.splash_preview {
    width: 100%;
    height: 500px;
    position: relative;
    border: 4px solid black;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.dark .mode.light-img {
    display: none
}

.dark .mode.dark-img {
    display: block
}


@media (max-width: 991px) {
    .welcome-content {
        display: flex !important
    }
}

.custom-file-upload {
    display: inline-block;
    padding: 10px 20px;
    cursor: pointer;
    border: 2px solid #4CAF50;
    border-radius: 25px;
    /* Bo tròn */
    background-color: #fff;
    color: #4CAF50;
    font-weight: 500;
    transition: all 0.3s ease;
}

.custom-file-upload:hover {
    background-color: #4CAF50;
    color: #fff;
    border-color: #4CAF50;
}

.custom-file-upload input[type="file"] {
    display: none;
    /* Ẩn input gốc */
}