/* start light mode styling */
:root {
    --text: darkslategrey;
    --border: lightgrey;
    --accent: teal;
    --bg: #dce3e1;
    --gradientTop: white;
    --gradientBottom: rgb(240, 248, 255, .8);
    --transition-speed: 0.3s;
    --border-radius: 5px;
    --shadow: 0 2px 5px rgba(0,0,0,0.1);
}
header {
    background: linear-gradient(135deg, var(--gradientTop) 0%, var(--accent) 50%, var(--gradientBottom) 100%);
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
            linear-gradient(90deg, transparent 50%, rgba(255,255,255,0.1) 50%),
            linear-gradient(transparent 50%, rgba(0,0,0,0.1) 50%);
    background-size: 20px 20px;
    opacity: 0.3;
}
/* end light mode styling */


/* start dark mode styling */
@media (prefers-color-scheme: dark) {
    :root {
        --text: white;
        --border: #5a7678;
        --accent: #74C365;
        --bg: rgba(0,60,60,0.8);
        --gradientBottom: rgb(0, 50, 60);
        --gradientTop: darkslategrey;
    }

    a:link { color: #7dbfff; }

    header {
        background: linear-gradient(135deg, #001a1a 0%, var(--accent) 50%, #003333 100%);
    }

    header::before {
        background-image:
                linear-gradient(90deg, transparent 50%, rgba(0,0,0,0.2) 50%),
                linear-gradient(transparent 50%, rgba(255,255,255,0.1) 50%);
    }
}
/* end dark mode styling */


* {
    box-sizing: border-box;
}
body {
    padding: 10px;
    font-family: 'MS PGothic', sans-serif;
    color: var(--text);

    /* page background pattern */
    background-color: var(--gradientTop);
    background-image:  linear-gradient(30deg, var(--bg) 12%, transparent 12.5%, transparent 87%, var(--bg) 87.5%, var(--bg)), linear-gradient(150deg, var(--bg) 12%, transparent 12.5%, transparent 87%, var(--bg) 87.5%, var(--bg)), linear-gradient(30deg, var(--bg) 12%, transparent 12.5%, transparent 87%, var(--bg) 87.5%, var(--bg)), linear-gradient(150deg, var(--bg) 12%, transparent 12.5%, transparent 87%, var(--bg) 87.5%, var(--bg)), linear-gradient(60deg, var(--bg) 25%, transparent 25.5%, transparent 75%, var(--bg) 75%, var(--bg)), linear-gradient(60deg, var(--bg) 25%, transparent 25.5%, transparent 75%, var(--bg) 75%, var(--bg));
    background-size: 20px 35px;
    background-position: 0 0, 0 0, 10px 18px, 10px 18px, 0 0, 10px 18px;
}


.container {
    max-width: 55rem;
    margin: 5vw auto 12px auto;
    border: 6px ridge var(--border);
    outline: 3px solid var(--gradientTop);
    outline-offset: 4px;
    border-radius: 10px;
    display: flex;
    flex-wrap: wrap;
    padding: 5px;
    gap: 5px;

    /* container background pattern */
    background-color: var(--gradientBottom);
    background-image:  repeating-radial-gradient( circle at 0 0, transparent 0, var(--gradientBottom) 9px ), repeating-linear-gradient( var(--bg), var(--bg));
}
/* these control the column widths */
.small { flex: 1 1 9%; }
.large { flex: 1 1 82%; }
.full { flex: 1 1 100%; }
.half { flex: 1 1 49%; }


header {
    background-size: cover;
    background-position: center;
    width: 100%;
    height: 120px; /* change banner height here*/
    border: 2px ridge var(--border);
    border-radius: 5px;
    position: relative;
}
header span {
    font-size: 2.5rem;
    position: absolute;
    bottom: 0;
    right: 10px;
    margin: 10px;
    font-weight: bold;
    text-shadow: 1px 1px var(--text),
    -1px 1px var(--text),
    1px -1px var(--accent),
    -1px -1px var(--accent);
    color: var(--gradientTop);
    z-index: 1;
}


nav {
    border: 2px ridge var(--border);
    border-radius: 5px;
    padding: 5px;
    background: linear-gradient(var(--gradientTop),var(--gradientBottom));
}
nav div {
    text-align: center;
    font-size: 1.25rem;
    margin: 5px 5px 10px 5px;
}
nav a {
    display: block;
    margin: 5px;
    background: linear-gradient(to right,var(--bg),var(--gradientBottom));
    border-radius: 5px;
    padding: 2px 7px;
    text-decoration: none;
}
nav a:link, nav a:visited {
    color: var(--text);
}
nav a:hover, nav a:focus {
    background: linear-gradient(to right,var(--bg), var(--gradientBottom), var(--gradientTop));
}

/* optional button styling like in the preview */
div.small > img {
    display: block;
    margin: 5px auto;
    border:2px ridge var(--border);
    border-radius: 5px;
}


section {
    border: 2px ridge var(--border);
    border-radius: 5px;
    background: linear-gradient(var(--gradientTop),var(--gradientBottom));
    padding: 5px;
}


footer {
    text-align: center;
    margin-bottom: 5vw;
    font-size: 0.8rem;
}
footer a {
    text-decoration: none;
}


h1, h2, h3, h4, h5, h6, p  {
    margin: 5px;
    line-height: 1.2;
}
h1 {
    font-size: 1.4rem;
    letter-spacing: 2px;
    font-weight: normal;
    text-align: center;
    border-bottom: 2px ridge var(--border);
    padding-bottom: 5px;
}
h2 {
    font-size: 1.25rem;
    font-weight: normal;
    text-align: center;
}
h3 {
    font-size: 1.1rem;
}
h4 {
    font-size: 1rem;
    color: var(--accent);
    padding-left: 12px;
}

/* prevents overflow on smaller screens */
img { max-width: 100%; }
pre { overflow-x: auto; }


a:hover, a:focus {
    font-style: italic;
}
a:visited {
    color: var(--accent);
}

/* Accessibility improvements */
:focus {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .container {
        border: none;
        outline: none;
        background: white !important;
    }

    nav, .button, .status {
        display: none;
    }

    * {
        color: black !important;
        background: white !important;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}