/* Ölmez Kardeşler İnşaat & Isı Yalıtımı — statik site */
:root{
  --ink:#1f2326; --muted:#5b646b; --line:#e1e5e8; --bg:#f3f4f5; --card:#fff;
  --dark:#232522; --dark-2:#2d302c; --dark-ink:#e9ebe7;
  --accent:#d9822b; --accent-dark:#b1661a; --accent-soft:#fbf1e5;
  --radius:12px; --shadow:0 1px 2px rgba(0,0,0,.05),0 4px 14px rgba(0,0,0,.06);
  --wrap:1160px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:"Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;font-size:17px;line-height:1.65;color:var(--ink);background:var(--bg)}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent-dark);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.25;color:#15181a;margin:0 0 .6em}
h1{font-size:clamp(26px,3.4vw,34px);font-weight:800;letter-spacing:-.3px}
h2{font-size:clamp(21px,2.4vw,25px);font-weight:750;margin-top:1.6em}
h3{font-size:19px;font-weight:700;margin-top:1.4em}
p{margin:0 0 1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:0;background:#fff;padding:8px 12px;z-index:100}
.skip:focus{left:10px}

/* ---- üst bilgi şeridi ---- */
.topbar{background:#171816;color:#b9bdb6;font-size:14px}
.topbar .wrap{display:flex;gap:22px;align-items:center;min-height:38px;flex-wrap:wrap}
.topbar a{color:#dfe2dc}
.topbar .badge{margin-left:auto;color:#f0c38e;font-weight:600;letter-spacing:.2px}
.topbar svg{width:15px;height:15px;vertical-align:-2px;margin-right:6px;fill:currentColor;opacity:.8}

/* ---- navigasyon ---- */
.nav{background:var(--dark);position:sticky;top:0;z-index:50;border-bottom:1px solid #000;box-shadow:0 2px 10px rgba(0,0,0,.25)}
.nav .wrap{display:flex;align-items:center;gap:18px;min-height:68px}
.brand{display:flex;align-items:center;gap:12px;color:#fff;text-decoration:none!important}
.brand img{width:62px;height:auto;border-radius:6px}
.brand b{display:block;font-size:19px;letter-spacing:1.5px;font-weight:800;line-height:1.1}
.brand small{display:block;font-size:13px;color:#c9ccc5;letter-spacing:.4px}
.menu{margin-left:auto;display:flex;list-style:none;padding:0;margin-top:0;margin-bottom:0}
.menu>li{position:relative}
.menu>li>a{display:block;padding:22px 15px;color:var(--dark-ink);font-weight:600;font-size:15.5px;text-decoration:none;border-bottom:3px solid transparent}
.menu>li>a:hover,.menu>li:focus-within>a{color:#fff}
.menu>li.active>a{border-bottom-color:var(--accent);color:#fff}
.menu .has-sub>a::after{content:"";display:inline-block;margin-left:7px;border:5px solid transparent;border-top-color:currentColor;border-bottom:0;vertical-align:2px;opacity:.8}
.sub{position:absolute;top:100%;left:0;min-width:270px;background:#fff;list-style:none;margin:0;padding:8px 0;border-radius:0 0 10px 10px;box-shadow:0 12px 30px rgba(0,0,0,.18);opacity:0;visibility:hidden;transform:translateY(6px);transition:.18s}
.menu>li:hover>.sub,.menu>li:focus-within>.sub{opacity:1;visibility:visible;transform:none}
.sub a{display:block;padding:9px 20px;color:var(--ink);font-size:15.5px;text-decoration:none}
.sub a:hover,.sub a[aria-current]{background:var(--accent-soft);color:var(--accent-dark)}
.burger{display:none;white-space:nowrap;align-items:center;margin-left:auto;background:none;border:1px solid #555;border-radius:8px;color:#fff;padding:9px 12px;font:inherit;font-size:15px;cursor:pointer}
.burger span{display:inline-block;width:18px;height:2px;background:#fff;position:relative;vertical-align:4px;margin-right:8px}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#fff}
.burger span::before{top:-6px}.burger span::after{top:6px}

/* ---- başlık bandı (eski site banner'ları) ---- */
.band{background:radial-gradient(ellipse at 50% 0%,#3a3d38 0%,var(--dark) 70%);padding:22px 0}
.slides{position:relative;max-width:940px;margin:0 auto;aspect-ratio:940/170;border-radius:10px;overflow:hidden;box-shadow:0 8px 28px rgba(0,0,0,.45);background:#2f312e}
.slides img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity 1.1s ease}
.slides img.on{opacity:1}

/* ---- içerik düzeni ---- */
.crumbs{font-size:14px;color:var(--muted);padding:18px 0 0}
.crumbs a{color:var(--muted)}
.crumbs span{margin:0 7px;opacity:.6}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:30px;padding:18px 0 56px}
.content{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:34px 38px}
.content>*:last-child{margin-bottom:0}
.content hr{border:0;border-top:1px solid var(--line);margin:28px 0}
.lead{font-size:19px;color:#30363a}
.float-img{float:right;width:min(42%,300px);margin:4px 0 16px 26px}
.float-img img{border-radius:10px}
.clear{clear:both}
.note{background:var(--accent-soft);border-left:4px solid var(--accent);padding:16px 20px;border-radius:8px;font-weight:600;color:#6b3f0f}
.figure{margin:0 0 1.2em}
.figure img{border-radius:10px}
.figure figcaption{font-size:14px;color:var(--muted);margin-top:6px}

/* ---- yan sütun ---- */
.side{display:flex;flex-direction:column;gap:22px}
.box{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px 22px}
.box h2{font-size:17px;margin:0 0 12px;text-transform:uppercase;letter-spacing:.8px;color:#15181a}
.box ul{list-style:none;margin:0;padding:0}
.box li a{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:8px;color:var(--ink);font-size:16px;text-decoration:none}
.box li a::before{content:"";width:7px;height:7px;border-radius:50%;background:#c9ced2;flex:none}
.box li a:hover{background:var(--bg)}
.box li a[aria-current]{background:var(--accent-soft);color:var(--accent-dark);font-weight:650}
.box li a[aria-current]::before{background:var(--accent)}
.marshall{text-align:center}
.marshall img{margin:0 auto 10px;width:172px}
.marshall p{margin:0;font-size:15px;color:var(--muted)}
.marshall strong{display:block;color:var(--ink);font-size:15.5px}
.contact-box p{margin:0 0 10px;font-size:15.5px}
.btn{display:inline-block;background:var(--accent);color:#fff!important;font-weight:700;padding:11px 20px;border-radius:9px;text-decoration:none!important;transition:background .15s}
.btn:hover{background:var(--accent-dark)}
.btn.ghost{background:transparent;border:2px solid #fff}
.btn.ghost:hover{background:rgba(255,255,255,.1)}

/* ---- galeri ---- */
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:12px;margin:14px 0 26px}
.gallery a{display:block;position:relative;border-radius:10px;overflow:hidden;background:#dfe3e6;aspect-ratio:4/3}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.gallery a:hover img{transform:scale(1.05)}
.gallery a::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 1px rgba(0,0,0,.06);border-radius:10px}
.gallery .cap{position:absolute;left:0;right:0;bottom:0;padding:18px 10px 7px;font-size:13.5px;color:#fff;background:linear-gradient(transparent,rgba(0,0,0,.65))}
.gcount{font-size:14px;color:var(--muted);margin:-6px 0 0}

/* ---- video ---- */
.video{margin:18px 0 26px;border-radius:12px;overflow:hidden;background:#000;box-shadow:var(--shadow)}
.video video{display:block;width:100%;height:auto;max-height:78vh;background:#000}
.video.portrait{max-width:380px}

/* ---- harita ---- */
.map{border-radius:12px;overflow:hidden;box-shadow:var(--shadow);aspect-ratio:16/10;background:#dfe3e6}
.map iframe{width:100%;height:100%;border:0;display:block}

/* ---- kartlar ---- */
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;color:var(--ink);text-decoration:none!important;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-3px);box-shadow:0 10px 26px rgba(0,0,0,.12)}
.card .ph{aspect-ratio:4/3;background:#dfe3e6;overflow:hidden}
.card .ph img{width:100%;height:100%;object-fit:cover}
.card .ph.text{display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#2d302c,#4a4e48);color:#f0c38e;font-size:28px;font-weight:800;letter-spacing:1px;text-align:center;padding:10px}
.card .tx{padding:16px 18px 18px}
.card h3{margin:0 0 4px;font-size:18px}
.card p{margin:0;font-size:15px;color:var(--muted)}
.card .more{margin-top:auto;padding:0 18px 16px;font-weight:700;font-size:15px;color:var(--accent-dark)}
.content .cards{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:10px}

/* ---- anasayfa ---- */
.home section{padding:54px 0}
.home section.alt{background:#fff}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;flex-wrap:wrap}
.sec-head h2{margin:0}
.sec-head p{margin:4px 0 0;color:var(--muted)}
.kicker{display:block;font-size:13px;font-weight:800;letter-spacing:1.6px;text-transform:uppercase;color:var(--accent-dark);margin-bottom:6px}
.intro{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.intro .lead{margin-bottom:1.2em}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:24px 0}
.fact{background:var(--bg);border-radius:10px;padding:14px 12px;text-align:center}
.fact b{display:block;font-size:26px;color:var(--accent-dark);line-height:1.1}
.fact span{font-size:13.5px;color:var(--muted)}
.intro-img{position:relative}
.intro-img img{border-radius:14px;box-shadow:0 14px 34px rgba(0,0,0,.18)}
.intro-img .tag{position:absolute;left:-16px;bottom:22px;background:#fff;border-radius:10px;padding:10px 14px;box-shadow:var(--shadow);display:flex;gap:10px;align-items:center;font-size:14px;font-weight:650;max-width:260px}
.intro-img .tag img{width:64px;border-radius:4px;box-shadow:none}
.feature{display:grid;grid-template-columns:340px 1fr;gap:40px;align-items:center}
.feature .video{margin:0}
.cta{background:linear-gradient(120deg,#232522,#3b3e39);color:#e9ebe7;border-radius:16px;padding:34px 38px;display:flex;gap:26px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cta h2{color:#fff;margin:0 0 6px}
.cta p{margin:0;color:#c9ccc5}
.cta .acts{display:flex;gap:12px;flex-wrap:wrap}

/* ---- iletişim ---- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:10px 0 28px}
.cinfo{background:var(--bg);border-radius:10px;padding:18px 20px}
.cinfo h3{margin:0 0 6px;font-size:14px;text-transform:uppercase;letter-spacing:1px;color:var(--muted)}
.cinfo p{margin:0;font-size:17px;font-weight:600}
.cinfo.wide{grid-column:1/-1}

/* ---- alt bilgi ---- */
footer{background:var(--dark);color:#b9bdb6;font-size:15.5px}
footer .cols{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:36px;padding:46px 0 34px}
footer h2{color:#fff;font-size:15px;text-transform:uppercase;letter-spacing:1.2px;margin:0 0 14px}
footer a{color:#e3e6df}
footer ul{list-style:none;margin:0;padding:0}
footer li{margin:0 0 7px}
footer .brand{margin-bottom:12px}
footer .legal{border-top:1px solid #3a3d38;padding:16px 0;font-size:14px;display:flex;gap:16px;flex-wrap:wrap;justify-content:space-between}

/* ---- lightbox ---- */
.lb{position:fixed;inset:0;background:rgba(10,11,10,.93);z-index:200;display:none;align-items:center;justify-content:center;flex-direction:column}
.lb.open{display:flex}
.lb img{max-width:92vw;max-height:80vh;width:auto;height:auto;border-radius:6px;box-shadow:0 10px 40px rgba(0,0,0,.5);user-select:none}
.lb .lb-cap{color:#ddd;margin-top:14px;font-size:15px;text-align:center;padding:0 60px;min-height:22px}
.lb button{position:absolute;background:rgba(255,255,255,.12);border:0;color:#fff;width:52px;height:52px;border-radius:50%;font-size:28px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center}
.lb button:hover{background:rgba(255,255,255,.25)}
.lb .lb-x{top:18px;right:18px}
.lb .lb-p{left:18px;top:50%;margin-top:-26px}
.lb .lb-n{right:18px;top:50%;margin-top:-26px}
body.lb-on{overflow:hidden}

/* ---- duyarlı ---- */
@media (max-width:1000px){
  .layout{grid-template-columns:1fr}
  .side{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
  .cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .intro,.feature{grid-template-columns:1fr}
  .feature .video{max-width:380px;margin:0 auto}
  footer .cols{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .burger{display:flex}
  .menu{display:none;position:absolute;left:0;right:0;top:100%;background:var(--dark);flex-direction:column;padding:6px 0 14px;max-height:calc(100vh - 68px);overflow:auto;border-top:1px solid #3a3d38}
  .nav.open .menu{display:flex}
  .menu>li>a{padding:12px 20px;border-bottom:0}
  .menu>li.active>a{color:var(--accent)}
  .menu .has-sub>a::after{display:none}
  .sub{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;background:transparent;padding:0 0 6px;min-width:0}
  .sub a{color:#c9ccc5;padding:7px 20px 7px 36px;font-size:15px}
  .sub a:hover,.sub a[aria-current]{background:transparent;color:#fff}
  .topbar .badge{display:none}
}
@media (max-width:620px){
  body{font-size:16.5px}
  .wrap{padding:0 16px}
  .band{padding:12px 0}
  .band .wrap{padding:0 10px}
  .slides{border-radius:6px}
  .content{padding:22px 18px}
  .float-img{float:none;width:100%;max-width:340px;margin:0 auto 18px}
  .cards,.content .cards{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr);gap:8px}
  .facts{grid-template-columns:repeat(3,1fr);gap:8px}
  .fact b{font-size:21px}
  .contact-grid{grid-template-columns:1fr}
  footer .cols{grid-template-columns:1fr}
  .topbar .wrap{gap:14px;font-size:13.5px}
  .brand img{width:50px}
  .brand b{font-size:14.5px;letter-spacing:.8px}
  .brand{gap:9px}
  .burger{padding:8px 11px;font-size:14px}
  .intro-img>img{aspect-ratio:4/3;object-fit:cover;width:100%}
  .brand small{font-size:12px}
  .intro-img .tag{left:10px}
  .cta{padding:26px 22px}
  .lb .lb-p,.lb .lb-n{top:auto;bottom:18px;margin:0}
  .lb .lb-cap{padding:0 20px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}