/* ==========================================================================
   LAYOUT.CSS — Container, header, grid, section rhythm, footer
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.section {
  padding-block: var(--space-7);
}

.section--tight { padding-block: var(--space-6); }

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-5);
}

.section-head--center { margin-inline: auto; text-align: center; }

/* ==========================================================================
   HEADER
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: transparent;
  transition: background var(--transition-base), box-shadow var(--transition-base), height var(--transition-base), border-color var(--transition-base);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  height: 72px;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.main-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ==========================================================================
   GRID SİSTEMLERİ
   ========================================================================== */

.grid {
  display: grid;
  gap: var(--space-3);
}

.grid--services {
  grid-template-columns: repeat(4, 1fr);
}

.grid--why {
  grid-template-columns: repeat(3, 1fr);
}

.grid--regions {
  grid-template-columns: repeat(4, 1fr);
}

.mahalle-grid {
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.grid--blog {
  grid-template-columns: repeat(3, 1fr);
}

.grid--contact {
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-5);
  align-items: start;
}

.grid--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  align-items: center;
}

@media (max-width: 1080px) {
  .grid--services { grid-template-columns: repeat(3, 1fr); }
  .grid--regions { grid-template-columns: repeat(2, 1fr); }
  .mahalle-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .grid--why { grid-template-columns: repeat(2, 1fr); }
  .grid--blog { grid-template-columns: 1fr; }
  .grid--contact { grid-template-columns: 1fr; }
  .grid--split { grid-template-columns: 1fr; gap: var(--space-4); }
}

@media (max-width: 640px) {
  .grid--services { grid-template-columns: repeat(2, 1fr); }
  .grid--why { grid-template-columns: 1fr; }
  .grid--regions { grid-template-columns: 1fr 1fr; }
  .mahalle-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   HERO
   ========================================================================== */

.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  overflow: hidden;
  background: linear-gradient(180deg, var(--color-support) 0%, #0d3563 100%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-6);
  align-items: center;
  width: 100%;
}

.hero-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 5;
  box-shadow: var(--shadow-lg);
}

.hero-media img {
  width: 100%; height: 100%;
  object-fit: cover;
}

@media (max-width: 980px) {
  .hero { min-height: unset; padding-bottom: var(--space-6); }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-media { order: -1; aspect-ratio: 16/10; max-width: 520px; margin-inline: auto; }
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.site-footer {
  background: var(--color-support);
  color: #C9D8E8;
  padding-top: var(--space-6);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-4);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-3);
  font-size: 0.85rem;
  color: #93A9C2;
  flex-wrap: wrap;
  gap: var(--space-2);
}

@media (max-width: 860px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   MOBİL SABİT AKSİYON ÇUBUĞU
   ========================================================================== */

.mobile-dock {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 600;
  display: none;
  gap: 1px;
  background: var(--color-border);
  box-shadow: 0 -8px 24px rgba(11,20,32,0.12);
}

@media (max-width: 860px) {
  .mobile-dock { display: grid; grid-template-columns: 1fr 1fr; }
  body { padding-bottom: 64px; }
}

/* Sayfa içi bölüm konteyneri (breadcrumb, iç sayfalar) */
.page-hero {
  padding-top: calc(var(--header-h) + var(--space-5));
  padding-bottom: var(--space-5);
  background: var(--surface-100);
  border-bottom: 1px solid var(--color-border);
}