/* General Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    margin: 0;
    background-color: #90C7E3;
    color: #666666;
    font-family: Verdana, Arial, sans-serif;
}

#wrapper {
    background-color: #FFFFFF;
}

header {
    background-color: #002171;
    color: #FFFFFF;
    font-family: Georgia, serif;
    padding: 1em;
}

h1 {
    font-size: 1.5em;
}

nav {
    display: flex;
    flex-direction: column;
    text-align: center;
    background-color: #FFFFFF;
}

nav ul {
    margin: 0;
    padding-left: 0;
}

nav li {
    padding: 0.5em 1em;
    width: 100%;
    border-bottom: 1px solid #CCCCCC;
}

main {
    padding: 1em;
    padding-top: 0;
}

section {
    padding-left: 0.5em;
    padding-right: 0.5em;
}

footer {
    font-size: 0.70em;
    font-style: italic;
    text-align: center;
    padding: 1em;
}

form {
    display: flex;
    flex-direction: column;
    padding-left: 1em;
    width: 80%;
}

input, textarea {
    margin-bottom: 0.5em;
}

#reshero {
    height: 300px;
    background-image: url('ocean.jpg');
    background-size: 200% 100%;
    background-repeat: no-repeat;
}

@media (min-width: 600px) {
    h1 {
        font-size: 2em;
        letter-spacing: 0.25em;
    }

    nav {
        display: flex;
        flex-direction: row;
        justify-content: space-between;
        padding-right: 2em;
    }

    nav li {
        width: 12em;
        border-bottom: none;
        border-right: 1px solid #CCCCCC;
    }

    section {
        padding-left: 2em;
        padding-right: 2em;
    }

    form {
        width: 60%;
        display: grid;
        grid-template-columns: 10em 1fr;
        grid-gap: 1em;
    }

    input[type="submit"] {
        grid-column: 2;
        width: 9em;
    }

    #reshero {
        background-size: 100% 100%;
    }
}

@media (min-width: 1024px) {
    body {
        background-image: linear-gradient(to bottom, #FFFFFF 20%, #90C7E3 60%, #FFFFFF 100%);
    }

    main {
        padding-left: 10%;
        padding-right: 10%;
    }

    #wrapper {
        width: 80%;
        margin: 0 auto;
    }
}

table {
    width: 90%;
    margin: 0 auto;
    border: 1px solid #3399CC;
    border-collapse: collapse;
}

td, th {
    padding: 5px;
    border: 1px solid #3399CC;
    text-align: center;
}

td {
    text-align: center;
}

.text-left {
    text-align: left;
}

table tr:nth-child(even) {
    background-color: #DFEDF8;
}