/*
Theme Name: حلول كتبي
Theme URI: https://hululkitab.org
Author: Hulul Kitab
Description: قالب عربي احترافي (RTL) لعرض وتحميل الكتب والحلول الدراسية بصيغة PDF.
Version: 1.0.0
License: GNU General Public License v2 or later
Text Domain: hululkitab
Tags: rtl-language-support, education, custom-menu, featured-images
*/

/* ============================ 1. المتغيرات ============================ */
:root{
	--brand:#12796F;
	--brand-dark:#0C5A53;
	--brand-light:#E6F3F1;
	--accent:#F0A33C;
	--accent-dark:#D98A22;
	--ink:#0F2A31;
	--body:#334A52;
	--muted:#6C858E;
	--line:#E3EAEC;
	--bg:#F6F9FA;
	--card:#FFFFFF;
	--radius:16px;
	--radius-sm:10px;
	--shadow:0 2px 4px rgba(15,42,49,.04), 0 8px 24px rgba(15,42,49,.06);
	--shadow-lg:0 8px 20px rgba(15,42,49,.08), 0 20px 48px rgba(15,42,49,.10);
	--max:1200px;
	--font:'Tajawal','Cairo',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
}

/* ============================ 2. أساسيات ============================ */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
	margin:0;font-family:var(--font);background:var(--bg);color:var(--body);
	font-size:16px;line-height:1.8;direction:rtl;text-align:right;
	-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4,h5{color:var(--ink);font-weight:800;line-height:1.4;margin:0 0 .6em}
h1{font-size:2.1rem}h2{font-size:1.6rem}h3{font-size:1.25rem}
p{margin:0 0 1em}
ul,ol{padding-inline-start:1.4em}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
.skip-link{position:absolute;top:-60px;right:10px;background:var(--brand);color:#fff;padding:10px 18px;border-radius:0 0 8px 8px;z-index:999}
.skip-link:focus{top:0;color:#fff}

/* ============================ 3. الأزرار ============================ */
.btn{
	display:inline-flex;align-items:center;justify-content:center;gap:8px;
	padding:12px 22px;border-radius:999px;font-weight:700;font-size:.95rem;
	border:0;cursor:pointer;transition:transform .15s, box-shadow .2s, background .2s;
	font-family:var(--font);white-space:nowrap;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(18,121,111,.28)}
.btn-primary:hover{background:var(--brand-dark);color:#fff}
.btn-accent{background:var(--accent);color:#3A2606;box-shadow:0 6px 16px rgba(240,163,60,.35)}
.btn-accent:hover{background:var(--accent-dark);color:#3A2606}
.btn-ghost{background:#fff;color:var(--brand);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-dark)}
.btn-block{width:100%}
.btn-lg{padding:15px 30px;font-size:1.05rem}

/* ============================ 4. الهيدر ============================ */
.site-header{
	background:#fff;position:sticky;top:0;z-index:100;
	border-bottom:1px solid var(--line);
}
.site-header.scrolled{box-shadow:0 4px 20px rgba(15,42,49,.08)}
.header-inner{display:flex;align-items:center;gap:24px;height:76px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
	width:44px;height:44px;border-radius:12px;flex-shrink:0;
	background:linear-gradient(135deg,var(--brand),#1A9E8F);
	display:grid;place-items:center;color:#fff;font-size:22px;
	box-shadow:0 4px 12px rgba(18,121,111,.3);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-weight:800;font-size:1.25rem;color:var(--ink)}
.brand-tag{font-size:.72rem;color:var(--muted);font-weight:500}

.main-nav{margin-inline-start:auto}
.main-nav ul{display:flex;gap:6px;list-style:none;margin:0;padding:0}
.main-nav a{
	display:block;padding:9px 15px;border-radius:10px;color:var(--body);
	font-weight:600;font-size:.95rem;
}
.main-nav a:hover,.main-nav .current-menu-item>a{background:var(--brand-light);color:var(--brand-dark)}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
	width:42px;height:42px;border-radius:12px;border:1.5px solid var(--line);background:#fff;
	display:grid;place-items:center;cursor:pointer;color:var(--body);font-size:18px;transition:.2s;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand)}
.nav-toggle{display:none}

/* بحث منسدل */
.header-search{display:none;padding:16px 0;border-top:1px solid var(--line);background:#fff}
.header-search.open{display:block}
.header-search form{display:flex;gap:8px;max-width:640px;margin:0 auto}
.header-search input{
	flex:1;padding:13px 18px;border:1.5px solid var(--line);border-radius:999px;
	font-family:var(--font);font-size:1rem;outline:none;
}
.header-search input:focus{border-color:var(--brand)}

/* ============================ 5. الهيرو ============================ */
.hero{
	position:relative;overflow:hidden;color:#fff;
	background:linear-gradient(135deg,#0C5A53 0%,#12796F 55%,#1A9E8F 100%);
	padding:70px 0 90px;
}
.hero::before{
	content:'';position:absolute;inset:0;opacity:.10;
	background-image:radial-gradient(circle at 20% 30%,#fff 2px,transparent 2px),radial-gradient(circle at 70% 70%,#fff 2px,transparent 2px);
	background-size:60px 60px;
}
.hero-inner{position:relative;text-align:center;max-width:800px;margin:0 auto}
.hero-badge{
	display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.16);
	padding:7px 18px;border-radius:999px;font-size:.85rem;font-weight:600;margin-bottom:18px;
	backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.2);
}
.hero h1{color:#fff;font-size:2.7rem;margin-bottom:14px;line-height:1.35}
.hero h1 span{color:var(--accent)}
.hero p.lead{font-size:1.15rem;color:rgba(255,255,255,.9);margin-bottom:32px}

.hero-search{
	background:#fff;border-radius:999px;padding:8px;display:flex;gap:8px;
	box-shadow:0 18px 40px rgba(0,0,0,.18);max-width:660px;margin:0 auto;
}
.hero-search input{
	flex:1;border:0;outline:none;padding:14px 22px;font-family:var(--font);
	font-size:1.05rem;background:transparent;color:var(--ink);
}
.hero-search input::placeholder{color:#9BB0B7}

.hero-chips{display:flex;flex-wrap:wrap;gap:9px;justify-content:center;margin-top:24px}
.hero-chips a{
	background:rgba(255,255,255,.14);color:#fff;padding:8px 17px;border-radius:999px;
	font-size:.87rem;font-weight:600;border:1px solid rgba(255,255,255,.22);transition:.2s;
}
.hero-chips a:hover{background:#fff;color:var(--brand-dark)}

/* ============================ 6. شريط الإحصائيات ============================ */
.stats{margin-top:-46px;position:relative;z-index:5}
.stats-inner{
	background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);
	display:grid;grid-template-columns:repeat(4,1fr);padding:26px 10px;
}
.stat{text-align:center;padding:6px 12px;border-inline-start:1px solid var(--line)}
.stat:first-child{border:0}
.stat-num{font-size:1.9rem;font-weight:800;color:var(--brand);line-height:1.2}
.stat-label{font-size:.85rem;color:var(--muted);font-weight:600}

/* ============================ 7. الأقسام ============================ */
.section{padding:64px 0}
.section-head{text-align:center;max-width:640px;margin:0 auto 40px}
.section-head .eyebrow{
	display:inline-block;color:var(--brand);background:var(--brand-light);
	padding:5px 16px;border-radius:999px;font-size:.8rem;font-weight:700;margin-bottom:12px;
}
.section-head h2{margin-bottom:10px}
.section-head p{color:var(--muted);margin:0}
.section-alt{background:#fff}
.section-foot{text-align:center;margin-top:38px}

/* ============================ 8. بطاقات الكتب ============================ */
.hk-grid-books{
	display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:24px;
}
.book-card{
	background:var(--card);border-radius:var(--radius);overflow:hidden;
	box-shadow:var(--shadow);display:flex;flex-direction:column;
	transition:transform .25s, box-shadow .25s;border:1px solid var(--line);
}
.book-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.book-cover{
	position:relative;aspect-ratio:3/4;overflow:hidden;background:var(--brand-light);
	display:grid;place-items:center;
}
.book-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.book-card:hover .book-cover img{transform:scale(1.05)}
.book-cover-fallback{
	width:100%;height:100%;display:grid;place-items:center;gap:10px;
	background:linear-gradient(150deg,#E6F3F1,#CFE7E3);color:var(--brand-dark);
	font-size:44px;
}
.book-badge{
	position:absolute;top:12px;inset-inline-start:12px;background:rgba(15,42,49,.82);
	color:#fff;padding:5px 12px;border-radius:999px;font-size:.72rem;font-weight:700;
	backdrop-filter:blur(4px);
}
.book-badge.accent{background:var(--accent);color:#3A2606}
.book-body{padding:16px;display:flex;flex-direction:column;flex:1;gap:10px}
.book-title{font-size:1.02rem;font-weight:700;line-height:1.5;margin:0}
.book-title a{color:var(--ink)}
.book-title a:hover{color:var(--brand)}
.book-meta{display:flex;flex-wrap:wrap;gap:6px;font-size:.75rem;color:var(--muted)}
.book-meta span{background:var(--bg);padding:3px 10px;border-radius:8px}
.book-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:8px;padding-top:6px}
.book-dl{font-size:.75rem;color:var(--muted);display:flex;align-items:center;gap:4px}
.btn-sm{padding:9px 16px;font-size:.82rem}

/* ============================ 9. شبكة التصنيفات ============================ */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:18px}
.cat-card{
	background:#fff;border:1px solid var(--line);border-radius:var(--radius);
	padding:24px 18px;text-align:center;transition:.25s;box-shadow:var(--shadow);
}
.cat-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--shadow-lg)}
.cat-icon{
	width:56px;height:56px;margin:0 auto 14px;border-radius:16px;display:grid;place-items:center;
	background:var(--brand-light);color:var(--brand);font-size:26px;
}
.cat-card h3{font-size:1.02rem;margin-bottom:4px}
.cat-card span{font-size:.8rem;color:var(--muted)}

/* ============================ 10. المزايا ============================ */
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:26px}
.feature{text-align:center;padding:26px 18px}
.feature-icon{
	width:64px;height:64px;margin:0 auto 16px;border-radius:20px;display:grid;place-items:center;
	background:linear-gradient(135deg,var(--brand),#1A9E8F);color:#fff;font-size:28px;
	box-shadow:0 8px 20px rgba(18,121,111,.25);
}
.feature h3{font-size:1.1rem}
.feature p{color:var(--muted);font-size:.93rem;margin:0}

/* ============================ 11. CTA ============================ */
.cta{
	background:linear-gradient(135deg,var(--ink),#1B4650);color:#fff;border-radius:24px;
	padding:52px 40px;text-align:center;position:relative;overflow:hidden;
}
.cta h2{color:#fff}
.cta p{color:rgba(255,255,255,.82);max-width:520px;margin:0 auto 26px}

/* ============================ 12. صفحة الكتاب ============================ */
.page-head{background:#fff;border-bottom:1px solid var(--line);padding:30px 0}
.breadcrumb{font-size:.85rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}

.book-single{display:grid;grid-template-columns:320px 1fr;gap:40px;padding:44px 0}
.book-side{position:sticky;top:100px;align-self:start}
.book-side-cover{
	border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg);
	aspect-ratio:3/4;background:var(--brand-light);
}
.book-side-cover img{width:100%;height:100%;object-fit:cover}
.book-actions{display:flex;flex-direction:column;gap:10px;margin-top:18px}
.book-info-box{
	background:#fff;border:1px solid var(--line);border-radius:var(--radius);
	padding:6px 18px;margin-top:18px;box-shadow:var(--shadow);
}
.book-info-box .row{
	display:flex;justify-content:space-between;gap:12px;padding:11px 0;
	border-bottom:1px dashed var(--line);font-size:.9rem;
}
.book-info-box .row:last-child{border:0}
.book-info-box .row b{color:var(--ink);font-weight:700}
.book-info-box .row span{color:var(--muted)}

.book-main h1{font-size:2rem;margin-bottom:14px}
.book-terms{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.term-pill{
	background:var(--brand-light);color:var(--brand-dark);padding:6px 14px;
	border-radius:999px;font-size:.82rem;font-weight:600;
}
.term-pill:hover{background:var(--brand);color:#fff}
.entry-content{font-size:1.03rem;line-height:2}
.entry-content h2,.entry-content h3{margin-top:1.6em}
.entry-content img{border-radius:var(--radius);margin:1.4em 0}
.entry-content blockquote{
	border-inline-start:4px solid var(--brand);background:#fff;margin:1.5em 0;
	padding:16px 22px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--ink);
}
.entry-content table{width:100%;border-collapse:collapse;margin:1.4em 0}
.entry-content th,.entry-content td{border:1px solid var(--line);padding:10px 14px;text-align:right}
.entry-content th{background:var(--brand-light);color:var(--ink)}

.pdf-viewer{
	margin:32px 0;border:1px solid var(--line);border-radius:var(--radius);
	overflow:hidden;background:#fff;box-shadow:var(--shadow);
}
.pdf-viewer-head{
	display:flex;align-items:center;justify-content:space-between;gap:12px;
	padding:14px 18px;border-bottom:1px solid var(--line);background:#FAFCFC;
}
.pdf-viewer-head strong{color:var(--ink);font-size:.95rem}
.pdf-viewer iframe{width:100%;height:760px;border:0;display:block;background:#525659}
.official-note{
	font-size:.8rem;color:var(--muted);margin:12px 0 0;display:flex;gap:6px;align-items:flex-start;line-height:1.6;
}
.official-box{
	background:linear-gradient(150deg,#F2FAF8,#E6F3F1);border:1px solid #BFE0DA;
	border-radius:var(--radius);padding:28px;margin:28px 0;
}
.official-box h2{display:flex;align-items:center;gap:8px;font-size:1.15rem}
.pdf-missing{
	background:#FFF8EC;border:1px dashed var(--accent);border-radius:var(--radius);
	padding:22px;text-align:center;color:#8A6417;margin:26px 0;
}

/* ============================ 13. أرشيف + فلترة ============================ */
.archive-layout{display:grid;grid-template-columns:280px 1fr;gap:34px;padding:36px 0 64px}
.filter-panel{
	background:#fff;border:1px solid var(--line);border-radius:var(--radius);
	padding:22px;box-shadow:var(--shadow);position:sticky;top:100px;align-self:start;
	max-height:calc(100vh - 130px);overflow-y:auto;
}
.filter-group{margin-bottom:22px}
.filter-group:last-child{margin-bottom:0}
.filter-group h4{font-size:.95rem;margin-bottom:10px;padding-bottom:8px;border-bottom:1px solid var(--line)}
.filter-group select,.filter-group input[type=search]{
	width:100%;padding:11px 14px;border:1.5px solid var(--line);border-radius:var(--radius-sm);
	font-family:var(--font);font-size:.9rem;background:#fff;color:var(--body);outline:none;
}
.filter-group select:focus,.filter-group input:focus{border-color:var(--brand)}
.filter-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.filter-links a{
	display:flex;justify-content:space-between;padding:7px 10px;border-radius:8px;
	font-size:.89rem;color:var(--body);
}
.filter-links a:hover,.filter-links .active a{background:var(--brand-light);color:var(--brand-dark);font-weight:600}
.filter-links .count{color:var(--muted);font-size:.78rem}

.archive-toolbar{
	display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
	background:#fff;border:1px solid var(--line);border-radius:var(--radius);
	padding:14px 20px;margin-bottom:24px;box-shadow:var(--shadow);
}
.archive-toolbar .count{font-size:.9rem;color:var(--muted)}
.sort-links{display:flex;gap:6px}
.sort-links a{
	padding:7px 14px;border-radius:999px;font-size:.85rem;font-weight:600;
	background:var(--bg);color:var(--body);
}
.sort-links a.active{background:var(--brand);color:#fff}
.filter-toggle{display:none}

/* ترقيم الصفحات */
.pagination{display:flex;justify-content:center;gap:6px;margin-top:40px;flex-wrap:wrap}
.pagination .page-numbers{
	min-width:42px;height:42px;display:grid;place-items:center;padding:0 12px;
	background:#fff;border:1px solid var(--line);border-radius:10px;
	color:var(--body);font-weight:600;
}
.pagination .page-numbers:hover{border-color:var(--brand);color:var(--brand)}
.pagination .current{background:var(--brand);border-color:var(--brand);color:#fff}

.hk-empty{
	background:#fff;border:1px dashed var(--line);border-radius:var(--radius);
	padding:46px 24px;text-align:center;color:var(--muted);
}
.hk-empty h3{margin-bottom:8px;font-size:1.15rem}
.hk-empty p{max-width:460px;margin:0 auto 20px;font-size:.93rem}
.empty-icon{
	width:66px;height:66px;margin:0 auto 16px;border-radius:20px;display:grid;place-items:center;
	background:var(--brand-light);color:var(--brand);
}
.empty-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}

/* ============================ 14. الفوتر ============================ */
.site-footer{background:var(--ink);color:#B7C9CF;margin-top:60px}
.footer-top{padding:56px 0 36px;display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.site-footer h4{color:#fff;font-size:1rem;margin-bottom:16px}
.site-footer p{font-size:.9rem;line-height:1.9;margin:0 0 14px}
.site-footer a{color:#B7C9CF}
.site-footer a:hover{color:var(--accent)}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px;font-size:.9rem}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand .brand-name{color:#fff}
.social{display:flex;gap:10px;margin-top:14px}
.social a{
	width:38px;height:38px;border-radius:11px;background:rgba(255,255,255,.08);
	display:grid;place-items:center;font-size:16px;transition:.2s;
}
.social a:hover{background:var(--brand);color:#fff}
.footer-bottom{
	border-top:1px solid rgba(255,255,255,.1);padding:20px 0;
	display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.85rem;
}

/* ============================ 15. أدوات ============================ */
.notice-box{
	background:#fff;border-inline-start:4px solid var(--brand);border-radius:var(--radius-sm);
	padding:16px 20px;margin:20px 0;box-shadow:var(--shadow);
}
.back-top{
	position:fixed;bottom:24px;inset-inline-start:24px;width:46px;height:46px;border-radius:14px;
	background:var(--brand);color:#fff;display:grid;place-items:center;border:0;cursor:pointer;
	opacity:0;visibility:hidden;transition:.25s;z-index:90;box-shadow:0 8px 20px rgba(18,121,111,.35);
}
.back-top.show{opacity:1;visibility:visible}

/* نموذج التواصل */
.wpcf7 input[type=text],.wpcf7 input[type=email],.wpcf7 textarea{
	width:100%;padding:12px 16px;border:1.5px solid var(--line);border-radius:var(--radius-sm);
	font-family:var(--font);margin-bottom:12px;
}
.wpcf7 input[type=submit]{
	background:var(--brand);color:#fff;border:0;padding:13px 30px;border-radius:999px;
	font-family:var(--font);font-weight:700;cursor:pointer;
}

/* ============================ 17. الأغلفة التلقائية ============================ */
.hk-auto-cover{
	width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;
	gap:6px;padding:18px 12px;text-align:center;color:#fff;
	background:linear-gradient(150deg,var(--c1),var(--c2));position:relative;overflow:hidden;
}
.hk-auto-cover::after{
	content:'';position:absolute;inset-inline-start:-30%;top:-40%;width:120%;height:70%;
	background:rgba(255,255,255,.10);transform:rotate(-18deg);
}
.hk-auto-glyph{font-size:2.6rem;line-height:1;opacity:.95;position:relative}
.hk-auto-subject{font-size:1.05rem;font-weight:800;line-height:1.4;position:relative}
.hk-auto-grade{font-size:.82rem;opacity:.92;position:relative}
.hk-auto-type{
	font-size:.72rem;background:rgba(255,255,255,.2);padding:3px 12px;border-radius:999px;
	margin-top:4px;position:relative;backdrop-filter:blur(4px);
}
.book-side-cover .hk-auto-glyph{font-size:4rem}
.book-side-cover .hk-auto-subject{font-size:1.4rem}

/* ============================ 18. زر التحميل داخل البطاقة ============================ */
.card-dl{margin-top:2px}
.book-preview{font-size:.75rem;color:var(--muted);display:flex;align-items:center;gap:4px}
.book-preview:hover{color:var(--brand)}

/* ============================ 19. مفتاح الفصل الدراسي ============================ */
.term-switch{background:var(--brand-light);border-top:1px solid rgba(18,121,111,.12)}
.term-switch-inner{display:flex;align-items:center;gap:8px;padding:9px 20px;overflow-x:auto;scrollbar-width:none}
.term-switch-inner::-webkit-scrollbar{display:none}
.term-switch-label{font-size:.82rem;color:var(--brand-dark);font-weight:700;white-space:nowrap}
.term-switch a{
	padding:6px 15px;border-radius:999px;font-size:.83rem;font-weight:600;
	background:#fff;color:var(--body);white-space:nowrap;border:1px solid transparent;
}
.term-switch a:hover{border-color:var(--brand);color:var(--brand-dark)}
.term-switch a.active{background:var(--brand);color:#fff}

/* ============================ 20. شبكة المواد داخل الصف ============================ */
.subject-grid-title{font-size:1.15rem;margin-bottom:14px}
.subject-grid{
	display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:14px;margin-bottom:32px;
}
.subject-card{
	display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
	padding:20px 12px;border-radius:var(--radius);color:#fff;text-align:center;
	background:linear-gradient(150deg,var(--c1),var(--c2));
	box-shadow:var(--shadow);transition:transform .2s, box-shadow .2s;
}
.subject-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);color:#fff}
.subject-glyph{font-size:1.9rem;line-height:1}
.subject-name{font-weight:700;font-size:.92rem}

.subject-count{font-size:.74rem;opacity:.9;background:rgba(255,255,255,.2);padding:2px 10px;border-radius:999px}

/* ============================ 20ب. مجموعات المراحل ============================ */
.stage-block{margin-bottom:40px}
.stage-block:last-child{margin-bottom:0}
.stage-title{
	display:flex;align-items:center;justify-content:space-between;gap:12px;
	font-size:1.12rem;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--line);
}
.stage-all{font-size:.83rem;font-weight:600;color:var(--brand)}
.cat-card.stage-ibtidai .cat-icon{background:#DCF2EE;color:#0C5A53}
.cat-card.stage-mutawasit .cat-icon{background:#E0EBFF;color:#1D4ED8}
.cat-card.stage-thanawi .cat-icon{background:#FDECD8;color:#B45309}

/* ============================ 20ج. أقسام المادة ============================ */
.section-nav{margin-bottom:28px}

.section-group{margin-bottom:22px}
.section-group-title{
	display:flex;align-items:center;gap:7px;font-size:.9rem;color:var(--muted);
	font-weight:700;margin:0 0 12px;padding-bottom:8px;border-bottom:1px solid var(--line);
}
.section-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(235px,1fr));gap:12px}

.section-card{
	display:flex;align-items:center;gap:14px;padding:18px 16px;position:relative;overflow:hidden;
	border-radius:var(--radius);border:0;color:#fff;
	background:linear-gradient(140deg, var(--sc), color-mix(in srgb, var(--sc) 62%, #000));
	box-shadow:0 4px 14px color-mix(in srgb, var(--sc) 30%, transparent);
	transition:transform .2s, box-shadow .2s, filter .2s;
}
/* لمعة زخرفية تعطي إحساس البطاقة المصمّمة */
.section-card::before{
	content:'';position:absolute;inset-inline-start:-25%;top:-60%;width:70%;height:200%;
	background:rgba(255,255,255,.13);transform:rotate(22deg);pointer-events:none;
}
.section-card:hover{
	transform:translateY(-4px);color:#fff;
	box-shadow:0 10px 26px color-mix(in srgb, var(--sc) 42%, transparent);
}
.section-card.active{outline:3px solid #fff;outline-offset:-3px;box-shadow:0 0 0 3px var(--sc), 0 10px 26px color-mix(in srgb, var(--sc) 42%, transparent)}
.section-card.is-empty{filter:saturate(.35) brightness(.97);box-shadow:none}
.section-card.is-empty:hover{filter:none}

.section-icon{
	width:56px;height:56px;flex:0 0 56px;border-radius:16px;display:grid;place-items:center;
	background:rgba(255,255,255,.18);color:#fff;transition:transform .2s;
	backdrop-filter:blur(3px);position:relative;
}
.section-card:hover .section-icon{transform:scale(1.07) rotate(-4deg)}
.section-icon svg{width:40px;height:40px}
.section-text{display:flex;flex-direction:column;gap:3px;min-width:0;flex:1;position:relative}
.section-name{font-weight:800;font-size:1rem;color:#fff;line-height:1.35}
.section-desc{font-size:.75rem;color:rgba(255,255,255,.85);line-height:1.45}
.section-count{
	flex:0 0 auto;min-width:30px;height:28px;padding:0 10px;border-radius:999px;position:relative;
	display:grid;place-items:center;font-size:.8rem;font-weight:800;
	background:rgba(255,255,255,.22);color:#fff;
}

@supports not (background: color-mix(in srgb, red 10%, white)){
	.section-card{background:var(--sc);box-shadow:var(--shadow)}
	.section-card:hover{box-shadow:var(--shadow-lg)}
	.section-card.active{box-shadow:0 0 0 3px var(--sc)}
}

.section-footer{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:6px}
.back-to-grade{font-size:.85rem;color:var(--muted);font-weight:600}
.back-to-grade:hover{color:var(--brand)}

@supports not (background: color-mix(in srgb, red 10%, white)){
	.section-icon{background:var(--brand-light)}
	.section-card.active{background:#F4FAF9}
}

/* ============================ 20د. المسارات والوحدات ============================ */
.track-hint{color:var(--muted);font-size:.9rem;margin:-6px 0 16px}
.track-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:16px;margin-bottom:30px}
.track-card{
	background:#fff;border:1.5px solid var(--line);border-radius:var(--radius);
	padding:22px 18px;display:flex;flex-direction:column;gap:6px;box-shadow:var(--shadow);
	transition:.22s;position:relative;overflow:hidden;
}
.track-card::before{content:'';position:absolute;inset-inline-start:0;top:0;bottom:0;width:5px;background:linear-gradient(180deg,var(--brand),var(--accent))}
.track-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--shadow-lg)}
.track-name{font-weight:800;color:var(--ink);font-size:1rem}
.track-count{font-size:.8rem;color:var(--muted)}

.units-title{font-size:1rem;margin:18px 0 10px;color:var(--ink)}
.unit-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(165px,1fr));gap:12px;margin-bottom:18px}
.unit-card{
	background:var(--brand-light);border:1.5px solid transparent;border-radius:var(--radius-sm);
	padding:14px 16px;display:flex;flex-direction:column;gap:3px;transition:.2s;
}
.unit-card:hover{border-color:var(--brand);transform:translateY(-2px)}
.unit-card.active{background:var(--brand);border-color:var(--brand)}
.unit-card.active .unit-name,.unit-card.active .unit-meta{color:#fff}
.unit-name{font-weight:700;font-size:.92rem;color:var(--brand-dark)}
.unit-meta{font-size:.75rem;color:var(--muted)}

/* ============================ 21. المشاركة ============================ */
.hk-share{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin:0 0 24px}
.hk-share-label{font-size:.85rem;color:var(--muted);font-weight:600}
.hk-share-btn{
	padding:7px 15px;border-radius:999px;font-size:.8rem;font-weight:700;color:#fff;
	border:0;cursor:pointer;font-family:var(--font);transition:.2s;
}
.hk-share-btn:hover{opacity:.88;color:#fff;transform:translateY(-1px)}
.hk-share-btn.wa{background:#25D366}
.hk-share-btn.tg{background:#229ED9}
.hk-share-btn.tw{background:#0F1419}
.hk-share-btn.copy{background:var(--bg);color:var(--body);border:1.5px solid var(--line)}
.hk-share-btn.copy:hover{color:var(--brand);border-color:var(--brand)}

/* ============================ 22. شريط التحميل في الجوال ============================ */
.mobile-dl-bar{
	display:none;position:fixed;bottom:0;inset-inline:0;z-index:95;
	background:#fff;border-top:1px solid var(--line);padding:10px 16px;
	box-shadow:0 -6px 22px rgba(15,42,49,.12);
	align-items:center;justify-content:space-between;gap:12px;
}
.mobile-dl-info{display:flex;flex-direction:column;line-height:1.3;overflow:hidden}
.mobile-dl-info strong{font-size:.87rem;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mobile-dl-info span{font-size:.74rem;color:var(--muted)}

/* ============================ 16. استجابة الشاشات ============================ */
@media(max-width:1024px){
	.book-single{grid-template-columns:260px 1fr;gap:28px}
	.archive-layout{grid-template-columns:240px 1fr}
	.footer-top{grid-template-columns:1fr 1fr}
}
@media(max-width:860px){
	.nav-toggle{display:grid}
	.main-nav{
		position:fixed;inset:76px 0 auto 0;background:#fff;margin:0;
		border-bottom:1px solid var(--line);box-shadow:var(--shadow-lg);
		max-height:0;overflow:hidden;transition:max-height .3s;
	}
	.main-nav.open{max-height:70vh;overflow-y:auto}
	.main-nav ul{flex-direction:column;padding:12px;gap:2px}
	.main-nav a{padding:13px 16px}
	.hero h1{font-size:1.85rem}
	.hero p.lead{font-size:1rem}
	.stats-inner{grid-template-columns:repeat(2,1fr);gap:6px}
	.stat:nth-child(3){border:0}
	.book-single{grid-template-columns:1fr}
	.book-side{position:static;max-width:300px;margin:0 auto}
	.archive-layout{grid-template-columns:1fr}
	.filter-panel{position:static;display:none;max-height:none}
	.filter-panel.open{display:block}
	.filter-toggle{display:inline-flex}
	.pdf-viewer iframe{height:520px}
	.mobile-dl-bar{display:flex}
	body.single-book{padding-bottom:78px}
	.back-top{bottom:88px}
	.footer-top{grid-template-columns:1fr;gap:26px}
	.section{padding:48px 0}
	h1{font-size:1.7rem}h2{font-size:1.4rem}
}
@media(max-width:520px){
	.hk-grid-books{grid-template-columns:repeat(2,1fr);gap:14px}
	.book-body{padding:12px}
	.book-title{font-size:.9rem}
	.hero-search{flex-direction:column;border-radius:20px}
	.hero-search .btn{width:100%}
	.brand-tag{display:none}
	.cta{padding:36px 22px}
}