/* ==========================================================================
   TAMBA İnşaat - kurumsal site
   Sakin, yapısal, editoryal. Referans alınan site yok; tipografi + palet
   markanın kendi DESIGN-DNA.json'ından (filmden örneklenmiş).
   Dark-locked. Tek aksan: brass. Yarıçap: 0 (yalnız CTA pill).
   Hareket: yalnızca scroll-reveal (INTENSITY 4). reduced-motion tam kapatır.
   ========================================================================== */

/* ---- fonts (self-hosted, public/fonts) --------------------------------- */
@font-face{
  font-family:"Archivo";font-style:normal;font-weight:100 900;font-stretch:62% 125%;font-display:swap;
  src:url("public/fonts/archivo-var-latin.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face{
  font-family:"Archivo";font-style:normal;font-weight:100 900;font-stretch:62% 125%;font-display:swap;
  src:url("public/fonts/archivo-var-latinext.woff2") format("woff2");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face{
  font-family:"Plex Mono";font-style:normal;font-weight:400;font-display:swap;
  src:url("public/fonts/plexmono-400-latin.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face{
  font-family:"Plex Mono";font-style:normal;font-weight:400;font-display:swap;
  src:url("public/fonts/plexmono-400-latinext.woff2") format("woff2");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face{
  font-family:"Plex Mono";font-style:normal;font-weight:500;font-display:swap;
  src:url("public/fonts/plexmono-500-latin.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face{
  font-family:"Plex Mono";font-style:normal;font-weight:500;font-display:swap;
  src:url("public/fonts/plexmono-500-latinext.woff2") format("woff2");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}

/* Cormorant Garamond — Sobha'nın başlık fontu TT Ramillas (ücretli) yerine en yakın
   ücretsiz yüksek kontrastlı serif. Yalnız başlıklar; gövde Archivo, etiket Plex Mono. */
@font-face{font-family:"Cormorant";font-style:normal;font-weight:300;font-display:swap;
  src:url("public/fonts/cormorant-garamond-latin-300-normal.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Cormorant";font-style:normal;font-weight:300;font-display:swap;
  src:url("public/fonts/cormorant-garamond-latin-ext-300-normal.woff2") format("woff2");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Cormorant";font-style:normal;font-weight:400;font-display:swap;
  src:url("public/fonts/cormorant-garamond-latin-400-normal.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Cormorant";font-style:normal;font-weight:400;font-display:swap;
  src:url("public/fonts/cormorant-garamond-latin-ext-400-normal.woff2") format("woff2");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Cormorant";font-style:italic;font-weight:300;font-display:swap;
  src:url("public/fonts/cormorant-garamond-latin-300-italic.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Cormorant";font-style:italic;font-weight:300;font-display:swap;
  src:url("public/fonts/cormorant-garamond-latin-ext-300-italic.woff2") format("woff2");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Cormorant";font-style:italic;font-weight:400;font-display:swap;
  src:url("public/fonts/cormorant-garamond-latin-400-italic.woff2") format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Cormorant";font-style:italic;font-weight:400;font-display:swap;
  src:url("public/fonts/cormorant-garamond-latin-ext-400-italic.woff2") format("woff2");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}

/* ---- tokens ---------------------------------------------------------------- */
:root{
  --serif:"Cormorant","Cormorant Garamond",Georgia,"Times New Roman",serif;
  --ease-expo:cubic-bezier(.16,1,.3,1);   /* expo.out — Sobha ana geçiş */
  --ease-p2:cubic-bezier(.33,1,.68,1);    /* power2.out — harf/mikro */
  --ease-p2io:cubic-bezier(.45,0,.55,1);  /* power2.inOut — header */
  --ink:#0A0D0F;          /* sayfa zemini */
  --ink-2:#0E1215;        /* bölüm tonlaması */
  --graphite:#151A1E;     /* yüzey / kart */
  --hair:rgba(232,228,220,.14);
  --hair-2:rgba(232,228,220,.08);
  --limestone:#E8E4DC;    /* birincil metin */
  --concrete:#9AA2A6;     /* ikincil metin */
  --concrete-dim:#6C7378; /* üçüncül / mono etiket */
  --brass:#B8925E;        /* TEK aksan - CTA, vurgu */
  --brass-hi:#caa676;
  --signal:#7FB6C4;       /* yalnız teknik sayılar (spec) */

  --measure:66ch;
  --pad-x:clamp(20px,5vw,72px);
  --maxw:1360px;

  --step-display:clamp(2.6rem,6.4vw,6rem);
  --step-h2:clamp(1.9rem,3.4vw,3rem);
  --step-h3:clamp(1.15rem,1.5vw,1.45rem);
  --step-body:clamp(1rem,1.05vw,1.15rem);
  --step-mono:clamp(.7rem,.8vw,.78rem);

  --ease:cubic-bezier(.16,1,.3,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;overflow-x:clip}
body{
  background:var(--ink);
  color:var(--concrete);
  font-family:"Archivo","Helvetica Neue",Arial,sans-serif;
  font-weight:400;
  font-size:var(--step-body);
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
  overflow-x:clip;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:var(--brass);color:var(--ink)}

.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad-x)}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* skip link */
.skip{position:fixed;top:8px;left:8px;z-index:200;background:var(--limestone);color:var(--ink);
  padding:.6em 1em;font:500 var(--step-mono)/1 "Plex Mono",monospace;letter-spacing:.12em;text-transform:uppercase;
  transform:translateY(-160%);transition:transform .2s}
.skip:focus{transform:none}

/* ---- type roles --------------------------------------------------------- */
.display{
  font-family:var(--serif);font-weight:300;
  font-size:calc(var(--step-display) * 1.12);line-height:.98;letter-spacing:-.01em;
  color:var(--limestone);text-wrap:balance;
}
.h2{
  font-family:var(--serif);font-weight:300;
  font-size:calc(var(--step-h2) * 1.22);line-height:1.02;letter-spacing:-.005em;
  color:var(--limestone);max-width:20ch;text-wrap:balance;
}
/* Sobha kompozisyonu: italik küçük harf + düz büyük harf vurgu ("The art OF THE SUBLIME") */
.display em,.h2 em,.hero__title em{font-style:italic;font-weight:300}
.caps{text-transform:uppercase;letter-spacing:.02em}
.h3{font-family:"Archivo";font-weight:400;font-size:var(--step-h3);line-height:1.2;letter-spacing:-.01em;color:var(--limestone)}
.lead{font-size:clamp(1.05rem,1.3vw,1.3rem);color:var(--limestone);max-width:var(--measure);line-height:1.5}
.body{color:var(--concrete);max-width:var(--measure)}
.kicker{
  display:inline-block;font:500 var(--step-mono)/1 "Plex Mono",monospace;
  letter-spacing:.2em;text-transform:uppercase;color:var(--concrete-dim);
}

/* ---- buttons ---------------------------------------------------------------- */
.btn{
  --bg:var(--brass);--fg:var(--ink);
  display:inline-flex;align-items:center;gap:.7em;
  padding:.95em 1.5em;border-radius:999px;
  font:500 var(--step-mono)/1 "Plex Mono",monospace;letter-spacing:.14em;text-transform:uppercase;white-space:nowrap;
  background:var(--bg);color:var(--fg);
  transition:background .25s var(--ease),transform .15s var(--ease);
}
.btn:hover{background:var(--brass-hi)}
.btn:active{transform:translateY(1px)}
.btn--ghost{
  --bg:transparent;--fg:var(--limestone);
  border:1px solid var(--hair);padding:.9em 1.5em;
}
.btn--ghost:hover{background:rgba(232,228,220,.06)}
.btn:focus-visible,a:focus-visible{outline:2px solid var(--brass);outline-offset:3px}

/* text link with rule */
.tlink{display:inline-flex;align-items:center;gap:.6em;color:var(--limestone);
  font:500 var(--step-mono)/1 "Plex Mono",monospace;letter-spacing:.14em;text-transform:uppercase}
.tlink::after{content:"";width:28px;height:1px;background:var(--brass);transition:width .25s var(--ease)}
.tlink:hover::after{width:44px}

/* ---- header ----------------------------------------------------------------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:100;
  height:68px;display:flex;align-items:center;
  background:linear-gradient(var(--ink),rgba(10,13,15,0));
  transition:background .3s;
}
.site-header.is-stuck{background:rgba(10,13,15,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--hair-2)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;width:100%}
.wordmark{font-family:"Archivo";font-weight:300;font-stretch:118%;font-size:1.35rem;letter-spacing:.14em;color:var(--limestone)}
.nav{display:flex;align-items:center;gap:2.2rem}
.nav a:not(.btn){font:500 var(--step-mono)/1 "Plex Mono",monospace;letter-spacing:.12em;text-transform:uppercase;color:var(--concrete);transition:color .2s}
.nav a:not(.btn):hover{color:var(--limestone)}
.nav .btn{padding:.7em 1.2em}
.nav-toggle{display:none}
@media (max-width:820px){
  .nav a:not(.btn){display:none}
  .nav{gap:1rem}
}

/* ---- section rhythm --------------------------------------------------------- */
.section{padding-block:clamp(88px,13vh,168px)}
.section--tint{background:var(--ink-2)}
.section + .section{border-top:1px solid var(--hair-2)}

/* ---- hero — sticky video + scroll-driven karşılama ----------------------- */
.hero{position:relative;height:180vh;background:var(--ink)}
.hero__viewport{
  position:sticky;top:0;height:100dvh;overflow:hidden;
  transform-origin:50% 42%;will-change:transform,filter;
  background:var(--graphite);
}
.hero__video{position:absolute;inset:0}
.hero__video video{width:100%;height:100%;object-fit:cover;display:block}
.hero__scrim{
  position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(90deg,rgba(10,13,15,.82) 0%,rgba(10,13,15,.32) 46%,rgba(10,13,15,.12) 100%),
    linear-gradient(0deg,rgba(10,13,15,.78) 0%,rgba(10,13,15,0) 44%);
}
.hero__content{
  position:absolute;left:0;right:0;bottom:clamp(64px,12vh,120px);
  will-change:transform,opacity;
}
.hero__title{
  font-family:var(--serif);font-weight:300;
  font-size:clamp(2.9rem,6.2vw,6.2rem);line-height:.96;letter-spacing:-.01em;
  color:var(--limestone);
}
.hero__title .line{display:block;overflow:hidden;padding-bottom:.06em}
.hero__title .line > span{display:block;transform:translateY(110%)}
.hero__sub{margin-top:1.5rem;max-width:52ch;color:var(--limestone)}
.hero__actions{margin-top:2rem;display:flex;flex-wrap:wrap;gap:14px}
.hero__label{
  margin-top:2.4rem;font:500 var(--step-mono)/1 "Plex Mono",monospace;
  letter-spacing:.2em;text-transform:uppercase;color:var(--concrete-dim);
}
/* Hero girişi preloader perdesi kalkarken başlar (html.is-ready).
   Sobha span.char ölçümü: op 0→1, ty 25.5→0 px, rot 2°→0, power1.out ~1.28 s,
   harfler arası ~18 ms. */
.hero__title .line{overflow:visible}
.hero__title .line > span{transform:none}
.hero__title .hw{display:inline-block;white-space:nowrap}
.hero__title .hc{display:inline-block;transform-origin:0 100%}
@media (prefers-reduced-motion:no-preference){
  html.js .hero__title .hc{opacity:0;transform:translateY(25.5px) rotate(2deg)}
  html.js.is-ready .hero__title .hc{
    animation:heroChar 1.28s cubic-bezier(.5,1,.89,1) both;
    animation-timing-function:linear(0 0%, 0.0816 4.17%, 0.1597 8.33%, 0.2344 12.5%, 0.3056 16.67%, 0.3733 20.83%, 0.4375 25%, 0.4983 29.17%, 0.5556 33.33%, 0.6094 37.5%, 0.6597 41.67%, 0.7066 45.83%, 0.75 50%, 0.7899 54.17%, 0.8264 58.33%, 0.8594 62.5%, 0.8889 66.67%, 0.9149 70.83%, 0.9375 75%, 0.9566 79.17%, 0.9722 83.33%, 0.9844 87.5%, 0.9931 91.67%, 0.9983 95.83%, 1 100%); /* power1.out birebir (linear() yoksa üstteki yaklaşık) */
    animation-delay:calc(.2s + var(--c,0) * 18ms);
  }
  html.js .hero__sub,html.js .hero__actions,html.js .hero__label{opacity:0;transform:translateY(18px)}
  html.js.is-ready .hero__sub,html.js.is-ready .hero__actions,html.js.is-ready .hero__label{
    animation:heroFadeUp 1s var(--ease-expo) forwards;
  }
  html.js.is-ready .hero__sub{animation-delay:.55s}
  html.js.is-ready .hero__actions{animation-delay:.65s}
  html.js.is-ready .hero__label{animation-delay:.75s}
}
@media (prefers-reduced-motion:reduce){
  .hero__title .line > span{transform:none}
}

/* ---- preloader — yüzde sayacı + ilerleme çizgisi, sonra perde yukarı kalkar
   (Sobha: div.preloader__progress expo.out ~1.8 s; perde expo.out ~1.05 s) */
.preloader{display:none}
@media (prefers-reduced-motion:no-preference){
  html.js .preloader{
    display:flex;position:fixed;inset:0;z-index:300;background:var(--ink);
    flex-direction:column;justify-content:flex-end;
    padding:var(--pad-x);padding-bottom:clamp(40px,8vh,88px);
    clip-path:inset(0 0 0 0);
    transition:clip-path 1.05s var(--ease-expo);
    transition-timing-function:linear(0 0%, 0.1591 2.5%, 0.2929 5%, 0.4054 7.5%, 0.5 10%, 0.5796 12.5%, 0.6464 15%, 0.7027 17.5%, 0.75 20%, 0.7898 22.5%, 0.8232 25%, 0.8513 27.5%, 0.875 30%, 0.8949 32.5%, 0.9116 35%, 0.9257 37.5%, 0.9375 40%, 0.9474 42.5%, 0.9558 45%, 0.9628 47.5%, 0.9688 50%, 0.9737 52.5%, 0.9779 55%, 0.9814 57.5%, 0.9844 60%, 0.9869 62.5%, 0.989 65%, 0.9907 67.5%, 0.9922 70%, 0.9934 72.5%, 0.9945 75%, 0.9954 77.5%, 0.9961 80%, 0.9967 82.5%, 0.9972 85%, 0.9977 87.5%, 0.998 90%, 0.9984 92.5%, 0.9986 95%, 0.9988 97.5%, 1 100%);
  }
  html.js .preloader.is-done{clip-path:inset(0 0 100% 0)}
  html.js .preloader.is-gone{display:none}
}
.preloader__row{display:flex;align-items:flex-end;justify-content:space-between;gap:2rem}
.preloader__word{font-family:var(--serif);font-weight:300;font-style:italic;
  font-size:clamp(1.4rem,2.2vw,2rem);color:var(--concrete)}
.preloader__pct{font-family:var(--serif);font-weight:300;line-height:.8;
  font-size:clamp(5rem,15vw,13rem);color:var(--limestone);font-variant-numeric:lining-nums tabular-nums;font-feature-settings:"lnum","tnum";letter-spacing:-.02em}
.preloader__pct small{font-size:.32em;margin-left:.08em;vertical-align:top;color:var(--concrete)}
.preloader__bar{margin-top:clamp(20px,3vh,32px);height:1px;background:var(--hair)}
.preloader__bar span{display:block;height:100%;background:var(--brass);transform-origin:0 50%;transform:scaleX(0)}
@keyframes heroLineUp{from{transform:translateY(110%)}to{transform:translateY(0)}}
@keyframes heroChar{to{opacity:1;transform:none}}
/* Sobha iki aşamalı belirme (l-expansive-card__video-title/-text) — İKİ AYRI TETİK:
   1. tetik: op 0→0.522 expo.out 1076 ms · 2. tetik (sonraki kaydırma adımı): 0.522→1 circ.out 824 ms.
   Ölçümde iki aşama farklı kaydırma adımlarında (tek zincir değil). linear() = eğrinin birebir hali;
   desteklemeyen tarayıcıda üstteki cubic-bezier yaklaşığı kalır. */
@keyframes heroFadeUp{to{opacity:1;transform:none}}
@media (max-width:640px){
  .hero{height:160vh}
  .hero__content{bottom:clamp(40px,10vh,80px)}
}

/* Lenis güvenli sıfırlamalar */
html.lenis,html.lenis body{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto !important}
.lenis.lenis-stopped{overflow:hidden}

/* ---- yöntem — Sobha maske açılışı (l-expansive-card) ----------------------
   JS her karede --s (kart ölçeği 1/3→1), --vs (video ölçeği 1.25→1),
   --cx (yatay kırpma 26.66%→0), --io (giriş metni opaklığı), --to (başlık) yazar.
   Varsayılanlar = başlangıç hali; JS/hareket yoksa aşağıdaki reduce bloğu tam hali verir. */
.expand{position:relative;height:340vh;background:var(--ink)}
.expand__sticky{position:sticky;top:0;height:100dvh;overflow:hidden}
.expand__card{
  position:absolute;inset:0;transform:scale(var(--s,.3333));transform-origin:50% 50%;
  will-change:transform;
}
.expand__media{
  position:absolute;inset:0;overflow:hidden;background:var(--graphite);
  clip-path:inset(0% var(--cx,26.66%));will-change:clip-path;
}
.expand__media video{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transform:scale(var(--vs,1.25));will-change:transform;
}
.expand__scrim{
  position:absolute;inset:0;pointer-events:none;opacity:var(--to,0);
  background:
    linear-gradient(0deg,rgba(10,13,15,.86) 0%,rgba(10,13,15,.35) 42%,rgba(10,13,15,.05) 70%),
    linear-gradient(90deg,rgba(10,13,15,.55) 0%,rgba(10,13,15,0) 55%);
}
/* sütunun yan fotoğrafları — dikey, sütundan küçük; sol biraz aşağıda, sağ biraz yukarıda.
   --io ile yanlara kayar ve söner; kart (DOM'da sonra) büyürken üstlerini örter. */
.expand__side{
  position:absolute;top:50%;margin:0;width:clamp(120px,11.5vw,190px);aspect-ratio:3/4;
  background:var(--graphite);opacity:var(--io,1);will-change:transform,opacity;
}
.expand__side img{width:100%;height:100%;object-fit:cover}
.expand__side figcaption{
  position:absolute;left:0;top:calc(100% + 10px);
  font:500 var(--step-mono)/1 "Plex Mono",monospace;letter-spacing:.18em;text-transform:uppercase;color:var(--concrete-dim);
}
.expand__side--l{
  right:calc(50% + 7.8vw + clamp(28px,3.2vw,56px));
  transform:translate(calc((1 - var(--io,1)) * -140px),-38%);
}
.expand__side--l img{object-position:42% 50%}
.expand__side--r{
  left:calc(50% + 7.8vw + clamp(28px,3.2vw,56px));
  transform:translate(calc((1 - var(--io,1)) * 140px),-62%);
}
.expand__side--r img{object-position:55% 50%}
.expand__intro{
  position:absolute;left:0;right:0;z-index:2;text-align:center;pointer-events:none;
  font-family:var(--serif);font-weight:300;line-height:1;color:var(--limestone);
  font-size:clamp(2.2rem,4.6vw,4.4rem);opacity:var(--io,1);
}
.expand__intro--top{bottom:calc(50% + 16.67vh + clamp(14px,2vh,24px));transform:translateY(calc((1 - var(--io,1)) * -40px))}
.expand__intro--bottom{top:calc(50% + 16.67vh + clamp(14px,2vh,24px));transform:translateY(calc((1 - var(--io,1)) * 40px))}
.expand__copy{
  position:absolute;left:0;right:0;bottom:clamp(48px,11vh,110px);z-index:2;
  opacity:0;transition:opacity .45s var(--ease-p2io);
}
/* açılışın yarısı geçince tetiklenir (kaydırmaya bağlı değil, zamanla oynar) */
.expand.is-on .expand__copy{opacity:.522;transition:opacity 1.076s cubic-bezier(.16,1,.3,1);transition-timing-function:linear(0 0%, 0.1591 2.5%, 0.2929 5%, 0.4054 7.5%, 0.5 10%, 0.5796 12.5%, 0.6464 15%, 0.7027 17.5%, 0.75 20%, 0.7898 22.5%, 0.8232 25%, 0.8513 27.5%, 0.875 30%, 0.8949 32.5%, 0.9116 35%, 0.9257 37.5%, 0.9375 40%, 0.9474 42.5%, 0.9558 45%, 0.9628 47.5%, 0.9688 50%, 0.9737 52.5%, 0.9779 55%, 0.9814 57.5%, 0.9844 60%, 0.9869 62.5%, 0.989 65%, 0.9907 67.5%, 0.9922 70%, 0.9934 72.5%, 0.9945 75%, 0.9954 77.5%, 0.9961 80%, 0.9967 82.5%, 0.9972 85%, 0.9977 87.5%, 0.998 90%, 0.9984 92.5%, 0.9986 95%, 0.9988 97.5%, 1 100%)}
.expand.is-on.is-full .expand__copy{opacity:1;transition:opacity .824s cubic-bezier(0,.55,.45,1);transition-timing-function:linear(0 0%, 0.2857 4.17%, 0.3997 8.33%, 0.4841 12.5%, 0.5528 16.67%, 0.611 20.83%, 0.6614 25%, 0.7059 29.17%, 0.7454 33.33%, 0.7806 37.5%, 0.8122 41.67%, 0.8406 45.83%, 0.866 50%, 0.8888 54.17%, 0.9091 58.33%, 0.927 62.5%, 0.9428 66.67%, 0.9565 70.83%, 0.9682 75%, 0.9781 79.17%, 0.986 83.33%, 0.9922 87.5%, 0.9965 91.67%, 0.9991 95.83%, 1 100%)}
.expand__copy{text-align:center}
.expand__title{margin:.9rem 0 1.4rem;max-width:none}
.expand__text{max-width:50ch;margin-inline:auto}
@media (max-width:640px){
  .expand{height:280vh}
  .expand__intro{font-size:clamp(1.7rem,8vw,2.2rem);padding-inline:16px}
  .expand__side{width:22vw}
  .expand__side--l{right:calc(50% + 15vw + 10px)}
  .expand__side--r{left:calc(50% + 15vw + 10px)}
  .expand__side figcaption{font-size:.6rem;letter-spacing:.12em}
  .expand__intro--top{bottom:calc(50% + 25vh + 14px)}
  .expand__intro--bottom{top:calc(50% + 25vh + 14px)}
}
@media (prefers-reduced-motion:reduce){
  .expand{height:auto}
  .expand__sticky{position:relative;height:auto;overflow:visible;display:flex;flex-direction:column}
  .expand__side{display:none}
  .expand__intro{position:static;opacity:1;transform:none;padding-block:clamp(32px,6vh,64px) 0}
  .expand__intro--bottom{order:0;padding-block:.3em clamp(32px,6vh,64px)}
  .expand__card{position:relative;height:100svh;transform:none;order:1}
  .expand__media{clip-path:none}
  .expand__media video{transform:none}
  .expand__scrim{opacity:1}
  .expand__copy{opacity:1;transform:none;bottom:clamp(40px,8vh,80px)}
}

/* ---- galeri — Sobha "The three WORLDS" kavisli yol (CSS 3D silindir) --------
   JS her kart için --x, --z, --ry, --o yazar. Eğrilik (yarıçap) Sobha karelerinden
   görsel tahmin; kayma kaydırmaya bağlı (ölçülen gl:pathOffset gibi). */
.curve{position:relative;height:420vh;background:var(--ink)}
.curve__sticky{position:sticky;top:0;height:100dvh;overflow:hidden;display:grid;place-items:center}
.curve__title{
  position:absolute;left:0;right:0;top:clamp(84px,13vh,140px);z-index:3;text-align:center;pointer-events:none;
  font-family:var(--serif);font-weight:300;line-height:.9;color:var(--limestone);
  font-size:clamp(3rem,8.4vw,8.4rem);letter-spacing:-.005em;
}
.curve__title em{display:block;font-size:.62em;font-style:italic}
.curve__stage{position:absolute;inset:0;perspective:1500px;perspective-origin:50% 45%}
.curve__track{list-style:none;position:absolute;left:50%;top:58%;width:0;height:0;transform-style:preserve-3d}
.curve__card{
  --w:min(44vw,660px);
  position:absolute;left:calc(var(--w) / -2);top:calc(var(--w) * -.29);
  width:var(--w);aspect-ratio:16/9.2;background:var(--graphite);
  transform:translate3d(var(--x,0px),0,var(--z,0px)) rotateY(var(--ry,0deg));
  opacity:var(--o,1);backface-visibility:hidden;will-change:transform,opacity;
}
.curve__card img{width:100%;height:100%;object-fit:cover}
.curve__card span{
  position:absolute;left:0;top:calc(100% + 14px);
  font:500 var(--step-mono)/1 "Plex Mono",monospace;letter-spacing:.18em;text-transform:uppercase;color:var(--concrete-dim);
}
.curve__count{
  position:absolute;left:0;right:0;bottom:clamp(28px,6vh,56px);text-align:center;
  font:500 var(--step-mono)/1 "Plex Mono",monospace;letter-spacing:.2em;color:var(--concrete)
}
.curve__count span{color:var(--brass)}
@media (max-width:820px){
  .curve{height:360vh}
  .curve__card{--w:84vw;aspect-ratio:4/5}
  .curve__card{top:calc(var(--w) * -.62)}
  .curve__track{top:58%}
  .curve__stage{perspective:900px}
  .curve__title{font-size:clamp(3.4rem,17vw,5rem)}
}
@media (prefers-reduced-motion:reduce){
  .curve{height:auto;padding-block:clamp(88px,13vh,168px)}
  .curve__sticky{position:relative;height:auto;overflow:visible;display:block}
  .curve__title{position:static;margin-bottom:clamp(32px,5vw,64px)}
  .curve__stage{position:static;perspective:none}
  .curve__track{position:static;width:auto;height:auto;display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
    gap:clamp(20px,3vw,40px) 20px;padding-inline:var(--pad-x);max-width:var(--maxw);margin-inline:auto}
  .curve__card{position:relative;left:auto;top:auto;width:auto;transform:none;opacity:1;margin-bottom:2rem}
  .curve__count{display:none}
}

/* ---- positioning (vertical stack) ---------------------------------------- */
.stack .h2{margin-bottom:1.4rem}
.stack .body{font-size:clamp(1.05rem,1.25vw,1.25rem);line-height:1.55}

/* ---- projeler ----------------------------------------------------------------- */
.projects{display:grid;gap:clamp(72px,10vw,140px)}
.project{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(28px,4vw,64px);align-items:center}
.project:nth-child(even) .project__media{order:2}
.project__media{aspect-ratio:16/11;overflow:hidden;background:var(--graphite)}
.project__media img{width:100%;height:100%;object-fit:cover}
.project__name{margin:.6rem 0 1rem}
.project__desc{max-width:52ch}
.spec{
  margin-top:2rem;padding-top:1.4rem;border-top:1px solid var(--hair);
  display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem 2rem;
}
.spec div{display:flex;flex-direction:column;gap:.35rem}
.spec dt{font:500 var(--step-mono)/1 "Plex Mono",monospace;letter-spacing:.16em;text-transform:uppercase;color:var(--concrete-dim)}
.spec dd{font-family:"Archivo";font-weight:300;font-stretch:108%;font-size:1.05rem;line-height:1.3;color:var(--limestone)}
@media (max-width:820px){
  .project{grid-template-columns:1fr}
  .project:nth-child(even) .project__media{order:0}
}

/* ---- donanım (2-col grid) ------------------------------------------------- */
.kit-head{max-width:30ch;margin-bottom:clamp(40px,6vw,72px)}
.kit-head{max-width:none}
.kit-head .h2{max-width:17ch}
.kit{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--hair);border-block:1px solid var(--hair)}
.kit__item{background:var(--ink-2);padding:clamp(24px,3vw,44px);display:flex;flex-direction:column;gap:.9rem;min-height:210px}
.kit__item .num{font:500 var(--step-mono)/1 "Plex Mono",monospace;letter-spacing:.16em;color:var(--concrete-dim)}
.kit__item .h3{margin-top:.2rem}
.kit__item p{color:var(--concrete);max-width:40ch}
@media (prefers-reduced-motion:no-preference){
  html.js .kit__item{opacity:0}
  html.js .kit__item{transform:translateY(24px)}
  html.js .kit__item.in{opacity:.522;transform:none;
    transition:opacity 1.076s cubic-bezier(.16,1,.3,1),transform 1.076s cubic-bezier(.16,1,.3,1);
    transition-timing-function:linear(0 0%, 0.1591 2.5%, 0.2929 5%, 0.4054 7.5%, 0.5 10%, 0.5796 12.5%, 0.6464 15%, 0.7027 17.5%, 0.75 20%, 0.7898 22.5%, 0.8232 25%, 0.8513 27.5%, 0.875 30%, 0.8949 32.5%, 0.9116 35%, 0.9257 37.5%, 0.9375 40%, 0.9474 42.5%, 0.9558 45%, 0.9628 47.5%, 0.9688 50%, 0.9737 52.5%, 0.9779 55%, 0.9814 57.5%, 0.9844 60%, 0.9869 62.5%, 0.989 65%, 0.9907 67.5%, 0.9922 70%, 0.9934 72.5%, 0.9945 75%, 0.9954 77.5%, 0.9961 80%, 0.9967 82.5%, 0.9972 85%, 0.9977 87.5%, 0.998 90%, 0.9984 92.5%, 0.9986 95%, 0.9988 97.5%, 1 100%);transition-delay:calc(var(--k,0) * 120ms)}
  html.js .kit__item.in.in2{opacity:1;transition:opacity .824s cubic-bezier(0,.55,.45,1);transition-timing-function:linear(0 0%, 0.2857 4.17%, 0.3997 8.33%, 0.4841 12.5%, 0.5528 16.67%, 0.611 20.83%, 0.6614 25%, 0.7059 29.17%, 0.7454 33.33%, 0.7806 37.5%, 0.8122 41.67%, 0.8406 45.83%, 0.866 50%, 0.8888 54.17%, 0.9091 58.33%, 0.927 62.5%, 0.9428 66.67%, 0.9565 70.83%, 0.9682 75%, 0.9781 79.17%, 0.986 83.33%, 0.9922 87.5%, 0.9965 91.67%, 0.9991 95.83%, 1 100%)}
}

/* ---- idea (Sobha "The idea"): büyük serif büyük harf metin sütunu + eğik görsel.
   Görselin eğimi Sobha son ölçüm karesinden (~-26°) tahmin; kaydırmada -26°→-8°
   döner ve yavaş yükselir (dönüş eğrisi ölçülmedi — tahmin). */
.idea{position:relative;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:clamp(32px,5vw,80px);align-items:center;margin-bottom:clamp(64px,10vw,140px)}
.idea__text{
  font-family:var(--serif);font-weight:300;text-transform:uppercase;letter-spacing:.01em;
  font-size:clamp(1.9rem,2.9vw,2.9rem);line-height:1.08;color:var(--limestone);max-width:20ch;
}
.idea__text em{text-transform:none;font-style:italic}
.idea__media{position:relative;width:100%;aspect-ratio:4/3}
.idea__tilt{position:absolute;inset:0;overflow:hidden;background:var(--graphite)}
.idea__tilt img{width:100%;height:100%;object-fit:cover;transform:translateY(var(--iy,0px)) scale(1.14);will-change:transform}
.idea__cap{position:absolute;left:0;bottom:-2rem;font:500 var(--step-mono)/1 "Plex Mono",monospace;
  letter-spacing:.18em;text-transform:uppercase;color:var(--concrete-dim)}
@media (max-width:820px){
  .idea{grid-template-columns:1fr}
  .idea__media{margin-top:1rem}
}
@media (prefers-reduced-motion:reduce){
  .idea__tilt img{transform:scale(1.14)}
}
@media (max-width:720px){.kit{grid-template-columns:1fr}}

/* ---- güven — pinned görsel + değişen argüman (yapı ilerledikçe iddia da kurulur) */
.trust__lead{margin-bottom:clamp(44px,7vw,88px);max-width:18ch;font-size:clamp(2.2rem,4.4vw,4rem)}
.trust{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(32px,5vw,72px);align-items:start;margin-top:clamp(32px,5vw,64px)}
.trust__stage{position:sticky;top:14vh;aspect-ratio:4/3;overflow:hidden;background:var(--graphite)}
.trust__frame{position:absolute;inset:0;opacity:0;transition:opacity .6s var(--ease)}
.trust__frame.is-active{opacity:1}
.trust__frame img{width:100%;height:100%;object-fit:cover}
.trust__stage .marker{position:absolute;left:16px;bottom:14px;z-index:2;
  font:500 var(--step-mono)/1 "Plex Mono",monospace;letter-spacing:.18em;text-transform:uppercase;color:var(--limestone);
  text-shadow:0 1px 12px rgba(0,0,0,.7)}
.trust__groups{display:grid;gap:clamp(40px,9vh,120px);padding-block:8vh}
.trust__group{opacity:.3;transition:opacity .5s var(--ease)}
.trust__group.is-active{opacity:1}
.trust__group h3{margin-bottom:1.2rem;padding-bottom:1.2rem;border-bottom:1px solid var(--hair)}
.trust__group ul{list-style:none;display:grid;gap:1rem}
.trust__group li{position:relative;padding-left:1.5em;color:var(--concrete);line-height:1.45}
.trust__group li::before{content:"";position:absolute;left:0;top:.62em;width:10px;height:1px;background:var(--brass)}
@media (max-width:820px){
  .trust{grid-template-columns:1fr;gap:2rem}
  .trust__stage{position:relative;top:0;aspect-ratio:16/10}
  .trust__frame{opacity:0} .trust__frame.is-active{opacity:1}
  .trust__groups{padding-block:0;gap:2.8rem}
  .trust__group{opacity:1}
}

/* "Hareketi azalt": swap döngüsü çalışmaz — üç kare alt alta, hepsi görünür */
@media (prefers-reduced-motion:reduce){
  .trust__stage{position:static;aspect-ratio:auto;display:grid;gap:12px;background:none;overflow:visible}
  .trust__frame,.trust__frame.is-active{position:relative;opacity:1;aspect-ratio:4/3;overflow:hidden}
  .trust__group{opacity:1}
}

/* ---- data-split: harf harf belirme (Sobha span.char: opaklık 0→1, ~0.3 s,
   power2.out, harfler arası kaydırmalı gecikme) ------------------------------ */
html.js [data-split] .w{display:inline-block;white-space:nowrap}
html.js [data-split] .c{
  display:inline-block;opacity:0;
  transition:opacity .32s var(--ease-p2);transition-delay:calc(var(--c,0) * 22ms);
}
html.js [data-split].in .c{opacity:1}
@media (prefers-reduced-motion:reduce){
  html.js [data-split] .c{opacity:1;transition:none}
}

/* ---- header: menü linkleri aşağı kaydırırken kaybolur, yukarıda geri gelir
   (Sobha: op 1→0 power2.inOut ~450 ms). Wordmark + CTA sabit kalır. */
.nav a:not(.btn){transition:opacity .45s var(--ease-p2io),color .2s}
.site-header.nav-hidden .nav a:not(.btn){opacity:0;pointer-events:none}
.site-header.nav-hidden .nav a:not(.btn):focus-visible{opacity:1}

/* ---- proje görsellerinde iç-parallaks (yalnız masaüstü, <=24px) ------------ */
@media (min-width:900px) and (prefers-reduced-motion:no-preference){
  .project__media img{will-change:transform}
}

/* ---- iletişim ----------------------------------------------------------------- */
.contact{text-align:center}
.contact .h2{margin-inline:auto;max-width:22ch}
.contact .body{margin:1.4rem auto 2.4rem;max-width:52ch}
.contact__meta{
  margin-top:clamp(48px,7vw,96px);padding-top:clamp(28px,4vw,48px);border-top:1px solid var(--hair);
  display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;text-align:left;
}
.contact__meta dt{font:500 var(--step-mono)/1 "Plex Mono",monospace;letter-spacing:.16em;text-transform:uppercase;color:var(--concrete-dim);margin-bottom:.5rem}
.contact__meta dd{font-family:"Archivo";font-weight:300;font-stretch:108%;font-size:1.1rem;color:var(--limestone)}
.contact__meta a:hover{color:var(--brass)}
@media (max-width:720px){.contact__meta{grid-template-columns:1fr;gap:1.6rem}}

/* ---- footer ----------------------------------------------------------------- */
.site-footer{padding-block:clamp(48px,6vw,80px);border-top:1px solid var(--hair-2)}
.site-footer .wrap{display:flex;flex-wrap:wrap;gap:1.4rem 2rem;align-items:baseline;justify-content:space-between}
.site-footer .wordmark{font-size:1.15rem}
.site-footer p{font:500 var(--step-mono)/1.7 "Plex Mono",monospace;letter-spacing:.1em;text-transform:uppercase;color:var(--concrete-dim);max-width:60ch}

/* ---- reveal motion (INTENSITY 4) ---------------------------------------------
   Yalnızca JS varken gizle (html.js). JS yoksa içerik tam görünür kalır. */
@media (prefers-reduced-motion:no-preference){
  html.js [data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
  html.js [data-reveal].in{opacity:1;transform:none}
  html.js [data-reveal][data-reveal="2"]{transition-delay:.08s}
  html.js [data-reveal][data-reveal="3"]{transition-delay:.16s}
}