/* the styles for the elements */
* {
    margin: 0;
    padding: 0;
}
:root {
    --gradient-header : linear-gradient(30deg, #f6bb73 0%, #f6bb73 30%, white 50%, #f6bb73 80%, #f6bb73 100%);
}
html {
    background-color: white;
}
body {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 100%;
    width: 99%;
    max-width: 960px;
    margin: 0 auto;
    border: 3px solid #931420;
    background-color: #fffded;
}
a:focus, a:hover {
    font-style: italic;
}
/* the styles for the header */
header {
    padding: 1.5em 0 2em 0;
    border-bottom: 3px solid #931420;
    background-image: var(--gradient-header);
}
header h2 {
    font-size: 175%;
    color: #800000;
}
header h3 {
    font-size: 130%;
    font-style: italic;
}
header img {
    float: left;
    padding: 0 3.75%;
}
.shadow {
    text-shadow: 2px 2px 2px #800000;
}
/* the styles for the navigation menu */
#nav_menu ul {
    display: flex;
    flex-basis: 100%;
    justify-content: space-evenly;
    list-style-type: none;
    margin: 0;
    padding: 0;
    position: relative;
}
#nav_menu ul li {
    align-content: center;
    flex-basis: 20%;                 /* 160 / 800 x 100 */
}
#nav_menu ul li a {
    display: block;
    text-align: center;
    padding: 1em 0;
    text-decoration: none;
    background-color: #800000;
    color: white;
    font-weight: bold;
}
#nav_menu a.current {
    color: yellow;
}
#nav_menu ul li ul {
    display: none;
    position: absolute;
    top: 100%;
    width: 20%;

}
#nav_menu ul ul li {
    align-content: center;
    justify-content: center;

}
#nav_menu ul li:hover > ul {
    display: flex;
    flex-direction: column;

}


/* the styles for the main content */
main {
    display: flex;
}

/* the styles for the section */
section {
    flex-basis: 70%;
    order : 2;
    padding: 0 2.5% 20px 2.5%;
}
section h1 {
    font-size: 150%;
    padding: .5em 0 .25em 0;
    margin: 0;
}
section h2 {
    color: #800000;
    font-size: 130%;
    padding: .5em 0 .25em 0;
}
section p {
    padding-bottom: .5em;
}
section blockquote {
    padding: 0 2em;
    font-style: italic;
}
section ul {
    padding: 0 0 .25em 1.25em;
    list-style-type: circle;
}
section li {
    padding-bottom: .35em;
}

/* the styles for the article */
article {
    padding: .5em 0;
    border-top: 2px solid #800000;
    border-bottom: 2px solid #800000;
}
article h2 {
    padding-top: 0;
}
article h3 {
    font-size: 105%;
    padding-bottom: .25em;
}
article img {
    float: right;
    max-width: 40%;
    min-width: 150px;
    margin: .5em 0 1em 1em;
    border: 1px solid black;
}

/* the styles for the aside */
aside {
    flex-basis: 30%;
    padding: 0 0 20px 2.5%;
    order : 1;
}
aside h2 {
    color: #800000;
    font-size: 130%;
    padding: .5em 0 .25em 0;
}

aside h3 {
    font-size: 105%;
    padding-bottom: .25em;
}
aside img {
    padding-bottom: 1em;
}

/* the styles for the footer */
footer {
    background-color: #931420;
    clear: both;

}
footer p {
    text-align: center;
    color: white;
    padding: 1em 0;
}
#mobile_menu {
    display: none;
}

@media only screen and (max-width: 734px) {
    section h1 {
        font-size: 125%
    }
    section h2, aside h2 {
        font-size: 110%;
    }
    aside h3 a {
        font-size: 85%;
    }
}

@media only screen and (max-width: 648px) {
    header img { float: none; }
    header { text-align: center; }
    main{
        display: flex;
        flex-direction: column;
        flex-basis: 100%;
    }
    section {
        order: 1;

    }
    aside {
        order : 2;
        padding-right: 2.5%;

    }
    article img { max-width: 30%; }
    #speakers {
        column-count: 2;
    }
    #nav_menu {
        display: none;
    }
    #mobile_menu {
        display: block;
    }
    .slicknav_menu {
        background-color: #800000 !important;
    }
}

@media only screen and (max-width: 414px) {
    body { font-size: 90%; }
}