header {
    width: 100%;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;

    padding: 40px 60px;
}

.header-trademark > a > h2 {
    font-weight: bold;

    text-transform: uppercase;
}

.header-trademark > a > img {
    width: 140px;
}

.header-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.account-box {
    display: flex;
    align-items: center;
    gap: 20px;
}

.account-box > a {
    border-radius: 5px;

    background: #f2f3f7;
    
    font-size: 16px;

    padding: 10px;

    cursor: pointer;
}

.header-links > .account-box {
    display: none;
}

.header-tools {
    display: flex;
    align-items: center;
    gap: 20px;
}

.search-box {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

#search-phrase {
    border: none;
    border-radius: 5px;

    background: #f2f3f7;
    
    font-size: 16px;

    padding: 10px;

    outline: none;
}

#search-btn {
    border: none;
    border-radius: 5px;

    color: #ffffff;
    background: #1c242d;

    display: flex;
    align-items: center;
    justify-content: center;

    padding: 10px;

    cursor: pointer;
}

@media only screen and (max-width: 900px) {
    header {
        padding: 40px 20px;
    }
}

@media only screen and (max-width: 700px) {
    header {
        flex-direction: column;
    }

    .header-links > .account-box {
        display: flex;
    }

    .header-tools {
        width: 100%;

        flex-direction: column;
    }
    
    .search-box {
        width: 100%;

        flex-direction: column;
    }

    #search-phrase {
        width: 100%;
    }
    
    #search-btn {
        width: 100%;
    }

    .header-tools > .account-box {
        display: none;
    }
}