/* ==========================================================================
   BAŞ GRUP İNŞAAT — LAYOUT STYLES
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

.section {
  padding: var(--space-2xl) 0;
  position: relative;
}

.section-alt {
  background-color: var(--bg-alt);
}

.section-dark {
  background-color: var(--dark);
  color: var(--text-white);
}

/* NAVBAR LAYOUT */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: var(--transition-normal);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(13, 27, 42, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  border-bottom: 1px solid rgba(212, 168, 67, 0.15);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-brand {
  display: flex;
  align-items: center;
}

.nav-logo {
  height: 72px;
  width: auto;
  max-width: 240px;
  object-fit: contain;
  filter: drop-shadow(0 4px 12px rgba(212, 168, 67, 0.35));
  transition: var(--transition-fast);
}

.nav-menu, .nav-links {
  display: flex;
  align-items: center;
  gap: 2.75rem;
}

.nav-link {
  font-family: var(--font-body);
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: rgba(255, 255, 255, 0.95);
  position: relative;
  padding: 0.5rem 0;
}

.navbar:not(.scrolled) .nav-link {
  color: #FFFFFF;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.6);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: var(--transition-fast);
  box-shadow: var(--shadow-glow);
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-light);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-cta {
  padding: 0.75rem 1.75rem;
  font-weight: 600;
  font-size: 0.9rem;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  color: #FFFFFF;
  font-size: 1.75rem;
  cursor: pointer;
  z-index: 1001;
}

/* FOOTER LAYOUT */
.footer {
  background: var(--dark-surface);
  color: var(--text-light);
  padding: var(--space-2xl) 0 var(--space-md);
  border-top: 1px solid rgba(212, 168, 67, 0.2);
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-bottom {
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
}

.footer-developer a:hover {
  color: var(--accent-light) !important;
  text-decoration: underline !important;
}