<nav class="navbar navbar-expand-lg fixed-top bg-white shadow-sm">
    <div class="container">
        <a class="navbar-brand fw-bold" href="index.php" style="color: #6C5CE7;">
            <i class="fas fa-graduation-cap"></i> বাংলা LMS
        </a>
        <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav">
            <span class="navbar-toggler-icon"></span>
        </button>
        <div class="collapse navbar-collapse" id="navbarNav">
            <ul class="navbar-nav me-auto">
                <li class="nav-item"><a class="nav-link" href="index.php">হোম</a></li>
                <li class="nav-item"><a class="nav-link" href="courses.php">কোর্স</a></li>
                <li class="nav-item"><a class="nav-link" href="packages.php">প্যাকেজ</a></li>
            </ul>
            <div>
                <?php if(isset($_SESSION['user_id'])): ?>
                    <a href="dashboard.php" class="btn btn-primary me-2">ড্যাশবোর্ড</a>
                    <a href="logout.php" class="btn btn-outline-danger">লগআউট</a>
                <?php else: ?>
                    <a href="login.php" class="btn btn-outline-primary me-2">লগইন</a>
                    <a href="register.php" class="btn btn-primary">রেজিস্ট্রেশন</a>
                <?php endif; ?>
            </div>
        </div>
    </div>
</nav>
<div style="height: 80px;"></div>