/* ============================================================
   DEMİRYAPI İNŞAAT — ortak stil dosyası
   Renkleri değiştirmek için aşağıdaki :root değişkenlerini düzenleyin
   ============================================================ */
:root{
  --navy:#0E2A47;        /* ana koyu lacivert */
  --navy-2:#123B63;      /* koyu mavi ton */
  --blue:#1D5FAE;        /* vurgu mavisi */
  --blue-soft:#E8F0FA;   /* açık mavi zemin */
  --ink:#1B2430;         /* metin rengi */
  --muted:#5B6B7E;       /* soluk metin */
  --line:#D8E0EA;        /* ince çizgiler */
  --bg:#FFFFFF;
  --bg-alt:#F4F6F9;
  --radius:10px;
  --max:1160px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,sans-serif;
  color:var(--ink);background:var(--bg);
  line-height:1.65;font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:var(--blue);text-decoration:none}
.container{max-width:var(--max);margin:0 auto;padding:0 24px}

/* -------- tipografi -------- */
h1,h2,h3,.disp{
  font-family:'Barlow Condensed',sans-serif;
  text-transform:uppercase;letter-spacing:.02em;
  color:var(--navy);line-height:1.08;font-weight:700;
}
h1{font-size:clamp(2.6rem,6vw,4.4rem)}
h2{font-size:clamp(1.9rem,4vw,2.8rem)}
h3{font-size:1.35rem;letter-spacing:.04em}
p{color:var(--muted)}
strong{color:var(--ink)}

/* teknik etiket (donatı çapı gibi Ø etiketleri) */
.tag{
  display:inline-flex;align-items:center;gap:8px;
  font-family:'Barlow Condensed',sans-serif;font-weight:600;
  font-size:.95rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--blue);margin-bottom:14px;
}
.tag::before{content:"";width:34px;height:2px;background:var(--blue)}

/* -------- header -------- */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.94);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px;color:var(--navy)}
.logo-mark{
  width:38px;height:38px;border:2.5px solid var(--navy);border-radius:6px;
  display:grid;place-items:center;
  background:
    repeating-linear-gradient(0deg,transparent 0 7px,var(--navy) 7px 9px),
    repeating-linear-gradient(90deg,transparent 0 7px,var(--navy) 7px 9px);
  background-size:100% 100%;
}
.logo b{
  font-family:'Barlow Condensed',sans-serif;font-size:1.45rem;
  letter-spacing:.06em;text-transform:uppercase;line-height:1;
}
.logo small{display:block;font-size:.62rem;letter-spacing:.28em;color:var(--muted);font-weight:600}
nav ul{display:flex;gap:6px;list-style:none}
nav a{
  font-family:'Barlow Condensed',sans-serif;font-weight:600;
  letter-spacing:.1em;text-transform:uppercase;font-size:1rem;
  color:var(--ink);padding:10px 16px;border-radius:8px;
}
nav a:hover{background:var(--blue-soft);color:var(--blue)}
nav a.active{background:var(--navy);color:#fff}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:8px;
  width:44px;height:44px;font-size:1.3rem;color:var(--navy);cursor:pointer}

/* -------- hero -------- */
.hero{
  background:var(--navy);color:#fff;position:relative;overflow:hidden;
}
.hero::before{ /* donatı hasırı (rebar mesh) deseni */
  content:"";position:absolute;inset:0;opacity:.10;
  background:
    repeating-linear-gradient(0deg,transparent 0 46px,#fff 46px 48px),
    repeating-linear-gradient(90deg,transparent 0 46px,#fff 46px 48px);
}
.hero-inner{
  position:relative;display:grid;grid-template-columns:1.1fr .9fr;
  gap:48px;align-items:center;padding:88px 0;
}
.hero h1{color:#fff}
.hero .tag{color:#9CC3F0}
.hero .tag::before{background:#9CC3F0}
.hero p{color:#C6D4E4;font-size:1.08rem;max-width:52ch;margin:20px 0 32px}
.hero-img{
  border-radius:var(--radius);overflow:hidden;
  border:1px solid rgba(255,255,255,.2);
  box-shadow:0 24px 60px rgba(0,0,0,.35);
}
.hero-img img{width:100%;height:420px;object-fit:cover}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:'Barlow Condensed',sans-serif;font-weight:700;
  letter-spacing:.12em;text-transform:uppercase;font-size:1.05rem;
  padding:14px 28px;border-radius:8px;transition:.2s;
}
.btn-primary{background:#fff;color:var(--navy)}
.btn-primary:hover{background:var(--blue-soft)}
.btn-outline{border:2px solid rgba(255,255,255,.5);color:#fff;margin-left:12px}
.btn-outline:hover{border-color:#fff}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--blue)}

/* hero altı sayaç şeridi */
.stats{background:var(--bg-alt);border-bottom:1px solid var(--line)}
.stats .container{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:28px 12px;text-align:center;border-left:1px solid var(--line)}
.stat:first-child{border-left:none}
.stat b{font-family:'Barlow Condensed',sans-serif;font-size:2.2rem;color:var(--navy);display:block;line-height:1}
.stat span{font-size:.85rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}

/* -------- bölümler -------- */
section{padding:84px 0}
.section-alt{background:var(--bg-alt)}
.section-head{max-width:640px;margin-bottom:44px}
.section-head p{margin-top:14px}

/* hizmet kartları */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;transition:.2s;
}
.card:hover{border-color:var(--blue);box-shadow:0 12px 32px rgba(14,42,71,.08);transform:translateY(-3px)}
.card .ico{
  width:52px;height:52px;border-radius:8px;background:var(--blue-soft);
  display:grid;place-items:center;margin-bottom:18px;
  font-family:'Barlow Condensed',sans-serif;font-weight:700;color:var(--blue);
  font-size:1.05rem;letter-spacing:.05em;
}
.card p{font-size:.95rem;margin-top:8px}

/* CTA bandı */
.cta{background:var(--navy);color:#fff;text-align:center;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;opacity:.08;
  background:repeating-linear-gradient(45deg,transparent 0 30px,#fff 30px 32px)}
.cta h2{color:#fff;position:relative}
.cta p{color:#C6D4E4;margin:14px auto 30px;max-width:56ch;position:relative}
.cta .btn{position:relative}

/* -------- galeri / projeler -------- */
.project{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;margin-bottom:44px;
}
.project-head{
  display:grid;grid-template-columns:1fr auto;gap:20px;align-items:start;
  padding:30px 30px 22px;border-bottom:1px solid var(--line);
}
.project-head h3{font-size:1.6rem}
.project-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.meta-chip{
  font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;
  background:var(--blue-soft);color:var(--navy);
  padding:5px 12px;border-radius:999px;font-weight:600;
}
.project-status{
  font-family:'Barlow Condensed',sans-serif;font-weight:700;
  letter-spacing:.1em;text-transform:uppercase;font-size:.95rem;
  padding:8px 16px;border-radius:8px;white-space:nowrap;
}
.status-done{background:#E7F5EC;color:#1B7A3D}
.status-active{background:#FFF4E0;color:#A05A00}
.project-body{padding:22px 30px 30px}
.project-body p{max-width:80ch;margin-bottom:22px;font-size:.98rem}
.thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.thumbs a{border-radius:8px;overflow:hidden;position:relative;display:block}
.thumbs img{width:100%;height:170px;object-fit:cover;transition:.3s}
.thumbs a:hover img{transform:scale(1.06)}
.thumbs a::after{
  content:"⤢";position:absolute;right:8px;bottom:8px;width:28px;height:28px;
  background:rgba(14,42,71,.85);color:#fff;border-radius:6px;
  display:grid;place-items:center;font-size:.9rem;opacity:0;transition:.2s;
}
.thumbs a:hover::after{opacity:1}

/* lightbox */
.lightbox{
  position:fixed;inset:0;background:rgba(10,20,35,.94);z-index:100;
  display:none;align-items:center;justify-content:center;flex-direction:column;gap:16px;
  padding:24px;
}
.lightbox.open{display:flex}
.lightbox img{max-width:92vw;max-height:78vh;border-radius:8px;object-fit:contain}
.lb-caption{color:#C6D4E4;font-size:.95rem}
.lb-btn{
  position:fixed;top:50%;transform:translateY(-50%);
  width:52px;height:52px;border-radius:50%;border:none;cursor:pointer;
  background:rgba(255,255,255,.12);color:#fff;font-size:1.5rem;
}
.lb-btn:hover{background:rgba(255,255,255,.25)}
.lb-prev{left:18px}.lb-next{right:18px}
.lb-close{position:fixed;top:18px;right:18px;transform:none}

/* -------- hakkımızda -------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split img{border-radius:var(--radius);height:440px;width:100%;object-fit:cover;
  border:1px solid var(--line)}
.checks{list-style:none;margin-top:22px}
.checks li{
  padding:10px 0 10px 34px;position:relative;color:var(--ink);
  border-bottom:1px dashed var(--line);font-size:.98rem;
}
.checks li::before{
  content:"✓";position:absolute;left:0;top:9px;width:22px;height:22px;
  background:var(--navy);color:#fff;border-radius:6px;
  display:grid;place-items:center;font-size:.8rem;
}

/* -------- iletişim -------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:40px}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px}
.contact-item{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}
.contact-item:last-child{border-bottom:none}
.contact-item .ico{
  width:46px;height:46px;flex:none;border-radius:8px;background:var(--blue-soft);
  display:grid;place-items:center;font-size:1.2rem;
}
.contact-item b{display:block;font-family:'Barlow Condensed',sans-serif;
  text-transform:uppercase;letter-spacing:.08em;color:var(--navy);font-size:1.05rem}
.contact-item span{color:var(--muted);font-size:.95rem}
form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
label{display:block;font-size:.85rem;font-weight:600;letter-spacing:.05em;
  text-transform:uppercase;color:var(--navy);margin:16px 0 6px}
input,textarea{
  width:100%;padding:13px 15px;border:1px solid var(--line);border-radius:8px;
  font:inherit;background:var(--bg-alt);transition:.2s;
}
input:focus,textarea:focus{outline:2px solid var(--blue);background:#fff;border-color:var(--blue)}
.map{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);margin-top:44px}
.map iframe{width:100%;height:380px;border:0;display:block}

/* -------- footer -------- */
footer{background:var(--navy);color:#B9C8DA;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:40px}
footer h4{font-family:'Barlow Condensed',sans-serif;color:#fff;text-transform:uppercase;
  letter-spacing:.1em;margin-bottom:16px;font-size:1.15rem}
footer a{color:#B9C8DA;display:block;padding:4px 0}
footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.15);padding:18px 0;
  font-size:.85rem;text-align:center;color:#7E93AB}

/* WhatsApp butonu */
.wa-btn{
  position:fixed;right:22px;bottom:22px;z-index:60;
  width:60px;height:60px;border-radius:50%;background:#25D366;
  display:grid;place-items:center;box-shadow:0 10px 28px rgba(0,0,0,.28);
  transition:.2s;
}
.wa-btn:hover{transform:scale(1.08)}
.wa-btn svg{width:32px;height:32px;fill:#fff}

/* -------- responsive -------- */
@media(max-width:960px){
  .hero-inner,.split,.contact-grid{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr 1fr}
  .thumbs{grid-template-columns:1fr 1fr}
  .stats .container{grid-template-columns:1fr 1fr}
  .stat:nth-child(3){border-left:none}
  .hero-img img{height:300px}
  .split img{height:300px}
}
@media(max-width:640px){
  nav ul{
    display:none;position:absolute;top:72px;left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;padding:12px 24px;gap:2px;
  }
  nav ul.open{display:flex}
  .burger{display:block}
  .grid-3{grid-template-columns:1fr}
  .project-head{grid-template-columns:1fr}
  .btn-outline{margin-left:0;margin-top:12px}
  section{padding:56px 0}
  .footer-grid{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}

.logo-img{
  height:156px;
  max-width:300px;   /* genişliği sınırlar, taşmayı önler */
  width:auto;
  object-fit:contain; /* ezilme/yamulmayı önler */
  flex:none;          /* menü sıkıştırınca logonun ezilmesini önler */
}