<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Admin Dashboard - Plexio IT</title>
    <!-- Bootstrap 5 CSS -->
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
    <!-- FontAwesome Icons -->
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
    
    <style>
        :root {
            --primary-blue: #0147C9;
            --text-dark: #333;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: #f0f4f8; /* হালকা ব্যাকগ্রাউন্ড যাতে হোয়াইট গ্লাস ফুটে ওঠে */
            /* পেছনের ব্যাকগ্রাউন্ডে হালকা ব্লু শ্যাডো যাতে গ্লাস ইফেক্ট সুন্দর লাগে */
            background-image: radial-gradient(circle at top left, rgba(1, 71, 201, 0.08), transparent 500px),
                              radial-gradient(circle at bottom right, rgba(1, 71, 201, 0.05), transparent 400px);
            margin: 0;
            overflow-x: hidden;
        }
        
        /* 1. White Glassmorphism Header */
        .glass-header {
            background: rgba(255, 255, 255, 0.75) !important; /* সেমি-ট্রান্সপারেন্ট হোয়াইট */
            backdrop-filter: blur(16px); /* গ্লাস ব্লার ইফেক্ট */
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.4);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.03); /* একদম সফট শ্যাডো */
            position: sticky;
            top: 0;
            z-index: 1050;
        }
        
        .glass-header .navbar-brand {
            color: var(--primary-blue);
            font-weight: 800;
            letter-spacing: 0.5px;
        }

        /* 2. Three-Line Menu Button (Hamburger) */
        #sidebarToggle {
            background: transparent;
            border: none;
            color: var(--primary-blue);
            font-size: 22px;
            padding: 5px 10px;
            cursor: pointer;
            transition: 0.3s;
        }
        #sidebarToggle:focus {
            outline: none;
        }
        #sidebarToggle:hover {
            color: #013699;
        }

        /* Main Wrapper */
        .wrapper {
            display: flex;
            width: 100%;
            align-items: stretch;
            min-height: calc(100vh - 65px);
            position: relative;
        }
        
        /* Content Area */
        #content {
            width: 100%;
            padding: 25px;
            transition: all 0.3s;
        }

        /* Mobile Sidebar Settings (পরবর্তীতে সাইডবার ফাইলে কাজে লাগবে) */
        @media (max-width: 768px) {
            #sidebar {
                position: fixed;
                top: 65px;
                left: -260px;
                height: calc(100vh - 65px);
                z-index: 1040;
                transition: left 0.3s ease-in-out;
            }
            #sidebar.show {
                left: 0;
            }
        }
    </style>
</head>
<body>

<!-- Top Header Navbar (White Glass Effect) -->
<nav class="navbar navbar-expand-lg glass-header px-3 py-2">
    <div class="container-fluid">
        <div class="d-flex align-items-center">
            <!-- Mobile 3-Line Toggle Button (_ _ _) -->
            <button class="d-md-none me-3" id="sidebarToggle">
                <i class="fas fa-bars"></i>
            </button>
            
            <!-- Brand Logo/Name -->
            <a class="navbar-brand m-0" href="dashboard.php">
                <i class="fas fa-server me-2"></i> Plexio IT
            </a>
        </div>
        
        <div class="d-flex align-items-center">
            <!-- Profile Dropdown -->
            <div class="dropdown">
                <a href="#" class="d-flex align-items-center text-decoration-none dropdown-toggle" id="dropdownUser" data-bs-toggle="dropdown" aria-expanded="false">
                    <img src="https://ui-avatars.com/api/?name=Admin&background=0147C9&color=fff" alt="Admin" width="35" height="35" class="rounded-circle shadow-sm">
                    <span class="ms-2 d-none d-sm-inline fw-semibold" style="color: #444;">Super Admin</span>
                </a>
                <ul class="dropdown-menu dropdown-menu-end shadow-sm border-0 mt-2" aria-labelledby="dropdownUser" style="border-radius: 12px; min-width: 200px;">
                    <li><a class="dropdown-item py-2" href="#"><i class="fas fa-user-cog me-2 text-secondary"></i> My Profile</a></li>
                    <li><a class="dropdown-item py-2" href="#"><i class="fas fa-cog me-2 text-secondary"></i> Settings</a></li>
                    <li><hr class="dropdown-divider"></li>
                    <!-- লগআউটের লিংক অ্যাড করা হলো -->
                    <li><a class="dropdown-item py-2 text-danger fw-semibold" href="logout.php"><i class="fas fa-sign-out-alt me-2"></i> Sign out</a></li>
                </ul>
            </div>
        </div>
    </div>
</nav>

<div class="wrapper">