/* Başaranlar Metal — tasarım sistemi
   Fikir: atölyede levhaya tebeşirle yazılan ölçü. Zeminler hadde (koyu) ve galvaniz (açık);
   lazer turuncusu yalnız kesim anında. Hareket yalnız transform / opacity / clip-path. */
:root{
  --hadde:#22303A; --hadde-2:#2C3B46; --hadde-3:#16212A;
  --galvaniz:#E4E7E9; --galvaniz-2:#D2D8DC;
  --marka:#004466; --kerf:#FF6A1A; --tebesir:#F3F5F6; --celik:#8C979F; --murekkep:#14202A;
  --f-dev:"Big Shoulders Display", "Arial Narrow", sans-serif;
  --f-metin:"Archivo", system-ui, sans-serif;
  --f-baslik:"Manrope", "Archivo", system-ui, sans-serif;
  --t-kucuk:.8125rem; --t-metin:clamp(1rem,.95rem + .25vw,1.125rem); --t-orta:clamp(1.15rem,1rem + .6vw,1.5rem);
  --t-h3:clamp(1.35rem,1.1rem + .9vw,1.9rem); --t-h2:clamp(2rem,1.3rem + 2.6vw,3.7rem); --t-dev:clamp(2.6rem,1.4rem + 4vw,5.6rem);
  --kenar:clamp(20px,4vw,64px); --ust-h:72px;
  --egri:cubic-bezier(.2,.7,.25,1); --sure:700ms;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-padding-top:var(--ust-h);-webkit-text-size-adjust:100%}
body{background:var(--galvaniz);color:var(--murekkep);font-family:var(--f-metin);font-size:var(--t-metin);line-height:1.55;font-variation-settings:"wdth" 100;-webkit-font-smoothing:antialiased;overflow-x:clip}
img,svg,picture{display:block;max-width:100%}
/* Safari düğme ve form öğelerinde sayfanın yazı tipini almaz; her öğe sitenin yazısını kullansın */
button,input,select,textarea{font-family:inherit}
img{height:auto}
a{color:inherit}
/* odak halkası zemine göre: açıkta marka laciverti, koyuda tebeşir (ikisi de ≥3:1); turuncu yalnız kesim anına ayrıldı */
:focus-visible{outline:3px solid var(--odak,var(--marka));outline-offset:3px}
.kok,.kapi,.doruk,.bukum,.kusak,.iletisim,.alt,.ust.koyu,.form-islem{--odak:var(--tebesir)}
.atla{position:absolute;left:var(--kenar);top:-60px;z-index:60;background:var(--murekkep);color:#fff;padding:10px 16px}
.atla:focus{top:12px}

/* yazı sistemi */
.yil,.logo-yazi b{font-family:var(--f-dev);font-weight:800;letter-spacing:-.005em}
.dev,.buyuk,h3{font-family:var(--f-baslik);font-weight:700;letter-spacing:-.02em;text-wrap:balance}
.dev{font-size:var(--t-dev);line-height:1.05}
.buyuk{font-size:var(--t-h2);line-height:1.1}
h3{font-size:var(--t-h3);line-height:1.15}
p{max-width:62ch}

/* düğmeler */
.dugme{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;font-weight:700;font-size:1rem;text-decoration:none;border-radius:2px;white-space:nowrap;transition:background-color .2s,color .2s,transform .2s var(--egri)}
.dugme-ana{background:var(--marka);color:#fff}
.dugme-ana:hover{background:#00334d}
.dugme-cizgi{border:2px solid currentColor}
.dugme:active{transform:translateY(1px)}

/* üst şerit */
.ust{position:fixed;inset:0 0 auto;height:var(--ust-h);z-index:40;display:flex;align-items:center;gap:32px;padding:0 var(--kenar);background:var(--galvaniz);border-bottom:1px solid transparent;transition:border-color .3s,background-color .3s,color .3s}
.ust.koyu{background:var(--hadde-3);color:var(--tebesir)}
.ust.cizgili{border-color:rgba(20,32,42,.12)}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--marka)}
.ust.koyu .logo{color:var(--tebesir)}
.logo-b{width:40px;height:39px;fill:currentColor;flex:none}
.logo-yazi{display:flex;flex-direction:column;line-height:1}
.logo-yazi b{font-size:1.5rem;letter-spacing:.04em}
.logo-yazi small{font-size:.66rem;font-weight:600;letter-spacing:.32em;font-variation-settings:"wdth" 75;color:#4d5963;margin-top:3px}
.ust.koyu .logo-yazi small{color:var(--celik)}
.menu{display:flex;gap:28px;margin-left:auto}
.menu a{text-decoration:none;font-weight:600;font-size:.95rem;padding:8px 0;background:linear-gradient(currentColor,currentColor) 0 100%/0 2px no-repeat;transition:background-size .3s var(--egri)}
.menu a:hover,.menu a[aria-current="true"]{background-size:100% 2px}
.ust-dugme{min-height:42px;padding:0 18px}

/* tebeşir işaretleri (ölçü çizgileri) */
.isaret{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:visible}
.isaret .cizim{fill:none;stroke:var(--tebesir);stroke-width:3.4;stroke-linecap:round;stroke-dasharray:1;stroke-dashoffset:calc(1 - clamp(0,var(--ciz,0),1))}
.isaret text{font-family:var(--f-dev);font-weight:800;font-size:44px;fill:var(--tebesir);opacity:clamp(0,var(--ciz,0),1);paint-order:stroke;stroke:rgba(0,0,0,.35);stroke-width:6px}

/* 1 · açılış: plaka penceresi ekranı kaplar */
.giris{position:relative;height:190vh;background:var(--galvaniz)}
/* metin ve ölçü şeridi aynı akışta: kısa ekranda şerit metnin üstüne binemez, en alta itilir */
.giris-sahne{position:sticky;top:0;height:100svh;overflow:hidden;display:flex;flex-direction:column}
.giris-metin{position:relative;z-index:3;padding:calc(var(--ust-h) + clamp(28px,6vh,80px)) var(--kenar) 0;width:min(58%,980px);transform:translate3d(0,calc(var(--p,0) * -22vh),0);opacity:calc(1 - var(--p,0) * 2.2)}
.giris-metin .dev{color:var(--murekkep);font-size:clamp(2.2rem,min(1rem + 3.2vw,7.4vh),4.8rem)}
@media (max-height:700px) and (min-width:761px){.giris-metin{padding-top:calc(var(--ust-h) + 20px)}.giris-ozet{font-size:1rem;margin-top:16px}.eylem{margin-top:18px}}
.giris-ozet{font-size:var(--t-orta);margin-top:28px;max-width:46ch}
.eylem{display:flex;gap:14px;flex-wrap:wrap;margin-top:32px}
.giris-foto{position:absolute;inset:0;z-index:1;overflow:hidden}
.giris-foto picture,.giris-foto img{width:100%;height:100%;object-fit:cover}
.giris-foto img{transform:scale(calc(1.12 - var(--p,0) * .12))}
.giris-foto{clip-path:polygon(
  calc(62% - var(--p,0) * 62%) calc(var(--ust-h) + 40px - var(--p,0) * (var(--ust-h) + 40px)),
  calc(100% - var(--kenar) - 70px + var(--p,0) * (var(--kenar) + 70px)) calc(var(--ust-h) + 40px - var(--p,0) * (var(--ust-h) + 40px)),
  calc(100% - var(--kenar) + var(--p,0) * var(--kenar)) calc(var(--ust-h) + 110px - var(--p,0) * (var(--ust-h) + 110px)),
  calc(100% - var(--kenar) + var(--p,0) * var(--kenar)) calc(100% - 140px + var(--p,0) * 140px),
  calc(62% - var(--p,0) * 62%) calc(100% - 140px + var(--p,0) * 140px))}
.giris-foto figcaption{position:absolute;right:var(--kenar);bottom:calc(150px - var(--p,0) * 120px);color:var(--tebesir);font-size:var(--t-kucuk);opacity:calc(var(--p,0) * 2 - .6)}
.giris-isaret{--ciz:calc(var(--p,0) * 2.4 - .5)}
.olcu-seridi{position:relative;z-index:3;margin-top:auto;display:grid;grid-template-columns:repeat(3,auto);justify-content:start;gap:clamp(20px,4vw,64px);padding:0 var(--kenar) 28px;opacity:calc(1 - var(--p,0) * 2.6)}
.olcu-seridi div{border-top:2px solid var(--murekkep);padding-top:10px}
.olcu-seridi dt{font-size:var(--t-kucuk);color:#4d5963}
.olcu-seridi dd{font-family:var(--f-dev);font-weight:800;font-size:clamp(1.5rem,1rem + 1.6vw,2.6rem);line-height:1}

/* 2 · kök: yatay iz */
.kok{position:relative;height:320vh;background:var(--hadde);color:var(--tebesir)}
.kok-sahne{position:sticky;top:0;height:100svh;overflow:hidden;display:flex;flex-direction:column;justify-content:center;padding-top:var(--ust-h)}
.kok-ust{padding:0 var(--kenar);font-size:var(--t-kucuk);font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--celik);margin-bottom:12px}
.kok-baslik{font-family:var(--f-baslik);font-weight:700;letter-spacing:-.02em;font-size:var(--t-h2);line-height:1.1;padding:0 var(--kenar);max-width:22ch;text-wrap:balance}
.kok-giris{padding:0 var(--kenar);margin:16px 0 clamp(24px,4.5vh,52px);color:#C9D1D6;max-width:calc(60ch + 2 * var(--kenar))}
.kok-iz{list-style:none;display:flex;gap:clamp(40px,7vw,120px);padding:0 var(--kenar);width:max-content;transform:translate3d(var(--kaydir,0px),0,0)}
.kok-durak{width:clamp(280px,130px + 25vw,580px);flex:none}
.yil{display:block;font-size:clamp(3.6rem,2.2rem + 5vw,8.5rem);line-height:.85;color:transparent;-webkit-text-stroke:2px var(--celik);margin-bottom:22px}
.kok-durak.gecti .yil{color:var(--tebesir);-webkit-text-stroke-color:var(--tebesir);transition:color .6s var(--egri)}
.kok-durak p{font-size:var(--t-metin);line-height:1.6;color:#C9D1D6}
.kok-durak b{color:var(--tebesir)}
.kok-bugun{width:clamp(320px,62vw,1100px)}
.kok-bugun img{width:100%;aspect-ratio:1880/280;object-fit:cover;margin-bottom:22px}

/* 2b · kapıdan girin: --p ile koridorun sonundaki lazere yaklaşma (odak lazerin yeri: %50 / %43), sonda doruğun zeminine kararma */
.kapi{position:relative;height:240vh;background:var(--hadde-3);color:var(--tebesir)}
.kapi-sahne{position:sticky;top:0;height:100svh;overflow:hidden}
.kapi-foto,.kapi-foto img{position:absolute;inset:0;width:100%;height:100%}
/* yatay ekranda dikey fotoğraf önce bir kapı aralığı gibi tam boy durur, kaydırdıkça ekranı kaplayıp lazere yaklaşır */
.kapi-foto img{object-fit:contain;object-position:50% 43%;transform-origin:50% 43%;transform:scale(calc(1 + var(--p,0) * var(--kapi-buyu,1.8)))}
@media (max-aspect-ratio:3/4){.kapi-foto img{object-fit:cover;--kapi-buyu:.9}}
.kapi-sahne::after{content:"";position:absolute;inset:0;background:var(--hadde-3);opacity:calc((var(--p,0) - .72) * 3.6);pointer-events:none}
.kapi-metin{position:absolute;left:var(--kenar);bottom:clamp(40px,10vh,96px);max-width:560px;padding:20px 24px;background:rgba(22,33,42,.78);
  opacity:calc(1 - var(--p,0) * 2.6);transform:translate3d(0,calc(var(--p,0) * -40px),0)}
.kapi-metin p{margin-top:10px;font-size:var(--t-orta);color:#C9D1D6}

/* 3 · doruk: levhadan B */
.doruk{position:relative;height:400vh;background:var(--hadde-3);color:var(--tebesir)}
.doruk-sahne{position:sticky;top:0;height:100svh;overflow:hidden}
.levha{position:absolute;inset:0;width:100%;height:100%}
.kerf{fill:none;stroke:url(#tablaKerf);stroke-width:1.3;stroke-dasharray:var(--uz,400);stroke-dashoffset:calc(var(--uz,400) * (1 - var(--kes,0)))}
.kesim-izi{fill:none;stroke:var(--kerf);stroke-width:.55;stroke-linecap:round;stroke-dasharray:var(--uz,400);stroke-dashoffset:calc(var(--uz,400) * (1 - var(--kes,0)));opacity:calc(1 - var(--dus,0) * 3)}
.lazer{opacity:var(--lazer-op,0)}
.lazer-nokta{fill:#FFF3E8}
.lazer-hale{fill:var(--kerf);opacity:.35}
.kivilcim path{stroke:#FFB27A;stroke-width:.35;stroke-linecap:round}
.parca{transform-box:fill-box;transform-origin:50% 0;transform:translate3d(0,calc(var(--dus,0) * 120px),0) rotate(calc(var(--dus,0) * 14deg));opacity:calc(1 - var(--dus,0) * .9)}
/* paslanmaz levha: delik kenarı sacın et kalınlığı, düşen parçanın kenarı ışık alır */
.delik-tabla{opacity:calc(var(--dus,0) * 25)}
.delik-kenar{fill:none;stroke:#3A4249;stroke-width:.7;opacity:var(--dus,0)}
.parca-kenar{fill:none;stroke:#E9ECEE;stroke-width:.3;opacity:calc(var(--dus,0) * 8)}
.doruk .ipucu{color:#25313A;text-shadow:0 0 14px rgba(214,219,222,.95),0 0 3px rgba(214,219,222,.9)}
.doruk .ipucu-buyuk{color:var(--murekkep)}
/* parça yerindeyken maske ve kırpma kenarı arasındaki kıl payı izi örter; düşüş başlayınca çekilir */
.levha-arka{opacity:calc(1 - var(--dus,0) * 25)}
/* doruk canlı katman: portal (gantry) X'te, taşıyıcı X-Y'de lazeri taşır; cetveller tezgâh mm'sini gösterir */
.portal,.tasiyici{opacity:var(--portal-op,0)}
.portal-kiris{fill:#0E161C;opacity:.78}
.portal-kenar{fill:var(--celik);opacity:.55}
.tasiyici-govde{fill:#1A252D;stroke:var(--celik);stroke-width:.25}
.tasiyici-meme{fill:none;stroke:#05090C;stroke-width:.9}
.kilavuz{stroke:var(--murekkep);stroke-width:.12;stroke-dasharray:.9 .9;opacity:calc(var(--portal-op,0) * .3)}
.kesim-sicak{fill:none;stroke:#FFE7C4;stroke-width:.8;stroke-linecap:round;opacity:var(--lazer-op,0)}
.levha-cetvel{opacity:calc(.6 + var(--portal-op,0) * .4)}
.levha-cetvel line{stroke:var(--murekkep);stroke-width:var(--cz,.15)}
/* rakamlar açık hale ile: koyu portal kirişinin üstünden geçerken de okunur */
.levha-cetvel text{fill:var(--murekkep);font-family:var(--f-metin);font-weight:600;paint-order:stroke;stroke:#D6DBDE;stroke-width:calc(var(--cz,.15) * 3)}
.levha-cetvel .im{fill:var(--kerf)}
.kivilcim-tuval{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.levha-isik{position:absolute;left:0;top:0;width:1100px;height:1100px;margin:-550px 0 0 -550px;border-radius:50%;pointer-events:none;
  background:radial-gradient(closest-side,rgba(255,255,255,.075),rgba(255,255,255,0));transform:translate3d(var(--ix,60vw),var(--iy,40vh),0);opacity:calc(1 - var(--dus,0))}
.cnc{position:absolute;top:calc(var(--ust-h) + 40px);right:var(--kenar);width:clamp(260px,28vw,330px);font-size:var(--t-kucuk);line-height:1.3;color:#C9D1D6;
  border-top:2px solid var(--tebesir);padding:10px 14px 12px;background:rgba(14,22,28,.9);font-variant-numeric:tabular-nums;
  opacity:var(--cnc-op,0);transform:translate3d(0,calc((1 - var(--cnc-op,0)) * -14px),0)}
.cnc-ust{display:flex;flex-wrap:wrap;justify-content:space-between;gap:2px 12px;margin-bottom:6px;letter-spacing:.04em;text-transform:uppercase}
.cnc-ust span{white-space:nowrap}
.cnc-durum{color:var(--tebesir)}
.cnc[data-kesiyor] .cnc-durum{color:var(--kerf)}
.cnc dl div{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:5px 0;border-bottom:1px solid rgba(243,245,246,.12)}
.cnc dt{color:var(--celik)}
.cnc dd{color:#C9D1D6;white-space:nowrap}
.cnc dd span{font-family:var(--f-dev);font-weight:800;font-size:1.3rem;line-height:1;color:var(--tebesir)}
.cnc-bar{height:3px;margin-top:10px;background:rgba(243,245,246,.15)}
.cnc-bar i{display:block;height:100%;background:var(--kerf);transform-origin:0 50%;transform:scaleX(var(--kes,0))}
@media (hover:none){.levha-isik{display:none}}
.doruk-metin{position:absolute;left:var(--kenar);bottom:clamp(40px,10vh,110px);width:min(40ch,40vw)}
.ipucu{position:absolute;left:0;bottom:0;width:100%;font-size:var(--t-orta);line-height:1.4;color:#C9D1D6;opacity:var(--o,0);transform:translate3d(0,calc((1 - var(--o,0)) * 24px),0)}
.ipucu-buyuk{display:block;font-family:var(--f-baslik);font-weight:700;letter-spacing:-.02em;font-size:var(--t-h2);line-height:1.1;color:var(--tebesir);margin-bottom:12px}
.ipucu-3{left:var(--kenar);right:var(--kenar);width:auto;bottom:28px}
.ipucu-3 .ipucu-buyuk{font-size:clamp(2.2rem,1.2rem + 3vw,4.6rem);line-height:1.05;margin:0}

/* bölüm başı */
.bolum-bas{padding:clamp(80px,14vh,160px) var(--kenar) clamp(32px,6vh,64px);display:grid;grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:24px 48px;align-items:end}
.bolum-bas p{font-size:var(--t-orta)}

/* 4 · iki kesim */
.kesim{background:var(--galvaniz)}
.tezgah{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:clamp(24px,4vw,64px);padding:0 var(--kenar) clamp(80px,14vh,160px);align-items:end}
.tezgah-plazma{grid-template-columns:minmax(0,4fr) minmax(0,8fr)}
.tezgah-plazma .olculu{order:2}
.olculu{position:relative;overflow:hidden;clip-path:inset(calc((1 - var(--ac,0)) * 100%) 0 0 0)}
.olculu img{width:100%;aspect-ratio:1600/816;object-fit:cover;transform:scale(calc(1.12 - var(--ac,0) * .1)) translate3d(0,calc((1 - var(--ac,0)) * 6%),0)}
.olculu .isaret{--ciz:calc(var(--ac,0) * 1.8 - .8)}
.tezgah-metin p{margin-top:16px}
.tezgah-metin .tezgah-ozet{margin-top:8px;font-family:var(--f-baslik);font-weight:700;font-size:var(--t-orta);line-height:1.3;color:var(--marka)}
.degerler{margin-top:24px;border-top:2px solid currentColor}
.degerler div{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px solid rgba(20,32,42,.18)}
.degerler dt{color:#4d5963}
.degerler dd{font-weight:700;text-align:right}
.ekle{display:inline-flex;align-items:center;gap:10px;margin-top:22px;font-weight:600;cursor:pointer;min-height:44px}
.ekle input,.fis input,.form-islem input{width:20px;height:20px;accent-color:var(--marka);flex:none}
.bukum .ekle input,.form-islem input{accent-color:var(--tebesir)}

/* 5 · büküm: cetvel (3.050 mm; büyük çizgi 1.000 mm, küçük 100 mm) */
.bukum{position:relative;height:280vh;background:var(--hadde);color:var(--tebesir)}
.bukum-sahne{position:sticky;top:0;height:100svh;overflow:hidden;display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);grid-template-rows:1fr auto;gap:0 clamp(24px,4vw,64px);padding:calc(var(--ust-h) + 32px) var(--kenar) 40px;align-items:center}
.bukum-metin p{margin-top:18px;color:#C9D1D6}
.bukum .buyuk{font-size:clamp(2rem,min(1.2rem + 2.2vw,6.4vh),3.4rem)}
.degerler dt,.degerler dd{white-space:nowrap}
/* kısa ekran (dizüstü + tarayıcı çubukları): cetvel görünür kalsın diye açıklama paragrafı çekilir */
@media (max-height:780px) and (min-width:1021px){.bukum-metin p{display:none}.bukum-sahne{padding-top:calc(var(--ust-h) + 16px);padding-bottom:24px}}
.bukum .degerler{border-color:var(--tebesir)}
.bukum .degerler div{border-color:rgba(243,245,246,.18)}
.bukum .degerler dt{color:var(--celik)}
.bukum-foto{overflow:hidden;clip-path:inset(0 calc((1 - var(--p,0) * 1.6) * 100%) 0 0)}
.bukum-foto img{width:100%;aspect-ratio:1600/816;object-fit:cover}
.cetvel{grid-column:1 / -1;position:relative;height:64px;margin-top:20px}
.cetvel-cizgiler{position:absolute;inset:0 0 auto;height:18px;background:repeating-linear-gradient(90deg,var(--celik) 0 1px,transparent 1px calc(100% / 30.5)),repeating-linear-gradient(90deg,var(--tebesir) 0 2px,transparent 2px calc(100% / 3.05));background-size:100% 10px,100% 18px;background-repeat:no-repeat}
.cetvel-dolgu{position:absolute;left:0;top:24px;height:4px;width:100%;background:var(--kerf);transform-origin:0 50%;transform:scaleX(var(--olc,0))}
.cetvel-sayi{position:absolute;left:0;top:34px;font-family:var(--f-dev);font-weight:800;font-size:clamp(1.6rem,1rem + 2vw,3rem);line-height:1;font-variant-numeric:tabular-nums}

/* bölüm geçişi (sahip 24 Eki: "keskin geçişlerde efekt"): zemin rengi değişen bölümün üst kenarında önceki bölümün
   rengi, giyotinle kesilmiş sac gibi eğik bir kenarla durur; bölüm ekrana girdikçe (--gir 0 → 1) kesik kenar yukarı çekilir.
   İnce turuncu çizgi kesim izidir, yalnız geçiş sürerken görünür. --onceki rengi sahne.js önceki bölümün zemininden yazar. */
.gecis{position:relative}
.gecis::before,.gecis::after{content:"";position:absolute;left:0;right:0;top:-1px;height:40vh;z-index:6;pointer-events:none}
/* kesik kenar: solda --kenar-sol, sağda --kenar-sag (bandın yüzdesi); --gir 0'da band neredeyse dolu, 1'de tamamen yukarıda */
.gecis{--kenar-sol:calc((1 - var(--gir,0)) * 130%);--kenar-sag:calc((1 - var(--gir,0)) * 130% - 60%)}
.gecis::before{background:var(--onceki);clip-path:polygon(0 0,100% 0,100% var(--kenar-sag),0 var(--kenar-sol))}
.gecis::after{background:var(--kerf);opacity:calc(min(var(--gir,0), 1 - var(--gir,0)) * 4);
  clip-path:polygon(0 var(--kenar-sol),100% var(--kenar-sag),100% calc(var(--kenar-sag) + 3px),0 calc(var(--kenar-sol) + 3px))}

/* 5b · iki kuşak: --k eski makinenin görünen payı (1 = tamamı eski, 0 = tamamı yeni) */
/* pinli: sahne ekranda durur, çizgi baştan sona kayınca sayfa akar (sahip 24 Eki: "makinenin yarısı yukarıda kalıyor") */
.kusak{position:relative;height:240vh;background:var(--hadde-3);color:var(--tebesir)}
.kusak-sahne{position:sticky;top:0;height:100svh;overflow:hidden;display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:clamp(24px,4vw,64px);
  padding:calc(var(--ust-h) + 24px) var(--kenar) 24px;align-items:center}
.kusak-metin p{margin-top:18px;font-size:var(--t-orta);color:#C9D1D6}
.kusak .buyuk{font-size:clamp(2.4rem,min(1.6rem + 4.4vw,11vh),5.6rem)}
/* iki makine tek bakışta: fotoğraf sahnenin yüksekliğine sığar (4:3) */
.kiyas{position:relative;margin:0 auto;width:min(100%,calc((100svh - var(--ust-h) - 48px) * 4 / 3));container-type:inline-size;aspect-ratio:4/3;overflow:hidden;touch-action:pan-y}
.kiyas img{width:100%;height:100%;object-fit:cover}
.kiyas>picture,.kiyas-eski{position:absolute;inset:0}
.kiyas-eski{clip-path:inset(0 calc((1 - var(--k,1)) * 100%) 0 0)}
.kiyas-cizgi{position:absolute;top:0;bottom:0;left:-1px;width:2px;background:var(--kerf);transform:translate3d(calc(var(--k,1) * 100cqw),0,0);pointer-events:none}
.kiyas-cizgi::after{content:"‹ ›";position:absolute;top:50%;left:1px;width:44px;height:44px;margin:-22px 0 0 -22px;border-radius:50%;background:var(--hadde-3);border:2px solid var(--kerf);
  color:var(--tebesir);font:700 20px/40px var(--f-metin);text-align:center;letter-spacing:2px}
.kiyas-etiket{position:absolute;top:16px;padding:6px 10px;background:rgba(22,33,42,.82);font-size:var(--t-kucuk);font-weight:600;letter-spacing:.04em;white-space:nowrap}
.kiyas-sol{left:16px;opacity:calc(.25 + var(--k,1) * .75)}
.kiyas-sag{right:16px;opacity:calc(1 - var(--k,1) * .75)}
.kiyas-surgu{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;margin:0}
.kiyas:has(.kiyas-surgu:focus-visible){outline:3px solid var(--kerf);outline-offset:4px}
@media (max-width:760px){.kiyas-etiket{top:10px;padding:4px 8px;font-size:12px}.kiyas-sol{left:10px}.kiyas-sag{right:10px}
  .kusak{height:200vh}
  .kusak-sahne{grid-template-columns:minmax(0,1fr);align-content:center;gap:20px}
  .kusak-metin p{font-size:1rem}}

/* 6 · giyotin: bıçak inişi */
.giyotin{position:relative;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(24px,4vw,64px);padding:clamp(80px,14vh,160px) var(--kenar);align-items:center;background:var(--galvaniz)}
.giyotin-foto{position:relative;overflow:hidden;clip-path:inset(0 0 calc((1 - var(--ac,0)) * 100%) 0)}
.giyotin-foto::after{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--tebesir);box-shadow:0 1px 6px rgba(0,0,0,.35);transform:translate3d(0,calc(var(--ac,0) * 100cqh),0);opacity:calc(1 - var(--ac,0))}
.giyotin-foto{container-type:size;aspect-ratio:1600/816}
.giyotin-foto img{width:100%;height:100%;object-fit:cover}
.giyotin-metin p{margin-top:18px}

/* 7 · atölye */
.atolye{background:var(--galvaniz-2);padding-bottom:clamp(80px,14vh,160px)}
.mozaik{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(10px,1.4vw,20px);padding:0 var(--kenar)}
.mozaik figure{grid-column:span 4;position:relative;overflow:hidden}
.mozaik .m-genis{grid-column:span 8;grid-row:span 2}
.mozaik img{width:100%;height:100%;object-fit:cover;aspect-ratio:3/2;transform:translate3d(0,calc(var(--py,0) * 1px),0) scale(1.16)}
.mozaik .m-genis img{aspect-ratio:auto}
.mozaik figcaption{position:absolute;left:12px;bottom:10px;color:#fff;font-size:var(--t-kucuk);font-weight:600;text-shadow:0 1px 6px rgba(0,0,0,.6)}
.park{padding:clamp(56px,10vh,110px) var(--kenar) 0;display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:24px 48px}
.park table{width:100%;border-collapse:collapse;border-top:2px solid var(--murekkep)}
.park th,.park td{text-align:left;padding:14px 0;border-bottom:1px solid rgba(20,32,42,.18);vertical-align:top}
.park thead th{font-size:var(--t-kucuk);color:#4d5963;font-weight:600}
.park td{font-weight:700;text-align:right;font-variant-numeric:tabular-nums}
.park-bas p{margin-top:12px;color:#4d5963}
.park th a{text-decoration:none}
.park th a:hover{text-decoration:underline;text-underline-offset:4px}
.bk{white-space:nowrap}

/* 8 · teklif */
.teklif{background:var(--galvaniz);padding-bottom:clamp(80px,14vh,160px)}
.form{margin:0 var(--kenar);display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:24px clamp(24px,4vw,64px);padding:clamp(24px,4vw,48px);background:#fff;border-top:6px solid var(--marka)}
/* legend, fieldset çerçevesine oturur ve Safari onu kutunun üst kenarına taşır; mutlak konumla her motorda kutunun içinde kalır */
.form-islem{min-width:0;position:relative;border:0;display:flex;flex-direction:column;gap:6px;padding:calc(20px + var(--t-h3) + 16px) 20px 20px;background:var(--hadde);color:var(--tebesir);align-self:start}
.form-islem legend{position:absolute;top:20px;left:20px;right:20px;padding:0;font-family:var(--f-baslik);font-weight:700;font-size:var(--t-h3);line-height:1}
.form-islem label{display:flex;align-items:center;gap:12px;min-height:44px;font-weight:600;border-bottom:1px dashed rgba(243,245,246,.25)}
.kanal{display:flex;flex-direction:column;gap:20px;align-self:center}
.kanal-bas{font-size:var(--t-orta);font-weight:700}
.kanal-adim{margin:0;padding-left:1.4em;display:grid;gap:8px;color:#3a4650}
.kanal-adim li::marker{font-family:var(--f-dev);font-weight:800;color:var(--marka)}
.kanal-dugmeler{display:flex;flex-wrap:wrap;gap:12px}
.kanal-dugmeler .dugme-cizgi{color:var(--marka)}
.kanal-tel{color:#3a4650}
.kanal-tel a{font-weight:700;color:var(--murekkep);white-space:nowrap}

/* 9 · iletişim */
.iletisim{position:relative;background:var(--hadde-3);color:var(--tebesir)}
.iletisim-foto img{width:100%;aspect-ratio:1920/670;object-fit:cover;opacity:.88}
.iletisim-metin{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:24px 48px;padding:clamp(48px,8vh,96px) var(--kenar)}
.iletisim-bas p{margin-top:16px;color:#C9D1D6}
.iletisim address{font-style:normal;font-size:var(--t-orta);margin-top:18px;color:#C9D1D6}
.kanallar{list-style:none;border-top:2px solid var(--tebesir);align-self:start}
.kanallar a{display:flex;justify-content:space-between;gap:16px;padding:16px 0;border-bottom:1px solid rgba(243,245,246,.18);text-decoration:none;font-weight:700;font-size:var(--t-orta)}
.kanallar a span{font-weight:400;color:var(--celik)}
.kanallar a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.alt{display:flex;align-items:center;gap:20px;padding:28px var(--kenar) 120px;background:var(--hadde-3);color:var(--celik);border-top:1px solid rgba(243,245,246,.12);font-size:var(--t-kucuk)}
.alt .logo-b{width:30px;height:29px;fill:var(--celik)}
.alt{flex-wrap:wrap}
.alt a{margin-left:auto}
/* yapımcı imzası (Ranova standardı, Gratis ile aynı): çerçeveli kart, ışıltılı logo, mavi geçişli ad, cümle, yuvarlak bağlantı */
.alt .ranova-imza{flex-basis:100%;display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:18px 28px;max-width:1180px;margin:20px auto 0;padding:12px 22px;
  border:1px solid rgba(25,211,255,.22);border-radius:14px;background:linear-gradient(180deg,rgba(243,245,246,.05),rgba(243,245,246,.015))}
.alt .ranova-imza a{margin-left:0}
.ranova-baglanti{display:inline-flex;align-items:center;gap:12px;color:inherit;text-decoration:none;border-radius:12px}
.ranova-baglanti img{width:36px;height:36px;filter:drop-shadow(0 0 14px rgba(0,180,255,.35))}
.ranova-yazi{display:grid;line-height:1.1;text-align:left}
.ranova-yazi small{font-size:10px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;color:rgba(243,245,246,.6)}
.ranova-yazi b{font-size:22px;font-weight:800;letter-spacing:.02em;background:linear-gradient(90deg,#2f6bff,#19d3ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.ranova-cumle{margin:0;flex:1 1 360px;max-width:560px;font-size:var(--t-kucuk);line-height:1.5;color:rgba(243,245,246,.72)}
.ranova-cumle span{display:block;margin-top:2px;color:var(--tebesir);font-weight:700}
.ranova-git{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 18px;border-radius:999px;border:1px solid rgba(25,211,255,.45);color:#8fe6ff;font-weight:700;text-decoration:none;white-space:nowrap;transition:background-color .2s ease,border-color .2s ease}
.ranova-git:hover{background:rgba(25,211,255,.1);border-color:rgba(25,211,255,.8)}

/* imza: iş emri fişi */
.fis{position:fixed;right:var(--kenar);bottom:24px;z-index:45;width:260px;background:var(--tebesir);color:var(--murekkep);box-shadow:0 18px 40px -12px rgba(10,20,28,.45);border-top:5px solid var(--marka);transform:translate3d(0,calc((1 - var(--fis,0)) * 140%),0);transition:transform .6s var(--egri)}
.fis[data-acik="false"] .fis-govde{display:none}
.fis-bas{display:flex;justify-content:space-between;align-items:center;gap:12px;width:100%;min-height:52px;padding:10px 16px;background:none;border:0;font:inherit;color:inherit;cursor:pointer;text-align:left}
.fis-bas::after{content:"";width:10px;height:10px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(-135deg) translate(-2px,-2px);transition:transform .3s var(--egri)}
.fis[data-acik="true"] .fis-bas::after{transform:rotate(45deg)}
.fis-ad{font-family:var(--f-baslik);font-weight:700;font-size:1.2rem}
.fis-sayi{font-size:var(--t-kucuk);color:#4d5963}
.fis-liste{list-style:none;padding:0 16px;background:repeating-linear-gradient(transparent 0 37px,rgba(20,32,42,.12) 37px 38px)}
.fis-liste li{display:none;justify-content:space-between;align-items:center;gap:10px;height:38px;font-size:.9rem}
.fis-liste li.yazildi{display:flex;animation:fis-yaz .45s var(--egri) both}
@keyframes fis-yaz{from{opacity:0;transform:translate3d(-8px,0,0)}}
.fis-liste label{display:flex;align-items:center;gap:8px;min-height:32px;cursor:pointer;font-weight:600}
.fis-liste b{font-family:var(--f-dev);font-size:1.1rem}
.fis-dugme{width:calc(100% - 32px);margin:12px 16px 16px}

/* telefon */
@media (max-width:1020px){
  .menu{display:none}
  .bolum-bas,.tezgah,.tezgah-plazma,.giyotin,.park,.iletisim-metin,.form{grid-template-columns:minmax(0,1fr)}
  .tezgah-plazma .olculu{order:0}
  .bukum-sahne{grid-template-columns:1fr;grid-template-rows:auto auto auto;align-content:center;gap:20px}
  .bukum-metin p{display:none}
}
@media (max-width:760px){
  :root{--ust-h:60px}
  .logo-b{width:32px;height:31px}
  .logo-yazi b{font-size:1.2rem}
  .logo-yazi small{display:none}
  .ust{gap:12px}
  .ust-dugme{margin-left:auto;min-height:40px;padding:0 14px}
  .giris{height:150vh}
  .giris-metin{width:100%}
  .giris-foto{clip-path:polygon(
    calc(var(--kenar) - var(--p,0) * var(--kenar)) calc(56% - var(--p,0) * 56%),
    calc(100% - var(--kenar) - 40px + var(--p,0) * (var(--kenar) + 40px)) calc(56% - var(--p,0) * 56%),
    calc(100% - var(--kenar) + var(--p,0) * var(--kenar)) calc(56% + 40px - var(--p,0) * (56% + 40px)),
    calc(100% - var(--kenar) + var(--p,0) * var(--kenar)) calc(100% - 150px + var(--p,0) * 150px),
    calc(var(--kenar) - var(--p,0) * var(--kenar)) calc(100% - 150px + var(--p,0) * 150px))}
  .olcu-seridi{grid-template-columns:repeat(3,auto);gap:12px 18px;padding-bottom:18px}
  .giris-metin .dev{font-size:clamp(1.9rem,8.2vw,2.6rem)}
  .giris-ozet{font-size:1.05rem;margin-top:16px}
  .eylem{margin-top:20px}
  .eylem .dugme-cizgi{display:none}
  .olcu-seridi dd{font-size:1.3rem}
  .kok{height:auto}
  .kok-sahne{position:relative;height:auto;padding:96px 0 72px}
  .kok-iz{flex-direction:column;width:auto;transform:none;gap:48px}
  .kok-durak,.kok-bugun{width:auto}
  .kok-durak .yil{color:var(--tebesir);-webkit-text-stroke-color:var(--tebesir)}
  .doruk{height:300vh}
  .doruk-metin{width:auto;right:var(--kenar);bottom:96px}
  .cnc{top:calc(var(--ust-h) + 34px);left:var(--kenar);right:var(--kenar);width:auto}
  .cnc dl{display:grid;grid-template-columns:auto auto 1fr;gap:0 18px}
  .cnc dl div{display:block;border:0;padding:0}
  .cnc dd span{font-size:1.1rem}
  .ipucu-buyuk{font-size:clamp(2.2rem,9vw,2.8rem)}
  .ipucu-3 .ipucu-buyuk{font-size:clamp(1.9rem,8vw,2.5rem)}
  .ipucu-3{bottom:56px}
  .park thead{display:none}
  .park tbody tr{display:block;padding:12px 0;border-bottom:1px solid rgba(20,32,42,.18)}
  .park tbody th,.park tbody td{display:block;padding:0;border:0;text-align:left}
  .park tbody td{margin-top:4px}
  .bukum{height:220vh}
  .kapi{height:200vh}
  .kapi-metin{right:var(--kenar);padding:16px 18px}
  .cetvel-cizgiler{background-size:100% 8px,100% 14px}
  .mozaik figure,.mozaik .m-genis{grid-column:span 12;grid-row:auto}
  .mozaik figure:nth-child(n+2){grid-column:span 6}
  .fis{left:12px;right:12px;width:auto;bottom:12px}
  .alt{flex-wrap:wrap;padding-bottom:110px}
  .alt .ranova-imza{flex-wrap:wrap;justify-content:space-between;gap:10px 6px;padding:10px 12px}
  .ranova-cumle{order:3;flex:1 1 100%;text-align:center}
  .ranova-baglanti{gap:8px;min-width:0} .ranova-baglanti img{width:28px;height:28px}
  .ranova-yazi small{font-size:8px;letter-spacing:.06em} .ranova-yazi b{font-size:17px}
  .ranova-git{padding:0 10px;font-size:13px;gap:6px}
}

/* hareketi azalt: her sahne son hâlinde, pin yok */
@media (prefers-reduced-motion:reduce){
  .giris,.kok,.doruk,.bukum,.kapi,.kusak{height:auto}
  .gecis::before,.gecis::after{display:none}
  .kusak-sahne{position:relative;height:auto;padding-top:96px;padding-bottom:96px}
  .kapi-sahne{position:relative;height:80vh}
  .kapi-foto img{transform:none}
  .kapi-sahne::after{display:none}
  .kapi-metin{opacity:1;transform:none}
  .giris-sahne,.giris-metin,.giris-foto,.kok-sahne,.doruk-sahne,.bukum-sahne,.olcu-seridi{position:relative;top:auto;bottom:auto;margin-top:0}
  .giris-sahne{height:auto}
  .giris-foto{height:60vh;clip-path:none;margin:24px 0}
  .giris-metin,.olcu-seridi{transform:none;opacity:1}
  .olcu-seridi{padding-bottom:48px}
  .kok-sahne{height:auto;overflow:visible;justify-content:flex-start;padding:96px 0 72px}
  .kok-iz{flex-wrap:wrap;width:auto;transform:none;row-gap:48px}
  .doruk-sahne{height:100svh}
  .doruk{--kes:1;--dus:1}
  .portal,.tasiyici,.kilavuz,.levha-cetvel,.kivilcim-tuval,.levha-isik,.cnc{display:none}
  .ipucu{opacity:0}.ipucu-3{opacity:1;transform:none}
  .olculu,.giyotin-foto,.bukum-foto{clip-path:none}
  .olculu img{transform:none}
  .isaret{--ciz:1 !important}
  .cetvel-dolgu{transform:none}
  .mozaik img{transform:none}
  .fis,.fis-liste li{transition:none;animation:none}
}