* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    outline: none;
    list-style: none;
    /* : rgb(25, 155, 255); */
    --var-primary: rgb(85, 64, 124);
        --var-primary: linear-gradient(90deg, rgba(85, 64, 124, 1) 18%, rgba(0, 194, 255, 1) 100%);
    --var-font: rgb(255, 255, 255);
    --var-font-hover: rgb(14, 20, 86);
    /* font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
     */
     /* font-family: 'Courier New', Courier, monospace; */
        /* font-family: 'Times New Roman', Times, serif; */
        font-family: Arial, Helvetica, sans-serif;
}

/* header navbar */

header > nav > ul { 
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    /* background-color:rgb(42, 110, 165); */
    background: var(--var-primary);
    padding: 20px;
}

header > nav > ul > li > a {
    color: var(--var-font);
    text-decoration: none;
    font-size: 20px;
    font-weight: bold;
    padding: 10px;
    cursor: pointer;
    margin: 20px 10px;
    /* gap: 10px; */
}

header > nav > ul > li > a:hover{
    color: var(--var-font-hover);
    transition: .5s;
}

footer {
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--var-primary);
    padding: 10px;
    /* margin: 10px; */
    color: white;
    margin-top: 50px;

}

/* Make the page layout a column flexbox so the footer stays at the bottom
   when the content is short. This works without changing your HTML. */
html, body {
    height: 100%;
}
body {
    display: flex;
    flex-direction: column;
    min-height: 100vh; /* ensures viewport height is filled */
}

/* Make the main content area grow to take available space */
main {
    flex: 1 0 auto;
}


@media (max-width: 768px) {
    header > nav > ul {
        flex-direction: column;
        align-items: center;
    }
    header > nav > ul > li {
        margin: 5px;
    }
}