/* =============================================================================
   HEADER — Sabit başlık, mega menü, mobil çekmece
   ========================================================================== */

/* -----------------------------------------------------------------------------
   1. Başlık kabuğu
   Anasayfada hero üzerinde şeffaf başlar, scroll ile katılaşır ve küçülür.
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-header);
  height: var(--header-h);
  background: var(--ivory);
  border-bottom: 1px solid var(--line-soft);
  transition: height var(--dur) var(--ease-out),
              background var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}

/* Anasayfa: hero üzerinde şeffaf */
.site-header--overlay {
  background: transparent;
  border-bottom-color: transparent;
}

/* Scroll sonrası durum */
.site-header.is-stuck {
  height: var(--header-h-sm);
  background: rgba(250, 246, 243, 0.88);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom-color: var(--line-soft);
  box-shadow: var(--sh-sm);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-6);
  height: 100%;
}

/* -----------------------------------------------------------------------------
   2. Logo
   -------------------------------------------------------------------------- */
.brand { display: flex; align-items: center; flex-shrink: 0; }
/* Açılışta logo büyük durur (Teklif Alın gizli olduğundan yer boştur) */
.brand img {
  width: auto;
  height: clamp(34px, 3.8vw, 52px);
  transition: height var(--dur) var(--ease-out), filter var(--dur) var(--ease);
}
/* Sticky başlıkta logo bir miktar küçülür ama okunur kalır (başlık 68px) */
.site-header.is-stuck .brand img { height: clamp(30px, 2.8vw, 40px); }

/* Şeffaf başlıkta koyu logo görünmez; beyaza çevrilir */
.site-header--overlay:not(.is-stuck) .brand img { filter: brightness(0) invert(1); }

/* -----------------------------------------------------------------------------
   3. Ana gezinme
   -------------------------------------------------------------------------- */
.nav { display: flex; align-items: center; height: 100%; }
.nav__list { display: flex; align-items: center; gap: clamp(1rem, 2.2vw, 2.4rem); height: 100%; margin: 0; padding: 0; list-style: none; }
.nav__item { position: relative; display: flex; align-items: center; height: 100%; margin: 0; }

.nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  height: 100%;
  color: var(--ink-600);
  font-size: var(--fs-xs);
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  white-space: nowrap;
  transition: color var(--dur-fast) var(--ease);
}

/* Alt çizgi hover'da ortadan dışa doğru açılır */
.nav__link::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  bottom: calc(50% - 0.95em);
  height: 1px;
  background: var(--rose-deep);
  transform: scaleX(0);
  transition: transform var(--dur) var(--ease-out);
}
.nav__item:hover > .nav__link::after,
.nav__link.is-active::after { transform: scaleX(1); }

.nav__link:hover, .nav__link.is-active { color: var(--ink); }

/* Açılır menüsü olan öğelerdeki küçük ok */
.nav__caret { font-size: 0.62rem; opacity: 0.55; transition: transform var(--dur) var(--ease); }
.nav__item:hover .nav__caret { transform: rotate(180deg); }

/* Şeffaf başlık renk uyarlaması */
.site-header--overlay:not(.is-stuck) .nav__link { color: rgba(255, 255, 255, 0.78); }
.site-header--overlay:not(.is-stuck) .nav__link:hover,
.site-header--overlay:not(.is-stuck) .nav__link.is-active { color: var(--white); }
.site-header--overlay:not(.is-stuck) .nav__link::after { background: var(--rose-soft); }

/* -----------------------------------------------------------------------------
   4. Basit açılır menü
   -------------------------------------------------------------------------- */
.dropdown {
  position: absolute;
  top: 100%; left: 50%;
  min-width: 232px;
  padding: var(--sp-4);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: var(--white);
  box-shadow: var(--sh-lg);
  list-style: none;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, 10px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease-out), visibility var(--dur);
}
.nav__item:hover > .dropdown,
.nav__item:focus-within > .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}
.dropdown li { margin: 0; }
.dropdown a {
  display: block;
  padding: 0.7rem 0.9rem;
  border-radius: var(--r-sm);
  color: var(--ink-600);
  font-size: var(--fs-sm);
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease),
              padding-left var(--dur-fast) var(--ease);
}
.dropdown a:hover { background: var(--rose-wash); color: var(--rose-deep); padding-left: 1.25rem; }

/* -----------------------------------------------------------------------------
   5. Mega menü — Ürünler
   -------------------------------------------------------------------------- */
.mega {
  position: fixed;
  top: var(--header-h);
  left: 0; right: 0;
  z-index: calc(var(--z-header) - 1);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background: var(--white);
  box-shadow: var(--sh-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease-out),
              visibility var(--dur), top var(--dur) var(--ease-out);
}
.site-header.is-stuck .mega { top: var(--header-h-sm); }
.nav__item:hover > .mega,
.nav__item:focus-within > .mega { opacity: 1; visibility: visible; transform: translateY(0); }

.mega__inner {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr) 220px;
  gap: clamp(1.75rem, 3.5vw, 3.5rem);
  padding-block: clamp(2rem, 3.5vw, 3.25rem);
}

/* Sağ sütun — tüm kumaşların hızlı listesi */
.mega__all { padding-left: clamp(1.5rem, 2.5vw, 2.5rem); border-left: 1px solid var(--line-soft); }
.mega__all-title {
  display: block;
  margin-bottom: var(--sp-3);
  font-size: var(--fs-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-400);
}
.mega__links--cols { columns: 2; column-gap: var(--sp-4); }

/* Sol tanıtım sütunu */
.mega__aside { padding-right: clamp(1.5rem, 3vw, 3rem); border-right: 1px solid var(--line-soft); }
.mega__aside h3 { margin-bottom: var(--sp-3); font-size: 1.75rem; }
.mega__aside p { margin-bottom: var(--sp-5); color: var(--ink-400); font-size: var(--fs-sm); }

/* Kategori kartları */
.mega__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1rem, 2vw, 1.75rem); }
.mega__card { display: block; border-radius: var(--r-md); overflow: hidden; }
.mega__card-media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--r-md);
  background: var(--sand);
}
.mega__card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.9s var(--ease-out); }
.mega__card:hover .mega__card-media img { transform: scale(1.07); }
.mega__card-media::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(20,16,14,0.55), rgba(20,16,14,0));
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}
.mega__card:hover .mega__card-media::after { opacity: 1; }

.mega__card-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  margin-top: var(--sp-3);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.3rem;
}
.mega__card-title i { font-size: 0.85rem; color: var(--rose-deep); opacity: 0; transform: translateX(-6px); transition: all var(--dur) var(--ease-out); }
.mega__card:hover .mega__card-title i { opacity: 1; transform: translateX(0); }
.mega__card-count { margin-top: var(--sp-1); color: var(--ink-400); font-size: var(--fs-xs); letter-spacing: 0.08em; }

/* Kategori içindeki ürünlerin hızlı listesi */
.mega__links { margin: var(--sp-3) 0 0; padding: 0; list-style: none; }
.mega__links li { margin: 0; }
.mega__links a {
  display: block;
  padding: 0.28rem 0;
  color: var(--ink-400);
  font-size: var(--fs-xs);
  transition: color var(--dur-fast) var(--ease), padding-left var(--dur-fast) var(--ease);
}
.mega__links a:hover { color: var(--rose-deep); padding-left: 6px; }

/* -----------------------------------------------------------------------------
   6. Başlık aksiyonları
   -------------------------------------------------------------------------- */
.header-actions { display: flex; align-items: center; gap: var(--sp-3); flex-shrink: 0; }

/* Teklif Alın: açılışta gizli; yalnızca masaüstünde ve başlık küçülünce çıkar */
.header-actions .header-cta { display: none; }
@media (min-width: 1200px) {
  .site-header.is-stuck .header-actions .header-cta { display: inline-flex; }
}

/* Telefon / e-posta — yalnızca ikon, dokunma hedefi 40px */
.header-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  color: var(--ink-600);
  font-size: 1.05rem;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.header-icon:hover { background: var(--surface-2, rgba(0, 0, 0, 0.04)); color: var(--rose-deep); }
.site-header--overlay:not(.is-stuck) .header-icon { color: rgba(255, 255, 255, 0.78); }
.site-header--overlay:not(.is-stuck) .header-icon:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
}

/* Dil seçici — TR / EN */
.header-lang {
  align-items: center;
  gap: var(--sp-2);
  padding-left: var(--sp-3);
  margin-left: var(--sp-1);
  border-left: 1px solid var(--line);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
}
.header-lang__opt { color: var(--ink-400); transition: color var(--dur) var(--ease); }
.header-lang__opt:hover { color: var(--ink); }
.header-lang__opt.is-active { color: var(--ink); font-weight: 600; }
.header-lang__sep { color: var(--ink-300, var(--ink-400)); opacity: 0.5; }

.site-header--overlay:not(.is-stuck) .header-lang { border-left-color: rgba(255, 255, 255, 0.28); }
.site-header--overlay:not(.is-stuck) .header-lang__opt { color: rgba(255, 255, 255, 0.62); }
.site-header--overlay:not(.is-stuck) .header-lang__opt:hover,
.site-header--overlay:not(.is-stuck) .header-lang__opt.is-active { color: var(--white); }

/* -----------------------------------------------------------------------------
   7. Mobil menü açma butonu (hamburger)
   -------------------------------------------------------------------------- */
.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
}
.burger span {
  display: block;
  width: 24px; height: 1.5px;
  margin-left: auto; margin-right: auto;
  background: var(--ink);
  border-radius: 2px;
  transition: transform var(--dur) var(--ease-out), opacity var(--dur-fast) var(--ease),
              width var(--dur) var(--ease-out), background var(--dur) var(--ease);
}
.burger span:nth-child(2) { width: 16px; margin-right: 10px; }
.site-header--overlay:not(.is-stuck) .burger span { background: var(--white); }

/* Açık durumda çarpıya dönüşür */
.burger.is-open span { background: var(--ink); width: 24px; margin-right: auto; }
.burger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* -----------------------------------------------------------------------------
   8. Mobil çekmece menü
   -------------------------------------------------------------------------- */
.drawer {
  position: fixed;
  top: 0; right: 0;
  z-index: var(--z-overlay);
  display: flex;
  flex-direction: column;
  width: min(430px, 100%);
  height: 100dvh;
  padding: var(--sp-5) clamp(1.5rem, 6vw, 2.75rem) var(--sp-8);
  background: var(--ivory);
  box-shadow: -20px 0 60px -20px rgba(20, 16, 14, 0.3);
  overflow-y: auto;
  overscroll-behavior: contain;
  transform: translateX(100%);
  visibility: hidden;
  transition: transform var(--dur-slow) var(--ease-out), visibility var(--dur-slow);
}
.drawer.is-open { transform: translateX(0); visibility: visible; }

/* Çekmece üst başlığı — logo + kapat butonu */
.drawer__head {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  min-height: 44px;
  margin-bottom: var(--sp-5);
  padding-right: 52px;              /* absolute kapat butonuna yer aç */
  padding-bottom: var(--sp-5);
  border-bottom: 1px solid var(--line-soft);
}
.drawer__brand { display: inline-flex; align-items: center; flex-shrink: 0; }
/* Koyu logo doğrudan kullanılır; ivory zeminde net görünür */
.drawer__brand img { width: auto; height: 30px; }
/* Kapat butonu flex akışından bağımsız; her genişlikte sağ üstte kalır */
.drawer__close {
  position: absolute;
  top: 0;
  right: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: none;
  color: var(--ink);
  font-size: 1.05rem;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}
.drawer__close:hover,
.drawer__close:focus-visible { background: var(--ink); border-color: var(--ink); color: var(--white); }

/* Çekmece arkasındaki karartma */
.drawer-veil {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-overlay) - 1);
  background: rgba(20, 16, 14, 0.5);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur) var(--ease), visibility var(--dur);
}
.drawer-veil.is-open { opacity: 1; visibility: visible; }

.drawer__nav { margin: 0; padding: 0; list-style: none; }
.drawer__nav > li { margin: 0; border-bottom: 1px solid var(--line-soft); }

.drawer__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  width: 100%;
  padding: var(--sp-5) 0;
  border: 0;
  background: none;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 300;
  text-align: left;
  cursor: pointer;
}
.drawer__link i { font-size: 0.8rem; color: var(--ink-400); transition: transform var(--dur) var(--ease-out); }
.drawer__link[aria-expanded="true"] { color: var(--rose-deep); }
.drawer__link[aria-expanded="true"] i { transform: rotate(180deg); }

/* Alt menü — açılır kapanır */
.drawer__sub {
  height: 0;
  overflow: hidden;
  transition: height var(--dur) var(--ease-out);
}
.drawer__sub-inner { margin: 0; padding: 0 0 var(--sp-5); list-style: none; }
.drawer__sub li { margin: 0; }
.drawer__sub a {
  display: block;
  padding: 0.65rem 0 0.65rem var(--sp-5);
  border-left: 1px solid var(--line);
  color: var(--ink-400);
  font-size: var(--fs-sm);
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.drawer__sub a:hover { color: var(--rose-deep); border-left-color: var(--rose); }

/* Çekmece alt bilgi bloğu */
.drawer__foot { margin-top: auto; padding-top: var(--sp-8); }
.drawer__foot .btn-ak { width: 100%; }
.drawer__contact { margin-top: var(--sp-6); font-size: var(--fs-sm); color: var(--ink-400); }
.drawer__contact a {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-3);
  color: var(--ink-600);
}
.drawer__contact a i { color: var(--rose-deep); font-size: 1rem; }

/* Dil seçici — çekmece */
.drawer__lang { display: flex; gap: var(--sp-4); margin-top: var(--sp-5); font-size: var(--fs-sm); }
.drawer__lang-opt { color: var(--ink-400); letter-spacing: 0.04em; }
.drawer__lang-opt.is-active { color: var(--ink); font-weight: 600; }
.drawer__social { display: flex; gap: var(--sp-3); margin-top: var(--sp-5); }
.drawer__social a {
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink-600);
  transition: all var(--dur) var(--ease);
}
.drawer__social a:hover { background: var(--ink); border-color: var(--ink); color: var(--white); }