body {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 20px;
    padding: 0 20px 30px 0;
    line-height: 1.4;
}

#welcome-page {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #1f1f1f; /* Dark background color */
    display: flex;
    justify-content: center;
    align-items: center;
    color: rgb(2, 135, 0); /* White text color */
    animation: fadeIn 4s ease forwards;
}
@keyframes fadeIn {
    from { opacity: 1; }
    to { opacity: 0; }
}
.flex-container{
    margin-top: 20px;
    display: flex;
    flex-wrap: nowrap;
    width: 100%;
    height: 500px;
    justify-content: center;
    transition: 2s all ease;
}

.flex-item{
    background: navy;
    border: 1pt solid black;
    width: 10px;
    transition: 0.1s all ease;
}

.row{
    display: grid;
    grid-template-columns: 1fr 1fr 2fr;
}

#input{
    display: flex;
    padding: 10px;
    justify-content: space-around;
}
.button-container {
    position: absolute;
    bottom: 20px;
    right: 20px;
}

.button-container button {
    margin-top: 10px;
    background-color: #4CAF50; /* Green */
    border: none;
    color: white;
    padding: 10px 24px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    transition-duration: 0.4s;
    cursor: pointer;
}

.button-container button:hover {
    background-color: #45a049;
}