:root{
  --navy:#17365D;--blue:#2F5597;--blue2:#4169a1;--ink:#1F2937;--muted:#667085;
  --line:#D7DEE8;--bg:#F7F9FC;--card:#FFFFFF;--soft:#EAF2F8;--good:#EAF7EE;
  --shadow:0 8px 28px rgba(16,24,40,.08)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,"Segoe UI",Arial,sans-serif;line-height:1.58}
a{color:var(--blue)}
header.hero{background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;padding:34px 24px}
.wrap{max-width:1080px;margin:0 auto}
.hero-row{display:flex;align-items:flex-start;justify-content:space-between;gap:26px}
h1{margin:0 0 8px;font-size:2rem;line-height:1.2}.hero p{margin:4px 0;opacity:.94}
.topnav{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.topnav a{color:#fff;text-decoration:none;border:1px solid rgba(255,255,255,.52);padding:8px 12px;border-radius:8px;font-weight:650;font-size:.9rem}
.topnav a:hover,.topnav a:focus{background:rgba(255,255,255,.13);border-color:#fff}
main{max-width:1080px;margin:24px auto;padding:0 18px 52px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;margin:16px 0;box-shadow:0 2px 8px rgba(16,24,40,.05)}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.resource-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--shadow);display:flex;flex-direction:column;min-height:230px}
.resource-card h2,.resource-card h3{color:var(--navy);margin-top:0}.resource-card p{color:#4b5563;flex:1}
.icon{width:44px;height:44px;border-radius:11px;background:var(--soft);display:grid;place-items:center;color:var(--navy);font-weight:800;margin-bottom:14px}
.btn{display:inline-block;text-decoration:none;background:var(--navy);color:#fff!important;padding:11px 16px;border-radius:8px;font-weight:700;border:1px solid var(--navy)}
.btn.secondary{background:#fff;color:var(--navy)!important}.btn:hover,.btn:focus{filter:brightness(.96)}
.note{background:var(--soft);border-left:4px solid var(--blue);padding:13px 15px;border-radius:8px;margin:14px 0}
.langbar{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}.langbar a,.langbar button{background:#fff;color:var(--navy);border:1px solid var(--line);padding:8px 11px;border-radius:8px;text-decoration:none;font-weight:700;cursor:pointer}.langbar a.active,.langbar button.active{background:var(--navy);color:#fff;border-color:var(--navy)}
.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.topic-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;display:flex;flex-direction:column;min-height:180px}.topic-card h3{margin:0 0 8px;color:var(--navy);font-size:1.05rem}.topic-card p{margin:0 0 16px;color:var(--muted);flex:1}
.video-shell{background:#0b1220;border-radius:14px;padding:12px;box-shadow:var(--shadow)}video{display:block;width:100%;max-height:72vh;background:#000;border-radius:9px}
.player-title{margin-bottom:12px}.player-title h2{margin-bottom:4px;color:var(--navy)}
.player-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
footer{max-width:1080px;margin:0 auto;padding:0 18px 34px;color:var(--muted);font-size:.9rem;text-align:center}
.small{color:var(--muted);font-size:.92rem}
body[dir="rtl"]{font-family:"Noto Sans Arabic","Segoe UI",Arial,sans-serif}.rtl{text-align:right;direction:rtl}
@media(max-width:800px){.hero-row{flex-direction:column}.topnav{justify-content:flex-start}.grid,.topic-grid{grid-template-columns:1fr}}