header {
    position: relative;
    inset: 0 0 auto 0;
    z-index: 10;
    box-shadow: 0 0 5px #ccc;
    background-color: #fff;
}

.logo img {
    width: 25rem;
}

header .area {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem;
}

header nav {
    color: #000;
    overflow-y: hidden;
    max-height: 0;
    transition: all ease 0.5s;
}

header nav {
    max-height: 100vh;
}

header nav ul {
    display: flex;
    flex-direction: row;
    padding-bottom: 0;
}

header nav li {
    padding: 1rem 2rem;
}

header nav a {
    color: #000;
    text-decoration: none;
    font-size: 2rem;
}

header nav a:hover {
    opacity: 0.8;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

@media (max-width: 900px) {
    header .container {
        padding: 1rem;
    }

    header nav ul {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    header nav li {
        padding: 0.5rem 1rem;
    }
}