/* ============================================================
   MiSitio Tools - Modo Oscuro (Dark Mode)
   Versión: 4.0 (Profesional y optimizada)
   Desarrollado por VIX Hosting - Perú
   
   Este archivo contiene todos los estilos específicos para
   el modo oscuro, utilizando las variables CSS definidas
   en styles.css para mantener la coherencia visual.
   ============================================================ */

/* ===== 1. VARIABLES DEL MODO OSCURO ===== */
body.dark-mode {
    /* Colores de fondo */
    --color-bg-primary: #0f172a;
    --color-bg-secondary: #1e293b;
    --color-bg-card: #1e293b;
    --color-bg-elevated: #334155;
    --color-bg-input: #1e293b;
    --color-bg-overlay: rgba(0, 0, 0, 0.85);

    /* Colores de texto */
    --color-text-primary: #f1f5f9;
    --color-text-secondary: #cbd5e1;
    --color-text-tertiary: #94a3b8;
    --color-text-inverse: #ffffff;
    --color-text-placeholder: #64748b;

    /* Colores de borde */
    --color-border-light: #334155;
    --color-border-medium: #475569;

    /* Colores de acento (se mantienen igual) */
    --color-accent: #6366f1;
    --color-accent-dark: #4f46e5;
    --color-accent-light: #818cf8;
    --color-accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);

    /* Estados (se mantienen igual) */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-info: #3b82f6;

    /* Sombras (más sutiles en modo oscuro) */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}

/* ===== 2. TRANSICIONES SUAVES ===== */
body.dark-mode,
body.dark-mode *,
body.dark-mode *::before,
body.dark-mode *::after {
    transition: background-color 0.3s ease,
                border-color 0.3s ease,
                color 0.3s ease,
                box-shadow 0.3s ease,
                opacity 0.3s ease,
                transform 0.3s ease;
}

/* Respetar preferencias del usuario para reducir movimiento */
@media (prefers-reduced-motion: reduce) {
    body.dark-mode,
    body.dark-mode *,
    body.dark-mode *::before,
    body.dark-mode *::after {
        transition-duration: 0.01ms !important;
    }
}

/* ===== 3. SELECCIÓN DE TEXTO ===== */
body.dark-mode ::selection {
    background: var(--color-accent);
    color: white;
}

body.dark-mode ::-moz-selection {
    background: var(--color-accent);
    color: white;
}

/* ===== 4. NAVBAR ===== */
body.dark-mode .navbar {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom-color: var(--color-border-light);
}

body.dark-mode .navbar.scrolled {
    background: rgba(15, 23, 42, 0.98);
}

body.dark-mode .nav-links a {
    color: var(--color-text-secondary);
}

body.dark-mode .nav-links a:hover,
body.dark-mode .nav-links a.active {
    color: var(--color-accent);
}

body.dark-mode .nav-links a::after {
    background: var(--color-accent-gradient);
}

body.dark-mode .logo .highlight {
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

body.dark-mode .logo i {
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ===== 5. HERO ===== */
body.dark-mode .hero {
    background: radial-gradient(circle at 0% 0%, rgba(99, 102, 241, 0.15) 0%, transparent 50%);
}

body.dark-mode .hero .badge {
    background: rgba(99, 102, 241, 0.2);
}

body.dark-mode .hero .badge-new {
    background: var(--color-accent);
    color: white;
}

body.dark-mode .hero h1 {
    color: var(--color-text-primary);
}

body.dark-mode .hero p {
    color: var(--color-text-secondary);
}

body.dark-mode .hero-stats .stat .number {
    color: var(--color-accent);
}

body.dark-mode .hero-stats .stat .label {
    color: var(--color-text-tertiary);
}

/* ===== 6. DROP ZONE ===== */
body.dark-mode .drop-zone {
    background: var(--color-bg-card);
    border-color: rgba(99, 102, 241, 0.3);
}

body.dark-mode .drop-zone:hover,
body.dark-mode .drop-zone.drag-over {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--color-accent);
}

body.dark-mode .drop-zone h3 {
    color: var(--color-text-primary);
}

body.dark-mode .drop-zone p {
    color: var(--color-text-secondary);
}

body.dark-mode .drop-note {
    color: var(--color-text-tertiary);
}

/* ===== 7. URL ZONE ===== */
body.dark-mode .url-zone {
    background: var(--color-bg-card);
    border-color: var(--color-border-light);
}

body.dark-mode .url-zone:hover {
    border-color: var(--color-accent-light);
}

body.dark-mode .url-zone h3 {
    color: var(--color-text-primary);
}

body.dark-mode .url-zone p {
    color: var(--color-text-secondary);
}

body.dark-mode .url-input {
    background: var(--color-bg-input);
    border-color: var(--color-border-light);
    color: var(--color-text-primary);
}

body.dark-mode .url-input:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

body.dark-mode .url-input::placeholder {
    color: var(--color-text-placeholder);
}

body.dark-mode .url-note {
    color: var(--color-text-tertiary);
}

body.dark-mode .example-btn {
    background: var(--color-bg-secondary);
    border-color: var(--color-border-light);
    color: var(--color-text-secondary);
}

body.dark-mode .example-btn:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
}

/* ===== 8. TABS ===== */
body.dark-mode .input-tabs {
    border-bottom-color: var(--color-border-light);
}

body.dark-mode .tab-btn {
    color: var(--color-text-secondary);
}

body.dark-mode .tab-btn:hover {
    color: var(--color-accent);
}

body.dark-mode .tab-btn.active {
    color: var(--color-accent);
}

body.dark-mode .tab-btn.active::after {
    background: var(--color-accent-gradient);
}

/* ===== 9. CARDS / PANELES ===== */
body.dark-mode .preview-card,
body.dark-mode .controls-card,
body.dark-mode .history-section,
body.dark-mode .batch-panel,
body.dark-mode .feature-card,
body.dark-mode .comparison-panel,
body.dark-mode .control-card,
body.dark-mode .stats-card,
body.dark-mode .editor-container,
body.dark-mode .canvas-area,
body.dark-mode .tools-sidebar,
body.dark-mode .compression-levels,
body.dark-mode .url-zone {
    background: var(--color-bg-card);
    border-color: var(--color-border-light);
}

body.dark-mode .preview-card:hover,
body.dark-mode .controls-card:hover,
body.dark-mode .feature-card:hover {
    box-shadow: var(--shadow-xl);
}

/* ===== 10. CARD HEADERS ===== */
body.dark-mode .card-header {
    border-bottom-color: var(--color-border-light);
}

body.dark-mode .card-header h3 {
    color: var(--color-text-primary);
}

body.dark-mode .card-header i {
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ===== 11. BOTONES ===== */
body.dark-mode .btn-primary,
body.dark-mode .btn-primary-small {
    background: var(--color-accent-gradient);
    color: white;
}

body.dark-mode .btn-primary:hover,
body.dark-mode .btn-primary-small:hover {
    box-shadow: var(--shadow-lg);
}

body.dark-mode .btn-primary:disabled,
body.dark-mode .btn-primary-small:disabled {
    opacity: 0.5;
}

body.dark-mode .btn-outline,
body.dark-mode .btn-outline-small {
    border-color: var(--color-border-light);
    color: var(--color-text-secondary);
}

body.dark-mode .btn-outline:hover,
body.dark-mode .btn-outline-small:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

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

body.dark-mode .btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

body.dark-mode .btn-icon {
    background: var(--color-bg-secondary);
    border-color: var(--color-border-light);
    color: var(--color-text-secondary);
}

body.dark-mode .btn-icon:hover {
    background: var(--color-accent);
    color: white;
    border-color: var(--color-accent);
}

body.dark-mode .btn-text {
    color: var(--color-text-tertiary);
}

body.dark-mode .btn-text:hover {
    color: var(--color-danger);
}

body.dark-mode .btn-convert {
    background: var(--color-accent-gradient);
    color: white;
}

body.dark-mode .btn-convert:hover {
    box-shadow: var(--shadow-lg);
}

body.dark-mode .btn-convert:disabled {
    opacity: 0.5;
}

/* ===== 12. CONTROLES (inputs, selects, etc.) ===== */
body.dark-mode .format-btn,
body.dark-mode .filter-btn,
body.dark-mode .preset-btn,
body.dark-mode .level-btn,
body.dark-mode .filter-preset,
body.dark-mode .crop-preset-btn,
body.dark-mode .rotate-btn,
body.dark-mode .draw-tool,
body.dark-mode .option-row select,
body.dark-mode .input-group input,
body.dark-mode .custom-input,
body.dark-mode .text-input {
    background: var(--color-bg-secondary);
    border-color: var(--color-border-light);
    color: var(--color-text-primary);
}

body.dark-mode .format-btn:hover:not(.active),
body.dark-mode .filter-btn:hover:not(.active),
body.dark-mode .preset-btn:hover,
body.dark-mode .level-btn:hover:not(.active),
body.dark-mode .filter-preset:hover:not(.active),
body.dark-mode .crop-preset-btn:hover:not(.active),
body.dark-mode .rotate-btn:hover,
body.dark-mode .draw-tool:hover:not(.active) {
    border-color: var(--color-accent);
    background: var(--color-bg-elevated);
}

body.dark-mode .format-btn.active,
body.dark-mode .filter-btn.active,
body.dark-mode .level-btn.active,
body.dark-mode .filter-preset.active,
body.dark-mode .crop-preset-btn.active,
body.dark-mode .draw-tool.active {
    background: var(--color-accent-gradient);
    color: white;
    border-color: transparent;
}

body.dark-mode .format-btn .format-badge {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

body.dark-mode .format-btn:disabled {
    opacity: 0.5;
}

body.dark-mode .badge-quality {
    background: var(--color-bg-secondary);
    color: var(--color-accent);
}

/* ===== 13. INPUTS ===== */
body.dark-mode input[type="text"],
body.dark-mode input[type="number"],
body.dark-mode input[type="url"],
body.dark-mode input[type="email"],
body.dark-mode input[type="password"],
body.dark-mode select,
body.dark-mode textarea {
    background: var(--color-bg-input);
    border-color: var(--color-border-light);
    color: var(--color-text-primary);
}

body.dark-mode input::placeholder,
body.dark-mode textarea::placeholder {
    color: var(--color-text-placeholder);
}

body.dark-mode input:focus,
body.dark-mode select:focus,
body.dark-mode textarea:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
    outline: none;
}

body.dark-mode input:disabled,
body.dark-mode select:disabled,
body.dark-mode textarea:disabled {
    opacity: 0.5;
}

/* ===== 14. SLIDERS (range) ===== */
body.dark-mode input[type="range"] {
    background: linear-gradient(90deg, var(--color-accent-light) 0%, var(--color-accent) 85%);
}

body.dark-mode input[type="range"]::-webkit-slider-thumb {
    background: var(--color-accent);
    border-color: var(--color-bg-card);
    box-shadow: var(--shadow-md);
}

body.dark-mode input[type="range"]::-moz-range-thumb {
    background: var(--color-accent);
    border-color: var(--color-bg-card);
}

body.dark-mode input[type="range"]:focus-visible::-webkit-slider-thumb {
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.4), var(--shadow-md);
}

/* ===== 15. TOGGLE SWITCH ===== */
body.dark-mode .slider.round {
    background-color: var(--color-border-medium);
}

body.dark-mode input:checked + .slider.round {
    background-color: var(--color-accent);
}

body.dark-mode .slider.round::before {
    background-color: white;
}

body.dark-mode .switch input:focus-visible + .slider.round {
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.4);
}

/* ===== 16. PANELES DE FONDO ===== */
body.dark-mode .size-preview,
body.dark-mode .resize-panel,
body.dark-mode .image-info,
body.dark-mode .batch-stats,
body.dark-mode .shortcuts-info,
body.dark-mode .comparison-stats,
body.dark-mode .stats-content,
body.dark-mode .adjust-controls,
body.dark-mode .draw-settings,
body.dark-mode .text-options,
body.dark-mode .draw-options,
body.dark-mode .crop-presets,
body.dark-mode .quality-tips,
body.dark-mode .slider-labels {
    background: var(--color-bg-elevated);
}

body.dark-mode .size-preview {
    color: var(--color-text-secondary);
}

body.dark-mode .size-compare {
    color: var(--color-success);
}

/* ===== 17. STATS ===== */
body.dark-mode .stat-item {
    border-bottom-color: var(--color-border-light);
}

body.dark-mode .stat-label {
    color: var(--color-text-secondary);
}

body.dark-mode .stat-value {
    color: var(--color-text-primary);
}

body.dark-mode .stat-item.highlight {
    background: var(--color-accent-gradient);
}

body.dark-mode .stat-item.highlight .stat-label,
body.dark-mode .stat-item.highlight .stat-value {
    color: white;
}

/* ===== 18. PROGRESS CIRCLE ===== */
body.dark-mode .progress-bg {
    stroke: var(--color-border-light);
}

body.dark-mode .progress-fill-circle {
    stroke: url(#accent-gradient);
}

body.dark-mode .progress-text-center {
    fill: var(--color-text-primary);
}

/* ===== 19. BATCH ITEMS ===== */
body.dark-mode .batch-item {
    background: var(--color-bg-secondary);
    border-color: var(--color-border-light);
}

body.dark-mode .batch-item.processing {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--color-accent);
}

body.dark-mode .batch-item.completed {
    background: rgba(16, 185, 129, 0.1);
    border-color: var(--color-success);
}

body.dark-mode .batch-item.error {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--color-danger);
}

body.dark-mode .batch-name {
    color: var(--color-text-primary);
}

body.dark-mode .batch-size {
    color: var(--color-text-tertiary);
}

body.dark-mode .batch-stats-number {
    color: var(--color-accent);
}

body.dark-mode .batch-stats-label {
    color: var(--color-text-tertiary);
}

body.dark-mode .batch-progress-bar {
    background: var(--color-accent-gradient);
}

/* ===== 20. HISTORY ===== */
body.dark-mode .history-item {
    background: var(--color-bg-secondary);
}

body.dark-mode .history-item:hover {
    background: var(--color-bg-elevated);
    box-shadow: var(--shadow-md);
}

body.dark-mode .history-item p {
    color: var(--color-text-primary);
}

body.dark-mode .history-item small {
    color: var(--color-text-tertiary);
}

body.dark-mode .history-delete {
    background: rgba(0, 0, 0, 0.6);
    color: white;
}

body.dark-mode .history-delete:hover {
    background: var(--color-danger);
}

body.dark-mode .history-delete:focus-visible {
    outline: 2px solid white;
}

/* ===== 21. FOOTER ===== */
body.dark-mode footer {
    background: var(--color-bg-card);
    border-top-color: var(--color-border-light);
}

body.dark-mode .footer-column h4 {
    color: var(--color-text-primary);
}

body.dark-mode .footer-column a {
    color: var(--color-text-tertiary);
}

body.dark-mode .footer-column a:hover {
    color: var(--color-accent);
}

body.dark-mode .footer-tagline {
    color: var(--color-text-tertiary);
}

body.dark-mode .footer-bottom {
    border-top-color: var(--color-border-light);
    color: var(--color-text-tertiary);
}

body.dark-mode .footer-bottom a {
    color: var(--color-accent);
}

body.dark-mode .footer-bottom i {
    color: var(--color-danger);
}

/* ===== 22. TECH BADGES ===== */
body.dark-mode .tech-badge {
    background: var(--color-bg-secondary);
    color: var(--color-text-secondary);
}

body.dark-mode .tech-badge:hover {
    background: var(--color-accent);
    color: white;
}

body.dark-mode .tech-badge:hover i {
    color: white;
}

/* ===== 23. SCROLLBAR ===== */
body.dark-mode ::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

body.dark-mode ::-webkit-scrollbar-thumb {
    background: var(--color-border-medium);
}

body.dark-mode ::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent);
}

/* ===== 24. TOAST ===== */
body.dark-mode #toastContainer .toast {
    background: var(--color-bg-elevated);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border-light);
}

body.dark-mode #toastContainer .toast.toast-success {
    background: var(--color-success);
    color: white;
    border-color: var(--color-success);
}

body.dark-mode #toastContainer .toast.toast-error {
    background: var(--color-danger);
    color: white;
    border-color: var(--color-danger);
}

body.dark-mode #toastContainer .toast.toast-warning {
    background: var(--color-warning);
    color: white;
    border-color: var(--color-warning);
}

body.dark-mode #toastContainer .toast.toast-info {
    background: var(--color-accent);
    color: white;
    border-color: var(--color-accent);
}

/* ===== 25. LOADING OVERLAY ===== */
body.dark-mode #loadingOverlay {
    background: rgba(0, 0, 0, 0.85);
}

body.dark-mode #loadingOverlay .loading-spinner {
    border-color: rgba(255, 255, 255, 0.3);
    border-top-color: var(--color-accent);
}

/* ===== 26. PROGRESS BAR ===== */
body.dark-mode .progress-bar {
    background: var(--color-border-light);
}

body.dark-mode .progress-fill {
    background: var(--color-accent-gradient);
}

body.dark-mode .progress-text {
    color: var(--color-text-tertiary);
}

/* ===== 27. CANVAS / EDITOR ===== */
body.dark-mode .canvas-wrapper {
    background: var(--color-bg-secondary);
}

body.dark-mode .editor-canvas {
    background: var(--color-bg-primary);
}

body.dark-mode .zoom-controls-editor {
    background: rgba(0, 0, 0, 0.85);
}

body.dark-mode .zoom-controls-editor button {
    color: white;
}

body.dark-mode .zoom-controls-editor button:hover {
    background: rgba(255, 255, 255, 0.2);
}

body.dark-mode .zoom-controls-editor button:focus-visible {
    outline: 2px solid white;
}

body.dark-mode .zoom-controls-editor span {
    color: white;
}

body.dark-mode .image-info-editor {
    background: rgba(0, 0, 0, 0.85);
    color: white;
}

/* ===== 28. TOOLS SIDEBAR (Editor) ===== */
body.dark-mode .tools-tabs {
    background: var(--color-bg-secondary);
    border-bottom-color: var(--color-border-light);
}

body.dark-mode .tool-tab {
    color: var(--color-text-secondary);
}

body.dark-mode .tool-tab.active {
    background: var(--color-bg-card);
    color: var(--color-accent);
}

body.dark-mode .tool-tab.active::after {
    background: var(--color-accent-gradient);
}

body.dark-mode .tool-tab:hover:not(.active) {
    color: var(--color-accent);
    background: rgba(99, 102, 241, 0.05);
}

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

body.dark-mode .panel-title {
    border-bottom-color: var(--color-border-light);
    color: var(--color-text-primary);
}

body.dark-mode .panel-title .btn-icon {
    background: var(--color-bg-secondary);
    border-color: var(--color-border-light);
    color: var(--color-text-secondary);
}

body.dark-mode .panel-title .btn-icon:hover {
    background: var(--color-accent);
    color: white;
    border-color: var(--color-accent);
}

/* ===== 29. LAYERS (Editor) ===== */
body.dark-mode .layer-item {
    background: var(--color-bg-secondary);
    border-color: transparent;
}

body.dark-mode .layer-item.active {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--color-accent);
}

body.dark-mode .layer-item:hover:not(.active) {
    background: rgba(99, 102, 241, 0.05);
}

body.dark-mode .layer-name {
    color: var(--color-text-primary);
}

body.dark-mode .layer-details {
    color: var(--color-text-tertiary);
}

body.dark-mode .layer-actions button {
    background: var(--color-bg-card);
    border-color: var(--color-border-light);
    color: var(--color-text-secondary);
}

body.dark-mode .layer-actions button:hover {
    background: var(--color-accent);
    color: white;
    border-color: var(--color-accent);
}

/* ===== 30. COMPARISON SLIDER (Compresor) ===== */
body.dark-mode .comparison-image {
    background: var(--color-bg-secondary);
}

body.dark-mode .comparison-labels {
    color: var(--color-text-tertiary);
}

body.dark-mode .slider-handle i {
    background: var(--color-accent);
    color: white;
}

body.dark-mode .saved-badge {
    background: var(--color-success);
    color: white;
}

/* ===== 31. FEATURES SECTION ===== */
body.dark-mode .features-header h2 {
    color: var(--color-text-primary);
}

body.dark-mode .features-header p {
    color: var(--color-text-secondary);
}

/* ===== 32. SHORTCUTS ===== */
body.dark-mode .shortcuts-content {
    color: var(--color-text-secondary);
}

body.dark-mode .shortcuts-content i {
    color: var(--color-accent);
}

body.dark-mode kbd {
    background: var(--color-bg-secondary);
    border-color: var(--color-border-light);
    color: var(--color-text-primary);
}

/* ===== 33. RESPONSIVE ===== */
@media (max-width: 768px) {
    body.dark-mode .navbar {
        background: rgba(15, 23, 42, 0.98);
    }

    body.dark-mode .tools-tabs {
        background: var(--color-bg-secondary);
    }

    body.dark-mode .tool-tab.active {
        background: var(--color-bg-card);
    }

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

    body.dark-mode .batch-header-actions .btn-outline-small {
        background: var(--color-bg-secondary);
        border-color: var(--color-border-light);
        color: var(--color-text-secondary);
    }

    body.dark-mode .batch-header-actions .btn-outline-small:hover {
        border-color: var(--color-accent);
        color: var(--color-accent);
    }
}

@media (max-width: 480px) {
    body.dark-mode .tab-btn span {
        display: none;
    }

    body.dark-mode .hero-stats .stat .number {
        color: var(--color-accent);
    }
}