/*  NAVIGATION BAR STYLE */
/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #000000;
  color: #fff;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}

.navbar .main-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
}

.navbar .main-menu li {
  margin-right: 20px;
  position: relative;
}

.navbar .main-menu a {
  color: #fff;
  text-decoration: none;
  font-size: 16px;
  padding: 6px 4px;
  transition: color 0.3s ease, border-bottom 0.3s ease;
  border-bottom: 2px solid transparent;
}

/* Hover Effect */
.navbar .main-menu a:hover {
  color: #ffcc00;
  border-bottom: 2px solid #ffcc00;
}

/* Dropdown */
.dropdown-menu {
  display: none;
  position: absolute;
  top: 110%;
  left: 0;
  background: #222;
  padding: 10px;
  list-style: none;
  min-width: 150px;
  border-radius: 6px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

.dropdown:hover .dropdown-menu {
  display: block;
  animation: fadeIn 0.3s ease;
}

.dropdown-menu li {
  margin: 8px 0;
}

.dropdown-menu a {
  color: #ddd;
  font-size: 14px;
}

.dropdown-menu a:hover {
  color: #ffcc00;
}

/* Toggle Button */
.toggle-btn {
  display: none;
  background: #c00;
  color: #fff;
  border: none;
  padding: 4px 6px;
  font-size: 12px;
  cursor: pointer;
  border-radius: 1px;
  transition: background 0.3s ease;
}

.toggle-btn:hover {
  background: #a00;
}

/* Mobile Menu (Left Slide) */
.mobile-menu {
  position: fixed;
  top: 0;
  left: -100%;   /* আগে ছিল right, এখন left */
  width: 75%;
  max-width: 300px;
  height: 100%;
  background: linear-gradient(180deg, #fff, #eee);
  box-shadow: 2px 0 10px rgba(0,0,0,0.4); /* ছায়া বাঁ দিকে */
  transition: left 0.4s ease; /* left এর transition */
  padding: 20px;
  z-index: 2000;
}

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

.mobile-menu li {
  margin: 12px 0;
}

.mobile-menu a {
  text-decoration: none;
  color: #222;
  font-size: 16px;
  font-weight: 500;
  transition: color 0.3s ease;
}

.mobile-menu a:hover {
  color: #c00;
}

.close-btn {
  background: red;
  color: #fff;
  border: none;
  font-size: 20px;
  padding: 6px 12px;
  cursor: pointer;
  float: right;
  border-radius: 6px;
}

/* Responsive */
@media (max-width: 768px) {
  .navbar .main-menu {
    display: flex;
  }

  /* মোবাইলে শুধু প্রথম ৩টা মেনু */
  .navbar .main-menu li:nth-child(n+4) {
    display: none;
  }

  .toggle-btn {
    display: block;
  }

  .dropdown {
    display: none;
  }
}

/* ছোট স্ক্রিন (320px) */
@media (max-width: 400px) {
  .navbar {
    padding: 8px 3px;
  }

  .navbar .main-menu a {
    font-size: 14px;
  }

  .mobile-menu a {
    font-size: 14px;
  }
}

/* Animation */
@keyframes fadeIn {
  from {opacity: 0; transform: translateY(-10px);}
  to {opacity: 1; transform: translateY(0);}
}


/* Overlay */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.6);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease;
  z-index: 1500;
}