.main-area {
    display: none;
}

body {
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: whitesmoke;
}

.drop-zone {
    margin-top: 1rem;
    width: 300px;
    height: 200px;
    border: 2px dashed #007BFF;
    border-radius: 10px;
    background-color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    cursor: pointer;
    transition: background-color 0.3s;
    background-color: lightsteelblue;
}

.drop-zone.dragover {
    background-color: #e0f7fa;
}

#file-list {
    list-style: none;
    padding: 0;
    margin-top: 10px;
}

#file-list li {
    background: #fff;
    margin: 5px 0;
    padding: 8px;
    border-radius: 5px;
    box-shadow: 0px 1px 3px rgba(0, 0, 0, 0.1);
}

button {
    margin-top: 15px;
    padding: 8px 15px;
    border: none;
    background-color: #007BFF;
    color: white;
    font-size: 16px;
    cursor: pointer;
    border-radius: 5px;
}

button:disabled {
    background-color: gray;
    cursor: not-allowed;
}

.remove-btn {
    margin-left: 10px;
    background: none;
    border: none;
    font-size: 14px;
    color: red;
    cursor: pointer;
}

.message-box {
    display: none;
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    padding: 10px 15px;
    border-radius: 5px;
    font-size: 16px;
    color: white;
    background-color: gray;
    opacity: 0.9;
}

.error-loading-message {
    display: none;
    height: 100px;
    width: 300px;
    background-color: rgb(219, 120, 120);
    color: white;
    text-align: center;
    flex-direction: column;
    align-items: center;
    padding-bottom: 1rem;
}

.success-loading-message {
    display: none;
    height: 100px;
    width: 300px;
    background-color: rgb(75, 219, 171);
    color: white;
    text-align: center;
    flex-direction: column;
    align-items: center;
    padding-bottom: 1 rem;
}