My html page is cutting on mobile screen and scroll bar on x-axis automatically becomes active. What is the issue?

I am working on my porfolio. My project section html page is cutting on mobile screen and scroll bar on x-axis automatically becomes active. What is the issue?.

UI:
User Interface Link OR https://hamzailyas-portfolio-237.web.app/portfolio/projects.html

HTML code:
https://i.stack.imgur.com/639QQ.png

CSS code:

.project-container {
    float: left;
    width: 30%;
    text-align: center;
    border-radius: 6px;
    margin: 40px 22px;
}

#row {
    margin-top: -100px !important;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
}

.project-card {
    box-shadow: 0 4px 6px 0 rgba(0, 0, 0, 0.2);
    padding: 70px 20px !important;
    min-width: fit-content;
    text-align: center;
}

.project-card a {
    color: black;
    text-decoration: none;
}

.project-card:hover {
    background: crimson;
    color: white !important;
    transition: all 0.3s ease !important;
    transform: scale(1.05);
}

.project-card:hover a {
    color: white !important;
}

.project-card h1 {
    font-size: 35px;
    text-transform: capitalize;
    font-family: 'Ubuntu', sans-serif;
}

.project-card p {
    font-size: larger;
    margin-top: 30px;
    display: flex;
    justify-content: space-evenly;
}

.project-card p img {
    height: 30px;
    margin-top: -5px;
}

/* @media only screen and (min-width: 651px) and (max-width: 1100px) { 
    .project-container {
        margin-right: 100px;
    }        
} */

@media screen and (max-width: 1319px) {
    .project-card img {
        margin-right: 7px;
    }
}

@media screen and (max-width: 950px) {
    .project-container {
        width: 50%;
    }
}

@media screen and (max-width: 650px) {
    .project-container {
        width: 70%;
    }
}

@media screen and (max-width: 550px) {
    .project-container {
        width: 90%;
    }

    .project-card img {
        margin-right: 10px;
    }
}

@media screen and (max-width: 450px) {
    .project-card img {
        margin-right: 10px;
    }

    .project-card {
        padding: 60px 10px !important;
        font-size: smaller;
    }
}