/**
 * FuZip - Thèmes (Dark Mode)
 * Option E du plan : Toggle dark/light mode
 */

/* ===== Thème sombre ===== */
[data-theme="dark"] {
    /* Couleurs principales (inchangées) */
    --color-primary: #3b82f6;
    --color-primary-hover: #60a5fa;
    --color-primary-light: #1e3a8a;

    --color-secondary: #94a3b8;
    --color-secondary-hover: #cbd5e1;

    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;

    /* Couleurs neutres (inversées pour dark) */
    --color-bg: #0f172a;
    --color-bg-secondary: #1e293b;
    --color-bg-tertiary: #334155;

    --color-text: #f1f5f9;
    --color-text-secondary: #cbd5e1;
    --color-text-muted: #94a3b8;

    --color-border: #334155;
    --color-border-hover: #475569;

    /* Ombres adaptées pour dark */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 10px 10px -5px rgba(0, 0, 0, 0.5);
}

/* ===== Ajustements spécifiques dark mode ===== */

/* Drop zone dark */
[data-theme="dark"] .drop-zone {
    background-color: var(--color-bg-secondary);
}

[data-theme="dark"] .drop-zone:hover,
[data-theme="dark"] .drop-zone.drag-over {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-primary);
}

/* Bouton browse dark */
[data-theme="dark"] .btn-browse {
    background-color: var(--color-bg-tertiary);
    color: var(--color-primary-hover);
    border-color: var(--color-primary);
}

[data-theme="dark"] .btn-browse:hover {
    background-color: var(--color-primary);
    color: white;
}

/* Input search dark */
[data-theme="dark"] .search-input {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-border);
    color: var(--color-text);
}

[data-theme="dark"] .search-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
}

/* Tree items dark */
[data-theme="dark"] .tree-item:hover {
    background-color: var(--color-bg-tertiary);
}

[data-theme="dark"] .tree-item.selected {
    background-color: rgba(59, 130, 246, 0.2);
}

[data-theme="dark"] .tree-item.search-match {
    background-color: rgba(245, 158, 11, 0.2);
}

/* Checkbox dark */
[data-theme="dark"] .tree-checkbox {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-border-hover);
}

[data-theme="dark"] .tree-checkbox:hover {
    border-color: var(--color-primary);
}

[data-theme="dark"] input[type="checkbox"]:checked + .tree-checkbox,
[data-theme="dark"] .tree-checkbox.checked {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

[data-theme="dark"] .tree-checkbox.indeterminate {
    background-color: rgba(59, 130, 246, 0.3);
    border-color: var(--color-primary);
}

/* Conflicts banner dark */
[data-theme="dark"] .conflicts-banner {
    background-color: rgba(245, 158, 11, 0.1);
    border-color: var(--color-warning);
    color: #fbbf24;
}

/* Modal dark */
[data-theme="dark"] .modal {
    background-color: rgba(0, 0, 0, 0.7);
}

[data-theme="dark"] .modal-content {
    background-color: var(--color-bg-secondary);
}

[data-theme="dark"] .preview-content {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text);
}

/* Loading overlay dark */
[data-theme="dark"] .loading-overlay {
    background-color: rgba(0, 0, 0, 0.7);
}

/* Messages d'erreur/succès dark */
[data-theme="dark"] .error-message {
    background-color: rgba(239, 68, 68, 0.2);
    border-color: var(--color-error);
    color: #fca5a5;
}

[data-theme="dark"] .success-message {
    background-color: rgba(16, 185, 129, 0.2);
    border-color: var(--color-success);
    color: #6ee7b7;
}

/* Upload panel states dark */
[data-theme="dark"] .upload-panel.success {
    border-color: var(--color-success);
    background-color: rgba(16, 185, 129, 0.1);
}

[data-theme="dark"] .upload-panel.error {
    border-color: var(--color-error);
    background-color: rgba(239, 68, 68, 0.1);
}

/* Progress bar dark */
[data-theme="dark"] .progress-bar {
    background-color: var(--color-bg-tertiary);
}

/* Scrollbar dark */
[data-theme="dark"] .tree-content::-webkit-scrollbar-track {
    background: var(--color-bg);
}

[data-theme="dark"] .tree-content::-webkit-scrollbar-thumb {
    background: var(--color-border-hover);
}

[data-theme="dark"] .tree-content::-webkit-scrollbar-thumb:hover {
    background: var(--color-border);
}

/* ===== Transition smooth entre thèmes ===== */
body,
.header,
.upload-panel,
.tree-panel,
.footer,
.drop-zone,
.btn-icon,
.search-input,
.tree-item,
.tree-checkbox,
.modal-content,
.preview-content {
    transition:
        background-color var(--transition-base),
        color var(--transition-base),
        border-color var(--transition-base);
}

/* ===== Preference système ===== */
/* Détecter automatiquement la préférence système */
@media (prefers-color-scheme: dark) {
    /* Par défaut, respecter la préférence système
       Mais l'utilisateur peut override avec le toggle */
    body:not([data-theme]) {
        /* Les variables dark seront appliquées via JavaScript si aucun thème n'est explicitement défini */
    }
}

/* ===== Accessibilité ===== */
/* Assurer un contraste suffisant en dark mode */
[data-theme="dark"] {
    /* Force le contraste minimum pour accessibilité */
    color-scheme: dark;
}

[data-theme="light"] {
    color-scheme: light;
}

/* ===== Print styles ===== */
/* Forcer le thème clair pour l'impression */
@media print {
    body[data-theme] {
        --color-bg: white;
        --color-text: black;
        --color-border: #e5e7eb;
    }
}