:root {
    --bs-body-bg: #f8f9fa;
    --bs-body-color: #212529;
    --bs-card-bg: #ffffff;
    --bs-card-color: #212529;
    --bs-border-color: #dee2e6;
}

[data-theme="dark"] {
    --bs-body-bg: #212529;
    --bs-body-color: #f8f9fa;
    --bs-card-bg: #343a40;
    --bs-card-color: #ffffff;
    --bs-border-color: #495057;
}

body {
    background-color: var(--bs-body-bg);
    color: var(--bs-body-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.card {
    background-color: var(--bs-card-bg);
    color: var(--bs-card-color);
    border-color: var(--bs-border-color);
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.system-title {
    text-align: center;
    font-weight: bold;
    margin: 20px 0;
    color: var(--bs-body-color);
}

.btn-block {
    width: 100%;
}

.section-title {
    font-weight: bold;
    font-size: 1.3rem;
    margin-bottom: 15px;
}

/* Toast styling for dark mode */
[data-theme="dark"] .toast {
    background-color: #343a40;
    color: #ffffff;
}

[data-theme="dark"] .toast-header {
    background-color: #495057;
    color: #ffffff;
    border-bottom: 1px solid #6c757d;
}

/* Button styling for dark mode */
[data-theme="dark"] .btn-outline-primary {
    border-color: #0d6efd;
    color: #0d6efd;
}

[data-theme="dark"] .btn-outline-primary:hover {
    background-color: #0d6efd;
    color: white;
}

[data-theme="dark"] .btn-outline-secondary {
    border-color: #6c757d;
    color: #6c757d;
}

[data-theme="dark"] .btn-outline-secondary:hover {
    background-color: #6c757d;
    color: white;
}