:root{
  --ink:#141618; --ink2:#2b2f33; --mute:#6b7279; --line:#dfe2e5;
  --paper:#f6f5f2; --white:#fff; --steel:#aeb4ba; --accent:#c8a96a;
  --r:6px; --max:1180px;
  font-family: "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);line-height:1.55;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;z-index:99;background:#fff;padding:8px 12px}

/* nav */
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:24px;padding:14px max(16px,calc((100% - var(--max))/2));background:rgba(20,22,24,.94);backdrop-filter:blur(8px);color:#fff}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;letter-spacing:.28em;font-size:18px}
.brand img{border-radius:4px}
.nav nav{display:flex;gap:26px;margin:0 auto;font-size:14px}
.nav nav a{text-decoration:none;opacity:.85}.nav nav a:hover{opacity:1}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:var(--r);font-size:14px;font-weight:600;text-decoration:none;border:1px solid transparent;cursor:pointer;font-family:inherit}
.btn-ghost{border-color:rgba(255,255,255,.5);color:#fff;padding:9px 16px}
.btn-light{background:#f2f0ea;color:var(--ink)}
.btn-dark{background:var(--ink);color:#fff;width:100%;justify-content:center;padding:14px}
.btn-dark:hover{background:var(--ink2)}
.btn-line{background:transparent;border-color:var(--ink);color:var(--ink)}
.badge{background:var(--accent);color:var(--ink);border-radius:20px;padding:0 7px;font-size:12px;line-height:18px}

/* hero */
.hero{position:relative;min-height:min(88vh,760px);display:flex;align-items:center;color:#fff;overflow:hidden;background:#111}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.78}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.72) 0%,rgba(0,0,0,.25) 55%,rgba(0,0,0,0) 100%)}
.hero-in{position:relative;z-index:2;width:100%;max-width:var(--max);margin:0 auto;padding:80px 16px}
.hero h1{font-size:clamp(46px,8vw,96px);line-height:.98;font-weight:400;letter-spacing:-.02em;margin:14px 0 22px}
.lead{font-size:17px;opacity:.9;margin:0 0 30px}
.eyebrow{font-size:12px;letter-spacing:.2em;text-transform:uppercase;font-weight:600;margin:0;opacity:.85}
.eyebrow.dark{color:var(--mute);opacity:1}
.hero-foot{position:absolute;z-index:2;left:0;right:0;bottom:0;display:flex;justify-content:space-between;padding:16px max(16px,calc((100% - var(--max))/2));font-size:11px;letter-spacing:.18em;border-top:1px solid rgba(255,255,255,.2);opacity:.8}
.band{display:flex;justify-content:center;gap:clamp(18px,6vw,90px);flex-wrap:wrap;padding:18px 16px;background:#1d2023;color:#cfd3d7;font-size:12px;letter-spacing:.2em;text-transform:uppercase}

/* sections */
section[id]{scroll-margin-top:66px}
.section{padding:clamp(64px,9vw,120px) 16px}
.section>*{max-width:var(--max);margin-left:auto;margin-right:auto}
.section.dark{background:var(--ink);color:#e9eaeb}
h2{font-size:clamp(32px,4.6vw,54px);line-height:1.05;font-weight:400;letter-spacing:-.015em;margin:12px 0 18px}
.sec-head{max-width:640px;margin:0 auto 40px 0}
.sec-head p:last-child{color:var(--mute)}
@media(min-width:900px){.sec-head{margin-left:calc((100% - var(--max))/2)}}

/* tabs */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px}
.tab{padding:10px 18px;border:1px solid var(--line);background:#fff;border-radius:40px;font:600 14px/1 inherit;font-family:inherit;cursor:pointer;color:var(--ink2)}
.tab[aria-selected=true]{background:var(--ink);border-color:var(--ink);color:#fff}

/* product */
.product{display:grid;grid-template-columns:1.25fr 1fr;gap:clamp(24px,4vw,56px);align-items:start;background:#fff;border:1px solid var(--line);border-radius:10px;padding:clamp(16px,3vw,32px)}
.product[hidden]{display:none}
.gal-main{aspect-ratio:4/3;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;cursor:zoom-in}
.gal-main img{width:100%;height:100%;object-fit:contain}
.gal-thumbs{display:flex;gap:10px;margin-top:10px}
.gal-thumbs button{width:76px;height:60px;padding:0;border:2px solid var(--line);border-radius:4px;overflow:hidden;background:#fff;cursor:pointer}
.gal-thumbs button[aria-current=true]{border-color:var(--ink)}
.gal-thumbs img{width:100%;height:100%;object-fit:cover}
.caption{font-size:12px;color:var(--mute);margin-top:8px}
.p-info h3{font-size:30px;font-weight:500;margin:6px 0 4px}
.p-info .kisa{color:var(--mute);margin:0 0 14px}
.specs{width:100%;border-collapse:collapse;margin:18px 0 22px;font-size:14px}
.specs th,.specs td{text-align:left;padding:9px 0;border-bottom:1px solid var(--line);vertical-align:top}
.specs th{color:var(--mute);font-weight:500;width:42%}
.qty{display:flex;align-items:center;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.stepper{display:flex;border:1px solid var(--line);border-radius:var(--r)}
.stepper button{width:40px;border:0;background:none;font-size:18px;cursor:pointer}
.stepper input{width:80px;border:0;text-align:center;font:600 15px inherit;font-family:inherit;padding:10px 0}
.added{font-size:13px;color:#2e7d32;min-height:20px;margin:0}

/* about */
.about{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.about p{color:#c4c8cc}
.values{list-style:none;padding:0;margin:28px 0 0;display:grid;gap:18px;counter-reset:v}
.values li{display:grid;grid-template-columns:42px 1fr;row-gap:2px;counter-increment:v}
.values li::before{content:"0" counter(v);grid-row:span 2;color:var(--accent);font-size:13px;padding-top:3px}
.values b{font-weight:600;color:#fff}.values span{color:#a9aeb3;font-size:14px}

/* contact */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.cart{margin:22px 0;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px 18px}
.cart h4{margin:0 0 8px;font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--mute)}
.cart ul{list-style:none;margin:0;padding:0}
.cart li{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:8px 0;border-top:1px solid var(--line);font-size:14px}
.cart li:first-child{border-top:0}
.cart .rm{border:0;background:none;color:var(--mute);cursor:pointer;font-size:13px;text-decoration:underline}
.cart .empty{color:var(--mute);font-size:14px;margin:0}
.contact-lines{list-style:none;padding:0;margin:0;font-size:15px;display:grid;gap:6px}
form{display:grid;gap:14px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:clamp(18px,3vw,30px)}
label{display:grid;gap:6px;font-size:13px;font-weight:600;color:var(--ink2)}
input,textarea{font:15px inherit;font-family:inherit;padding:11px 12px;border:1px solid #cfd3d7;border-radius:var(--r);background:#fbfbfa;width:100%}
input:focus,textarea:focus{outline:2px solid var(--ink);outline-offset:0;border-color:var(--ink)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.check{display:flex;gap:10px;align-items:flex-start;font-weight:400}
.check input{width:auto;margin-top:3px}
.form-msg{margin:0;font-size:14px;min-height:20px}
.form-msg.err{color:#b3261e}.form-msg.ok{color:#2e7d32}

/* footer */
.foot{background:#0f1112;color:#9aa0a6;font-size:13px;padding:40px 16px}
.foot-in{max-width:var(--max);margin:0 auto;display:grid;gap:14px}
.foot .brand{color:#fff;font-size:15px}
.foot ul{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:6px 22px}
.foot p{margin:0}

/* lightbox */
.lb{position:fixed;inset:0;z-index:100;background:rgba(0,0,0,.9);display:flex;align-items:center;justify-content:center;padding:24px}
.lb[hidden]{display:none}
.lb img{max-height:90vh;max-width:95vw;object-fit:contain;background:#fff;border-radius:4px}
.lb-x{position:absolute;top:12px;right:18px;font-size:36px;color:#fff;background:none;border:0;cursor:pointer}

@media(max-width:860px){
  .nav nav{display:none}
  .nav-cta{margin-left:auto}
  .product,.about,.contact{grid-template-columns:1fr}
  .about,.contact{gap:32px}
  .row2{grid-template-columns:1fr}
  .hero-foot span:last-child{display:none}
}

/* ürünler bandı — arka plan görseli */
.urunler{padding-top:0}
.section>.urun-band{max-width:none;margin:0 -16px clamp(32px,4vw,48px);padding:clamp(90px,11vw,150px) 16px clamp(44px,5vw,64px);color:#fff;
  background:linear-gradient(90deg,rgba(12,13,14,.86) 0%,rgba(12,13,14,.6) 45%,rgba(12,13,14,.2) 100%),url(assets/urunler-bg.webp) center 65%/cover no-repeat #1d2023}
.urun-band-in{max-width:var(--max);margin:0 auto}
.urun-band .sec-head{margin:0 0 34px}
.urun-band .sec-head p:last-child{color:rgba(255,255,255,.82)}
.urun-band .tabs{margin-bottom:0}
.urun-band .tab{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.4);color:#fff;backdrop-filter:blur(4px)}
.urun-band .tab:hover{background:rgba(255,255,255,.22)}
.urun-band .tab[aria-selected=true]{background:#fff;border-color:#fff;color:var(--ink)}
@media(max-width:860px){.section>.urun-band{background-position:62% 65%}}