:root {
    --bg-color: #f8f9fa;
    --text-color: #212529;
    --card-bg: #ffffff;
    --card-border: rgba(0,0,0,0.125);
    --card-shadow: 0 2px 4px rgba(0,0,0,0.1);
    --heading-color: #333;
    --footer-bg: #f8f9fa;
    --footer-text: #6c757d;
    --table-hover-bg: rgba(0,0,0,0.075);
}

[data-theme="dark"] {
    --bg-color: #1a1a1a;
    --text-color: #e4e4e4;
    --card-bg: #2d2d2d;
    --card-border: rgba(255,255,255,0.3);
    --card-shadow: 0 2px 4px rgba(0,0,0,0.3);
    --heading-color: #e4e4e4;
    --footer-bg: #2d2d2d;
    --footer-text: #a0a0a0;
    --table-hover-bg: rgba(255,255,255,0.075);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.navbar-brand {
    font-size: 1.5rem;
}

.card {
    box-shadow: var(--card-shadow);
    border: 1px solid var(--card-border);
    background-color: var(--card-bg);
    margin-bottom: 1.5rem;
    transition: background-color 0.3s ease, border-color 0.3s ease;
    position: relative;
    z-index: 1;
    overflow: visible;
}

.card-header {
    font-weight: 600;
    position: relative;
    overflow: visible;
}

/* Muted card header colors in dark mode */
[data-theme="dark"] .card-header.bg-primary {
    background-color: #1e3a5f !important;
}

[data-theme="dark"] .card-header.bg-success {
    background-color: #1e4d2b !important;
}

[data-theme="dark"] .card-header.bg-info {
    background-color: #1e4a5a !important;
}

[data-theme="dark"] .card-header.bg-warning {
    background-color: #5a4a1e !important;
}

[data-theme="dark"] .card-header.bg-danger {
    background-color: #5a1e1e !important;
}

[data-theme="dark"] .card-header.bg-secondary {
    background-color: #3a3a3a !important;
}

[data-theme="dark"] .card-body {
    color: #f0f0f0;
    background-color: var(--card-bg);
    position: relative;
    overflow: visible;
}

.card-body {
    background-color: var(--card-bg);
    position: relative;
    overflow: visible;
}

[data-theme="dark"] .card-title {
    color: #f0f0f0;
}

[data-theme="dark"] .card-text {
    color: #e0e0e0;
}

[data-theme="dark"] .ms-3 {
    color: #e0e0e0;
}

footer {
    margin-top: 4rem;
    background-color: var(--footer-bg) !important;
    color: var(--footer-text);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.table-sm td, .table-sm th {
    padding: 0.3rem;
}

.table {
    color: var(--text-color);
}

.table-hover tbody tr:hover {
    background-color: var(--table-hover-bg);
}

[data-theme="dark"] strong {
  color: #e4e4e4;
}

[data-theme="dark"] .table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(255,255,255,0.05);
    color: #e4e4e4;
}

[data-theme="dark"] .table-striped tbody tr:nth-of-type(odd) > * {
    background-color: rgba(255,255,255,0.05);
}

[data-theme="dark"] .table-striped tbody tr:nth-of-type(even) {
    background-color: var(--card-bg);
}

[data-theme="dark"] .table-striped tbody tr {
    color: #e4e4e4;
}

[data-theme="dark"] .table-striped td,
[data-theme="dark"] .table-striped th {
    color: #e4e4e4;
}

[data-theme="dark"] .table-bordered {
    border-color: var(--card-border);
}

[data-theme="dark"] .table-bordered td,
[data-theme="dark"] .table-bordered th {
    border-color: var(--card-border);
}

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

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

[data-theme="dark"] .table td,
[data-theme="dark"] .table th {
    background-color: var(--card-bg);
    color: #e4e4e4;
}

[data-theme="dark"] .table-sm td,
[data-theme="dark"] .table-sm th {
    color: #e4e4e4;
}

[data-theme="dark"] td.text-center {
    color: #e0e0e0;
}

/* Improve visibility of table row variants in dark mode */
[data-theme="dark"] .table-primary,
[data-theme="dark"] .table-primary > * {
    background-color: #1e3a5f !important;
    color: #e4e4e4 !important;
}

[data-theme="dark"] .table-success,
[data-theme="dark"] .table-success > * {
    background-color: #1e4d2b !important;
    color: #e4e4e4 !important;
}

[data-theme="dark"] .table-info,
[data-theme="dark"] .table-info > * {
    background-color: #1e4a5a !important;
    color: #e4e4e4 !important;
}

[data-theme="dark"] .table-warning,
[data-theme="dark"] .table-warning > * {
    background-color: #5a4a1f !important;
    color: #e4e4e4 !important;
}

[data-theme="dark"] .table-danger,
[data-theme="dark"] .table-danger > * {
    background-color: #5a1f1f !important;
    color: #e4e4e4 !important;
}

.form-control:focus {
    border-color: #0d6efd;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
    background-color: #3a3a3a;
    border-color: var(--card-border);
    color: var(--text-color);
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
    background-color: #3a3a3a;
    color: var(--text-color);
}

[data-theme="dark"] .form-control::placeholder {
    color: #a0a0a0;
}

/* Improve label visibility in dark mode */
[data-theme="dark"] label,
[data-theme="dark"] .form-label {
    color: #d0d0d0;
}

[data-theme="dark"] th,
[data-theme="dark"] .table th {
    color: #d0d0d0;
}

.btn {
    font-weight: 500;
}

.alert {
    border-radius: 0.25rem;
}

.alert-error {
    background-color: #8b4513;
    color: #fee2e2;
    border-color: #991b1b;
}

.list-group-item {
    border: 1px solid var(--card-border);
    background-color: var(--card-bg);
    color: var(--text-color);
}

h1, h2, h3, h4, h5 {
    color: var(--heading-color);
}

[data-theme="dark"] h1,
[data-theme="dark"] h2,
[data-theme="dark"] h3,
[data-theme="dark"] h4,
[data-theme="dark"] h5,
[data-theme="dark"] h6 {
    color: #e4e4e4;
}

.text-muted {
    color: #6c757d !important;
}

[data-theme="dark"] .text {
    color: #e4e4e4 !important;
}


[data-theme="dark"] .text-muted {
    color: #b0b0b0 !important;
    background-color: none;
}

[data-theme="dark"] .text-secondary {
    color: #b0b0b0 !important;
}

/* Improve link visibility in dark mode */
[data-theme="dark"] a {
    color: #6ea8fe;
}

[data-theme="dark"] a:hover {
    color: #9ec5fe;
}

[data-theme="dark"] .text-decoration-none {
    color: var(--text-color);
}

[data-theme="dark"] .text-decoration-none:hover {
    color: #6ea8fe;
}

/* Improve badge text visibility with darker backgrounds */
[data-theme="dark"] .badge {
    border: 1px solid rgba(255,255,255,0.2);
}

[data-theme="dark"] .badge.bg-primary {
    background-color: #1e3a5f !important;
}

[data-theme="dark"] .badge.bg-success {
    background-color: #1e4d2b !important;
}

[data-theme="dark"] .badge.bg-danger {
    background-color: #5a1f1f !important;
}

[data-theme="dark"] .badge.bg-info {
    background-color: #1e4a5a !important;
}

[data-theme="dark"] .bg-warning {
    background-color: #a17900 !important;
}

[data-theme="dark"] .badge.bg-warning {
    background-color: #5a4a1f !important;
    color: #f0f0f0 !important;
}

/* Better contrast for primary elements */
[data-theme="dark"] .text-primary {
    color: #6ea8fe !important;
}

[data-theme="dark"] .text-success {
    color: #75b798 !important;
}

[data-theme="dark"] .text-danger {
    color: #ea868f !important;
}

[data-theme="dark"] .text-warning {
    color: #ffda6a !important;
}

[data-theme="dark"] .text-info {
    color: #6edff6 !important;
}

/* Alert text colors */
[data-theme="dark"] .alert {
    border-color: var(--card-border);
}

[data-theme="dark"] .alert-info {
    background-color: #0c4a6e;
    color: #e0f2fe;
    border-color: #075985;
}

[data-theme="dark"] .alert-warning {
    background-color: #8b4513;
    color: #fef3c7;
    border-color: #a0522d;
}

[data-theme="dark"] .alert-error {
    background-color: #8b4513;
    color: #fee2e2;
    border-color: #991b1b;
}

[data-theme="dark"] .alert-danger {
    background-color: #7f1d1d;
    color: #fee2e2;
    border-color: #991b1b;
}

[data-theme="dark"] .alert-success {
    background-color: #14532d;
    color: #d1fae5;
    border-color: #166534;
}

[data-theme="dark"] .alert-secondary {
    background-color: #3a3a3a;
    color: #e4e4e4;
    border-color: #4a4a4a;
}

/* Dark mode toggle button */
#theme-toggle {
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.25rem 0.5rem;
    background: none;
    border: none;
    color: white;
    transition: transform 0.3s ease;
}

#theme-toggle:hover {
    transform: scale(1.1);
}

/* Modal dark mode support */
[data-theme="dark"] .modal-content {
    background-color: var(--card-bg);
    color: var(--text-color);
}

[data-theme="dark"] .modal-header,
[data-theme="dark"] .modal-footer {
    border-color: var(--card-border);
}

[data-theme="dark"] .modal-header {
    background-color: #1a1a1a;
}

[data-theme="dark"] .btn-close {
    filter: invert(1);
}

/* Improve disabled input visibility */
[data-theme="dark"] .form-control:disabled,
[data-theme="dark"] .form-select:disabled {
    background-color: #2a2a2a;
    color: #888;
}

/* Better table header visibility */
[data-theme="dark"] .table thead {
    color: var(--text-color);
}

/* Improve footer text and background */
[data-theme="dark"] footer {
    background-color: var(--footer-bg) !important;
}

[data-theme="dark"] footer p {
    color: #b0b0b0;
}

[data-theme="dark"] footer .text-muted {
    color: #b0b0b0 !important;
}

/* Support for light backgrounds in dark mode */
[data-theme="dark"] .bg-light {
    background-color: #3a3a3a !important;
}

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

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

/* Ensure nested cards don't overlap borders */
.card .card {
    z-index: auto;
}