/* ==========================================================================
   FE İnşaat — "Mühendislik Defteri" (Technical Drawing) teması
   Konsept: mimari çizim / yapı ruhsatı estetiği — lacivert zemin, pirinç
   (brass) vurgu, ölçü çizgileri ve köşe kayıt işaretleri "mühendis mührü"
   gibi davranır. Rakamlı adımlama yerine teknik doküman referans kodları
   kullanılır (örn. N-01), çünkü içerik gerçek bir sıra değil bir kataloğu
   temsil ediyor.

   Yazı tipleri (HTML <head> içine eklenmeli):
   <link href="https://fonts.googleapis.com/css2?family=Big+Shoulders+Display:wght@600;700;800&family=IBM+Plex+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@500;600&display=swap" rel="stylesheet">
   ========================================================================== */

:root{
  --ink:#12161b;
  --ink-2:#1b232b;
  --steel:#28333d;
  --steel-2:#3a4a56;
  --brass:#ab7a35;
  --brass-dark:#8a611f;
  --brass-light:#c99a52;
  --brass-soft:#f3e6c9;
  --paper:#f3efe6;
  --paper-2:#e8e2d2;
  --line:#dad2bd;
  --ink-line:rgba(255,255,255,.10);
  --text:#1a1f24;
  --text-soft:#5c6570;
  --white:#ffffff;
  --radius:4px;
  --radius-lg:6px;
  --shadow:0 20px 44px -20px rgba(18,22,27,.4);
  --shadow-sm:0 10px 22px -14px rgba(18,22,27,.32);
  --grid: linear-gradient(var(--ink-line) 1px, transparent 1px) 0 0/34px 34px,
          linear-gradient(90deg, var(--ink-line) 1px, transparent 1px) 0 0/34px 34px;
  font-size:16px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'IBM Plex Sans',system-ui,-apple-system,Segoe UI,sans-serif;
  color:var(--text);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{
  font-family:'Big Shoulders Display',Inter,sans-serif;
  font-weight:700;
  text-transform:uppercase;
  color:var(--ink);
  line-height:1.05;
  margin:0 0 .5em;
  letter-spacing:.01em;
}
p{margin:0 0 1em;color:var(--text-soft);}
a{color:inherit;text-decoration:none;}
ul{list-style:none;margin:0;padding:0;}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;}
.wrap{width:min(1240px,92%);margin-inline:auto;}

.ikon{width:22px;height:22px;flex-shrink:0;}
.ikon-sm{width:17px;height:17px;flex-shrink:0;}

/* Mono utility text — kod, meta, etiket, ölçü */
.mono,.urun-birim,.meta-pill span,.footer-bottom-inner,.kat-count,.urun-badge{
  font-family:'IBM Plex Mono','Courier New',monospace;
}

/* ---------- Blueprint köşe işaretleri (imza öğesi) ---------- */
.blueprint{position:relative;}
.blueprint::before,.blueprint::after{
  content:"";position:absolute;width:16px;height:16px;
  border:2px solid var(--brass);pointer-events:none;
}
.blueprint::before{top:-1px;left:-1px;border-right:0;border-bottom:0;}
.blueprint::after{bottom:-1px;right:-1px;border-left:0;border-top:0;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55em;
  padding:.85em 1.6em;
  border-radius:var(--radius);
  font-weight:700;
  font-size:.86rem;
  letter-spacing:.03em;
  text-transform:uppercase;
  border:1.5px solid transparent;
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease, border-color .15s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--brass);color:var(--ink);box-shadow:0 10px 24px -10px rgba(171,122,53,.55);}
.btn-primary:hover{background:var(--brass-light);box-shadow:0 14px 28px -10px rgba(171,122,53,.6);}
.btn-outline{background:transparent;border-color:var(--ink-line);color:var(--white);}
.btn-outline:hover{border-color:var(--brass-light);color:var(--brass-light);}
.btn-ghost{background:var(--paper-2);color:var(--ink);}
.btn-ghost:hover{background:var(--line);}
.btn-block{width:100%;justify-content:center;}
.btn-sm{padding:.6em 1.15em;font-size:.76rem;}

/* ---------- Topbar ---------- */
.topbar{background:var(--ink);color:#aab0bd;font-size:.8rem;border-bottom:1px solid var(--ink-line);}
.topbar-inner{display:flex;align-items:center;gap:1.8em;padding:.55em 0;}
.topbar-item{display:flex;align-items:center;gap:.5em;}
.topbar-item a:hover{color:var(--brass-light);}
.topbar-right{margin-left:auto;color:#7d8492;font-family:'IBM Plex Mono',monospace;font-size:.78rem;}
.topbar-item .ikon-sm{color:var(--brass);}

/* ---------- Header ---------- */
.site-header{
  background:var(--white);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:60;
}
.header-inner{
  display:flex;align-items:center;gap:1.6em;
  padding:.9em 0;
}
.brand{display:flex;align-items:center;gap:.7em;flex-shrink:0;}
.brand-mark{
  display:grid;place-items:center;
  width:46px;height:46px;border-radius:var(--radius);
  background:var(--ink);color:var(--brass-light);
  font-family:'Big Shoulders Display',sans-serif;font-weight:800;font-size:1.3rem;
  position:relative;
  overflow:hidden;
  border:1px solid var(--ink-line);
}
.brand-mark::after{
  content:"";position:absolute;inset:3px;
  border:1px solid rgba(201,154,82,.45);
}
.brand-text{
  display:flex;flex-direction:column;line-height:1.1;
  font-family:'Big Shoulders Display',sans-serif;font-weight:700;color:var(--ink);
  font-size:1.25rem;text-transform:uppercase;
}
.brand-text em{font-style:normal;font-size:.62rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--brass-dark);font-family:'IBM Plex Mono',monospace;}

.main-nav ul{display:flex;align-items:center;gap:.3em;}
.main-nav a{
  display:block;padding:.6em .9em;border-radius:var(--radius);
  font-weight:600;font-size:.92rem;color:var(--text);
  transition:background .15s ease, color .15s ease;
}
.main-nav a:hover,.main-nav a.aktif{background:var(--paper-2);color:var(--brass-dark);}

.has-mega{position:relative;}
.mega{
  position:absolute;top:100%;left:50%;transform:translate(-50%,8px);
  width:640px;max-width:80vw;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  padding:1em;
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .18s ease, transform .18s ease;
  z-index:70;
}
.has-mega:hover .mega,.has-mega:focus-within .mega{
  opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0);
}
.mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.3em;}
.mega-item{
  display:flex;align-items:center;gap:.7em;
  padding:.7em .8em;border-radius:var(--radius);font-weight:600;font-size:.88rem;
  color:var(--text);
}
.mega-item .ikon-sm{color:var(--brass-dark);}
.mega-item:hover{background:var(--paper-2);color:var(--brass-dark);}

.header-search{
  display:flex;align-items:center;
  background:var(--paper-2);
  border-radius:var(--radius);
  padding:.3em .3em .3em 1.1em;
  flex:1;max-width:320px;
  border:1.5px solid transparent;
  transition:border-color .15s ease;
}
.header-search:focus-within{border-color:var(--brass);}
.header-search input{
  border:0;background:transparent;outline:none;
  flex:1;font-size:.9rem;font-family:inherit;color:var(--text);
}
.header-search button{
  display:grid;place-items:center;
  width:36px;height:36px;border-radius:calc(var(--radius) - 1px);border:0;
  background:var(--ink);color:var(--white);
}
.header-search button:hover{background:var(--brass);color:var(--ink);}

.header-cta{flex-shrink:0;}
.menu-toggle{
  display:none;background:none;border:0;color:var(--ink);padding:.4em;
}
.mobile-search{display:none;padding:0 0 .8em;}
.mobile-search form{display:flex;gap:.5em;background:var(--paper-2);border-radius:var(--radius);padding:.3em .3em .3em 1.1em;}
.mobile-search input{flex:1;border:0;background:transparent;outline:none;font-family:inherit;}
.mobile-search button{width:36px;height:36px;border-radius:calc(var(--radius) - 1px);border:0;background:var(--ink);color:var(--white);display:grid;place-items:center;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background:linear-gradient(165deg,var(--ink) 0%,var(--ink-2) 55%,var(--steel) 100%);
  color:var(--white);
  overflow:hidden;
  padding:5.5em 0 6em;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:var(--grid);
  mask-image:linear-gradient(180deg, rgba(0,0,0,.55), transparent 75%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;right:-6%;top:-15%;width:520px;height:520px;
  background:radial-gradient(circle,rgba(171,122,53,.22),transparent 70%);
  pointer-events:none;
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:3em;align-items:center;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:.6em;
  color:var(--brass-light);font-weight:600;font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;
  margin-bottom:1.1em;font-family:'IBM Plex Mono',monospace;
}
.hero-eyebrow::before{content:"";width:26px;height:1px;background:var(--brass-light);}
.hero h1{font-size:clamp(2.3rem,4.4vw,3.6rem);color:var(--white);max-width:15ch;}
.hero h1 span{color:var(--brass-light);}
.hero-lead{color:#b7bdc9;font-size:1.05rem;max-width:46ch;font-family:'IBM Plex Sans',sans-serif;}

/* Ölçü çizgisi — imza öğesi: mimari çizimlerdeki boyut çizgisi */
.hero-dim{
  display:flex;align-items:center;gap:.9em;margin:1.6em 0 1.8em;
  font-family:'IBM Plex Mono',monospace;color:#8b92a1;font-size:.78rem;letter-spacing:.04em;
}
.hero-dim::before,.hero-dim::after{content:"";flex:1;height:1px;background:var(--ink-line);position:relative;}
.hero-dim::before{background-image:linear-gradient(var(--ink-line),var(--ink-line)),linear-gradient(var(--ink-line),var(--ink-line));background-size:1px 6px;background-position:left center,right center;background-repeat:no-repeat;}
.hero-dim span{white-space:nowrap;color:var(--brass-light);}

.hero-actions{display:flex;gap:1em;flex-wrap:wrap;}
.hero-stats{display:flex;gap:2.2em;margin-top:3em;flex-wrap:wrap;}
.hero-stat b{display:block;font-family:'Big Shoulders Display',sans-serif;font-weight:800;font-size:1.9rem;color:var(--brass-light);}
.hero-stat span{font-size:.78rem;color:#8b92a1;font-family:'IBM Plex Mono',monospace;text-transform:uppercase;letter-spacing:.04em;}

.hero-panel{
  position:relative;
  background:var(--ink-2);
  border:1px solid var(--ink-line);
  border-radius:var(--radius-lg);
  padding:1.8em;
  box-shadow:var(--shadow);
}
.hero-panel-head{display:flex;align-items:center;gap:.8em;margin-bottom:1em;padding-bottom:1em;border-bottom:1px solid var(--ink-line);}
.hero-panel-head .ikon{color:var(--brass-light);width:28px;height:28px;}
.hero-panel-head strong{color:var(--white);font-family:'Big Shoulders Display',sans-serif;text-transform:uppercase;}
.hero-panel-head small{display:block;color:#8b92a1;font-size:.76rem;font-family:'IBM Plex Mono',monospace;}
.hero-panel-list{display:flex;flex-direction:column;gap:.75em;}
.hero-panel-list li{display:flex;align-items:center;gap:.7em;color:#d3d7de;font-size:.9rem;}
.hero-panel-list .ikon-sm{color:var(--brass-light);flex-shrink:0;}

/* ---------- Sections generic ---------- */
section{padding:5em 0;}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:2em;margin-bottom:2.4em;flex-wrap:wrap;}
.section-head h2{font-size:clamp(1.7rem,3.2vw,2.4rem);max-width:20ch;}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:.6em;
  color:var(--brass-dark);font-weight:600;font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;margin-bottom:.7em;
  font-family:'IBM Plex Mono',monospace;
}
.section-eyebrow::before{content:"";width:22px;height:1px;background:var(--brass-dark);}
.section-desc{color:var(--text-soft);max-width:52ch;}
.section-alt{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

/* ---------- Category grid ---------- */
.kat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4em;}
.kat-card{
  position:relative;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:1.8em 1.6em;
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
  overflow:hidden;
}
.kat-card::before,.kat-card::after{
  content:"";position:absolute;width:14px;height:14px;
  border:2px solid var(--brass);opacity:0;transition:opacity .18s ease;
}
.kat-card::before{top:8px;left:8px;border-right:0;border-bottom:0;}
.kat-card::after{bottom:8px;right:8px;border-left:0;border-top:0;}
.kat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:transparent;}
.kat-card:hover::before,.kat-card:hover::after{opacity:1;}
.kat-icon{
  display:grid;place-items:center;width:52px;height:52px;border-radius:var(--radius);
  background:var(--paper-2);color:var(--brass-dark);margin-bottom:1.1em;
}
.kat-card h3{font-size:1.15rem;margin-bottom:.4em;}
.kat-card p{font-size:.88rem;margin-bottom:1.1em;}
.kat-link{display:inline-flex;align-items:center;gap:.4em;font-weight:700;font-size:.8rem;color:var(--ink);text-transform:uppercase;letter-spacing:.03em;}
.kat-link .ikon-sm{width:15px;height:15px;transition:transform .15s ease;color:var(--brass-dark);}
.kat-card:hover .kat-link .ikon-sm{transform:translateX(4px);}
.kat-count{
  position:absolute;top:1.4em;right:1.5em;
  font-weight:600;color:var(--line);font-size:.85rem;letter-spacing:.02em;
}

/* ---------- Product grid / cards ---------- */
.urun-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4em;}
.urun-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;
  transition:box-shadow .18s ease, transform .18s ease;
}
.urun-card:hover{box-shadow:var(--shadow-sm);transform:translateY(-3px);}
.urun-media{
  position:relative;height:130px;
  background:linear-gradient(150deg,var(--ink) 0%,var(--steel) 100%);
  display:grid;place-items:center;
  overflow:hidden;
}
.urun-media::before{
  content:"";position:absolute;inset:0;
  background-image:var(--grid);background-size:17px 17px;opacity:.5;
}
.urun-media .ikon{width:38px;height:38px;color:var(--brass-light);position:relative;}
.urun-badge{
  position:absolute;top:.8em;left:.8em;
  background:rgba(171,122,53,.18);color:var(--brass-light);
  border:1px solid rgba(171,122,53,.45);
  font-size:.66rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  padding:.35em .7em;border-radius:2px;
}
.urun-body{padding:1.3em 1.4em 1.5em;display:flex;flex-direction:column;flex:1;}
.urun-kat{font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--brass-dark);margin-bottom:.4em;font-family:'IBM Plex Mono',monospace;}
.urun-body h3{font-size:1.08rem;margin-bottom:.3em;}
.urun-birim{font-size:.76rem;color:var(--text-soft);margin-bottom:.6em;display:flex;align-items:center;gap:.4em;}
.urun-birim::before{content:"";width:6px;height:6px;background:var(--brass);}
.urun-body p{font-size:.88rem;flex:1;margin-bottom:1.2em;}
.urun-actions{display:flex;gap:.6em;}

.urun-toolbar{display:flex;justify-content:space-between;align-items:center;gap:1em;margin-bottom:2em;flex-wrap:wrap;}
.urun-toolbar-search{display:flex;gap:.5em;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:.35em .35em .35em 1.1em;flex:1;max-width:380px;}
.urun-toolbar-search input{border:0;outline:none;flex:1;font-family:inherit;background:transparent;}
.urun-toolbar-search button{width:36px;height:36px;border-radius:calc(var(--radius) - 1px);border:0;background:var(--ink);color:#fff;display:grid;place-items:center;}
.urun-sayac{color:var(--text-soft);font-size:.86rem;font-family:'IBM Plex Mono',monospace;}

/* ---------- Category chip nav ---------- */
.kat-chips{display:flex;flex-wrap:wrap;gap:.6em;margin-bottom:2.4em;}
.kat-chip{
  padding:.6em 1.1em;border-radius:var(--radius);border:1.5px solid var(--line);
  font-size:.82rem;font-weight:600;color:var(--text);background:var(--white);
  display:flex;align-items:center;gap:.5em;
}
.kat-chip .ikon-sm{color:var(--brass-dark);}
.kat-chip:hover{border-color:var(--brass);color:var(--brass-dark);}
.kat-chip.aktif{background:var(--ink);border-color:var(--ink);color:var(--white);}
.kat-chip.aktif .ikon-sm{color:var(--brass-light);}

/* ---------- Breadcrumb ---------- */
.breadcrumb{background:var(--white);border-bottom:1px solid var(--line);}
.breadcrumb-inner{display:flex;align-items:center;gap:.5em;padding:.9em 0;font-size:.82rem;color:var(--text-soft);flex-wrap:wrap;font-family:'IBM Plex Mono',monospace;}
.breadcrumb-inner a:hover{color:var(--brass-dark);}
.breadcrumb-inner span{color:var(--line);}
.breadcrumb-inner strong{color:var(--ink);}

/* ---------- Page hero (small) ---------- */
.page-hero{
  background:linear-gradient(165deg,var(--ink) 0%,var(--ink-2) 100%);
  color:var(--white);padding:3.6em 0;position:relative;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;background-image:var(--grid);
  mask-image:linear-gradient(180deg, rgba(0,0,0,.5), transparent 80%);
}
.page-hero h1{color:var(--white);font-size:clamp(2rem,3.6vw,2.8rem);position:relative;}
.page-hero p{color:#a9aebb;max-width:56ch;position:relative;}

/* ---------- About page ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:3.5em;align-items:center;}
.about-visual{
  background:linear-gradient(160deg,var(--ink) 0%,var(--steel) 100%);
  border-radius:var(--radius-lg);padding:2.2em;color:#fff;position:relative;overflow:hidden;min-height:360px;
  display:flex;flex-direction:column;justify-content:center;gap:1.4em;
  border:1px solid var(--ink-line);
}
.about-visual::before{content:"";position:absolute;inset:0;background-image:var(--grid);opacity:.6;}
.about-visual-row{display:flex;align-items:center;gap:1em;position:relative;}
.about-visual-row .ikon{width:30px;height:30px;color:var(--brass-light);flex-shrink:0;}
.about-visual-row b{display:block;font-family:'Big Shoulders Display',sans-serif;color:#fff;text-transform:uppercase;}
.about-visual-row span{font-size:.84rem;color:#9aa0ac;}

.deger-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4em;margin-top:1em;}
.deger-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:1.8em;}
.deger-card .kat-icon{margin-bottom:1em;}

.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2em;margin-top:1em;}
.timeline-item{border-left:2px solid var(--brass);padding:.2em 0 .2em 1.1em;}
.timeline-item b{display:block;font-family:'Big Shoulders Display',sans-serif;font-weight:800;color:var(--brass-dark);font-size:1.5rem;}

/* ---------- Contact page ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:3em;align-items:start;}
.contact-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:1.6em;display:flex;gap:1em;align-items:flex-start;margin-bottom:1em;}
.contact-card .kat-icon{flex-shrink:0;margin-bottom:0;}
.contact-card h4{margin-bottom:.25em;font-size:1rem;text-transform:none;font-family:'IBM Plex Sans',sans-serif;font-weight:700;}
.contact-card p{margin:0;font-size:.9rem;}
.contact-map{
  margin-top:1em;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  height:200px;background-image:var(--grid);background-color:var(--paper);
  display:grid;place-items:center;color:var(--text-soft);font-size:.85rem;position:relative;
}
.contact-map .ikon{color:var(--brass-dark);width:30px;height:30px;margin-bottom:.4em;}

.form-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);padding:2.2em;box-shadow:var(--shadow-sm);position:relative;}
.form-panel h3{margin-bottom:.2em;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1em;}
.field{margin-bottom:1.1em;}
.field label{display:block;font-size:.8rem;font-weight:700;margin-bottom:.4em;color:var(--ink);text-transform:uppercase;letter-spacing:.03em;}
.field input,.field select,.field textarea{
  width:100%;padding:.8em .9em;border-radius:var(--radius);border:1.5px solid var(--line);
  font-family:inherit;font-size:.92rem;background:var(--paper);color:var(--text);
  transition:border-color .15s ease, background .15s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brass);background:var(--white);}
.field textarea{resize:vertical;min-height:110px;}
.field-hint{font-size:.76rem;color:var(--text-soft);margin-top:.3em;font-family:'IBM Plex Mono',monospace;}

.alert{
  display:flex;gap:.9em;align-items:flex-start;
  padding:1.1em 1.3em;border-radius:var(--radius);margin-bottom:1.6em;
}
.alert-success{background:#eaf3ec;border:1px solid #bcd8c2;color:#215934;}
.alert-success .ikon{color:#2f7a49;flex-shrink:0;}
.alert-success strong{display:block;margin-bottom:.15em;color:#184427;}
.alert-error{background:#fbebe9;border:1px solid #e8bcb6;color:#8c3324;}

/* ---------- Search page ---------- */
.search-empty{
  text-align:center;padding:4em 1em;background:var(--white);border:1px dashed var(--line);border-radius:var(--radius);
}
.search-empty .ikon{width:44px;height:44px;color:var(--line);margin:0 auto 1em;}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--ink),var(--ink-2));
  color:#fff;border-radius:var(--radius-lg);padding:3em;
  display:flex;justify-content:space-between;align-items:center;gap:2em;flex-wrap:wrap;
  position:relative;overflow:hidden;border:1px solid var(--ink-line);
}
.cta-band::before{content:"";position:absolute;inset:0;background-image:var(--grid);opacity:.35;mask-image:radial-gradient(circle at 20% 120%, black, transparent 60%);}
.cta-band h2{color:#fff;margin-bottom:.3em;position:relative;}
.cta-band p{color:#a9aebb;margin:0;position:relative;}
.cta-band .btn{position:relative;}

/* ---------- Product detail ---------- */
.urun-detay{display:grid;grid-template-columns:.85fr 1.15fr;gap:3em;align-items:flex-start;}
.urun-detay-media{
  background:linear-gradient(150deg,var(--ink),var(--steel));
  border-radius:var(--radius-lg);height:320px;display:grid;place-items:center;position:relative;overflow:hidden;
  border:1px solid var(--ink-line);
}
.urun-detay-media::before{content:"";position:absolute;inset:0;background-image:var(--grid);opacity:.5;}
.urun-detay-media .ikon{width:76px;height:76px;color:var(--brass-light);position:relative;}
.urun-detay-info .urun-kat{margin-bottom:.6em;}
.urun-detay-info h1{font-size:clamp(1.9rem,3.2vw,2.5rem);}
.urun-detay-meta{display:flex;gap:1.4em;margin:1.2em 0;flex-wrap:wrap;}
.meta-pill{background:var(--paper-2);border-radius:var(--radius);padding:.9em 1.2em;display:flex;flex-direction:column;gap:.2em;}
.meta-pill span{font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text-soft);font-weight:600;}
.meta-pill strong{font-family:'Big Shoulders Display',sans-serif;color:var(--ink);font-size:1.2rem;}
.urun-quote-box{
  margin-top:1.6em;padding:1.5em;border-radius:var(--radius);
  background:var(--brass-soft);border:1px solid #e3c68c;
}
.urun-quote-box p{color:#6e4c15;margin-bottom:1em;}
.benzer-baslik{margin-top:4em;}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#9aa0ac;margin-top:4em;border-top:3px solid var(--brass);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:2.5em;padding:4em 0 2.5em;}
.footer-col h4{color:#fff;font-size:.92rem;margin-bottom:1.1em;text-transform:uppercase;letter-spacing:.04em;font-family:'IBM Plex Sans',sans-serif;font-weight:700;}
.footer-col ul li{margin-bottom:.7em;}
.footer-col a:hover{color:var(--brass-light);}
.footer-brand p{color:#7d8492;font-size:.88rem;margin-top:1em;}
.footer-contact li{display:flex;align-items:center;gap:.6em;}
.footer-contact .ikon-sm{color:var(--brass-light);flex-shrink:0;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);}
.footer-bottom-inner{display:flex;justify-content:space-between;padding:1.3em 0;font-size:.76rem;color:#5f6672;flex-wrap:wrap;gap:.5em;}

/* ---------- Responsive ---------- */
@media (max-width:1000px){
  .hero-inner{grid-template-columns:1fr;}
  .hero-panel{order:-1;}
  .kat-grid,.urun-grid{grid-template-columns:repeat(2,1fr);}
  .about-grid,.contact-grid,.urun-detay{grid-template-columns:1fr;}
  .timeline{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:820px){
  .topbar-right{display:none;}
  .header-search{display:none;}
  .main-nav{
    position:fixed;inset:0 0 0 auto;width:min(320px,86vw);height:100vh;
    background:var(--white);box-shadow:-20px 0 40px rgba(0,0,0,.15);
    transform:translateX(100%);transition:transform .25s ease;
    padding:5.5em 1.5em 2em;overflow-y:auto;z-index:80;
  }
  .main-nav.acik{transform:translateX(0);}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:.2em;}
  .main-nav a{padding:.85em 1em;}
  .has-mega .mega{
    position:static;transform:none;opacity:1;visibility:visible;pointer-events:auto;
    display:none;box-shadow:none;border:0;width:auto;max-width:none;padding:.4em 0 .4em 1em;
  }
  .has-mega.acik .mega{display:block;}
  .mega-grid{grid-template-columns:1fr;}
  .menu-toggle{display:block;}
  .mobile-search{display:block;}
  .header-cta{display:none;}
  .header-inner{padding-bottom:.4em;}
  .kat-grid,.urun-grid{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .timeline{grid-template-columns:1fr 1fr;}
  .deger-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;text-align:center;}
}
@media (max-width:820px){
  .main-nav .menu-close{display:flex;}
}
.menu-close{display:none;position:absolute;top:1.2em;right:1.2em;background:none;border:0;color:var(--text-soft);align-items:center;justify-content:center;}
.nav-overlay{display:none;position:fixed;inset:0;background:rgba(18,22,27,.55);z-index:75;}
.nav-overlay.acik{display:block;}