:root{
  --navy:#0b2545;
  --navy-2:#13315c;
  --steel:#134074;
  --amber:#f5a623;
  --amber-d:#e08a00;
  --ink:#1a2432;
  --muted:#5b6a7d;
  --line:#e3e8ef;
  --bg:#ffffff;
  --bg-soft:#f4f7fb;
  --white:#ffffff;
  --shadow:0 10px 30px rgba(11,37,69,.08);
  --shadow-lg:0 20px 50px rgba(11,37,69,.14);
  --r:14px;
  --wrap:1200px;
  --display:'Barlow Condensed',system-ui,sans-serif;
  --body:'Inter',system-ui,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--body);color:var(--ink);background:var(--bg);line-height:1.65;font-size:16px;overflow-x:hidden}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}

.skip-link{position:absolute;left:-999px;top:0;background:var(--amber);color:var(--navy);padding:10px 16px;font-weight:700;z-index:2000}
.skip-link:focus{left:10px;top:10px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--display);font-weight:600;font-size:18px;letter-spacing:.4px;padding:14px 30px;border-radius:10px;cursor:pointer;border:2px solid transparent;transition:transform .18s ease,box-shadow .18s ease,background .18s ease}
.btn:focus-visible{outline:3px solid var(--amber);outline-offset:3px}
.btn-primary{background:var(--amber);color:var(--navy)}
.btn-primary:hover{background:var(--amber-d);transform:translateY(-2px);box-shadow:0 10px 24px rgba(245,166,35,.4)}
.btn-ghost{background:transparent;color:var(--white);border-color:rgba(255,255,255,.6)}
.btn-ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.btn-white{background:var(--white);color:var(--navy)}
.btn-white:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}

.eyebrow{display:inline-block;font-family:var(--display);font-weight:600;font-size:15px;letter-spacing:2px;text-transform:uppercase;color:#a86a12;margin-bottom:12px}

.topbar{background:var(--navy);color:#cdd7e6;font-size:14px}
.topbar-in{display:flex;justify-content:space-between;align-items:center;min-height:44px;gap:16px}
.topbar-info{display:flex;gap:24px;flex-wrap:wrap;align-items:center}
.tb-item{display:inline-flex;align-items:center;gap:7px;color:#cdd7e6;transition:color .15s;min-height:44px}
.tb-item:hover{color:var(--white)}
.tb-item svg{width:16px;height:16px;fill:var(--amber);flex-shrink:0}
.topbar-social{display:flex;gap:6px}
.topbar-social a{width:30px;height:30px;display:grid;place-items:center;border-radius:7px;background:rgba(255,255,255,.08);transition:background .15s}
.topbar-social a:hover{background:var(--amber)}
.topbar-social svg{width:15px;height:15px;fill:var(--white)}

.header{position:sticky;top:0;z-index:1000;background:var(--white);box-shadow:0 2px 14px rgba(11,37,69,.06);transition:box-shadow .2s}
.header.scrolled{box-shadow:0 6px 22px rgba(11,37,69,.12)}
.header-in{display:flex;align-items:center;justify-content:space-between;min-height:76px;gap:20px}
.logo{display:flex;align-items:center;gap:12px}
.logo-mark{width:46px;height:46px;flex-shrink:0;display:grid;place-items:center;background:linear-gradient(135deg,var(--steel),var(--navy));color:var(--amber);font-family:var(--display);font-weight:700;font-size:28px;border-radius:11px}
.logo-text{font-family:var(--display);font-weight:700;font-size:24px;line-height:1;color:var(--navy);letter-spacing:.5px}
.logo-text em{display:block;font-style:normal;font-family:var(--body);font-weight:500;font-size:12px;letter-spacing:.5px;color:var(--muted);margin-top:3px}

.nav{display:flex;align-items:center;gap:6px}
.nav a{font-family:var(--display);font-weight:600;font-size:18px;color:var(--ink);padding:9px 14px;border-radius:8px;transition:color .15s,background .15s}
.nav a:hover,.nav a.active{color:var(--steel);background:var(--bg-soft)}
.nav a:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.nav-cta{background:var(--navy)!important;color:var(--white)!important;padding:11px 22px!important;margin-left:8px}
.nav-cta:hover{background:var(--steel)!important}

.burger{display:none;flex-direction:column;gap:5px;width:44px;height:44px;background:none;border:none;cursor:pointer;padding:10px}
.burger span{height:3px;width:100%;background:var(--navy);border-radius:3px;transition:transform .25s,opacity .25s}
.burger.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

.hero{position:relative;color:var(--white);overflow:hidden;background:var(--navy)}
.hero-bg{position:absolute;inset:0;background:
  linear-gradient(115deg,rgba(11,37,69,.96) 0%,rgba(19,64,116,.9) 55%,rgba(19,49,92,.82) 100%),
  url('https://gokermuhendislik.com.tr/wp-content/uploads/2025/09/Rh1dzRfS6S6HMdKRyd8FQ.webp') center/cover no-repeat}
.hero-bg::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,rgba(255,255,255,.03) 0 1px,transparent 1px 60px)}
.hero-in{position:relative;padding:96px 20px 104px}
.hero-content{max-width:720px}
.hero h1{font-family:var(--display);font-weight:700;font-size:clamp(40px,6vw,72px);line-height:1.02;letter-spacing:.5px;margin-bottom:22px}
.hero h1 strong{color:var(--amber)}
.hero p{font-size:clamp(16px,2vw,19px);color:#d6e0ee;max-width:600px;margin-bottom:34px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:52px}
.hero-stats{display:flex;gap:40px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.18);padding-top:28px}
.hero-stats div{display:flex;flex-direction:column}
.hero-stats b{font-family:var(--display);font-weight:700;font-size:38px;color:var(--amber);line-height:1}
.hero-stats span{font-size:14px;color:#c4d0e0;margin-top:4px;letter-spacing:.3px}

.sec-head{text-align:center;max-width:680px;margin:0 auto 52px}
.sec-head h2{font-family:var(--display);font-weight:700;font-size:clamp(32px,4.5vw,48px);color:var(--navy);line-height:1.05;letter-spacing:.3px}
.sec-head p{color:var(--muted);margin-top:14px;font-size:17px}

.services{padding:90px 0;background:var(--bg-soft)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:26px}
.card{background:var(--white);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);transition:transform .22s ease,box-shadow .22s ease}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.card-img{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--navy-2)}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-img img{transform:scale(1.06)}
.card-img::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(11,37,69,.35),transparent 55%)}
.card-body{padding:24px 22px 26px}
.card-body h3{font-family:var(--display);font-weight:700;font-size:23px;color:var(--navy);line-height:1.15;margin-bottom:10px}
.card-body p{color:var(--muted);font-size:15px}

.cta-band{background:linear-gradient(120deg,var(--steel),var(--navy));color:var(--white)}
.cta-band-in{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:52px 20px;flex-wrap:wrap}
.cta-band h2{font-family:var(--display);font-weight:700;font-size:clamp(26px,3.5vw,38px);line-height:1.1}
.cta-band p{color:#d6e0ee;margin-top:8px;font-size:17px}

.about{padding:90px 0}
.about-in{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:center}
.about-img img{border-radius:var(--r);box-shadow:var(--shadow-lg);width:100%;object-fit:cover;aspect-ratio:4/3}
.about-text h2{font-family:var(--display);font-weight:700;font-size:clamp(30px,4vw,44px);color:var(--navy);line-height:1.08;margin-bottom:20px}
.about-text p{color:var(--muted);margin-bottom:16px}
.mv{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:28px}
.mv-item{background:var(--bg-soft);border-radius:12px;padding:22px;border-left:4px solid var(--amber)}
.mv-item h3{font-family:var(--display);font-weight:700;font-size:22px;color:var(--navy);margin-bottom:8px}
.mv-item p{font-size:14px;color:var(--muted);margin:0}

.process{padding:90px 0;background:var(--bg-soft)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;counter-reset:s}
.steps li{position:relative;background:var(--white);border-radius:var(--r);padding:38px 28px 30px;box-shadow:var(--shadow);border:1px solid var(--line)}
.step-no{font-family:var(--display);font-weight:700;font-size:56px;color:var(--amber);line-height:1;display:block;margin-bottom:14px;opacity:.9}
.steps h3{font-family:var(--display);font-weight:700;font-size:24px;color:var(--navy);margin-bottom:10px}
.steps p{color:var(--muted);font-size:15px}

.values{padding:90px 0}
.values-in{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center}
.values-text h2{font-family:var(--display);font-weight:700;font-size:clamp(30px,4vw,44px);color:var(--navy);line-height:1.08;margin-bottom:18px}
.values-text p{color:var(--muted);margin-bottom:26px}
.value-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.value-list li{position:relative;padding-left:34px;font-family:var(--display);font-weight:600;font-size:20px;color:var(--navy)}
.value-list li::before{content:"";position:absolute;left:0;top:2px;width:22px;height:22px;border-radius:6px;background:var(--amber);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%230b2545'%3E%3Cpath d='M9 16.2l-3.5-3.5L4 14.2 9 19.2 20 8.2l-1.5-1.5z'/%3E%3C/svg%3E");background-size:16px;background-repeat:no-repeat;background-position:center}
.values-img img{border-radius:var(--r);box-shadow:var(--shadow-lg);width:100%;object-fit:cover;aspect-ratio:4/3}

.contact{padding:90px 0;background:var(--bg-soft)}
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:36px}
.contact-cards{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-content:start}
.ct-card{background:var(--white);border-radius:12px;padding:26px 22px;box-shadow:var(--shadow);border:1px solid var(--line);display:flex;flex-direction:column;gap:6px;transition:transform .18s,box-shadow .18s}
.ct-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.ct-card svg{width:34px;height:34px;fill:var(--steel);margin-bottom:6px}
.ct-card b{font-family:var(--display);font-weight:700;font-size:20px;color:var(--navy)}
.ct-card span{font-size:14px;color:var(--muted);word-break:break-word}
.ct-wa svg{fill:#25d366}
.contact-map{border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-lg);min-height:400px}
.contact-map iframe{width:100%;height:100%;min-height:400px;display:block}

.footer{background:var(--navy);color:#c4d0e0}
.footer-in{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding:64px 20px 46px}
.logo-foot .logo-text{color:var(--white)}
.logo-foot .logo-text em{color:#9fb0c6}
.foot-brand p{margin-top:18px;font-size:14px;color:#9fb0c6;max-width:320px}
.foot-col h3{font-family:var(--display);font-weight:700;font-size:20px;color:var(--white);margin-bottom:18px;letter-spacing:.4px}
.foot-col ul li{margin-bottom:11px}
.foot-col ul li a,.foot-contact li{font-size:14px;color:#9fb0c6;transition:color .15s}
.foot-col ul li a:hover{color:var(--amber)}
.foot-contact li{margin-bottom:11px}
.foot-bottom{background:#081a30;padding:18px 0}
.foot-bottom-in{text-align:center}
.foot-bottom p{font-size:13px;color:#7e91aa}

.wa-float{position:fixed;right:20px;bottom:20px;z-index:900;width:58px;height:58px;border-radius:50%;background:#25d366;display:grid;place-items:center;box-shadow:0 8px 24px rgba(37,211,102,.45);transition:transform .2s}
.wa-float:hover{transform:scale(1.08)}
.wa-float svg{width:32px;height:32px;fill:var(--white)}

@media (max-width:1024px){
  .about-in,.values-in{grid-template-columns:1fr;gap:40px}
  .values-img{order:-1}
  .contact-grid{grid-template-columns:1fr}
  .footer-in{grid-template-columns:1fr 1fr;gap:32px}
}

@media (max-width:860px){
  .tb-hide{display:none}
  .nav{position:fixed;inset:0 0 0 auto;width:min(320px,82vw);flex-direction:column;align-items:stretch;justify-content:flex-start;gap:4px;background:var(--white);padding:90px 22px 30px;box-shadow:-10px 0 40px rgba(11,37,69,.18);transform:translateX(100%);transition:transform .3s ease}
  .nav.open{transform:translateX(0)}
  .nav a{font-size:20px;padding:13px 16px}
  .nav-cta{margin-left:0;margin-top:10px;text-align:center}
  .burger{display:flex}
  .steps{grid-template-columns:1fr}
  .mv{grid-template-columns:1fr}
  .contact-cards{grid-template-columns:1fr 1fr}
}

@media (max-width:560px){
  .topbar-info{gap:14px}
  .topbar-social{display:none}
  .hero-in{padding:68px 20px 76px}
  .hero-actions{gap:10px}
  .hero-actions .btn{flex:1;min-width:140px}
  .hero-stats{gap:26px}
  .hero-stats b{font-size:30px}
  .services,.about,.process,.values,.contact{padding:60px 0}
  .cta-band-in{padding:40px 20px;text-align:center;justify-content:center}
  .value-list{grid-template-columns:1fr}
  .contact-cards{grid-template-columns:1fr}
  .footer-in{grid-template-columns:1fr;gap:28px;padding:48px 20px 36px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

.reveal{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

.nav-drop{position:relative}
.nav-menu{position:absolute;top:calc(100% + 10px);left:0;min-width:280px;background:var(--white);border-radius:12px;box-shadow:var(--shadow-lg);border:1px solid var(--line);padding:8px;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s,transform .2s,visibility .2s;z-index:50}
.nav-drop:hover .nav-menu,.nav-drop:focus-within .nav-menu{opacity:1;visibility:visible;transform:translateY(0)}
.nav-menu a{display:block;font-size:15px;font-family:var(--body);font-weight:500;padding:9px 14px;border-radius:8px;color:var(--ink)}
.nav-menu a:hover{background:var(--bg-soft);color:var(--steel)}

.card-link{display:block;color:inherit;height:100%}
.card-more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-family:var(--display);font-weight:600;font-size:16px;color:var(--steel);letter-spacing:.3px}
.card-more svg{width:18px;height:18px}
.card:hover .card-more{color:var(--amber-d)}

.page-hero{background:linear-gradient(115deg,var(--navy),var(--steel));color:var(--white);padding:66px 0 58px;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,rgba(255,255,255,.03) 0 1px,transparent 1px 60px)}
.page-hero .wrap{position:relative}
.page-hero h1{font-family:var(--display);font-weight:700;font-size:clamp(32px,5vw,52px);line-height:1.05;letter-spacing:.4px}
.page-hero p{color:#d6e0ee;margin-top:12px;max-width:640px;font-size:17px}
.crumbs{font-size:14px;color:#b7c6da;margin-bottom:14px;font-weight:500}
.crumbs a{color:#b7c6da;display:inline-flex;align-items:center;min-height:44px}
.crumbs a:hover{color:var(--amber)}
.crumbs span{margin:0 6px;opacity:.6}

.services-page{padding:80px 0}
.group-head{margin:0 0 30px}
.group-head:not(:first-child){margin-top:64px}
.group-head h2{font-family:var(--display);font-weight:700;font-size:clamp(28px,4vw,40px);color:var(--navy);line-height:1.05}

.service-detail{padding:80px 0}
.service-detail-in{display:grid;grid-template-columns:1fr 340px;gap:44px;align-items:start}
.sd-img{width:100%;border-radius:var(--r);box-shadow:var(--shadow-lg);aspect-ratio:16/9;object-fit:cover;margin-bottom:28px}
.sd-intro{font-size:18px;color:var(--ink);margin-bottom:26px}
.sd-main h2{font-family:var(--display);font-weight:700;font-size:28px;color:var(--navy);margin:0 0 18px}
.sd-main>p{color:var(--muted);margin-top:22px}
.sd-points{display:grid;gap:12px;margin-bottom:8px}
.sd-points li{position:relative;padding:14px 16px 14px 48px;background:var(--bg-soft);border-radius:10px;border-left:4px solid var(--amber);font-weight:500;color:var(--navy)}
.sd-points li::before{content:"";position:absolute;left:14px;top:50%;transform:translateY(-50%);width:22px;height:22px;border-radius:6px;background:var(--amber) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%230b2545'%3E%3Cpath d='M9 16.2l-3.5-3.5L4 14.2 9 19.2 20 8.2l-1.5-1.5z'/%3E%3C/svg%3E") center/15px no-repeat}
.sd-side{position:sticky;top:100px;display:grid;gap:20px}
.sd-box{background:var(--white);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:26px 24px}
.sd-box h3{font-family:var(--display);font-weight:700;font-size:22px;color:var(--navy);margin-bottom:10px}
.sd-box>p{color:var(--muted);font-size:15px;margin-bottom:18px}
.sd-btn{width:100%;margin-bottom:10px}
.sd-wa{color:var(--steel);border-color:var(--steel)}
.sd-wa:hover{background:var(--bg-soft)}
.sd-links ul{display:grid;gap:2px}
.sd-links li a{display:block;padding:11px 0;border-bottom:1px solid var(--line);font-weight:500;color:var(--ink);transition:color .15s,padding .15s}
.sd-links li:last-child a{border-bottom:none}
.sd-links li a:hover{color:var(--steel);padding-left:6px}
.all-link{color:var(--steel)!important;font-family:var(--display);font-weight:600;font-size:17px}

.policy{padding:80px 0}
.policy-in{display:grid;grid-template-columns:1fr 340px;gap:44px;align-items:start}
.policy-main h2{font-family:var(--display);font-weight:700;font-size:clamp(28px,4vw,40px);color:var(--navy);line-height:1.08;margin-bottom:18px}
.policy-main h3{font-family:var(--display);font-weight:700;font-size:24px;color:var(--navy);margin:30px 0 10px}
.policy-main p{color:var(--muted);margin-bottom:16px}
.policy-main .sd-points{margin:22px 0}

.contact-grid-form{grid-template-columns:340px 1fr;margin-bottom:40px}
.contact-form-wrap{background:var(--white);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:34px 32px}
.contact-form-wrap h2{font-family:var(--display);font-weight:700;font-size:28px;color:var(--navy);margin-bottom:22px}
.contact-form .field{margin-bottom:18px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.contact-form label{display:block;font-weight:600;font-size:14px;color:var(--navy);margin-bottom:7px}
.contact-form input,.contact-form textarea{width:100%;font-family:var(--body);font-size:16px;color:var(--ink);padding:13px 15px;border:1.5px solid var(--line);border-radius:10px;background:var(--bg-soft);transition:border-color .15s,background .15s}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--steel);background:var(--white)}
.contact-form textarea{resize:vertical;min-height:120px}
.contact-form .btn{width:100%;margin-top:4px}
.hp-field{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.form-alert{padding:14px 18px;border-radius:10px;font-weight:500;margin-bottom:20px}
.form-ok{background:#e7f6ec;color:#1c7a3f;border:1px solid #b9e4c8}
.form-err{background:#fdecec;color:#b3261e;border:1px solid #f4c4c1}
.contact-map-full{min-height:420px}
.contact-map-full iframe{width:100%;height:420px;display:block}

@media (max-width:1024px){
  .service-detail-in,.policy-in{grid-template-columns:1fr}
  .sd-side{position:static}
  .contact-grid-form{grid-template-columns:1fr}
}
@media (max-width:860px){
  .nav-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;background:transparent;padding:0 0 0 14px;min-width:0}
  .nav-menu a{padding:8px 10px;font-size:15px}
}
@media (max-width:560px){
  .field-row{grid-template-columns:1fr}
  .contact-form-wrap{padding:26px 20px}
  .service-detail,.services-page,.policy{padding:52px 0}
}