/* 09 · MONOLİT Mimarlık & İnşaat · beton grisi + bakır · minimalist, prestijli */
:root{
  --bg:#ecebe8;         /* concrete light (near-neutral) */
  --bg-2:#e2e0dc;
  --surface:#f6f5f3;
  --ink:#15171a;        /* near-black */
  --ink-soft:#5c5f63;
  --hair:rgba(21,23,26,.14);
  --copper:#b0653c;
  --copper-deep:#8f4e2c;
  --font-display:"Space Grotesk","Inter",sans-serif;
  --font-body:"Inter",system-ui,sans-serif;
}
body{background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:1.02rem}
h1,h2,h3,.display{font-family:var(--font-display);font-weight:600;line-height:1.0;letter-spacing:-0.03em;text-wrap:balance}
.eyebrow{font-weight:600;font-size:.76rem;letter-spacing:.18em;text-transform:uppercase;color:var(--copper)}
.section{padding:clamp(4.5rem,10vw,8.5rem) 0}
.lead{font-size:clamp(1.05rem,1.5vw,1.3rem);color:var(--ink-soft);max-width:60ch;text-wrap:pretty}

.nav{padding:1.5rem 0;mix-blend-mode:difference;color:#fff}
.nav.scrolled{mix-blend-mode:normal;color:var(--ink);background:rgba(236,235,232,.9);box-shadow:0 1px 0 var(--hair);padding:.9rem 0}
.nav__row{display:flex;align-items:center;justify-content:space-between;gap:2rem}
.brand{font-family:var(--font-display);font-size:1.4rem;font-weight:700;letter-spacing:-0.02em}
.nav__links{display:flex;gap:2rem;align-items:center;font-weight:500;font-size:.95rem}
.nav__links a{color:inherit;opacity:.85;transition:opacity .2s}
.nav__links a:hover{opacity:1}
.nav.scrolled .nav__links a{color:var(--ink-soft)}
.nav.scrolled .nav__links a:hover{color:var(--ink)}
.btn--copper{background:var(--copper);color:#fff;mix-blend-mode:normal}
.btn--copper:hover{background:var(--copper-deep)}
.btn--line{border:1px solid currentColor}
.nav__toggle{display:none}

/* hero */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;overflow:hidden;isolation:isolate;color:#fff}
.hero__media{position:absolute;inset:-6% 0;z-index:-2}
.hero__media img{width:100%;height:100%;object-fit:cover}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(15,17,20,.35),transparent 30%,rgba(15,17,20,.75))}
.hero__inner{padding-bottom:clamp(3rem,7vw,6rem);width:100%}
.hero h1{font-size:clamp(3rem,11vw,9rem);color:#fff;letter-spacing:-0.04em}
.hero__row{display:flex;justify-content:space-between;align-items:flex-end;gap:2rem;flex-wrap:wrap;margin-top:1.5rem}
.hero .lead{color:rgba(255,255,255,.9);max-width:40ch}

/* statement */
.statement h2{font-size:clamp(2.2rem,5.5vw,4rem);max-width:22ch}
.statement__meta{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;margin-top:3rem;padding-top:2rem;border-top:1px solid var(--hair)}
.statement__meta b{font-family:var(--font-display);font-size:clamp(2.2rem,4vw,3rem);display:block}
.statement__meta span{color:var(--ink-soft);font-size:.88rem}

/* sticky project */
.flag{background:var(--ink);color:#f2f1ef}
.flag .eyebrow{color:#e0a074}
.flag__intro{max-width:44rem;margin-bottom:3rem}
.flag__intro h2{color:#fff;font-size:clamp(2.4rem,6vw,4rem)}
.flag__grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,6vw,5rem);align-items:start}
.flag__media{position:sticky;top:10vh;height:80vh;border-radius:var(--r-md);overflow:hidden}
.flag__media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;
  transform:scale(1.05);transition:opacity .7s var(--ease-out),transform 1.2s var(--ease-out)}
.flag__media img.active{opacity:1;transform:scale(1)}
.fstep{min-height:70vh;display:flex;flex-direction:column;justify-content:center;
  border-top:1px solid rgba(255,255,255,.14);opacity:.4;transition:opacity .4s}
.fstep:first-child{border-top:none}
.fstep.active{opacity:1}
.fstep__no{font-family:var(--font-display);font-size:1rem;color:var(--copper);margin-bottom:.8rem;letter-spacing:.05em}
.fstep h3{color:#fff;font-size:clamp(1.8rem,3.5vw,2.6rem);margin-bottom:.9rem}
.fstep__val{font-family:var(--font-display);font-size:1.6rem;color:#e0a074;margin-top:1rem}

/* portfolio horizontal */
.port .hscroll__sticky{display:flex;align-items:center;overflow:hidden;min-height:82vh}
.port:not(.hscroll--pinned) .hscroll__sticky{overflow-x:auto;scroll-snap-type:x mandatory}
.port .hscroll__track{padding:0 clamp(1.15rem,4vw,2.5rem);align-items:stretch}
.port__head{flex:0 0 min(80vw,26rem);align-self:center;padding-right:1rem}
.port__head h2{font-size:clamp(2.4rem,6vw,4rem)}
.wcard{position:relative;flex:0 0 min(82vw,38rem);aspect-ratio:3/4;border-radius:var(--r-md);overflow:hidden;scroll-snap-align:center}
.wcard img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease-out)}
.wcard:hover img{transform:scale(1.05)}
.wcard::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(15,17,20,.85))}
.wcard__body{position:absolute;left:1.6rem;bottom:1.6rem;right:1.6rem;z-index:2;color:#fff}
.wcard__body h3{font-size:1.9rem}
.wcard__body p{opacity:.82;font-size:.9rem}
.wcard__body .tag{display:inline-block;font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;
  border:1px solid rgba(255,255,255,.4);padding:.2rem .6rem;border-radius:var(--r-pill);margin-bottom:.7rem}

/* brochure cta */
.broc__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.broc__media{border-radius:var(--r-md);overflow:hidden;aspect-ratio:4/3}
.broc__media img{width:100%;height:100%;object-fit:cover}
.broc h2{font-size:clamp(2.2rem,5vw,3.6rem)}
.broc__cta{display:flex;gap:1rem;flex-wrap:wrap;margin-top:2rem}
.dl{display:flex;align-items:center;gap:.7rem;padding:1rem 1.3rem;border:1px solid var(--hair);
  border-radius:var(--r-md);background:var(--surface);font-weight:600;transition:.25s}
.dl:hover{border-color:var(--copper);transform:translateY(-2px)}
.dl small{display:block;color:var(--ink-soft);font-weight:400;font-size:.78rem}

/* contact */
.contact{background:var(--bg-2)}
.contact__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem)}
.field{display:flex;flex-direction:column;gap:.4rem;margin-bottom:1.1rem}
.field label{font-size:.82rem;color:var(--ink-soft)}
.field input,.field select,.field textarea{background:var(--surface);border:1px solid var(--hair);border-radius:var(--r-md);padding:.85rem 1rem;transition:border-color .2s}
.field :focus{outline:none;border-color:var(--copper)}

.foot{background:var(--ink);color:#b9bbbe;padding:4rem 0 2rem}
.foot .brand{color:#fff}
.foot__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:2rem;margin-bottom:3rem}
.foot h4{font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:#e0a074;margin-bottom:1rem}
.foot a{color:#b9bbbe;display:block;padding:.22rem 0;transition:color .2s}
.foot a:hover{color:#fff}
.foot__bottom{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding-top:1.6rem;border-top:1px solid rgba(255,255,255,.14);font-size:.85rem;opacity:.85}

@media (max-width:860px){
  .nav{mix-blend-mode:normal;color:#fff}
  .nav__links{position:fixed;inset:0 0 0 auto;width:min(80vw,320px);background:var(--ink);color:#fff;
    flex-direction:column;justify-content:center;gap:1.5rem;padding:2rem;transform:translateX(100%);
    transition:transform .4s var(--ease-drawer);z-index:var(--z-overlay)}
  .nav__links.open{transform:translateX(0)}
  .nav__links a{font-size:1.5rem;font-family:var(--font-display);color:#fff}
  .nav__toggle{display:flex;flex-direction:column;gap:5px;width:28px;z-index:var(--z-modal);position:relative}
  .nav__toggle span{height:2px;background:currentColor;transition:transform .3s var(--ease-out),opacity .3s}
  .nav__toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav__toggle.open span:nth-child(2){opacity:0}
  .nav__toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .statement__meta{grid-template-columns:1fr}
  .flag__grid,.broc__grid,.contact__grid{grid-template-columns:1fr}
  .flag__media{position:relative;top:0;height:48vh;margin-bottom:1.5rem}
  .fstep{min-height:auto;padding:2rem 0;opacity:1}
  .foot__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){.foot__grid{grid-template-columns:1fr}}