:root {
    --background-color: #ffffff;
    --text-color: #212529;
    --secondary-background: #f8f9fa; /* bg-light */
    --navbar-text-color: rgba(0, 0, 0, 0.55);
    --form-border-color: #ced4da;
}

[data-theme="dark"] {
    --background-color: #212529;
    --text-color: #f8f9fa;
    --secondary-background: #343a40;
    --navbar-text-color: rgba(255, 255, 255, 0.55);
    --form-border-color: #495057;
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
}

.bg-light {
    background-color: var(--secondary-background) !important;
}

.navbar-light .navbar-nav .nav-link {
    color: var(--navbar-text-color);
}

.navbar-brand {
    color: var(--text-color) !important;
}

/* Dark mode overrides for specific components */

[data-theme="dark"] .form-control {
    background-color: var(--secondary-background);
    color: var(--text-color);
    border-color: var(--form-border-color);
}

[data-theme="dark"] .form-control:focus {
    background-color: var(--secondary-background);
    color: var(--text-color);
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

[data-theme="dark"] .form-control::placeholder {
    color: #6c757d;
}

[data-theme="dark"] .card {
    background-color: var(--secondary-background);
    border-color: rgba(255, 255, 255, 0.125);
    color: var(--text-color);
}

/* Text color overrides for dark mode */
[data-theme="dark"] .text-secondary,
[data-theme="dark"] .text-muted {
    color: #adb5bd !important;
}

[data-theme="dark"] h1, 
[data-theme="dark"] h2, 
[data-theme="dark"] h3, 
[data-theme="dark"] h4, 
[data-theme="dark"] h5, 
[data-theme="dark"] h6,
[data-theme="dark"] .lead {
    color: var(--text-color);
}