body {
    font-family: sans-serif;
    padding: 2rem;
    text-align: center;
}
.drop-zone {
    border: 2px dashed #ccc;
    padding: 4rem 2rem;
    margin-bottom: 1rem;
    background: #f9f9f9;
    color: #666;
}
.controls {
    margin: 1rem 0;
}
label {
    margin-right: 1rem;
}
button {
    margin-top: 1rem;
    padding: 0.5rem 1rem;
    font-size: 1rem;
    cursor: pointer;
}
.tabs {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
}
.tab-button {
    border: none;
    background: #eee;
    padding: 0.5rem 1rem;
    cursor: pointer;
    margin: 0 0.5rem;
}
.tab-button.active {
    background: #ccc;
    font-weight: bold;
}
.tab-content {
    display: none;
    text-align: left;
    padding: 1rem;
    background: #f0f0f0;
    margin-top: 1rem;
    border-radius: 4px;
    overflow-x: auto;
}
.tab-content.active {
    display: block;
}