<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>CRM System</title>

    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">

    <style>
        body {
            background: #f4f6f9;
        }
        .navbar {
            background: #0d6efd;
        }
        .navbar-brand {
            color: white !important;
            font-weight: bold;
        }
        .card {
            border-radius: 12px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.08);
        }
    </style>
</head>
<body>

<nav class="navbar px-3">
    <a class="navbar-brand" href="/">🎓 CRM</a>
</nav>

<div class="container mt-4">
    @yield('content')
</div>

</body>
</html>