:root{
  --bg:#f7f7f7;--card:#ffffff;--ink:#0b0b0b;--muted:#696969;--line:#e2e2e2;
  --accent:#07317c;--accent-dark:#041f51;--radius:22px;--shadow:0 12px 34px rgba(0,0,0,.07);
}
*{box-sizing:border-box} html{scroll-behavior:smooth}
body{margin:0;font-family:"Montserrat",Arial,sans-serif;background:var(--bg);color:var(--ink)}
a{text-decoration:none;color:inherit} button,input,select,textarea{font:inherit}
.container{width:min(1320px,calc(100% - 40px));margin:auto}
.topbar{background:#0b0b0b;color:#fff;text-align:center;padding:9px 15px;font-size:13px}
header{background:rgba(245,245,242,.92);backdrop-filter:blur(14px);position:sticky;top:0;z-index:20;border-bottom:1px solid var(--line)}
.nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{font-size:24px;font-weight:900;letter-spacing:-1px}.logo span{font-weight:400}
nav{display:flex;gap:26px;font-size:14px}.nav-actions{display:flex;align-items:center;gap:10px}
.pill{padding:11px 16px;border:1px solid var(--line);border-radius:999px;background:#fff}
.hero{padding:56px 0 34px}.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}
.hero-copy,.hero-card{border-radius:32px;min-height:300px;padding:42px}
.hero-copy{background:#0b0b0b;color:#fff;display:flex;flex-direction:column;justify-content:flex-end}
.eyebrow{text-transform:uppercase;letter-spacing:.15em;font-size:12px;opacity:.7}
h1{font-size:clamp(42px,6vw,78px);line-height:.95;letter-spacing:-4px;margin:12px 0 18px}
.hero-copy p{color:#cfcfc9;max-width:620px;font-size:17px;line-height:1.6}
.hero-card{background:linear-gradient(135deg,#ffffff,#e9e9e9);position:relative;overflow:hidden}
.hero-card:before,.hero-card:after{content:"";position:absolute;border-radius:50%;background:#0b0b0b}
.hero-card:before{width:220px;height:220px;right:70px;top:35px}.hero-card:after{width:100px;height:100px;right:235px;top:130px;opacity:.25}
.hero-card b{position:absolute;bottom:40px;left:42px;font-size:30px;max-width:380px}
.catalog-layout{display:grid;grid-template-columns:260px 1fr;gap:30px;padding-bottom:70px}
.sidebar{position:sticky;top:102px;align-self:start;background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px}
.filter-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.filter-title h3{margin:0}
.filter-group{padding:18px 0;border-top:1px solid var(--line)}.filter-group:first-of-type{border-top:0}
.filter-group label{display:flex;align-items:center;gap:9px;margin:10px 0;color:#444;font-size:14px}
.filter-group input[type="checkbox"]{width:17px;height:17px;accent-color:var(--accent)}
.filter-group input[type="range"]{width:100%;accent-color:var(--accent)}
.reset{border:0;background:none;text-decoration:underline;cursor:pointer;color:var(--muted)}
.catalog-head{display:flex;justify-content:space-between;gap:18px;align-items:center;margin-bottom:20px}
.catalog-head h2{font-size:32px;margin:0;letter-spacing:-1.5px}.controls{display:flex;gap:10px}
.search,.sort{background:#fff;border:1px solid var(--line);border-radius:999px;padding:12px 16px}
.search{min-width:250px}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.product-card{background:var(--card);border:1px solid var(--line);border-radius:22px;overflow:hidden;transition:.25s;min-width:0}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.product-image{display:block;aspect-ratio:1.12;overflow:hidden;background:#ecece6;position:relative}
.product-image img{width:100%;height:100%;object-fit:cover;transition:.35s}.product-card:hover img{transform:scale(1.025)}
.badge{position:absolute;top:14px;left:14px;background:#0b0b0b;color:#fff;padding:7px 10px;border-radius:999px;font-size:11px}
.product-body{padding:18px}.meta{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.product-title{font-size:18px;font-weight:700;margin:8px 0}.product-short{font-size:13px;line-height:1.5;color:var(--muted);min-height:40px}
.price-row{display:flex;align-items:center;gap:9px;margin-top:15px}.price{font-size:19px;font-weight:800}.old-price{text-decoration:line-through;color:#999;font-size:13px}
.card-actions{display:grid;grid-template-columns:1fr auto;gap:8px;margin-top:16px}
.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:999px;padding:12px 16px;cursor:pointer;font-weight:700}
.btn-dark{background:#0b0b0b;color:#fff}.btn-light{background:#efefea;color:#0b0b0b}
.empty{grid-column:1/-1;padding:60px;text-align:center;background:#fff;border:1px solid var(--line);border-radius:22px;color:var(--muted)}
footer{background:#0b0b0b;color:#fff;padding:50px 0}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}.footer-grid p,.footer-grid a{color:#aaa;font-size:14px;line-height:1.8}
.detail{padding:54px 0 80px}.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:22px}
.detail-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:start}
.detail-image{background:#fff;border:1px solid var(--line);border-radius:30px;overflow:hidden}.detail-image img{width:100%;display:block}
.detail-info{padding:20px 0}.detail-info h1{color:#0b0b0b;font-size:54px;line-height:1;letter-spacing:-2.5px;margin:12px 0 18px}
.detail-desc{font-size:16px;line-height:1.8;color:var(--muted)}.detail-price{font-size:32px;font-weight:900;margin:24px 0}
.stock{display:inline-block;background:#e8eee8;padding:8px 11px;border-radius:999px;font-size:12px;margin-bottom:18px}
.features{border-top:1px solid var(--line);margin:26px 0;padding-top:22px}.features li{margin:10px 0;color:#4e4e49}
.cta-row{display:flex;gap:10px}.cta-row .btn{padding:15px 24px}.note{font-size:12px;color:var(--muted);margin-top:12px}
.contact{padding:54px 0 80px}.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px}
.contact-copy,.contact-form{background:#fff;border:1px solid var(--line);border-radius:28px;padding:34px}
.contact-copy h1{color:#0b0b0b;font-size:54px;letter-spacing:-2.5px}.contact-form label{display:block;font-size:13px;font-weight:700;margin:14px 0 7px}
.contact-form input,.contact-form textarea,.contact-form select{width:100%;padding:14px 15px;border-radius:13px;border:1px solid var(--line);background:#fafaf7}
.contact-form textarea{min-height:140px;resize:vertical}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.alert{padding:14px 16px;border-radius:14px;margin-bottom:18px;background:#edf3eb;color:#274326}.alert.error{background:#f7e7e7;color:#7a2525}
@media(max-width:1050px){.product-grid{grid-template-columns:repeat(2,1fr)}.catalog-layout{grid-template-columns:220px 1fr}.hero-grid{grid-template-columns:1fr}.detail-grid,.contact-grid{grid-template-columns:1fr}}
@media(max-width:760px){.container{width:min(100% - 24px,1320px)}nav{display:none}.hero{padding-top:28px}.hero-copy,.hero-card{min-height:260px;padding:26px}.hero-card{display:none}h1{letter-spacing:-2.5px}.catalog-layout{grid-template-columns:1fr}.sidebar{position:static}.catalog-head{align-items:stretch;flex-direction:column}.controls{flex-direction:column}.search{min-width:0}.product-grid{grid-template-columns:1fr}.detail-info h1,.contact-copy h1{font-size:42px}.footer-grid{grid-template-columns:1fr}.form-row{grid-template-columns:1fr}}


/* Premium KOSİYAP header */
.topbar{background:linear-gradient(90deg,#101316 0%,#171b20 55%,#0f1215 100%);color:#d9dde3;text-align:left;padding:0;border-bottom:1px solid rgba(255,255,255,.08);font-size:12px;letter-spacing:.01em}
.topbar-inner{height:34px;display:flex;align-items:center;justify-content:center;gap:9px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-inner a{color:#fff;font-weight:600;transition:opacity .2s}.topbar-inner a:hover{opacity:.72}
.topbar-dot{width:6px;height:6px;border-radius:50%;background:#2e6ac8;box-shadow:0 0 0 4px rgba(46,106,200,.12)}
.topbar-sep{opacity:.35}
.site-header{background:rgba(250,250,248,.88);backdrop-filter:blur(18px) saturate(145%);-webkit-backdrop-filter:blur(18px) saturate(145%);position:sticky;top:0;z-index:30;border-bottom:1px solid rgba(20,20,20,.08);box-shadow:0 8px 30px rgba(15,20,26,.035)}
.site-header .nav{height:92px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:28px}
.brand{display:inline-flex;align-items:center;width:max-content}
.brand img{display:block;width:176px;height:auto;max-height:72px;object-fit:contain;object-position:left center;filter:drop-shadow(0 5px 12px rgba(0,0,0,.04));transition:transform .25s ease,filter .25s ease}
.brand:hover img{transform:translateY(-1px);filter:drop-shadow(0 7px 15px rgba(0,0,0,.08))}
.main-nav{display:flex;align-items:center;justify-content:center;gap:8px;padding:5px;background:rgba(255,255,255,.64);border:1px solid rgba(18,18,18,.07);border-radius:999px;box-shadow:inset 0 1px 0 rgba(255,255,255,.9)}
.nav-link{position:relative;padding:10px 15px;border-radius:999px;color:#333941;font-size:13px;font-weight:650;transition:background .2s,color .2s,transform .2s}
.nav-link:hover{background:#fff;color:#0d1724;transform:translateY(-1px);box-shadow:0 5px 16px rgba(20,28,38,.06)}
.site-header .nav-actions{display:flex;justify-content:flex-end;align-items:center}
.premium-cta{display:inline-flex;align-items:center;gap:13px;padding:8px 8px 8px 18px;border-radius:999px;color:#fff;background:linear-gradient(135deg,#132136,#0e1622);border:1px solid rgba(14,22,34,.86);box-shadow:0 8px 22px rgba(15,30,50,.14),inset 0 1px 0 rgba(255,255,255,.12);font-size:13px;font-weight:700;transition:transform .2s,box-shadow .2s}
.premium-cta:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(15,30,50,.2),inset 0 1px 0 rgba(255,255,255,.12)}
.cta-arrow{width:31px;height:31px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#1f59b0,#356fca);font-size:14px;line-height:1}
@media(max-width:760px){
  .topbar-inner{justify-content:flex-start;font-size:11px}.topbar-sep,.topbar-inner>span:nth-of-type(2){display:none}
  .site-header .nav{height:78px;grid-template-columns:1fr auto;gap:14px}.brand img{width:140px;max-height:60px}.main-nav{display:none}.premium-cta{padding:7px 7px 7px 14px}.cta-arrow{width:29px;height:29px}
}


/* =========================================================
   KOSİYAP — Siyah / Beyaz / #07317c tema güncellemesi
   ========================================================= */
body{background:#f7f7f7;color:#0b0b0b}
::selection{background:#07317c;color:#fff}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(7,49,124,.18);outline-offset:2px
}

/* Premium Header */
.topbar{
  background:#090909;
  color:#d8d8d8;
  border-bottom:1px solid rgba(255,255,255,.1)
}
.topbar-inner a{color:#fff}
.topbar-dot{
  background:#07317c;
  box-shadow:0 0 0 4px rgba(7,49,124,.24)
}
.site-header{
  background:rgba(255,255,255,.94);
  border-bottom:1px solid #e6e6e6;
  box-shadow:0 10px 32px rgba(0,0,0,.045)
}
.site-header .nav{
  height:86px;
  display:flex;
  align-items:center;
  gap:22px
}
.brand{
  flex:0 0 auto;
  margin-right:auto
}
.brand img{
  width:126px;
  max-height:54px;
  object-fit:contain;
  object-position:left center;
  filter:none
}
.brand:hover img{
  transform:translateY(-1px);
  filter:none
}
.main-nav{
  margin-left:auto;
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:3px;
  padding:0;
  background:transparent;
  border:0;
  border-radius:0;
  box-shadow:none
}
.nav-link{
  color:#1c1c1c;
  font-size:13px;
  font-weight:700;
  letter-spacing:.01em;
  padding:11px 14px;
  border-radius:10px
}
.nav-link:hover{
  color:#07317c;
  background:#f4f6fa;
  transform:none;
  box-shadow:none
}
.nav-link:after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:5px;
  height:2px;
  border-radius:2px;
  background:#07317c;
  transform:scaleX(0);
  transform-origin:right;
  transition:transform .22s ease
}
.nav-link:hover:after{
  transform:scaleX(1);
  transform-origin:left
}
.site-header .nav-actions{
  flex:0 0 auto;
  justify-content:flex-end;
  margin-left:4px
}
.premium-cta{
  color:#fff;
  background:#0b0b0b;
  border:1px solid #0b0b0b;
  box-shadow:none;
  padding:8px 8px 8px 17px
}
.premium-cta:hover{
  background:#07317c;
  border-color:#07317c;
  transform:translateY(-1px);
  box-shadow:0 9px 22px rgba(7,49,124,.18)
}
.cta-arrow{
  background:#07317c;
  color:#fff
}
.premium-cta:hover .cta-arrow{
  background:#fff;
  color:#07317c
}

/* Hero */
.hero-copy{background:#0a0a0a}
.hero-copy .eyebrow{color:#86a8e5;opacity:1}
.hero-card{
  background:linear-gradient(145deg,#ffffff 0%,#efefef 72%,#e7ebf2 100%);
  border:1px solid #e3e3e3
}
.hero-card:before{background:#07317c}
.hero-card:after{background:#0b0b0b}

/* Katalog ve filtreler */
.sidebar,.product-card,.contact-copy,.contact-form,.detail-image{
  border-color:#e1e1e1
}
.filter-title h3,.catalog-head h2{color:#0b0b0b}
.filter-group input[type="checkbox"],
.filter-group input[type="range"]{accent-color:#07317c}
.reset:hover{color:#07317c}
.search:focus,.sort:focus,.contact-form input:focus,.contact-form textarea:focus,.contact-form select:focus{
  border-color:#07317c;
  box-shadow:0 0 0 3px rgba(7,49,124,.08)
}
.badge{
  background:#07317c;
  color:#fff
}
.product-title:hover{color:#07317c}
.product-card:hover{
  border-color:#ccd5e5;
  box-shadow:0 14px 34px rgba(0,0,0,.075)
}
.price{color:#0b0b0b}
.btn-dark{
  background:#0b0b0b;
  color:#fff
}
.btn-dark:hover{
  background:#07317c
}
.btn-light{
  background:#f0f0f0;
  color:#0b0b0b
}
.btn-light:hover{
  background:#e7ebf2;
  color:#07317c
}
.stock{
  background:#eef2f8;
  color:#07317c
}

/* Detay / iletişim */
.breadcrumb a:hover{color:#07317c}
.contact-form button[type="submit"]:hover{background:#07317c}
.alert{
  background:#eef2f8;
  color:#07317c
}

/* Footer */
footer{
  background:#090909;
  border-top:3px solid #07317c
}
footer .logo{color:#fff}
.footer-grid a:hover{color:#fff}

/* Mobil */
@media(max-width:760px){
  .site-header .nav{
    height:74px;
    grid-template-columns:none;
    display:flex
  }
  .brand img{
    width:105px;
    max-height:46px
  }
  .main-nav{display:none}
  .site-header .nav-actions{margin-left:auto}
  .premium-cta{
    padding:7px 7px 7px 13px;
    font-size:12px
  }
}


/* =========================================================
   KOSİYAP — Montserrat & sade header güncellemesi
   ========================================================= */

/* Google Fonts kullanılmadan sistemde Montserrat varsa doğrudan çalışır.
   Web font dosyası eklenirse tarayıcı onu kullanır; aksi halde Arial fallback devreye girer. */
html,body,
button,input,select,textarea{
  font-family:"Montserrat",Arial,sans-serif;
}

/* Üst siyah bilgi şeridi tamamen kaldırıldı */
.topbar{
  display:none !important;
}

/* Header artık sayfanın en üstünden başlar */
.site-header,
header{
  top:0;
}

/* Header tipografisini biraz daha premium ve dengeli tut */
.nav-link{
  font-family:"Montserrat",Arial,sans-serif;
  font-weight:600;
  letter-spacing:-0.01em;
}

.premium-cta,
.pill,
.btn{
  font-family:"Montserrat",Arial,sans-serif;
  font-weight:600;
}

.logo,
.brand{
  font-family:"Montserrat",Arial,sans-serif;
}

/* Montserrat'ın daha geniş metriklerine göre header dengesi */
.site-header .nav{
  height:82px;
}

.brand img{
  width:118px;
  max-height:50px;
}

@media(max-width:760px){
  .site-header .nav{
    height:72px;
  }
  .brand img{
    width:100px;
    max-height:44px;
  }
}


/* KOSİYAP Header v2 — daha büyük logo ve kurumsal CTA */
.site-header .nav{
  height:100px;
}

.brand img{
  width:155px;
  max-height:68px;
}

.premium-cta,
.site-header .pill{
  background:#07317c;
  border-color:#07317c;
  color:#ffffff;
}

.premium-cta:hover,
.site-header .pill:hover{
  background:#041f51;
  border-color:#041f51;
  color:#ffffff;
  box-shadow:0 9px 22px rgba(7,49,124,.20);
}

.premium-cta .cta-arrow{
  background:#ffffff;
  color:#07317c;
}

.premium-cta:hover .cta-arrow{
  background:#ffffff;
  color:#041f51;
}

@media(max-width:760px){
  .site-header .nav{
    height:82px;
  }
  .brand img{
    width:125px;
    max-height:56px;
  }
}