/* ================================================================
   SAMIA METALFER — "Industrial Light" design system
   Fond blanc, accents rouge vif, hero sombre avec photo (pas de vidéo),
   typographie forte, sections en diagonale.
   ================================================================ */
:root{
  --black:#0a0a0c;
  --black-2:#131317;
  --black-3:#1b1b20;
  --red:#e30613;
  --red-dark:#a30410;
  --white:#ffffff;
  --ink:#111214;
  --gray:#5b5f66;
  --gray-dim:#8a8d93;
  --paper:#f4f4f5;
  --line:rgba(0,0,0,.08);
  --line-dark:rgba(255,255,255,.1);
  --font-display:'Archivo Black','Poppins',sans-serif;
  --font:'Poppins',sans-serif;
  --ease:cubic-bezier(.16,1,.3,1);
}
.lang-ar{ --font:'Cairo','Poppins',sans-serif; --font-display:'Cairo','Poppins',sans-serif; }
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;overflow-x:hidden}
body{font-family:var(--font);color:var(--ink);line-height:1.6;overflow-x:hidden;background:var(--white)}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.container{max-width:1280px;margin:0 auto;padding:0 24px}
ul{list-style:none}
::selection{background:var(--red);color:#fff}

/* ---- Header ---- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);transition:.3s var(--ease)}
.site-header.scrolled{box-shadow:0 10px 30px rgba(0,0,0,.06)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:80px}
.logo img{height:36px}
.main-nav{display:flex;gap:32px}
.main-nav a{font-weight:600;font-size:.82rem;text-transform:uppercase;letter-spacing:1.5px;position:relative;padding:6px 0;color:var(--ink)}
.main-nav a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--red);transition:.3s var(--ease)}
.main-nav a:hover::after,.main-nav a.active::after{width:100%}
.header-right{display:flex;align-items:center;gap:18px}
.lang-switch{display:flex;gap:4px;border:1px solid var(--line);border-radius:20px;padding:4px}
.lang-switch a{padding:4px 10px;border-radius:16px;font-size:.72rem;font-weight:700;color:var(--gray);letter-spacing:1px}
.lang-switch a.active{background:var(--red);color:#fff}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer}
.burger span{width:24px;height:2px;background:var(--ink)}

/* ---- Hero (dark photo, no video — reliable on mobile) ---- */
.hero{position:relative;min-height:88vh;display:flex;align-items:flex-end;overflow:hidden;background:var(--black)}
.hero-media{position:absolute;inset:0;z-index:0}
.hero-bg{width:100%;height:100%;object-fit:cover;animation:heroZoom 18s ease-in-out infinite alternate}
@keyframes heroZoom{from{transform:scale(1)}to{transform:scale(1.08)}}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,6,8,.5) 0%,rgba(6,6,8,.72) 60%,rgba(6,6,8,.92) 100%);z-index:1}
.hero-content{position:relative;z-index:2;padding:130px 0 70px;width:100%;color:#fff}
.hero-kicker{display:flex;align-items:center;gap:12px;margin-bottom:20px;flex-wrap:wrap}
.hero-kicker .bar{width:40px;height:3px;background:var(--red);flex-shrink:0}
.hero-kicker span{font-size:.72rem;font-weight:700;letter-spacing:3px;text-transform:uppercase;color:#c9cacd}
.hero h1{font-family:var(--font-display);font-size:clamp(1.9rem,7vw,4.6rem);line-height:1.05;font-weight:900;letter-spacing:-.5px;text-transform:uppercase;max-width:16ch;word-wrap:break-word}
.hero p{margin-top:18px;font-size:1.05rem;color:#c9cacd;max-width:44ch}
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 30px;font-weight:700;font-size:.82rem;letter-spacing:1.5px;text-transform:uppercase;transition:.3s var(--ease);border:2px solid transparent;clip-path:polygon(0 0,100% 0,100% 70%,94% 100%,0 100%)}
.btn-primary{background:var(--red);color:#fff;margin-top:28px}
.btn-primary:hover{background:#fff;color:var(--black);transform:translateX(4px)}

.stats-bar{position:relative;z-index:2;margin-top:36px;background:var(--black-2);border-top:2px solid var(--red);display:flex;flex-wrap:wrap}
.stat{flex:1 1 150px;text-align:left;padding:22px 24px;border-right:1px solid var(--line-dark)}
.stat:last-child{border-right:none}
.stat-num{display:block;font-family:var(--font-display);font-size:2rem;font-weight:900;color:var(--red);line-height:1}
.stat-label{font-size:.68rem;color:#a7a9ad;text-transform:uppercase;letter-spacing:1.2px;margin-top:6px;display:block}

/* ---- Section rhythm (light) ---- */
.section{position:relative;padding:110px 0;background:var(--white)}
.section-alt{background:var(--paper)}
.section-cut-top{clip-path:polygon(0 40px,100% 0,100% 100%,0 100%)}
.section-cut-top-r{clip-path:polygon(0 0,100% 40px,100% 100%,0 100%)}
.kicker{display:flex;align-items:center;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.kicker .bar{width:40px;height:3px;background:var(--red);flex-shrink:0}
.kicker span{font-size:.72rem;font-weight:700;letter-spacing:3px;text-transform:uppercase;color:var(--red)}
.section-title{font-family:var(--font-display);font-size:clamp(1.7rem,3.6vw,2.9rem);font-weight:900;text-transform:uppercase;letter-spacing:-.5px;max-width:18ch;color:var(--ink)}
.underline{display:none}

.grid{display:grid;gap:22px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}

/* ---- Service cards ---- */
.tilt-card{background:#fff;border:1px solid var(--line);border-left:3px solid var(--red);transition:.35s var(--ease);position:relative;overflow:hidden;transform-style:preserve-3d;will-change:transform;box-shadow:0 4px 20px rgba(0,0,0,.04)}
.tilt-card:hover{box-shadow:0 20px 44px rgba(0,0,0,.1)}
.card-img{height:200px;overflow:hidden;clip-path:polygon(0 0,100% 0,100% 88%,0 100%)}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.tilt-card:hover .card-img img{transform:scale(1.08)}
.card-body{padding:24px}
.icon-badge{width:42px;height:42px;background:var(--red);display:flex;align-items:center;justify-content:center;margin-bottom:14px;clip-path:polygon(0 0,100% 0,100% 76%,76% 100%,0 100%)}
.icon-badge svg{width:20px;height:20px;fill:none;stroke:#fff;stroke-width:1.8}
.card-body h3{font-family:var(--font-display);font-size:.95rem;text-transform:uppercase;letter-spacing:.4px;margin-bottom:8px;color:var(--ink)}
.card-body p{font-size:.85rem;color:var(--gray)}

/* ---- Gallery ---- */
.gallery-item{position:relative;overflow:hidden;height:250px;clip-path:polygon(0 0,100% 0,100% 92%,92% 100%,0 100%);box-shadow:0 4px 20px rgba(0,0,0,.06);display:block;cursor:pointer}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.gallery-item:hover img{transform:scale(1.1)}
.gallery-caption{position:absolute;bottom:0;left:0;right:0;padding:20px;background:linear-gradient(0deg,rgba(0,0,0,.85),transparent);color:#fff;font-weight:700;font-size:.82rem;text-transform:uppercase;letter-spacing:1px;opacity:0;transform:translateY(12px);transition:.35s var(--ease)}
.gallery-item:hover .gallery-caption{opacity:1;transform:translateY(0)}
.gallery-item::before{content:'';position:absolute;top:14px;left:14px;width:24px;height:2px;background:var(--red);z-index:2}
.play-badge{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:52px;height:52px;background:rgba(227,6,19,.92);border-radius:50%;display:flex;align-items:center;justify-content:center;z-index:2}
.play-badge svg{width:20px;height:20px;fill:#fff;margin-left:3px}

/* ---- Certifications ---- */
.cert-row{display:flex;align-items:center;gap:60px}
.cert-img{flex:0 0 360px;clip-path:polygon(0 0,100% 0,100% 90%,88% 100%,0 100%);box-shadow:0 20px 44px rgba(0,0,0,.12)}
.cert-text h2{font-family:var(--font-display);color:var(--ink);font-size:1.7rem;text-transform:uppercase;margin-bottom:16px}
.cert-text p{color:var(--gray)}

/* ---- Testimonials ---- */
.testimonial-card{background:var(--paper);border-top:3px solid var(--red);padding:34px;text-align:left;transition:.3s var(--ease)}
.testimonial-card:hover{transform:translateY(-6px);box-shadow:0 20px 40px rgba(0,0,0,.08)}
.quote-mark{font-family:var(--font-display);font-size:3rem;color:var(--red);opacity:.35;line-height:0;margin-bottom:12px;display:block}
.testimonial-card p{color:var(--ink);font-size:.92rem}
.stars{color:var(--red);margin:14px 0;letter-spacing:2px}
.testimonial-client{display:flex;align-items:center;gap:12px;margin-top:12px;padding-top:12px;border-top:1px solid var(--line)}
.testimonial-client img{width:30px;height:30px;object-fit:contain;opacity:.8}
.testimonial-client span{font-size:.8rem;color:var(--gray);text-transform:uppercase;letter-spacing:1px}

/* ---- Partners ---- */
.partners-row{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:48px}
.partner-logo{max-height:42px;max-width:120px;object-fit:contain;filter:grayscale(1);opacity:.55;transition:.3s}
.partner-logo:hover{filter:none;opacity:1}

/* ---- CTA banner ---- */
.cta-banner{position:relative;background:var(--red);padding:70px 0;text-align:center;clip-path:polygon(0 26px,100% 0,100% 100%,0 calc(100% - 26px))}
.cta-banner h2{font-family:var(--font-display);color:#fff;font-size:clamp(1.5rem,4vw,2.6rem);text-transform:uppercase;letter-spacing:-.5px;margin-bottom:22px}
.cta-banner .btn-primary{background:var(--black)}
.cta-banner .btn-primary:hover{background:#fff;color:var(--black)}

/* ---- Footer (kept dark — grounds the page) ---- */
.site-footer{background:var(--black);color:#c9cacd;border-top:1px solid var(--line-dark)}
.social-row{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;padding:22px 0;border-bottom:1px solid var(--line-dark)}
.social-row span{font-size:.76rem;color:#a7a9ad;text-transform:uppercase;letter-spacing:1px}
.social-icons{display:flex;gap:20px;flex-wrap:wrap}
.social-icons a{font-size:.76rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:#fff}
.social-icons a:hover{color:var(--red)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:28px;padding:54px 0}
.footer-grid h4{color:var(--red);margin-bottom:16px;font-size:.76rem;text-transform:uppercase;letter-spacing:1.5px}
.footer-grid p,.footer-grid a{display:block;font-size:.84rem;color:#a7a9ad;margin-bottom:9px}
.footer-grid a:hover{color:#fff}
.footer-bottom{text-align:center;font-size:.74rem;padding:20px 0;border-top:1px solid var(--line-dark);color:#6f7176}
.footer-bottom a{color:var(--red);font-weight:600}

/* ---- WhatsApp float ---- */
.whatsapp-float{position:fixed;bottom:22px;left:22px;z-index:999;background:#25D366;width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(0,0,0,.3);animation:pulse 2.4s infinite}
.lang-ar .whatsapp-float{left:auto;right:22px}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(37,211,102,.5)}70%{box-shadow:0 0 0 14px rgba(37,211,102,0)}100%{box-shadow:0 0 0 0 rgba(37,211,102,0)}}

/* ---- Video lightbox (click-to-play project videos) ---- */
.video-lightbox{position:fixed;inset:0;background:rgba(6,6,8,.94);z-index:2000;display:none;align-items:center;justify-content:center;padding:20px}
.video-lightbox.open{display:flex}
.video-lightbox video{width:100%;max-width:900px;max-height:82vh;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.video-lightbox-close{position:absolute;top:20px;right:24px;background:none;border:none;color:#fff;font-size:2rem;cursor:pointer;line-height:1}

/* ---- Fade-in on load — pure CSS, never depends on JS running.
   (Previously this relied on JavaScript adding a class, and if the script
   failed to load for any reason, the whole page stayed invisible forever.) ---- */
@keyframes fadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}
.reveal-up{animation:fadeUp .8s var(--ease) both}
.delay-1{animation-delay:.15s}
.delay-2{animation-delay:.3s}
.delay-3{animation-delay:.45s}

/* ---- Two-column responsive layout (about/contact) ---- */
.split-2{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.dark-input{width:100%;padding:14px 16px;background:#fff;border:1px solid var(--line);color:var(--ink);font-family:inherit;font-size:.92rem}
.dark-input::placeholder{color:var(--gray-dim)}
.dark-input:focus{outline:none;border-color:var(--red)}

/* ---- Responsive ---- */
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cert-row{flex-direction:column;gap:30px}
  .cert-img{flex:0 0 auto;width:100%}
  .split-2{grid-template-columns:1fr;gap:22px}
  .stat{flex:1 1 50%;border-bottom:1px solid var(--line-dark)}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .main-nav{position:fixed;top:80px;left:0;right:0;background:rgba(255,255,255,.98);backdrop-filter:blur(14px);flex-direction:column;padding:22px 24px;gap:18px;transform:translateY(-130%);transition:.3s var(--ease);border-bottom:1px solid var(--line)}
  .main-nav.open{transform:translateY(0)}
  .burger{display:flex}
  .grid-3{grid-template-columns:1fr}
  .section{padding:64px 0}
  .hero{min-height:92vh}
  .hero-content{padding:110px 0 40px}
  iframe{max-width:100%}
}
@media (max-width:480px){
  .grid-4{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .partners-row{gap:26px}
  .cert-img{clip-path:none}
}