@import url("/assets/css/fonts.css");

:root {
    --fg-low: oklch(70% 0.01368 253.09);
    --fg: oklch(80% 0.01368 253.09);
    --fg-high: oklch(90% 0.01368 253.09);

    --bg-lowest: oklch(15% 0.01368 253.09);
    --bg-low: oklch(17.5% 0.01368 253.09);
    --bg: oklch(20% 0.01368 253.09);
    --bg-high: oklch(22.5% 0.01368 253.09);
    --bg-highest: oklch(25% 0.01368 253.09);

    --border: oklch(35% 0.023 253.09);
    --border-variant: oklch(30% 0.023 253.09);

    --red: oklch(80% 0.15765 24.728);
    --red-bright: oklch(90% 0.15765 24.728);
    --orange: oklch(80% 0.139 45.216);
    --orange-bright: oklch(90% 0.139 45.216);
    --yellow: oklch(80% 0.12758 76.402);
    --yellow-bright: oklch(90% 0.12758 76.402);
    --green: oklch(80% 0.11211 147.63);
    --green-bright: oklch(90% 0.11211 147.63);
    --cyan: oklch(80% 0.09919 181.49);
    --cyan-bright: oklch(90% 0.09919 181.49);
    --blue: oklch(80% 0.09994 249.58);
    --blue-bright: oklch(90% 0.09994 249.58);
    --purple: oklch(80% 0.09923 296.61);
    --purple-bright: oklch(90% 0.09923 296.61);
    --pink: oklch(80% 0.06662 9.2146);
    --pink-bright: oklch(90% 0.06662 9.2146);

    --border-radius: 5px;
    --border-radius-big: calc(var(--border-radius) * 4);
    --border-width: 1px;
    --padding: 5px;
    --padding-big: 10px;
    --easing: cubic-bezier(0.2, 0.0, 0, 1.0);
    --arrow-size: 1em;
}

body {
    font-family: "Aporetic", "Aporetic Fallback";
    background-color: var(--bg-lowest);
    background-repeat: repeat;
    color: var(--bg);
    display: flex;
    min-height: 100vh;
    padding: calc(var(--padding-big) * 2);
    padding-bottom: 0;
    box-sizing: border-box;
    position: relative;
    scroll-behavior: smooth;
    flex-direction: column;
}

#triangles {
    content: "";
    /*                  cos(22.5deg)         sin(22.5deg) */
    width: calc(100vw * 0.92387953 + 100vh * 0.38268343);
    height: calc(100vh * 0.92387953 + 100vw * 0.38268343);
    position: fixed;
    left: 50%;
    top: 50%;
    z-index: 2;
    background-image: url("/assets/triangle.svg");
    opacity: 0.075;
    transform: translate(-50%, -50%) rotate(22.5deg);
    animation: scroll 16s linear infinite;
}

@media screen and (prefers-reduced-motion: reduce) { 
    #triangles {
        animation: none;
    }
}

@keyframes scroll {
    to {
       background-position: -96px 0; /* svg size */
    }
}

.subtle {
    color: var(--fg-low);
}

main {
    flex-grow: 1;
    line-height: 1.4;
    padding: calc(var(--padding-big) * 2);
    display: flex;
    justify-content: center;
    box-sizing: border-box;
    background-color: var(--yellow);
    border-radius: var(--border-radius-big);
    overflow: hidden;
    text-wrap: pretty;
}

main > div {
    max-width: 70%;
    width: 70%;
    z-index: 3;
    position: relative;
}

nav {
    padding-bottom: 0;
    position: relative;
}

nav > ul {
    display: flex;
    gap: calc(var(--padding) + var(--border-radius) * 2);
    padding-left: calc(var(--border-radius-big) + var(--padding-big));
}

nav .tab {
    --color: var(--bg);
    display: block;
    color: var(--fg);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    background-color: var(--color);
    position: relative;
    transition: background-color 0.2s var(--easing);
}

nav .tab:not(.active) {
    z-index: 3
}

nav .tab:hover {
    --color: var(--bg-high);
}

nav .tab.active {
    --color: var(--yellow);
    color: var(--bg);
}

nav .tab > a {
    padding: var(--padding-big);
    display: block;
    color: inherit;
    text-decoration: none;
    z-index: 3;
    position: relative;
}

nav .tab > a:focus-visible {
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    outline: var(--blue) solid calc(var(--border-radius) + 1px);
    outline-offset: 0;
}

nav .tab > a > div {
    background-color: currentColor;
    width: 1.25em;
    height: 1.25em;
    mask-size: cover;
    display: none;
}

@media (max-width: 500px) {
    nav .tab > a > div {
        display: block;
    }

    nav .tab > a > span {
        display: none;
    }
}

footer {
    text-align: center;
    color: var(--fg);
    border-radius: var(--border-radius-big) var(--border-radius-big) 0 0;
    padding: var(--padding-big);
    font-size: 0.8em;
    position: relative;
    background-color: var(--bg-lowest);
    z-index: 3;
}

footer > div {
    display: flex;
    flex-direction: column;
    gap: var(--padding);
}

footer > div > div {
    line-height: 1.5;
}

footer > div > div > span:not(:last-of-type)::after {
    content: "";
    border-left: calc(var(--border-width) * 1) solid var(--border);
    margin-left: var(--padding);
    margin-right: var(--padding);
    display: inline-block;
    vertical-align: baseline;
    height: 1cap;
}

footer a {
    color: var(--fg);
}

footer a:hover,
footer a:focus {
    color: var(--yellow);
}

main a {
    color: inherit;
}

.wavy {
    font-size: 3em;
}

.wavy > div {
    display: inline-block;
    white-space: nowrap;
}