/* ENART Proje — site.css. Tema: kurumsal kimlik PDF (Ekim 2026): antrasit, altın-bej, açık gri, kırık beyaz; ince çizgi logo. */
:root{
  --antrasit:#423e3f; --koyu:#231f20; --metin:#3a3637; --soluk:#716c6d;
  --altin:#aa8d4c; --altin-acik:#c9b27a; --altin-koyu:#8a7138;
  --kirik:#f7f5f0; --gri:#d7d3cd; --gri-acik:#ebe8e2;
  --beyaz:#fff; --cizgi:rgba(66,62,63,.12);
  --govde:"Jost",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --genislik:1140px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--govde);color:var(--metin);background:var(--beyaz);line-height:1.7;font-size:17px;font-weight:400}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--altin-koyu)}
h1,h2,h3,h4{font-weight:500;line-height:1.15;margin:0 0 .5em;color:var(--antrasit);letter-spacing:.01em}
h1{font-size:clamp(2.1rem,5vw,3.6rem);font-weight:300}
h2{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:400}
h3{font-size:1.25rem;font-weight:500}
p{margin:0 0 1em}
.kap{width:min(var(--genislik),100% - 2.5rem);margin-inline:auto}
.gizli-erisim{position:absolute;left:-9999px}
.slogan{font-style:italic;color:var(--altin);font-weight:400}

/* Üst çubuk */
.ust{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:saturate(1.3) blur(8px);border-bottom:1px solid var(--cizgi)}
.ust .kap{display:flex;align-items:center;justify-content:space-between;min-height:84px;gap:1rem}
.logo img{height:52px;width:auto}
.menu{display:flex;gap:2rem;list-style:none;margin:0;padding:0}
.menu a{text-decoration:none;color:var(--antrasit);font-weight:500;font-size:.92rem;letter-spacing:.1em;text-transform:uppercase;padding:.4rem 0;border-bottom:1px solid transparent}
.menu a:hover,.menu a[aria-current=page]{border-color:var(--altin);color:var(--altin-koyu)}
.menu-dugme{display:none;background:none;border:0;padding:.5rem;cursor:pointer}
.menu-dugme span{display:block;width:26px;height:2px;background:var(--antrasit);margin:6px 0;transition:.2s}
@media (max-width:820px){
  .menu-dugme{display:block}
  .menu{position:absolute;left:0;right:0;top:100%;flex-direction:column;gap:0;background:var(--beyaz);border-bottom:1px solid var(--cizgi);padding:.5rem 1.25rem 1rem;display:none}
  .menu.acik{display:flex}
  .menu a{display:block;padding:.85rem 0;border-bottom:1px solid var(--cizgi);font-size:1rem}
  .menu a[aria-current=page]{border-bottom-color:var(--altin)}
}

/* Hero: fotoğraf + antrasit örtü, sağda altın diyagonal şerit (ECK E10 düzeni), altta altın bant (PDF dosya kapağı) */
.hero{position:relative;color:var(--beyaz);background:var(--antrasit);overflow:hidden;isolation:isolate;border-bottom:12px solid var(--altin)}
.hero picture img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(100deg,rgba(35,31,32,.86) 0%,rgba(35,31,32,.62) 45%,rgba(35,31,32,.2) 100%)}
.hero::after{content:"";position:absolute;right:-10%;top:0;width:34%;height:100%;z-index:-1;background:linear-gradient(115deg,transparent 48%,var(--altin) 48%,var(--altin-acik) 52%,transparent 52%);opacity:.9}
.hero .kap{padding:clamp(4rem,10vw,8rem) 0}
.hero .ust-yazi{display:block;color:var(--altin-acik);font-weight:500;letter-spacing:.22em;text-transform:uppercase;font-size:.78rem;margin-bottom:1rem}
.hero h1{color:var(--beyaz);max-width:18ch}
.hero .slogan{color:var(--altin-acik);font-size:clamp(1.3rem,2.6vw,1.9rem);margin:0 0 .6rem}
.hero p{max-width:52ch;font-size:1.05rem;color:#e9e6e1}
@media (max-width:700px){.hero::after{display:none}}
.hero--ic{display:flex;align-items:center;min-height:clamp(240px,30vw,360px)}
.hero--ic .kap{padding:2.5rem 0}
.hero--ic h1{margin-bottom:.2em}
.hero--ic p{margin:0}
.dugme{display:inline-block;background:var(--altin);color:var(--beyaz);font-weight:500;text-decoration:none;padding:.85rem 1.7rem;letter-spacing:.1em;text-transform:uppercase;font-size:.85rem;transition:.2s;border:1px solid var(--altin)}
.dugme:hover{background:var(--antrasit);border-color:var(--antrasit);color:var(--beyaz)}
.dugme--cerceve{background:transparent;color:var(--beyaz);border-color:var(--beyaz)}
.dugme--cerceve:hover{background:var(--altin);border-color:var(--altin);color:var(--beyaz)}
.dugmeler{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.6rem}

/* Bölümler */
.bolum{padding:clamp(3rem,7vw,5.5rem) 0}
.bolum--kirik{background:var(--kirik)}
.bolum--koyu{background:var(--antrasit);color:#d9d5d0}
.bolum--koyu h2,.bolum--koyu h3{color:var(--beyaz)}
.bolum--koyu .slogan{color:var(--altin-acik)}
.baslik{max-width:62ch;margin-bottom:2.2rem}
.baslik .ust-yazi{display:block;color:var(--altin-koyu);font-weight:500;letter-spacing:.2em;text-transform:uppercase;font-size:.75rem;margin-bottom:.5rem}
.baslik h2::after{content:"";display:block;width:56px;height:2px;background:var(--altin);margin-top:.7rem}
.baslik--orta{margin-inline:auto;text-align:center}
.baslik--orta h2::after{margin-inline:auto}
.izgara{display:grid;gap:1.4rem}
.izgara--2{grid-template-columns:repeat(auto-fit,minmax(min(100%,340px),1fr))}
.izgara--3{grid-template-columns:repeat(auto-fit,minmax(min(100%,290px),1fr))}
.ikili{display:grid;gap:3rem;align-items:center;grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr))}
.kart{background:var(--beyaz);border:1px solid var(--gri);padding:2rem 1.7rem;position:relative;text-decoration:none;color:inherit;display:block;transition:.2s}
.kart::before{content:"";position:absolute;left:-1px;top:-1px;width:48px;height:3px;background:var(--altin)}
a.kart:hover{border-color:var(--altin);transform:translateY(-3px)}
.kart h3{margin-top:.2rem}
.ikon{width:44px;height:44px;color:var(--altin);margin-bottom:.8rem}
.kart p{margin:0;color:var(--soluk);font-size:.97rem}
.kart ul{margin:.7rem 0 0;padding-left:1.1rem;color:var(--soluk);font-size:.94rem}
.liste{list-style:none;padding:0;margin:0}
.liste li{padding:.35rem 0 .35rem 1.6rem;position:relative}
.liste li::before{content:"";position:absolute;left:0;top:.95rem;width:12px;height:1px;background:var(--altin)}
.cerceve{position:relative;padding:3px;background:linear-gradient(135deg,var(--altin-acik),var(--altin),var(--altin-koyu))}
.cerceve img{width:100%;aspect-ratio:3/2;object-fit:cover}
.alan{display:grid;gap:2.5rem;align-items:start;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));padding:2.5rem 0;border-top:1px solid var(--cizgi)}
.alan:first-of-type{border-top:0;padding-top:0}
.alan .no{font-size:.8rem;letter-spacing:.2em;color:var(--altin);font-weight:500;display:block;margin-bottom:.3rem}
.yer-tutucu{background:var(--kirik);border:1px dashed var(--altin);padding:1.2rem 1.4rem;color:var(--soluk);font-size:.95rem}
.yer-tutucu b{color:var(--altin-koyu);font-weight:500;letter-spacing:.08em;text-transform:uppercase;font-size:.75rem;display:block;margin-bottom:.3rem}

/* Sayılar */
.sayilar{display:grid;gap:1.2rem;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));text-align:center}
.sayilar strong{display:block;font-size:2.6rem;color:var(--altin-acik);line-height:1;font-weight:300}
.sayilar span{font-size:.8rem;color:#c8c3bd;text-transform:uppercase;letter-spacing:.12em}

/* Proje kartları */
.proje{display:block;text-decoration:none;color:inherit;background:var(--beyaz);border:1px solid var(--gri);overflow:hidden;transition:.25s}
.proje:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(35,31,32,.12);border-color:var(--altin)}
.proje img{width:100%;aspect-ratio:3/2;object-fit:cover}
.proje .govde{padding:1rem 1.1rem 1.2rem}
.proje h3{font-size:1.05rem;margin:0 0 .3rem}
.proje .meta{font-size:.84rem;color:var(--soluk);margin:0}
.proje .meta b{color:var(--metin);font-weight:500}
.etiketler{display:flex;gap:.4rem;flex-wrap:wrap;margin-top:.6rem}
.etiket{font-size:.68rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;background:var(--kirik);color:var(--altin-koyu);border:1px solid var(--gri-acik);padding:.2rem .5rem}
.filtre{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:1.8rem}
.filtre button{font:inherit;font-weight:500;font-size:.82rem;letter-spacing:.06em;text-transform:uppercase;background:var(--beyaz);border:1px solid var(--gri);padding:.5rem 1rem;cursor:pointer;color:var(--antrasit)}
.filtre button[aria-pressed=true]{background:var(--antrasit);color:var(--beyaz);border-color:var(--antrasit)}
.proje[hidden]{display:none}

/* Referanslar */
.referanslar{display:flex;flex-wrap:wrap;gap:.6rem 1.6rem;justify-content:center;padding:0;margin:0;list-style:none}
.referanslar li{font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:#8d8781;font-size:.92rem}

/* Galeri */
.galeri{display:grid;gap:.8rem;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr))}
.galeri img{width:100%;aspect-ratio:4/3;object-fit:cover}
.galeri .genis{grid-column:1/-1}
.galeri .genis img{aspect-ratio:21/9}

/* Adımlar */
.adimlar{counter-reset:adim;display:grid;gap:1.2rem;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));padding:0;margin:0}
.adimlar li{list-style:none;background:var(--beyaz);border:1px solid var(--gri);padding:1.4rem 1.3rem 1.3rem}
.adimlar li::before{counter-increment:adim;content:counter(adim,decimal-leading-zero);display:block;font-weight:300;font-size:1.8rem;color:var(--altin);line-height:1;margin-bottom:.5rem}
.adimlar h3{font-size:1.05rem}
.adimlar p{margin:0;font-size:.92rem;color:var(--soluk)}

/* İletişim */
.iletisim-izgara{display:grid;gap:3rem;grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr))}
.bilgi{list-style:none;padding:0;margin:0 0 1.5rem}
.bilgi li{padding:.7rem 0;border-bottom:1px solid var(--cizgi)}
.bilgi b{display:block;font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--altin-koyu);font-weight:500}
.bilgi a{color:var(--antrasit);text-decoration:none}
.bilgi a:hover{color:var(--altin-koyu)}
.form{display:grid;gap:1rem}
.form label{font-weight:500;font-size:.88rem;letter-spacing:.04em}
.form input,.form textarea{font:inherit;width:100%;padding:.75rem .85rem;border:1px solid var(--gri);background:var(--beyaz);border-radius:0}
.form input:focus,.form textarea:focus{outline:2px solid var(--altin);border-color:var(--altin)}
.form .satir{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.form .dugme{justify-self:start;cursor:pointer;font:inherit;font-weight:500;letter-spacing:.1em;text-transform:uppercase;font-size:.85rem}
.uyari{padding:.9rem 1rem;background:var(--kirik);border:1px solid var(--gri);font-size:.92rem;margin:0}
.uyari:empty{display:none}
.uyari--hata{background:#fbeeec;border-color:#e6b4ad}
.uyari--ok{background:#eef5ee;border-color:#b5d4b8}
.harita{aspect-ratio:16/10;width:100%;border:1px solid var(--gri);background:var(--gri-acik)}

/* Alt bilgi */
.alt{background:var(--antrasit);color:#c8c3bd;font-size:.92rem;padding:3.5rem 0 1.5rem;border-top:10px solid var(--altin)}
.alt .izgara{grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));gap:2.5rem}
.alt h4{color:var(--beyaz);font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;margin-bottom:.9rem;font-weight:500}
.alt a{color:#e8e4de;text-decoration:none}
.alt a:hover{color:var(--altin-acik)}
.alt ul{list-style:none;padding:0;margin:0}
.alt li{padding:.2rem 0}
.alt .logo img{height:48px;margin-bottom:1rem}
.alt .slogan{color:var(--altin-acik);font-size:1.1rem;margin-top:.4rem}
.alt .telif{border-top:1px solid rgba(255,255,255,.12);margin-top:2.5rem;padding-top:1.2rem;font-size:.8rem;color:#9b9590;display:flex;justify-content:space-between;flex-wrap:wrap;gap:.5rem}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto}}