/* ===== ATad Tech — Theme ===== */
:root{
  --bg:#070b16;
  --bg-2:#0a0f1e;
  --surface:#0e1526;
  --surface-2:#121a2e;
  --border:rgba(120,150,220,.14);
  --border-strong:rgba(120,150,220,.28);
  --text:#eaf0ff;
  --muted:#9aa8c7;
  --brand:#1f6bff;
  --brand-2:#0682e3;
  --brand-light:#4d9bff;
  --grad:linear-gradient(120deg,#0682e3,#1f6bff 55%,#4d9bff);
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 20px 60px -25px rgba(0,0,0,.8);
  --maxw:1180px;
  --ff-ar:"Cairo",system-ui,sans-serif;
  --ff-en:"Space Grotesk","Cairo",system-ui,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--ff-ar);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
html[lang="en"] body{font-family:var(--ff-en)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:24px}

/* ===== Background ===== */
.bg-grid{
  position:fixed;inset:0;z-index:-3;
  background-image:
    linear-gradient(rgba(120,150,220,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,150,220,.05) 1px,transparent 1px);
  background-size:60px 60px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 40%,transparent 100%);
}
.bg-glow{position:fixed;z-index:-2;border-radius:50%;filter:blur(120px);opacity:.5;pointer-events:none}
.bg-glow-1{width:600px;height:600px;background:#0f3a8a;top:-200px;inset-inline-start:-150px}
.bg-glow-2{width:500px;height:500px;background:#123a6e;bottom:-150px;inset-inline-end:-120px;opacity:.4}

/* ===== Header ===== */
.header{
  position:sticky;top:0;z-index:100;
  backdrop-filter:blur(14px);
  background:rgba(7,11,22,.55);
  border-bottom:1px solid transparent;
  transition:.35s;
}
.header.scrolled{background:rgba(7,11,22,.9);border-bottom-color:var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px}
.brand-logo{height:42px;width:auto;transition:.3s}
.brand:hover .brand-logo{transform:scale(1.04)}
.nav-links{display:flex;gap:6px;align-items:center}
.nav-links a{
  padding:8px 14px;border-radius:999px;color:var(--muted);
  font-size:.95rem;font-weight:600;transition:.25s;position:relative;
}
.nav-links a:hover{color:var(--text);background:rgba(120,150,220,.08)}
.nav-actions{display:flex;align-items:center;gap:12px}
.lang-toggle{
  background:var(--surface);border:1px solid var(--border);color:var(--text);
  padding:7px 12px;border-radius:999px;cursor:pointer;font-weight:700;
  font-size:.82rem;letter-spacing:.5px;transition:.25s;font-family:var(--ff-en);
}
.lang-toggle:hover{border-color:var(--brand);color:var(--brand-light)}
.lang-toggle .lang-sep{opacity:.4;margin:0 3px}
html[lang="ar"] .lang-ar{color:var(--brand-light)}
html[lang="en"] .lang-en{color:var(--brand-light)}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-weight:700;font-size:.98rem;
  cursor:pointer;border:1px solid transparent;transition:.28s;white-space:nowrap;
}
.btn-sm{padding:9px 18px;font-size:.9rem}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 30px -10px rgba(31,107,255,.7)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 40px -10px rgba(31,107,255,.85)}
.btn-ghost{background:transparent;border-color:var(--border-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand);background:rgba(31,107,255,.08)}
.btn-block{width:100%}

/* ===== Hero ===== */
.hero{position:relative;padding:70px 0 90px}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:center}
.eyebrow{
  display:inline-block;font-size:.85rem;font-weight:700;color:var(--brand-light);
  background:rgba(31,107,255,.1);border:1px solid var(--border-strong);
  padding:6px 16px;border-radius:999px;margin-bottom:22px;
}
.hero-title{font-size:clamp(2.2rem,5vw,3.7rem);line-height:1.2;font-weight:800;letter-spacing:-.01em}
.hero-title span{display:block}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{color:var(--muted);font-size:1.12rem;margin:22px 0 32px;max-width:560px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:36px;margin-top:46px;flex-wrap:wrap}
.stat b{display:block;font-size:2rem;font-weight:800;color:#fff;font-family:var(--ff-en)}
.stat span{color:var(--muted);font-size:.9rem}

/* Hero visual */
.hero-visual{display:flex;justify-content:center;align-items:center}
.orb{position:relative;width:340px;height:340px;display:flex;align-items:center;justify-content:center}
.orb-mark{width:150px;filter:drop-shadow(0 0 30px rgba(31,107,255,.5));animation:float 6s ease-in-out infinite;z-index:2}
.ring{position:absolute;border-radius:50%;border:1px solid var(--border-strong)}
.ring-1{width:210px;height:210px;border-color:rgba(31,107,255,.35);animation:spin 18s linear infinite}
.ring-2{width:290px;height:290px;border-style:dashed;border-color:rgba(120,150,220,.2);animation:spin 26s linear infinite reverse}
.ring-3{width:340px;height:340px;border-color:rgba(31,107,255,.12);
  box-shadow:inset 0 0 60px rgba(31,107,255,.15),0 0 60px rgba(31,107,255,.1)}
@keyframes float{0%,100%{transform:translateY(-10px)}50%{transform:translateY(10px)}}
@keyframes spin{to{transform:rotate(360deg)}}

/* ===== Sections ===== */
.section{padding:90px 0;position:relative}
.section-alt{background:linear-gradient(180deg,transparent,rgba(14,21,38,.6),transparent)}
.section-head{text-align:center;max-width:720px;margin:0 auto 54px}
.tag{
  display:inline-block;font-size:.82rem;font-weight:700;color:var(--brand-light);
  letter-spacing:.06em;text-transform:uppercase;margin-bottom:14px;
}
.section-head h2{font-size:clamp(1.7rem,3.5vw,2.6rem);font-weight:800;line-height:1.3;letter-spacing:-.01em}
.section-sub{color:var(--muted);margin-top:16px;font-size:1.05rem}

/* About */
.about-grid{display:grid;grid-template-columns:1fr;gap:40px}
.about-lead{font-size:1.15rem;color:var(--text);max-width:900px;margin:0 auto;text-align:center;line-height:1.9}
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:10px}
.pillar{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:28px;transition:.3s;position:relative;overflow:hidden;
}
.pillar::before{content:"";position:absolute;inset-inline-start:0;top:0;height:3px;width:0;background:var(--grad);transition:.4s}
.pillar:hover{border-color:var(--border-strong);transform:translateY(-4px)}
.pillar:hover::before{width:100%}
.pillar h3{font-size:1.25rem;margin-bottom:10px;color:var(--brand-light)}
.pillar p{color:var(--muted)}

/* Services */
.track-tabs{margin:14px 0 22px}
.track-title{display:flex;align-items:center;gap:14px;font-size:1.35rem;font-weight:800}
.track-title::before{content:"";width:34px;height:3px;border-radius:2px;background:var(--grad)}
.track-title::after{content:"";flex:1;height:1px;background:var(--border)}
.track-hw span{color:#4d9bff}
.track-sw span{color:#fff}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:34px}
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:28px;transition:.3s;position:relative;
}
.card:hover{border-color:var(--brand);transform:translateY(-6px);box-shadow:var(--shadow)}
.card-icon{
  width:54px;height:54px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-size:1.6rem;background:rgba(31,107,255,.12);border:1px solid var(--border-strong);margin-bottom:18px;
}
.card h4{font-size:1.18rem;margin-bottom:10px}
.card p{color:var(--muted);font-size:.98rem}

/* Why */
.why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.why-item{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:30px;transition:.3s;
}
.why-item:hover{border-color:var(--border-strong);background:var(--surface-2)}
.why-num{font-family:var(--ff-en);font-size:2.4rem;font-weight:700;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1;margin-bottom:14px}
.why-item h4{font-size:1.25rem;margin-bottom:10px}
.why-item p{color:var(--muted)}

/* Contact */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:34px;align-items:start}
.contact-info{display:flex;flex-direction:column;gap:16px}
.contact-line{
  display:flex;align-items:center;gap:16px;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--radius-sm);padding:18px 20px;transition:.3s;
}
a.contact-line:hover{border-color:var(--brand);transform:translateX(4px)}
html[dir="ltr"] a.contact-line:hover{transform:translateX(-4px)}
.ci-icon{font-size:1.4rem;flex-shrink:0}
.contact-line b{display:block;font-size:.82rem;color:var(--muted);font-weight:600;margin-bottom:2px}
.contact-line span span,.contact-line>span{font-weight:600}
.socials{display:flex;gap:10px;margin-top:6px;flex-wrap:wrap}
.social{
  font-size:.85rem;font-weight:600;color:var(--muted);padding:9px 16px;
  border:1px solid var(--border);border-radius:999px;transition:.25s;
}
.social:hover{color:#fff;border-color:var(--brand);background:rgba(31,107,255,.1)}

.contact-form{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:30px;display:flex;flex-direction:column;gap:16px;
}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:.9rem;font-weight:600;color:var(--muted)}
.field input,.field select,.field textarea{
  background:var(--bg-2);border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:13px 15px;color:var(--text);font-family:inherit;font-size:.98rem;transition:.25s;resize:vertical;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,107,255,.15)
}
.field select{cursor:pointer}
.field select option{background:var(--surface)}
.form-note{color:#4ade80;font-weight:600;text-align:center;font-size:.95rem}
.form-error{color:#f87171;font-weight:600;text-align:center;font-size:.95rem}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0;pointer-events:none}

/* ===== Footer ===== */
.footer{border-top:1px solid var(--border);padding:50px 0 34px;background:var(--bg-2)}
.footer-inner{display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center}
.footer-logo{height:44px}
.footer-tag{color:var(--muted);max-width:520px}
.footer-links{display:flex;gap:22px;flex-wrap:wrap;justify-content:center}
.footer-links a{color:var(--muted);font-weight:600;transition:.2s}
.footer-links a:hover{color:var(--brand-light)}
.copy{color:var(--muted);font-size:.88rem;margin-top:6px}

/* ===== Mobile menu ===== */
.menu-btn{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.menu-btn span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:.3s}
.menu-btn.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn.open span:nth-child(2){opacity:0}
.menu-btn.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== Reveal animation ===== */
.reveal{opacity:0;transform:translateY(30px);transition:.7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ===== Responsive ===== */
@media (max-width:960px){
  .hero-inner{grid-template-columns:1fr;text-align:center}
  .hero-sub{margin-inline:auto}
  .hero-cta,.hero-stats{justify-content:center}
  .hero-visual{order:-1;margin-bottom:20px}
  .orb{width:260px;height:260px}
  .ring-1{width:170px;height:170px}.ring-2{width:220px;height:220px}.ring-3{width:260px;height:260px}
  .orb-mark{width:120px}
  .pillars,.cards{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
}
@media (max-width:720px){
  .nav-cta{display:none}
  .nav-links{
    position:fixed;inset-inline:0;top:76px;flex-direction:column;align-items:stretch;
    background:rgba(10,15,30,.98);backdrop-filter:blur(14px);padding:16px 24px 26px;gap:4px;
    border-bottom:1px solid var(--border);transform:translateY(-120%);transition:.35s;
    max-height:calc(100vh - 76px);overflow:auto;
  }
  .nav-links.open{transform:none}
  .nav-links a{padding:14px 12px;font-size:1.05rem}
  .menu-btn{display:flex}
  .pillars,.cards,.why-grid{grid-template-columns:1fr}
  .hero-stats{gap:24px}
  .section{padding:66px 0}
}