:root{
  --navy:#1c232e; --navy-2:#2a3442; --yellow:#e2aa3c; --yellow-d:#c88f22;
  --ink:#1b2430; --muted:#5b6675; --bg:#f4f6f9; --card:#ffffff; --line:#e1e6ed;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Inter,system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
h1,h2,h3{font-family:"Barlow Condensed",sans-serif;line-height:1.05;letter-spacing:.3px}

/* demo banner */
.demo{background:var(--yellow);color:var(--navy);font-size:13px;text-align:center;padding:6px 12px;font-weight:600}

/* top bar */
.topbar{background:var(--navy);color:#c9d4e3;font-size:14px}
.topbar .wrap{display:flex;justify-content:space-between;gap:12px;padding-top:8px;padding-bottom:8px;flex-wrap:wrap}
.topbar a:hover{color:var(--yellow)}

/* header */
header{background:#1a2029;position:sticky;top:0;z-index:20;box-shadow:0 2px 14px rgba(0,0,0,.35);border-bottom:1px solid #313b4a}
header .wrap{display:flex;align-items:center;justify-content:space-between;height:80px}
/* logo: kırpılmış görünüm (görsel 1024x572, logo alanı ~ x60-960, y80-450) */
.logo{display:block;width:170px;height:75px;background:url("/logo-orijinal.webp") no-repeat;background-size:181px auto;background-position:-5px -10px;
  -webkit-mask-image:linear-gradient(to right,transparent,#000 6%,#000 94%,transparent),linear-gradient(to bottom,transparent,#000 10%,#000 90%,transparent);
  -webkit-mask-composite:source-in;mask-image:linear-gradient(to right,transparent,#000 6%,#000 94%,transparent),linear-gradient(to bottom,transparent,#000 10%,#000 90%,transparent);mask-composite:intersect}
nav ul{display:flex;gap:28px;list-style:none;font-weight:600;font-size:15px}
nav a{color:#e6eaf0;position:relative;padding:6px 0}
nav a:hover::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--yellow)}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--yellow);color:var(--navy);font-weight:700;padding:12px 22px;border-radius:4px;transition:.2s}
.btn:hover{background:var(--yellow-d)}
.btn.ghost{background:transparent;border:2px solid #fff;color:#fff}
.btn.ghost:hover{background:#fff;color:var(--navy)}
.menu-btn{display:none;background:none;border:0;font-size:28px;color:#e6eaf0;cursor:pointer}

/* hero */
.hero{position:relative;color:#fff;min-height:560px;display:flex;align-items:center;
  background:linear-gradient(100deg,rgba(24,30,40,.96) 0%,rgba(24,30,40,.82) 45%,rgba(24,30,40,.3) 100%),
  url("/foto/kolon-kalibi/kolon-kalibi-2.jpg") center/cover,var(--navy)}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:8px;
  background:repeating-linear-gradient(-45deg,var(--yellow) 0 18px,var(--navy) 18px 36px)}
.hero .wrap{position:relative;padding-top:60px;padding-bottom:80px}
.eyebrow{display:inline-block;color:var(--yellow);font-weight:600;letter-spacing:2px;text-transform:uppercase;font-size:13px;margin-bottom:14px}
.hero h1{font-size:clamp(40px,6vw,72px);max-width:720px;text-transform:uppercase}
.hero h1 span{color:var(--yellow)}
.hero p{max-width:560px;margin:20px 0 32px;font-size:18px;color:#dbe3ee}
.hero .actions{display:flex;gap:14px;flex-wrap:wrap}

/* stats */
.stats{background:#fff;border-bottom:1px solid var(--line)}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:30px 20px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-family:"Barlow Condensed";font-size:44px;color:var(--navy);line-height:1}
.stat span{color:var(--muted);font-size:14px}

section{padding:84px 0}
.sec-head{max-width:640px;margin-bottom:44px}
.sec-head h2{font-size:clamp(32px,4vw,46px);color:var(--navy);text-transform:uppercase}
.sec-head h2::after{content:"";display:block;width:60px;height:5px;background:var(--yellow);margin-top:14px}
.sec-head p{color:var(--muted);margin-top:16px}

/* products */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:22px}
.card{background:var(--card);border-radius:6px;overflow:hidden;border:1px solid var(--line);transition:.25s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(15,42,74,.12);border-color:var(--yellow)}
.card .img{aspect-ratio:4/3;background:#dfe5ec center/cover no-repeat}
.card .body{padding:20px;flex:1;display:flex;flex-direction:column}
.card h3{font-size:26px;color:var(--navy);text-transform:uppercase}
.card p{color:var(--muted);font-size:14.5px;margin:8px 0 16px;flex:1}
.card .more{color:var(--navy);font-weight:700;font-size:14px}
.card .more::after{content:" →";color:var(--yellow-d)}

/* about */
.about{background:#fff}
.about .wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.about .pic{aspect-ratio:5/4;border-radius:6px;position:relative;
  background:url("/foto/teleskopik/teleskopik-3.jpg") center/cover,var(--navy-2)}
.about .pic .badge{position:absolute;right:-18px;bottom:-18px;background:var(--yellow);color:var(--navy);padding:22px 26px;border-radius:4px;font-family:"Barlow Condensed";text-transform:uppercase;font-weight:700;line-height:1.1}
.about .pic .badge b{font-size:48px;display:block}
.timeline{list-style:none;margin-top:26px;border-left:3px solid var(--yellow);padding-left:22px}
.timeline li{margin-bottom:18px}
.timeline b{font-family:"Barlow Condensed";font-size:24px;color:var(--navy);display:block;line-height:1}

/* why */
.why{background:var(--navy);color:#fff}
.why .sec-head h2{color:#fff}
.why .sec-head p{color:#b9c6d8}
.feats{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.feat{background:var(--navy-2);padding:28px 24px;border-radius:6px;border-top:4px solid var(--yellow)}
.feat .ic{font-size:32px;margin-bottom:12px}
.feat h3{font-size:24px;text-transform:uppercase;margin-bottom:8px}
.feat p{color:#b9c6d8;font-size:14.5px}

/* refs */
.refs{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.refs img{background:#fff;border:1px solid var(--line);border-radius:6px;height:130px;width:100%;object-fit:contain;padding:22px;filter:grayscale(1);opacity:.8;transition:.25s}
.refs img:hover{filter:none;opacity:1;border-color:var(--yellow)}
@media (max-width:700px){.refs{grid-template-columns:1fr 1fr}}

/* gallery */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.filters button{font:inherit;font-size:14px;font-weight:600;padding:8px 16px;border-radius:30px;border:1px solid var(--line);background:#fff;color:var(--navy);cursor:pointer}
.filters button.on,.filters button:hover{background:var(--navy);color:#fff;border-color:var(--navy)}
.gal{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px}
.gal button{border:0;padding:0;cursor:zoom-in;aspect-ratio:1;border-radius:6px;overflow:hidden;background:#dfe5ec}
.gal img{width:100%;height:100%;object-fit:cover;transition:.3s}
.gal button:hover img{transform:scale(1.06)}
.lb{position:fixed;inset:0;background:rgba(10,14,20,.94);z-index:50;display:none;align-items:center;justify-content:center}
.lb.on{display:flex}
.lb img{max-width:92vw;max-height:86vh;border-radius:4px}
.lb button{position:absolute;background:rgba(255,255,255,.12);color:#fff;border:0;font-size:30px;width:52px;height:52px;border-radius:50%;cursor:pointer}
.lb .x{top:16px;right:16px}.lb .p{left:16px;top:50%}.lb .n{right:16px;top:50%}
.lb .c{position:absolute;bottom:14px;left:0;right:0;text-align:center;color:#b9c6d8;font-size:14px}
/* videos */
.videos{background:var(--navy)}
.videos .sec-head h2{color:#fff}.videos .sec-head p{color:#b9c6d8}
.vgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.vgrid video{width:100%;aspect-ratio:9/16;object-fit:cover;border-radius:6px;background:#000;border-top:4px solid var(--yellow)}
@media (max-width:900px){.vgrid{grid-template-columns:1fr 1fr}.gal{grid-template-columns:repeat(3,1fr)}}
@media (max-width:520px){.gal{grid-template-columns:repeat(2,1fr)}}

/* cta */
.cta{background:var(--yellow);padding:54px 0}
.cta .wrap{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.cta h2{font-size:clamp(28px,4vw,42px);color:var(--navy);text-transform:uppercase}
.cta .btn{background:var(--navy);color:#fff}
.cta .btn:hover{background:var(--navy-2)}

/* contact */
.contact .wrap{display:grid;grid-template-columns:1fr 1.3fr;gap:34px}
.contact .wrap>*{min-width:0}
.info strong{overflow-wrap:anywhere}
.info{background:#fff;border:1px solid var(--line);border-radius:6px;padding:30px}
.info .row{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}
.info .row:last-of-type{border-bottom:0}
.info .ic{width:42px;height:42px;flex:none;border-radius:50%;background:var(--navy);color:var(--yellow);display:grid;place-items:center;font-size:18px}
.info small{color:var(--muted);display:block;font-size:13px}
.info strong{color:var(--navy)}
form{display:grid;gap:12px;margin-top:20px}
input,select,textarea{font:inherit;padding:12px 14px;border:1px solid var(--line);border-radius:4px;background:var(--bg)}
textarea{min-height:90px;resize:vertical}
.map{border-radius:6px;overflow:hidden;border:1px solid var(--line);min-height:420px;position:relative}
.map .yol{position:absolute;right:12px;top:12px;box-shadow:0 6px 18px rgba(0,0,0,.25)}
.map iframe{width:100%;height:100%;min-height:420px;border:0}

footer{background:#0a1d33;color:#9fb0c6;font-size:14px;padding:40px 0 24px}
footer .wrap{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}
footer h4{color:#fff;font-family:"Barlow Condensed";font-size:20px;text-transform:uppercase;margin-bottom:10px}
footer ul{list-style:none}
footer li{margin:6px 0}
footer a:hover{color:var(--yellow)}
.copy{border-top:1px solid #1d3350;margin-top:28px;padding-top:18px;text-align:center}

/* floating call */
.fab{position:fixed;right:18px;bottom:18px;z-index:30;background:var(--yellow);color:var(--navy);width:60px;height:60px;border-radius:50%;display:grid;place-items:center;font-size:26px;box-shadow:0 8px 24px rgba(0,0,0,.25)}
.fab.wa{bottom:90px;background:#25d366;color:#fff}
.fab.wa svg{width:32px;height:32px;fill:#fff}
.btn.wa{background:#25d366;color:#fff}
.btn.wa:hover{background:#1ebe5a}
.btn.wa svg{width:20px;height:20px;fill:currentColor}
.info .ic.wa{background:#25d366;color:#fff}
.info .ic.wa svg{width:20px;height:20px;fill:#fff}

@media (max-width:900px){
  nav{display:none;position:absolute;top:80px;left:0;right:0;background:#1f2632;box-shadow:0 10px 20px rgba(0,0,0,.3)}
  nav.open{display:block}
  nav ul{flex-direction:column;gap:0;padding:8px 20px}
  nav li a{display:block;padding:12px 0;border-bottom:1px solid #313b4a}
  .menu-btn{display:block}
  header .btn{display:none}
  .stats .wrap{grid-template-columns:1fr 1fr}
  .stat:nth-child(2){border-right:0}
  .stat{border-bottom:1px solid var(--line)}
  .about .wrap,.contact .wrap{grid-template-columns:1fr}
  .about .pic .badge{right:12px;bottom:12px}
  .feats{grid-template-columns:1fr 1fr}
  footer .wrap{grid-template-columns:1fr}
  section{padding:60px 0}
  .hero{min-height:480px}
}
@media (max-width:520px){
  .feats{grid-template-columns:1fr}
  .topbar .mail{display:none}
  .stat b{font-size:36px}
}

/* ---- Ürün sayfaları ---- */
.sayfa-bas{background:var(--navy);color:#fff;padding:54px 0 46px;position:relative}
.sayfa-bas::after{content:"";position:absolute;left:0;right:0;bottom:0;height:6px;background:repeating-linear-gradient(-45deg,var(--yellow) 0 18px,var(--navy) 18px 36px)}
.sayfa-bas h1{font-size:clamp(34px,5vw,54px);text-transform:uppercase}
.sayfa-bas p{color:#c9d4e3;max-width:640px;margin-top:12px}
.urun-liste-bolum{padding:40px 0 80px}
.filters a{font-size:14px;font-weight:600;padding:8px 16px;border-radius:30px;border:1px solid var(--line);background:#fff;color:var(--navy)}
.filters a.on,.filters a:hover{background:var(--navy);color:#fff;border-color:var(--navy)}
.urun-kart .img{position:relative}
.rozet{display:inline-block;background:var(--yellow);color:var(--navy);font-weight:700;font-size:13px;padding:4px 10px;border-radius:4px}
.urun-kart .rozet{position:absolute;left:10px;top:10px}
.rozet-satir{margin:4px 0 6px}
.urun-kat{color:var(--muted);font-size:13px;text-transform:uppercase;letter-spacing:1px}
.urun-fiyat{font-family:"Barlow Condensed";font-size:22px;font-weight:700;color:var(--yellow-d)}
.urun-bos{background:#fff;border:1px solid var(--line);border-radius:6px;padding:40px 24px;text-align:center}
.urun-bos h2{font-size:30px;color:var(--navy);text-transform:uppercase}
.urun-bos p{color:var(--muted);margin-top:10px}
.urun-bos-dugme{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:20px}
.sayfa-bas .urun-bos-dugme{justify-content:flex-start}
.kirinti{font-size:14px;color:var(--muted);padding-top:22px;padding-bottom:4px;display:flex;flex-wrap:wrap;gap:6px}
.kirinti a{color:var(--navy);font-weight:600}
.urun-detay-bolum{padding:20px 0 70px}
.urun-detay{display:grid;grid-template-columns:1.15fr 1fr;gap:44px;align-items:start}
.urun-galeri>*+*{margin-top:12px}
.urun-ana{display:block;width:100%;border:0;padding:0;background:#dfe5ec;border-radius:6px;overflow:hidden;cursor:zoom-in}
.urun-ana img{width:100%;aspect-ratio:4/3;object-fit:cover}
.urun-kucukler{display:grid;grid-template-columns:repeat(6,1fr);gap:8px}
.urun-kucukler button{border:2px solid transparent;padding:0;border-radius:4px;overflow:hidden;cursor:pointer;background:#dfe5ec}
.urun-kucukler button.on{border-color:var(--yellow)}
.urun-kucukler img{width:100%;aspect-ratio:1;object-fit:cover}
.urun-bilgi h1{font-size:clamp(32px,4vw,48px);color:var(--navy);text-transform:uppercase;margin:6px 0 8px}
.urun-bilgi .eyebrow{color:var(--yellow-d)}
.urun-detay-fiyat{font-family:"Barlow Condensed";font-size:34px;font-weight:700;color:var(--navy)}
.urun-detay-aciklama{color:var(--muted);margin-top:8px;font-size:17px}
.urun-dugmeler{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:22px 0}
.urun-soru{font-weight:600;color:var(--navy);font-size:15px}
.urun-teknik{background:#fff;border:1px solid var(--line);border-left:4px solid var(--yellow);border-radius:6px;padding:20px 22px}
.urun-teknik h2{font-size:24px;color:var(--navy);text-transform:uppercase;margin-bottom:8px}
.urun-teknik ul{list-style:none}
.urun-teknik li{padding:8px 0;border-bottom:1px solid var(--line)}
.urun-teknik li:last-child{border-bottom:0}
.benzer{background:#fff;padding:60px 0}
.son-urunler{background:#fff}
@media (max-width:900px){.urun-detay{grid-template-columns:1fr;gap:26px}.urun-kucukler{grid-template-columns:repeat(4,1fr)}}