:root{
  --bg:#FAF6EF; --card:#FFFFFF; --ink:#2B2620; --soft:#6E6353; --line:#E8DFD0;
  --hist:#8C3041; --hist-t:#F9EEF0; --geo:#2D6A4F; --geo-t:#EDF5F0;
  --civ:#235A8C; --civ-t:#EDF3F9; --met:#A8762B; --met-t:#FBF4E6;
  --tip:#2B6E6B; --tip-t:#EAF4F3; --gold:#C9A227;
  --brand:#E8720C; --brand-t:#FDF1E4; --brand2:#1A6FA8; --brand2-t:#EAF2F8; --brand2-deep:#0E4A75;
  --sh:0 4px 18px rgba(80,60,30,.08);
  --fs:1rem;
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"Cairo","Segoe UI","Tahoma","Noto Naskh Arabic UI",sans-serif;
  background:var(--bg); color:var(--ink); font-size:var(--fs); line-height:2.05;
}
body.present{--fs:1.18rem;}
/* ===== layout ===== */
.app{display:grid; grid-template-columns:264px 1fr; min-height:100vh;}
@media(max-width:920px){.app{grid-template-columns:1fr;}}
/* sidebar */
aside{
  background:linear-gradient(180deg,#2E2820,#3A3226); color:#F2EADB; padding:22px 16px;
  position:sticky; top:0; height:100vh; overflow:auto;
}
@media(max-width:920px){aside{position:relative; height:auto;}}
aside .logo{text-align:center; margin-bottom:8px;}
aside .logo .em{font-size:2.4rem;}
aside h1{font-size:1.08rem; text-align:center; line-height:1.7;}
aside h1 b{color:var(--gold);}
aside .sig{
  text-align:center; font-size:.72rem; color:#CdbE9F; margin:8px 0 18px; line-height:1.8;
  border-bottom:1px solid rgba(255,255,255,.12); padding-bottom:14px;
}
.navlink{
  display:flex; align-items:center; gap:10px; width:100%; text-align:start; border:none; cursor:pointer;
  background:transparent; color:#E5DAC4; font-family:inherit; font-size:.95rem; font-weight:800;
  padding:12px 14px; border-radius:12px; margin-bottom:4px; transition:all .2s; border-inline-start:4px solid transparent;
}
.navlink:hover{background:rgba(255,255,255,.07);}
.navlink.on{background:rgba(255,255,255,.1); border-inline-start-color:var(--gold); color:#fff;}
.navlink .ct{margin-inline-start:auto; font-size:.68rem; background:rgba(255,255,255,.12); border-radius:999px; padding:1px 9px;}
.toolbox{margin-top:18px; border-top:1px solid rgba(255,255,255,.12); padding-top:14px;}
.toolbox .row{display:flex; gap:6px; margin-bottom:8px;}
.toolbox button{
  flex:1; border:none; cursor:pointer; font-family:inherit; font-weight:800; font-size:.78rem;
  background:rgba(255,255,255,.1); color:#F2EADB; border-radius:10px; padding:9px 4px; transition:background .2s;
}
.toolbox button:hover{background:rgba(255,255,255,.2);}
.toolbox .lbl{font-size:.68rem; color:#B9AC92; margin-bottom:6px;}
/* main */
main{padding:30px clamp(16px,4vw,52px) 90px; max-width:1020px;}
section.view{display:none; animation:fadeUp .4s;}
section.view.on{display:block;}
@keyframes fadeUp{from{opacity:0; transform:translateY(14px);} to{opacity:1; transform:none;}}
.view-head{margin-bottom:24px; padding-bottom:16px; border-bottom:3px solid var(--line); position:relative;}
.view-head::after{content:""; position:absolute; bottom:-3px; right:0; width:120px; height:3px; background:var(--ac,var(--gold));}
.view-head h2{font-size:1.55rem; color:var(--ac,var(--ink)); display:flex; align-items:center; gap:10px;}
.view-head p{color:var(--soft); font-size:.9rem; margin-top:4px;}
/* ===== lesson accordion ===== */
details.lesson{
  background:var(--card); border-radius:18px; box-shadow:var(--sh); margin-bottom:16px; overflow:hidden;
  border:1px solid var(--line); border-inline-start:6px solid var(--ac);
}
details.lesson summary{
  list-style:none; cursor:pointer; padding:18px 20px; display:flex; align-items:center; gap:14px;
  transition:background .2s; user-select:none;
}
details.lesson summary::-webkit-details-marker{display:none;}
details.lesson summary:hover{background:var(--tint);}
details.lesson[open] summary{background:var(--tint); border-bottom:1px solid var(--line);}
.lnum{
  min-width:46px; height:46px; border-radius:14px; background:var(--ac); color:#fff; display:grid;
  place-items:center; font-weight:900; font-size:1.05rem; flex-shrink:0;
}
details.lesson summary h3{font-size:1.08rem; color:var(--ink); flex:1; line-height:1.7;}
details.lesson summary .chev{transition:transform .3s; color:var(--ac); font-size:1.1rem;}
details.lesson[open] summary .chev{transform:rotate(90deg);}
.done-chk{
  display:flex; align-items:center; gap:5px; font-size:.72rem; color:var(--soft); font-weight:800;
  background:#FBF8F2; border:1.5px solid var(--line); border-radius:999px; padding:4px 12px; cursor:pointer;
  flex-shrink:0; transition:all .2s;
}
.done-chk.ok{background:#EAF6EE; border-color:#9CD3AE; color:#1F7A45;}
.lesson-body{padding:8px 24px 26px;}
/* content elements */
.intro-block{
  background:var(--tint); border-radius:14px; padding:14px 18px; margin:14px 0; font-size:.95em;
  border-inline-start:4px solid var(--ac);
}
.intro-block .iq{color:var(--ac); font-weight:800;}
h4.act{
  display:inline-block; color:#fff; background:var(--ac); border-radius:999px; padding:5px 18px;
  font-size:.88em; margin:20px 0 8px; box-shadow:var(--sh);
}
.lesson-body ul{padding-inline-start:24px; margin:6px 0;}
.lesson-body ul ul{margin:2px 0;}
.lesson-body li{margin-bottom:3px;}
.lesson-body b{color:var(--ac);} .lesson-body .k{color:var(--ink); background:var(--tint); padding:0 5px; border-radius:5px; font-weight:800;}
table.tb{width:100%; border-collapse:collapse; margin:12px 0; font-size:.92em; background:#fff;}
table.tb th{background:var(--ac); color:#fff; padding:9px 10px; font-size:.9em;}
table.tb td{border:1px solid var(--line); padding:9px 12px; vertical-align:top; line-height:1.95;}
table.tb tr:nth-child(even) td{background:#FCFAF5;}
table.tb td:first-child{font-weight:800; background:var(--tint)!important; white-space:nowrap;}
.tl{display:flex; flex-wrap:wrap; gap:8px; margin:12px 0; align-items:center;}
.tl .ev{
  background:#fff; border:1.5px solid var(--ac); border-radius:12px; padding:6px 12px; font-size:.82em;
  font-weight:800; box-shadow:var(--sh); line-height:1.7;
}
.tl .ev b{display:block; color:var(--ac); font-size:1.05em;}
.tl .arr{color:var(--ac); font-weight:900;}
.concepts{display:grid; grid-template-columns:repeat(auto-fill,minmax(250px,1fr)); gap:10px; margin-top:10px;}
.cpt{background:#FFFDF8; border:1.5px solid var(--line); border-top:4px solid var(--gold); border-radius:12px; padding:12px 14px;}
.cpt b{display:block; color:var(--ac); margin-bottom:3px; font-size:.95em;}
.cpt span{font-size:.86em; color:#473F33; line-height:1.95; display:block;}
.conclusion{
  margin-top:18px; background:linear-gradient(90deg,var(--tint),#FFFDF8); border:1.5px dashed var(--ac);
  border-radius:14px; padding:12px 18px; font-weight:800; font-size:.94em;
}
/* framework cards */
.fw-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:16px; margin:18px 0;}
.fw{
  background:var(--card); border-radius:18px; box-shadow:var(--sh); padding:20px; border-top:6px solid var(--brand);
  position:relative; overflow:hidden;
}
.fw .n{position:absolute; top:8px; inset-inline-start:14px; font-size:3.2rem; font-weight:900; color:var(--brand-t);}
.fw h3{color:var(--ink); font-size:1.05rem; position:relative; display:flex; gap:8px; align-items:center;}
.fw .pts{background:var(--brand2); color:#fff; border-radius:999px; padding:2px 14px; font-size:.78rem; font-weight:900;}
.fw p{font-size:.88rem; color:#473F33; margin-top:8px; position:relative;}
.fw ul{padding-inline-start:20px; font-size:.86rem; margin-top:6px; position:relative;}
.info-strip{
  display:flex; gap:12px; flex-wrap:wrap; margin:14px 0;
}
.info-strip .it{
  flex:1; min-width:140px; background:var(--card); border:1px solid var(--line); border-radius:14px;
  padding:12px; text-align:center; box-shadow:var(--sh);
}
.info-strip .it .v{font-size:1.3rem; font-weight:900; color:var(--brand);}
.info-strip .it .l{font-size:.74rem; color:var(--soft);}
/* tips */
.tipcard{
  background:var(--card); border-radius:16px; box-shadow:var(--sh); padding:18px 20px; margin-bottom:14px;
  border-inline-start:6px solid var(--tip);
}
.tipcard h3{color:var(--tip); font-size:1.02rem; margin-bottom:8px; display:flex; gap:8px; align-items:center;}
.tipcard ul{padding-inline-start:22px; font-size:.93rem;}
.tipcard li{margin-bottom:4px;}
.tipcard .warn{background:#FDF0EE; border-inline-start:4px solid #C0564B; border-radius:10px; padding:8px 12px; font-size:.85rem; margin-top:10px;}
.welcome{
  background:linear-gradient(135deg,#fff,#FBF6EA); border-radius:20px; box-shadow:var(--sh); padding:24px;
  border:1px solid var(--line); margin-bottom:24px; display:flex; gap:18px; align-items:center; flex-wrap:wrap;
}
.welcome .em{font-size:3.4rem;}
.welcome h3{color:var(--ink); font-size:1.2rem; margin-bottom:4px;}
.welcome h3 b{color:var(--brand);}
.welcome p{font-size:.9rem; color:#473F33;}
/* ===== قسم البداية (Hero) — الهوية: برتقالي #E8720C + أزرق #1A6FA8 ===== */
.hero{
  background:linear-gradient(165deg,var(--brand2) 0%,var(--brand2-deep) 100%);
  color:#fff; text-align:center; border-radius:24px; box-shadow:var(--sh);
  padding:clamp(26px,5vw,44px) clamp(16px,4vw,40px); margin-bottom:26px;
  position:relative; overflow:hidden;
}
.hero::before{
  content:""; position:absolute; width:260px; height:260px; border-radius:50%;
  background:radial-gradient(circle,rgba(232,114,12,.28),transparent 70%);
  top:-90px; inset-inline-end:-70px; pointer-events:none;
}
.hero::after{
  content:""; position:absolute; width:300px; height:300px; border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.09),transparent 70%);
  bottom:-140px; inset-inline-start:-90px; pointer-events:none;
}
.hero>*{position:relative;}
.hero-badge{
  display:inline-flex; flex-wrap:wrap; justify-content:center; align-items:center; gap:2px 7px;
  border:1.5px solid var(--brand); background:rgba(232,114,12,.16); color:#FFE3C9;
  border-radius:999px; padding:6px 13px; font-weight:800;
  font-size:clamp(.62rem,2.9vw,.88rem); line-height:1.9;
}
/* إصلاح BiDi: عزل الأرقام واللاتينية ومنع الكسر داخل المقاطع */
.hero-badge .seg{white-space:nowrap;}
.hero-badge bdi{unicode-bidi:isolate; white-space:nowrap;}
.hero-badge .bsep{color:var(--brand); font-weight:900;}
.hero-em{display:block; font-size:3.6rem; margin:14px 0 4px; text-shadow:0 8px 24px rgba(0,0,0,.35);}
.hero-title{font-size:clamp(1.7rem,5.5vw,2.4rem); line-height:1.65; color:#fff;}
.hero-title b{color:#FFA857; border-bottom:4px solid var(--brand); padding-bottom:2px;}
.hero-sub{color:#D8E9F5; font-size:clamp(.85rem,3vw,1rem); margin:12px 0 18px; line-height:2.1;}
.hero-subjects{display:flex; flex-wrap:wrap; justify-content:center; gap:10px; margin-bottom:20px;}
.hs{
  border:none; cursor:pointer; font-family:inherit; font-weight:900; font-size:.92rem;
  border-radius:999px; padding:10px 22px; transition:transform .15s, box-shadow .15s;
  box-shadow:0 4px 14px rgba(0,0,0,.25);
}
.hs:hover{transform:translateY(-3px); box-shadow:0 8px 20px rgba(0,0,0,.3);}
.hs-hist{background:var(--hist-t); color:var(--hist);}
.hs-geo{background:var(--geo-t); color:var(--geo);}
.hs-civ{background:var(--civ-t); color:var(--civ);}
.hs-met{background:var(--met-t); color:#7A5313;}
/* بطاقات الإحصائيات: الرقم والكلمة عنصران منفصلان = تباعد سليم على كل الشاشات */
.hero-stats{display:grid; grid-template-columns:repeat(4,1fr); gap:10px; max-width:560px; margin:0 auto;}
@media(max-width:480px){.hero-stats{grid-template-columns:repeat(2,1fr);}}
.hst{background:rgba(255,255,255,.12); border:1px solid rgba(255,255,255,.18); border-radius:16px; padding:12px 8px;}
.hst b{display:block; font-size:1.55rem; line-height:1.4; color:#FFB36B; unicode-bidi:isolate;}
.hst span{display:block; margin-top:2px; font-size:.78rem; color:#E4EFF8; font-weight:800;}
/* ===== طباعة احترافية ===== */
/* ترويسة وتذييل الطباعة: مخفيان على الشاشة نهائيا، يظهران فقط عند الطباعة */
.print-head,.print-foot{display:none;}
#printArea{display:none;}
@media print{
  @page{ margin:14mm 12mm; }
  /* أخفِ كل واجهة التطبيق */
  body > *{display:none!important;}
  body{background:#fff!important; color:#000!important; font-size:11pt; line-height:1.75;}
  /* أظهر منطقة الطباعة فقط */
  #printArea{display:block!important;}
  #printArea .print-head,#printArea .print-foot{display:block!important;}
  #printArea .print-head{text-align:center; border-bottom:2px solid #000; padding-bottom:6px; margin-bottom:14px;}
  #printArea .print-foot{position:fixed; bottom:0; inset-inline:0; text-align:center; font-size:8pt; color:#333; border-top:1px solid #999; padding-top:3px; background:#fff;}
  #printArea .print-head b{font-size:13pt;} #printArea .print-head span{font-size:9pt;}
  #printArea .psec{page-break-before:always;}
  #printArea .psec:first-child{page-break-before:avoid;}
  #printArea h2.ph{font-size:15pt; color:#000; border-bottom:2px solid #888; padding-bottom:5px; margin:10px 0 14px;}
  #printArea details, #printArea .lesson{display:block!important; break-inside:avoid; border:1px solid #888!important; border-radius:8px; margin-bottom:10px; box-shadow:none!important; padding:0;}
  #printArea summary{list-style:none; padding:10px 14px; background:#f0f0f0!important; -webkit-print-color-adjust:exact; print-color-adjust:exact; display:flex; gap:10px; align-items:center; font-weight:800;}
  #printArea summary .chev, #printArea .done-chk{display:none!important;}
  #printArea .lnum{min-width:34px; height:34px; border-radius:8px; border:1px solid #000; background:#ddd!important; color:#000!important; display:grid; place-items:center; font-weight:900; -webkit-print-color-adjust:exact; print-color-adjust:exact;}
  #printArea summary h3{font-size:12pt; margin:0;}
  #printArea .lesson-body{display:block!important; padding:10px 16px 16px;}
  #printArea ul{padding-inline-start:22px;} #printArea li{margin-bottom:3px;}
  #printArea h4.act{display:inline-block; background:#444!important; color:#fff!important; border-radius:20px; padding:4px 14px; font-size:10pt; margin:14px 0 6px; -webkit-print-color-adjust:exact; print-color-adjust:exact;}
  #printArea table{width:100%; border-collapse:collapse; margin:10px 0; font-size:10pt;}
  #printArea table th{background:#333!important; color:#fff!important; padding:7px; -webkit-print-color-adjust:exact; print-color-adjust:exact;}
  #printArea table td{border:1px solid #999; padding:7px 9px; vertical-align:top;}
  #printArea table td:first-child{background:#eee!important; font-weight:800; -webkit-print-color-adjust:exact; print-color-adjust:exact;}
  #printArea .intro-block,#printArea .conclusion,#printArea .cpt,#printArea .tipcard,#printArea .fw{border:1px solid #999!important; background:#f7f7f7!important; border-radius:8px; padding:10px 14px; margin:8px 0; break-inside:avoid; -webkit-print-color-adjust:exact; print-color-adjust:exact;}
  #printArea .concepts,#printArea .fw-grid,#printArea .info-strip{display:block;}
  #printArea .tl{display:flex; flex-wrap:wrap; gap:6px; margin:8px 0;}
  #printArea .tl .ev{border:1px solid #555; border-radius:8px; padding:4px 10px; font-size:9pt; font-weight:800;}
  #printArea .hl,#printArea .k{background:#eee!important; font-weight:800; -webkit-print-color-adjust:exact; print-color-adjust:exact;}
  #printArea b{color:#000;}
}

/* ===== Professional site additions ===== */
.searchbox{margin-top:6px;}
.searchbox input{
  width:100%; border:none; border-radius:12px; padding:11px 14px; font-family:inherit; font-size:.88rem;
  background:rgba(255,255,255,.1); color:#F2EADB; outline:2px solid transparent; transition:outline .2s;
}
.searchbox input::placeholder{color:#B9AC92;}
.searchbox input:focus{outline:2px solid var(--gold);}
.sres{font-size:.7rem; color:var(--gold); margin-top:5px; min-height:1.2em;}
.apk-link{
  display:block; width:100%; text-align:center; text-decoration:none; font-weight:800; font-size:.78rem;
  background:linear-gradient(135deg,#3E8E5A,#2D6A4F); color:#fff; border-radius:10px; padding:10px 4px;
}
#menuBtn,#topBtn{
  position:fixed; z-index:90; border:none; cursor:pointer; width:50px; height:50px; border-radius:50%;
  background:#2E2820; color:var(--gold); font-size:1.25rem; box-shadow:0 6px 18px rgba(0,0,0,.3);
  display:none;
}
#menuBtn{top:14px; inset-inline-start:14px;}
#topBtn{bottom:18px; inset-inline-end:18px; display:grid; place-items:center; opacity:0; pointer-events:none; transition:opacity .3s;}
body.scrolled #topBtn{opacity:1; pointer-events:auto;}
@media(max-width:920px){
  #menuBtn{display:block;}
  aside{display:none;}
  body.navopen aside{display:block; position:fixed; inset:0; z-index:80; height:100vh;}
  main{padding-top:70px;}
}
/* search mode */
body.searching section.view{display:block!important;}
body.searching .view-head{display:none;}
body.searching details.lesson{display:none;}
body.searching details.lesson.hit{display:block;}
mark.sh{background:#FFE08A; color:#5A3A00; border-radius:3px; padding:0 2px;}
/* ===== Dark mode (مريح ليلا) ===== */
body.dark{
  --bg:#171A21; --card:#1F242E; --ink:#E8E4DC; --soft:#9AA3B2; --line:#2C3340;
  --hist-t:#2A2026; --geo-t:#1E2A24; --civ-t:#1D2733; --met-t:#2B2618; --tip-t:#1C2A29;
  --sh:0 4px 18px rgba(0,0,0,.4);
}
body.dark .welcome{background:linear-gradient(135deg,#1F242E,#252B37);}
body.dark .cpt{background:#252B37;}
body.dark table.tb{background:var(--card);}
body.dark table.tb tr:nth-child(even) td{background:#232936;}
body.dark .fw .n{color:#2C3340;}
body.dark .info-strip .it, body.dark .conclusion{background:var(--card);}
body.dark mark.sh{background:#7A5E12; color:#FFE9B0;}

/* أزرار قائمة الطباعة */
.pbtn{
  border:none; cursor:pointer; font-family:inherit; font-weight:800; font-size:.92rem;
  background:var(--tint,#F0E9DC); color:var(--ink); border-radius:12px; padding:12px 16px;
  text-align:start; transition:transform .12s, background .2s;
}
.pbtn:hover{transform:translateX(-3px); background:#EDE3D0;}
body.dark .pbtn{background:#2A313D;} body.dark .pbtn:hover{background:#323A47;}

/* زر طباعة عائم ظاهر على الجوال */
#printBtn{
  position:fixed; z-index:90; border:none; cursor:pointer; width:50px; height:50px; border-radius:50%;
  background:var(--gold); color:#2E2820; font-size:1.25rem; box-shadow:0 6px 18px rgba(0,0,0,.3);
  display:none; top:14px; inset-inline-start:74px;
}
@media(max-width:920px){ #printBtn{display:grid; place-items:center;} }