:root{
  --steel-dark:#141a20;
  --steel:#1e2833;
  --steel-light:#2b3a48;
  --silver:#c7d0d8;
  --silver-light:#eef2f5;
  --alu:#9aa8b4;
  --blue:#1c4e80;
  --blue-light:#2f6db0;
  --molten:#e0641b;
  --molten-light:#f6902f;
  --muted:#8b97a3;
  --white:#ffffff;
  --radius:14px;
  --shadow:0 12px 34px rgba(10,16,22,0.28);
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:'Rajdhani','Tajawal',sans-serif;
  color:var(--silver-light);
  background:var(--steel-dark);
  line-height:1.8;
  overflow-x:hidden;
}
body.lang-ar{font-family:'Tajawal',sans-serif;}
img{max-width:100%;display:block;}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
section{padding:96px 0;position:relative;}
.tag{
  display:inline-block;color:var(--molten-light);font-weight:700;
  font-size:.8rem;letter-spacing:3px;text-transform:uppercase;
  margin-bottom:14px;
}
h1,h2,h3{color:var(--white);font-weight:900;line-height:1.25;}
h2{font-size:2.3rem;margin-bottom:16px;}
.section-head{text-align:center;max-width:660px;margin:0 auto 60px;}
.section-head p{color:var(--muted);font-size:1.05rem;}
.btn{
  display:inline-flex;align-items:center;gap:10px;padding:15px 34px;
  border-radius:50px;font-weight:700;font-size:1rem;cursor:pointer;
  border:none;transition:.25s;font-family:inherit;
}
.btn-primary{background:linear-gradient(135deg,var(--molten),var(--molten-light));color:#fff;box-shadow:0 10px 24px rgba(224,100,27,.35);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(224,100,27,.5);}
.btn-ghost{border:2px solid rgba(199,208,216,.4);color:var(--silver-light);background:transparent;}
.btn-ghost:hover{border-color:var(--molten);color:#fff;}

/* metallic divider line */
.metal-line{height:3px;width:64px;background:linear-gradient(90deg,var(--molten),transparent);margin:0 auto 22px;border-radius:3px;}

/* ===== LOGO ===== */
.logo-mark{height:38px;width:auto;flex:0 0 auto;display:block;}
.logo-wrap{display:flex;align-items:center;gap:12px;}
.logo-wrap .lt{font-family:'Rajdhani',sans-serif;font-weight:700;font-size:1.4rem;color:#fff;letter-spacing:1px;line-height:1;}
.logo-wrap .lt small{display:block;font-size:.62rem;letter-spacing:3px;color:var(--molten-light);font-weight:600;}

/* ===== NAV ===== */
header{
  position:fixed;top:0;right:0;left:0;z-index:1000;
  background:rgba(20,26,32,.82);backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(199,208,216,.08);transition:.3s;
}
nav{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;max-width:1200px;margin:0 auto;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links a{font-weight:500;color:var(--silver);font-size:.98rem;position:relative;padding:4px 0;transition:.2s;}
.nav-links a:hover,.nav-links a.active{color:#fff;}
.nav-links a::after{content:"";position:absolute;bottom:-2px;right:0;width:0;height:2px;background:var(--molten);transition:.25s;}
html[dir="ltr"] .nav-links a::after{right:auto;left:0;}
.nav-links a:hover::after,.nav-links a.active::after{width:100%;}
.nav-right{display:flex;align-items:center;gap:14px;}

.lang-switch{display:flex;align-items:center;gap:2px;background:rgba(199,208,216,.1);border:1px solid rgba(199,208,216,.25);border-radius:40px;padding:3px;}
.lang-switch button{
  background:transparent;border:none;color:var(--silver);cursor:pointer;
  font-family:'Rajdhani',sans-serif;font-weight:700;font-size:.82rem;letter-spacing:1px;
  padding:6px 13px;border-radius:30px;transition:.2s;
}
.lang-switch button.active{background:var(--molten);color:#fff;}
.lang-switch button:hover:not(.active){color:#fff;}

.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;}
.burger span{width:26px;height:2px;background:#fff;border-radius:2px;}

/* ===== PAGE HEADER (for inner pages) ===== */
.page-hero{
  min-height:46vh;display:flex;align-items:center;
  padding:150px 0 60px;position:relative;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg, rgba(20,26,32,.95) 20%, rgba(20,26,32,.6) 100%),
    url('images/furnace_fire.jpg') center/cover;
  z-index:-2;
}
.page-hero h1{font-size:2.6rem;margin-bottom:14px;}
.page-hero p{color:var(--silver);font-size:1.1rem;max-width:600px;}
.breadcrumb{color:var(--muted);font-size:.85rem;margin-bottom:16px;}
.breadcrumb a{color:var(--molten-light);}

/* ===== HERO ===== */
.hero{
  min-height:100vh;display:flex;align-items:center;
  padding:120px 0 80px;position:relative;overflow:hidden;
}
.hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;}
.hero-overlay{
  position:absolute;inset:0;z-index:-1;
  background:linear-gradient(270deg, rgba(20,26,32,.96) 0%, rgba(20,26,32,.75) 45%, rgba(20,26,32,.45) 100%);
}
html[dir="rtl"] .hero-overlay{background:linear-gradient(90deg, rgba(20,26,32,.96) 0%, rgba(20,26,32,.75) 45%, rgba(20,26,32,.45) 100%);}
.hero-inner{max-width:640px;}
.hero h1{font-size:3.4rem;margin-bottom:22px;}
.hero h1 span{color:var(--molten-light);}
.hero p.lead{font-size:1.2rem;color:var(--silver);margin-bottom:36px;max-width:560px;}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;}
.hero-badges{display:flex;gap:38px;flex-wrap:wrap;margin-top:52px;}
.hero-badges div b{display:block;font-family:'Rajdhani',sans-serif;font-size:2rem;color:#fff;font-weight:700;}
.hero-badges div span{font-size:.85rem;color:var(--muted);}

/* ===== ABOUT ===== */
.about{background:var(--steel-dark);}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.about-text .tag{margin-bottom:10px;}
.about-text p{color:var(--muted);margin-bottom:16px;}
.about-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);position:relative;}
.about-img img{width:100%;height:100%;object-fit:cover;min-height:360px;}
.about-img::after{content:"";position:absolute;inset:0;border:1px solid rgba(199,208,216,.12);border-radius:var(--radius);}

.about-media{display:flex;align-items:center;justify-content:center;}
.mini-vid-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;max-width:400px;width:100%;}
.mini-vid-grid .mini-vid{
  width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:12px;
  box-shadow:var(--shadow);border:1px solid rgba(199,208,216,.12);background:#000;
}
.mini-vid-grid .mini-vid.mirror{transform:scaleX(-1);}

/* ===== FEATURES ===== */
.features{background:var(--steel);}
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.feat-card{
  background:var(--steel-light);border:1px solid rgba(199,208,216,.08);
  padding:34px 24px;border-radius:var(--radius);text-align:center;transition:.3s;
}
.feat-card:hover{transform:translateY(-6px);border-color:rgba(224,100,27,.4);}
.feat-icon{font-size:2rem;margin-bottom:16px;display:block;}
.feat-card h3{font-size:1.1rem;margin-bottom:10px;}
.feat-card p{color:var(--muted);font-size:.92rem;}

/* ===== PROCESS ===== */
.process{background:var(--steel-dark);}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.step{background:var(--steel);border-radius:var(--radius);padding:32px 24px;position:relative;border-top:3px solid var(--molten);}
.step-num{font-family:'Rajdhani',sans-serif;font-size:2.6rem;font-weight:700;color:rgba(224,100,27,.35);line-height:1;margin-bottom:12px;}
.step h4{color:#fff;font-size:1.08rem;margin-bottom:10px;}
.step p{color:var(--muted);font-size:.9rem;}

/* ===== PRODUCTS ===== */
.products{background:var(--steel);}
.prod-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;max-width:820px;margin:0 auto;}
.prod-card{background:var(--steel-dark);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.3s;border:1px solid rgba(199,208,216,.06);}
.prod-card:hover{transform:translateY(-6px);}
.prod-card .ph{height:210px;overflow:hidden;}
.prod-card .ph img,.prod-card .ph video{width:100%;height:100%;object-fit:cover;transition:.4s;background:#000;}
.prod-card:hover .ph img,.prod-card:hover .ph video{transform:scale(1.07);}
.prod-body{padding:24px;}
.prod-body h3{font-size:1.15rem;margin-bottom:8px;}
.prod-body p{color:var(--muted);font-size:.92rem;}

/* ===== VIDEOS ===== */
.videos{background:var(--steel);}
.vid-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;}
.vid-card{background:var(--steel-dark);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid rgba(199,208,216,.07);transition:.3s;}
.vid-card:hover{transform:translateY(-6px);border-color:rgba(224,100,27,.35);}
.vid-card video{width:100%;display:block;background:#000;aspect-ratio:16/9;object-fit:cover;}
.vid-cap{padding:18px 22px;}
.vid-cap h3{font-size:1.08rem;margin-bottom:6px;}
.vid-cap p{color:var(--muted);font-size:.88rem;}

/* ===== GALLERY ===== */
.gallery{background:var(--steel-dark);}
.gal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.gal-grid a{border-radius:12px;overflow:hidden;position:relative;display:block;height:220px;}
.gal-grid img{width:100%;height:100%;object-fit:cover;transition:.4s;}
.gal-grid a:hover img{transform:scale(1.08);}
.gal-grid a::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 60%,rgba(20,26,32,.5));}

/* ===== CTA STRIP ===== */
.cta-strip{
  background:linear-gradient(120deg,var(--blue),var(--steel-light));
  border-radius:24px;margin:0 24px;padding:56px 48px;text-align:center;
  position:relative;overflow:hidden;
}
.cta-strip h2{font-size:2rem;margin-bottom:14px;}
.cta-strip p{color:var(--silver);max-width:560px;margin:0 auto 28px;}

/* ===== CONTACT ===== */
.contact{background:var(--steel);}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;}
.contact-info .ci{display:flex;align-items:center;gap:16px;margin-bottom:22px;}
.contact-info .ic{width:50px;height:50px;flex:0 0 50px;border-radius:12px;background:var(--steel-light);display:flex;align-items:center;justify-content:center;font-size:1.3rem;}
.contact-info b{color:#fff;display:block;font-size:.98rem;}
.contact-info span{color:var(--muted);font-size:.9rem;}
form.order-form{background:var(--steel-dark);padding:36px;border-radius:var(--radius);border:1px solid rgba(199,208,216,.08);}
.order-form label{display:block;font-size:.85rem;font-weight:700;margin-bottom:6px;color:var(--silver);}
.order-form input,.order-form textarea{
  width:100%;padding:13px 16px;border-radius:10px;border:1px solid rgba(199,208,216,.15);
  margin-bottom:18px;font-family:inherit;font-size:.95rem;background:var(--steel);color:#fff;
}
.order-form input:focus,.order-form textarea:focus{outline:none;border-color:var(--molten);}
.order-form button{width:100%;justify-content:center;}

/* ===== FOOTER ===== */
footer{background:#0e1318;color:var(--muted);padding:56px 0 24px;}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;margin-bottom:36px;}
footer h5{color:#fff;font-size:.95rem;margin-bottom:16px;}
footer li{margin-bottom:10px;font-size:.88rem;}
footer li a:hover{color:var(--molten-light);}
.foot-bottom{border-top:1px solid rgba(199,208,216,.08);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.82rem;}

.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease;}
.reveal.in{opacity:1;transform:translateY(0);}

/* ===== LANGUAGE VISIBILITY (default = Turkish) ===== */
[data-ar],[data-en]{display:none;}
[data-tr]{display:inline;}
[data-tr].block{display:block;}

body.lang-ar [data-tr],body.lang-ar [data-en]{display:none;}
body.lang-ar [data-ar]{display:inline;}
body.lang-ar [data-ar].block{display:block;}

body.lang-en [data-tr],body.lang-en [data-ar]{display:none;}
body.lang-en [data-en]{display:inline;}
body.lang-en [data-en].block{display:block;}

/* ===== RESPONSIVE ===== */
@media (max-width:1000px){
  .feat-grid,.steps{grid-template-columns:repeat(2,1fr);}
  .prod-grid,.gal-grid{grid-template-columns:repeat(2,1fr);}
  .about-grid,.contact-grid{grid-template-columns:1fr;}
  .hero h1{font-size:2.6rem;}
}
@media (max-width:680px){
  .nav-links{position:fixed;top:66px;right:0;left:0;background:var(--steel);flex-direction:column;gap:0;padding:14px 0;transform:translateY(-140%);transition:.3s;box-shadow:var(--shadow);}
  .nav-links.open{transform:translateY(0);}
  .nav-links a{padding:12px 24px;width:100%;}
  .burger{display:flex;}
  section{padding:64px 0;}
  .feat-grid,.steps,.prod-grid,.gal-grid,.foot-grid{grid-template-columns:1fr;}
  .hero h1{font-size:2.1rem;}
  .page-hero h1{font-size:2rem;}
  .cta-strip{padding:40px 24px;}
  .hero-badges{gap:24px;}
  .lang-switch{order:3;}
}