/* ==========================================================================
   Usta Teknik Servis — Header ve Topbar (bagimsiz bilesen dosyasi)
   Yalniz .site-topbar / .site-header / .primary-navigation / .header-contact /
   .header-cta / .mobile-menu-toggle / .mobile-offcanvas siniflarini icerir.
   ========================================================================== */

/* ---------------------------------------------------------------------
   Topbar
   --------------------------------------------------------------------- */
.site-topbar {
  background: linear-gradient(90deg, var(--primary) 0%, #0a2645 100%);
  color: rgba(255, 255, 255, .92);
  min-height: var(--topbar-h);
  font-size: 13px;
}
.site-topbar__inner {
  max-width: var(--container-w-header);
  margin: 0 auto;
  padding: 0 24px;
  min-height: var(--topbar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
}
.site-topbar__left,
.site-topbar__right {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.site-topbar__item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-weight: 600;
  letter-spacing: .01em;
  white-space: nowrap;
}
.site-topbar__item i { font-size: 12.5px; }
.site-topbar__item.is-location i,
.site-topbar__item.is-phone i { color: var(--accent); }
.site-topbar__item.is-hours i { color: #7fb6ff; }
.site-topbar__item.is-whatsapp i { color: var(--whatsapp); }
a.site-topbar__item {
  color: #fff;
  transition: opacity var(--transition-fast);
}
a.site-topbar__item:hover { opacity: .82; }
.site-topbar__divider {
  width: 1px;
  height: 13px;
  background: rgba(255, 255, 255, .22);
  flex-shrink: 0;
}

/* ---------------------------------------------------------------------
   Header — kabuk
   --------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 8px 30px rgba(7, 29, 53, .07);
  transition: box-shadow var(--transition-base), background var(--transition-base);
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, .99);
  box-shadow: 0 12px 32px rgba(7, 29, 53, .1);
}
.site-header__inner {
  max-width: var(--container-w-header);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  transition: height var(--transition-base);
}
.site-header.is-scrolled .site-header__inner { height: var(--header-h-scrolled); }

/* ---------------------------------------------------------------------
   Marka / Logo
   --------------------------------------------------------------------- */
.site-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 200px;
  white-space: nowrap;
  flex-shrink: 0;
}
.site-brand__img {
  height: 42px;
  width: auto;
  max-width: 190px;
  object-fit: contain;
  flex-shrink: 0;
  transition: height var(--transition-base);
}
.site-header.is-scrolled .site-brand__img { height: 36px; }
.site-brand__icon {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: width var(--transition-base), height var(--transition-base);
}
.site-header.is-scrolled .site-brand__icon { width: 36px; height: 36px; }
.site-brand__icon svg { width: 100%; height: 100%; display: block; }
.site-brand__name {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
  white-space: nowrap;
  line-height: 1;
}
.site-brand__name-primary { color: var(--primary); }
.site-brand__name-accent { color: var(--blue); }

/* ---------------------------------------------------------------------
   Ana navigasyon
   --------------------------------------------------------------------- */
.primary-navigation {
  flex: 1;
  display: flex;
  justify-content: center;
  min-width: 0;
}
.primary-navigation__list {
  display: flex;
  align-items: center;
  gap: 27px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.primary-navigation__item { display: flex; }
.primary-navigation__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 10px 5px;
  font-size: 14.5px;
  font-weight: 600;
  color: #24364B;
  white-space: nowrap;
  border-radius: 8px;
  transition: color .22s ease, background-color .22s ease;
}
.primary-navigation__link:hover,
.primary-navigation__link:focus-visible {
  color: var(--blue);
  background-color: var(--blue-soft);
}
.primary-navigation__link.is-active { color: var(--blue); }
.primary-navigation__link.is-active::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -1px;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  border-radius: 3px;
  background: var(--blue);
}

/* ---------------------------------------------------------------------
   Sağ aksiyon alanı: hızlı destek + CTA
   --------------------------------------------------------------------- */
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.header-contact {
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
  color: var(--text);
}
.header-contact__icon {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: var(--blue-soft);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}
.header-contact__text { display: flex; flex-direction: column; line-height: 1.25; }
.header-contact__label { font-size: 11.5px; font-weight: 600; color: var(--muted); }
.header-contact__value { font-size: 15px; font-weight: 800; color: var(--primary); }
a.header-contact__value:hover { color: var(--blue); }

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 22px;
  border-radius: 13px;
  background: linear-gradient(135deg, #FF7A32, #FF5D26);
  color: #fff;
  font-weight: 700;
  font-size: 14.5px;
  white-space: nowrap;
  box-shadow: 0 10px 22px rgba(255, 93, 38, .28);
  transition: transform .2s ease, box-shadow .2s ease;
}
.header-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 26px rgba(255, 93, 38, .34);
  color: #fff;
}
.header-cta:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

.header-phone-icon-btn {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--blue-soft);
  color: var(--blue);
  align-items: center;
  justify-content: center;
  font-size: 17px;
  flex-shrink: 0;
}

/* ---------------------------------------------------------------------
   Hamburger butonu
   --------------------------------------------------------------------- */
.mobile-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 12px;
  background: var(--blue-soft);
  color: var(--blue);
  font-size: 17px;
  cursor: pointer;
  flex-shrink: 0;
}
.mobile-menu-toggle:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.mobile-menu-toggle[aria-expanded="true"] .fa-bars:before { content: "\f00d"; }

/* ---------------------------------------------------------------------
   Mobil offcanvas menü
   --------------------------------------------------------------------- */
.mobile-offcanvas__overlay {
  position: fixed;
  inset: 0;
  background: rgba(7, 29, 53, .58);
  backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base);
  z-index: 300;
}
.mobile-offcanvas__overlay.open { opacity: 1; visibility: visible; }

.mobile-offcanvas {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 88vw;
  max-width: 390px;
  background: var(--surface);
  z-index: 301;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-base);
  box-shadow: -20px 0 60px rgba(7, 29, 53, .18);
}
.mobile-offcanvas.open { transform: translateX(0); }

.mobile-offcanvas__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-md) var(--space-sm);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.mobile-offcanvas__close {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: none;
  background: var(--background);
  color: var(--primary);
  font-size: 16px;
  cursor: pointer;
}
.mobile-offcanvas__close:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

.mobile-offcanvas__nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-sm) var(--space-sm);
}
.mobile-offcanvas__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 52px;
  padding: 0 14px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 15.5px;
  color: var(--primary);
}
.mobile-offcanvas__link:hover { background: var(--background); }
.mobile-offcanvas__link.is-active { background: var(--blue-soft); color: var(--blue); }
.mobile-offcanvas__link i { color: var(--muted); font-size: 12px; flex-shrink: 0; }
.mobile-offcanvas__link.is-active i { color: var(--blue); }

.mobile-offcanvas__footer {
  flex-shrink: 0;
  padding: var(--space-md);
  border-top: 1px solid var(--border);
  background: var(--background);
}
.mobile-offcanvas__meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: var(--space-md);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
}
.mobile-offcanvas__meta a { color: var(--text); display: flex; align-items: center; gap: 8px; }
.mobile-offcanvas__meta i {
  width: 30px; height: 30px; border-radius: 9px; background: var(--surface);
  display: inline-flex; align-items: center; justify-content: center; color: var(--blue); flex-shrink: 0;
}
.mobile-offcanvas__meta .fa-whatsapp { color: var(--whatsapp); }
.mobile-offcanvas__actions { display: flex; flex-direction: column; gap: 10px; }
.mobile-offcanvas__actions .btn { width: 100%; justify-content: center; min-height: 52px; font-size: 15.5px; }

/* ---------------------------------------------------------------------
   Responsive
   --------------------------------------------------------------------- */
@media (max-width: 1200px) {
  .site-header__inner { padding: 0 20px; }
  .header-contact__text { display: none; }
  .header-contact { gap: 0; }
  .header-contact__icon { width: 44px; height: 44px; border-radius: 12px; font-size: 17px; }
  .primary-navigation__list { gap: 18px; }
}

@media (max-width: 1100px) {
  .primary-navigation { display: none; }
  .header-contact { display: none; }
  .mobile-menu-toggle { display: flex; }
}

@media (max-width: 768px) {
  :root { --header-h: var(--header-h-mobile); --header-h-scrolled: 64px; }
  .site-topbar { display: none; }
  .site-header__inner { padding: 0 18px; }
  .site-brand { min-width: 0; gap: 9px; }
  .site-brand__name { font-size: 17px; }
  .site-brand__icon, .site-header.is-scrolled .site-brand__icon { width: 34px; height: 34px; }
  .site-brand__img, .site-header.is-scrolled .site-brand__img { height: 30px; }
  .header-cta { display: none; }
  .header-phone-icon-btn { display: flex; }
  .header-actions { gap: 10px; }
}

@media (max-width: 380px) {
  .site-brand__name { font-size: 15.5px; }
}