/* ==========================================================================
   Theme CSS - Light/Dark Mode Support
   ========================================================================== */

:root {
    /* Background Colors */
    --bg-body: #ffffff;
    --bg-card: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --bg-input: #ffffff;

    /* Text Colors */
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-muted: #adb5bd;
    --text-link: #0d6efd;
    --text-link-hover: #0a58ca;

    /* Border Colors */
    --border-color: #dee2e6;
    --border-light: #e9ecef;
    --border-input: #ced4da;
    --border-focus: #86b7fe;

    /* Brand Colors */
    --color-primary: #6366f1;
    --color-primary-hover: #5558e8;
    --color-primary-rgb: 99, 102, 241;
    --color-secondary: #8b5cf6;
    --color-success: #198754;
    --color-success-hover: #157347;
    --color-danger: #dc3545;
    --color-danger-hover: #bb2d3b;
    --color-warning: #ffc107;
    --color-info: #0dcaf0;

    /* Component Colors */
    --navbar-bg: #ffffff;
    --navbar-border: #dee2e6;
    --card-bg: #ffffff;
    --card-border: #dee2e6;
    --dropdown-bg: #ffffff;
    --dropdown-border: #dee2e6;
    --modal-bg: #ffffff;
    --table-stripe: #f8f9fa;
    --code-bg: #f8f9fa;

    /* Button Colors */
    --btn-light-bg: #f8f9fa;
    --btn-light-border: #dee2e6;
    --btn-light-hover: #e9ecef;

    /* Form Colors */
    --form-check-bg: #ffffff;
    --form-check-border: #dee2e6;

    /* Shadows */
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow-md: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);

    /* Misc */
    --scrollbar-track: #f1f1f1;
    --scrollbar-thumb: #c1c1c1;
    --scrollbar-thumb-hover: #a1a1a1;
}

/* ==========================================================================
   Dark Mode Overrides
   ========================================================================== */

html.dark-mode {
    /* Background Colors */
    --bg-body: #1a1a2e;
    --bg-card: #16213e;
    --bg-secondary: #0f3460;
    --bg-tertiary: #1f2b4a;
    --bg-input: #16213e;

    /* Text Colors */
    --text-primary: #eaeaea;
    --text-secondary: #b0b0b0;
    --text-muted: #808080;
    --text-link: #7c83fd;
    --text-link-hover: #9da3fd;

    /* Border Colors */
    --border-color: #2d3a5a;
    --border-light: #1f2b4a;
    --border-input: #3d4a6a;
    --border-focus: #7c83fd;

    /* Brand Colors */
    --color-primary: #7209b7;
    --color-primary-hover: #560bad;
    --color-primary-rgb: 114, 9, 183;
    --color-secondary: #3a86ff;
    --color-success: #20c997;
    --color-success-hover: #1aa179;
    --color-danger: #f87171;
    --color-danger-hover: #ef4444;
    --color-warning: #fbbf24;
    --color-info: #38bdf8;

    /* Component Colors */
    --navbar-bg: #16213e;
    --navbar-border: #2d3a5a;
    --card-bg: #16213e;
    --card-border: #2d3a5a;
    --dropdown-bg: #16213e;
    --dropdown-border: #2d3a5a;
    --modal-bg: #16213e;
    --table-stripe: #1f2b4a;
    --code-bg: #1f2b4a;

    /* Button Colors */
    --btn-light-bg: #1f2b4a;
    --btn-light-border: #2d3a5a;
    --btn-light-hover: #2d3a5a;

    /* Form Colors */
    --form-check-bg: #16213e;
    --form-check-border: #3d4a6a;

    /* Shadows */
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.3);
    --shadow-md: 0 0.5rem 1rem rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.5);

    /* Misc */
    --scrollbar-track: #1f2b4a;
    --scrollbar-thumb: #3d4a6a;
    --scrollbar-thumb-hover: #4d5a7a;
}

/* ==========================================================================
   Base Element Styles
   ========================================================================== */

body {
    background-color: var(--bg-body);
    color: var(--text-primary);
    transition: background-color 0.2s ease, color 0.2s ease;
}

/* Links */
a {
    color: var(--text-link);
}

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

/* Text utilities */
.text-muted {
    color: var(--text-secondary) !important;
}

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

/* ==========================================================================
   Bootstrap Component Overrides
   ========================================================================== */

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

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

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

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

.card-header,
.card-footer {
    background-color: var(--bg-secondary);
    border-color: var(--card-border);
}

/* Dark mode card overrides - force Bootstrap variable overrides */
html.dark-mode .card {
    --bs-card-bg: var(--card-bg);
    --bs-card-border-color: var(--card-border);
    background-color: var(--card-bg) !important;
    border-color: var(--card-border) !important;
    color: var(--text-primary);
}

html.dark-mode .card-header {
    background-color: var(--bg-secondary) !important;
    border-color: var(--card-border) !important;
    color: var(--text-primary);
}

html.dark-mode .card-body {
    background-color: var(--card-bg) !important;
    color: var(--text-primary);
}

/* Buttons */
.btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}

.btn-success {
    background-color: var(--color-success);
    border-color: var(--color-success);
}

.btn-success:hover,
.btn-success:focus {
    background-color: var(--color-success-hover);
    border-color: var(--color-success-hover);
}

.btn-danger {
    background-color: var(--color-danger);
    border-color: var(--color-danger);
}

.btn-danger:hover,
.btn-danger:focus {
    background-color: var(--color-danger-hover);
    border-color: var(--color-danger-hover);
}

.btn-outline-secondary {
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-outline-secondary:hover {
    background-color: var(--btn-light-hover);
    border-color: var(--border-color);
    color: var(--text-primary);
}

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

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

/* Forms */
.form-control,
.form-select {
    background-color: var(--bg-input);
    border-color: var(--border-input);
    color: var(--text-primary);
}

.form-control:focus,
.form-select:focus {
    background-color: var(--bg-input);
    border-color: var(--border-focus);
    color: var(--text-primary);
    box-shadow: 0 0 0 0.25rem rgba(var(--color-primary-rgb), 0.25);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-label {
    color: var(--text-primary);
}

.form-text {
    color: var(--text-secondary);
}

.form-check-input {
    background-color: var(--form-check-bg);
    border-color: var(--form-check-border);
}

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

/* Input groups */
.input-group-text {
    background-color: var(--bg-secondary);
    border-color: var(--border-input);
    color: var(--text-primary);
}

/* Dropdowns */
.dropdown-menu {
    background-color: var(--dropdown-bg);
    border-color: var(--dropdown-border);
}

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

.dropdown-item:hover,
.dropdown-item:focus {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.dropdown-divider {
    border-color: var(--border-color);
}

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

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

.btn-close {
    filter: var(--btn-close-filter, none);
}

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

/* Tables */
.table {
    color: var(--text-primary);
    border-color: var(--border-color);
}

.table > :not(caption) > * > * {
    background-color: var(--bg-card);
    border-color: var(--border-color);
}

.table-striped > tbody > tr:nth-of-type(odd) > * {
    background-color: var(--table-stripe);
}

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

/* Dark mode table overrides */
html.dark-mode .table {
    --bs-table-bg: var(--bg-card);
    --bs-table-color: var(--text-primary);
    --bs-table-border-color: var(--border-color);
    color: var(--text-primary);
}

html.dark-mode .table > :not(caption) > * > * {
    background-color: var(--bg-card);
    color: var(--text-primary);
    border-color: var(--border-color);
}

html.dark-mode .table th,
html.dark-mode .table td {
    color: var(--text-primary);
}

html.dark-mode .table-light,
html.dark-mode .table-light > th,
html.dark-mode .table-light > td,
html.dark-mode thead.table-light,
html.dark-mode thead.table-light th {
    --bs-table-bg: var(--bg-secondary) !important;
    --bs-table-color: var(--text-primary) !important;
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    border-color: var(--border-color) !important;
}

html.dark-mode .table-hover > tbody > tr:hover > * {
    --bs-table-hover-bg: var(--bg-tertiary);
    background-color: var(--bg-tertiary) !important;
    color: var(--text-primary);
}

html.dark-mode .table-danger,
html.dark-mode .table-danger > th,
html.dark-mode .table-danger > td,
html.dark-mode tr.table-danger > * {
    --bs-table-bg: rgba(220, 53, 69, 0.2) !important;
    background-color: rgba(220, 53, 69, 0.2) !important;
    color: #f8d7da !important;
}

html.dark-mode .table-warning,
html.dark-mode .table-warning > th,
html.dark-mode .table-warning > td,
html.dark-mode tr.table-warning > * {
    --bs-table-bg: rgba(255, 193, 7, 0.2) !important;
    background-color: rgba(255, 193, 7, 0.2) !important;
    color: #fff3cd !important;
}

/* Alerts */
.alert-light {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.alert-info {
    background-color: rgba(var(--color-primary-rgb), 0.1);
    border-color: var(--color-primary);
    color: var(--text-primary);
}

/* Badges */
.badge.bg-light {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

/* List groups */
.list-group-item {
    background-color: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.list-group-item:hover {
    background-color: var(--bg-secondary);
}

/* Accordions */
.accordion-item {
    background-color: var(--bg-card);
    border-color: var(--border-color);
}

.accordion-button {
    background-color: var(--bg-card);
    color: var(--text-primary);
}

.accordion-button:not(.collapsed) {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.accordion-button::after {
    filter: var(--accordion-icon-filter, none);
}

html.dark-mode .accordion-button::after {
    filter: invert(1) grayscale(100%) brightness(200%);
}

/* Breadcrumbs */
.breadcrumb {
    background-color: var(--bg-secondary);
}

.breadcrumb-item + .breadcrumb-item::before {
    color: var(--text-muted);
}

.breadcrumb-item.active {
    color: var(--text-secondary);
}

/* Pagination */
.page-link {
    background-color: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-link);
}

.page-link:hover {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-link-hover);
}

.page-item.active .page-link {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.page-item.disabled .page-link {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-muted);
}

/* Progress bars */
.progress {
    background-color: var(--bg-tertiary);
}

/* Code */
code {
    background-color: var(--code-bg);
    color: var(--color-danger);
}

pre {
    background-color: var(--code-bg);
    border-color: var(--border-color);
    color: var(--text-primary);
}

/* Horizontal rules */
hr {
    border-color: var(--border-color);
    opacity: 1;
}

/* Dark mode border utility classes */
html.dark-mode .border {
    border-color: var(--border-color) !important;
}

html.dark-mode .border-light {
    border-color: var(--border-color) !important;
}

/* Scrollbar (Webkit) */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

/* ==========================================================================
   Theme Toggle Button
   ========================================================================== */

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.25rem;
    padding: 0.5rem;
    cursor: pointer;
    transition: color 0.2s ease, transform 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    color: var(--text-link);
    transform: scale(1.1);
}

.theme-toggle:focus {
    outline: none;
    box-shadow: none;
}

/* Show/hide icons based on theme */
.theme-toggle .fa-moon {
    display: inline-block;
}

.theme-toggle .fa-sun {
    display: none;
}

html.dark-mode .theme-toggle .fa-moon {
    display: none;
}

html.dark-mode .theme-toggle .fa-sun {
    display: inline-block;
}

/* ==========================================================================
   Footer Overrides
   ========================================================================== */

footer {
    background-color: var(--bg-secondary) !important;
    border-top: 1px solid var(--border-color);
}

footer a {
    color: var(--text-secondary);
}

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

/* ==========================================================================
   Dark Mode Additional Fixes
   ========================================================================== */

/* Card headings - ensure visibility in dark mode */
html.dark-mode .card h5,
html.dark-mode .card h6,
html.dark-mode .card .card-title,
html.dark-mode .feature-card h5,
html.dark-mode .poll-type-card h5 {
    color: var(--text-primary) !important;
}

/* Card text content */
html.dark-mode .card strong,
html.dark-mode .card li,
html.dark-mode .card p {
    color: var(--text-primary);
}

/* List group items (used in modals like Close Poll) */
.list-group-item {
    color: var(--text-primary);
}

.list-group-item-action {
    color: var(--text-primary);
}

.list-group-item-action:hover,
.list-group-item-action:focus {
    color: var(--text-primary);
}

html.dark-mode .list-group-item {
    background-color: var(--bg-card);
    color: var(--text-primary);
    border-color: var(--border-color);
}

html.dark-mode .list-group-item-action {
    background-color: var(--bg-card);
    color: var(--text-primary);
}

html.dark-mode .list-group-item-action:hover,
html.dark-mode .list-group-item-action:focus {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

html.dark-mode .list-group-item-action.active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

/* Ensure modal list-group text is always visible */
.modal .list-group-item,
.modal .list-group-item-action {
    color: var(--text-primary);
}

.modal .list-group-item-action.active {
    color: white;
}

/* Duration/outline buttons */
html.dark-mode .btn-outline-light {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-primary);
}

html.dark-mode .btn-outline-light:hover,
html.dark-mode .btn-outline-light.active {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-primary);
}

html.dark-mode .btn-outline-dark {
    border-color: var(--border-color);
    color: var(--text-primary);
}

html.dark-mode .btn-outline-dark:hover {
    background-color: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-primary);
}

/* Twitter/X icon visibility */
html.dark-mode .fa-x-twitter,
html.dark-mode .fa-brands.fa-x-twitter {
    color: var(--text-primary) !important;
}

/* Alert warning in dark mode */
html.dark-mode .alert-warning {
    background-color: rgba(251, 191, 36, 0.15);
    border-color: rgba(251, 191, 36, 0.3);
    color: var(--color-warning);
}

/* Modal improvements */
html.dark-mode .modal-content {
    background-color: var(--modal-bg);
    color: var(--text-primary);
    border-color: var(--border-color);
}

html.dark-mode .modal-header,
html.dark-mode .modal-body,
html.dark-mode .modal-footer {
    background-color: var(--modal-bg);
    color: var(--text-primary);
    border-color: var(--border-color);
}

html.dark-mode .modal-title {
    color: var(--text-primary);
}

/* Modal text elements */
html.dark-mode .modal p,
html.dark-mode .modal label,
html.dark-mode .modal span {
    color: var(--text-primary);
}

html.dark-mode .modal .badge {
    color: white;
}

/* Email icon in social share */
html.dark-mode .fa-envelope {
    color: var(--text-primary);
}

/* Cards inside modals */
html.dark-mode .modal-body .card {
    background-color: var(--bg-card);
    border-color: var(--border-color);
}

html.dark-mode .modal-body .card-body {
    background-color: var(--bg-card);
}

html.dark-mode .modal-body .card h6,
html.dark-mode .modal-body .card p {
    color: var(--text-primary);
}

html.dark-mode .modal-body .card p.small,
html.dark-mode .modal-body .card .text-muted {
    color: var(--text-secondary) !important;
}

/* Social share button icons in dark mode */
html.dark-mode .btn-outline-dark i {
    color: inherit;
}

/* Form check/switch dark mode */
html.dark-mode .form-check-input:checked {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

/* Small text helper classes */
html.dark-mode small.text-muted,
html.dark-mode .small.text-muted {
    color: var(--text-secondary) !important;
}

/* Bootstrap .bg-light override for dark mode */
html.dark-mode .bg-light {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

/* Best Option section in Results page (schedule poll close) */
html.dark-mode .best-option {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

html.dark-mode .best-option h5,
html.dark-mode .best-option p,
html.dark-mode .best-option strong {
    color: var(--text-primary) !important;
}