/* ============ ÇELİKEL — ortak stil dosyası ============ */
:root{
  --bg:#ffffff;
  --bg-alt:#f5f5f3;
  --bg-card:#ffffff;
  --border:#e3e3e0;
  --text:#0d0d0d;
  --text-muted:#63636a;
  --accent:#0d0d0d;
  --accent-text:#ffffff;
  --stripe-a:#0d0d0d;
  --stripe-b:#ffffff;
  --radius:2px;
  --maxw:1240px;
  --shadow:0 10px 30px rgba(0,0,0,0.06);
}
[data-theme="dark"]{
  --bg:#0c0c0d;
  --bg-alt:#161617;
  --bg-card:#1a1a1c;
  --border:#2b2b2e;
  --text:#f2f2f0;
  --text-muted:#9c9ca0;
  --accent:#ffffff;
  --accent-text:#0c0c0d;
  --stripe-a:#ffffff;
  --stripe-b:#0c0c0d;
  --shadow:0 10px 30px rgba(0,0,0,0.5);
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'IBM Plex Sans',sans-serif;
  font-size:16px;
  line-height:1.6;
  overflow-x:hidden;
  transition:background .3s ease,color .3s ease;
}
h1,h2,h3,h4{
  font-family:'Oswald',sans-serif;
  text-transform:uppercase;
  letter-spacing:0.02em;
  line-height:1.08;
  font-weight:700;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px;}
.eyebrow{
  font-family:'IBM Plex Mono',monospace;
  font-size:13px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--text-muted);
  display:flex;align-items:center;gap:10px;
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--text);display:block;}

/* hazard stripe - signature element, mono */
.hazard{
  height:14px;
  background:repeating-linear-gradient(135deg, var(--stripe-a) 0 18px, var(--stripe-b) 18px 36px);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.hazard.thin{height:6px;border:none;}

/* ============ HEADER ============ */
header{
  position:fixed;top:0;left:0;right:0;z-index:200;
  border-bottom:1px solid var(--border);
}
/* the blur lives on a pseudo-element, not on header itself: backdrop-filter on an
   ancestor turns it into the containing block for any position:fixed descendant,
   which was trapping the mobile nav/mega panels inside the 78px header strip
   instead of letting them cover the full viewport. */
header::before{
  content:"";
  position:absolute;inset:0;z-index:-1;
  background:rgba(255,255,255,0.86);
  backdrop-filter:blur(10px);
  transition:background .3s ease;
}
[data-theme="dark"] header::before{background:rgba(12,12,13,0.86);}
.nav{
  max-width:var(--maxw);margin:0 auto;padding:0 32px;
  height:78px;display:flex;align-items:center;justify-content:space-between;
  position:relative;
}
.brand{display:flex;align-items:center;gap:10px;}
.brand img{height:30px;width:auto;filter:none;transition:filter .3s;}
[data-theme="dark"] .brand img{filter:invert(1);}

.navlinks{display:flex;gap:8px;align-items:center;}
.navlinks > a, .navlinks > .navbtn{
  font-size:14px;text-transform:uppercase;letter-spacing:0.08em;font-weight:500;
  color:var(--text);
  position:relative;padding:10px 14px;
  transition:opacity .2s;
  background:none;border:none;font-family:'IBM Plex Sans',sans-serif;cursor:pointer;
  display:flex;align-items:center;gap:6px;
}
.navlinks > a:hover, .navlinks > .navbtn:hover{opacity:0.6;}
.caret{width:9px;height:9px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);margin-top:-3px;transition:transform .25s;}
.navbtn.open .caret{transform:rotate(225deg);margin-top:3px;}

.icon-btn{
  width:38px;height:38px;border:1px solid var(--border);border-radius:50%;
  display:flex;align-items:center;justify-content:center;cursor:pointer;background:none;color:var(--text);
  transition:border-color .2s,transform .2s;
}
.icon-btn:hover{border-color:var(--text);transform:translateY(-1px);}
.icon-btn svg{width:17px;height:17px;}
.icon-btn .icon-moon{display:none;}
[data-theme="dark"] .icon-btn .icon-sun{display:none;}
[data-theme="dark"] .icon-btn .icon-moon{display:block;}

.nav-right{display:flex;align-items:center;gap:12px;}
.nav-cta{
  display:flex;align-items:center;gap:8px;
  font-family:'IBM Plex Mono',monospace;font-size:13.5px;font-weight:500;
  border:1px solid var(--border);padding:9px 16px;border-radius:var(--radius);
  transition:border-color .2s;
}
.nav-cta:hover{border-color:var(--text);}
.menu-btn{display:none;width:44px;height:44px;align-items:center;justify-content:center;background:none;border:none;color:var(--text);font-size:22px;cursor:pointer;flex:none;}
.mobile-call{display:none;}

/* mega menu */
.mega{
  position:absolute;top:100%;left:0;right:0;
  background:var(--bg);border-bottom:1px solid var(--border);
  box-shadow:var(--shadow);
  padding:36px 0 40px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.mega.open{opacity:1;visibility:visible;transform:translateY(0);}
.mega-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--border);border:1px solid var(--border);max-width:var(--maxw);margin:0 auto;}
.mega-item{
  background:var(--bg);padding:22px 18px;display:flex;flex-direction:column;gap:12px;
  transition:background .2s;
}
.mega-item:hover{background:var(--bg-alt);}
.mega-item .mi{width:28px;height:28px;color:var(--text);}
.mega-item b{font-size:14px;text-transform:uppercase;letter-spacing:0.03em;font-family:'Oswald',sans-serif;}
.mega-item span{font-size:12.5px;color:var(--text-muted);}
.mega-item .mgo{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--text-muted);margin-top:auto;display:flex;align-items:center;gap:6px;}

/* ============ HERO ============ */
.hero{
  position:relative;
  min-height:88vh;
  display:flex;align-items:center;
  padding-top:78px;
  background:var(--bg);
  border-bottom:1px solid var(--border);
  overflow:hidden;
}
.hero-grid-lines{
  position:absolute;inset:0;
  background-image:linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 70% 60% at 70% 40%, black 0%, transparent 75%);
  opacity:0.6;
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:660px;}
.hero h1{
  font-size:clamp(38px,5.6vw,64px);
  color:var(--text);
  margin-bottom:22px;
}
.hero h1 em{font-style:normal;text-decoration:underline;text-decoration-thickness:3px;text-underline-offset:8px;}
.hero p{font-size:18px;color:var(--text-muted);max-width:520px;margin-bottom:34px;}
.btn-row{display:flex;gap:16px;flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:15px 26px;
  font-family:'IBM Plex Mono',monospace;
  font-size:14px;font-weight:500;letter-spacing:0.04em;text-transform:uppercase;
  border-radius:var(--radius);
  cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.btn-primary{background:var(--accent);color:var(--accent-text);border:1px solid var(--accent);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow);}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--border);}
.btn-ghost:hover{border-color:var(--text);transform:translateY(-2px);}

.hero-stats{display:flex;gap:44px;margin-top:56px;padding-top:32px;border-top:1px solid var(--border);max-width:560px;}
.hero-stats div b{display:block;font-family:'Oswald',sans-serif;font-size:30px;font-weight:700;}
.hero-stats div span{font-size:12.5px;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.06em;}

/* small page hero (category pages) */
.pagehero{padding:150px 0 60px;background:var(--bg);border-bottom:1px solid var(--border);}
.breadcrumb{font-family:'IBM Plex Mono',monospace;font-size:12.5px;color:var(--text-muted);display:flex;gap:8px;margin-bottom:20px;flex-wrap:wrap;}
.breadcrumb a:hover{color:var(--text);}
.pagehero h1{font-size:clamp(32px,5vw,52px);}
.pagehero p{color:var(--text-muted);margin-top:16px;max-width:600px;font-size:16.5px;}

/* ============ SECTION ============ */
section{padding:120px 0;position:relative;}
.section-head{max-width:640px;margin-bottom:64px;}
.section-head h2{font-size:clamp(30px,4vw,44px);}
.section-head p{color:var(--text-muted);margin-top:16px;font-size:16.5px;}

/* products (home) */
#urunler{background:var(--bg-alt);}
.grid5{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--border);border:1px solid var(--border);}
.pcard{background:var(--bg-alt);display:flex;flex-direction:column;transition:background .25s;cursor:pointer;overflow:hidden;}
.pcard:hover{background:var(--bg-card);}
.pcard-photo{width:100%;aspect-ratio:4/3;overflow:hidden;background:var(--bg-card);border-bottom:1px solid var(--border);}
.pcard-photo img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s ease;}
.pcard:hover .pcard-photo img{transform:scale(1.04);}
.pcard .pcontent{padding:24px 24px 28px;display:flex;flex-direction:column;flex:1;}
.pcard .picon{width:26px;height:26px;margin-bottom:16px;color:var(--text);}
.pcard .ptag{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--text-muted);letter-spacing:0.1em;margin-bottom:10px;}
.pcard h3{font-size:16.5px;margin-bottom:12px;}
.pcard p{font-size:14px;color:var(--text-muted);flex:1;}
.pcard .plink{margin-top:20px;font-family:'IBM Plex Mono',monospace;font-size:12px;display:flex;align-items:center;gap:6px;opacity:0;transform:translateY(6px);transition:opacity .25s, transform .25s;}
.pcard:hover .plink{opacity:1;transform:translateY(0);}

/* category grid on category pages */
.catgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);border:1px solid var(--border);}
.catitem{background:var(--bg);transition:background .2s;overflow:hidden;}
.catitem:hover{background:var(--bg-alt);}
.cat-photo{width:100%;aspect-ratio:4/3;overflow:hidden;background:var(--bg-alt);border-bottom:1px solid var(--border);}
.cat-photo img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s ease;}
.catitem:hover .cat-photo img{transform:scale(1.04);}
.cat-content{padding:26px;}
.catitem .cnum{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--text-muted);display:block;margin-bottom:16px;}
.catitem h4{font-size:17px;margin-bottom:10px;}
.catitem p{font-size:14px;color:var(--text-muted);}

/* graceful fallback for product photos that are not uploaded yet */
.cat-photo.img-missing,.pcard-photo.img-missing{
  display:flex;align-items:center;justify-content:center;
  background:repeating-linear-gradient(135deg, var(--bg-alt) 0 14px, var(--bg-card) 14px 28px);
}
.cat-photo.img-missing::after,.pcard-photo.img-missing::after{
  content:"Görsel Yakında";
  font-family:'IBM Plex Mono',monospace;
  font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--text-muted);background:var(--bg);
  padding:6px 10px;border:1px solid var(--border);border-radius:var(--radius);
}

/* why / tags */
.tags{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.tag-item{position:relative;border:1px dashed var(--border);border-radius:10px;padding:30px 22px 26px;background:var(--bg-card);}
.tag-item::before{content:"";position:absolute;top:16px;right:16px;width:8px;height:8px;border-radius:50%;background:var(--bg);border:1px solid var(--border);}
.tag-item .tnum{font-family:'IBM Plex Mono',monospace;color:var(--text-muted);font-size:12px;margin-bottom:14px;display:block;}
.tag-item h4{font-size:16px;margin-bottom:10px;}
.tag-item p{font-size:13.5px;color:var(--text-muted);}

/* cta band */
.ctaband{background:var(--bg-alt);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:70px 0;}
.ctaband .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.ctaband h3{font-size:26px;max-width:520px;}
.ctaband h3 u{text-decoration-thickness:3px;text-underline-offset:6px;}

/* contact */
#iletisim{background:var(--bg);}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:start;}
.info-list{display:flex;flex-direction:column;gap:26px;margin-top:34px;}
.info-item{display:flex;gap:16px;align-items:flex-start;}
.info-item .ic{width:38px;height:38px;flex:none;border:1px solid var(--border);border-radius:6px;display:flex;align-items:center;justify-content:center;color:var(--text);}
.info-item b{display:block;font-size:13px;margin-bottom:3px;letter-spacing:0.02em;text-transform:uppercase;font-family:'IBM Plex Mono',monospace;font-weight:500;}
.info-item span{font-size:15px;color:var(--text-muted);}

form{display:flex;flex-direction:column;gap:16px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
input,textarea,select{
  width:100%;background:var(--bg-alt);border:1px solid var(--border);color:var(--text);
  padding:14px 16px;font-family:'IBM Plex Sans',sans-serif;font-size:14.5px;border-radius:var(--radius);
  transition:border-color .2s;
}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--text);}
textarea{resize:vertical;min-height:110px;}
label{font-size:12px;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.08em;font-family:'IBM Plex Mono',monospace;margin-bottom:6px;display:block;}

/* footer */
footer{background:var(--bg-alt);padding:56px 0 30px;border-top:1px solid var(--border);}
.foot-top{display:flex;justify-content:space-between;align-items:flex-start;gap:40px;flex-wrap:wrap;margin-bottom:40px;}
.foot-brand .brand{margin-bottom:14px;}
.foot-brand p{color:var(--text-muted);font-size:14px;max-width:320px;}
.foot-cols{display:flex;gap:70px;flex-wrap:wrap;}
.foot-col h5{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--text-muted);letter-spacing:0.1em;text-transform:uppercase;margin-bottom:16px;}
.foot-col a{display:block;font-size:14px;color:var(--text-muted);margin-bottom:10px;transition:color .2s;}
.foot-col a:hover{color:var(--text);}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding-top:26px;border-top:1px solid var(--border);font-size:12.5px;color:var(--text-muted);font-family:'IBM Plex Mono',monospace;}

.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease, transform .7s ease;}
.reveal.in{opacity:1;transform:translateY(0);}

@media(max-width:980px){
  .grid5{grid-template-columns:repeat(2,1fr);}
  .catgrid{grid-template-columns:repeat(2,1fr);}
  .tags{grid-template-columns:repeat(2,1fr);}
  .contact-grid{grid-template-columns:1fr;}
  .mega-grid{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:720px){
  .navlinks{position:fixed;top:78px;left:0;right:0;bottom:0;background:var(--bg);
    flex-direction:column;align-items:stretch;padding:20px 24px;gap:0;overflow-y:auto;
    transform:translateX(100%);transition:transform .3s ease;z-index:1;}
  .navlinks.mobopen{transform:translateX(0);}
  .navlinks > a, .navlinks > .navbtn{width:100%;padding:16px 0;border-bottom:1px solid var(--border);justify-content:space-between;}
  .menu-btn{display:flex;}
  .nav-cta{display:none;}
  .mobile-call{display:flex;}
  /* mega menu becomes its own full-height overlay so it doesn't stack on top of the mobile nav panel awkwardly */
  .mega{position:fixed;top:78px;left:0;right:0;bottom:0;padding:24px 0 40px;overflow-y:auto;box-shadow:none;z-index:2;}
  .mega-grid{grid-template-columns:1fr;}
  .hero-stats{gap:26px;flex-wrap:wrap;}
  .form-row{grid-template-columns:1fr;}
  .foot-top{flex-direction:column;}
  section{padding:80px 0;}
  .tags{grid-template-columns:1fr;}
  .pagehero{padding:120px 0 48px;}
  /* iOS Safari auto-zooms on inputs under 16px */
  input,textarea,select{font-size:16px;}
  .info-item span{overflow-wrap:break-word;word-break:break-word;}
  /* product grids stay 2-up on mobile instead of stacking to a single column */
  .cat-content{padding:16px;}
  .catitem h4{font-size:15px;}
  .catitem p{font-size:12.5px;}
  .catitem .cnum{margin-bottom:10px;}
  .pcard .pcontent{padding:16px 16px 20px;}
  .pcard h3{font-size:14.5px;margin-bottom:8px;}
  .pcard p{font-size:12.5px;}
  .pcard .picon{width:22px;height:22px;margin-bottom:10px;}
}
@media(max-width:480px){
  .wrap{padding:0 20px;}
  .nav{padding:0 20px;}
  .brand img{height:26px;}
  .hero h1{font-size:clamp(32px,9vw,44px);}
  .pagehero{padding:110px 0 40px;}
  .hero-stats{gap:20px;}
  .ctaband{padding:50px 0;}
}

html.no-scroll,html.no-scroll body{overflow:hidden;height:100%;}