:root {
    /* @link https://utopia.fyi/type/calculator?c=
    320,14,1.618,1205,24,1.618,5,2,1440-1600-700&s=0.75|0.5|0.25,1.5|2|3|4|6,s-l&g=s,l,xl,12 */
    --gxs: clamp(0.3342rem, 0.2997rem + 0.1726vw, 0.4297rem);
    --gs: clamp(0.5408rem, 0.4849rem + 0.2793vw, 0.6953rem);
    --g0: clamp(0.875rem, 0.7846rem + 0.452vw, 1.125rem);
    --g1: clamp(1.4158rem, 1.2695rem + 0.7313vw, 1.8203rem);
    --g2: clamp(2.2907rem, 2.054rem + 1.1832vw, 2.9452rem);
    --g3: clamp(3.7063rem, 3.3234rem + 1.9145vw, 4.7653rem);
    --g4: clamp(5.9968rem, 5.3773rem + 3.0976vw, 7.7102rem);
    --g5: clamp(9.7029rem, 8.7005rem + 5.012vw, 12.4751rem);

    --min: 320px;
    --mid: calc(11 * var(--g2));
    --max: 1240px;

    --c1: #ff003f; /* Neon Red */
    --c2: #e6deca; /* Ivory Paper */
    --c3: #6f00ff; /* Electric Indigo */
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family:
        ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas,
        "DejaVu Sans Mono", monospace;
}

html {
    color-scheme: light;
    scroll-behavior: smooth;
    font-size: 100%;
    font-family:
        ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas,
        "DejaVu Sans Mono", monospace;

    font-weight: 400;
    font-synthesis: none;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-align: left;
    cursor: default;
    color: var(--c1);
    background-color: var(--c2);
}

body,
section {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    width: 100%;
}

body {
    min-height: 100vh;
    font-size: var(--g0);
}

section {
    padding: var(--g2) var(--gs);
    min-height: 38vh;
    z-index: 3;
}

nav {
    display: flex;
    flex-wrap: wrap;
    width: 100%;
    max-width: var(--mid);
    padding: var(--g2) 0;
    row-gap: var(--g0);
    column-gap: var(--g1);
}

img,
.secret {
    width: 100%;
    max-width: var(--mid);
    margin: var(--g1) 0;
}

/* typography */
h1,
h2,
h3,
h4,
p,
ol,
li {
    width: 100%;
    max-width: var(--mid);
    line-height: 1.618em;
    letter-spacing: 0;
}

h1 {
    font-size: var(--g2);
}

h2,
h3,
h4 {
    font-size: var(--g1);
}

p,
li {
    font-size: var(--g0);
    margin: calc((1.618em) / 2) 0;
    text-wrap: balance;
}

ol {
    padding-left: 1.618em;
}

/* decor */

i {
    letter-spacing: 0.162em;
}

.s {
    font-size: var(--gs);
    letter-spacing: 0.162em;
}

.r {
    text-align: right;
    margin: var(--gs) 0;
    padding: var(--gxs);
    border: solid 1px var(--c1);
    border-width: 1px 1px 0 0;
    line-height: 1em;
}

u {
    font-weight: inherit;
    letter-spacing: inherit;
    text-decoration: none;
    white-space: nowrap;
    color: var(--c2);
    background-color: var(--c1);
    padding: 0 var(--gxs);
}

.c3 {
    color: var(--c3);
}

/* a & b */

a,
button {
    position: relative; /* kluczowe */
    color: var(--c1);
    background-color: var(--c2);
    white-space: nowrap;
    text-decoration: none;
    letter-spacing: 0.162em;
    font-size: inherit;
    border: 1px solid var(--c1);
    border-width: 1px 1px 2px 2px;
    padding: 0 calc(var(--gxs) / 2);
    cursor: pointer;
    transition:
        top 0.08s ease,
        left 0.08s ease;
}

:is(a, button):hover,
:is(a, button):active {
    top: 2px;
    left: 2px;
}

/* <h1 class="trm" style="--dl: 0.7s">NEOĦANSA</h1>  */

.trm {
    position: relative;
    display: block;
    width: 100%;
    max-width: var(--mid);
}

.trm::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background-color: var(--c2);
    animation: reveal 1.3s steps(37, end) forwards;
    animation-delay: var(--dl);
}

@keyframes reveal {
    from {
        width: 100%;
    }
    to {
        width: 0;
    }
}

.secret {
    position: relative;
    overflow: hidden;
}

.secret .random {
    position: absolute;
    inset: 0;
    z-index: 1;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    pointer-events: none;
    white-space: pre;
    overflow: hidden;
    opacity: 1;
    transition: opacity 1s ease;
    font-family: monospace;
    line-height: 1.15;
}

.secret > *:not(.random) {
    opacity: 0;
    transition: opacity 1s ease;
    position: relative;
    z-index: 0;
}

.secret:hover .random {
    opacity: 0;
}

.secret:hover > *:not(.random) {
    opacity: 1;
}

/* responsive */

@media (max-width: 700px) {
    :root {
        --mid: calc(100% - var(--g0));
    }

    section {
        padding: var(--g2) calc(var(--g0) / 2);
    }
}

@media (min-width: 770px) and (prefers-reduced-motion: no-preference) {
    @view-transition {
        navigation: auto;
    }
}