/* iSystems — isystems-eg.com
   Palette: navy #071426 / deep #0B2240 / brand blue #1565C0 / sky #4FC3F7 / light #F3F7FB
   Type: Cairo (Arabic + Latin). Layout uses logical properties so RTL and LTR share one file. */
:root{
  --navy:#071426;--deep:#0B2240;--panel:#10294A;--blue:#1565C0;--sky:#4FC3F7;--sky-2:#81D4FA;
  --light:#F3F7FB;--ink:#0D1B2A;--muted:#5B6B7F;--line:#DCE5EF;--white:#fff;--wa:#25D366;
  --r:14px;--max:1180px;
  --font:"Cairo",system-ui,-apple-system,"Segoe UI",Tahoma,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--white);line-height:1.7;font-size:16px}
img{max-width:100%;display:block;height:auto}
a{color:inherit}
.wrap{width:min(100% - 32px,var(--max));margin-inline:auto}
.skip{position:absolute;inset-inline-start:-999px;top:8px;background:var(--sky);color:var(--navy);padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{inset-inline-start:8px}
:focus-visible{outline:3px solid var(--sky);outline-offset:2px}

/* Header */
.hdr{position:sticky;top:0;z-index:50;background:rgba(7,20,38,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid rgba(79,195,247,.12);color:var(--white)}
.hdr .wrap{display:flex;align-items:center;gap:20px;min-height:68px}
.brand{display:flex;align-items:center;color:var(--white);text-decoration:none;flex:none}
.brand svg{width:170px;height:42px;direction:ltr}
.nav{display:flex;gap:4px;margin-inline-start:auto;align-items:center}
.nav a{text-decoration:none;font-weight:600;font-size:15px;padding:8px 12px;border-radius:8px;color:#C9D6E6}
.nav a:hover{color:var(--white);background:rgba(255,255,255,.06)}
.lang{font-size:14px;color:#C9D6E6;white-space:nowrap}
.lang a{text-decoration:none;padding:4px 6px;border-radius:6px}
.lang a[aria-current]{color:var(--white);font-weight:700}
.lang a:not([aria-current]):hover{color:var(--sky)}
.lang span{opacity:.4}
.menu-btn{display:none;margin-inline-start:auto;background:none;border:1px solid rgba(255,255,255,.2);color:var(--white);border-radius:10px;width:44px;height:44px;cursor:pointer}
.menu-btn svg{width:22px;height:22px;margin:auto}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font:inherit;font-weight:700;font-size:16px;text-decoration:none;padding:12px 22px;border-radius:12px;border:2px solid transparent;cursor:pointer;transition:transform .15s,background .15s}
.btn:hover{transform:translateY(-1px)}
.btn svg{width:20px;height:20px;flex:none}
.btn-wa{background:var(--wa);color:#05290f}
.btn-sky{background:var(--sky);color:var(--navy)}
.btn-ghost{border-color:rgba(255,255,255,.35);color:var(--white)}
.btn-ghost:hover{border-color:var(--sky)}
.btn-sm{padding:8px 14px;font-size:14px;border-radius:10px}

/* Hero */
.hero{position:relative;color:var(--white);background:var(--navy);overflow:hidden}
.hero picture,.hero .bg{position:absolute;inset:0}
.hero .bg img{width:100%;height:100%;object-fit:cover;opacity:.55}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(to left,rgba(7,20,38,.97) 0%,rgba(7,20,38,.85) 45%,rgba(7,20,38,.35) 100%)}
[dir=ltr] .hero::after{background:linear-gradient(to right,rgba(7,20,38,.97) 0%,rgba(7,20,38,.85) 45%,rgba(7,20,38,.35) 100%)}
.hero .wrap{position:relative;z-index:1;padding-block:96px 104px}
.hero-txt{max-width:700px}
.eyebrow{display:inline-block;font-size:14px;font-weight:700;color:var(--sky);letter-spacing:.02em;margin:0 0 14px;padding:4px 12px;border:1px solid rgba(79,195,247,.35);border-radius:999px}
[dir=ltr] .eyebrow{letter-spacing:.06em;text-transform:uppercase;font-size:12.5px}
.hero h1{font-size:clamp(30px,4.6vw,52px);line-height:1.3;margin:0 0 18px;font-weight:800}
.hero h1 em{font-style:normal;color:var(--sky)}
.hero p.lead{font-size:clamp(16px,1.6vw,19px);color:#C9D6E6;margin:0 0 30px;max-width:560px}
.cta{display:flex;flex-wrap:wrap;gap:12px}
.facts{display:flex;flex-wrap:wrap;gap:10px 28px;margin:40px 0 0;padding:0;list-style:none;color:#C9D6E6;font-size:15px}
.facts li{display:flex;align-items:center;gap:8px}
.facts svg{width:18px;height:18px;color:var(--sky);flex:none}

/* Sections */
.sec{padding-block:84px}
.sec-light{background:var(--light)}
.sec-dark{background:var(--navy);color:var(--white)}
.sec-head{max-width:720px;margin:0 0 40px}
.sec-head .kicker{color:var(--blue);font-weight:700;font-size:14px;margin:0 0 6px}
.sec-dark .sec-head .kicker{color:var(--sky)}
.sec h2{font-size:clamp(26px,3.2vw,36px);line-height:1.35;margin:0 0 12px;font-weight:800}
.sec-head p{margin:0;color:var(--muted);font-size:17px}
.sec-dark .sec-head p{color:#AFC0D4}

/* Main services */
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pillar{background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:28px 24px;transition:border-color .2s,box-shadow .2s}
.pillar:hover{border-color:var(--sky);box-shadow:0 10px 30px rgba(21,101,192,.10)}
.pillar .ic{width:52px;height:52px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(160deg,#E3F4FD,#D2E6FA);color:var(--blue);margin-bottom:16px}
.pillar .ic svg{width:28px;height:28px}
.pillar h3{font-size:20px;margin:0 0 8px;line-height:1.4}
.pillar p{margin:0 0 12px;color:var(--muted);font-size:15.5px}
.pillar ul{margin:0;padding:0;list-style:none;font-size:14.5px;color:var(--ink)}
.pillar li{padding-inline-start:18px;position:relative;margin-bottom:4px}
.pillar li::before{content:"";position:absolute;inset-inline-start:0;top:.75em;width:7px;height:7px;border-radius:50%;background:var(--sky)}

/* IT support grid */
.support{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{background:var(--panel);border:1px solid rgba(79,195,247,.12);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column}
.card img{aspect-ratio:16/10;object-fit:cover;width:100%;background:#0B2240}
.card div{padding:14px 16px 16px}
.card h3{font-size:16.5px;line-height:1.45;margin:0 0 4px;display:flex;gap:10px;align-items:baseline}
.card h3 span{color:var(--sky);font-size:13px;font-weight:700;flex:none}
.card p{margin:0;color:#AFC0D4;font-size:14.5px;line-height:1.6}

/* Security / promise */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:start}
.places{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:0;padding:0;list-style:none}
.places li{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:16px;display:flex;gap:12px;align-items:center;font-weight:700}
.places svg{width:26px;height:26px;color:var(--blue);flex:none}
.promise{background:var(--navy);color:var(--white);border-radius:18px;padding:30px 28px}
.promise h3{margin:0 0 16px;font-size:21px}
.promise ul{margin:0;padding:0;list-style:none}
.promise li{display:flex;gap:12px;padding:11px 0;border-bottom:1px solid rgba(255,255,255,.08);color:#D6E2EF}
.promise li:last-child{border-bottom:0}
.promise li svg{width:20px;height:20px;color:var(--sky);flex:none;margin-top:4px}
.promise b{color:var(--white)}
.promise small{display:block;color:#8FA3BA;font-size:13.5px;margin-top:14px}

/* References */
.refs{display:flex;flex-wrap:wrap;gap:12px;margin:0;padding:0;list-style:none}
.refs li{border:1px solid var(--line);background:var(--white);border-radius:999px;padding:10px 20px;font-weight:700;font-size:15.5px;color:var(--deep)}
.refs li small{font-weight:600;color:var(--muted);font-size:13px;margin-inline-start:6px}

/* FAQ */
.faq{max-width:820px}
.faq details{border-bottom:1px solid var(--line);padding:16px 0}
.faq summary{cursor:pointer;font-weight:700;font-size:17px;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--blue);font-size:22px;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq p{margin:10px 0 0;color:var(--muted)}

/* Contact */
.contact{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:start}
.cbox{background:var(--panel);border:1px solid rgba(79,195,247,.14);border-radius:18px;padding:28px}
.cbox h3{margin:0 0 6px;font-size:21px}
.cbox > p{color:#AFC0D4;margin:0 0 20px}
.clist{margin:0;padding:0;list-style:none}
.clist li{display:flex;gap:14px;align-items:flex-start;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.07)}
.clist li:last-child{border-bottom:0}
.clist svg{width:22px;height:22px;color:var(--sky);flex:none;margin-top:3px}
.clist b{display:block;font-size:13px;color:#8FA3BA;font-weight:600}
.clist a{text-decoration:none;font-weight:700;color:var(--white)}
.clist a:hover{color:var(--sky)}
.clist bdi,.ltr{direction:ltr;unicode-bidi:isolate}
.cbtns{display:flex;flex-direction:column;gap:12px;margin-top:8px}
.cbtns .btn{justify-content:flex-start}

/* Footer */
.ftr{background:#050E1B;color:#8FA3BA;font-size:14.5px;padding-block:40px 28px}
.ftr .top{display:flex;flex-wrap:wrap;justify-content:space-between;gap:20px;align-items:center;padding-bottom:22px;border-bottom:1px solid rgba(255,255,255,.07)}
.ftr .brand svg{width:140px;height:35px}
.ftr .top p{margin:0;max-width:520px}
.ftr .bot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding-top:18px;font-size:13px}
.ftr a{color:#B7C6D8;text-decoration:none}
.ftr a:hover{color:var(--sky)}
.credit{opacity:.8}

/* Floating WhatsApp (phone) */
.wa-float{position:fixed;inset-inline-end:16px;bottom:16px;z-index:60;width:56px;height:56px;border-radius:50%;background:var(--wa);display:none;place-items:center;box-shadow:0 8px 24px rgba(0,0,0,.25)}
.wa-float svg{width:30px;height:30px;color:#fff}

/* 404 */
.nf{min-height:70vh;display:grid;place-items:center;text-align:center;background:var(--navy);color:var(--white);padding:60px 16px}
.nf h1{font-size:40px;margin:0 0 10px}
.nf p{color:#AFC0D4;margin:0 0 24px}

/* Responsive */
@media (max-width:1060px){
  .pillars,.support{grid-template-columns:repeat(2,1fr)}
  .split,.contact{grid-template-columns:1fr}
}
@media (max-width:860px){
  .menu-btn{display:grid}
  .nav{position:absolute;inset-inline:0;top:100%;flex-direction:column;align-items:stretch;background:var(--navy);padding:10px 16px 18px;border-bottom:1px solid rgba(79,195,247,.15);display:none}
  .nav.open{display:flex}
  .nav a{padding:12px}
  .hdr .lang{margin-inline-start:0}
  .hdr .btn-wa{display:none}
  .wa-float{display:grid}
}
@media (max-width:560px){
  .sec{padding-block:60px}
  .hero .wrap{padding-block:64px 72px}
  .hero::after{background:linear-gradient(to bottom,rgba(7,20,38,.80),rgba(7,20,38,.95))!important}
  .support{grid-template-columns:1fr 1fr;gap:10px}
  .card div{padding:10px 12px 12px}
  .card h3{font-size:14.5px}
  .card p{display:none}
  .pillars{grid-template-columns:1fr}
  .places{grid-template-columns:1fr 1fr}
  .cta .btn{flex:1 1 100%}
  .hdr .brand svg{width:136px;height:34px}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}