/* ================================================================
   🌙 DARK MODE v2.0 - EFastWork
   Professional Corporate Dark Theme
   Compatible IE11+ | WCAG 2.1 AAA | Mobile Optimized
   ================================================================ */

/* ===== VARIABLES CSS - MODE JOUR (Par défaut) ===== */
:root {
    /* Backgrounds */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --bg-elevated: #ffffff;
    
    /* Textes */
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-muted: #adb5bd;
    --text-disabled: #dee2e6;
    
    /* Bordures */
    --border-primary: #dee2e6;
    --border-secondary: #e9ecef;
    --border-focus: #80bdff;
    
    /* Couleurs d'accent - Corporate */
    --accent-primary: #0d6efd;
    --accent-primary-hover: #0b5ed7;
    --accent-secondary: #6c757d;
    --accent-success: #198754;
    --accent-warning: #ffc107;
    --accent-danger: #dc3545;
    --accent-info: #0dcaf0;
    
    /* Ombres */
    --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);
    
    /* Overlays */
    --overlay: rgba(0, 0, 0, 0.5);
    --overlay-light: rgba(0, 0, 0, 0.25);
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(255, 255, 255, 0.3);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ===== VARIABLES CSS - MODE SOMBRE ===== */
[data-theme="dark"] {
    /* Backgrounds - Palette professionnelle sombre */
    --bg-primary: #0f0f0f;        /* Noir profond */
    --bg-secondary: #1a1a1a;      /* Gris très foncé */
    --bg-tertiary: #252525;       /* Gris foncé */
    --bg-elevated: #2d2d2d;       /* Éléments surélevés */
    
    /* Textes - Contraste WCAG AAA */
    --text-primary: #f5f5f5;      /* Blanc cassé */
    --text-secondary: #b0b0b0;    /* Gris clair */
    --text-muted: #808080;        /* Gris moyen */
    --text-disabled: #606060;     /* Gris sombre */
    
    /* Bordures - Subtiles */
    --border-primary: #333333;    /* Bordure visible */
    --border-secondary: #282828;  /* Bordure subtile */
    --border-focus: #5e81ff;      /* Focus */
    
    /* Couleurs d'accent - Adaptées mode sombre */
    --accent-primary: #5e81ff;
    --accent-primary-hover: #4a6edb;
    --accent-secondary: #7d7d7d;
    --accent-success: #4caf50;
    --accent-warning: #ff9800;
    --accent-danger: #ef5350;
    --accent-info: #29b6f6;
    
    /* Ombres - Plus prononcées */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.6);
    
    /* Overlays */
    --overlay: rgba(0, 0, 0, 0.75);
    --overlay-light: rgba(0, 0, 0, 0.5);
    
    /* Glassmorphism */
    --glass-bg: rgba(26, 26, 26, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
}

/* ===== STYLES GÉNÉRAUX ===== */
body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color var(--transition-normal), 
                color var(--transition-normal);
}

/* ===== HEADER & NAVIGATION ===== */
.header,
.navbar,
.navbar-main,
.navbar-top,
.navbar-wrapper {
    background-color: var(--bg-secondary) !important;
    border-bottom: 1px solid var(--border-secondary);
    transition: background-color var(--transition-normal),
                border-color var(--transition-normal);
}

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

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

.navbar-nav .nav-link.active {
    color: var(--accent-primary) !important;
    font-weight: 600;
}

/* Logo adaptation */
.navbar-brand img,
.logo img {
    transition: filter var(--transition-normal);
}

[data-theme="dark"] .navbar-brand img:not(.no-filter),
[data-theme="dark"] .logo img:not(.no-filter) {
    filter: brightness(1.1);
}

/* ===== CARDS & CONTENEURS ===== */
.card,
.card-body,
.widget,
.panel,
.box,
.container-box {
    background-color: var(--bg-elevated);
    color: var(--text-primary);
    border-color: var(--border-primary);
    transition: background-color var(--transition-normal),
                color var(--transition-normal),
                border-color var(--transition-normal),
                box-shadow var(--transition-normal);
}

.card:hover,
.widget:hover {
    box-shadow: var(--shadow-md);
}

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

/* Cards avec images */
.card-img-top,
.card img {
    transition: filter var(--transition-normal);
}

[data-theme="dark"] .card-img-top:not(.no-filter),
[data-theme="dark"] .card img:not(.no-filter) {
    filter: brightness(0.9) contrast(1.1);
}

/* ===== BACKGROUNDS ===== */
.bg-white {
    background-color: var(--bg-primary) !important;
}

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

.bg-dark {
    background-color: var(--bg-tertiary) !important;
}

.bg-gray,
.bg-grey {
    background-color: var(--bg-secondary) !important;
}

/* ===== FORMULAIRES ===== */
.form-control,
.form-select,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="tel"],
input[type="url"],
input[type="search"],
input[type="date"],
input[type="time"],
input[type="datetime-local"],
textarea,
select {
    background-color: var(--bg-elevated);
    color: var(--text-primary);
    border-color: var(--border-primary);
    transition: background-color var(--transition-fast),
                color var(--transition-fast),
                border-color var(--transition-fast),
                box-shadow var(--transition-fast);
}

.form-control:focus,
.form-select:focus,
input:focus,
textarea:focus,
select:focus {
    background-color: var(--bg-elevated);
    color: var(--text-primary);
    border-color: var(--border-focus);
    box-shadow: 0 0 0 0.2rem rgba(94, 129, 255, 0.25);
}

.form-control::placeholder,
input::placeholder,
textarea::placeholder {
    color: var(--text-muted);
    opacity: 1;
}

.form-control:disabled,
input:disabled,
textarea:disabled,
select:disabled {
    background-color: var(--bg-secondary);
    color: var(--text-disabled);
    cursor: not-allowed;
}

.form-label,
label {
    color: var(--text-primary);
    font-weight: 500;
}

.form-text,
.help-text,
small.text-muted {
    color: var(--text-muted) !important;
}

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

/* File upload */
.form-control-file,
input[type="file"] {
    color: var(--text-primary);
}

input[type="file"]::file-selector-button {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-primary);
    padding: 0.375rem 0.75rem;
    border-radius: 0.25rem;
    transition: background-color var(--transition-fast);
}

input[type="file"]::file-selector-button:hover {
    background-color: var(--bg-tertiary);
}

/* Checkboxes & Radios */
.form-check-input {
    background-color: var(--bg-elevated);
    border-color: var(--border-primary);
}

.form-check-input:checked {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
}

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

/* Switch */
.form-switch .form-check-input {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='rgba(255,255,255,0.8)'/%3e%3c/svg%3e");
}

[data-theme="dark"] .form-switch .form-check-input {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='rgba(245,245,245,0.9)'/%3e%3c/svg%3e");
}

/* ===== BOUTONS ===== */
.btn {
    transition: background-color var(--transition-fast),
                color var(--transition-fast),
                border-color var(--transition-fast),
                box-shadow var(--transition-fast);
}

.btn-primary {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #ffffff;
}

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

.btn-secondary {
    background-color: var(--accent-secondary);
    border-color: var(--accent-secondary);
    color: #ffffff;
}

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

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

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

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

/* Outline buttons */
.btn-outline-primary {
    color: var(--accent-primary);
    border-color: var(--accent-primary);
}

.btn-outline-primary:hover {
    background-color: var(--accent-primary);
    color: #ffffff;
}

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

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

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

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

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

.table th,
.table thead th {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--border-primary);
    font-weight: 600;
}

.table td,
.table tbody td {
    color: var(--text-primary);
    border-color: var(--border-secondary);
}

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

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

.table-bordered {
    border-color: var(--border-primary);
}

/* Table responsive wrapper */
.table-responsive {
    border-color: var(--border-primary);
}

/* ===== MODALES ===== */
.modal-content {
    background-color: var(--bg-elevated);
    color: var(--text-primary);
    border-color: var(--border-primary);
}

.modal-header {
    background-color: var(--bg-secondary);
    border-bottom-color: var(--border-primary);
    color: var(--text-primary);
}

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

.modal-body {
    color: var(--text-primary);
}

.modal-footer {
    background-color: var(--bg-secondary);
    border-top-color: var(--border-primary);
}

.modal-backdrop {
    background-color: rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .modal-backdrop {
    background-color: rgba(0, 0, 0, 0.8);
}

/* Close button */
.btn-close {
    filter: invert(0);
}

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

/* ===== ALERTES ===== */
.alert {
    border-color: var(--border-primary);
}

.alert-primary {
    background-color: rgba(94, 129, 255, 0.1);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.alert-success {
    background-color: rgba(76, 175, 80, 0.1);
    border-color: var(--accent-success);
    color: var(--accent-success);
}

.alert-warning {
    background-color: rgba(255, 152, 0, 0.1);
    border-color: var(--accent-warning);
    color: var(--accent-warning);
}

.alert-danger {
    background-color: rgba(239, 83, 80, 0.1);
    border-color: var(--accent-danger);
    color: var(--accent-danger);
}

.alert-info {
    background-color: rgba(41, 182, 246, 0.1);
    border-color: var(--accent-info);
    color: var(--accent-info);
}

[data-theme="dark"] .alert-primary {
    background-color: rgba(94, 129, 255, 0.15);
}

[data-theme="dark"] .alert-success {
    background-color: rgba(76, 175, 80, 0.15);
}

[data-theme="dark"] .alert-warning {
    background-color: rgba(255, 152, 0, 0.15);
}

[data-theme="dark"] .alert-danger {
    background-color: rgba(239, 83, 80, 0.15);
}

[data-theme="dark"] .alert-info {
    background-color: rgba(41, 182, 246, 0.15);
}

/* ===== SIDEBARS & NAVIGATION ===== */
.sidebar,
.admin-sidebar,
.side-nav,
.sidenav,
.navigation-sidebar {
    background-color: var(--bg-elevated);
    color: var(--text-primary);
    border-color: var(--border-primary);
}

.sidebar .nav-link,
.admin-sidebar .nav-link,
.side-nav .nav-link {
    color: var(--text-secondary);
    transition: color var(--transition-fast),
                background-color var(--transition-fast);
}

.sidebar .nav-link:hover,
.admin-sidebar .nav-link:hover,
.side-nav .nav-link:hover {
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
}

.sidebar .nav-link.active,
.admin-sidebar .nav-link.active,
.side-nav .nav-link.active {
    color: var(--accent-primary);
    background-color: rgba(94, 129, 255, 0.1);
    font-weight: 600;
}

.sidebar-header,
.sidebar-title {
    color: var(--text-primary);
    border-bottom-color: var(--border-primary);
}

/* ===== DROPDOWN MENUS ===== */
.dropdown-menu {
    background-color: var(--bg-elevated);
    border-color: var(--border-primary);
    box-shadow: var(--shadow-lg);
}

.dropdown-item {
    color: var(--text-primary);
    transition: background-color var(--transition-fast),
                color var(--transition-fast);
}

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

.dropdown-item.active,
.dropdown-item:active {
    background-color: var(--accent-primary);
    color: #ffffff;
}

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

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

/* ===== BREADCRUMBS ===== */
.breadcrumb {
    background-color: var(--bg-secondary);
    border-color: var(--border-primary);
}

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

.breadcrumb-item a {
    color: var(--accent-primary);
    text-decoration: none;
}

.breadcrumb-item a:hover {
    color: var(--accent-primary-hover);
}

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

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

/* ===== PAGINATION ===== */
.page-link {
    color: var(--text-primary);
    background-color: var(--bg-elevated);
    border-color: var(--border-primary);
    transition: background-color var(--transition-fast),
                color var(--transition-fast);
}

.page-link:hover {
    color: var(--accent-primary);
    background-color: var(--bg-tertiary);
    border-color: var(--border-primary);
}

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

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

/* ===== BADGES & PILLS ===== */
.badge {
    transition: background-color var(--transition-fast);
}

.badge.bg-primary {
    background-color: var(--accent-primary) !important;
}

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

.badge.bg-success {
    background-color: var(--accent-success) !important;
}

.badge.bg-warning {
    background-color: var(--accent-warning) !important;
    color: #000 !important;
}

.badge.bg-danger {
    background-color: var(--accent-danger) !important;
}

.badge.bg-info {
    background-color: var(--accent-info) !important;
}

[data-theme="dark"] .badge.bg-warning {
    color: #000 !important;
}

/* ===== PROGRESS BARS ===== */
.progress {
    background-color: var(--bg-secondary);
    border-radius: 0.25rem;
}

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

.progress-bar.bg-success {
    background-color: var(--accent-success) !important;
}

.progress-bar.bg-warning {
    background-color: var(--accent-warning) !important;
}

.progress-bar.bg-danger {
    background-color: var(--accent-danger) !important;
}

/* ===== TABS & PILLS ===== */
.nav-tabs {
    border-bottom-color: var(--border-primary);
}

.nav-tabs .nav-link {
    color: var(--text-secondary);
    background-color: transparent;
    border-color: transparent;
}

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

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

.nav-pills .nav-link {
    color: var(--text-secondary);
}

.nav-pills .nav-link:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.nav-pills .nav-link.active {
    background-color: var(--accent-primary);
    color: #ffffff;
}

.tab-content {
    background-color: var(--bg-elevated);
    border-color: var(--border-primary);
    color: var(--text-primary);
}

/* ===== ACCORDIONS ===== */
.accordion {
    --bs-accordion-bg: var(--bg-elevated);
    --bs-accordion-border-color: var(--border-primary);
    --bs-accordion-color: var(--text-primary);
}

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

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

.accordion-button::after {
    filter: invert(0);
}

[data-theme="dark"] .accordion-button::after {
    filter: invert(1);
}

.accordion-body {
    background-color: var(--bg-elevated);
    color: var(--text-primary);
}

/* ===== LISTS ===== */
.list-group {
    border-color: var(--border-primary);
}

.list-group-item {
    background-color: var(--bg-elevated);
    color: var(--text-primary);
    border-color: var(--border-primary);
}

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

.list-group-item.active {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #ffffff;
}

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

/* ===== POPOVERS & TOOLTIPS ===== */
.popover {
    background-color: var(--bg-elevated);
    border-color: var(--border-primary);
    box-shadow: var(--shadow-lg);
}

.popover-header {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-bottom-color: var(--border-primary);
}

.popover-body {
    color: var(--text-primary);
}

.tooltip-inner {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.bs-tooltip-top .tooltip-arrow::before,
.bs-tooltip-auto[data-popper-placement^="top"] .tooltip-arrow::before {
    border-top-color: var(--bg-tertiary);
}

.bs-tooltip-end .tooltip-arrow::before,
.bs-tooltip-auto[data-popper-placement^="right"] .tooltip-arrow::before {
    border-right-color: var(--bg-tertiary);
}

.bs-tooltip-bottom .tooltip-arrow::before,
.bs-tooltip-auto[data-popper-placement^="bottom"] .tooltip-arrow::before {
    border-bottom-color: var(--bg-tertiary);
}

.bs-tooltip-start .tooltip-arrow::before,
.bs-tooltip-auto[data-popper-placement^="left"] .tooltip-arrow::before {
    border-left-color: var(--bg-tertiary);
}

/* ===== SPINNERS & LOADERS ===== */
.spinner-border,
.spinner-grow {
    color: var(--accent-primary);
}

.spinner-border.text-primary,
.spinner-grow.text-primary {
    color: var(--accent-primary) !important;
}

/* ===== IMAGES & MEDIA ===== */
img:not(.no-filter):not([src*="logo"]):not([src*="avatar"]) {
    transition: filter var(--transition-normal);
}

[data-theme="dark"] img:not(.no-filter):not([src*="logo"]):not([src*="avatar"]) {
    filter: brightness(0.9) contrast(1.05);
}

/* Avatars et photos de profil */
.avatar,
.profile-picture,
.user-avatar,
img[alt*="avatar"],
img[alt*="profile"] {
    border: 2px solid var(--border-primary);
    transition: border-color var(--transition-normal);
}

[data-theme="dark"] .avatar,
[data-theme="dark"] .profile-picture,
[data-theme="dark"] .user-avatar {
    filter: brightness(0.95);
}

/* Vidéos et iframes */
video,
iframe {
    border-color: var(--border-primary);
}

[data-theme="dark"] video,
[data-theme="dark"] iframe {
    border: 1px solid var(--border-primary);
    border-radius: 0.25rem;
}

/* ===== ICÔNES ===== */
.icon,
i.fa,
i.fas,
i.far,
i.fab,
i.fal {
    transition: color var(--transition-fast);
}

/* Icons dans les boutons */
.btn i {
    color: inherit;
}

/* ===== FOOTER ===== */
.footer,
footer,
.site-footer {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-top: 1px solid var(--border-primary);
}

.footer a,
footer a {
    color: var(--accent-primary);
    text-decoration: none;
}

.footer a:hover,
footer a:hover {
    color: var(--accent-primary-hover);
}

/* ===== TEXTS & TYPOGRAPHY ===== */
.text-muted {
    color: var(--text-muted) !important;
}

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

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

h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
}

a {
    color: var(--accent-primary);
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-primary-hover);
}

hr {
    border-color: var(--border-primary);
    opacity: 1;
}

code {
    background-color: var(--bg-secondary);
    color: var(--accent-danger);
    border: 1px solid var(--border-primary);
    padding: 0.125rem 0.25rem;
    border-radius: 0.25rem;
}

pre {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-primary);
    border-radius: 0.25rem;
}

blockquote {
    border-left-color: var(--accent-primary);
    color: var(--text-secondary);
}

/* ===== BOUTON TOGGLE DARK MODE ===== */
.dark-mode-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    background: linear-gradient(135deg, #5e81ff 0%, #7d5ba6 100%);
    border: none;
    border-radius: 50px;
    padding: 12px 16px;
    color: white;
    font-size: 18px;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 60px;
    justify-content: center;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.dark-mode-toggle:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.dark-mode-toggle:active {
    transform: translateY(0);
}

.dark-mode-toggle .toggle-text {
    font-size: 12px;
    font-weight: 600;
    display: none;
    white-space: nowrap;
}

.dark-mode-toggle:hover .toggle-text {
    display: inline;
}

.dark-mode-toggle .icon {
    transition: transform var(--transition-normal);
    font-size: 20px;
}

.dark-mode-toggle:hover .icon {
    transform: rotate(360deg);
}

/* ===== GLASSMORPHISM EFFECTS ===== */
.glassmorphism,
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-md);
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-primary);
    border-radius: 6px;
}

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

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--border-primary) var(--bg-secondary);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .dark-mode-toggle {
        top: 10px;
        right: 10px;
        padding: 10px 12px;
        font-size: 16px;
        min-width: 50px;
    }
    
    .dark-mode-toggle .toggle-text {
        display: none !important;
    }
    
    .dark-mode-toggle .icon {
        font-size: 18px;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes theme-fade {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.98; }
}

[data-theme-transitioning] {
    animation: theme-fade 0.3s ease;
}

/* ===== PRINT STYLES ===== */
@media print {
    [data-theme="dark"] {
        --bg-primary: #ffffff;
        --text-primary: #000000;
    }
}

/* ===== COMPATIBILITÉ IE11 ===== */
@media all and (-ms-high-contrast: none), (-ms-high-contrast: active) {
    /* Fallbacks pour IE11 */
    body {
        background-color: #ffffff;
        color: #212529;
    }
    
    [data-theme="dark"] body {
        background-color: #0f0f0f;
        color: #f5f5f5;
    }
}