:root {
  --dark-navy: #0a2540;
  --blue: #0056b3;
  --light-gray: #f8f9fa;
  --text-on-dark: #ffffff;
  --yellow: #ffc107;
  --stroke: rgba(255, 255, 255, 0.1);
}

/* RESET */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  padding-top: 70px;
  background: var(--light-gray);
}

/* ============================= */
/* HEADER GENEL */
/* ============================= */
.header {
  position: fixed; 
  top: 0;
  left: 0;
  right: 0;
  background: var(--dark-navy);
  z-index: 1000; 
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--stroke);
}

.nav { 
  display: flex; 
  justify-content: space-between; 
  align-items: center; 
  max-width: 1200px; 
  margin: 0 auto; 
  padding: 0 1.25rem; 
}

/* ============================= */
/* LOGO */
/* ============================= */
.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo-img {
  height: 70px;
  width: auto;
  display: block;
  transition: height 0.3s ease;
}

/* ============================= */
/* NAV MENU */
/* ============================= */
.nav-menu { 
  display: flex; 
  list-style: none; 
  gap: 0.5rem;
  
}

.nav-menu a {
  color: var(--text-on-dark);
  text-decoration: none; 
  font-weight: 600; 
  font-size: 0.98rem;
  padding: 0.5rem 0.75rem; 
  border-radius: 8px;
  display: block;
  transition: all 0.3s ease;
}

.nav-menu a:hover { 
  color: var(--dark-navy); 
  background: var(--yellow); 
}

@media screen and (max-width: 768px) {
  /* Ana menü ve tüm içindeki öğeler için arka plan */
  .nav-menu,
  .nav-menu .dropdown,
  .nav-menu .dropdown-content {
    background-color: var(--dark-navy) !important;
  }
  
  /* Menü kapalıyken konumunun doğru ayarlandığından emin olun */
  .nav-menu:not(.active) {
    right: -100%;
  }
}

/* ============================= */
/* DROPDOWN MENÜ */
/* ============================= */
.dropdown {
  position: relative;
}

.dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: white;
  min-width: 220px;
  box-shadow: 0px 8px 16px rgba(0, 0, 0, 0.2);
  z-index: 1000;
  border-radius: 8px;
  overflow: hidden;
  margin-top: 5px;
}

.dropdown-content a {
  color: var(--dark-navy) !important;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
  font-size: 0.95rem;
}

.dropdown-content a:hover {
  background-color: var(--yellow);
  color: var(--dark-navy) !important;
}

/* Sadece desktop hover */
@media screen and (min-width: 769px) {
  .dropdown:hover .dropdown-content {
    display: block;
  }
}

/* ============================= */
/* HAMBURGER MENU */
/* ============================= */
.hamburger {
  display: none;
  cursor: pointer;
  background: none;
  border: none;
  color: white;
  font-size: 2rem;
  z-index: 1100;
  transition: transform 0.3s ease;
    width: auto;
  height: auto;
  padding: 0;
  min-width: unset;
  line-height: 1;
}

.hamburger:hover {
  transform: scale(1.1);
}

/* ============================= */
/* MOBİL RESPONSIVE */
/* ============================= */
@media screen and (max-width: 768px) {
  body {
    padding-top: 60px;
  }

  /* Hamburger görünür */
  .hamburger {
    display: block;
  }

  /* Menü gizli başlangıçta */
  .nav-menu {
    position: fixed;
    top: 60px;
    right: -100%; /* sağdan gizli */
    flex-direction: column;
    background-color: var(--dark-navy);
    width: 250px;
    text-align: left;
    transition: right 0.3s ease-in-out;
    height: 100%;
    padding: 1rem 0;
    gap: 0;
  }

  /* Menü aktif olunca görünür */
  .nav-menu.active {
    right: 0;
  }

  .nav-menu li {
    width: 100%;
  }

  .nav-menu a {
    padding: 1rem;
    border-radius: 0;
    display: block;
    width: 100%;
  }

  /* Mobil dropdown */
  .dropdown-content {
    position: static;
    display: none;
    background-color: var(--dark-navy);
    box-shadow: none;
    width: 100%;
    margin-top: 0;
    border-radius: 0;
  }

  .dropdown-content a {
    color: var(--text-on-dark) !important;
    padding: 0.75rem 1rem;
  }

  .dropdown.active .dropdown-content {
    display: block;
  }

  /* Logo mobilde küçülür */
  .logo-img {
    height: 55px;
  }
}

/* ============================= */
/* KÜÇÜK MOBİL (480px ve altı) */
/* ============================= */
@media screen and (max-width: 480px) {
  .nav {
    padding: 0 0.75rem;
  }

  .nav-menu {
    width: 200px;
  }

  .logo-img {
    height: 45px;
  }

  .nav-menu a {
    font-size: 0.9rem;
  }

  .hamburger {
    font-size: 1.8rem;
  }
}