/* nivova/css/style.css — grafit/antrasit zemin, amber vurgu, endüstriyel kurumsal görünüm */
:root{
  --bg:#121316;--bg2:#1c1e24;--panel:#f8f9fa;--ink:#16181d;--mut:#6a7280;--line:#e3e6ea;
  --amber:#f59e0b;--orange:#ff5722;--amber-d:#c77d05;--on-dark:#e9ebef;--mut-d:#9aa1ad;
  --font-h:"Barlow Condensed","Arial Narrow",system-ui,sans-serif;--font-b:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --hdr:112px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--hdr) - 24px)}
body{margin:0;background:var(--bg);color:var(--on-dark);font-family:var(--font-b);line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--amber);text-decoration:none}
a:hover{color:#fff}
h1,h2,h3{font-family:var(--font-h);line-height:1.08;margin:0 0 .5em;font-weight:700;letter-spacing:.01em}
h2{font-size:clamp(2rem,4.2vw,3.2rem);text-transform:uppercase}
h3{font-size:1.55rem}
p{margin:0 0 1em}
.wrap{width:min(1200px,100% - 40px);margin-inline:auto}
.center{text-align:center}
.skip{position:absolute;left:-999px;top:0;background:var(--amber);color:#000;padding:10px 16px;z-index:200}
.skip:focus{left:10px;top:10px}
.eyebrow{font:600 .78rem/1 var(--font-b);letter-spacing:.2em;text-transform:uppercase;color:var(--amber);margin:0 0 14px}
.eyebrow.dark{color:var(--amber-d)}
.big{font-size:1.12rem;color:var(--mut-d)}

/* header */
.top{position:fixed;inset:0 0 auto 0;z-index:100;transition:background .3s,box-shadow .3s}
.tb{background:#0b0c0e;color:var(--mut-d);font-size:.8rem;max-height:40px;overflow:hidden;transition:max-height .3s}
.tb-in{display:flex;justify-content:space-between;align-items:center;gap:18px;min-height:36px}
.tb p{margin:0;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tb a{color:#d6dae1}.tb a:hover{color:var(--amber)}
.tb .sep{opacity:.35}
.top.solid .tb{max-height:0}
.top{background:linear-gradient(rgba(11,12,14,.78),rgba(11,12,14,0))}
.top.solid{background:rgba(18,19,22,.94);backdrop-filter:blur(8px);box-shadow:0 1px 0 rgba(255,255,255,.07)}
.bar{display:flex;align-items:center;justify-content:space-between;height:76px;gap:18px}
.brand img{height:50px;width:auto}
.nav{display:flex;align-items:center;gap:4px}
.nav a{color:var(--on-dark);font-weight:500;font-size:.92rem;padding:9px 13px;border-radius:6px}
.nav a:hover{color:var(--amber)}
.nav .nav-cta{background:var(--amber);color:#111;font-weight:700;margin-left:8px}
.nav .nav-cta:hover{background:var(--orange);color:#fff}
.burger{display:none;background:none;border:0;width:46px;height:46px;position:relative;cursor:pointer}
.burger span,.burger span::before,.burger span::after{content:"";position:absolute;left:11px;right:11px;height:3px;background:#fff;border-radius:2px;transition:.25s}
.burger span{top:21px}.burger span::before{left:0;right:0;top:-8px}.burger span::after{left:0;right:0;top:8px}
.burger[aria-expanded=true] span{background:transparent}
.burger[aria-expanded=true] span::before{top:0;transform:rotate(45deg)}
.burger[aria-expanded=true] span::after{top:0;transform:rotate(-45deg)}

/* hero */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden;background:var(--bg)}
.slides,.slide{position:absolute;inset:0}
.slide{width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity 1.4s ease;filter:saturate(.85)}
.slide.on{opacity:1}
.hero::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(90deg,rgba(18,19,22,.93) 0%,rgba(18,19,22,.72) 48%,rgba(18,19,22,.45) 100%),linear-gradient(0deg,var(--bg) 0%,transparent 35%)}
.hero-in{position:relative;z-index:2;padding:calc(var(--hdr) + 60px) 0 50px;max-width:1200px}
.hero h1{font-size:clamp(2.5rem,6.4vw,5.4rem);text-transform:uppercase;max-width:15em}
.hero h1 span{color:var(--amber)}
.lead{font-size:clamp(1.05rem,1.6vw,1.3rem);color:#cfd3db;max-width:36em;margin-bottom:1.6em}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;font:700 .95rem/1 var(--font-b);padding:17px 30px;border-radius:6px;border:2px solid transparent;cursor:pointer;transition:.2s;text-align:center}
.btn.primary{background:var(--amber);color:#111}
.btn.primary:hover{background:var(--orange);color:#fff}
.btn.ghost{border-color:rgba(255,255,255,.4);color:#fff;background:transparent}
.btn.ghost:hover{border-color:var(--amber);color:var(--amber)}
.btn.dark{background:var(--bg2);color:#fff}.btn.dark:hover{background:var(--amber);color:#111}
.stats{position:relative;z-index:2;list-style:none;margin:0 auto;padding:0;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid rgba(255,255,255,.14)}
.stats li{padding:22px 18px;border-right:1px solid rgba(255,255,255,.1)}
.stats li:last-child{border:0}
.stats b{display:block;font:700 clamp(2rem,3.6vw,3rem)/1 var(--font-h);color:var(--amber)}
.stats span{font-size:.85rem;color:var(--mut-d)}

/* bölümler */
.sec{padding:clamp(56px,8vw,110px) 0}
.sec.light{background:var(--panel);color:var(--ink)}
.sec.dark{background:var(--bg)}
.sec.light h2,.sec.light h3{color:var(--ink)}
.sec-head{max-width:720px;margin-bottom:40px}
.sec-head p{color:var(--mut-d);font-size:1.05rem}
.sec.light .sec-head p{color:var(--mut)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,72px);align-items:center}
.two.start{align-items:start}

/* hizmet kartları */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.svc{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:12px;padding:30px 28px;color:var(--ink);transition:transform .25s,box-shadow .25s,border-color .25s;position:relative;overflow:hidden}
.svc::after{content:"";position:absolute;left:0;top:0;height:4px;width:0;background:var(--amber);transition:width .3s}
.svc:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(18,19,22,.12);border-color:#d5d9df;color:var(--ink)}
.svc:hover::after{width:100%}
.svc svg{color:var(--amber-d);margin-bottom:16px}
.svc h3{margin-bottom:.35em}
.svc p{color:var(--mut);flex:1}
.svc .more{font-weight:700;font-size:.9rem;color:var(--amber-d)}

/* galeri */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.chip{background:transparent;color:var(--on-dark);border:1px solid rgba(255,255,255,.22);padding:10px 18px;border-radius:99px;font:600 .88rem var(--font-b);cursor:pointer;transition:.2s}
.chip:hover{border-color:var(--amber);color:var(--amber)}
.chip.on{background:var(--amber);border-color:var(--amber);color:#111}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}
.shot{margin:0;position:relative;border-radius:10px;overflow:hidden;background:var(--bg2)}
.shot{transition:opacity .25s ease,transform .25s ease}
.shot[hidden]{display:none}
.shot.out{opacity:0;transform:scale(.94)}
.shot.pre{opacity:0;transform:scale(.94)}
.shot button{display:block;width:100%;padding:0;border:0;background:none;cursor:zoom-in}
.shot img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s}
.shot:hover img{transform:scale(1.06)}
.shot figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 14px 10px;font-size:.82rem;font-weight:600;background:linear-gradient(transparent,rgba(0,0,0,.8));opacity:0;transform:translateY(6px);transition:.25s;pointer-events:none}
.shot:hover figcaption,.shot button:focus-visible+figcaption{opacity:1;transform:none}
#more{margin-top:30px}

/* lightbox */
.lb{position:fixed;inset:0;z-index:300;background:rgba(8,9,11,.95);display:flex;align-items:center;justify-content:center;padding:24px}
.lb[hidden]{display:none}
.lb img{max-width:92vw;max-height:84vh;border-radius:8px;object-fit:contain;background:#000}
.lb-x{position:absolute;top:14px;right:20px;font-size:2.4rem;line-height:1;color:#fff;background:none;border:0;cursor:pointer}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);font-size:3.2rem;color:#fff;background:rgba(255,255,255,.08);border:0;width:54px;height:72px;cursor:pointer;border-radius:8px}
.lb-nav:hover,.lb-x:hover{color:var(--amber)}
.lb-nav.prev{left:14px}.lb-nav.next{right:14px}
.lb-cap{position:absolute;left:0;right:0;bottom:16px;display:flex;justify-content:center;align-items:center;gap:12px;flex-wrap:wrap;color:#cfd3db;margin:0;font-size:.9rem;padding:0 16px}
.lb-badge{background:var(--amber);color:#111;font-weight:700;font-size:.74rem;letter-spacing:.04em;padding:5px 12px;border-radius:99px;text-transform:uppercase}

/* makina parkuru */
.mach-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line);background:#fff}
.mach{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:26px 18px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;min-height:230px;transition:background .25s}
.mach img{max-height:140px;width:auto;object-fit:contain;margin-bottom:14px;transition:transform .3s}
.mach span{font-weight:600;color:var(--ink)}
.mach:hover{background:#fff6e2}.mach:hover img{transform:scale(1.06)}

/* kurumsal */
.panel{background:var(--bg2);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:clamp(22px,3vw,38px)}
.mis{padding-left:1.3em;margin:0;color:#cfd3db}.mis li{margin:.5em 0}
.alpha{list-style:lower-alpha;padding-left:1.4em;margin:.5em 0 0}
.two p{color:#cfd3db}

/* referanslar */
.ref-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line);background:#fff}
.ref{border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;place-items:center;padding:30px;min-height:190px}
.ref img{max-height:130px;width:auto;object-fit:contain;transition:transform .3s}
.ref:hover img{transform:scale(1.06)}

/* teklif formu */
.ticks{list-style:none;padding:0;margin:26px 0 0}
.ticks li{padding-left:30px;position:relative;margin:.7em 0;color:#cfd3db}
.ticks li::before{content:"";position:absolute;left:0;top:.45em;width:16px;height:9px;border-left:3px solid var(--amber);border-bottom:3px solid var(--amber);transform:rotate(-45deg)}
.rfq{display:grid;gap:16px;background:var(--panel);color:var(--ink);padding:clamp(22px,3vw,36px);border-radius:14px}
.rfq label{display:grid;gap:6px;font-weight:600;font-size:.88rem}
.rfq input,.rfq select,.rfq textarea{font:inherit;font-weight:400;padding:12px 14px;border:1px solid #cfd5dc;border-radius:8px;background:#fff;width:100%;color:var(--ink)}
.rfq input:focus,.rfq select:focus,.rfq textarea:focus{outline:2px solid var(--amber);border-color:var(--amber)}
.rfq input[type=file]{padding:10px}
.rfq .ck{display:flex;align-items:flex-start;gap:10px;font-weight:500}
.rfq .ck input{width:auto;margin-top:.3em}
.rfq .ck.center-y{align-self:end;padding-bottom:12px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.dims{border:1px solid #cfd5dc;border-radius:8px;padding:8px 14px 12px;display:flex;align-items:center;gap:12px;margin:0;min-width:0}
.dims legend{font-weight:600;font-size:.88rem;padding:0 6px}
.dims input{min-width:0}
.dims span{font-weight:700;color:var(--mut)}
.wa{position:fixed;right:18px;bottom:18px;z-index:150;display:inline-flex;align-items:center;gap:10px;background:#25d366;color:#fff;font-weight:700;font-size:.92rem;padding:14px 20px 14px 16px;border-radius:99px;box-shadow:0 10px 28px rgba(0,0,0,.35);transition:transform .2s,background .2s}
.wa:hover{background:#1ebe5a;color:#fff;transform:translateY(-3px)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.flash{margin:0;padding:12px 16px;border-radius:8px;font-weight:600}
.flash.ok{background:#e6f7ec;color:#14632f}.flash.err{background:#fdeaea;color:#8a1f1f}
.form-msg{margin:0;font-weight:600;min-height:1.4em}
.form-msg.ok{color:#14632f}.form-msg.err{color:#a52222}
.rfq .btn.primary:disabled{opacity:.6;cursor:wait}

/* iletişim */
.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:30px}
.cbox{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px 22px}
.cbox h3{font-size:1.25rem;margin-bottom:.3em}
.cbox p{margin:0;color:var(--ink)}
.sec.light a{color:var(--amber-d)}.sec.light a:hover{color:var(--ink)}
.sec.light .btn.dark{color:#fff}.sec.light .btn.dark:hover{color:#111}

/* footer */
.foot{background:#0b0c0e;padding:44px 0 26px;color:var(--mut-d)}
.foot-row{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.foot-row img{height:48px;width:auto}
.foot-links{list-style:none;margin:0;padding:0;display:flex;gap:22px;flex-wrap:wrap}
.foot-links a{color:#d6dae1;font-size:.92rem}.foot-links a:hover{color:var(--amber)}
.foot-row.bottom{margin-top:30px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);font-size:.85rem}
.foot-row.bottom p{margin:0}
.bns{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(245,158,11,.5);color:var(--amber);padding:8px 14px;border-radius:99px;font-weight:600;font-size:.82rem}
.bns:hover{background:var(--amber);color:#111}

/* scroll ile beliren öğeler */
.rv{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}

@media (max-width:1000px){
  .burger{display:block}
  .nav{position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;background:rgba(18,19,22,.98);padding:10px 20px 20px;max-height:0;overflow:hidden;transition:max-height .3s;gap:0}
  .nav.open{max-height:90vh;overflow:auto}
  .nav a{padding:14px 6px;border-bottom:1px solid rgba(255,255,255,.07);border-radius:0}
  .nav .nav-cta{margin:14px 0 0;text-align:center;border-radius:6px;border:0}
  .top{background:rgba(18,19,22,.96)}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .two{grid-template-columns:1fr}
  .mach-grid{grid-template-columns:repeat(2,1fr)}
  .ref-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stats li:nth-child(2){border-right:0}
}
@media (max-width:760px){.tb p:first-child{display:none}.tb-in{justify-content:center}}
@media (max-width:600px){
  :root{--hdr:110px}
  .wa span{display:none}.wa{padding:15px}
  .svc-grid,.contact-grid,.grid2,.grid3{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr);gap:10px}
  .hero-cta .btn{flex:1 1 100%}
  .foot-row{justify-content:center;text-align:center}
  .lb-nav{width:42px;height:56px;font-size:2.4rem}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}html{scroll-behavior:auto}.rv{opacity:1;transform:none}}