:root {
    --bg-body: #f8fafc;
    --bg-card: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --primary-color: #2563eb;
    --header-bg: #2563eb;
    --header-text: #ffffff;
    --table-hover-bg: rgba(0, 0, 0, 0.075);
}

:root.dark-mode {
    --bg-body: #0f172a;
    --bg-card: #1e293b;
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --primary-color: #3b82f6;
    --header-bg: #1e293b;
    --header-text: #f1f5f9;
    --table-hover-bg: rgba(255, 255, 255, 0.1);
}

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

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

.table {
    color: var(--text-main);
    --bs-table-color: var(--text-main);
    --bs-table-bg: transparent;
    --bs-table-border-color: var(--border-color);
    --bs-table-hover-bg: var(--table-hover-bg);
    --bs-table-hover-color: var(--text-main);
    --bs-table-striped-color: var(--text-main);
    --bs-table-striped-bg: rgba(0, 0, 0, 0.05);
}

:root.dark-mode .table {
    --bs-table-striped-bg: rgba(255, 255, 255, 0.05);
}

.table thead th {
    background-color: var(--bg-body);
    color: var(--text-main);
    border-bottom-color: var(--border-color);
}

.form-control, .form-select {
    background-color: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-main);
}

.form-control:focus, .form-select:focus {
    background-color: var(--bg-card);
    color: var(--text-main);
    border-color: var(--primary-color);
}

/* Fix for disabled inputs in dark mode */
.form-control:disabled, .form-select:disabled {
    background-color: rgba(0, 0, 0, 0.05);
    color: var(--text-muted);
    border-color: var(--border-color);
}

:root.dark-mode .form-control:disabled, 
:root.dark-mode .form-select:disabled {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
    border-color: var(--border-color);
}

.form-label, .form-check-label {
    color: var(--text-main);
}

.input-group-text {
    background-color: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-main);
}

/* Dark mode specific overrides for Bootstrap components */
html.dark-mode .dropdown-menu {
    background-color: var(--bg-card);
    border-color: var(--border-color);
}

html.dark-mode .dropdown-item {
    color: var(--text-main);
}

html.dark-mode .dropdown-item:hover {
    background-color: var(--border-color);
}

html.dark-mode .modal-content {
    background-color: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-main);
}

html.dark-mode .modal-header,
html.dark-mode .modal-footer {
    border-color: var(--border-color);
}

html.dark-mode .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

/* List Group Dark Mode */
.list-group-item {
    background-color: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-main);
}

.list-group-item-action:hover, 
.list-group-item-action:focus {
    background-color: var(--table-hover-bg);
    color: var(--text-main);
}

/* Card Header Dark Mode Adaptation */
.card-header {
    background-color: rgba(0, 0, 0, 0.03);
    border-bottom-color: var(--border-color);
}

:root.dark-mode .card-header {
    background-color: rgba(255, 255, 255, 0.05);
}

.card-footer {
    background-color: rgba(0, 0, 0, 0.03);
    border-top-color: var(--border-color);
}

:root.dark-mode .card-footer {
    background-color: rgba(255, 255, 255, 0.05);
}

/* Nav Tabs Dark Mode */
.nav-tabs .nav-link {
    color: var(--text-muted);
}

.nav-tabs .nav-link:hover {
    border-color: var(--border-color);
    color: var(--text-main);
}

.nav-tabs .nav-link.active {
    background-color: var(--bg-card);
    border-color: var(--border-color);
    border-bottom-color: var(--bg-card);
    color: var(--primary-color);
}

:root.dark-mode .nav-tabs {
    border-bottom-color: var(--border-color);
}

/* Navbar Styling */
.navbar {
    background-color: var(--header-bg);
    color: var(--header-text);
}

.navbar .navbar-brand,
.navbar .nav-link {
    color: rgba(255, 255, 255, 0.9);
}

.navbar .nav-link:hover,
.navbar .nav-link:focus {
    color: #ffffff;
}

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

.navbar .dropdown-item {
    color: var(--text-main);
}

.navbar .dropdown-item:hover {
    background-color: var(--table-hover-bg);
}

/* Footer Styling */
footer {
    border-color: var(--border-color) !important;
    color: var(--text-muted) !important;
}

/* Bootstrap Utility Overrides for Dark Mode */
.text-muted {
    color: var(--text-muted) !important;
}

.border-top {
    border-color: var(--border-color) !important;
}

/* Alerts Dark Mode */
:root.dark-mode .alert-warning {
    background-color: #422006;
    color: #fcd34d;
    border-color: #78350f;
}

:root.dark-mode .alert-warning .alert-link {
    color: #fbbf24;
}

:root.dark-mode .alert-danger {
    background-color: #450a0a;
    color: #fca5a5;
    border-color: #7f1d1d;
}

:root.dark-mode .alert-success {
    background-color: #052e16;
    color: #86efac;
    border-color: #14532d;
}

:root.dark-mode .alert-info {
    background-color: #082f49;
    color: #7dd3fc;
    border-color: #0c4a6e;
}


/* Tom Select Dark Mode Support */
:root.dark-mode .ts-wrapper .ts-control {
    background-color: var(--bg-card) !important;
    color: var(--text-main) !important;
    border-color: var(--border-color) !important;
    background-image: none !important; /* Remove any bootstrap form-select background image */
}

:root.dark-mode .ts-wrapper .ts-control > input {
    color: var(--text-main) !important;
    background-color: transparent !important; /* Ensure input is transparent */
}

:root.dark-mode .ts-wrapper.focus .ts-control {
    border-color: var(--primary-color) !important;
    box-shadow: 0 0 0 0.25rem rgba(59, 130, 246, 0.25) !important;
}

/* Dropdown Menu */
:root.dark-mode .ts-dropdown,
:root.dark-mode .ts-dropdown .ts-dropdown-content {
    background-color: var(--bg-card) !important;
    color: var(--text-main) !important;
    border-color: var(--border-color) !important;
}

/* Options */
:root.dark-mode .ts-dropdown .option {
    color: var(--text-main) !important;
    background-color: var(--bg-card) !important;
}

:root.dark-mode .ts-dropdown .option.active,
:root.dark-mode .ts-dropdown .option:hover {
    background-color: var(--table-hover-bg) !important;
    color: var(--text-main) !important;
}

:root.dark-mode .ts-dropdown .option.selected {
    background-color: rgba(37, 99, 235, 0.2) !important; /* Light blue for selected */
    color: var(--primary-color) !important;
}

/* Optgroups */
:root.dark-mode .ts-dropdown .optgroup-header {
    background-color: var(--bg-body) !important;
    color: var(--text-muted) !important;
}

/* Selected Items (in the input area) */
:root.dark-mode .ts-control .item {
    color: var(--text-main) !important;
}

:root.dark-mode .ts-wrapper.multi .ts-control .item {
    background-color: rgba(255, 255, 255, 0.1) !important;
    border: 1px solid var(--border-color);
    border-radius: 3px;
    padding: 0 5px;
}

/* Clear Button */
:root.dark-mode .ts-control .clear-button {
    color: var(--text-muted) !important;
}

/* Fix for dropdown border in dark mode */
:root.dark-mode .ts-dropdown {
    border: 1px solid var(--border-color) !important;
}

/* Ensure the arrow/caret is visible in dark mode */
:root.dark-mode .ts-wrapper.single .ts-control::after {
    border-color: var(--text-muted) transparent transparent transparent !important;
}

:root.dark-mode .ts-wrapper.single.dropdown-active .ts-control::after {
    border-color: transparent transparent var(--text-muted) transparent !important;
}

/* Remove the arrow background from bootstrap form-select if it persists */
.ts-wrapper.form-select, 
:root.dark-mode .ts-wrapper.form-select {
    background-image: none !important;
    padding-right: 0.75rem !important; /* Reset padding if bootstrap adds space for arrow */
}

/* Hide selected item when dropdown is active (searching) to allow clean searching */
.ts-wrapper.single.dropdown-active .ts-control .item {
    display: none !important;
}

/* File Upload Drop Zone */
.drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: 0.5rem;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    background-color: var(--bg-body);
    cursor: pointer;
}

.drop-zone:hover, .drop-zone.dragover {
    border-color: var(--primary-color);
    background-color: var(--table-hover-bg);
}

.drop-zone-input {
    display: none;
}

.file-list {
    margin-top: 1rem;
}

.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem;
    background-color: var(--bg-body);
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
    margin-bottom: 0.5rem;
}


@media (min-width: 768px) { 
    .w-md-auto { width: auto !important; } 
    .header-actions { width: auto !important; margin-left: auto; }
}
.header-actions { width: 100%; }

/* Mobile Bottom Navigation */
.mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--bg-card);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    padding: 0.5rem 0;
    z-index: 1040;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
}

.mobile-bottom-nav .nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 0.5rem;
    transition: all 0.2s;
}

.mobile-bottom-nav .nav-item i {
    font-size: 1.25rem;
    margin-bottom: 0.1rem;
}

.mobile-bottom-nav .nav-item.active {
    color: var(--primary-color);
    background-color: rgba(37, 99, 235, 0.1);
}

/* Adjust main content for bottom nav */
@media (max-width: 767.98px) {
    body {
        padding-bottom: 70px; /* Height of bottom nav + spacing */
    }
}