body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f6f9;
    margin: 0;
    padding: 0;
}

.navbar {
    background-color: #343a40;
    color: white;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar a {
    color: white;
    text-decoration: none;
    margin-left: 15px;
}

.navbar .brand {
    font-size: 1.25rem;
    font-weight: bold;
}

.container {
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    padding: 2rem;
    margin-bottom: 2rem;
}

.login-container {
    max-width: 400px;
    margin: 5rem auto;
    text-align: center;
}

.login-container img {
    max-width: 150px;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1rem;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
}

.btn:hover {
    background-color: #0056b3;
}

.btn-block {
    display: block;
    width: 100%;
}

.alert {
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 4px;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Sidebar layout */
.wrapper {
    display: flex;
    height: 100vh;
}

.sidebar {
    width: 250px;
    background-color: #343a40;
    color: white;
    padding-top: 20px;
    flex-shrink: 0;
}

.sidebar a {
    padding: 15px 25px;
    text-decoration: none;
    font-size: 1.1rem;
    color: #818181;
    display: block;
}

.sidebar a:hover {
    color: #f1f1f1;
    background-color: #495057;
}

.content {
    flex-grow: 1;
    padding: 20px;
    overflow-y: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.table th, .table td {
    padding: 0.75rem;
    border-bottom: 1px solid #dee2e6;
    text-align: left;
}

.table th {
    background-color: #e9ecef;
}

.status-badge {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    color: white;
    font-size: 0.875rem;
}