:root {
    /* Light theme colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --border-color: #dee2e6;
    --link-color: #0d6efd;
    --link-hover-color: #0a58ca;
    --card-bg: #ffffff;
    --input-bg: #ffffff;
    --input-border: #ced4da;
    --btn-primary-bg: #0d6efd;
    --btn-primary-text: #ffffff;
    --btn-secondary-bg: #6c757d;
    --btn-secondary-text: #ffffff;
    --navbar-bg: #f8f9fa;
    --navbar-text: #212529;
    --modal-bg: #ffffff;
    --modal-border: #dee2e6;
    --progress-bar-bg: #e9ecef;
    --bs-form-control-readonly-bg: #e9ecef;
    --bs-form-control-readonly-color: #212529;
}

[data-theme="dark"] {
    /* Dark theme colors */
    --bg-primary: #212529;
    --bg-secondary: #343a40;
    --text-primary: #f8f9fa;
    --text-secondary: #adb5bd;
    --border-color: #495057;
    --link-color: #6ea8fe;
    --link-hover-color: #9ec5fe;
    --card-bg: #343a40;
    --input-bg: #495057;
    --input-border: #6c757d;
    --btn-primary-bg: #0d6efd;
    --btn-primary-text: #ffffff;
    --btn-secondary-bg: #6c757d;
    --btn-secondary-text: #ffffff;
    --navbar-bg: #343a40;
    --navbar-text: #f8f9fa;
    --modal-bg: #343a40;
    --modal-border: #495057;
    --progress-bar-bg: #495057;
    --bs-form-control-readonly-bg: #2b3035;
    --bs-form-control-readonly-color: #dee2e6;
}

/* Apply theme colors */
body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.navbar {
    background-color: var(--navbar-bg) !important;
    border-bottom: 1px solid var(--border-color);
}

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

.card {
    background-color: var(--card-bg);
    border-color: var(--border-color);
}

.modal-content {
    background-color: var(--modal-bg);
    border-color: var(--modal-border);
}

.form-control {
    background-color: var(--input-bg);
    border-color: var(--input-border);
    color: var(--text-primary);
}

.form-control:focus {
    background-color: var(--input-bg);
    color: var(--text-primary);
}

.btn-primary {
    background-color: var(--btn-primary-bg);
    border-color: var(--btn-primary-bg);
    color: var(--btn-primary-text);
}

.btn-secondary {
    background-color: var(--btn-secondary-bg);
    border-color: var(--btn-secondary-bg);
    color: var(--btn-secondary-text);
}

.text-muted {
    color: var(--text-secondary) !important;
}

a {
    color: var(--link-color);
}

a:hover {
    color: var(--link-hover-color);
}

.progress {
    background-color: var(--progress-bar-bg);
}

/* Theme toggle button */
.theme-toggle {
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-primary);
    transition: background-color 0.3s ease;
}

.theme-toggle:hover {
    background-color: var(--bg-secondary);
}

.theme-toggle i {
    font-size: 1.2rem;
}

/* Dark mode specific styles */
[data-theme="dark"] .form-control::placeholder {
    color: var(--text-secondary);
}

[data-theme="dark"] .table {
    color: var(--text-primary);
}

[data-theme="dark"] .border {
    border-color: var(--border-color) !important;
}

/* Readonly form controls */
.form-control-readonly {
    background-color: var(--bs-form-control-readonly-bg) !important;
    color: var(--bs-form-control-readonly-color) !important;
    border-color: var(--border-color);
    opacity: 1;
}

/* Input group with readonly field */
.input-group .form-control-readonly {
    background-color: var(--bs-form-control-readonly-bg) !important;
    color: var(--bs-form-control-readonly-color) !important;
}

/* Ensure readonly fields are visible in both themes */
.form-control:read-only,
.form-control[readonly] {
    background-color: var(--bs-form-control-readonly-bg);
    color: var(--bs-form-control-readonly-color);
    opacity: 1;
}