/* =============================================
   ESTILOS PARA CONVERSORES
   ============================================= */

/* Zona de arrastrar y soltar */
.drop-zone {
    border: 2px dashed var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    background-color: var(--color-surface);
}

.drop-zone:hover,
.drop-zone.drag-over {
    border-color: var(--color-primary);
    background-color: rgba(37, 99, 235, 0.05);
}

.drop-zone-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    color: var(--color-primary);
}

.drop-zone-text {
    font-size: 1.1rem;
    color: var(--color-text);
    margin-bottom: 16px;
}

.drop-zone-hint {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

/* Input oculto */
.file-input-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* Loader */
.loader {
    display: none;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.loader-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Mensajes */
.message {
    padding: 12px 16px;
    border-radius: var(--border-radius-md);
    font-size: 0.9rem;
}

.message--success {
    background-color: rgba(34, 197, 94, 0.1);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.message--error {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--color-error);
    border: 1px solid var(--color-error);
}

.message--info {
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.message-area {
    margin: 16px 0;
}

/* Contenedor de previews */
.preview-container {
    display: none;
    margin-top: 24px;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.preview-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 24px;
}

@media (max-width: 768px) {
    .preview-row {
        grid-template-columns: 1fr;
    }
}

.preview-box {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: 16px;
}

.preview-box h3 {
    font-size: 1rem;
    margin-bottom: 12px;
    color: var(--color-text);
}

.preview-image {
    max-width: 100%;
    max-height: 300px;
    display: none;
    margin: 0 auto;
    border-radius: var(--border-radius-md);
}

.preview-info {
    margin-top: 12px;
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.preview-info p {
    margin: 4px 0;
}

/* Items de preview para múltiples imágenes */
.preview-item {
    position: relative;
    background: var(--color-background);
    border-radius: var(--border-radius-md);
    overflow: hidden;
}

.preview-item img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

.preview-item-info {
    padding: 8px;
    font-size: 0.75rem;
}

.preview-item-name {
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--color-text);
}

.preview-item-size {
    color: var(--color-text-light);
}

.preview-item-remove {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    padding: 0;
    font-size: 16px;
    line-height: 1;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    border: none;
    cursor: pointer;
}

.preview-item-remove:hover {
    background: var(--color-error);
}

/* Controles */
.controls {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 24px 0;
    align-items: center;
}

.control-group {
    display: none;
    flex-direction: column;
    gap: 8px;
}

.control-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
}

/* Slider de calidad */
.quality-slider {
    width: 200px;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--color-border);
    border-radius: 3px;
    outline: none;
}

.quality-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
}

.quality-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
}

.quality-value {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
    min-width: 45px;
}

/* Barra de comparación de tamaño */
.size-comparison {
    display: none;
    margin: 24px 0;
}

.size-bar-container {
    position: relative;
}

.size-bar {
    height: 32px;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    padding: 0 12px;
    font-size: 0.8rem;
    color: white;
    margin-bottom: 8px;
}

.size-bar--original {
    background: var(--color-secondary);
}

.size-bar--compressed {
    background: var(--color-success);
    transition: width var(--transition-normal);
}

.savings-positive {
    color: var(--color-success);
}

.savings-negative {
    color: var(--color-error);
}

/* Botones de formato */
.format-buttons {
    display: none;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    margin: 24px 0;
}

.format-label {
    font-weight: 500;
    color: var(--color-text);
    margin-right: 8px;
}

.format-btn {
    min-width: 100px;
}

.format-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Selector de orientación */
.orientation-select {
    display: none;
    margin: 16px 0;
}

.orientation-select select {
    padding: 10px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    background: var(--color-surface);
    font-size: 1rem;
    color: var(--color-text);
}

/* Inputs de color */
.color-input {
    width: 50px;
    height: 36px;
    padding: 2px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
}

/* Área de texto para CSV/JSON/Base64 */
.text-area {
    width: 100%;
    min-height: 150px;
    padding: 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.875rem;
    resize: vertical;
    background: var(--color-surface);
    color: var(--color-text);
}

.text-area:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.text-area-container {
    margin: 16px 0;
}

.text-area-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.text-area-label {
    font-weight: 500;
    color: var(--color-text);
}

.char-count {
    font-size: 0.75rem;
    color: var(--color-text-light);
}

.char-count.over-limit {
    color: var(--color-error);
}

/* Vista previa de código */
.code-preview {
    display: none;
    background: #1e293b;
    color: #e2e8f0;
    padding: 16px;
    border-radius: var(--border-radius-md);
    overflow-x: auto;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.8rem;
    white-space: pre-wrap;
    max-height: 300px;
    overflow-y: auto;
}

/* Tabla de preview */
.preview-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
    margin-top: 16px;
}

.preview-table th,
.preview-table td {
    padding: 8px 12px;
    border: 1px solid var(--color-border);
    text-align: left;
}

.preview-table th {
    background: var(--color-background);
    font-weight: 600;
}

.preview-table .more-rows {
    text-align: center;
    color: var(--color-text-light);
    font-style: italic;
}

/* Contenedor QR */
.qr-container {
    display: none;
    text-align: center;
    margin: 24px 0;
    padding: 24px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
}

.qr-result {
    display: inline-block;
    padding: 16px;
    background: white;
    border-radius: var(--border-radius-md);
}

.qr-result canvas,
.qr-result img {
    display: block;
}

/* Opciones de QR */
.qr-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
    margin: 24px 0;
    padding: 16px;
    background: var(--color-background);
    border-radius: var(--border-radius-md);
}

.qr-option {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.qr-option label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
}

.qr-option select,
.qr-option input[type="color"] {
    padding: 8px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    background: var(--color-surface);
}

/* Base64 layout */
.base64-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

@media (max-width: 768px) {
    .base64-container {
        grid-template-columns: 1fr;
    }
}

.base64-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin: 24px 0;
}

/* Checkbox estilizado */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.9rem;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
}

/* Indicador de modo */
.mode-indicator {
    display: none;
    background: var(--color-primary);
    color: white;
    padding: 6px 12px;
    border-radius: var(--border-radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
}

/* Botón pequeño */
.btn--small {
    padding: 6px 12px;
    font-size: 0.75rem;
}

/* Texto de advertencia */
.warning-text {
    color: var(--color-accent);
    font-size: 0.875rem;
}

/* Conteo de archivos */
.file-count {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin: 12px 0;
}

/* Separador OR */
.or-separator {
    display: flex;
    align-items: center;
    margin: 20px 0;
}

.or-separator::before,
.or-separator::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-border);
}

.or-separator span {
    padding: 0 16px;
    color: var(--color-text-light);
    font-size: 0.875rem;
}

/* Espacio de privacidad */
.privacy-notice {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px;
    background: rgba(34, 197, 94, 0.1);
    border-radius: var(--border-radius-md);
    color: var(--color-success);
    font-size: 0.875rem;
    margin: 16px 0;
}

/* Botones principales de acción */
.action-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin: 24px 0;
}

.action-buttons .btn {
    display: inline-flex;
}

/* Responsive */
@media (max-width: 480px) {
    .controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .quality-slider {
        width: 100%;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .action-buttons .btn {
        width: 100%;
    }
}