css

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    overflow-x: hidden;
}
.swiper-button-prev,
.swiper-button-next,
.swiper-wrapper,
.swiper-slide,
.swiper-pagination {
    overflow-x: initial
}
.nav-bar {
    position: fixed;
    width: 100vw;
    height: 60px;
    display: flex;
    justify-content: space-around;
    align-items: center;
    background-color: #999999;
    overflow-x: initial;
}
.logo {
    color: black;
    text-decoration: none;
}
.nav-items {
    width: 30vw;
    display: flex;
    justify-content: space-around;
    list-style: none;
}
.nav-item {
    color: black;
    text-decoration: none;
}
.burger {
    display: none;
    cursor: pointer;
}
.burger div {
    width: 32px;
    height: 5px;
    border-radius: 5px;
    background-color: white;
    margin: 4px;
}
.main {
    width: 100vw;
    padding-top: 60px;
    display: flex;
    flex-direction: column;
}
.home {
    min-height: calc(100vh - 60px);
    background-color: yellow;
}
.sobre {
    min-height: calc(100vh - 60px);
    background-color: red;
}
.swiper-container {
    width: 100vw;
    height: calc(100vh - 60px);
}

@media screen and (max-width: 500px) {
    .nav-bar {
        position: fixed;
        width: 100vw;
        height: 60px;
        display: flex;
        justify-content: space-around;
        align-items: center;
        background-color: #999999;
    }
    .nav-items {
        position: absolute;
        z-index: -1;
        height: calc(100vh - 60px);
        top: -100vh;
        width: 100vw;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: space-around;
        transition: transform 0.3s ease-in;
        background-color: #999999;
    }
    .burger {
        display: block;
    }
}
.nav-active {
    transform: translateY(calc(100vh + 60px));
}