/* ===== MOBILE NAV - TÜM SAYFALARDA KULLANILIR ===== */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  z-index: 1001;
}
.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--teal);
  border-radius: 2px;
  transition: all 0.3s;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile-menu {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  background: rgba(7,16,32,0.98);
  backdrop-filter: blur(16px);
  z-index: 1000;
  padding: 5rem 2rem 2rem;
  border-bottom: 1px solid rgba(0,196,167,0.15);
  flex-direction: column;
  gap: 0;
}
.nav-mobile-menu.open { display: flex; }
.nav-mobile-menu a {
  color: var(--gray);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: color 0.2s;
}
.nav-mobile-menu a:hover { color: var(--teal); }
.nav-mobile-menu a:last-child {
  margin-top: 1rem;
  border-bottom: none;
  background: var(--teal);
  color: var(--deep) !important;
  text-align: center;
  border-radius: 4px;
  padding: 0.75rem 1rem;
  font-weight: 700;
}

@media (max-width: 900px) {
  nav { padding: 1rem 1.5rem !important; }
  .nav-links { display: none !important; }
  .nav-hamburger { display: flex; }
}
@media (max-width: 480px) {
  nav { padding: 0.9rem 1rem !important; }
}