/* CSS Reset */
body, header, nav, main, footer, h1, div, img, ul {
    margin: 0;
    padding: 0;
    border: 0;
}

/* Style rules for body and images */
body {
    background-color: #000;
}

img {
    max-width: 100%;
    display: block;
}

/* Style rules for headings */

/* Style rules for header */
header {
    position: -webkit-sticky;
    position: sticky;
    top: 0;
    background-color: #000;
    height: 190px;
}

header img {
    margin: 0 auto;
}

/* Style rules for navigation area */
nav {
    padding: 1%;
    margin-bottom: 1%;
}

nav ul {
    list-style-type: none;
    text-align: center;
}

nav li {
    font-size: 1.5em;
    font-family: 'Francois One', sans-serif;
    border-top: 1px solid #fff;
}

nav li:first-child {
    border-top: none;
}

nav li a {
    display: block;
    color: #fff;
    padding: 0.5em 1em;
    text-decoration: none;
}

/* Show mobile class, hide tablet-desktop class*/
.mobile {
    display: block;
}

.tablet-desktop {
    display: none;
}

/* Style rules for main content */
main {
    background-color: #fff;
    padding: 2%;
    font-size: 1.15em;
    font-family: 'Roboto Slab', serif;
}

.tel-link {
    background-color: #404040;
    padding: 2%;
    margin: 0 auto;
    width: 80%;
    text-align: center;
    border-radius: 5px;
}

.tel-link a {
    color: #fff;
    text-decoration: none;
    font-size: 1.5em;
    display: block;
}

.hours {
    margin-left: 10%;
}

.action {
    font-size: 1.35em;
    color: #666600;
    font-weight: bold;
}

#weights #cardio #training {
    margin: 0 2%;
}

.round {
    border-radius: 8px;
}

.external-link {
    color: #666600;
    font-weight: bold;
    text-decoration: none;
}

#contact {
    text-align: center;
}

#contact .contact-email-link {
    color: #666600;
    text-decoration: none;
}

.map {
    border: 2px solid #000;
    width: 95%;
    height: 50%;
}

/* Style rules for footer content */
footer p {
    font-size: 0.75em;
    text-align: center;
    color: #fff;
    padding: 0 1em;
}

footer p a {
    color: #fff;
    text-decoration: none;
}

/* Media Query for Tablet Viewport */
@media screen and (min-width: 630px), print {

    /* Tablet Viewport: Show tablet-desktop class, hide mobile class */
    .tablet-desktop {
        display: block;
    }

    .mobile {
        display: none;
    }

    /* Tablet Viewport: Style rules for header */
    header {
        position: static;
        padding-bottom: 2%;
    }

    /* Tablet Viewport: Style rules for nav area */
    nav li {
        border-top: none;
        display: inline-block;
        border-right: 1px solid #fff;
    }

    nav li:last-child {
        border-right: none;
    }

    nav li a {
        padding: 0.1em 0.75em;
    }

    /* Tablet Viewport: Style rules for main content area */
    main ul {
        margin: 0 0 4% 10%;
    }

    #exercises {
    border-top: 1px solid #000;
    border-bottom: 1px solid #000;
    background: linear-gradient(to right, #ccc, #fff);
    background-color: #f2f2f2;
    padding: 1% 2%;
    }

    #exercises dt {
        font-weight: bold;
    }

    #exercises dd {
        padding: 0.5% 1% 2% 0;
    }

    .tel-num {
        font-size: 1.25em;
    }

    .map {
        width: 600px;
        height: 450px;
    }

}

/* Media Query for Desktop Viewport */
@media screen and (min-width: 1015px), print {

    /* Desktop Viewport: Style rule for header */
    header {
        width: 25%;
        float: left;    
        padding-bottom: 0;
    }

    /* Desktop Viewport: Style rules for nav area */
    nav {
        float: right;
        width: 70%;
        margin: 4em 1em 0 0;
    }

    nav ul {
        text-align: right;
    }

    nav li {
        border: none;
    }

    nav li a {
        padding: 0.5em 1em;
    }

    nav li a:hover {
        color: #000;
        background-color: #fff;
    }

    /* Desktop Viewport: Style rules for main content */
    main {
        clear: left;
    }

    main h1 {
        font-size: 1.8em;
    }

    #weights, #cardio, #training {
        width: 29%;
        float: left;
        margin: 0 2%;
    }

    #exercises {
        clear: left;
    }

}

/* Media Query for Large Desktop Viewports */
@media screen and (min-width: 1921px) {             

    #container {
        width: 1921px;
        margin: 0 auto;
    }

}

/* Media Query for print */
@media print {

    body {
        background-color: #fff;
        color: #000;
    }

}