.drop-zone {
    border: 2px dashed var(--drop-zone-border);
    background-color: var(--drop-zone-bg);
    border-radius: 8px;
    padding: 30px 20px;
    text-align: center;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.drop-zone:hover, .drop-zone.dragover {
    background-color: var(--drop-zone-hover);
    border-color: #007acc;
}

.drop-icon {
    width: 40px;
    height: 40px;
    fill: var(--sub-text-color);
}

.drop-text {
    font-size: 14px;
    color: var(--sub-text-color);
}

.progress-container {
    margin-top: 15px;
    display: none;
}

.progress-bar-bg {
    width: 100%;
    height: 10px;
    background: #333;
    border-radius: 5px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    width: 0%;
    background: #007acc;
    transition: width 0.2s;
}

.progress-text {
    font-size: 12px;
    color: var(--sub-text-color);
    margin-top: 5px;
    text-align: center;
}