/* Header ve Menü */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 25px;
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.logo img {
  height: 55px;
  width: auto;
}

/* Menü bağlantıları (masaüstü) */
#navbar {
  display: flex;
  gap: 25px;
  transition: all 0.3s ease;
}

#navbar a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
}

/* Menü ikonu (mobilde görünür) */
.menu-toggle {
  display: none;
  font-size: 28px;
  cursor: pointer;
}

/* --- Mobil Ekranlar --- */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  #navbar {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 70px;
    right: 0;
    width: 100%;
    background: #fff;
    box-shadow: 0 6px 15px rgba(0,0,0,0.15);
  }

  #navbar.active {
    display: flex;
  }

  #navbar a {
    padding: 15px 0;
    text-align: center;
    border-bottom: 1px solid #eee;
  }
}

/* --- Görsellerin otomatik ekran uyumu --- */
img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: auto;
}

/* --- Ana içerik hizalama --- */
main {
  max-width: 1000px;
  margin: 20px auto;
  padding: 10px;
  text-align: center;
}

main h1, main p {
  margin-bottom: 15px;
}