.info-icon {
    display: inline-block;
    width: 20px;
    height: 20px;
    line-height: 20px;
    text-align: center;
    background-color: #007bff;
    color: white;
    border-radius: 50%;
    font-size: 14px;
    cursor: pointer;
    margin-left: 10px;
}

#result {
    margin-top: 20px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 8px;
    background-color: #f9f9f9;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.overlay-content {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    width: 80%;
    max-width: 800px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
}

.close-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 24px;
    font-weight: bold;
    color: #333;
    cursor: pointer;
}

.navbar-toggler {
    border: 3px solid #fff;
}

.navbar-toggler:hover {
    border-color: #ff0;
}

input:invalid {
    background-color: #f8d7da;
}

input:valid {
    background-color: #d4edda;
}

/* Additional styles for better table responsiveness */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

@media (max-width: 768px) {
    .overlay-content {
        width: 95%;
        padding: 15px;
    }
}