body {
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    color: #1b1b1b;
    background: #f5f7fa;
}

.page-header {
    background: #0f3460;
    padding: 1rem;
}

.page-header a {
    color: #fff;
    margin-right: 1rem;
    text-decoration: none;
}

.page-content {
    padding: 1.5rem;
}

.card {
    background: #fff;
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.errors {
    color: #b00020;
}