:root{
  --navy:#18365f;--navy2:#102645;--navy3:#0b1b33;--gold:#c9a84c;--blue:#2563eb;--cyan:#0891b2;--green:#059669;--orange:#f59e0b;--red:#dc2626;--purple:#7c3aed;
  --bg:#eef4fa;--card:#fff;--ink:#14223a;--muted:#66758c;--line:#dbe5f0;--soft:#f7fafc;--shadow:0 18px 48px rgba(16,38,69,.12);--radius:24px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:"Cairo","Segoe UI",Tahoma,Arial,sans-serif;line-height:1.75;overflow-x:hidden}a{text-decoration:none;color:inherit}img{max-width:100%}.wrap{max-width:1200px;margin:auto;padding:0 22px}.topbar{background:linear-gradient(135deg,var(--navy2),var(--navy));color:#dce8f7;border-bottom:1px solid rgba(255,255,255,.12)}.topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-top:9px;padding-bottom:9px;font-size:13px}.domain{color:#f0d778}.nav-shell{position:sticky;top:0;z-index:20;background:rgba(238,244,250,.9);backdrop-filter:blur(16px);border-bottom:1px solid rgba(219,229,240,.78)}.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:13px 0}.brand{display:flex;align-items:center;gap:12px;font-weight:900}.brand-mark{width:44px;height:44px;border-radius:15px;display:grid;place-items:center;background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;box-shadow:0 12px 28px rgba(37,99,235,.25)}.brand-title{line-height:1.2}.brand-title strong{display:block;font-size:18px}.brand-title span{display:block;color:var(--muted);font-size:12px;font-weight:800}.links,.langs,.actions{display:flex;gap:9px;align-items:center;flex-wrap:wrap}.links a{font-size:14px;color:#31445f;padding:9px 10px;border-radius:999px;font-weight:800}.links a:hover,.links a.active{background:#fff;color:var(--navy);box-shadow:var(--shadow)}.langs a{border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 10px;color:var(--navy);font-size:12px;font-weight:900}.hero{padding:58px 0 36px}.hero-grid{display:grid;grid-template-columns:1fr .9fr;gap:34px;align-items:center}.badge{display:inline-flex;align-items:center;gap:8px;background:#e8f1fb;border:1px solid #cfe0f2;color:var(--navy);border-radius:999px;padding:8px 14px;font-weight:900;font-size:13px}.badge:before{content:"";width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 0 6px rgba(5,150,105,.12)}h1{font-size:clamp(31px,4vw,52px);line-height:1.16;margin:18px 0 16px;letter-spacing:-.018em}html[dir="rtl"] h1{letter-spacing:-.01em}.lead{font-size:clamp(16px,1.7vw,20px);color:#40536c;max-width:780px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:16px;padding:12px 17px;font-weight:900;border:1px solid var(--line);transition:.2s;box-shadow:0 10px 25px rgba(16,38,69,.08)}.btn:hover{transform:translateY(-2px)}.primary{background:var(--navy);color:#fff;border-color:var(--navy)}.ghost{background:#fff;color:var(--navy)}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:26px}.metric{background:#fff;border:1px solid var(--line);border-radius:20px;padding:15px;box-shadow:var(--shadow)}.metric strong{display:block;font-size:20px;color:var(--navy)}.metric span{display:block;color:var(--muted);font-size:12.5px}.showcase{position:relative;border-radius:34px;background:linear-gradient(135deg,#fff,#e9f2fb);border:1px solid var(--line);box-shadow:var(--shadow);padding:18px;overflow:hidden}.showcase:before{content:"";position:absolute;inset:auto -80px -100px auto;width:290px;height:290px;background:radial-gradient(circle,rgba(201,168,76,.25),transparent 70%)}.screen-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:24px;padding:12px;box-shadow:0 18px 50px rgba(16,38,69,.14)}.screen-card img{display:block;width:100%;border-radius:18px;border:1px solid #e5edf5}.floating{position:absolute;background:var(--navy);color:#fff;border-radius:18px;padding:13px 15px;font-weight:900;box-shadow:0 18px 35px rgba(16,38,69,.24);font-size:13px}.f1{top:25px;inset-inline-start:28px}.f2{bottom:36px;inset-inline-end:34px;background:var(--gold);color:#17223a}.section{padding:58px 0}.section-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:24px}.section-head p{max-width:620px}.eyebrow{color:var(--gold);font-size:12px;font-weight:1000;text-transform:uppercase;letter-spacing:.12em}.section h2{font-size:clamp(25px,2.8vw,38px);line-height:1.2;margin:6px 0;color:var(--navy)}.muted{color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.card,.step,.download,.faq-item,.panel,.feature-card,.shot,.detail-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.icon{width:46px;height:46px;border-radius:15px;display:grid;place-items:center;background:#eaf2ff;color:var(--navy);font-weight:1000;font-size:20px;flex:0 0 auto}.icon.green{background:#ecfdf5;color:var(--green)}.icon.red{background:#fef2f2;color:var(--red)}.icon.gold{background:#fffbeb;color:#b78918}.icon.purple{background:#f5f3ff;color:var(--purple)}.icon.cyan{background:#ecfeff;color:var(--cyan)}.card h3,.step h3,.download h3,.feature-card h3,.detail-card h3{margin:10px 0 8px;color:var(--navy);font-size:19px}.band{background:linear-gradient(135deg,var(--navy3),var(--navy));color:#fff}.band h2,.band .card h3,.band .feature-card h3,.band .step h3{color:#fff}.band .muted{color:#c9d7ea}.band .card,.band .step,.band .feature-card{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.14);box-shadow:none}.subjects{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:18px}.pill{background:#fff;border:1px solid var(--line);border-radius:999px;padding:9px 15px;font-weight:900;color:var(--navy)}.feature-group{margin:22px 0 36px}.feature-group-title{display:flex;align-items:center;gap:12px;margin-bottom:14px}.feature-group-title h2{font-size:26px;margin:0}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.feature-card{display:flex;gap:14px;align-items:flex-start;padding:18px}.feature-card h3{font-size:17px;margin:0 0 5px}.feature-card p{font-size:13.5px;margin:0;color:var(--muted)}.workflow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.num{width:42px;height:42px;border-radius:14px;background:rgba(201,168,76,.16);color:#f7d36b;display:grid;place-items:center;font-weight:1000}.screens-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.shot{overflow:hidden;padding:0}.shot img{display:block;width:100%;height:220px;object-fit:cover;object-position:top;background:#fff}.shot.large img{height:310px;object-fit:contain;padding:10px}.shot span{display:block;padding:12px 14px;font-weight:900;color:var(--navy);font-size:13px;background:#fff}.privacy-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.privacy-list div{background:#fff;border:1px solid var(--line);border-radius:18px;padding:13px;font-weight:900}.downloads-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.status{display:inline-flex;background:#fff7ed;color:#9a3412;border:1px solid #fed7aa;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:900}.faq-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.admin-link{background:var(--navy);color:#fff;border-radius:20px;padding:20px;display:flex;justify-content:space-between;gap:20px;align-items:center;margin-top:18px}.path{display:flex;gap:8px;flex-wrap:wrap;align-items:center;color:var(--muted);font-size:13px;margin-top:16px}.path a{color:var(--navy);font-weight:900}.toc{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}.toc a{background:#fff;border:1px solid var(--line);border-radius:999px;padding:9px 14px;font-weight:900;color:var(--navy);font-size:13px}.detail-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.detail-card{padding:18px}.detail-card ul{margin:8px 0 0;padding-inline-start:20px;color:var(--muted)}.memo-highlight{background:linear-gradient(135deg,#fff,#eef6ff);border:1px solid var(--line);border-radius:30px;padding:26px;box-shadow:var(--shadow)}.footer{background:var(--navy3);color:#c9d7ea;padding:28px 0}.footer strong{color:#fff}@media(max-width:980px){.hero-grid,.grid-2{grid-template-columns:1fr}.grid,.workflow,.downloads-grid,.privacy-list,.faq-list,.feature-grid,.screens-grid{grid-template-columns:1fr 1fr}.grid-4{grid-template-columns:repeat(2,1fr)}.links{display:none}.section-head{display:block}}@media(max-width:640px){.grid,.workflow,.downloads-grid,.privacy-list,.faq-list,.metrics,.screens-grid,.feature-grid,.grid-4,.detail-list{grid-template-columns:1fr}.topbar .wrap,.nav{align-items:flex-start}.nav{flex-direction:column}.hero{padding-top:34px}.floating{display:none}.shot img,.shot.large img{height:auto;object-fit:contain}.feature-card{display:block}.feature-card .icon{margin-bottom:10px}}

/* ── Rasd Education UI improvements ── */
.shot{border-radius:var(--radius);overflow:hidden;}
.shot img{display:block;width:100%;height:220px;object-fit:cover;object-position:top center;background:#f5f9ff;}
.shot.large img{height:300px;object-fit:contain;object-position:center;padding:8px;background:#f9fbff;}
.shot span{display:block;padding:10px 14px;font-size:13px;font-weight:900;color:var(--navy);background:#fff;border-top:1px solid var(--line);}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px;}
.detail-card li{margin:5px 0;line-height:1.6;}
html[dir="rtl"] .detail-card ul{padding-inline-start:0;padding-inline-end:20px;}
.api-card{direction:ltr;text-align:left;}
html[dir="rtl"] .api-card{text-align:left;}
.hub-arms span{text-align:center;}
.toc{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0 4px;}
.toc a{font-size:13px;padding:8px 13px;}
.footer{border-top:1px solid rgba(255,255,255,.08);}
@media(max-width:640px){
  .actions{gap:10px;}
  .btn{font-size:14px;padding:11px 15px;}
  .shot.large img{height:auto;max-height:240px;}
  .api-grid{grid-template-columns:1fr;}
  .toc{gap:6px;}
}


/* Rasd ecosystem navigation upgrade */
.nav-shell{z-index:60}.nav{gap:16px}.brand{min-width:max-content}.nav-menu{display:flex;align-items:center;justify-content:center;gap:7px;flex:1;min-width:0}.nav-direct,.nav-trigger{font-family:inherit;font-size:14px;color:#31445f;padding:10px 12px;border-radius:999px;font-weight:900;border:0;background:transparent;cursor:pointer;line-height:1.2}.nav-direct:hover,.nav-direct.active,.nav-dropdown.active>.nav-trigger,.nav-dropdown:hover>.nav-trigger,.nav-dropdown:focus-within>.nav-trigger{background:#fff;color:var(--navy);box-shadow:var(--shadow)}.nav-dropdown{position:relative;display:inline-flex}.nav-trigger{display:inline-flex;align-items:center;gap:6px}.chev{font-size:14px;opacity:.7}.nav-dropdown-panel{position:absolute;top:calc(100% + 12px);inset-inline-start:0;min-width:245px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:10px;box-shadow:0 24px 55px rgba(16,38,69,.18);opacity:0;visibility:hidden;transform:translateY(8px);transition:.18s;display:grid;gap:5px}.nav-dropdown:hover .nav-dropdown-panel,.nav-dropdown:focus-within .nav-dropdown-panel{opacity:1;visibility:visible;transform:translateY(0)}.nav-dropdown-panel:before{content:"";position:absolute;top:-12px;inset-inline-start:24px;border-inline-start:10px solid transparent;border-inline-end:10px solid transparent;border-bottom:12px solid #fff}.nav-dropdown-panel a{display:block;border-radius:14px;padding:10px 12px;color:#31445f;font-weight:900;font-size:13px;white-space:nowrap}.nav-dropdown-panel a:hover,.nav-dropdown-panel a.active{background:#eef4fa;color:var(--navy);box-shadow:none}.ecosystem-panel,.hub-diagram,.api-panel{min-height:300px;display:grid;place-items:center}.flow-line{display:grid;gap:10px;text-align:center;width:100%;max-width:360px}.flow-line span,.hub-node,.hub-arms span{background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px 16px;font-weight:1000;color:var(--navy);box-shadow:0 12px 28px rgba(16,38,69,.08)}.flow-line b{color:var(--gold);font-size:22px}.hub-diagram{gap:18px}.hub-node{background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;border:0;min-width:210px;text-align:center}.hub-arms{display:grid;grid-template-columns:1fr 1fr;gap:10px;width:100%}.api-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.api-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);direction:ltr;text-align:left}.api-card span{display:inline-flex;background:#ecfdf5;color:var(--green);border:1px solid #bbf7d0;border-radius:999px;padding:5px 10px;font-weight:1000;font-size:12px}.api-card h3{font-size:15px;color:var(--navy);margin:12px 0 8px;word-break:break-word}.api-card p{color:var(--muted);margin:0}.detail-card li{margin:4px 0}@media(max-width:1120px){.nav{align-items:flex-start}.nav-menu{order:3;flex-basis:100%;justify-content:flex-start;overflow-x:auto;padding-bottom:3px}.langs{margin-inline-start:auto}.nav-dropdown-panel{position:absolute}}@media(max-width:980px){.links.nav-menu{display:flex}.nav-menu{flex-wrap:wrap;overflow:visible}.nav-dropdown-panel{position:static;min-width:100%;box-shadow:none;border-radius:18px;margin-top:6px;display:none;opacity:1;visibility:visible;transform:none}.nav-dropdown:hover .nav-dropdown-panel,.nav-dropdown:focus-within .nav-dropdown-panel{display:grid}.nav-dropdown{display:block}.nav-dropdown-panel:before{display:none}.nav-direct,.nav-trigger{background:#fff;border:1px solid var(--line)}}@media(max-width:640px){.nav-menu{width:100%;display:grid;grid-template-columns:1fr;gap:8px}.nav-direct,.nav-trigger{width:100%;justify-content:space-between}.nav-dropdown-panel a{white-space:normal}.hub-arms,.api-grid{grid-template-columns:1fr}.ecosystem-panel,.hub-diagram,.api-panel{min-height:auto}}

/* ── Sync flow diagram (rasd-student page) ── */
.hero-img-panel{display:flex;align-items:center;justify-content:center;padding:12px;background:transparent;border:0;box-shadow:none}
.hero-ecosystem-img{max-width:280px;max-height:280px;width:100%;object-fit:contain;border-radius:24px;display:block}
.sync-flow{display:flex;flex-direction:column;align-items:center;gap:2px;padding:32px 0}
.sync-node{display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center;width:190px}
.sync-img{width:130px;height:130px;border-radius:22px;overflow:hidden;background:#fff;border:1px solid var(--line);box-shadow:0 6px 20px rgba(16,38,69,.09);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.sync-img img{width:100%;height:100%;object-fit:contain;object-position:center}
.sync-img-dark{background:#111}
.sync-node strong{font-size:14px;color:var(--navy);font-weight:900;line-height:1.3}
.sync-node span{font-size:12px;color:var(--muted);line-height:1.4;max-width:170px}
.band .sync-node strong{color:#fff}
.band .sync-node span{color:#c9d7ea}
.band .sync-img{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.18)}
.sync-arrow{font-size:24px;color:var(--gold);font-weight:900;line-height:1;padding:6px 0}
.sync-pair{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:center}
.sync-or{font-size:12px;font-weight:900;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:999px;width:34px;height:34px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.band .sync-or{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.2);color:#c9d7ea}
@media(max-width:640px){.sync-pair{flex-direction:column;gap:6px}.sync-node{width:160px}.sync-img{width:110px;height:110px}.hero-ecosystem-img{max-width:200px}}

/* ── Workflow diagram (rasd-student) ── */
.wflow-outer{position:relative;width:100%;max-width:640px;margin:32px auto 0;aspect-ratio:8/7;}
.wf-svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:visible;}
.wf-node{position:absolute;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center;width:130px;}
.wf-img{width:72px;height:72px;display:flex;align-items:center;justify-content:center;}
.wf-img img{width:100%;height:100%;object-fit:contain;object-position:center;}
.wf-node strong{font-size:12.5px;color:var(--navy);font-weight:900;line-height:1.3;display:block;}
.wf-node span{font-size:10.5px;color:var(--muted);line-height:1.4;max-width:120px;display:block;}
.wf-prof{left:50%;top:12.5%;}
.wf-hub{left:17.2%;top:42.9%;}
.wf-cloud{left:82.8%;top:42.9%;}
.wf-student{left:50%;top:69.6%;}
.wf-results{left:17.2%;top:87.5%;}
.wf-or{position:absolute;left:50%;top:42.9%;transform:translate(-50%,-50%);font-size:11px;font-weight:900;color:var(--muted);background:#f5f8fb;border:1px solid var(--line);border-radius:999px;width:32px;height:32px;display:flex;align-items:center;justify-content:center;z-index:2;}
@media(max-width:580px){.wflow-outer{max-width:360px;}.wf-node{width:88px;}.wf-img{width:52px;height:52px;}.wf-node strong{font-size:10px;}.wf-node span{font-size:9px;max-width:80px;}.wf-or{width:26px;height:26px;font-size:9px;}}
@media(max-width:440px){.wflow-outer{aspect-ratio:auto;height:auto;max-width:100%;padding:20px 8px 12px;background:#fff;border:1.5px solid var(--line);border-radius:24px;display:flex;flex-direction:column;align-items:center;gap:4px;}.wf-svg{display:none;}.wf-node{position:static!important;transform:none!important;left:auto!important;top:auto!important;width:100%;max-width:300px;flex-direction:row;text-align:start;gap:12px;padding:8px 12px;background:#f8fafc;border:1px solid var(--line);border-radius:14px;}.wf-img{flex-shrink:0;width:46px;height:46px;}.wf-node span{max-width:none;display:block;}.wf-or{position:static;transform:none;margin:2px auto;width:28px;height:28px;font-size:9px;}}