/* Prestij Demir Çelik — statik site stilleri
   Renkleri değiştirmek için yalnızca :root değişkenlerini düzenleyin. */
:root{
  --steel-900:#0f1720;
  --steel-800:#15202b;
  --steel-700:#1f2d3a;
  --steel-500:#4a5a69;
  --steel-300:#a9b4be;
  --steel-100:#eef1f4;
  --bg:#ffffff;
  --text:#22303c;
  --muted:#5d6b78;
  --accent:#0088cc;        /* logo mavisi */
  --accent-dark:#006ea6;
  --wa:#25d366;
  --radius:10px;
  --shadow:0 10px 30px rgba(15,23,32,.10);
  --container:1200px;
  --head:"Barlow Condensed","Arial Narrow",Arial,sans-serif;
  --body:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--body);font-size:16px;line-height:1.7;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--head);line-height:1.15;color:var(--steel-900);margin:0 0 .6em;letter-spacing:.2px}
h1{font-size:clamp(2.2rem,5vw,3.6rem)}
h2{font-size:clamp(1.8rem,3.4vw,2.6rem)}
h3{font-size:1.4rem}
p{margin:0 0 1em}
svg{width:1em;height:1em;fill:currentColor;flex:none}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:90px 0}
.section.alt{background:var(--steel-100)}
.eyebrow{display:inline-block;font-family:var(--head);font-weight:700;text-transform:uppercase;letter-spacing:2px;font-size:.95rem;color:var(--accent);margin-bottom:10px;position:relative;padding-left:38px}
.eyebrow::before{content:"";position:absolute;left:0;top:50%;width:28px;height:3px;background:var(--accent)}
.eyebrow.light{color:color-mix(in srgb,var(--accent) 55%,#fff)}
.sec-head{max-width:760px;margin-bottom:50px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head.center .eyebrow{padding:0 38px}
.sec-head.center .eyebrow::after{content:"";position:absolute;right:0;top:50%;width:28px;height:3px;background:var(--accent)}

/* butonlar */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 28px;border-radius:6px;font-weight:600;font-size:.98rem;border:2px solid transparent;transition:.2s;cursor:pointer;font-family:var(--body);line-height:1.2}
.btn svg{width:18px;height:18px}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dark)}
.btn-dark{background:var(--steel-800);color:#fff}
.btn-dark:hover{background:var(--steel-900)}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--steel-900)}
.btn-wa{background:var(--wa);color:#fff}
.btn-wa:hover{filter:brightness(.93)}
.btn.block{display:flex;width:100%;margin-top:10px}

/* üst bar */
.topbar{background:var(--steel-900);color:var(--steel-300);font-size:.86rem}
.topbar-in{display:flex;justify-content:space-between;align-items:center;min-height:42px;gap:12px}
.topbar-info{display:flex;gap:22px;flex-wrap:wrap}
.topbar-info a,.topbar-info>span{display:inline-flex;align-items:center;gap:7px}
.topbar-info a:hover{color:#fff}
.topbar svg{color:var(--accent)}
.lang{font-weight:700;color:#fff;border:1px solid var(--steel-500);padding:3px 12px;border-radius:4px;letter-spacing:1px}
.lang:hover{background:var(--accent);border-color:var(--accent)}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:#fff;box-shadow:0 2px 14px rgba(0,0,0,.06)}
.header-in{display:flex;align-items:center;justify-content:space-between;min-height:84px;gap:20px}
.logo img{max-height:34px;width:auto}
.main-nav{display:flex;align-items:center;gap:28px}
.main-nav>ul{list-style:none;margin:0;padding:0;display:flex;gap:4px}
.main-nav>ul>li{position:relative}
.main-nav>ul>li>a{display:block;padding:12px 16px;font-weight:600;color:var(--steel-700);border-radius:6px}
.main-nav>ul>li>a:hover,.main-nav>ul>li>a.active{color:var(--accent)}
.sub{list-style:none;margin:0;padding:10px 0;position:absolute;top:100%;left:0;min-width:270px;background:#fff;box-shadow:var(--shadow);border-radius:8px;border-top:3px solid var(--accent);opacity:0;visibility:hidden;transform:translateY(8px);transition:.2s}
.has-sub:hover .sub,.has-sub:focus-within .sub{opacity:1;visibility:visible;transform:none}
.sub a{display:block;padding:10px 22px;font-size:.95rem;color:var(--steel-700)}
.sub a:hover,.sub a.active{color:var(--accent);background:var(--steel-100)}
.sub-toggle{display:none}
.nav-toggle{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer;padding:10px}
.nav-toggle span{display:block;height:2px;background:var(--steel-800);margin:5px 0;transition:.25s}

/* hero */
.hero{position:relative;color:#fff;background:linear-gradient(100deg,rgba(15,23,32,.94) 0%,rgba(15,23,32,.78) 50%,rgba(15,23,32,.45) 100%),var(--bg) center/cover no-repeat,var(--steel-800);padding:130px 0 150px}
.hero.has-video{overflow:hidden;isolation:isolate}
.hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.hero.has-video::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(100deg,rgba(15,23,32,.92) 0%,rgba(15,23,32,.72) 50%,rgba(15,23,32,.35) 100%)}
.hero-in{position:relative}
@media (prefers-reduced-motion:reduce){.hero-video{display:none}}
.hero h1{color:#fff;max-width:760px}
.hero h1 span{color:var(--accent)}
.hero .lead{font-size:1.15rem;max-width:620px;color:#d6dde3}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}

/* istatistik bandı */
.stats{margin-top:-60px;position:relative;z-index:2}
.stats-in{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.stat{padding:30px 20px;text-align:center;border-right:1px solid var(--steel-100)}
.stat:last-child{border-right:0}
.stat strong{display:block;font-family:var(--head);font-size:2.6rem;color:var(--accent);line-height:1}
.stat span{color:var(--muted);font-weight:500;font-size:.95rem}

/* iki kolon */
.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.split-img{position:relative}
.split-img img{border-radius:var(--radius);box-shadow:var(--shadow);aspect-ratio:3/2;object-fit:cover;width:100%;background:var(--steel-100)}
.badge-years{position:absolute;right:-18px;bottom:-24px;background:var(--accent);color:#fff;padding:20px 26px;border-radius:var(--radius);box-shadow:var(--shadow);text-align:center}
.badge-years strong{display:block;font-family:var(--head);font-size:2.6rem;line-height:1}
.badge-years span{font-size:.85rem;font-weight:600}
.split-txt h3{margin-top:1.2em}
.split-txt .btn{margin-top:10px}
.closing{font-weight:600;color:var(--steel-800);border-left:3px solid var(--accent);padding-left:16px}

/* hizmet kartları */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.svc-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:.25s}
.svc-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(15,23,32,.16)}
.svc-img{position:relative;aspect-ratio:3/2;overflow:hidden;background:var(--steel-700)}
.svc-img img{width:100%;height:100%;object-fit:cover;transition:.5s}
.svc-card:hover .svc-img img{transform:scale(1.06)}
.svc-num{position:absolute;left:0;bottom:0;background:var(--accent);color:#fff;font-family:var(--head);font-weight:700;font-size:1.4rem;padding:6px 16px}
.svc-body{padding:26px 26px 30px;display:flex;flex-direction:column;flex:1}
.svc-body p{color:var(--muted);flex:1}
.more{display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-weight:600}
.more svg{transition:.2s}
.svc-card:hover .more svg{transform:translateX(4px)}
.intro-lead{font-size:1.1rem;color:var(--muted);max-width:820px;margin-bottom:40px}

/* neden biz */
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.why-item{padding:32px 26px;border:1px solid var(--steel-100);border-radius:var(--radius);transition:.25s;background:#fff}
.why-item:hover{border-color:var(--accent);box-shadow:var(--shadow)}
.why-ic{width:58px;height:58px;border-radius:12px;background:color-mix(in srgb,var(--accent) 12%,transparent);color:var(--accent);display:grid;place-items:center;margin-bottom:18px}
.why-ic svg{width:28px;height:28px}
.why-item h3{font-size:1.3rem}
.why-item p{color:var(--muted);font-size:.95rem;margin:0}

/* cta */
.cta{background:linear-gradient(90deg,var(--steel-900),var(--steel-700));color:#fff;padding:60px 0;position:relative;overflow:hidden}
.cta::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(135deg,transparent 0 22px,rgba(255,255,255,.03) 22px 44px);pointer-events:none}
.cta-in{display:flex;justify-content:space-between;align-items:center;gap:30px;position:relative;z-index:1}
.cta h2{color:#fff;margin-bottom:.3em}
.cta p{color:var(--steel-300);margin:0}
.cta-btns{display:flex;gap:12px;flex-wrap:wrap;flex:none}

/* iş ortakları */
.partners{padding:80px 0}
.marquee{overflow:hidden;mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.partner-track{list-style:none;margin:0;padding:0;display:flex;gap:26px;width:max-content;animation:scroll 70s linear infinite}
.marquee:hover .partner-track{animation-play-state:paused}
.partner-track li{flex:none;width:180px;height:100px;background:#fff;border:1px solid var(--steel-100);border-radius:8px;display:grid;place-items:center;padding:14px}
.partner-track img{max-height:70px;width:auto;object-fit:contain;transition:transform .25s}
.partner-track li{transition:border-color .25s,box-shadow .25s}
.partner-track li:hover{border-color:var(--accent);box-shadow:var(--shadow)}
.partner-track li:hover img{transform:scale(1.06)}
@keyframes scroll{to{transform:translateX(calc(-50% - 13px))}}
@media (prefers-reduced-motion:reduce){.partner-track{animation:none;flex-wrap:wrap;width:auto;justify-content:center}.partner-track li[aria-hidden]{display:none}}

/* sayfa başlığı */
.page-hero{background:linear-gradient(90deg,rgba(15,23,32,.92),rgba(15,23,32,.7)),var(--bg) center/cover no-repeat,var(--steel-800);color:#fff;padding:80px 0 70px}
.page-hero h1{color:#fff;margin:0}
.crumbs{font-size:.9rem;color:var(--steel-300);margin-bottom:12px;display:flex;flex-wrap:wrap;gap:8px}
.crumbs a:hover{color:#fff}
.crumbs [aria-current]{color:var(--accent)}

/* hakkımızda alanlar */
.areas{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.area{display:flex;gap:16px;background:#fff;padding:28px;border-radius:var(--radius);box-shadow:var(--shadow);transition:.25s;border-bottom:3px solid transparent}
.area:hover{border-bottom-color:var(--accent);transform:translateY(-4px)}
.area-ic{width:44px;height:44px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;flex:none}
.area-ic svg{width:22px;height:22px}
.area p{color:var(--muted);margin:0;font-size:.95rem}

/* hizmet detay */
.detail{display:grid;grid-template-columns:1fr 340px;gap:50px;align-items:start}
.detail-img{border-radius:var(--radius);margin-bottom:34px;aspect-ratio:3/2;object-fit:cover;width:100%;background:var(--steel-100)}
.feature-list{list-style:none;padding:0;margin:0 0 30px;display:grid;gap:18px}
.feature-list li{display:flex;gap:16px;padding:22px;background:var(--steel-100);border-radius:var(--radius)}
.li-ic{width:36px;height:36px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;flex:none}
.li-ic svg{width:18px;height:18px}
.feature-list strong{font-family:var(--head);font-size:1.25rem;color:var(--steel-900);display:block;margin-bottom:2px}
.feature-list p{margin:0;color:var(--muted)}
blockquote{margin:0;padding:26px 30px;background:var(--steel-800);color:#fff;border-left:5px solid var(--accent);border-radius:0 var(--radius) var(--radius) 0;font-family:var(--head);font-size:1.45rem;line-height:1.35}
.detail-side{position:sticky;top:110px;display:grid;gap:24px}
.side-box{background:var(--steel-100);border-radius:var(--radius);padding:28px}
.side-box.dark{background:var(--steel-800);color:var(--steel-300)}
.side-box.dark h3{color:#fff}
.side-links{list-style:none;margin:0;padding:0}
.side-links a{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;background:#fff;border-radius:6px;margin-bottom:8px;font-weight:600;transition:.2s}
.side-links a:hover{background:var(--accent);color:#fff}

/* iletişim */
.contact-grid{display:grid;grid-template-columns:1fr 1.4fr;gap:50px}
.ci-card{display:flex;gap:16px;align-items:flex-start;padding:22px;border-radius:var(--radius);background:var(--steel-100);margin-bottom:14px;transition:.2s}
a.ci-card:hover{background:var(--steel-800);color:#fff}
a.ci-card:hover p{color:#fff}
.ci-card>svg{width:44px;height:44px;padding:11px;border-radius:50%;background:var(--accent);color:#fff}
.ci-card.wa>svg{background:var(--wa)}
.ci-card span{font-weight:700;font-family:var(--head);font-size:1.15rem;text-transform:uppercase;letter-spacing:.5px}
.ci-card p{margin:0;color:var(--muted)}
.contact-form{background:#fff;padding:36px;border-radius:var(--radius);box-shadow:var(--shadow)}
.contact-form form{display:grid;gap:16px}
.f-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact-form label{display:grid;gap:6px;font-weight:600;font-size:.92rem;color:var(--steel-700)}
.contact-form input,.contact-form textarea{font:inherit;padding:13px 14px;border:1px solid #d4dbe1;border-radius:6px;background:#fbfcfd;width:100%}
.contact-form input:focus,.contact-form textarea:focus{outline:2px solid var(--accent);outline-offset:0;border-color:transparent}
.contact-form .chk{display:flex;gap:10px;align-items:center;font-weight:500}
.contact-form .chk input{width:auto}
.contact-form button{justify-self:start}
.hp{position:absolute;left:-9999px}
.form-msg{padding:14px 18px;border-radius:6px;margin-bottom:16px;font-weight:600}
.form-msg.ok{background:#e6f6ec;color:#1e7a3c}
.form-msg.err{background:#fde9e5;color:#b3361a}
.map iframe{display:block;width:100%;height:440px;border:0;filter:grayscale(.3)}

/* footer */
.site-footer{background:var(--steel-900);color:var(--steel-300);padding-top:70px;font-size:.95rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1.4fr;gap:40px;padding-bottom:50px}
.footer-logo{max-height:54px;width:auto;margin-bottom:18px;background:#fff;padding:8px 12px;border-radius:6px}
.site-footer h3{color:#fff;font-size:1.25rem;margin-bottom:18px}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.site-footer a:hover{color:var(--accent)}
.f-contact li{display:flex;gap:10px;align-items:flex-start}
.f-contact svg{color:var(--accent);margin-top:5px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;font-size:.88rem}
.fb-in{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* whatsapp sabit */
.wa-float{position:fixed;right:22px;bottom:22px;z-index:60;width:58px;height:58px;border-radius:50%;background:var(--wa);color:#fff;display:grid;place-items:center;box-shadow:0 8px 24px rgba(37,211,102,.45);transition:.2s}
.wa-float svg{width:32px;height:32px}
.wa-float:hover{transform:scale(1.08)}

/* responsive */
@media (max-width:1080px){
  .main-nav .nav-cta{display:none}
  .why-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:920px){
  .nav-toggle{display:block}
  .main-nav{position:fixed;inset:126px 0 auto 0;background:#fff;flex-direction:column;align-items:stretch;padding:10px 20px 24px;box-shadow:0 20px 30px rgba(0,0,0,.12);max-height:calc(100vh - 126px);overflow:auto;transform:translateY(-12px);opacity:0;visibility:hidden;transition:.25s}
  body.nav-open .main-nav{transform:none;opacity:1;visibility:visible}
  body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  body.nav-open .nav-toggle span:nth-child(2){opacity:0}
  body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .main-nav>ul{flex-direction:column}
  .main-nav>ul>li{border-bottom:1px solid var(--steel-100)}
  .main-nav>ul>li>a{padding:14px 4px}
  .main-nav .nav-cta{display:flex;margin-top:14px}
  .has-sub{display:flex;flex-wrap:wrap;align-items:center}
  .has-sub>a{flex:1}
  .sub-toggle{display:grid;place-items:center;width:44px;height:44px;background:none;border:0;cursor:pointer}
  .sub-toggle span{width:10px;height:10px;border-right:2px solid var(--steel-700);border-bottom:2px solid var(--steel-700);transform:rotate(45deg);transition:.2s}
  .has-sub.open .sub-toggle span{transform:rotate(-135deg)}
  .sub{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:0 0 10px 10px;width:100%;display:none;min-width:0}
  .has-sub.open .sub{display:block}
  .split,.detail,.contact-grid{grid-template-columns:1fr}
  .split-img{max-width:640px}
  .badge-years{right:12px}
  .detail-side{position:static}
  .svc-grid,.areas{grid-template-columns:1fr 1fr}
  .stats-in{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(-n+2){border-bottom:1px solid var(--steel-100)}
  .cta-in{flex-direction:column;align-items:flex-start}
}
@media (max-width:640px){
  .section{padding:64px 0}
  .container{padding:0 16px}
  .topbar-info .hide-sm,.topbar-info a[href^="mailto"]{display:none}
  .header-in{min-height:72px}
  .logo img{max-height:34px}
  .main-nav{inset:114px 0 auto 0;max-height:calc(100vh - 114px)}
  .hero{padding:90px 0 120px}
  .svc-grid,.areas,.why-grid,.f-row,.footer-grid{grid-template-columns:1fr}
  .contact-form{padding:24px}
  .partner-track li{width:140px;height:84px}
  blockquote{font-size:1.2rem;padding:20px}
  .map iframe{height:320px}
}