/* Yasinoğlu İnşaat — site stilleri */
:root{
  --red:#c9282e;
  --red-dark:#a51f24;
  --ink:#232325;
  --ink-2:#3a3a3d;
  --gray:#5a5a5c;
  --muted:#7b7b80;
  --line:#e4e2de;
  --paper:#ffffff;
  --sand:#f5f3ef;
  --radius:4px;
  --wrap:1200px;
  --head-h:84px;
  --font:"Manrope",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --display:"Archivo",var(--font);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--head-h) + 16px)}
html,body{overflow-x:clip}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.65;color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--display);line-height:1.15;margin:0 0 .5em;letter-spacing:-.01em;color:var(--ink)}
p{margin:0 0 1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:16px;background:#fff;padding:8px 12px;z-index:200}

/* ---------- Header ---------- */
.site-head{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:saturate(1.2) blur(8px);border-bottom:1px solid var(--line)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;height:var(--head-h)}
.brand img{height:52px;width:auto}
.nav{display:flex;gap:6px;align-items:center}
.nav a{font-weight:600;font-size:15px;padding:10px 16px;color:var(--ink-2);position:relative;border-radius:var(--radius);transition:color .2s}
.nav a::after{content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;background:var(--red);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.nav a:hover{color:var(--red)}
.nav a:hover::after,.nav a[aria-current="page"]::after{transform:scaleX(1)}
.nav a[aria-current="page"]{color:var(--red)}
.nav .nav-call{margin-left:10px;background:var(--red);color:#fff;padding:10px 18px}
.nav .nav-call::after{display:none}
.nav .nav-call:hover{background:var(--red-dark);color:#fff}
.menu-btn{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer;padding:10px}
.menu-btn span{display:block;height:2px;background:var(--ink);margin:6px 0;transition:transform .25s,opacity .25s}
.menu-open .menu-btn span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.menu-open .menu-btn span:nth-child(2){opacity:0}
.menu-open .menu-btn span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:15px;padding:14px 26px;border-radius:var(--radius);border:2px solid transparent;transition:background .2s,color .2s,border-color .2s;cursor:pointer}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:var(--red-dark)}
.btn-line{border-color:rgba(255,255,255,.7);color:#fff}
.btn-line:hover{background:#fff;color:var(--ink)}
.btn-dark{border-color:var(--ink);color:var(--ink)}
.btn-dark:hover{background:var(--ink);color:#fff}
.btn svg{width:18px;height:18px}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:min(86vh,760px);display:flex;align-items:flex-end;color:#fff;overflow:hidden;background:#1d1d1f}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.04);animation:heroZoom 14s ease-out forwards}
@keyframes heroZoom{to{transform:scale(1)}}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,18,20,.82) 0%,rgba(18,18,20,.55) 45%,rgba(18,18,20,.15) 100%),linear-gradient(0deg,rgba(18,18,20,.55),transparent 45%)}
.hero .wrap{position:relative;z-index:2;padding-top:120px;padding-bottom:96px;width:100%}
.eyebrow{display:inline-flex;align-items:center;gap:12px;font-size:13px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--red);margin-bottom:18px}
.eyebrow::before{content:"";width:34px;height:2px;background:currentColor}
.hero .eyebrow{color:#fff}
.hero .eyebrow::before{background:var(--red)}
.hero h1{color:#fff;font-size:clamp(38px,6vw,72px);font-weight:800;max-width:14ch;margin-bottom:22px}
.hero h1 em{font-style:normal;color:var(--red)}
.hero p{font-size:clamp(16px,1.6vw,19px);max-width:52ch;color:rgba(255,255,255,.86);margin-bottom:34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- Sections ---------- */
.section{padding:96px 0}
.section.sand{background:var(--sand)}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.section-head h2{font-size:clamp(28px,3.4vw,42px);margin:0}
.section-head p{color:var(--gray);max-width:46ch;margin:0}
.lead{font-size:18px;color:var(--ink-2)}

/* ---------- Split (about teaser) ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:64px;align-items:center}
.split-img{position:relative}
.split-img img{width:100%;aspect-ratio:4/3.4;object-fit:cover;border-radius:var(--radius)}
.split-img::before{content:"";position:absolute;left:-18px;bottom:-18px;width:46%;height:56%;background:var(--red);z-index:-1;border-radius:var(--radius)}
.split h2{font-size:clamp(28px,3.4vw,42px)}
.checks{list-style:none;padding:0;margin:26px 0 34px;display:grid;gap:12px}
.checks li{display:flex;gap:12px;align-items:flex-start;font-weight:600}
.checks li::before{content:"";flex:none;width:20px;height:20px;margin-top:3px;border-radius:50%;background:var(--red) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center/12px no-repeat}

/* ---------- Project cards (home) ---------- */
.proj-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}
.proj-card{position:relative;overflow:hidden;border-radius:var(--radius);background:#222;grid-column:span 4;aspect-ratio:4/3.1;color:#fff;isolation:isolate}
.proj-card.wide{grid-column:span 8;aspect-ratio:auto}
.proj-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .7s cubic-bezier(.2,.7,.2,1);z-index:-2}
.proj-card::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(15,15,17,.82) 0%,rgba(15,15,17,.1) 55%,transparent);z-index:-1}
.proj-card:hover img{transform:scale(1.06)}
.proj-card .meta{position:absolute;left:24px;right:24px;bottom:22px}
.proj-card .tag{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#ffb3b5}
.proj-card h3{color:#fff;font-size:24px;margin:4px 0 0;display:flex;align-items:center;justify-content:space-between;gap:12px}
.proj-card h3 svg{width:22px;height:22px;flex:none;transition:transform .3s}
.proj-card:hover h3 svg{transform:translateX(4px)}

/* ---------- Stats / values ---------- */
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line)}
.value{padding:36px 32px 36px 0;border-right:1px solid var(--line)}
.value + .value{padding-left:32px}
.value:last-child{border-right:0}
.value .num{font-family:var(--display);font-size:15px;font-weight:800;color:var(--red);letter-spacing:.1em}
.value h3{font-size:22px;margin:10px 0 8px}
.value p{color:var(--gray);margin:0}

/* ---------- CTA band ---------- */
.cta{background:var(--ink);color:#fff;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;right:-80px;top:-60px;width:360px;height:360px;background:repeating-linear-gradient(-45deg,rgba(255,255,255,.05) 0 2px,transparent 2px 14px)}
.cta .wrap{display:flex;align-items:center;justify-content:space-between;gap:32px;padding-top:64px;padding-bottom:64px;flex-wrap:wrap;position:relative}
.cta h2{color:#fff;font-size:clamp(26px,3vw,36px);margin:0 0 6px}
.cta p{color:rgba(255,255,255,.7);margin:0}
.cta .phone{font-family:var(--display);font-size:clamp(24px,3vw,34px);font-weight:800;color:#fff;display:flex;align-items:center;gap:14px}
.cta .phone svg{width:28px;height:28px;color:var(--red)}

/* ---------- Page header ---------- */
.page-head{background:var(--ink);color:#fff;position:relative;overflow:hidden}
.page-head .bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.32}
.page-head .wrap{position:relative;padding-top:84px;padding-bottom:72px}
.page-head h1{color:#fff;font-size:clamp(34px,5vw,56px);margin:0 0 10px}
.page-head p{color:rgba(255,255,255,.8);max-width:60ch;margin:0}
.crumbs{font-size:14px;color:rgba(255,255,255,.65);margin-bottom:14px}
.crumbs a:hover{color:#fff}
.crumbs span{margin:0 8px}

/* ---------- References page ---------- */
.filter{position:sticky;top:var(--head-h);z-index:20;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line)}
.filter .wrap{display:flex;gap:8px;overflow-x:auto;padding-top:14px;padding-bottom:14px;scrollbar-width:none}
.filter .wrap::-webkit-scrollbar{display:none}
.filter a{flex:none;font-size:14px;font-weight:700;padding:9px 16px;border:1px solid var(--line);border-radius:999px;color:var(--ink-2);transition:all .2s;white-space:nowrap}
.filter a:hover{border-color:var(--red);color:var(--red)}
.filter a.active{background:var(--red);border-color:var(--red);color:#fff}
.ref{padding:72px 0;border-bottom:1px solid var(--line)}
.ref:nth-of-type(even){background:var(--sand)}
.ref-head{display:grid;grid-template-columns:auto 1fr auto;align-items:end;gap:8px 24px;margin-bottom:28px}
.ref-no{font-family:var(--display);font-size:56px;font-weight:800;line-height:.9;color:transparent;-webkit-text-stroke:1.5px var(--red)}
.ref-head h2{font-size:clamp(26px,3vw,36px);margin:0 0 4px}
.ref-head .tag{font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--red)}
.ref-head .count{color:var(--muted);font-size:14px;font-weight:600;white-space:nowrap}
.thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px}
.thumb{position:relative;display:block;aspect-ratio:4/3;overflow:hidden;border-radius:var(--radius);background:#ddd;cursor:zoom-in;border:0;padding:0}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease,filter .3s}
.thumb::after{content:"";position:absolute;inset:0;background:rgba(201,40,46,.0) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='M20 20l-4-4M11 8v6M8 11h6'/%3E%3C/svg%3E") center/38px no-repeat;opacity:0;transition:opacity .3s,background-color .3s}
.thumb:hover img,.thumb:focus-visible img{transform:scale(1.07)}
.thumb:hover::after,.thumb:focus-visible::after{opacity:1;background-color:rgba(201,40,46,.45)}
.thumb:focus-visible{outline:3px solid var(--red);outline-offset:2px}

/* ---------- Lightbox ---------- */
.lb{position:fixed;inset:0;z-index:1000;background:rgba(12,12,14,.94);display:flex;flex-direction:column;opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s}
.lb.open{opacity:1;visibility:visible}
.lb-top{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;color:#fff;gap:16px}
.lb-title{font-family:var(--display);font-weight:700;font-size:17px}
.lb-title small{display:block;font-family:var(--font);font-weight:600;font-size:13px;color:rgba(255,255,255,.6)}
.lb-close{background:rgba(255,255,255,.1);border:0;color:#fff;width:44px;height:44px;border-radius:50%;cursor:pointer;display:grid;place-items:center;transition:background .2s}
.lb-close:hover{background:var(--red)}
.lb-stage{flex:1;position:relative;display:flex;align-items:center;justify-content:center;padding:0 80px 16px;min-height:0}
.lb-stage img{max-width:100%;max-height:100%;object-fit:contain;border-radius:2px;box-shadow:0 20px 60px rgba(0,0,0,.5);transition:opacity .25s,transform .25s;user-select:none;-webkit-user-drag:none}
.lb-stage img.loading{opacity:0;transform:scale(.98)}
.lb-spin{position:absolute;width:40px;height:40px;border:3px solid rgba(255,255,255,.2);border-top-color:var(--red);border-radius:50%;animation:spin .8s linear infinite;display:none}
.lb.busy .lb-spin{display:block}
@keyframes spin{to{transform:rotate(360deg)}}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);width:54px;height:54px;border-radius:50%;border:0;background:rgba(255,255,255,.1);color:#fff;cursor:pointer;display:grid;place-items:center;transition:background .2s}
.lb-nav:hover{background:var(--red)}
.lb-prev{left:16px}.lb-next{right:16px}
.lb svg{width:24px;height:24px}
.lb-strip{display:flex;gap:8px;justify-content:center;padding:6px 16px 18px;overflow-x:auto;scrollbar-width:thin}
.lb-strip button{flex:none;width:76px;height:52px;border:2px solid transparent;border-radius:3px;padding:0;overflow:hidden;cursor:pointer;opacity:.5;background:#333;transition:opacity .2s,border-color .2s}
.lb-strip button img{width:100%;height:100%;object-fit:cover}
.lb-strip button:hover{opacity:.85}
.lb-strip button.on{opacity:1;border-color:var(--red)}
body.lb-lock{overflow:hidden}

/* ---------- About page ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.about-grid .imgs{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.about-grid .imgs img{width:100%;height:100%;object-fit:cover;border-radius:var(--radius);aspect-ratio:3/4}
.about-grid .imgs img:first-child{margin-top:48px}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:36px}
.fact{background:#fff;border:1px solid var(--line);border-left:3px solid var(--red);padding:18px 20px;border-radius:var(--radius)}
.fact b{display:block;font-family:var(--display);font-size:30px;color:var(--ink);line-height:1.1}
.fact span{color:var(--gray);font-size:14px;font-weight:600}
.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);padding:34px 30px;border-radius:var(--radius);transition:transform .3s,box-shadow .3s}
.card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(0,0,0,.07)}
.card .ico{width:52px;height:52px;border-radius:var(--radius);background:rgba(201,40,46,.08);color:var(--red);display:grid;place-items:center;margin-bottom:20px}
.card .ico svg{width:26px;height:26px}
.card h3{font-size:21px}
.card p{color:var(--gray);margin:0}

/* ---------- Contact page ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:stretch}
.info{display:grid;gap:16px;align-content:start}
.info-item{display:flex;gap:18px;padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:border-color .2s}
a.info-item:hover{border-color:var(--red)}
.info-item .ico{flex:none;width:50px;height:50px;border-radius:50%;background:var(--red);color:#fff;display:grid;place-items:center}
.info-item .ico svg{width:22px;height:22px}
.info-item small{display:block;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:4px}
.info-item strong{font-size:17px;font-weight:700;line-height:1.5;display:block}
.info-item .act{display:inline-block;margin-top:8px;color:var(--red);font-weight:700;font-size:14px}
.map{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);min-height:440px;background:var(--sand)}
.map iframe{width:100%;height:100%;min-height:440px;border:0;display:block}

/* ---------- Footer ---------- */
.site-foot{background:#18181a;color:rgba(255,255,255,.7);font-size:15px}
.site-foot .wrap{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:48px;padding-top:64px;padding-bottom:48px}
.foot-logo{height:46px;width:auto;filter:brightness(0) invert(1);opacity:.95;margin-bottom:18px}
.site-foot h4{font-family:var(--display);color:#fff;font-size:15px;letter-spacing:.08em;text-transform:uppercase;margin:6px 0 18px}
.site-foot ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.site-foot a:hover{color:#fff}
.foot-line{display:flex;gap:12px;align-items:flex-start;margin-bottom:12px}
.foot-line svg{width:18px;height:18px;flex:none;color:var(--red);margin-top:4px}
.copy{border-top:1px solid rgba(255,255,255,.08)}
.copy .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:20px;padding-bottom:20px;font-size:13px;color:rgba(255,255,255,.45)}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}.hero-bg{animation:none;transform:none}html{scroll-behavior:auto}}

/* ---------- Responsive ---------- */
@media (max-width:1000px){
  .split,.about-grid,.contact-grid{grid-template-columns:1fr;gap:48px}
  .proj-card,.proj-card.wide{grid-column:span 6;aspect-ratio:4/3}
  .site-foot .wrap{grid-template-columns:1fr 1fr}
  .site-foot .wrap > :first-child{grid-column:1/-1}
  .cards3{grid-template-columns:1fr 1fr}
}
@media (max-width:820px){
  :root{--head-h:70px}
  .brand img{height:42px}
  .site-head{backdrop-filter:none;background:#fff}
  .menu-btn{display:block}
  .nav{visibility:hidden}
  .menu-open .nav{visibility:visible}
  .nav{position:fixed;top:var(--head-h);left:0;right:0;bottom:0;background:#fff;flex-direction:column;align-items:stretch;padding:20px 16px;gap:4px;transform:translateX(100%);transition:transform .3s ease,visibility .3s;border-top:1px solid var(--line);height:calc(100dvh - var(--head-h))}
  .menu-open .nav{transform:none}
  .nav a{font-size:20px;padding:16px 12px;border-bottom:1px solid var(--line);border-radius:0}
  .nav a::after{display:none}
  .nav .nav-call{margin:16px 0 0;text-align:center;justify-content:center;border-radius:var(--radius);border-bottom:0}
  .values{grid-template-columns:1fr}
  .value,.value + .value{padding:28px 0;border-right:0;border-bottom:1px solid var(--line)}
  .facts{grid-template-columns:1fr 1fr 1fr;gap:10px}
  .fact{padding:14px}
  .fact b{font-size:24px}
}
@media (max-width:640px){
  .wrap{padding:0 16px}
  .section{padding:64px 0}
  .proj-card,.proj-card.wide{grid-column:1/-1}
  .hero .wrap{padding-bottom:64px}
  .cards3{grid-template-columns:1fr}
  .site-foot .wrap{grid-template-columns:1fr;gap:32px}
  .ref{padding:52px 0}
  .ref-head{grid-template-columns:auto 1fr}
  .ref-head .count{grid-column:1/-1}
  .ref-no{font-size:44px}
  .thumbs{grid-template-columns:repeat(2,1fr);gap:8px}
  .lb-stage{padding:0 0 12px}
  .lb-nav{width:44px;height:44px;background:rgba(0,0,0,.45)}
  .lb-prev{left:8px}.lb-next{right:8px}
  .lb-strip button{width:58px;height:40px}
  .facts{grid-template-columns:1fr}
  .split-img::before{left:-8px;bottom:-8px}
  .map,.map iframe{min-height:340px}
}