/* ===========================================================
   KARAHAN YAPI — Apple-style corporate site
   =========================================================== */
:root{
  --bg:#ffffff;
  --bg-soft:#f5f5f7;
  --bg-soft2:#fafafa;
  --ink:#1d1d1f;
  --ink-2:#6e6e73;
  --ink-3:#86868b;
  --line:#e3e3e6;
  --gold:#a8845a;
  --gold-deep:#8a6a44;
  --gold-soft:#c6a878;
  --nav-h:66px;
  --radius:22px;
  --radius-lg:28px;
  --maxw:1080px;
  --ease:cubic-bezier(.22,1,.36,1);
  --font:"Inter","SF Pro Display",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  color:var(--ink);
  background:var(--bg);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
::selection{background:rgba(168,132,90,.22)}

/* ---------- Layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.wide{max-width:1320px;margin:0 auto;padding:0 24px}
section{position:relative}

/* ---------- Type ---------- */
h1,h2,h3,h4{font-weight:600;letter-spacing:-.02em;line-height:1.06}
.kicker{
  font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--gold);margin-bottom:18px;
}
.display{font-size:clamp(40px,7vw,88px);font-weight:600;letter-spacing:-.03em}
.h-xl{font-size:clamp(34px,5vw,64px)}
.h-lg{font-size:clamp(28px,4vw,48px)}
.h-md{font-size:clamp(22px,3vw,32px)}
.lead{font-size:clamp(19px,2.4vw,26px);color:var(--ink-2);font-weight:400;line-height:1.45}
.muted{color:var(--ink-2)}
.center{text-align:center}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-size:16px;font-weight:500;padding:13px 26px;border-radius:980px;
  transition:transform .4s var(--ease),background .3s,color .3s,box-shadow .4s var(--ease);
  will-change:transform;
}
.btn:hover{transform:translateY(-2px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000}
.btn-gold{background:var(--gold);color:#fff;box-shadow:0 10px 30px -10px rgba(168,132,90,.6)}
.btn-gold:hover{background:var(--gold-deep);box-shadow:0 16px 40px -12px rgba(168,132,90,.7)}
.btn-ghost{border:1px solid rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.link-arrow{color:var(--gold);font-weight:500;display:inline-flex;align-items:center;gap:6px}
.link-arrow svg{transition:transform .35s var(--ease)}
.link-arrow:hover svg{transform:translateX(5px)}

/* ---------- Nav ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:1000;
  display:flex;align-items:center;
  background:rgba(255,255,255,.72);
  backdrop-filter:saturate(180%) blur(20px);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid rgba(0,0,0,0);
  transition:background .4s,border-color .4s;
}
.nav.solid{border-bottom:1px solid var(--line)}
.nav-inner{max-width:1320px;margin:0 auto;width:100%;padding:0 22px;
  display:flex;align-items:center;justify-content:space-between}
.nav-logo img{height:34px;width:auto;display:block}
.nav-links{display:flex;gap:34px;list-style:none}
.nav-links a{font-size:14px;color:var(--ink);opacity:.85;transition:opacity .25s;position:relative}
.nav-links a:hover{opacity:1}
.nav-links a.active{color:var(--gold);opacity:1}
.nav-cta{font-size:14px;color:var(--gold);font-weight:500}
.nav-burger{display:none;width:26px;height:18px;position:relative;cursor:pointer;background:none;border:0}
.nav-burger span{position:absolute;left:0;height:1.5px;width:100%;background:var(--ink);transition:.35s var(--ease)}
.nav-burger span:nth-child(1){top:2px}
.nav-burger span:nth-child(2){top:50%;transform:translateY(-50%)}
.nav-burger span:nth-child(3){bottom:2px}
body.menu-open .nav-burger span:nth-child(1){top:50%;transform:translateY(-50%) rotate(45deg)}
body.menu-open .nav-burger span:nth-child(2){opacity:0}
body.menu-open .nav-burger span:nth-child(3){bottom:auto;top:50%;transform:translateY(-50%) rotate(-45deg)}

/* mobile menu sheet */
.mobile-menu{
  position:fixed;inset:var(--nav-h) 0 0;z-index:999;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(26px) saturate(170%);-webkit-backdrop-filter:blur(26px) saturate(170%);
  display:flex;flex-direction:column;justify-content:space-between;
  padding:7vh 30px 34px;
  opacity:0;visibility:hidden;transition:opacity .45s var(--ease),visibility .45s;
}
body.menu-open .mobile-menu{opacity:1;visibility:visible}
.mm-links{display:flex;flex-direction:column}
.mm-links a{
  display:flex;align-items:baseline;gap:16px;padding:17px 0;
  font-size:clamp(28px,8vw,38px);font-weight:600;letter-spacing:-.025em;color:var(--ink);
  border-bottom:1px solid var(--line);position:relative;
  opacity:0;transform:translateY(30px);
  transition:opacity .55s var(--ease),transform .55s var(--ease),color .3s;
}
.mm-links a::after{content:"";position:absolute;left:0;bottom:-1px;height:1px;width:0;
  background:var(--gold);transition:width .5s var(--ease)}
.mm-links a:active::after,.mm-links a.active::after{width:48px}
.mm-links a.active{color:var(--gold)}
body.menu-open .mm-links a{opacity:1;transform:none}
body.menu-open .mm-links a:nth-child(1){transition-delay:.07s}
body.menu-open .mm-links a:nth-child(2){transition-delay:.13s}
body.menu-open .mm-links a:nth-child(3){transition-delay:.19s}
body.menu-open .mm-links a:nth-child(4){transition-delay:.25s}
body.menu-open .mm-links a:nth-child(5){transition-delay:.31s}
.mm-foot{display:flex;flex-direction:column;gap:16px;
  opacity:0;transform:translateY(24px);
  transition:opacity .55s var(--ease),transform .55s var(--ease)}
body.menu-open .mm-foot{opacity:1;transform:none;transition-delay:.42s}
.mm-foot .btn{justify-content:center}
.mm-tel{text-align:center;font-size:15px;color:var(--ink-2);letter-spacing:.02em}
.mm-tel strong{color:var(--ink);font-weight:500}

/* ---------- Hero ---------- */
.hero{position:relative;height:100vh;min-height:640px;display:flex;align-items:center;
  justify-content:center;text-align:center;overflow:hidden;color:#fff}
.hero-media{position:absolute;inset:0;z-index:-2}
.hero-media img{width:100%;height:100%;object-fit:cover;transform:scale(1.08);
  animation:heroZoom 14s var(--ease) forwards}
@keyframes heroZoom{to{transform:scale(1)}}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(0,0,0,.45) 0%,rgba(0,0,0,.15) 35%,rgba(0,0,0,.55) 100%)}
.hero-content{padding:0 24px;max-width:900px}
.hero .kicker{color:var(--gold-soft)}
.hero h1{font-size:clamp(44px,8vw,104px);font-weight:600;letter-spacing:-.035em;
  text-shadow:0 2px 30px rgba(0,0,0,.25)}
.hero .lead{color:rgba(255,255,255,.92);margin:22px auto 34px;max-width:620px}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.scroll-hint{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);
  width:24px;height:38px;border:1.5px solid rgba(255,255,255,.6);border-radius:14px;z-index:1}
.scroll-hint::after{content:"";position:absolute;top:7px;left:50%;width:3px;height:7px;
  background:#fff;border-radius:3px;transform:translateX(-50%);animation:scrollDot 1.8s infinite}
@keyframes scrollDot{0%{opacity:0;top:7px}40%{opacity:1}80%{opacity:0;top:18px}100%{opacity:0}}

/* page hero (inner pages) */
.phero{padding:calc(var(--nav-h) + 110px) 0 70px;text-align:center}
.phero .lead{max-width:640px;margin:18px auto 0}

/* ---------- Sections / blocks ---------- */
.sec{padding:clamp(80px,11vw,150px) 0}
.sec-soft{background:var(--bg-soft)}
.sec-dark{background:#0a0a0a;color:#fff}
.sec-dark .muted,.sec-dark .lead{color:rgba(255,255,255,.66)}
.sec-head{max-width:760px;margin:0 auto 60px;text-align:center}
.sec-head .lead{margin-top:18px}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat .num{font-size:clamp(40px,5vw,64px);font-weight:600;letter-spacing:-.03em;
  background:linear-gradient(135deg,var(--gold-soft),var(--gold-deep));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.stat .lbl{color:var(--ink-2);font-size:15px;margin-top:8px}

/* feature split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split.rev .split-media{order:-1}
.split-media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:0 30px 80px -40px rgba(0,0,0,.4)}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 1.1s var(--ease)}
.split-media:hover img{transform:scale(1.05)}
.split-text h2{margin-bottom:20px}
.split-text p{color:var(--ink-2);font-size:18px;margin-bottom:18px}

/* intro split (text + image) */
.introsplit{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.introsplit .lead{margin:22px 0 0}
.introsplit-media{border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:0 30px 80px -45px rgba(0,0,0,.45)}
.introsplit-media img{width:100%;aspect-ratio:4/3.4;object-fit:cover;
  transition:transform 1.1s var(--ease)}
.introsplit-media:hover img{transform:scale(1.05)}
@media(max-width:900px){
  .introsplit{grid-template-columns:1fr;gap:34px;text-align:center}
  .introsplit .lead{margin-left:auto;margin-right:auto}
}

/* big showcase card */
.showcase{position:relative;border-radius:var(--radius-lg);overflow:hidden;
  min-height:560px;display:flex;align-items:flex-end;color:#fff;
  box-shadow:0 40px 100px -50px rgba(0,0,0,.55)}
.showcase img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform 1.4s var(--ease)}
.showcase:hover img{transform:scale(1.06)}
.showcase::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(0,0,0,0) 30%,rgba(0,0,0,.78) 100%)}
.showcase-body{position:relative;z-index:1;padding:clamp(32px,5vw,56px)}
.showcase-body .tag{display:inline-block;font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.3);
  padding:6px 14px;border-radius:980px;margin-bottom:16px;backdrop-filter:blur(8px)}

/* project grid */
.pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--bg-soft);
  aspect-ratio:4/5;box-shadow:0 1px 0 rgba(0,0,0,.03)}
.card img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease)}
.card:hover img{transform:scale(1.07)}
.card::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(0,0,0,0) 45%,rgba(0,0,0,.72) 100%);
  opacity:.85;transition:opacity .4s}
.card-body{position:absolute;left:0;right:0;bottom:0;z-index:1;padding:24px;color:#fff;
  transform:translateY(6px);transition:transform .5s var(--ease)}
.card:hover .card-body{transform:translateY(0)}
.card-body h3{font-size:21px}
.card-body .meta{font-size:13px;color:rgba(255,255,255,.75);margin-top:4px}
.card-status{position:absolute;top:16px;left:16px;z-index:2;font-size:11px;font-weight:600;
  letter-spacing:.08em;text-transform:uppercase;color:#fff;background:var(--gold);
  padding:6px 12px;border-radius:980px}
.card-status.done{background:rgba(255,255,255,.85);color:var(--ink)}

/* text project boxes (no image) */
.pboxgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.pbox{position:relative;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 30px 28px;min-height:210px;display:flex;flex-direction:column;overflow:hidden;
  transition:transform .5s var(--ease),box-shadow .5s var(--ease),border-color .5s}
.pbox:hover{transform:translateY(-6px);box-shadow:0 26px 56px -34px rgba(0,0,0,.22)}
.pbox-top{display:flex;align-items:center;justify-content:space-between}
.pbox .idx{font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--ink-3)}
.pbox .badge{font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  color:var(--gold-deep);background:rgba(168,132,90,.12);padding:6px 12px;border-radius:980px}
.pbox h3{font-size:25px;letter-spacing:-.02em;margin-top:auto;padding-top:48px;
  transition:color .4s}
.pbox:hover h3{color:var(--gold-deep)}
.pbox .meta{font-size:14px;color:var(--ink-2);margin-top:9px;display:flex;align-items:center;gap:7px}
.pbox .meta svg{color:var(--gold);flex:0 0 auto}
.pbox::after{content:"";position:absolute;left:30px;bottom:0;height:2px;width:0;
  background:var(--gold);transition:width .55s var(--ease)}
.pbox:hover::after{width:36px}
@media(max-width:900px){.pboxgrid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.pboxgrid{grid-template-columns:1fr}}

/* value cards */
.vgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.vcard{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:38px 32px;transition:transform .5s var(--ease),box-shadow .5s var(--ease)}
.vcard:hover{transform:translateY(-6px);box-shadow:0 30px 60px -35px rgba(0,0,0,.25)}
.vicon{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;margin-bottom:22px;
  background:linear-gradient(135deg,rgba(168,132,90,.16),rgba(168,132,90,.05));color:var(--gold)}
.vcard h3{font-size:20px;margin-bottom:10px}
.vcard p{color:var(--ink-2);font-size:16px}

/* why us — photo overlay cards */
.ph-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.ph-card{position:relative;border-radius:var(--radius);overflow:hidden;aspect-ratio:3/4;
  display:flex;align-items:flex-end;box-shadow:0 30px 70px -45px rgba(0,0,0,.5)}
.ph-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform 1s var(--ease)}
.ph-card:hover img{transform:scale(1.06)}
.ph-card::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(0,0,0,.05) 28%,rgba(0,0,0,.86) 100%)}
.ph-body{position:relative;z-index:1;padding:32px;color:#fff;transform:translateY(6px);
  transition:transform .5s var(--ease)}
.ph-card:hover .ph-body{transform:translateY(0)}
.ph-ic{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;margin-bottom:18px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);color:#fff;
  backdrop-filter:blur(8px)}
.ph-num{font-size:12px;font-weight:600;letter-spacing:.16em;color:var(--gold-soft);margin-bottom:10px}
.ph-body h3{font-size:24px;margin-bottom:10px;letter-spacing:-.02em}
.ph-body p{color:rgba(255,255,255,.84);font-size:15px;line-height:1.5}
@media(max-width:900px){.ph-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.ph-grid{grid-template-columns:1fr}}

/* gallery (anka detail) */
.gal{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.gal a{border-radius:18px;overflow:hidden;display:block}
.gal img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease)}
.gal a:hover img{transform:scale(1.06)}
.gal .g-tall{grid-row:span 2}
.gal .g-wide{grid-column:span 3}
.gal .g-big{grid-column:span 3;grid-row:span 2}
.gal .g-3{grid-column:span 3}
.gal .g-2{grid-column:span 2}

/* contact */
.cgrid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px}
.cinfo .row{display:flex;gap:16px;padding:24px 0;border-bottom:1px solid var(--line)}
.cinfo .row:first-child{padding-top:0}
.cic{flex:0 0 44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--bg-soft);color:var(--gold)}
.cinfo .k{font-size:13px;color:var(--ink-3);text-transform:uppercase;letter-spacing:.08em}
.cinfo .v{font-size:18px;margin-top:3px}
.form{background:var(--bg-soft);border-radius:var(--radius-lg);padding:38px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:8px}
.field input,.field textarea{width:100%;border:1px solid var(--line);background:#fff;
  border-radius:14px;padding:14px 16px;font-family:inherit;font-size:16px;color:var(--ink);
  transition:border-color .3s,box-shadow .3s}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--gold);
  box-shadow:0 0 0 4px rgba(168,132,90,.12)}
.field textarea{resize:vertical;min-height:120px}

/* map strip */
.mapstrip{height:360px;background:var(--bg-soft);position:relative;overflow:hidden}
.mapstrip iframe{width:100%;height:100%;border:0;filter:grayscale(.2) contrast(1.05)}

/* ---------- Footer ---------- */
.footer{background:#0a0a0a;color:#fff;padding:70px 0 40px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;
  padding-bottom:46px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer img{height:24px;margin-bottom:18px;filter:brightness(0) invert(1)}
.footer p{color:rgba(255,255,255,.6);font-size:15px;max-width:320px}
.footer h4{font-size:13px;letter-spacing:.1em;text-transform:uppercase;
  color:rgba(255,255,255,.5);margin-bottom:18px;font-weight:600}
.footer ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.footer ul a{color:rgba(255,255,255,.78);font-size:15px;transition:color .25s}
.footer ul a:hover{color:var(--gold-soft)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;
  padding-top:26px;color:rgba(255,255,255,.4);font-size:13px;flex-wrap:wrap;gap:10px}

/* ---------- Lightbox ---------- */
.lb{position:fixed;inset:0;z-index:2000;background:rgba(8,8,8,.95);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transition:opacity .35s var(--ease);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.lb.on{opacity:1;visibility:visible}
.lb-img{max-width:86vw;max-height:82vh;border-radius:10px;object-fit:contain;
  box-shadow:0 40px 120px -30px rgba(0,0,0,.85);
  transform:scale(.96);transition:transform .35s var(--ease)}
.lb.on .lb-img{transform:scale(1)}
.lb-close{position:absolute;top:22px;right:26px;width:46px;height:46px;border-radius:50%;
  border:0;background:rgba(255,255,255,.1);color:#fff;font-size:24px;line-height:1;cursor:pointer;
  display:grid;place-items:center;transition:background .25s}
.lb-close:hover{background:rgba(255,255,255,.22)}
.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;font-size:30px;line-height:1;
  cursor:pointer;display:grid;place-items:center;transition:background .25s}
.lb-nav:hover{background:rgba(255,255,255,.22)}
.lb-prev{left:22px}
.lb-next{right:22px}
.lb-meta{position:absolute;bottom:24px;left:0;right:0;text-align:center;color:#fff;
  pointer-events:none}
.lb-cap{font-size:16px;font-weight:500;letter-spacing:-.01em}
.lb-count{font-size:13px;color:rgba(255,255,255,.6);margin-top:4px;letter-spacing:.06em}
.lb-trigger{cursor:zoom-in}
@media(max-width:560px){
  .lb-nav{width:44px;height:44px;font-size:24px}
  .lb-prev{left:10px}.lb-next{right:10px}
  .lb-img{max-width:94vw}
}

/* ---------- Scroll reveal ---------- */
.reveal{opacity:0;transform:translateY(34px);
  transition:opacity 1s var(--ease),transform 1s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}
.reveal.d2{transition-delay:.16s}
.reveal.d3{transition-delay:.24s}
.reveal.d4{transition-delay:.32s}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hero-media img{animation:none;transform:none}
}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .nav-links,.nav-cta{display:none}
  .nav-burger{display:block}
  .nav-logo img{height:42px}
  .split{grid-template-columns:1fr;gap:34px}
  .split.rev .split-media{order:0}
  .why-grid{grid-template-columns:1fr;gap:8px}
  .why-aside-inner{position:static}
  .why-progress{display:none}
  .why-item{padding-left:26px}
  .stats{grid-template-columns:repeat(2,1fr);gap:36px 20px}
  .pgrid,.vgrid{grid-template-columns:1fr 1fr;gap:16px}
  .cgrid{grid-template-columns:1fr;gap:40px}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px}
  .gal{grid-template-columns:repeat(2,1fr)}
  .gal .g-wide,.gal .g-big,.gal .g-3{grid-column:span 2}
  .gal .g-big{grid-row:span 1}
}
@media(max-width:560px){
  .pgrid,.vgrid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .footer-top{grid-template-columns:1fr}
  .gal{grid-template-columns:1fr}
  .gal .g-tall,.gal .g-big{grid-row:span 1}
}