/* start color styling */
@import url('https://fonts.googleapis.com/css2?family=Oxanium:wght@400;600;700&display=swap');

:root {
    --text: #E8E8E8;
    --border: #A0A0A0;
    --accent: #30587F;
    --bg: #080D21;
    --gradientTop: #0F1017;
    --gradientBottom: #1F2259;
}
/* end color styling */

* { 
    box-sizing: border-box;
}

body {
    padding: 10px;
    font-family: 'Oxanium', 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;
    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));
}

/* flex widths */
.small { 
    flex: 0 0 12%; /* fixed width for nav on left */
    order: 0;
}
.large { flex: 1 1 82%; }
.full { flex: 1 1 100%; }
.half { flex: 1 1 42%; }

header {
    background: url('/assets/phenotypebanner.png') center center / cover no-repeat; 
    width: 100%;
    height: 0;
    padding-top: 22%; /* adjust to roughly match banner aspect ratio */
    border: 2px ridge var(--border);
    border-radius: 5px;
    position: relative;
}

header span {
    font-size: 2.3rem;
    position: absolute;
    bottom: 10px;
    right: 20px;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8),
                 -1px -1px 2px rgba(0, 0, 0, 0.5);
    color: var(--text);
}

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));
}

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;
}

img { max-width: 100%; }
pre { overflow-x: auto; }

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

#audioToggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border: 2px solid var(--border);
    border-radius: 8px;
    background: var(--gradientTop);
    color: var(--text);
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 1000;
    transition: all 0.3s ease;
}

#audioToggle:hover {
    border-color: var(--accent);
    box-shadow: 0 0 10px var(--accent);
}

#audioToggle.playing {
    border-color: var(--accent);
    box-shadow: 0 0 15px var(--accent);
}

/* CRT scanline effect */
.crt-overlay {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	pointer-events: none;
	z-index: 9999;
	background: repeating-linear-gradient(
		0deg,
		rgba(0, 0, 0, 0.1),
		rgba(0, 0, 0, 0.1) 1px,
		transparent 2px,
		transparent 3px
	);
	animation: scanlines 4s linear infinite;
}

@keyframes scanlines {
	0% { transform: translateY(0); }
	100% { transform: translateY(6px); }
}

/* Scroll buttons */
#scrollButtons {
	position: fixed;
	bottom: 20px;
	right: 80px;
	display: flex;
	flex-direction: row;
	gap: 10px;
	z-index: 1000;
}

.scrollBtn {
    width: 50px;
    height: 50px;
    border: 2px solid var(--border);
    border-radius: 8px;
    background: var(--gradientTop);
    color: var(--text);
    font-size: 0.7rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(77, 159, 255, 0.4);
    font-family: 'Oxanium', sans-serif;
    text-align: center;
    line-height: 1.2;
    padding: 5px;
}

.scrollBtn:hover {
    border-color: var(--accent);
    box-shadow: 0 0 15px rgba(77, 159, 255, 0.6);
}