body {
    font-family: Arial, sans-serif;
    color: #263238;
    margin: 40px;
}



header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #dddddd;
}

.brand {
    font-size: 22px;
    font-weight: 700;
    color: #263238;
    text-decoration: none;
}

nav {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}


nav a {
    color: #006d77;
    text-decoration: none;
    font-weight: 600;
}

nav a:hover {
    text-decoration: underline;
}


h1 {
    font-size: 36px;
}

@media (max-width: 600px) {

    body {
        margin: 16px;
    }

    header {
        flex-direction: column;
        align-items: flex-start;
    }

    .brand {
        font-size: 20px;
        overflow-wrap: anywhere;
    }

    nav {
        flex-direction: column;
        gap: 12px;
    }

    h1 {
        font-size: 30px;
        overflow-wrap: anywhere;
    }

}

.menu-toggle {
    display: none;
    padding: 10px 14px;
    font: inherit;
    background: white;
    border: 1px solid #dddddd;
    border-radius: 6px;
    cursor: pointer;
}

@media (max-width: 600px) {

    header {
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        align-items: center;
    }

    .brand {
        font-size: 18px;
    }

    .menu-toggle {
        display: block;
    }

    nav {
        display: none;
        grid-column: 1 / -1;
        flex-direction: column;
        gap: 12px;
    }

    nav.is-open {
        display: flex;
    }

}