:root {
    --card-bg-light: #eeeeef;
    --card-bg-dark: #476889;
    --card-border-light: #dee2e6;
    --card-border-dark: #495057;
}

[data-theme="dark"] {
    --card-bg-light: #cfddea;
    --card-bg-dark: #576b7e;
    --card-border-light: #495057;
    --card-border-dark: #343a40;
}

.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.auth-card {
    width: 400px;
    height: 500px;
    background-color: var(--card-bg-light);
    border: 1px solid var(--card-border-light);
    border-radius: 0.5rem;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    padding: 2rem;
    position: relative; /* Added for positioning the close button */
}

[data-theme="dark"] .auth-card {
    background-color: var(--card-bg-dark);
    border-color: var(--card-border-dark);
}

.close-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 2.0rem;
    text-decoration: none;
    color: #000; /* Default color for light mode */
}

[data-theme="dark"] .close-btn {
    color: #fff; /* Color for dark mode */
}