:root{
  --navy:#1F3864; --navy-2:#16294a; --red:#C00000; --red-2:#a00000;
  --ink:#1c2430; --muted:#5b6573; --bg:#f3f5f8; --card:#ffffff;
  --line:#dde3ea; --soft:#eef2f7; --green:#2e6b3f; --gold:#9a7400;
  --radius:16px; --shadow:0 8px 28px rgba(20,32,55,.07);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
html[lang="ar"] body{font-family:"Segoe UI",Tahoma,"Arial",sans-serif;line-height:1.8}
a{color:var(--navy);text-decoration:none}
a:hover{color:var(--red)}
img{max-width:100%}
.wrap{max-width:1320px;margin:0 auto;padding:0 24px}

/* top bar */
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.topbar .wrap{height:68px;display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.5px;color:var(--navy);font-size:20px}
.brand .mark{background:var(--navy);color:#fff;padding:4px 9px;border-radius:6px;font-style:italic}
.brand .ksa{color:var(--red);font-size:12px;letter-spacing:2px;font-weight:700}
.topnav{margin-inline-start:auto;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.topnav a{padding:8px 11px;border-radius:9px;font-size:14px;color:var(--muted);font-weight:600}
.topnav a:hover{background:var(--soft);color:var(--navy)}
.topnav a.lang{border:1px solid var(--line);color:var(--navy)}
.topnav a.pdf{background:var(--red);color:#fff}
.topnav a.pdf:hover{background:var(--red-2);color:#fff}

/* layout */
.shell{display:flex;gap:28px;align-items:flex-start;padding-top:26px;padding-bottom:60px}
.sidebar{width:262px;flex:0 0 262px;position:sticky;top:90px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.side-label{font-size:11px;letter-spacing:1.8px;text-transform:uppercase;color:var(--muted);font-weight:700;margin:6px 8px 8px}
.side-link{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:10px;font-size:14px;color:#334155;font-weight:600;line-height:1.35}
.side-link .num{display:inline-flex;align-items:center;justify-content:center;min-width:26px;height:26px;border-radius:7px;background:var(--soft);color:var(--navy);font-size:11px;font-weight:800}
.side-link:hover{background:var(--soft)}
.side-link.active{background:var(--navy);color:#fff}
.side-link.active .num{background:var(--red);color:#fff}
.side-sep{height:1px;background:var(--line);margin:12px 6px}
.side-note{font-size:11.5px;color:var(--muted);padding:6px 8px 0;line-height:1.5}
.main{flex:1;min-width:0}

/* hero */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 65%,#0e1d36 100%);color:#fff;border-radius:22px;padding:40px 40px 34px;position:relative;overflow:hidden;box-shadow:0 18px 44px rgba(22,41,74,.22)}
.hero:after{content:"";position:absolute;inset-inline-end:-80px;top:-80px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(192,0,0,.35),transparent 65%)}
.hero .kicker{font-size:11px;letter-spacing:2.6px;color:#ffb3b3;font-weight:800;text-transform:uppercase}
.hero h1{font-size:38px;line-height:1.12;margin:10px 0 10px;color:#fff;letter-spacing:-.5px}
.hero p{font-size:16px;color:#d7dfeb;max-width:780px;margin:0 0 18px}
.badge{display:inline-block;background:var(--red);color:#fff;font-weight:800;font-size:13px;letter-spacing:.8px;padding:8px 14px;border-radius:9px}
.badge.soft{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25)}
.stats{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-top:24px;position:relative;z-index:2}
.stat{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:13px;padding:13px 14px}
.stat .n{font-size:23px;font-weight:800;color:#fff;line-height:1.1}
.stat .l{font-size:11.5px;color:#c7d2e2;line-height:1.35;margin-top:4px}

/* cards */
.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin:32px 0 14px}
.section-head h2{font-size:22px;color:var(--navy);margin:0}
.section-head p{color:var(--muted);font-size:13.5px;margin:3px 0 0}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px 18px 16px;box-shadow:var(--shadow);transition:transform .15s ease,border-color .15s ease}
.card:hover{transform:translateY(-2px);border-color:#c7d2e2}
.card .num{font-size:12px;font-weight:800;color:var(--red);letter-spacing:1px}
.card h3{font-size:16.5px;color:var(--navy);margin:6px 0 6px;line-height:1.3}
.card p{font-size:13.4px;color:var(--muted);margin:0}
.card .more{display:inline-block;margin-top:10px;font-size:12.5px;font-weight:700;color:var(--navy)}

/* charts preview */
.chart-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px}
.chart-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.chart-card img{display:block;width:100%;height:210px;object-fit:contain;background:#fff;padding:10px}
.chart-card .body{padding:13px 15px 15px}
.chart-card h3{font-size:14.5px;margin:0 0 4px;color:var(--navy)}
.chart-card p{font-size:12.5px;color:var(--muted);margin:0}

/* downloads */
.downloads{display:flex;flex-wrap:wrap;gap:10px}
.dl{display:inline-flex;align-items:center;gap:9px;background:var(--card);border:1px solid var(--line);border-radius:11px;padding:10px 14px;font-size:13.5px;font-weight:700;color:var(--navy);box-shadow:var(--shadow)}
.dl:hover{border-color:var(--red);color:var(--red)}
.dl small{display:block;font-weight:500;color:var(--muted);font-size:11px}

/* article */
.article{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:38px 42px;box-shadow:var(--shadow);margin-top:18px}
.crumb{font-size:12px;color:var(--muted);font-weight:700;letter-spacing:1px;text-transform:uppercase}
.article h1{font-size:34px;line-height:1.18;color:var(--navy);margin:6px 0 8px;letter-spacing:-.4px}
.article .meta{font-size:12.5px;color:var(--muted);padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:18px}
.article h2{font-size:22px;color:var(--navy);margin:30px 0 10px;padding-inline-start:12px;border-inline-start:4px solid var(--red);line-height:1.3;scroll-margin-top:90px}
.article h3{font-size:17px;color:var(--navy);margin:22px 0 7px;scroll-margin-top:90px}
.article p{margin:8px 0}
.article ul,.article ol{margin:8px 0 12px;padding-inline-start:22px}
.article li{margin:4px 0}
.article blockquote{margin:14px 0;padding:13px 17px;background:#fff5f5;border-inline-start:4px solid var(--red);border-radius:0 10px 10px 0;color:#3b2730}
html[dir="rtl"] .article blockquote{border-radius:10px 0 0 10px}
.article blockquote p{margin:3px 0}
.article table{width:100%;border-collapse:collapse;font-size:13.2px;margin:12px 0 16px}
.article th{background:var(--navy);color:#fff;text-align:start;padding:8px 9px;font-weight:700;border:1px solid var(--navy)}
.article td{border:1px solid #cfd8e3;padding:7px 9px;vertical-align:top}
.article tr:nth-child(even) td{background:#f7f9fc}
.article table strong{color:var(--navy)}
.table-wrap{overflow-x:auto;margin:12px 0 16px;border-radius:10px}
.table-wrap table{margin:0}
.article img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:12px;background:#fff;margin:14px 0 4px}
.article em{color:#666}
.article code{background:#eef2f7;padding:1px 5px;border-radius:5px;font-family:Consolas,monospace;font-size:.9em}
.article hr{border:none;border-top:1px solid var(--line);margin:26px 0}
.page-toc{background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:12px 15px;margin:4px 0 20px}
.page-toc .lbl{font-size:10.5px;letter-spacing:1.6px;text-transform:uppercase;color:var(--muted);font-weight:800}
.page-toc a{display:inline-block;font-size:12.8px;margin:5px 12px 0 0;color:#334155;font-weight:600}
html[dir="rtl"] .page-toc a{margin:5px 0 0 12px}
.pager{display:flex;justify-content:space-between;gap:12px;margin-top:26px}
.pager a{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 16px;font-size:13.5px;font-weight:700;box-shadow:var(--shadow);max-width:48%}
.pager a span{display:block;font-size:10.5px;letter-spacing:1.4px;text-transform:uppercase;color:var(--muted);font-weight:800}
.pager a.next{text-align:end;margin-inline-start:auto}

/* mobile menu */
.mobile-menu{display:none;margin:14px 0 0;background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
.mobile-menu summary{padding:13px 16px;font-weight:800;color:var(--navy);cursor:pointer}
.mobile-menu .inner{padding:0 10px 12px}
.mobile-menu a{display:block;padding:8px 10px;border-radius:8px;font-size:14px;color:#334155}
.mobile-menu a:hover{background:var(--soft)}

/* footer */
.footer{border-top:1px solid var(--line);background:#fff;padding:26px 0;color:var(--muted);font-size:12.5px}
.footer .wrap{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center}
.footer a{font-weight:700}

/* lightbox */
.lightbox{position:fixed;inset:0;background:rgba(8,14,26,.86);display:none;align-items:center;justify-content:center;z-index:100;padding:24px;cursor:zoom-out}
.lightbox.open{display:flex}
.lightbox img{max-width:96vw;max-height:92vh;border-radius:10px;background:#fff}

/* chooser */
.chooser{min-height:100vh;display:flex;flex-direction:column;background:linear-gradient(135deg,#16294a,#1F3864 60%,#0e1d36);color:#fff}
.chooser .top{max-width:1100px;margin:0 auto;width:100%;padding:34px 24px 10px;display:flex;justify-content:space-between;align-items:center}
.chooser .brand{color:#fff}
.chooser .brand .mark{background:#fff;color:var(--navy)}
.chooser .panels{flex:1;display:flex;align-items:center;max-width:1100px;margin:0 auto;width:100%;padding:20px 24px 50px;gap:16px}
.panel{flex:1;min-height:430px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);border-radius:22px;padding:34px;display:flex;flex-direction:column;justify-content:space-between;transition:background .2s}
.panel:hover{background:rgba(255,255,255,.11)}
.panel .lang{font-size:12px;letter-spacing:2px;color:#ffb3b3;font-weight:800;text-transform:uppercase}
.panel h2{font-size:30px;line-height:1.15;color:#fff;margin:10px 0 12px}
.panel p{color:#cdd8e6;font-size:14.5px;margin:0 0 24px}
.panel .go{display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--navy);font-weight:800;padding:12px 18px;border-radius:11px;width:max-content}
.panel .go:hover{background:var(--red);color:#fff}
.pstats{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px}
.pstats span{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:9px;padding:7px 10px;font-size:11.5px;color:#dbe5f2}
.pstats b{color:#fff}
.chooser .foot{text-align:center;color:#9fb0c6;font-size:11.5px;padding:0 24px 26px}

/* RTL adjustments */
html[dir="rtl"] .topnav{margin-inline-start:auto}
html[dir="rtl"] .side-link .num{margin-inline-end:0}
html[dir="rtl"] .article h2{padding-inline-start:12px}
html[dir="rtl"] .pager a.next{text-align:start}
html[dir="rtl"] .pager a.prev{text-align:end}

@media (max-width:1050px){
  .hero h1{font-size:31px}
  .stats{grid-template-columns:repeat(3,1fr)}
  .article{padding:28px 26px}
}
@media (max-width:760px){
  .stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .sidebar{display:none}
  .mobile-menu{display:block}
  .shell{padding-top:14px}
  .hero{padding:28px 22px}
  .hero h1{font-size:27px}
  .article h1{font-size:27px}
  .article h2{font-size:19px}
  .article{padding:22px 18px;border-radius:16px}
  .chooser .panels{flex-direction:column}
  .topnav a:not(.lang):not(.pdf){display:none}
}
@media (max-width:560px){
  .wrap{padding:0 14px}
  .topbar .wrap{height:60px}
  .brand{font-size:17px}
  .stats{grid-template-columns:1fr}
  .hero h1{font-size:23px}
  .article h1{font-size:23px}
  .article table{font-size:12.2px}
  .pager{flex-direction:column}
  .pager a{max-width:100%}
}
@media print{
  .topbar,.sidebar,.mobile-menu,.pager,.footer,.page-toc{display:none!important}
  .shell{display:block;padding:0}
  .article{border:none;box-shadow:none;padding:0}
  .hero{background:#fff;color:#000;box-shadow:none;border:1px solid #ccc}
  .hero h1,.hero p,.stat .n,.stat .l{color:#000}
  .stat{border:1px solid #ccc;background:#fff}
}