/* ============================================================
   ŞEFİKOĞLU DİŞLİ — tasarım sistemi
   Zemin: kırık beyaz | Çelik lacivert-siyah | Metalik gri | bakır kırıntısı
   Tipografi: tek aile (IBM Plex) — Sans Condensed (büyük başlıklar, sade ve
   sıkı), Sans (gövde + kart başlıkları), Mono (teknik veri/etiketler).
   ============================================================ */

:root {
  --zemin: #FAFAF9;
  --zemin-koyu: #F1F1EF;
  --celik: #14161F;
  --celik-2: #1C1F2B;
  --metal: #9CA0A6;
  --metal-acik: #D8DADC;
  --bakir: #8A6D3B;
  --cizgi: #E3E3E0;
  --metin: #23252F;
  --metin-soluk: #6B6E76;

  --f-display: "IBM Plex Sans Condensed", "Arial Narrow", Arial, sans-serif;
  --f-govde: "IBM Plex Sans", "Segoe UI", Arial, sans-serif;
  --f-mono: "IBM Plex Mono", "Consolas", monospace;

  --genislik: 1180px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

html { color-scheme: light; }

body {
  font-family: var(--f-govde);
  background:
    linear-gradient(90deg, rgba(20,22,31,0.035) 1px, transparent 1px),
    linear-gradient(rgba(20,22,31,0.035) 1px, transparent 1px),
    var(--zemin);
  background-size: 44px 44px, 44px 44px, auto;
  color: var(--metin);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.kap { max-width: var(--genislik); margin: 0 auto; padding: 0 24px; }

:focus-visible { outline: 2px solid var(--bakir); outline-offset: 3px; }

/* ---------- kaydırma animasyonu (scroll-reveal) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.35s ease, transform 0.35s ease;
  transition-delay: calc(var(--i, 0) * 0.025s);
}
.reveal.aktif { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- başlık tipografisi ---------- */
h1, h2 { font-family: var(--f-display); color: var(--celik); font-weight: 700; }
h3 { font-family: var(--f-govde); color: var(--celik); font-weight: 700; }

.eyebrow {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--bakir);
  display: block;
  margin-bottom: 14px;
}

/* ---------- üst bar ---------- */
.ustbar {
  border-bottom: 1px solid var(--cizgi);
  background: rgba(250, 250, 249, 0.92);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 50;
}
.ustbar-ic {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.marka-blok { display: flex; align-items: center; gap: 14px; }
.marka-blok img { width: 44px; height: 44px; }
.marka-adi {
  font-family: var(--f-govde);
  font-weight: 700;
  letter-spacing: 0.14em;
  font-size: 16px;
  color: var(--celik);
  line-height: 1.1;
}
.marka-adi span {
  display: block;
  font-family: var(--f-mono);
  font-weight: 400;
  font-size: 10px;
  letter-spacing: 0.5em;
  color: var(--metal);
  margin-top: 2px;
}
.nav { display: flex; gap: 34px; }
.nav a {
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--metin-soluk);
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}
.nav a:hover { color: var(--celik); }
.nav a.aktif { color: var(--celik); border-bottom-color: var(--bakir); }

/* ---------- mobil menü (hamburger) ---------- */
.menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
}
.menu-btn span { display: block; width: 100%; height: 2px; background: var(--celik); transition: transform 0.2s ease, opacity 0.2s ease, width 0.2s ease; }
.menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); width: 100%; }
.menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); width: 100%; }

/* ---------- hero ---------- */
.hero {
  padding: 96px 0 84px;
  position: relative;
  overflow: hidden;
}
.hero-ic { position: relative; z-index: 1; max-width: 640px; }
.hero h1 {
  font-size: clamp(34px, 5.6vw, 58px);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.08;
  margin-bottom: 22px;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(120deg, var(--metal) 0%, var(--metal-acik) 55%, var(--metal) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p { font-size: 17px; color: var(--metin-soluk); max-width: 480px; margin-bottom: 34px; }

/* arka planda dev, çok soluk dönen dişli */
.hero-disli {
  position: absolute;
  right: -140px;
  top: 50%;
  translate: 0 -50%;
  width: 520px;
  height: 520px;
  opacity: 0.07;
  animation: don 90s linear infinite;
  pointer-events: none;
}
@keyframes don { to { transform: rotate(360deg); } }

.dugme {
  display: inline-block;
  font-family: var(--f-govde);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 15px 34px;
  background: var(--celik);
  color: var(--zemin);
  border: 1px solid var(--celik);
  transition: background 0.15s, color 0.15s;
}
.dugme:hover { background: transparent; color: var(--celik); }
.dugme.sade {
  background: transparent;
  color: var(--celik);
  border-color: var(--metal);
  margin-left: 12px;
}
.dugme.sade:hover { border-color: var(--celik); }

/* ---------- bölüm iskeleti ---------- */
.bolum { padding: 72px 0; }
.bolum + .bolum { border-top: 1px solid var(--cizgi); }
.bolum-baslik { margin-bottom: 40px; }
.bolum-baslik h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---------- marka kartları ---------- */
.marka-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 20px;
}
.marka-kart {
  border: 1px solid var(--cizgi);
  background: #fff;
  padding: 34px 26px 26px;
  position: relative;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.marka-kart:hover {
  border-color: var(--metal);
  box-shadow: 0 10px 30px rgba(20, 22, 31, 0.07);
}
.marka-kart::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 34px; height: 2px;
  background: var(--bakir);
}
.marka-harf {
  font-family: var(--f-display);
  font-size: 42px;
  font-weight: 700;
  color: var(--metal-acik);
  line-height: 1;
  margin-bottom: 18px;
}
.marka-logo-kutu {
  height: 52px;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
}
.marka-logo-kutu img { max-height: 100%; max-width: 140px; width: auto; object-fit: contain; transition: transform 0.35s ease; }
.marka-kart:hover .marka-logo-kutu img { transform: scale(1.06); }
.marka-kart h3 {
  font-size: 18px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.marka-kart .adet {
  font-family: var(--f-mono);
  font-size: 12.5px;
  color: var(--metin-soluk);
}

/* ---------- vitrin (kayan ürün bandı) bölümü: tonlu zemin + desenler ---------- */
.kayan-desen {
  position: absolute;
  border: 18px solid var(--celik);
  border-radius: 50%;
  opacity: 0.045;
  pointer-events: none;
}
.kayan-desen-1 { width: 380px; height: 380px; left: -160px; top: -140px; }
.kayan-desen-2 { width: 260px; height: 260px; right: -100px; bottom: -110px; }
.kayan-desen-3 {
  width: 140px; height: 140px;
  right: 8%; top: -60px;
  border-width: 10px;
  border-color: var(--bakir);
  opacity: 0.08;
}

/* ---------- üretim galerisi (Üretimlerimiz sayfası) ---------- */
.uretim-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 10px;
}
.uretim-kart {
  display: block;
  width: 100%;
  padding: 0;
  border: 1px solid var(--cizgi);
  background: #fff;
  cursor: zoom-in;
  aspect-ratio: 1;
  overflow: hidden;
  transition: border-color 0.15s;
}
.uretim-kart:hover { border-color: var(--metal); }
.uretim-kart img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.35s ease; }
.uretim-kart:hover img { transform: scale(1.08); }

.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(20, 22, 31, 0.92);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 40px;
  cursor: zoom-out;
}
.lightbox.acik { display: flex; }
.lightbox img { max-width: 100%; max-height: 100%; }
.lightbox-kapat {
  position: absolute;
  top: 20px; right: 24px;
  background: none;
  border: none;
  color: #fff;
  font-size: 32px;
  line-height: 1;
  cursor: pointer;
}

/* ---------- ana sayfa: atölyeden galeri şeridi ---------- */
.atolyeden-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}
.atolyeden-kart {
  border: 1px solid var(--cizgi);
  background: #fff;
  aspect-ratio: 4/3;
  overflow: hidden;
}
.atolyeden-kart img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.35s ease; }
.atolyeden-kart:hover img { transform: scale(1.06); }

/* site genelinde ürün görsellerinin üzerine gelince hafifçe büyümesi
   (yaklaşma hissi) — kutu her zaman overflow:hidden olmalı ki taşmasın */
.kayan-bolum { position: relative; padding: 72px 0; overflow: hidden; background: var(--zemin-koyu); }
.kayan-sarmal { overflow: hidden; width: 100%; margin-top: 36px; }
.kayan-bant { display: flex; width: max-content; animation: kayma 70s linear infinite; }
.kayan-bant:hover { animation-play-state: paused; }
@keyframes kayma { to { transform: translateX(-50%); } }
.kayan-oge { display: block; width: 200px; flex-shrink: 0; padding: 0 14px; text-align: center; }
.kayan-gorsel {
  aspect-ratio: 1;
  background: #fff;
  border: 1px solid var(--cizgi);
  overflow: hidden;
  margin-bottom: 12px;
}
.kayan-gorsel img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.35s ease; }
.kayan-oge:hover .kayan-gorsel img { transform: scale(1.06); }
.kayan-logo { max-height: 26px; max-width: 110px; width: auto; margin: 0 auto; object-fit: contain; }
@media (prefers-reduced-motion: reduce) {
  .kayan-bant { animation: none; overflow-x: auto; }
}

/* ---------- ürünler sayfası: sol filtre paneli ---------- */
.urunler-duzen {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
  align-items: start;
}
.filtre-yan {
  position: sticky;
  top: 96px;
  border: 1px solid var(--cizgi);
  background: #fff;
  padding: 22px 20px;
}
/* katlanabilir filtre bölümleri (Ürün Tipi / Marka) */
.filtre-grup + .filtre-grup { margin-top: 6px; border-top: 1px solid var(--zemin-koyu); padding-top: 6px; }
.filtre-baslik-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 10px 0;
  background: none;
  border: none;
  font-family: var(--f-govde);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--celik);
  cursor: pointer;
}
.filtre-ok { color: var(--metin-soluk); transition: transform 0.15s; font-size: 11px; }
.filtre-baslik-btn.kapali .filtre-ok { transform: rotate(-90deg); }
.filtre-govde { overflow: hidden; max-height: 900px; transition: max-height 0.2s ease; }
.filtre-govde.kapali { max-height: 0; }

.filtre-marka-arama { margin-bottom: 10px; width: 100%; font-size: 13px; padding: 8px 10px; }
.filtre-satir {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 6px 0;
  font-size: 13.5px;
  cursor: pointer;
  color: var(--metin);
}
/* tüm checkbox'lar (kategori/marka/model) tek tip, özel çizilmiş kutucuk —
   tarayıcıdan tarayıcıya farklı görünen native checkbox yerine tutarlı görünüm */
.filtre-satir input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 15px;
  height: 15px;
  min-width: 15px;
  border: 1.5px solid var(--metal);
  border-radius: 2px;
  background: #fff;
  flex-shrink: 0;
  cursor: pointer;
  position: relative;
  margin: 0;
  transition: border-color 0.15s, background 0.15s;
}
.filtre-satir input[type="checkbox"]:hover { border-color: var(--celik); }
.filtre-satir input[type="checkbox"]:checked { background: var(--celik); border-color: var(--celik); }
.filtre-satir input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 0px;
  width: 4px;
  height: 8px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.filtre-satir span:nth-of-type(1) { flex: 1; }
.filtre-adet {
  font-family: var(--f-mono);
  font-size: 11.5px;
  color: var(--metin-soluk);
}
#filtre-marka {
  max-height: 360px;
  overflow-y: auto;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* eski Edge */
}
#filtre-marka::-webkit-scrollbar { display: none; } /* Chrome/Opera/Safari */
.filtre-model-liste {
  margin: 2px 0 6px 15px;
  padding-left: 10px;
  border-left: 2px solid var(--cizgi);
}
.filtre-model { font-size: 12.5px; padding: 4px 0; color: var(--metin-soluk); }

.filtre-temizle {
  display: block;
  width: 100%;
  margin-top: 18px;
  padding: 10px;
  background: none;
  border: 1px solid var(--cizgi);
  color: var(--metin-soluk);
  font-family: var(--f-govde);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.filtre-temizle:hover { border-color: var(--celik); color: var(--celik); }

/* uygulanan filtre etiketleri (sonuç alanının üstünde) */
.uygulanan-filtreler {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.filtre-etiket {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: var(--zemin-koyu);
  border: 1px solid var(--cizgi);
  font-family: var(--f-govde);
  font-size: 12.5px;
  color: var(--metin);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.filtre-etiket:hover { border-color: var(--celik); color: var(--celik); }
.filtre-etiket span { color: var(--metin-soluk); font-size: 14px; line-height: 1; }

.filtre-mobil-btn { display: none; }
@media (max-width: 860px) {
  .urunler-duzen { grid-template-columns: 1fr; }
  .filtre-yan { position: static; display: none; }
  .filtre-yan.acik { display: block; }
  .filtre-mobil-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    margin-bottom: 16px;
    padding: 13px 16px;
    background: #fff;
    border: 1px solid var(--cizgi);
    font-family: var(--f-govde);
    font-size: 13.5px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--celik);
    cursor: pointer;
  }
  .filtre-mobil-btn .filtre-ok { transition: transform 0.15s; }
  .filtre-mobil-btn[aria-expanded="true"] .filtre-ok { transform: rotate(180deg); }
}

/* ---------- ürün kartları: teknik plaka ---------- */
.urun-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.urun-kart {
  border: 1px solid var(--cizgi);
  background: #fff;
  position: relative;
  transition: border-color 0.15s, box-shadow 0.15s;
  display: flex;
  flex-direction: column;
}
.urun-kart:hover {
  border-color: var(--metal);
  box-shadow: 0 12px 34px rgba(20, 22, 31, 0.08);
}
.urun-gorsel-kutu {
  position: relative;
  background: var(--zemin-koyu);
  aspect-ratio: 1;
  overflow: hidden;
}
.urun-gorsel-kutu img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.35s ease; }
.urun-kart:hover .urun-gorsel-kutu img { transform: scale(1.06); }
/* teknik plaka köşe işaretleri */
.urun-gorsel-kutu::before,
.urun-gorsel-kutu::after {
  content: "";
  position: absolute;
  width: 14px; height: 14px;
  border: 1.5px solid var(--metal);
  pointer-events: none;
}
.urun-gorsel-kutu::before { top: 10px; left: 10px; border-right: 0; border-bottom: 0; }
.urun-gorsel-kutu::after { bottom: 10px; right: 10px; border-left: 0; border-top: 0; }
/* damgalı diş sayısı */
.dis-damga {
  position: absolute;
  bottom: 12px;
  left: 12px;
  font-family: var(--f-mono);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: 0.06em;
  color: var(--celik);
  background: rgba(250, 250, 249, 0.88);
  border: 1px solid var(--metal);
  padding: 3px 10px;
}
.urun-bilgi { padding: 18px 20px 20px; flex: 1; }
.urun-bilgi .tur {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--bakir);
  display: block;
  margin-bottom: 6px;
}
.urun-bilgi h3 {
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}
.urun-bilgi .ozet {
  font-family: var(--f-mono);
  font-size: 12.5px;
  color: var(--metin-soluk);
}

/* ---------- filtre / arama ---------- */
.arac-cubugu {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 34px;
}
.filtre-dugme {
  font-family: var(--f-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 9px 18px;
  border: 1px solid var(--cizgi);
  background: #fff;
  color: var(--metin-soluk);
  cursor: pointer;
  transition: all 0.15s;
}
.filtre-dugme:hover { border-color: var(--metal); color: var(--celik); }
.filtre-dugme.aktif {
  background: var(--celik);
  border-color: var(--celik);
  color: var(--zemin);
}
.arama-kutu {
  font-family: var(--f-mono);
  font-size: 13.5px;
  padding: 10px 16px;
  border: 1px solid var(--cizgi);
  background: #fff;
  color: var(--metin);
  min-width: 240px;
}
.arama-kutu:focus { outline: none; border-color: var(--metal); }
.arama-kutu::placeholder { color: var(--metal); }

/* ---------- ürün detay ---------- */
.detay-yerlesim {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 56px;
  align-items: start;
}
.detay-gorsel {
  position: relative;
  border: 1px solid var(--cizgi);
  background: var(--zemin-koyu);
  overflow: hidden;
  cursor: zoom-in;
}
.detay-gorsel img { width: 100%; aspect-ratio: 1; object-fit: cover; transition: transform 0.35s ease; }
.detay-gorsel:hover img { transform: scale(1.06); }
.detay-gorsel::before,
.detay-gorsel::after {
  content: "";
  position: absolute;
  width: 22px; height: 22px;
  border: 1.5px solid var(--metal);
  pointer-events: none;
}
.detay-gorsel::before { top: 14px; left: 14px; border-right: 0; border-bottom: 0; }
.detay-gorsel::after { bottom: 14px; right: 14px; border-left: 0; border-top: 0; }

.kucuk-gorseller {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}
.kucuk-gorsel {
  width: 72px;
  height: 72px;
  padding: 0;
  border: 1px solid var(--cizgi);
  background: var(--zemin-koyu);
  cursor: pointer;
  overflow: hidden;
  transition: border-color 0.15s;
}
.kucuk-gorsel img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.35s ease; }
.kucuk-gorsel:hover img { transform: scale(1.1); }
.kucuk-gorsel:hover { border-color: var(--metal); }
.kucuk-gorsel.aktif { border-color: var(--celik); }

.detay-bilgi .tur {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--bakir);
  display: block;
  margin-bottom: 12px;
}
.detay-bilgi h1 {
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  line-height: 1.12;
  margin-bottom: 18px;
}
.detay-bilgi .aciklama { color: var(--metin-soluk); margin-bottom: 30px; max-width: 460px; }

/* teknik tablo: makinist etiketi */
.teknik-tablo { border: 1px solid var(--cizgi); background: #fff; margin-bottom: 30px; }
.teknik-tablo table { width: 100%; border-collapse: collapse; }
.teknik-tablo th, .teknik-tablo td { padding: 13px 18px; text-align: left; }
.teknik-tablo tr + tr { border-top: 1px solid var(--cizgi); }
.teknik-tablo th {
  font-family: var(--f-mono);
  font-weight: 400;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--metin-soluk);
  width: 42%;
}
.teknik-tablo td {
  font-family: var(--f-mono);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--celik);
}
.teknik-tablo td .buyuk-dis { font-size: 21px; color: var(--bakir); }

.iletisim-cagri {
  border-left: 2px solid var(--bakir);
  padding: 14px 20px;
  background: var(--zemin-koyu);
  font-size: 14.5px;
  color: var(--metin-soluk);
}

/* ---------- Hakkımızda / İletişim: metin + görsel sunumu ---------- */
.hakkimizda-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.hakkimizda-hero-gorsel {
  border: 1px solid var(--cizgi);
  overflow: hidden;
  aspect-ratio: 4/3;
}
.hakkimizda-hero-gorsel img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.35s ease; }
.hakkimizda-hero-gorsel:hover img { transform: scale(1.05); }
.hakkimizda-lead {
  font-size: 18px;
  line-height: 1.7;
  color: var(--metin);
  max-width: 620px;
}
.hakkimizda-kapanis {
  text-align: center;
  font-family: var(--f-display);
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--celik);
  max-width: 720px;
  margin: 0 auto;
}
.kapanis-serit {
  position: relative;
  background: var(--celik);
  padding: 64px 0;
  overflow: hidden;
}
.kapanis-serit .hakkimizda-kapanis { color: #fff; }
.kapanis-serit .alt-not { text-align: center; margin-top: 14px; color: var(--metal-acik); font-size: 14px; }
.kapanis-serit .alt-not a { color: #fff; }

@media (max-width: 860px) {
  .hakkimizda-hero { grid-template-columns: 1fr; }
}

/* ---------- İletişim: aksiyon kartları + talep paneli ---------- */
.iletisim-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.iletisim-kart {
  position: relative;
  display: block;
  border: 1px solid var(--cizgi);
  background: #fff;
  padding: 28px 26px;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}
.iletisim-kart:hover {
  border-color: var(--metal);
  box-shadow: 0 14px 34px rgba(20, 22, 31, 0.08);
  transform: translateY(-2px);
}
.iletisim-kart::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 40px; height: 3px;
  background: var(--bakir);
}
.iletisim-kart.iletisim-vurgu::before { background: var(--celik); width: 100%; }
.iletisim-etiket {
  display: block;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--metin-soluk);
  margin-bottom: 12px;
}
.iletisim-deger {
  display: block;
  font-family: var(--f-display);
  font-size: 24px;
  font-weight: 600;
  color: var(--celik);
  letter-spacing: 0.02em;
}
.iletisim-deger-kucuk { font-size: 16px; word-break: break-all; }
.iletisim-alt { display: block; margin-top: 10px; font-size: 13px; color: var(--metin-soluk); line-height: 1.5; }

.talep-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  background: var(--zemin-koyu);
  border-left: 3px solid var(--bakir);
  padding: 40px 44px;
}
.talep-panel h2 { margin: 10px 0 14px; }
.talep-panel .hakkimizda-lead { font-size: 15.5px; margin: 0; }

/* İletişim: harita önizlemesi — tıklanınca Google Maps'e gider */
.harita-kutu {
  position: relative;
  display: block;
  border: 1px solid var(--cizgi);
  overflow: hidden;
  aspect-ratio: 16/6;
  cursor: pointer;
}
.harita-kutu iframe { width: 100%; height: 100%; border: 0; pointer-events: none; display: block; }
.harita-buton {
  position: absolute;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--celik);
  color: #fff;
  padding: 12px 26px;
  font-family: var(--f-govde);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background 0.15s;
}
.harita-kutu:hover .harita-buton { background: var(--bakir); }

/* ---------- neden biz ---------- */
.ozellik-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 42px;
}
.ozellik .no {
  font-family: var(--f-mono);
  font-size: 13px;
  color: var(--metal);
  letter-spacing: 0.2em;
  display: block;
  margin-bottom: 12px;
}
.ozellik h3 {
  font-size: 16px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.ozellik p { font-size: 14.5px; color: var(--metin-soluk); }

/* ---------- boş durum ---------- */
.bos-durum {
  padding: 64px 24px;
  text-align: center;
  border: 1px dashed var(--cizgi);
  color: var(--metin-soluk);
  font-family: var(--f-mono);
  font-size: 14px;
}

/* ---------- geri linki ---------- */
.geri {
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--metin-soluk);
  display: inline-block;
  margin-bottom: 28px;
}
.geri:hover { color: var(--celik); }

/* ---------- altbilgi ---------- */
.altbilgi {
  border-top: 1px solid var(--cizgi);
  background: var(--celik);
  color: var(--metal-acik);
  padding: 52px 0 40px;
  margin-top: 72px;
}
.altbilgi-ic {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: space-between;
  align-items: flex-start;
}
.altbilgi .marka-adi { color: var(--zemin); }
.altbilgi .marka-adi span { color: var(--metal); }
.altbilgi-nav { display: flex; flex-direction: column; gap: 10px; }
.altbilgi-nav a {
  font-size: 13.5px;
  color: var(--metal);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.altbilgi-nav a:hover { color: var(--zemin); }
.altbilgi .telif {
  width: 100%;
  margin-top: 36px;
  padding-top: 22px;
  border-top: 1px solid rgba(216, 218, 220, 0.14);
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--metal);
}
.altbilgi .telif .imza {
  float: right;
  color: var(--metal-acik);
  opacity: 0.65;
}
@media (max-width: 480px) {
  .altbilgi .telif .imza { float: none; display: block; margin-top: 6px; }
}

/* ---------- sayfa başlığı bandı ---------- */
.sayfa-bandi {
  padding: 56px 0 44px;
  border-bottom: 1px solid var(--cizgi);
}
.sayfa-bandi h1 {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.sayfa-bandi p { color: var(--metin-soluk); margin-top: 10px; max-width: 560px; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .detay-yerlesim { grid-template-columns: 1fr; gap: 32px; }
  .hero { padding: 64px 0 56px; }
  .hero-disli { width: 380px; height: 380px; right: -180px; }
}
@media (max-width: 780px) {
  .menu-btn { display: flex; }
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--zemin);
    border-bottom: 1px solid var(--cizgi);
    box-shadow: 0 14px 24px rgba(20, 22, 31, 0.08);
    padding: 6px 24px 16px;
  }
  .nav.acik { display: flex; }
  .nav a { font-size: 14.5px; padding: 13px 0; border-bottom: 1px solid var(--zemin-koyu); width: 100%; }
  .nav a:last-child { border-bottom: none; }
}
@media (max-width: 640px) {
  .dugme.sade { margin-left: 0; margin-top: 10px; }
  .arama-kutu { min-width: 100%; }
  .urun-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .urun-bilgi { padding: 12px 12px 14px; }
  .urun-bilgi h3 { font-size: 13.5px; }
  .urun-bilgi .ozet { font-size: 11px; }
  .urun-bilgi .tur { font-size: 10px; margin-bottom: 4px; }
  .dis-damga { font-size: 14px; padding: 2px 7px; bottom: 8px; left: 8px; }
  .uretim-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .marka-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .marka-kart { padding: 22px 16px 18px; }
  .talep-panel { padding: 28px 24px; }
}
@media (max-width: 480px) {
  .ustbar-ic { height: 60px; }
  .marka-blok img { width: 34px; height: 34px; }
}