:root{--bg:#f7faf8;--surface:#fff;--ink:#14283a;--muted:#5b6b78;--navy:#12304a;--green:#2e8b5a;--logo:#6abb89;--chalk:#f2c14e;--line:#dde6e1;--board:#12304a;--onboard:#f4f7f5;
box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0e1a24;--surface:#162736;--ink:#eaf1ee;--muted:#9bb0bd;--line:#26405a;--board:#0a2236;--green:#3cc388}}
:root[data-theme="dark"]{--bg:#0e1a24;--surface:#162736;--ink:#eaf1ee;--muted:#9bb0bd;--line:#26405a;--board:#0a2236;--green:#3cc388}
html{height:100%;scroll-padding-top:env(safe-area-inset-top,0px)}
*{box-sizing:border-box}
body{margin:0;min-height:100%;background:var(--bg);color:var(--ink);font-family:Cairo,Tahoma,sans-serif;line-height:1.7}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--chalk);outline-offset:2px}
.wrap{max-width:1120px;margin:0 auto;padding:0 18px}
header{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--navy);border-bottom:0}
.bar{display:flex;align-items:center;gap:14px;height:62px}
.logo{font-weight:800;font-size:1.35rem;color:var(--navy);display:flex;align-items:center;gap:8px}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .logo{color:var(--onboard)}}
.logo img{height:46px;width:auto;display:block;margin:6px 0}.logo .lt{display:flex;flex-direction:column;line-height:1.15}.logo small{font-size:.7rem;font-weight:600;color:var(--green)}.logo i{width:30px;height:30px;border-radius:8px;background:var(--green);display:grid;place-items:center;color:#fff;font-style:normal;font-size:1rem}
nav{display:flex;gap:4px;margin-inline-start:auto;overflow-x:auto}
nav a{padding:6px 12px;border-radius:8px;white-space:nowrap;font-weight:600;color:#cfe0d8}
nav a:hover,nav a.on{background:rgba(255,255,255,.14);color:#fff}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:10px;padding:10px 20px;font-weight:700;cursor:pointer;background:var(--green);color:#fff;min-height:44px}
.btn.alt{background:transparent;color:inherit;border:2px solid currentColor}
.btn.sm{padding:6px 14px;min-height:38px}
.hero{background:var(--board);color:var(--onboard);padding:48px 0 56px;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:36px 36px}
.hero .wrap{display:grid;grid-template-columns:1.2fr 1fr;gap:32px;align-items:center}
h1{font-size:clamp(1.9rem,4.6vw,3.1rem);line-height:1.3;margin:0 0 12px;font-weight:800}
.hero p{font-size:1.1rem;opacity:.88;margin:0 0 22px;max-width:46ch}
.hero .row{display:flex;gap:10px;flex-wrap:wrap}
.hero .btn.alt{color:var(--onboard)}
.card3d{perspective:900px;justify-self:center;width:min(300px,100%)}
.flip{width:100%;aspect-ratio:3/2;border:0;background:none;padding:0;cursor:pointer;transform-style:preserve-3d;transition:transform .6s;position:relative;transform:rotate(-3deg)}
.flip.on{transform:rotate(-3deg) rotateY(180deg)}
.face{position:absolute;inset:0;backface-visibility:hidden;border-radius:16px;display:grid;place-items:center;text-align:center;padding:14px;font-weight:800}
.f1{background:var(--chalk);color:#2a2000;font-size:3.2rem}
.f2{background:#fff;color:var(--navy);transform:rotateY(180deg);font-size:1.15rem;line-height:1.6}
.hint{text-align:center;font-size:.85rem;opacity:.75;margin-top:14px}
@media (prefers-reduced-motion:reduce){.flip{transition:none}}
.search{margin:-26px auto 0;position:relative;z-index:2;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:10px;display:flex;gap:8px;box-shadow:0 8px 24px rgba(18,48,74,.12);max-width:720px}
.search input{flex:1;border:0;background:none;padding:8px 12px;min-width:0}
.search input:focus{outline:none}
section{padding:46px 0 6px}
h2{font-size:1.6rem;margin:0 0 18px;color:var(--navy)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) h2{color:var(--onboard)}}
.cats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.cat{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;cursor:pointer;text-align:start;display:flex;flex-direction:column;gap:4px}
.cat:hover{border-color:var(--green)}
.cat b{font-size:1.05rem}.cat span{font-size:.85rem;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px}
.item{background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;display:flex;flex-direction:column}
.thumb{aspect-ratio:4/3;display:grid;place-items:center;font-size:3.4rem}
.item .in{padding:14px;display:flex;flex-direction:column;gap:6px;flex:1}
.item h3{margin:0;font-size:1.05rem}
.tags{display:flex;gap:6px;flex-wrap:wrap}
.tag{font-size:.78rem;background:var(--bg);border:1px solid var(--line);border-radius:99px;padding:0 10px;color:var(--muted)}
.item p{margin:0;font-size:.9rem;color:var(--muted);flex:1}
.price{font-weight:700;color:var(--green);font-size:.92rem}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.filters select{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:8px 12px;min-height:44px}
.empty{padding:40px;text-align:center;color:var(--muted);border:2px dashed var(--line);border-radius:14px}
.school{margin-top:46px;background:var(--navy);color:#fff;border-radius:18px;padding:30px;display:flex;gap:20px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.school h2{color:#fff;margin:0 0 6px}.school p{margin:0;opacity:.85;max-width:56ch}
.form{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px;max-width:640px;display:grid;gap:12px}
label{display:grid;gap:4px;font-weight:600;font-size:.92rem}
input,select,textarea{border:1px solid var(--line);background:var(--bg);border-radius:10px;padding:9px 12px;min-height:44px;width:100%}
.two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.les{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px 16px;margin-bottom:10px}.les summary{cursor:pointer;display:flex;flex-direction:column;gap:6px;font-size:1.05rem}.les ol{margin:12px 0;padding-inline-start:22px;color:var(--muted)}.les li{margin-bottom:4px}.les .btn{margin-top:4px}
footer{margin-top:60px;background:var(--navy);color:#cfe0d8;padding:30px 0}
footer .wrap{display:flex;gap:20px;justify-content:space-between;flex-wrap:wrap}
.wa{position:fixed;inset-inline-start:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:30;box-shadow:0 6px 18px rgba(0,0,0,.25);border-radius:99px;background:#25a05a}
dialog{border:0;border-radius:16px;padding:0;width:min(440px,92vw);background:var(--surface);color:var(--ink)}
dialog::backdrop{background:rgba(10,20,30,.55)}
dialog .form{border:0;max-width:none}
.toast{position:fixed;bottom:80px;inset-inline:0;margin:auto;width:max-content;max-width:90vw;background:var(--ink);color:var(--bg);padding:10px 18px;border-radius:10px;z-index:40}
.hide{display:none!important}
@media(max-width:760px){.hero .wrap{grid-template-columns:1fr}.two{grid-template-columns:1fr}.bar{flex-wrap:wrap;height:auto;padding:8px 0}nav{order:3;width:100%;margin:0}}

.thumb img{width:100%;height:100%;object-fit:cover;display:block}
.thumb{overflow:hidden}
.alert{padding:10px 14px;border-radius:10px;margin:0 0 14px}.alert.ok{background:#dff3e8;color:#14532d}.alert.bad{background:#fde2e2;color:#7f1d1d}
.tbl{display:grid;gap:8px}.row{display:flex;gap:12px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px 14px}
.row .th{width:56px;height:42px;border-radius:8px;overflow:hidden;display:grid;place-items:center;background:#e6efe9;flex:none}.row .th img{width:100%;height:100%;object-fit:cover}
.row b{flex:1}.row form{margin:0}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.login{max-width:380px;margin:60px auto}

/* ---- البنر المتحرك ---- */
.bnr{position:relative;margin:16px auto 0;border-radius:16px;overflow:hidden;background:var(--board);box-shadow:0 8px 24px rgba(18,48,74,.15);touch-action:pan-y}
.bnr-track{display:grid}
.bnr-slide{grid-area:1/1;align-self:start;position:relative;aspect-ratio:8/3;opacity:0;visibility:hidden;transition:opacity .7s ease,visibility .7s}
.bnr-slide.on{opacity:1;visibility:visible}
.bnr-slide a,.bnr-slide picture,.bnr-slide img{position:absolute;inset:0;display:block;width:100%;height:100%}
.bnr-slide img{object-fit:cover}
.bnr-nav{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border:0;border-radius:50%;background:rgba(18,48,74,.55);color:#fff;font-size:1.9rem;line-height:1;cursor:pointer;display:grid;place-items:center;padding:0 0 4px}
.bnr-nav:hover{background:rgba(18,48,74,.85)}
.bnr-nav.prev{inset-inline-start:10px}.bnr-nav.next{inset-inline-end:10px}
.bnr-dots{position:absolute;inset-inline:0;bottom:10px;display:flex;gap:8px;justify-content:center}
.bnr-dots button{width:11px;height:11px;border-radius:99px;border:0;padding:0;min-height:0;background:rgba(255,255,255,.55);cursor:pointer;box-shadow:0 0 0 1px rgba(0,0,0,.25)}
.bnr-dots button.on{background:var(--chalk);width:26px}
@media(max-width:760px){.bnr-slide{aspect-ratio:16/9}.bnr-nav{width:34px;height:34px;font-size:1.5rem}}
@media (prefers-reduced-motion:reduce){.bnr-slide{transition:none}}

/* ---- صور الدروس وغلاف القوائم ---- */
.lesimg{width:100%;max-height:200px;object-fit:cover;border-radius:10px;display:block}
.mcover{border-radius:14px;overflow:hidden;margin-bottom:16px;aspect-ratio:16/5;background:#e6efe9}
.mcover img{width:100%;height:100%;object-fit:cover;display:block}
.row .tag{flex:none}

/* ---- فيديو الدرس ---- */
.lesvid{display:block;width:100%;max-height:440px;border-radius:10px;background:#000;margin:12px 0}
.lesvid.yt{aspect-ratio:16/9;height:auto;max-height:none;border:0}
.vid summary{cursor:pointer;color:var(--green);font-weight:700;font-size:.9rem}
.vid .lesvid{margin:8px 0}

/* ---- مربعات رفع الصور في لوحة التحكم ---- */
.upl{border:2px dashed var(--line);border-radius:12px;padding:12px;display:grid;gap:8px;background:var(--bg)}
.upl-prev{display:flex;gap:8px;flex-wrap:wrap}
.upl-prev img,.upl-prev video{max-width:240px;max-height:160px;border-radius:10px;object-fit:cover;display:block}
.upl-new.multi img{width:96px;height:72px}
.upl-prev .gi{display:grid;gap:2px;width:96px;font-size:.75rem;font-weight:400}
.upl-prev .gi img{width:96px;height:72px}
.upl-prev .gi span{display:flex;gap:4px;align-items:center}
.upl-prev .gi input{width:auto;min-height:0}
.upl-btn{justify-self:start;cursor:pointer}
.upl-name{font-size:.82rem;color:var(--muted)}
.gal{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin:8px 0}
.gal img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:8px;display:block}
.pts{margin:0;padding-inline-start:20px;color:var(--muted);font-size:.9rem}
.upl{scroll-margin-top:90px}