/* ===========================================================
   ESTEVIA DEKORASYON — Ana Site
   Renk: mürekkep siyah + inşaat sarısı
   Motif: teknik çizim ölçü çizgileri, künye şeritleri
   =========================================================== */

:root{
  --murekkep:#0B0B0D;
  --komur:#131317;
  --grafit:#1C1C22;
  --cizgi:#2C2C35;
  --sari:#F5C518;
  --sari-derin:#D9A400;
  --kireç:#F2EFE9;
  --sis:#9A9AA6;

  --en:1220px;
  --gecis:.35s cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--murekkep);color:var(--kireç);
  font:400 16px/1.7 Montserrat,system-ui,-apple-system,sans-serif;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--sari);outline-offset:3px}

.kap{width:100%;max-width:var(--en);margin:0 auto;padding:0 24px}

/* ---------- Tipografi ---------- */
h1,h2,h3,h4{font-weight:800;letter-spacing:-.025em;line-height:1.1;margin:0}
.baslik-xl{font-size:clamp(2.6rem,6.4vw,5rem)}
.baslik-l {font-size:clamp(2rem,4vw,3.1rem)}
.baslik-m {font-size:clamp(1.35rem,2.2vw,1.85rem)}

/* künye etiketi: teknik çizim şeridi */
.kunye{
  font-family:'Barlow Condensed',Montserrat,sans-serif;
  font-weight:600;font-size:.94rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--sari);display:inline-flex;align-items:center;gap:12px;
}
.kunye::before{content:"";width:34px;height:1px;background:var(--sari);flex:none}
.kunye.orta{justify-content:center}

.metin-sis{color:var(--sis)}
p{margin:0 0 1.1em}

/* ---------- Butonlar ---------- */
.btn{
  display:inline-flex;align-items:center;gap:11px;padding:15px 30px;
  font-weight:700;font-size:.82rem;letter-spacing:.14em;text-transform:uppercase;
  border:1px solid transparent;border-radius:2px;cursor:pointer;
  transition:background var(--gecis),color var(--gecis),border-color var(--gecis),transform var(--gecis);
}
.btn-sari{background:var(--sari);color:#000}
.btn-sari:hover{background:#fff;transform:translateY(-2px)}
.btn-cizgi{border-color:var(--cizgi);color:var(--kireç)}
.btn-cizgi:hover{border-color:var(--sari);color:var(--sari)}
.btn-koyu{background:#000;color:var(--sari)}
.btn-koyu:hover{background:var(--sari);color:#000}
.btn .ok{transition:transform var(--gecis)}
.btn:hover .ok{transform:translateX(5px)}

/* ---------- Üst bar ---------- */
.ustbar{
  background:#000;border-bottom:1px solid var(--cizgi);
  font-size:.78rem;letter-spacing:.05em;color:var(--sis);
}
.ustbar .kap{display:flex;justify-content:space-between;align-items:center;gap:20px;height:40px}
.ustbar a:hover{color:var(--sari)}
.ustbar-sol{display:flex;gap:26px}
.ustbar-sag{display:flex;gap:16px;align-items:center}

/* ---------- Menü ---------- */
.ustluk{
  position:sticky;top:0;z-index:90;background:rgba(11,11,13,.94);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--cizgi);
}
.ustluk .kap{display:flex;align-items:center;justify-content:space-between;height:78px;gap:24px}
.logo{display:flex;align-items:baseline;gap:2px;font-weight:800;font-size:1.42rem;letter-spacing:-.03em}
.logo b{color:var(--sari)}
.logo small{
  display:block;font-family:'Barlow Condensed',sans-serif;font-weight:500;
  font-size:.62rem;letter-spacing:.34em;color:var(--sis);text-transform:uppercase;margin-top:-4px;
}
.menu{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0}
.menu > li > a{
  display:block;padding:10px 15px;font-size:.83rem;font-weight:600;letter-spacing:.05em;
  color:var(--kireç);transition:color var(--gecis);position:relative;
}
.menu > li > a::after{
  content:"";position:absolute;left:15px;right:15px;bottom:2px;height:2px;background:var(--sari);
  transform:scaleX(0);transform-origin:left;transition:transform var(--gecis);
}
.menu > li > a:hover::after,.menu > li.aktif > a::after{transform:scaleX(1)}
.menu > li.aktif > a{color:var(--sari)}
.acilir{position:relative}
.acilir-kutu{
  position:absolute;top:100%;left:0;min-width:250px;background:var(--komur);
  border:1px solid var(--cizgi);padding:8px;list-style:none;margin:0;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:all var(--gecis);
}
.acilir:hover .acilir-kutu,.acilir:focus-within .acilir-kutu{opacity:1;visibility:visible;transform:translateY(0)}
.acilir-kutu a{display:block;padding:10px 14px;font-size:.84rem;color:var(--sis);transition:all var(--gecis)}
.acilir-kutu a:hover{background:var(--grafit);color:var(--sari);padding-left:20px}

.menu-btn{display:none;background:none;border:0;padding:8px;cursor:pointer}
.menu-btn span{display:block;width:26px;height:2px;background:var(--kireç);margin:5px 0;transition:var(--gecis)}
.menu-btn.acik span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn.acik span:nth-child(2){opacity:0}
.menu-btn.acik span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Hero / slider ---------- */
.hero{position:relative;min-height:min(88vh,760px);display:flex;align-items:center;overflow:hidden;background:#000}
.hero-kat{position:absolute;inset:0;opacity:0;transition:opacity 1.1s ease}
.hero-kat.aktif{opacity:1}
.hero-kat img{width:100%;height:100%;object-fit:cover;opacity:.42}
.hero-kat::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,11,13,.95) 0%,rgba(11,11,13,.72) 45%,rgba(11,11,13,.35) 100%);
}
.hero-bos{position:absolute;inset:0;background:
  radial-gradient(circle at 78% 32%,rgba(245,197,24,.13),transparent 58%),
  repeating-linear-gradient(90deg,transparent 0 79px,rgba(255,255,255,.035) 79px 80px),
  repeating-linear-gradient(0deg,transparent 0 79px,rgba(255,255,255,.035) 79px 80px);
}
.hero-icerik{position:relative;z-index:2;max-width:760px;padding:70px 0}
.hero-icerik h1{margin:22px 0 20px}
.hero-icerik p{font-size:1.08rem;color:var(--sis);max-width:600px}
.hero-btnler{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}

.hero-nokta{position:absolute;bottom:38px;right:24px;z-index:3;display:flex;gap:10px}
.hero-nokta button{
  width:38px;height:3px;background:rgba(255,255,255,.25);border:0;padding:0;cursor:pointer;transition:background var(--gecis);
}
.hero-nokta button[aria-current="true"]{background:var(--sari)}

/* ölçü çizgisi şeridi — imza öğe */
.olcu-serit{
  position:absolute;left:0;right:0;bottom:0;height:56px;border-top:1px solid var(--cizgi);
  display:flex;align-items:center;z-index:2;background:rgba(0,0,0,.55);
}
.olcu-serit .kap{display:flex;justify-content:space-between;gap:24px;
  font-family:'Barlow Condensed',sans-serif;font-size:.86rem;letter-spacing:.2em;text-transform:uppercase;color:var(--sis)}
.olcu-serit b{color:var(--sari);font-weight:600}

/* ---------- Bölüm iskeleti ---------- */
.bolum{padding:104px 0}
.bolum-koyu{background:var(--komur)}
.bolum-ust{max-width:660px;margin-bottom:56px}
.bolum-ust.orta{margin-left:auto;margin-right:auto;text-align:center}
.bolum-ust h2{margin:18px 0 16px}
.bolum-ust p{color:var(--sis);margin:0}
.bolum-basi{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:52px}
.bolum-basi .bolum-ust{margin-bottom:0}

/* ---------- Izgara ---------- */
.izgara{display:grid;gap:1px;background:var(--cizgi)}
.i2{grid-template-columns:repeat(2,1fr)}
.i3{grid-template-columns:repeat(3,1fr)}
.i4{grid-template-columns:repeat(4,1fr)}
.bosluk{display:grid;gap:26px}

/* ---------- Hizmet kartı ---------- */
.hizmet{
  background:var(--murekkep);padding:40px 34px;position:relative;
  transition:background var(--gecis);display:flex;flex-direction:column;min-height:270px;
}
.bolum-koyu .hizmet{background:var(--komur)}
.hizmet:hover{background:var(--grafit)}
.hizmet .no{
  font-family:'Barlow Condensed',sans-serif;font-size:.9rem;letter-spacing:.2em;
  color:var(--cizgi);transition:color var(--gecis);
}
.hizmet:hover .no{color:var(--sari)}
.hizmet h3{margin:16px 0 12px;font-size:1.15rem}
.hizmet p{color:var(--sis);font-size:.92rem;margin:0}
.hizmet .git{
  margin-top:auto;padding-top:22px;font-size:.76rem;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:var(--sari);opacity:0;transform:translateY(6px);transition:all var(--gecis);
}
.hizmet:hover .git{opacity:1;transform:translateY(0)}

/* ---------- Proje kartı (çizim paftası mantığı) ---------- */
.proje{position:relative;overflow:hidden;background:var(--komur);display:block}
.proje-gorsel{aspect-ratio:4/3;overflow:hidden;background:var(--grafit)}
.proje-gorsel img{width:100%;height:100%;object-fit:cover;transition:transform .7s cubic-bezier(.22,.61,.36,1)}
.proje:hover .proje-gorsel img{transform:scale(1.07)}
.proje-bilgi{padding:26px 28px 30px;border-top:1px solid var(--cizgi)}
.proje-bilgi h3{font-size:1.08rem;margin-bottom:8px}
.proje-etiket{
  font-family:'Barlow Condensed',sans-serif;font-size:.82rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--sari);
}
.pafta{
  display:flex;flex-wrap:wrap;gap:0;margin-top:18px;border-top:1px solid var(--cizgi);
  font-family:'Barlow Condensed',sans-serif;font-size:.82rem;letter-spacing:.13em;text-transform:uppercase;
}
.pafta div{flex:1;min-width:88px;padding:12px 0 0;border-right:1px solid var(--cizgi)}
.pafta div:last-child{border-right:0}
.pafta span{display:block;color:var(--sis);font-size:.7rem;letter-spacing:.2em}
.pafta b{color:var(--kireç);font-weight:600}

/* ---------- Sayaç ---------- */
.sayac{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--cizgi);border-block:1px solid var(--cizgi)}
.sayac div{background:var(--murekkep);padding:44px 26px;text-align:center}
.sayac strong{display:block;font-size:clamp(2.3rem,4.5vw,3.4rem);font-weight:800;color:var(--sari);line-height:1;letter-spacing:-.03em}
.sayac span{display:block;margin-top:12px;font-family:'Barlow Condensed',sans-serif;font-size:.86rem;
  letter-spacing:.2em;text-transform:uppercase;color:var(--sis)}

/* ---------- Süreç (gerçek sıra → numara anlamlı) ---------- */
.surec{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--cizgi)}
.surec-adim{background:var(--komur);padding:36px 26px 40px;position:relative}
.surec-adim::before{
  content:"";position:absolute;top:0;left:0;height:3px;width:0;background:var(--sari);transition:width .5s ease;
}
.surec-adim:hover::before{width:100%}
.surec-adim .adim-no{
  font-family:'Barlow Condensed',sans-serif;font-size:2.6rem;font-weight:600;line-height:1;color:var(--sari);
}
.surec-adim h4{margin:14px 0 10px;font-size:1rem}
.surec-adim p{font-size:.88rem;color:var(--sis);margin:0}

/* ---------- CTA şeridi ---------- */
.cta{background:var(--sari);color:#000;padding:64px 0}
.cta .kap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:30px}
.cta h2{font-size:clamp(1.6rem,3.2vw,2.4rem);max-width:640px}
.cta p{margin:12px 0 0;font-weight:500;opacity:.78}

/* ---------- SSS ---------- */
.sss-oge{border-bottom:1px solid var(--cizgi)}
.sss-soru{
  width:100%;background:none;border:0;color:var(--kireç);text-align:left;cursor:pointer;
  padding:24px 44px 24px 0;font-size:1.02rem;font-weight:600;position:relative;letter-spacing:-.01em;
}
.sss-soru::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);color:var(--sari);font-size:1.5rem;font-weight:400}
.sss-oge.acik .sss-soru::after{content:"–"}
.sss-oge.acik .sss-soru{color:var(--sari)}
.sss-cevap{max-height:0;overflow:hidden;transition:max-height .4s ease}
.sss-cevap p{padding:0 40px 26px 0;color:var(--sis);font-size:.95rem;margin:0}

/* ---------- Formlar ---------- */
.form-alan{margin-bottom:20px}
.form-alan label{display:block;font-family:'Barlow Condensed',sans-serif;font-size:.86rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--sis);margin-bottom:9px}
.form-alan input,.form-alan select,.form-alan textarea{
  width:100%;padding:14px 16px;background:var(--komur);border:1px solid var(--cizgi);border-radius:2px;
  color:var(--kireç);font:400 15px Montserrat,sans-serif;transition:border-color var(--gecis);
}
.form-alan textarea{min-height:140px;resize:vertical}
.form-alan input:focus,.form-alan select:focus,.form-alan textarea:focus{border-color:var(--sari);outline:none}
.form-alan select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--sari) 50%),linear-gradient(135deg,var(--sari) 50%,transparent 50%);
  background-position:calc(100% - 20px) 22px,calc(100% - 14px) 22px;background-size:6px 6px;background-repeat:no-repeat}
.form-satir{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-not{font-size:.8rem;color:var(--sis);margin-top:-8px}

.uyari{padding:15px 18px;border-radius:2px;margin-bottom:24px;font-size:.92rem}
.uyari-ok{background:#12261a;border:1px solid #23512f;color:#9de8b4}
.uyari-hata{background:#301316;border:1px solid #5e2026;color:#ffb3b8}

/* ---------- İçerik metni ---------- */
.yazi-govde{font-size:1.02rem;line-height:1.85;color:#d6d3cc}
.yazi-govde h3{margin:38px 0 14px;font-size:1.28rem;color:var(--kireç)}
.yazi-govde ul{padding-left:20px}
.yazi-govde li{margin-bottom:9px}
.yazi-govde a{color:var(--sari);border-bottom:1px solid rgba(245,197,24,.4)}
.yazi-govde blockquote{margin:28px 0;padding:20px 26px;border-left:3px solid var(--sari);background:var(--komur);color:var(--sis)}

/* ---------- Sayfa başlığı ---------- */
.sayfa-bas{padding:70px 0 60px;border-bottom:1px solid var(--cizgi);background:var(--komur);position:relative;overflow:hidden}
.sayfa-bas::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(90deg,transparent 0 59px,rgba(255,255,255,.03) 59px 60px);
}
.sayfa-bas h1{margin:16px 0 0;position:relative}
.kirinti{font-size:.8rem;color:var(--sis);margin-top:14px;position:relative}
.kirinti a:hover{color:var(--sari)}

/* ---------- Alt bilgi ---------- */
.altbilgi{background:#000;border-top:1px solid var(--cizgi);padding:72px 0 0;font-size:.9rem}
.altbilgi-izgara{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:44px;padding-bottom:56px}
.altbilgi h4{font-family:'Barlow Condensed',sans-serif;font-weight:600;font-size:.94rem;letter-spacing:.22em;
  text-transform:uppercase;color:var(--sari);margin-bottom:22px}
.altbilgi ul{list-style:none;padding:0;margin:0}
.altbilgi li{margin-bottom:11px}
.altbilgi a{color:var(--sis);transition:color var(--gecis)}
.altbilgi a:hover{color:var(--sari)}
.altbilgi p{color:var(--sis)}
.altbilgi-alt{border-top:1px solid var(--cizgi);padding:24px 0;display:flex;flex-wrap:wrap;
  justify-content:space-between;gap:14px;font-size:.8rem;color:var(--sis)}

/* ---------- WhatsApp ---------- */
.wp{
  position:fixed;right:22px;bottom:22px;z-index:80;width:56px;height:56px;border-radius:50%;
  background:#25D366;display:grid;place-items:center;box-shadow:0 8px 26px rgba(0,0,0,.5);
  transition:transform var(--gecis);
}
.wp:hover{transform:scale(1.08)}
.wp svg{width:29px;height:29px;fill:#fff}

/* ---------- Görünüme girince ---------- */
.gir{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.gir.gorundu{opacity:1;transform:none}

/* ---------- Sayfalama ---------- */
.sayfalama{display:flex;gap:8px;justify-content:center;margin-top:56px;flex-wrap:wrap}
.sayfalama a,.sayfalama span{
  min-width:44px;padding:11px 14px;text-align:center;border:1px solid var(--cizgi);font-size:.85rem;font-weight:600;
}
.sayfalama a:hover{border-color:var(--sari);color:var(--sari)}
.sayfalama .simdi{background:var(--sari);color:#000;border-color:var(--sari)}

/* ---------- Duyarlı ---------- */
@media (max-width:1080px){
  .i4{grid-template-columns:repeat(2,1fr)}
  .surec{grid-template-columns:repeat(2,1fr)}
  .altbilgi-izgara{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .ustbar{display:none}
  .menu-btn{display:block}
  .menu{
    position:fixed;inset:78px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;
    background:var(--komur);border-bottom:1px solid var(--cizgi);padding:10px 0;
    max-height:0;overflow:hidden;transition:max-height .4s ease;
  }
  .menu.acik{max-height:calc(100vh - 78px);overflow-y:auto}
  .menu > li > a{padding:15px 24px;font-size:.95rem;border-bottom:1px solid var(--cizgi)}
  .menu > li > a::after{display:none}
  .acilir-kutu{position:static;opacity:1;visibility:visible;transform:none;border:0;background:var(--murekkep);padding:0}
  .acilir-kutu a{padding-left:40px;font-size:.86rem}
  .i2,.i3{grid-template-columns:1fr}
  .sayac{grid-template-columns:repeat(2,1fr)}
  .bolum{padding:72px 0}
  .form-satir{grid-template-columns:1fr}
  .olcu-serit{display:none}
}
@media (max-width:560px){
  .i4{grid-template-columns:1fr}
  .altbilgi-izgara{grid-template-columns:1fr;gap:34px}
  .hero{min-height:auto;padding:40px 0}
  .btn{padding:14px 24px;font-size:.78rem}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .gir{opacity:1;transform:none}
}