/* Image Resizer Frontend Styles v1.1 */
.irf-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.irf-title {
    text-align: center;
    color: #333;
    margin-bottom: 25px;
    font-size: 28px;
}

/* Upload Section */
.irf-upload-section {
    background: #fff;
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.irf-upload-area {
    border: 3px dashed #ddd;
    border-radius: 12px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    margin-bottom: 20px;
}

.irf-upload-area:hover {
    border-color: #667eea;
    background: linear-gradient(135deg, #f0f0ff 0%, #e8e8ff 100%);
}

.irf-upload-area.dragover {
    border-color: #667eea;
    background: linear-gradient(135deg, #e8e8ff 0%, #d8d8ff 100%);
    transform: scale(1.01);
}

.irf-upload-icon {
    font-size: 50px;
    margin-bottom: 12px;
}

.irf-upload-text {
    font-size: 17px;
    color: #333;
    margin: 0 0 6px 0;
}

.irf-upload-subtext {
    font-size: 14px;
    color: #666;
    margin: 0 0 6px 0;
}

.irf-upload-formats {
    font-size: 12px;
    color: #999;
    margin: 0;
}

.irf-upload-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.irf-upload-buttons input[type="file"] {
    display: none;
}

.irf-folder-note {
    text-align: center;
    font-size: 13px;
    color: #666;
    margin-top: 15px;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 6px;
}

/* Buttons */
.irf-btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.irf-btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.irf-btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

.irf-btn-primary:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

.irf-btn-folder {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: #fff;
}

.irf-btn-folder:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(245, 87, 108, 0.4);
}

.irf-btn-success {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    color: #fff;
}

.irf-btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(56, 239, 125, 0.4);
}

.irf-btn-download-each {
    background: linear-gradient(135deg, #fc4a1a 0%, #f7b733 100%);
    color: #fff;
}

.irf-btn-download-each:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(247, 183, 51, 0.4);
}

.irf-btn-large {
    padding: 14px 35px;
    font-size: 16px;
}

/* Image List */
.irf-image-list {
    display: none;
    background: #fff;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.irf-image-list.show {
    display: block;
}

.irf-image-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 12px;
    border-bottom: 1px solid #eee;
    flex-wrap: wrap;
    gap: 10px;
}

.irf-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.irf-header-right {
    display: flex;
    gap: 10px;
}

.irf-count {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
}

.irf-total-size {
    background: #e9ecef;
    color: #495057;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
}

.irf-select-all-btn {
    background: #fff;
    color: #667eea;
    border: 1px solid #667eea;
    padding: 6px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s;
}

.irf-select-all-btn:hover {
    background: #667eea;
    color: #fff;
}

.irf-clear-btn {
    background: #fff;
    color: #dc3545;
    border: 1px solid #dc3545;
    padding: 6px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s;
}

.irf-clear-btn:hover {
    background: #dc3545;
    color: #fff;
}

/* Folder Tree */
.irf-folder-tree {
    margin-bottom: 15px;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 8px;
    display: none;
}

.irf-folder-tree.show {
    display: block;
}

.irf-folder-tree-title {
    font-weight: 600;
    margin-bottom: 10px;
    color: #333;
    font-size: 14px;
}

.irf-folder-item {
    display: flex;
    align-items: center;
    padding: 6px 10px;
    margin: 3px 0;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s;
    font-size: 13px;
}

.irf-folder-item:hover {
    background: #e9ecef;
}

.irf-folder-item.active {
    background: #667eea;
    color: #fff;
}

.irf-folder-item .folder-icon {
    margin-right: 8px;
}

.irf-folder-item .folder-count {
    margin-left: auto;
    background: rgba(0,0,0,0.1);
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
}

.irf-folder-item.active .folder-count {
    background: rgba(255,255,255,0.2);
}

/* Image Grid */
.irf-image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
    max-height: 400px;
    overflow-y: auto;
    padding: 5px;
}

.irf-image-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    background: #f8f9fa;
    transition: transform 0.2s;
}

.irf-image-item:hover {
    transform: translateY(-2px);
}

.irf-image-item.selected {
    box-shadow: 0 0 0 3px #667eea;
}

.irf-image-item img {
    width: 100%;
    height: 100px;
    object-fit: cover;
    display: block;
}

.irf-image-item .irf-item-info {
    padding: 8px;
    font-size: 10px;
    color: #666;
    background: #fff;
}

.irf-image-item .irf-item-name {
    font-weight: 600;
    color: #333;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 2px;
    font-size: 11px;
}

.irf-image-item .irf-item-path {
    color: #999;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 9px;
    margin-bottom: 2px;
}

.irf-image-item .irf-item-checkbox {
    position: absolute;
    top: 8px;
    left: 8px;
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.irf-image-item .irf-remove-btn {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 22px;
    height: 22px;
    background: rgba(220,53,69,0.9);
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
    opacity: 0;
    transition: opacity 0.2s;
}

.irf-image-item:hover .irf-remove-btn {
    opacity: 1;
}

.irf-image-item .irf-status {
    position: absolute;
    top: 6px;
    right: 6px;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 9px;
    font-weight: bold;
}

.irf-status.pending { background: #ffc107; color: #333; }
.irf-status.processing { background: #17a2b8; color: #fff; }
.irf-status.done { background: #28a745; color: #fff; }
.irf-status.skipped { background: #6c757d; color: #fff; }

/* Settings */
.irf-settings {
    background: #fff;
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.irf-settings h3 {
    margin: 0 0 20px 0;
    color: #333;
    font-size: 18px;
    border-bottom: 2px solid #667eea;
    padding-bottom: 10px;
}

.irf-presets {
    margin-bottom: 20px;
}

.irf-preset-group {
    margin-bottom: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

.irf-preset-group:nth-child(2) {
    border-left-color: #11998e;
}

.irf-preset-group:nth-child(3) {
    border-left-color: #f5576c;
}

.irf-presets > label,
.irf-preset-group > label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: #444;
    font-size: 14px;
}

.irf-preset-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.irf-preset {
    padding: 8px 14px;
    border: 1px solid #ddd;
    border-radius: 6px;
    background: #fff;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s;
    color: #333;
}

.irf-preset:hover {
    transform: translateY(-1px);
}

/* Ảnh vuông - tím */
.irf-preset-group:nth-child(1) .irf-preset:hover,
.irf-preset-group:nth-child(1) .irf-preset.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border-color: #667eea;
}

/* Ảnh ngang - xanh lá */
.irf-preset-group:nth-child(2) .irf-preset:hover,
.irf-preset-group:nth-child(2) .irf-preset.active {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    color: #fff;
    border-color: #11998e;
}

/* Ảnh dọc - hồng */
.irf-preset-group:nth-child(3) .irf-preset:hover,
.irf-preset-group:nth-child(3) .irf-preset.active {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: #fff;
    border-color: #f5576c;
}

.irf-settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.irf-field label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: #444;
    font-size: 14px;
}

.irf-field input[type="number"],
.irf-field select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.2s;
}

.irf-field input[type="number"]:focus,
.irf-field select:focus {
    outline: none;
    border-color: #667eea;
}

.irf-field input[type="range"] {
    width: 100%;
    margin-top: 5px;
}

.irf-options {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 25px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
}

.irf-options label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 14px;
    color: #444;
}

.irf-options input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Actions */
.irf-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Progress */
.irf-progress {
    display: none;
    margin-top: 25px;
}

.irf-progress.show {
    display: block;
}

.irf-progress-bar {
    background: #e9ecef;
    border-radius: 10px;
    overflow: hidden;
    height: 28px;
}

.irf-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transition: width 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 13px;
    font-weight: bold;
    width: 0%;
}

.irf-progress-text {
    text-align: center;
    margin-top: 10px;
    color: #666;
    font-size: 14px;
}

/* Results */
.irf-results {
    display: none;
    background: #fff;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.irf-results.show {
    display: block;
}

.irf-results h3 {
    margin: 0 0 20px 0;
    color: #333;
    font-size: 18px;
    border-bottom: 2px solid #28a745;
    padding-bottom: 10px;
}

.irf-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 15px;
    margin-bottom: 25px;
}

.irf-summary-item {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 18px;
    border-radius: 10px;
    text-align: center;
}

.irf-summary-value {
    display: block;
    font-size: 26px;
    font-weight: bold;
    color: #667eea;
}

.irf-summary-label {
    display: block;
    font-size: 12px;
    color: #666;
    margin-top: 5px;
}

.irf-summary-success .irf-summary-value {
    color: #28a745;
}

.irf-results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    gap: 15px;
    max-height: 500px;
    overflow-y: auto;
}

.irf-result-item {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    background: #fff;
    transition: transform 0.2s;
}

.irf-result-item:hover {
    transform: translateY(-3px);
}

.irf-result-item img {
    width: 100%;
    height: 110px;
    object-fit: cover;
}

.irf-result-item .irf-result-info {
    padding: 12px;
    font-size: 11px;
}

.irf-result-item .irf-result-name {
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 4px;
    color: #333;
}

.irf-result-item .irf-result-path {
    color: #999;
    font-size: 9px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 4px;
}

.irf-result-item .irf-result-sizes {
    color: #666;
    margin-bottom: 3px;
}

.irf-result-item .irf-result-saved {
    color: #28a745;
    font-weight: bold;
}

.irf-result-item .irf-download-btn {
    display: block;
    text-align: center;
    padding: 10px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    text-decoration: none;
    font-size: 12px;
    font-weight: 500;
    transition: opacity 0.2s;
}

.irf-result-item .irf-download-btn:hover {
    opacity: 0.9;
}

/* Responsive */
@media (max-width: 600px) {
    .irf-container {
        padding: 15px;
    }
    
    .irf-upload-area {
        padding: 30px 15px;
    }
    
    .irf-upload-buttons {
        flex-direction: column;
    }
    
    .irf-upload-buttons .irf-btn {
        width: 100%;
        justify-content: center;
    }
    
    .irf-actions {
        flex-direction: column;
    }
    
    .irf-btn-large {
        width: 100%;
        justify-content: center;
    }
    
    .irf-options {
        flex-direction: column;
        gap: 12px;
    }
    
    .irf-image-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .irf-header-left, .irf-header-right {
        justify-content: center;
    }
}