/* CSS Reset (basit) */
*,
*::before,
*::after { margin:0; padding:0; box-sizing:border-box; }

:root {
  --clr-primary:#01579b;
  --clr-secondary:#42a5f5;
  --clr-dark:#222;
  --clr-light:#fafafa;
  --container: min(90%,1200px);
  --radius: .75rem;
  --shadow: 0 10px 30px rgba(0,0,0,.31);
  --transition: .3s ease;
  font-size: 16px;
}

body { 
  font-family: system-ui, sans-serif; 
  line-height:1.6; 
  color:var(--clr-dark);
}
a { text-decoration:none; color:inherit; }
.container {
  width: var(--container); /* e.g. min(90%, 1200px) */
  margin-left: auto;
  margin-right: auto;
}

/* Header */
.site-header { 
  background: var(--clr-light); 
  box-shadow: var(--shadow); 
  position: sticky; 
  top: 0; 
  z-index: 9997; 
  padding: 1rem 0;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--clr-primary);
  text-decoration: none;
  flex-shrink: 0;
}

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

.primary-nav ul {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.primary-nav a {
  color: var(--clr-dark);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}

.primary-nav a:hover {
  color: var(--clr-primary);
}

.primary-nav a.active {
  color: var(--clr-primary);
  font-weight: 600;
}

.primary-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--clr-secondary);
  border-radius: 1px;
}

.primary-nav .btn {
  background: var(--clr-secondary);
  color: #fff;
  border-radius: 25px;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  margin-left: 1rem;
  transition: all var(--transition);
}

.primary-nav .btn:hover {
  background: #1e88e5;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(66,165,245,0.3);
}

/* Hamburger Menu */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 30px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 10001;
  position: relative;
  /* Viewport'a göre pozisyonlama için */
  contain: layout style paint;
}

.hamburger span {
  width: 30px;
  height: 3px;
  background: var(--clr-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: 1px;
}

.hamburger.active span:first-child {
  transform: rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:last-child {
  transform: rotate(-45deg);
}

/* Mobile Navigation */
.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: min(320px, 80vw);
  height: 100vh;
  background: #fff;
  box-shadow: 5px 0 15px rgba(0,0,0,0.15);
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  z-index: 99999;
  padding: 5rem 0 2rem;
  overflow-y: auto;
  /* Viewport'a göre pozisyonlama için */
  will-change: transform;
  backface-visibility: hidden;
  contain: layout style paint;
}

.mobile-nav.active {
  transform: translateX(0);
  visibility: visible;
  opacity: 1;
}

.mobile-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mobile-nav li {
  border-bottom: 1px solid #f0f0f0;
}

.mobile-nav a {
  display: block;
  padding: 1.2rem 2rem;
  color: var(--clr-dark);
  text-decoration: none;
  font-weight: 500;
  transition: all var(--transition);
}

.mobile-nav a:hover,
.mobile-nav a.active {
  background: rgba(1,87,155,0.05);
  color: var(--clr-primary);
}

.mobile-nav .btn {
  margin: 1rem 2rem;
  display: block;
  text-align: center;
  background: var(--clr-secondary);
  color: #fff;
  border-radius: 25px;
  padding: 1rem;
}

/* Mobile Close Button */
.mobile-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 10000;
}

.mobile-close span {
  width: 20px;
  height: 2px;
  background: var(--clr-dark);
  border-radius: 1px;
  transition: all 0.3s ease;
  position: absolute;
}

.mobile-close span:first-child {
  transform: rotate(45deg);
}

.mobile-close span:last-child {
  visibility: visible;
  transform: rotate(-45deg);
}

.mobile-close:hover span {
  background: var(--clr-primary);
}

.mobile-nav-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.6);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 99998;
  /* Viewport'a göre pozisyonlama için */
  contain: layout style paint;
}

.mobile-nav-backdrop.active {
  opacity: 1;
  visibility: visible;
}

body.mobile-nav-open {
  overflow: hidden;
}

/* Responsive Design */
@media (max-width: 768px) {
  .primary-nav {
    display: none;
  }
  
  .hamburger {
    display: flex;
  }
  
  .nav-wrapper {
    padding: 0.5rem 0;
  }
  
  .logo {
    font-size: 1.3rem;
  }
}

.btn {
  background: var(--clr-secondary);
  color: #fff;
  padding: .4rem .9rem;
  border-radius: var(--radius);

  /* Eklenen geçiş animasyonları */
  transition: 
    background-color var(--transition),
    transform var(--transition),
    filter var(--transition);
}

/* Hover efekti */
.btn:hover {
  /* Rengi %10 parlat */
  filter: brightness(1.1);

  /* Hafif yukarı kaldır */
  transform: translateY(-2px);
}

/* Eğer outline butonlar için farklı bir hover istersen: */
.btn-outline {
  /* …mevcut tanımlar… */
  transition: 
    background-color var(--transition),
    color var(--transition),
    transform var(--transition);
}

.btn-outline:hover {
  background-color: var(--clr-secondary);
  color: #fff;
  transform: translateY(-2px);
}

/* Footer */
.site-footer { background:#f1f3f4; margin-top:4rem; padding:2rem 0; color:#555; }
.footer-cols { display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:1.5rem; }

/* ─── Uzatılmış Turuncu Bölüm Ayırıcısı ─── */
.section-divider {
  /* Eski 60px yerine daha uzun, ama responsive */
  width: clamp(120px, 20%, 300px);
  height: 4px;
  background: var(--clr-secondary);
  margin: 3.5rem auto;       /* biraz daha boşluk da ekledim */
  border-radius: 2px;
  box-shadow: 0 3px 8px rgba(0,0,0,0.1);
}

/* ─── SMOOTH TRANSITIONS & ANIMATIONS ─── */

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

/* Page Load Animation */
/* Replace your pageLoad animation with a pure opacity fade */
body {
  opacity: 0;
  animation: fadeIn .2s ease-out both; /* 'both' is fine; no transform used */
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* Enhanced Button Animations */
.btn {
  transition: all 0.1s ease;
}

/* Smooth Link Transitions */
a {
  transition: all 0.2s ease;
}

/* Page Transition Overlay */
.page-transition-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255,255,255,0.9);
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-transition-overlay.active {
  opacity: 1;
  visibility: visible;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(66,165,245,0.3);
  border-top: 3px solid var(--clr-secondary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ─── WhatsApp CTA Buton Stilleri ─── */
.cta-whatsapp {
  background: #25d366 !important;
  color: white !important;
  border: 2px solid #25d366 !important;
  border-radius: 25px !important;
  padding: 0.875rem 1.75rem !important;
  font-weight: 600 !important;
  font-size: 0.95rem !important;
  text-decoration: none !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  transition: all 0.3s ease !important;
  box-shadow: 0 2px 8px rgba(37, 211, 102, 0.3) !important;
  white-space: nowrap !important;
}

.cta-whatsapp:hover {
  background: #128c7e !important;
  border-color: #128c7e !important;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
}