/* TOTAL MEP — Design & Consulting Engineers */
:root{
  --navy:#0B1F33; --navy-2:#12304D; --ink:#0F172A; --muted:#5B6B7C;
  --line:#E3E8EE; --bg:#F6F8FA; --white:#fff;
  --accent:#F28C28; --accent-d:#D9731A; --cyan:#1FA2C8;
  --radius:14px; --shadow:0 10px 30px rgba(11,31,51,.08);
  --font:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
html[lang="ar"]{ --font:"Cairo","Segoe UI",Tahoma,sans-serif; }
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--white);line-height:1.65;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:min(1180px,100% - 32px);margin-inline:auto}
section{padding:96px 0}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:.8rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
html[lang="ar"] .eyebrow{letter-spacing:0;font-size:.95rem}
.eyebrow::before{content:"";width:28px;height:2px;background:var(--accent)}
h1,h2,h3{line-height:1.2;font-weight:800;color:var(--navy)}
h2{font-size:clamp(1.8rem,3.4vw,2.6rem);margin:12px 0 16px}
.lead{color:var(--muted);font-size:1.08rem;max-width:640px}
.section-head{margin-bottom:48px}
.section-head.center{text-align:center}
.section-head.center .lead{margin-inline:auto}
.section-head.center .eyebrow::before{display:none}

/* Buttons */
.btn{white-space:nowrap;display:inline-flex;align-items:center;gap:10px;padding:14px 26px;border-radius:999px;font-weight:700;font-size:.98rem;transition:.2s;border:2px solid transparent;cursor:pointer}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-d);transform:translateY(-2px)}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1)}
.btn svg{width:18px;height:18px}
html[dir="rtl"] .btn .arrow{transform:scaleX(-1)}

/* Header */
.header{position:fixed;inset-inline:0;top:0;z-index:50;transition:.25s;padding:18px 0}
.header.scrolled{background:rgba(11,31,51,.96);backdrop-filter:blur(8px);padding:10px 0;box-shadow:0 4px 20px rgba(0,0,0,.15)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;color:#fff}
.brand-mark{width:46px;height:46px;flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text b{font-size:1.25rem;letter-spacing:.04em;font-weight:900}
.brand-text b span{color:var(--accent)}
.brand-text small{font-size:.68rem;opacity:.75;letter-spacing:.08em;text-transform:uppercase}
html[lang="ar"] .brand-text small{letter-spacing:0;font-size:.75rem}
.menu{display:flex;align-items:center;gap:30px;list-style:none}
.menu a{color:rgba(255,255,255,.85);font-weight:600;font-size:.95rem;transition:.2s}
.menu a:hover{color:var(--accent)}
.nav-actions{display:flex;align-items:center;gap:14px}
.lang{color:#fff;font-weight:700;border:1px solid rgba(255,255,255,.3);padding:7px 14px;border-radius:999px;font-size:.88rem}
.lang:hover{border-color:var(--accent);color:var(--accent)}
.nav .btn{padding:10px 20px;font-size:.9rem}
.burger{display:none;background:none;border:0;color:#fff;cursor:pointer;width:42px;height:42px}
.burger svg{width:28px;height:28px}

/* Hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;background:var(--navy);color:#fff;overflow:hidden;padding:140px 0 90px}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(31,162,200,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(31,162,200,.08) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(ellipse at 70% 40%,#000 20%,transparent 75%)}
.hero::after{content:"";position:absolute;width:620px;height:620px;border-radius:50%;background:radial-gradient(circle,rgba(242,140,40,.22),transparent 65%);inset-inline-end:-160px;top:-120px}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero h1{color:#fff;font-size:clamp(2.3rem,5.2vw,4rem);margin:18px 0 22px}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero p{color:rgba(255,255,255,.78);font-size:1.12rem;max-width:580px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:56px;max-width:560px}
.hero-stats div{border-inline-start:2px solid var(--accent);padding-inline-start:14px}
.hero-stats b{display:block;font-size:2rem;font-weight:900;color:#fff}
.hero-stats span{font-size:.85rem;color:rgba(255,255,255,.65)}
.hero-visual{position:relative}
.blueprint{direction:ltr;background:linear-gradient(160deg,var(--navy-2),#0A1A2B);border:1px solid rgba(31,162,200,.25);border-radius:22px;padding:26px;box-shadow:0 30px 60px rgba(0,0,0,.35)}
.blueprint svg{width:100%;height:auto}
.disc-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.disc-chips span{font-size:.78rem;font-weight:700;padding:6px 12px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.85)}

/* About */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.about-card{background:var(--bg);border-radius:22px;padding:40px;position:relative}
.about-card ul{list-style:none;display:grid;gap:18px}
.about-card li{display:flex;gap:14px;align-items:flex-start}
.about-card li svg{flex:none;width:24px;height:24px;color:var(--accent);margin-top:2px}
.about-card li b{display:block;color:var(--navy)}
.about-card li span{color:var(--muted);font-size:.95rem}
.about p+p{margin-top:14px}
.about p{color:var(--muted)}

/* Services */
.services{background:var(--bg)}
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.svc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px;transition:.25s;position:relative;overflow:hidden}
.svc::after{content:"";position:absolute;inset-inline-start:0;bottom:0;height:3px;width:0;background:var(--accent);transition:.3s}
.svc:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.svc:hover::after{width:100%}
.svc-ico{width:56px;height:56px;border-radius:14px;display:grid;place-items:center;background:rgba(242,140,40,.12);color:var(--accent);margin-bottom:20px}
.svc-ico svg{width:28px;height:28px}
.svc h3{font-size:1.2rem;margin-bottom:10px}
.svc p{color:var(--muted);font-size:.95rem}
.svc ul{list-style:none;margin-top:14px;display:grid;gap:6px}
.svc li{font-size:.88rem;color:var(--ink);padding-inline-start:16px;position:relative}
.svc li::before{content:"";position:absolute;inset-inline-start:0;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--cyan)}

/* Consulting strip */
.consult{background:var(--navy);color:#fff}
.consult h2{color:#fff}
.consult .lead{color:rgba(255,255,255,.7)}
.consult-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.c-item{border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:28px 24px;background:rgba(255,255,255,.03)}
.c-item .num{font-size:.85rem;font-weight:800;color:var(--accent)}
.c-item h3{color:#fff;font-size:1.1rem;margin:10px 0 8px}
.c-item p{color:rgba(255,255,255,.65);font-size:.92rem}

/* Sectors */
.sector-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.sector{display:flex;align-items:center;gap:14px;padding:22px;border:1px solid var(--line);border-radius:var(--radius);font-weight:700;color:var(--navy);transition:.2s}
.sector:hover{border-color:var(--accent);box-shadow:var(--shadow)}
.sector svg{width:30px;height:30px;color:var(--cyan);flex:none}

/* Process */
.process{background:var(--bg)}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;counter-reset:s}
.step{background:#fff;border-radius:var(--radius);padding:26px 22px;border:1px solid var(--line);position:relative}
.step::before{counter-increment:s;content:"0" counter(s);font-size:2.2rem;font-weight:900;color:rgba(242,140,40,.25);display:block;line-height:1;margin-bottom:12px}
.step h3{font-size:1.05rem;margin-bottom:6px}
.step p{font-size:.9rem;color:var(--muted)}

/* Why */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.why{padding:28px;border-radius:var(--radius);border:1px solid var(--line)}
.why svg{width:34px;height:34px;color:var(--accent);margin-bottom:14px}
.why h3{font-size:1.1rem;margin-bottom:8px}
.why p{color:var(--muted);font-size:.94rem}
.tools{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:48px}
.tools span{padding:9px 18px;border-radius:999px;background:var(--bg);border:1px solid var(--line);font-weight:700;font-size:.85rem;color:var(--navy-2)}

/* CTA */
.cta{padding:0}
.cta-box{background:linear-gradient(120deg,var(--accent),#E8661A);border-radius:24px;padding:56px;display:flex;justify-content:space-between;align-items:center;gap:30px;color:#fff;transform:translateY(60px);position:relative;z-index:2;box-shadow:0 25px 50px rgba(232,102,26,.3)}
.cta-box h2{color:#fff;margin:0 0 8px;font-size:clamp(1.5rem,2.8vw,2.1rem)}
.cta-box p{opacity:.9}
.cta-box .btn{background:#fff;color:var(--accent-d);flex:none}
.cta-box .btn:hover{background:var(--navy);color:#fff}

/* Contact */
.contact{background:var(--navy);color:#fff;padding-top:160px}
.contact h2{color:#fff}
.contact .lead{color:rgba(255,255,255,.7)}
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px}
.info{display:grid;gap:16px;margin-top:30px}
.info a,.info div{display:flex;gap:16px;align-items:center;padding:18px 20px;border-radius:var(--radius);background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);transition:.2s}
.info a:hover{border-color:var(--accent)}
.info svg{width:24px;height:24px;color:var(--accent);flex:none}
.info small{display:block;color:rgba(255,255,255,.55);font-size:.8rem}
.info b{font-weight:700;direction:ltr;unicode-bidi:isolate}
form.quote{background:#fff;color:var(--ink);border-radius:20px;padding:36px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
form.quote h3{grid-column:1/-1;font-size:1.3rem}
form.quote label{display:grid;gap:6px;font-size:.85rem;font-weight:700;color:var(--navy)}
form.quote .full{grid-column:1/-1}
form.quote input,form.quote select,form.quote textarea{font:inherit;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);width:100%}
form.quote input:focus,form.quote select:focus,form.quote textarea:focus{outline:2px solid var(--accent);border-color:transparent;background:#fff}
form.quote textarea{min-height:110px;resize:vertical}
form.quote .btn{justify-self:start}
.form-note{grid-column:1/-1;font-size:.8rem;color:var(--muted)}

/* Footer */
footer{background:#081726;color:rgba(255,255,255,.6);padding:36px 0;font-size:.88rem}
.foot{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.foot nav{display:flex;gap:22px;flex-wrap:wrap}
.foot a:hover{color:var(--accent)}

/* WhatsApp float */
.wa{position:fixed;inset-inline-end:22px;bottom:22px;width:56px;height:56px;border-radius:50%;background:#25D366;display:grid;place-items:center;box-shadow:0 10px 25px rgba(0,0,0,.25);z-index:60;transition:.2s}
.wa:hover{transform:scale(1.08)}
.wa svg{width:30px;height:30px;color:#fff}

/* Reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

/* Responsive */
@media (max-width:1080px){
  .svc-grid,.why-grid{grid-template-columns:repeat(2,1fr)}
  .consult-grid,.sector-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:1024px){
  .burger{display:block}
  .menu{position:fixed;inset:0 0 auto 0;top:0;flex-direction:column;align-items:stretch;gap:0;background:var(--navy);padding:84px 16px 24px;transform:translateY(-110%);transition:.3s;box-shadow:0 20px 40px rgba(0,0,0,.3)}
  .menu.open{transform:none}
  .menu a{display:block;padding:14px 8px;border-bottom:1px solid rgba(255,255,255,.08);font-size:1.05rem}
  .nav .btn-primary{display:none}
  .brand,.nav-actions{position:relative;z-index:2}
  .hero-grid,.about-grid,.contact-grid{grid-template-columns:1fr}
  .hero-visual{max-width:520px}
  section{padding:72px 0}
  .cta-box{flex-direction:column;align-items:flex-start;padding:40px 28px}
}
@media (max-width:600px){
  .svc-grid,.why-grid,.consult-grid,.sector-grid,.steps{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:repeat(3,1fr);gap:12px}
  .hero-stats b{font-size:1.5rem}
  form.quote{grid-template-columns:1fr;padding:26px 20px}
  .about-card{padding:28px 22px}
  .brand-text small{display:none}
  .foot{flex-direction:column;text-align:center}
}