.main {
    width: 100%;
    background: url("/src/background.png") no-repeat center / cover;
    min-height: 100dvh;
    display: grid;
    place-items: center;
}
.inside-main {
    gap: 30px;
    text-align: center;
    flex-direction: column;
}
.btn-dive {
    box-shadow: inset 0 0 13px 12px #00fff0;
    background: #00a6f7;
    color: white;
    font-size: 2rem;
    position: relative;
    z-index: 1;
    overflow: hidden;
    font-weight: 900;
    transition: .2s;
    margin-bottom: 20px;
}
.btn-dive:hover {
    transform: scale(1.15);
}
@media (max-width: 430px) {
    .inside-main > h1 {
        font-size: 2rem !important;
    }
    .inside-main > p {
        font-size: 1rem !important;
    }
    .btn-dive {
        font-size: 1.5rem;
    }
}
@media (max-width: 920px) {
    .about-us > .content {
        flex-direction: column !important;
    }
    .about-us .block {
        padding: 40px 30px;
    }
    .about-us .upper {
        flex-direction: column !important;
    }
}
.extra-btn {
    border: #2b6a8d 1px solid;
    padding: 12px 40px;
}
.extra-btn:hover {
    background: #2b6a8d;
    color: white;
}
.geography .lower {
    background: #102844;
    flex-direction: column;
    padding: 20px 10px 30px;
    gap: 20px;
}
@media (max-width: 800px) {
    .flags > img {
        width: 80px;
    }
}