.upc-modal {
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
}

.upc-modal-content {
    background: white;
    margin: 2% auto;
    width: 95%;
    max-width: 1000px;
    border-radius: 8px;
    max-height: 95vh;
    overflow-y: auto;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.upc-modal-header {
    padding: 25px 30px;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.upc-modal-header h2 {
    margin: 0;
    color: #333;
    font-size: 24px;
    flex: 1;
}

.upc-progress-indicator {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.upc-step-indicator {
    padding: 8px 12px;
    background: #f0f0f0;
    border-radius: 20px;
    font-size: 12px;
    color: #666;
    transition: all 0.3s;
}

.upc-step-indicator.active {
    background: #007cba;
    color: white;
    font-weight: bold;
}

.upc-close {
    font-size: 32px;
    font-weight: bold;
    cursor: pointer;
    color: #999;
    line-height: 1;
    transition: color 0.3s;
}

.upc-close:hover {
    color: #333;
}

.upc-modal-body {
    padding: 30px;
    min-height: 400px;
}

.upc-modal-footer {
    padding: 20px 30px;
    border-top: 1px solid #eee;
    background: #f8f9fa;
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

.upc-step {
    display: none;
}

.upc-step.active {
    display: block !important;
}

.upc-step h3 {
    color: #333;
    margin: 0 0 20px 0;
    font-size: 20px;
}

.upc-regions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
}

.upc-region-card {
    border: 2px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s;
}

.upc-region-card:hover {
    border-color: #007cba;
    box-shadow: 0 4px 12px rgba(0,124,186,0.2);
    transform: translateY(-2px);
}

.upc-region-card.selected {
    border-color: #007cba;
    background: #f0f7ff;
}

.upc-region-preview {
    width: 100%;
    height: 120px;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.upc-region-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.upc-no-image {
    color: #999;
    font-size: 12px;
}

.upc-region-card h4 {
    margin: 12px 12px 5px 12px;
    font-size: 14px;
    color: #333;
}

.upc-region-card p {
    margin: 0 12px 12px 12px;
    font-size: 12px;
    color: #999;
}

.upc-types-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 15px;
}

.upc-type-card {
    border: 2px solid #ddd;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
}

.upc-type-card:hover {
    border-color: #007cba;
    box-shadow: 0 4px 12px rgba(0,124,186,0.2);
    transform: translateY(-2px);
}

.upc-type-card.selected {
    border-color: #007cba;
    background: #f0f7ff;
}

.upc-type-icon {
    font-size: 32px;
    margin-bottom: 10px;
}

.upc-type-card h4 {
    margin: 0 0 10px 0;
    color: #333;
    font-size: 16px;
}

.upc-type-card p {
    margin: 0;
    color: #007cba;
    font-size: 14px;
}

.upc-canvas-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.upc-upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px;
    background: #f8f9fa;
    border: 2px dashed #ddd;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
}

.upc-upload-label:hover {
    color: #007cba;
    border-color: #007cba;
}

.upc-upload-icon {
    font-size: 32px;
}

.upc-upload-label span {
    font-weight: bold;
    color: #333;
}

.upc-upload-label p {
    margin: 0;
    font-size: 12px;
    color: #999;
}

#upc-preview-mask {
    width: 100%;
    max-width: 700px;
    margin: 0 auto;
    border: 2px solid #ddd;
    position: relative;
    background: white;
    overflow: auto;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

#upc-preview-canvas {
    display: block;
    cursor: grab;
    background: white;
    max-width: 100%;
    height: auto;
}

#upc-preview-canvas:active {
    cursor: grabbing;
}

.upc-canvas-controls {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
}

.upc-btn {
    padding: 10px 12px;
    background: white;
    border: 1px solid #ddd;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
    min-width: 40px;
}

.upc-btn:hover {
    background: #007cba;
    color: white;
    border-color: #007cba;
}

.upc-summary-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.upc-summary-preview h4 {
    margin: 0 0 15px 0;
    color: #333;
}

.upc-summary-image {
    width: 100%;
    height: 300px;
    background: #f5f5f5;
    border: 2px solid #ddd;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.upc-summary-image img,
.upc-summary-image canvas {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.upc-price-summary {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 8px;
    border: 1px solid #eee;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}

.summary-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.summary-item span:first-child {
    color: #666;
    font-weight: 500;
}

.summary-item span:last-child {
    color: #333;
    font-weight: 600;
}

.summary-item input {
    width: 80px;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    text-align: center;
    font-size: 14px;
}

.total-item {
    border-top: 2px solid #007cba !important;
    border-bottom: none !important;
    padding-top: 15px !important;
    font-size: 1.2em;
}

.total-item span:last-child {
    color: #007cba;
    font-size: 1.3em;
}

.button {
    padding: 10px 20px;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s;
}

.button-primary {
    background: #007cba;
    color: white;
}

.button-primary:hover {
    background: #005a87;
}

.button-secondary {
    background: #f0f0f0;
    color: #333;
}

.button-secondary:hover {
    background: #e0e0e0;
}

.button-success {
    background: #28a745;
    color: white;
}

.button-success:hover {
    background: #218838;
}

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

@media (max-width: 768px) {
    .upc-modal-content {
        width: 98%;
        margin: 1% auto;
    }

    .upc-modal-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .upc-modal-header, .upc-modal-body, .upc-modal-footer {
        padding: 15px 20px;
    }

    .upc-regions-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }

    .upc-types-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }

    #upc-preview-mask {
        max-width: 100%;
        min-height: 300px;
    }

    .upc-summary-container {
        grid-template-columns: 1fr;
    }

    .upc-modal-footer {
        flex-direction: column;
    }

    .button {
        width: 100%;
    }
}