18784f; --ok-soft:#e2f2e9; --bad:#d0362a;
  --radius:18px; --shadow:0 1px 0 rgba(21,29,54,.04),0 10px 30px -14px rgba(21,29,54,.22);
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"IBM Plex Sans Arabic","Segoe UI",system-ui,sans-serif;font-size:17px;line-height:1.75;-webkit-font-smoothing:antialiased}
.es{font-family:"IBM Plex Sans Arabic","Segoe UI",sans-serif;direction:ltr;unicode-bidi:isolate}
a{color:var(--brand)}
img{max-width:100%}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.narrow{max-width:760px}

/* شريط التنقل */
.nav{position:sticky;top:0;z-index:30;background:rgba(243,245,250,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:18px;height:64px}
.brand{display:flex;align-items:center;gap:8px;font-family:"IBM Plex Sans Arabic","Segoe UI",sans-serif;font-weight:600;font-size:26px;direction:ltr;color:var(--ink);text-decoration:none}
.brand i{width:7px;height:7px;border-radius:50%;background:var(--rojo);display:inline-block;align-self:flex-end;margin-bottom:7px}
.nav .links{display:flex;gap:18px;flex:1}
.nav .links a{color:var(--ink);text-decoration:none;font-size:15px}
.nav .links a:hover{color:var(--brand)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--brand);color:#fff;border:0;border-radius:12px;padding:12px 22px;font-weight:600;font-size:16px;text-decoration:none;cursor:pointer;font-family:inherit}
.btn:hover{background:var(--brand-dark)}
.btn.ghost{background:transparent;color:var(--brand);border:1.5px solid var(--brand)}
.btn.ghost:hover{background:var(--brand-soft)}
.btn.light{background:#fff;color:var(--brand)}
.btn.sm{padding:8px 14px;font-size:15px}

/* البطل */
.hero{padding:56px 0 40px}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.kicker{display:inline-block;color:var(--brand-dark);font-size:15px;font-weight:500}
.hero h1{font-size:46px;line-height:1.28;margin:10px 0 16px;font-weight:600;letter-spacing:-.01em}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero p.lead{font-size:19px;color:var(--muted);margin:0 0 22px}
.hero .ctas{display:flex;gap:12px;flex-wrap:wrap}
.trust{display:flex;gap:18px;flex-wrap:wrap;margin-top:22px;color:var(--muted);font-size:14px}
.trust span::before{content:"✓ ";color:var(--ok);font-weight:700}

/* الهاتف التوضيحي */
.phone{background:#1d1f23;border-radius:36px;padding:12px;box-shadow:0 30px 60px rgba(60,30,10,.25);max-width:320px;margin:0 auto}
.screen{background:var(--bg);border-radius:26px;overflow:hidden}
.screen .bar{background:var(--brand);color:#fff;padding:12px 16px;font-family:inherit;font-weight:800}
.screen .body{padding:14px}
.mini{background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin-bottom:10px;font-size:14px}
.mini .score{float:left;background:var(--brand);color:#fff;border-radius:8px;padding:0 10px;font-family:inherit;font-weight:700}
.mini .err{border-inline-start:3px solid var(--bad);padding-inline-start:8px;margin-top:8px}
.strike{text-decoration:line-through;color:var(--bad)}
.good{color:var(--ok);font-weight:600}

/* الأقسام */
section{padding:56px 0}
section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{text-align:center;max-width:680px;margin:0 auto 34px}
.sec-head h2{font-size:32px;margin:0 0 8px;line-height:1.35}
.sec-head p{color:var(--muted);margin:0}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.feat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
section.alt .feat{background:var(--bg);box-shadow:none}
.feat .ic{width:46px;height:46px;border-radius:12px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-family:inherit;font-weight:800;margin-bottom:12px}
.feat h3{margin:0 0 6px;font-size:19px}
.feat p{margin:0;color:var(--muted);font-size:16px}
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.step{position:relative;padding:22px 22px 22px;background:var(--card);border-radius:var(--radius);border:1px solid var(--line)}
.step::before{counter-increment:s;content:counter(s);position:absolute;top:-16px;right:20px;width:34px;height:34px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-family:inherit}
.step h3{margin:6px 0 4px;font-size:18px}
.step p{margin:0;color:var(--muted);font-size:16px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
.checks{list-style:none;padding:0;margin:16px 0}
.checks li{padding:6px 30px 6px 0;position:relative}
.checks li::before{content:"✓";position:absolute;right:0;top:6px;width:20px;height:20px;border-radius:50%;background:var(--ok-soft);color:var(--ok);font-size:13px;display:flex;align-items:center;justify-content:center;font-weight:700}
.panel{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.panel table{width:100%;border-collapse:collapse;font-size:14px}
.panel td,.panel th{padding:8px 6px;border-bottom:1px solid var(--line);text-align:right}
.panel th{color:var(--muted);font-weight:500}
.pill{display:inline-block;background:var(--gold-soft);color:#5c4a00;border-radius:999px;padding:1px 10px;font-size:13px}
.lessons{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.lesson-link{display:block;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px;text-decoration:none;color:var(--ink);transition:border-color .15s,transform .15s}
.lesson-link:hover{border-color:var(--brand);transform:translateY(-2px)}
.lesson-link b{display:block;font-size:17px}
.lesson-link small{color:var(--muted)}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px 18px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:600;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:left;color:var(--brand);font-weight:700}
.faq details[open] summary::after{content:"−"}
.faq details p{margin:10px 0 0;color:var(--muted)}
.cta{position:relative;overflow:hidden;background-color:var(--brand-dark);background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);background-size:24px 24px;color:#fff;border-radius:8px;padding:44px 40px;text-align:center}
.cta::before{content:"";position:absolute;inset-block:0;inset-inline-start:48px;width:2px;background:var(--rojo)}
.cta h2{margin:0 0 8px;font-size:30px}
.cta p{opacity:.92;margin:0 0 20px}
.install-steps{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.install-steps ol{margin:8px 0 0;padding-inline-start:20px;color:var(--muted)}

/* صفحات الدروس والنصوص */
.page{padding:36px 0 60px}
.crumbs{font-size:14px;color:var(--muted);margin-bottom:8px}
.crumbs a{text-decoration:none}
.page h1{font-size:34px;line-height:1.35;margin:4px 0 10px}
.page h2{font-size:24px;margin:34px 0 10px}
.page h3{font-size:19px;margin:22px 0 8px}
.page .lead{font-size:19px;color:var(--muted)}
.box{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;margin:16px 0}
.rule{border-inline-start:3px solid var(--brand);background:#fff;border-radius:10px;padding:12px 16px;margin:14px 0}
.ex-list{list-style:none;padding:0;margin:10px 0}
.ex-list li{display:flex;flex-direction:column;padding:8px 0;border-bottom:1px dashed var(--line)}
.ex-list li:last-child{border-bottom:0}
.ex-list li .es{font-weight:500}
.ex-list li .ar{color:var(--muted);font-size:15px}
table.conj{border-collapse:collapse;width:100%;font-size:15px;background:#fff;border-radius:12px;overflow:hidden}
table.conj th,table.conj td{border:1px solid var(--line);padding:8px 10px;text-align:left}
table.conj th{background:var(--brand-soft);color:var(--brand-dark);font-weight:600}
.table-wrap{overflow-x:auto;direction:ltr}
.warn{background:var(--rojo-soft);border:1px solid #f1c4bf;border-radius:12px;padding:12px 16px;margin:12px 0}
.quiz li{margin:10px 0}
.quiz details{display:inline-block;margin-inline-start:6px}
.quiz summary{cursor:pointer;color:var(--brand);font-size:14px}
.next-prev{display:flex;justify-content:space-between;gap:12px;margin-top:30px;flex-wrap:wrap}
.legal h2{font-size:21px}
.legal p,.legal li{color:#33363b}
form.contact label{display:block;font-weight:500;margin:12px 0 4px}
form.contact input,form.contact textarea,form.contact select{width:100%;border:1px solid var(--line);border-radius:10px;padding:11px 12px;font:inherit;background:#fff}
form.contact textarea{min-height:140px}

footer{background:var(--ink);color:#c9c5bd;padding:36px 0 26px;font-size:15px}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
footer a{color:#e9e4da;text-decoration:none;display:block;padding:3px 0}
footer a:hover{color:#fff}
footer .brand{color:#fff}
footer .copy{border-top:1px solid #34373c;margin-top:22px;padding-top:16px;font-size:13px;color:#8d8a84}

@media (max-width:900px){
  .hero .wrap,.split{grid-template-columns:1fr}
  .grid3,.lessons,.steps{grid-template-columns:1fr 1fr}
  .nav .links{display:none}
}
@media (max-width:600px){
  body{font-size:16px}
  .hero{padding:32px 0 20px}
  .hero h1{font-size:31px}
  .sec-head h2{font-size:25px}
  .grid3,.grid2,.lessons,.steps,.install-steps,footer .cols{grid-template-columns:1fr}
  .steps{gap:28px}
  section{padding:40px 0}
  .cta{padding:28px 20px}
  .page h1{font-size:27px}
  .nav .wrap{gap:10px}
}

/* الإصدار 2: ورقة الدفتر في الصفحة الرئيسية */
.sheet{position:relative;background:#fff;border:1px solid var(--line);border-radius:6px;box-shadow:var(--shadow);
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:22px 22px;padding:26px 66px 26px 24px}
.sheet::before{content:"";position:absolute;inset-block:0;inset-inline-start:44px;width:2px;background:var(--rojo);opacity:.6}
.sheet .date{font-family:"IBM Plex Sans Arabic","Segoe UI",sans-serif;font-style:italic;color:var(--muted);direction:ltr;text-align:left;font-size:15px}
.sheet .line{font-family:"IBM Plex Sans Arabic","Segoe UI",sans-serif;font-size:22px;direction:ltr;text-align:left;margin:12px 0 4px;line-height:1.5}
.sheet .x{text-decoration:line-through;text-decoration-color:var(--rojo);text-decoration-thickness:2.5px;color:#7a2a23}
.sheet .y{color:var(--rojo);font-weight:600}
.sheet .why{font-size:14px;color:var(--muted)}
.sheet .todo{display:flex;gap:12px;align-items:center;padding:9px 0;border-bottom:1px dashed #c9d1e4;font-size:15.5px}
.sheet .todo:last-child{border-bottom:0}
.sheet .todo i{width:20px;height:20px;border:2px solid var(--ink);border-radius:4px;flex:none;position:relative}
.sheet .todo.ok i::after{content:"";position:absolute;width:20px;height:9px;border-left:3px solid var(--rojo);border-bottom:3px solid var(--rojo);transform:rotate(-45deg);top:-2px;left:2px}
.sheet .todo.ok span{text-decoration:line-through;text-decoration-color:var(--rojo);color:var(--muted)}
.sheet h4{margin:18px 0 2px;font-size:17px}
.sheet .grade{display:flex;justify-content:space-between;align-items:baseline;margin-top:16px;border-top:1px solid var(--line);padding-top:12px}
.sheet .grade b{font-size:30px;color:var(--brand-dark)}
.mark{background:linear-gradient(transparent 55%,var(--gold) 55%,var(--gold) 92%,transparent 92%)}
@media (max-width:600px){.sheet{padding:20px 48px 20px 14px}.sheet::before{inset-inline-start:30px}.sheet .line{font-size:19px}}
/* مظهر نظيف بلا هامش أحمر ولا خطوط دفتر */
.cta::before,.sheet::before{content:none!important;display:none!important}
.cta{background-image:radial-gradient(120% 80% at 100% 0%,#f26b1d 0%,transparent 60%)!important}
.sheet{background-image:none!important;padding-inline-start:24px!important}
.brand i{background:#f26b1d}
.sheet .x{text-decoration-color:var(--muted)!important}
.sheet .y{color:#f26b1d!important}
.sheet .todo.ok i::after{border-color:#18784f!important}
.sheet .todo.ok span{text-decoration-color:var(--muted)!important}

/* الإصدار 8: أبيض وبرتقالي */
.cta{background:#fff1e6!important;background-image:none!important;color:#1d1d1f!important}
.cta h2,.cta p{color:#1d1d1f!important}
.cta .btn{background:#f26b1d;color:#fff}
.mock-tiles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:10px 0 14px}
.mock-tiles div{background:#fff;border:1px solid var(--rule,#e3e3e3);border-radius:10px;padding:8px 10px}
.mock-tiles b{display:block;font-size:22px;line-height:1.2}
.mock-tiles small{font-size:12px;color:var(--muted)}
.panel .line{font-size:19px;direction:ltr;text-align:left;margin:4px 0}