*{
    margin: 0;
    padding: 0;
    border: 0;
    box-sizing: border-box;
}
body {
    background: linear-gradient(180deg, #07111f 0%, #0d1b2a 45%, #132238 100%);
    color: #f4efe3;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 100%;
    line-height: 1.7;
}
.site-header,
.grid,
.site-footer {
    width: 80%;
    margin-left: auto;
    margin-right: auto;
}

.site-header {
    margin-top: 20px;
    margin-bottom: 20px;
    padding: 20px 24px;
    background-color: rgba(10, 18, 32, 0.92);
    border-left: 4px solid #c3a86b;
    border-right: 4px solid #c3a86b;
    border-bottom: 2px solid #c3a86b;
}

.logo h1 {
    color: #f9e7a8;
    font-size: 2.2em;
    font-weight: bold;
    margin-bottom: 14px;
    letter-spacing: 0.5px;
}

.astro-symbol {
    color: #c9d8ff;
}
.main-nav {
    border-top: 2px solid #c3a86b;
    border-bottom: 2px solid #c3a86b;
    padding-top: 10px;
    padding-bottom: 10px;
}

.main-nav ul {
    text-align: center;
}

.main-nav li {
    display: inline;
    list-style-type: none;
    margin: 0 14px;
}

.main-nav a:link,
.main-nav a:visited,
.main-nav a:active {
    color: #eadfc5;
    text-decoration: none;
    font-weight: bold;
}

.main-nav a:hover {
    color: #fff4c7;
    text-decoration: underline;
    font-weight: bold;
}

.main-nav a.current {
    color: #fff4c7;
    text-decoration: underline;
    font-weight: bold;
}

.grid {
    margin-top: 20px;
    margin-bottom: 20px;
    overflow: hidden;
}

#main-content {
    width: 68%;
    float: left;
    padding: 28px;
    background-color: rgba(15, 27, 47, 0.92);
    border-left: 4px solid #8ea7d1;
    border-right: 4px solid #8ea7d1;
    border-bottom: 2px solid #8ea7d1;
}

#secondary-content {
    width: 28%;
    float: right;
    padding: 28px 22px;
    background-color: rgba(19, 33, 56, 0.92);
    border-left: 4px solid #c3a86b;
    border-right: 4px solid #c3a86b;
    border-bottom: 2px solid #c3a86b;
}

.grid::after {
    content: "";
    display: block;
    clear: both;
}

.card h2 {
    font-size: 1.6em;
    color: #f8e7af;
    margin-bottom: 18px;
}

.card p {
    margin-bottom: 16px;
    color: #f4efe3;
}

.cosmic-blockquote {
    text-align: center;
    font-style: italic;
    font-size: 1.1em;
    color: #f6e8bf;
    line-height: 1.9;
}

.cosmic-blockquote p {
    margin-bottom: 0;
}

.site-footer {
    clear: both;
    margin-bottom: 24px;
    padding: 18px 22px;
    text-align: center;
    background-color: rgba(10, 18, 32, 0.92);
    border-top: 2px solid #c3a86b;
    border-bottom: 2px solid #c3a86b;
    color: #eadfc5;
}

.site-footer p:first-child {
    color: #f8e7af;
    font-weight: bold;
    margin-bottom: 8px;
    letter-spacing: 1px;
}

@media (max-width: 900px) {
    .site-header,
    .grid,
    .site-footer {
        width: 92%;
    }

    #main-content,
    #secondary-content {
        width: 100%;
        float: none;
    }

    #secondary-content {
        margin-top: 16px;
    }

    .main-nav li {
        display: inline-block;
        margin: 6px 10px;
    }

    .logo h1 {
        font-size: 1.8em;
    }
}