/* Image Optimizer Plugin Styles */
.image-optimizer-widget {
    max-width: 900px;
    margin: 30px auto;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
}

.optimizer-container {
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.12);
    overflow: hidden;
    border: 1px solid #e1e5e9;
}

/* Upload Area */
.upload-area {
    padding: 60px 40px;
    text-align: center;
    border: 3px dashed #d1d9e6;
    border-radius: 12px;
    margin: 20px;
    transition: all 0.3s ease;
    background: #fafbfc;
    cursor: pointer;
}

.upload-area:hover {
    border-color: #3498db;
    background: #f0f7ff;
}

.upload-area.dragover {
    border-color: #3498db;
    background: #e8f4fc;
    transform: scale(1.02);
}

.upload-content .upload-icon {
    font-size: 64px;
    color: #bdc3c7;
    margin-bottom: 20px;
    transition: color 0.3s ease;
}

.upload-area:hover .upload-icon {
    color: #3498db;
}

.upload-title {
    font-size: 24px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 10px;
}

.upload-subtitle {
    font-size: 16px;
    color: #7f8c8d;
    margin-bottom: 25px;
}

.upload-btn {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.upload-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
}

.file-size-info {
    font-size: 14px;
    color: #95a5a6;
    margin-top: 15px;
}

/* Compression Controls */
.compression-controls {
    padding: 30px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.preview-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.image-preview {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    background: #f8f9fa;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-preview img {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
    border-radius: 8px;
}

.controls-section {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.control-group {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 12px;
    border: 1px solid #e1e5e9;
}

.control-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 20px;
}

.control-label i {
    color: #3498db;
}

.slider-container {
    margin-bottom: 15px;
}

.compression-slider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: #e1e5e9;
    outline: none;
    -webkit-appearance: none;
}

.compression-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #3498db;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(52, 152, 219, 0.3);
}

.compression-slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #3498db;
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 10px rgba(52, 152, 219, 0.3);
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: #7f8c8d;
    margin-top: 8px;
}

.quality-indicator {
    text-align: center;
    padding: 15px;
    background: white;
    border-radius: 8px;
    border: 2px solid #e1e5e9;
}

#qualityValue {
    font-size: 32px;
    font-weight: 700;
    color: #3498db;
    display: block;
    line-height: 1;
}

.quality-label {
    font-size: 14px;
    color: #7f8c8d;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.file-info {
    background: white;
    padding: 20px;
    border-radius: 12px;
    border: 1px solid #e1e5e9;
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #f1f2f6;
}

.info-item:last-child {
    border-bottom: none;
}

.info-label {
    font-weight: 600;
    color: #2c3e50;
}

.info-value {
    font-weight: 700;
    color: #27ae60;
}

#sizeReduction {
    color: #e74c3c;
}

.action-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-top: 10px;
}

.btn {
    padding: 15px 20px;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-optimize {
    background: linear-gradient(135deg, #27ae60, #219a52);
    color: white;
    grid-column: 1 / -1;
}

.btn-optimize:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(39, 174, 96, 0.4);
}

.btn-download {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: white;
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
}

.btn-reset {
    background: #95a5a6;
    color: white;
}

.btn-reset:hover {
    background: #7f8c8d;
    transform: translateY(-2px);
}

/* Loading State */
.loading-state {
    text-align: center;
    padding: 60px 40px;
}

.loading-spinner {
    font-size: 48px;
    color: #3498db;
    margin-bottom: 20px;
}

.loading-state p {
    font-size: 18px;
    color: #2c3e50;
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 768px) {
    .compression-controls {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .upload-area {
        padding: 40px 20px;
        margin: 15px;
    }
    
    .compression-controls {
        padding: 20px;
    }
    
    .action-buttons {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .image-optimizer-widget {
        margin: 15px;
    }
    
    .upload-title {
        font-size: 20px;
    }
    
    .control-group {
        padding: 20px 15px;
    }
    
    .btn {
        padding: 12px 15px;
        font-size: 14px;
    }
}

/* Animation for file info updates */
.info-value {
    transition: all 0.3s ease;
}

.info-value.updating {
    transform: scale(1.1);
    color: #e74c3c;
}