.merge-tool-container {
    text-align: center;
    padding: 20px;
    border: 1px solid #ccc;
    max-width: 600px;
    margin: auto;
    font-family: Arial, sans-serif;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.merge-tool-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}
.merge-icon {
    width: 40px;
    height: 40px;
}
.merge-tool-container h2 {
    color: #d32f2f;
}
.file-inputs {
    margin: 20px 0;
}
.merge-btn {
    background-color: #d32f2f;
    color: #fff;
    border: none;
    padding: 12px 24px;
    cursor: pointer;
    font-size: 16px;
    border-radius: 4px;
}
.merge-btn:hover {
    background-color: #b71c1c;
}
#download-link {
    margin-top: 20px;
    display: inline-block;
    color: #d32f2f;
    font-weight: bold;
}