/* Aksoy İnşaat ve Mühendislik - Ön yüz teması
   Renkler logodan: antrasit + altın */
:root{
  --gold:#b08d45; --gold-d:#8a6a2a; --gold-l:#d9c08a;
  --ink:#25282a; --ink-2:#171a1c; --steel:#5b6063; --mist:#f4f2ec; --line:#e5e1d6; --paper:#fff;
  --fh:'Rajdhani','Segoe UI',Arial,sans-serif; --fb:'Source Sans 3','Segoe UI',Arial,sans-serif;
  --cut:18px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--fb);font-size:17px;line-height:1.7;color:#3b3f42;background:var(--paper);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px}
.container{width:min(1180px,92%);margin-inline:auto}
h1,h2,h3,h4{font-family:var(--fh);color:var(--ink);line-height:1.15;font-weight:700}
h1{font-size:clamp(2.6rem,6vw,4.6rem);letter-spacing:.5px}
h2{font-size:clamp(1.9rem,3.6vw,2.7rem)}
h3{font-size:1.45rem}
p+p{margin-top:1em}
.section{padding:84px 0}
.section.tint{background:var(--mist)}
.section-head{max-width:720px;margin-bottom:46px}
.section-head p{color:var(--steel);margin-top:12px}
.rule{display:block;width:64px;height:4px;background:var(--gold);margin-top:16px;clip-path:polygon(0 0,100% 0,calc(100% - 6px) 100%,0 100%)}

/* Butonlar */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--fh);font-weight:700;font-size:1.1rem;letter-spacing:.3px;padding:13px 30px;border:2px solid var(--gold);background:var(--gold);color:#fff;cursor:pointer;transition:background .2s,color .2s,border-color .2s;clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,12px 100%,0 calc(100% - 12px))}
.btn:hover{background:var(--gold-d);border-color:var(--gold-d)}
.btn.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn.ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn.dark{background:var(--ink);border-color:var(--ink)}
.btn.dark:hover{background:var(--gold);border-color:var(--gold)}

/* Üst bilgi çubuğu */
.topbar{background:var(--ink-2);color:#c9ccce;font-size:.92rem}
.topbar .container{display:flex;justify-content:space-between;gap:20px;padding:8px 0;flex-wrap:wrap}
.topbar a:hover{color:var(--gold-l)}
.topbar i{color:var(--gold);margin-right:7px}
.topbar .group{display:flex;gap:26px;flex-wrap:wrap}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s}
.site-header.scrolled{box-shadow:0 6px 24px rgba(23,26,28,.1)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;min-height:84px}
.brand img{height:68px;width:auto}
.nav{display:flex;align-items:center;gap:6px}
.nav a{font-family:var(--fh);font-weight:600;font-size:1.15rem;padding:8px 16px;color:var(--ink);position:relative}
.nav a::after{content:"";position:absolute;left:16px;right:16px;bottom:2px;height:3px;background:var(--gold);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.nav a:hover::after,.nav a.active::after{transform:scaleX(1)}
.nav .btn{color:#fff;margin-left:12px;padding:9px 22px;font-size:1.05rem}
.nav .btn::after{display:none}
.menu-toggle{display:none;background:none;border:0;font-size:1.7rem;color:var(--ink);cursor:pointer;padding:8px}

/* Hero */
.hero{position:relative;background:var(--ink-2);color:#fff;overflow:hidden;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;z-index:-2;background:
  linear-gradient(105deg,rgba(23,26,28,.97) 0%,rgba(37,40,42,.92) 55%,rgba(60,50,32,.85) 100%),
  var(--hero-img,none) center/cover}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;opacity:.5;
  background:repeating-linear-gradient(0deg,transparent 0 31px,rgba(255,255,255,.035) 31px 32px)}
.hero .container{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;padding:96px 0 150px}
.hero h1{color:#fff;max-width:11ch}
.hero .lead{font-size:1.2rem;color:#c9ccce;max-width:520px;margin:22px 0 34px}
.hero .actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-art{justify-self:end;width:100%;max-width:430px}
.hero-art svg{width:100%;height:auto}
.hero-arc{position:absolute;left:0;right:0;bottom:-1px;line-height:0;z-index:0}
.hero-arc svg{width:100%;height:90px}

/* Sayaçlar */
.stats{margin-top:-62px;position:relative;z-index:3}
.stats .grid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;box-shadow:0 18px 50px rgba(23,26,28,.14);clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)))}
.stat{padding:30px 24px;border-right:1px solid var(--line);text-align:center}
.stat:last-child{border-right:0}
.stat b{display:block;font-family:var(--fh);font-size:3rem;line-height:1;color:var(--ink)}
.stat b::after{content:"+";color:var(--gold)}
.stat span{color:var(--steel);font-size:.98rem}

/* Hakkımızda önizleme */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.photo{position:relative}
.photo img,.photo .ph{width:100%;aspect-ratio:4/3;object-fit:cover;clip-path:polygon(0 0,calc(100% - 44px) 0,100% 44px,100% 100%,44px 100%,0 calc(100% - 44px))}
.photo::before{content:"";position:absolute;left:-14px;bottom:-14px;width:46%;height:46%;border-left:5px solid var(--gold);border-bottom:5px solid var(--gold)}
.ph{background:repeating-linear-gradient(0deg,#2c3033 0 14px,#25282a 14px 28px);display:grid;place-items:center;color:var(--gold);font-size:3rem}
.about-text p{color:#4a4e51}
.about-text .btn{margin-top:28px}

/* Hizmetler: kart değil, ayraçlı liste */
.services{display:grid;grid-template-columns:1fr 1fr;column-gap:64px}
.service{display:grid;grid-template-columns:62px 1fr;gap:20px;padding:30px 0;border-top:1px solid var(--line)}
.service .ico{width:62px;height:62px;display:grid;place-items:center;background:var(--ink);color:var(--gold-l);font-size:1.5rem;clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,0 100%)}
.service h3{margin-bottom:6px}
.service p{color:var(--steel);font-size:1rem}

/* Projeler */
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:34px}
.filters a{font-family:var(--fh);font-weight:600;font-size:1.1rem;padding:6px 20px;border:2px solid var(--line);color:var(--ink)}
.filters a.on,.filters a:hover{background:var(--ink);border-color:var(--ink);color:#fff}
.projects{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.project{position:relative;display:block;background:var(--ink);overflow:hidden;aspect-ratio:4/5;clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,0 100%)}
.project img,.project .ph{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s}
.project:hover img{transform:scale(1.06)}
.project::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 35%,rgba(23,26,28,.92) 100%)}
.project .info{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:24px;color:#fff}
.project .info h3{color:#fff;font-size:1.5rem}
.project .info small{display:block;color:var(--gold-l);font-size:.95rem;margin-top:2px}
.badge{position:absolute;top:18px;left:0;z-index:2;background:var(--gold);color:#fff;font-family:var(--fh);font-weight:700;padding:3px 16px 3px 18px;font-size:.98rem;clip-path:polygon(0 0,100% 0,calc(100% - 10px) 100%,0 100%)}
.badge.devam{background:#c9772b}.badge.planlanan{background:#5b6063}
.empty{padding:50px;text-align:center;color:var(--steel);background:var(--mist)}

/* Misyon vizyon */
.mv{display:grid;grid-template-columns:1fr 1fr;gap:0;margin-top:56px}
.mv>div{padding:42px;background:var(--ink);color:#cfd2d4}
.mv>div:last-child{background:var(--gold-d);color:#fff6e3}
.mv h3{color:#fff;margin-bottom:10px}

/* CTA */
.cta{background:var(--ink-2);color:#fff;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent 0 31px,rgba(255,255,255,.04) 31px 32px)}
.cta .container{position:relative;display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap;padding:64px 0}
.cta h2{color:#fff;max-width:620px}
.cta p{color:#b9bdc0;margin-top:8px}

/* Sayfa başlığı */
.page-head{background:var(--ink-2);color:#fff;padding:70px 0 64px;position:relative;overflow:hidden}
.page-head::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent 0 31px,rgba(255,255,255,.035) 31px 32px)}
.page-head .container{position:relative;z-index:1}
.page-head h1{color:#fff;font-size:clamp(2.2rem,5vw,3.4rem)}
.crumbs{font-size:.95rem;color:#aeb2b5;margin-top:10px}
.crumbs a:hover{color:var(--gold-l)}

/* Proje detay */
.detail{display:grid;grid-template-columns:1.7fr 1fr;gap:56px}
.facts{background:var(--mist);padding:30px;align-self:start;border-top:5px solid var(--gold)}
.facts dl{display:grid;gap:14px}
.facts dt{font-family:var(--fh);font-weight:700;color:var(--ink);font-size:1.05rem}
.facts dd{color:var(--steel);margin-top:-2px}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:34px}
.gallery a{display:block;aspect-ratio:4/3;overflow:hidden;background:var(--mist)}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.gallery a:hover img{transform:scale(1.07)}
.cover-img{width:100%;max-height:520px;object-fit:cover;margin-bottom:30px}
.lightbox{position:fixed;inset:0;background:rgba(10,12,13,.94);display:none;align-items:center;justify-content:center;z-index:200;padding:30px}
.lightbox.open{display:flex}
.lightbox img{max-width:100%;max-height:100%}
.lightbox button{position:absolute;top:18px;right:24px;background:none;border:0;color:#fff;font-size:2.4rem;cursor:pointer}

/* İletişim */
.contact{display:grid;grid-template-columns:1fr 1.3fr;gap:56px}
.contact-list li{display:grid;grid-template-columns:48px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid var(--line)}
.contact-list .ico{width:48px;height:48px;background:var(--ink);color:var(--gold-l);display:grid;place-items:center}
.contact-list b{font-family:var(--fh);font-size:1.15rem;color:var(--ink);display:block}
.form{display:grid;gap:16px}
.form .two{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form label{font-family:var(--fh);font-weight:700;color:var(--ink);font-size:1.05rem;display:block;margin-bottom:4px}
.form input,.form textarea{width:100%;padding:13px 15px;border:2px solid var(--line);background:#fff;font:inherit;color:var(--ink);transition:border-color .2s}
.form input:focus,.form textarea:focus{border-color:var(--gold);outline:0}
.form textarea{min-height:150px;resize:vertical}
.hp{position:absolute;left:-9999px}
.alert{padding:14px 18px;margin-bottom:22px;border-left:5px solid}
.alert.ok{background:#eef6ec;border-color:#4b8b3b;color:#2d5a22}
.alert.err{background:#fbeeee;border-color:#c0392b;color:#8a2a20}
.map{margin-top:64px;border:0;width:100%;height:380px;filter:grayscale(.4)}

/* Footer */
.site-footer{background:var(--ink-2);color:#a9adb0;font-size:.97rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:50px;padding:64px 0 44px}
.site-footer h4{color:#fff;font-size:1.3rem;margin-bottom:16px}
.site-footer li{padding:4px 0}
.site-footer a:hover{color:var(--gold-l)}
.site-footer i{color:var(--gold);width:22px}
.foot-logo{background:#fff;display:inline-block;padding:8px 14px;margin-bottom:18px}
.foot-logo img{height:54px;width:auto}
.social{display:flex;gap:10px;margin-top:18px}
.social a{width:40px;height:40px;display:grid;place-items:center;border:1px solid #3a3f42;color:#fff}
.social a:hover{background:var(--gold);border-color:var(--gold);color:#fff}
.copy{border-top:1px solid #2b2f32;padding:18px 0;text-align:center;font-size:.9rem}
.wa{position:fixed;right:20px;bottom:20px;width:56px;height:56px;border-radius:50%;background:#25d366;color:#fff;display:grid;place-items:center;font-size:1.9rem;box-shadow:0 8px 22px rgba(0,0,0,.28);z-index:60}

/* Hareket: tek bir yükleme anı */
@keyframes rise{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}
.hero .container>div:first-child>*{animation:rise .8s both}
.hero .container>div:first-child>*:nth-child(2){animation-delay:.12s}
.hero .container>div:first-child>*:nth-child(3){animation-delay:.24s}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Duyarlı */
@media (max-width:960px){
  .hero .container{grid-template-columns:1fr;padding:64px 0 120px}
  .hero-art{display:none}
  .stats .grid{grid-template-columns:1fr 1fr}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .split,.contact,.detail,.mv{grid-template-columns:1fr}
  .services{grid-template-columns:1fr}
  .projects{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .menu-toggle{display:block}
  .nav{position:absolute;left:0;right:0;top:100%;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:10px 4%;border-bottom:1px solid var(--line);display:none}
  .nav.open{display:flex}
  .nav a{padding:14px 4px;border-bottom:1px solid var(--line)}
  .nav a::after{display:none}
  .nav .btn{margin:14px 0 6px;justify-content:center}
}
@media (max-width:620px){
  .section{padding:60px 0}
  .projects,.gallery,.form .two,.footer-grid{grid-template-columns:1fr}
  .topbar .group:last-child{display:none}
  .brand img{height:56px}
}