/* Polonaise – Pocket Disco: the page of the Game Boy version */

@font-face {
    font-family: "Press Start 2P";
    src: url("fonts/PressStart2P-Regular.ttf") format("truetype");
    font-display: swap;
}

:root {
    --night: #12082a;
    --night-2: #241052;
    --violet: #3a1d7a;
    --pink: #ff4fa3;
    --cyan: #4ce8ff;
    --gold: #ffd34d;
    --text: #f1eaff;
    --muted: #b9acd8;
    --lcd: #c4cfa1;
    --lcd-dark: #1f1f1f;
    --pixel: "Press Start 2P", ui-monospace, monospace;
    --body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    color-scheme: dark;
}

* { box-sizing: border-box; }
html { background: var(--night); overflow-x: clip; }
body {
    margin: 0;
    color: var(--text);
    font: 17px/1.6 var(--body);
    background: radial-gradient(ellipse 120% 70% at 50% 0%, var(--night-2), var(--night) 70%);
    overflow-x: clip;
}
a { color: var(--cyan); }
a:hover { color: var(--pink); }
img { max-width: 100%; height: auto; display: block; }

/* ---- the club lights wandering over the page ---- */
.lights { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.lights i {
    position: absolute;
    width: 46vmax;
    height: 46vmax;
    border-radius: 50%;
    filter: blur(60px);
    opacity: .28;
    animation: drift 26s ease-in-out infinite alternate;
}
.lights i:nth-child(1) { background: var(--pink); left: -10vmax; top: -12vmax; }
.lights i:nth-child(2) { background: var(--cyan); right: -14vmax; top: 10vmax; animation-delay: -8s; animation-duration: 31s; }
.lights i:nth-child(3) { background: #7d4dff; left: 20vmax; top: 60vh; animation-delay: -15s; }
.lights i:nth-child(4) { background: var(--gold); right: 10vmax; top: 120vh; opacity: .15; animation-duration: 37s; }
@keyframes drift {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(12vmax, 8vmax) scale(1.15); }
    100% { transform: translate(-6vmax, 14vmax) scale(.9); }
}

header, main, footer { position: relative; z-index: 1; }

/* ---- the hero: text and the handheld ---- */
.hero {
    max-width: 1180px;
    margin: 0 auto;
    padding: 56px 24px 24px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 40px;
    align-items: center;
}
.kicker {
    font: 11px/1.6 var(--pixel);
    color: var(--cyan);
    letter-spacing: .08em;
    margin: 0 0 18px;
    text-transform: uppercase;
}
h1 {
    font: 400 clamp(28px, 4.4vw, 56px)/1.1 var(--pixel);
    white-space: nowrap;
    margin: 0 0 22px;
    color: #fff;
    text-shadow: 4px 4px 0 var(--pink), 8px 8px 0 #6a2bd6, 0 0 40px rgb(255 79 163 / .45);
}
.tagline { font-size: 20px; max-width: 34em; margin: 0 0 28px; color: var(--text); }

.cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 30px; }
.btn {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    font: 12px/1.4 var(--pixel);
    color: var(--text);
    text-decoration: none;
    padding: 16px 20px;
    border: 3px solid var(--text);
    border-radius: 4px;
    background: rgb(255 255 255 / .04);
    box-shadow: 5px 5px 0 rgb(0 0 0 / .45);
    transition: transform .1s, box-shadow .1s, background .1s;
}
.btn small { font: 13px/1.3 var(--body); opacity: .8; margin-top: 6px; }
.btn:hover, .btn:focus-visible { transform: translate(-2px, -2px); box-shadow: 7px 7px 0 rgb(0 0 0 / .45); color: var(--text); outline: none; }
.btn:active { transform: translate(2px, 2px); box-shadow: 2px 2px 0 rgb(0 0 0 / .45); }
.btn-main { background: var(--pink); border-color: #fff; color: #fff; }
.btn-main:hover, .btn-main:focus-visible { color: #fff; background: #ff63ae; }

.keys {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
    gap: 8px 18px;
    margin: 0 0 10px;
}
.keys div { display: flex; align-items: center; gap: 10px; }
.keys dt { display: flex; gap: 3px; flex: none; }
.keys dd { margin: 0; color: var(--muted); font-size: 15px; }
kbd {
    font: 10px/1 var(--pixel);
    min-width: 26px;
    text-align: center;
    padding: 6px 6px 5px;
    color: var(--night);
    background: var(--text);
    border-radius: 4px;
    box-shadow: 0 3px 0 #8a7cb0;
}
.hint { color: var(--muted); font-size: 15px; margin: 14px 0 0; }

/* ---- the stage: the handheld above a lit dance floor ---- */
.stage { position: relative; display: grid; justify-items: center; padding-bottom: 40px; }
.floor {
    position: absolute;
    left: -10%;
    right: -10%;
    bottom: -10px;
    height: 220px;
    z-index: -1;
    transform: perspective(380px) rotateX(58deg);
    transform-origin: 50% 100%;
    background:
        repeating-conic-gradient(rgb(255 79 163 / .55) 0 25%, rgb(76 232 255 / .18) 0 50%) 0 0 / 70px 70px;
    mask-image: radial-gradient(ellipse 60% 90% at 50% 100%, #000 30%, transparent 75%);
    animation: floor 2s steps(2) infinite;
}
@keyframes floor { 50% { filter: hue-rotate(80deg) brightness(1.3); } }

.device {
    --w: min(340px, 86vw);
    font-size: calc(var(--w) / 34);
    z-index: 1;
    width: var(--w);
    position: relative;
    padding: 1.6em 2em 2.4em;
    border-radius: 1.4em 1.4em 6em 1.4em;
    background:
        radial-gradient(circle at 20% 15%, rgb(255 255 255 / .55), transparent 40%),
        linear-gradient(160deg, #e9dcf7, #c9b4ea 55%, #a98ad8);
    box-shadow:
        inset 0 -0.5em 0 rgb(80 40 140 / .25),
        inset 0 0.3em 0 rgb(255 255 255 / .6),
        0 2.4em 3em rgb(0 0 0 / .55),
        0 0 4em rgb(255 79 163 / .25);
    color: #3b2a5e;
    outline: none;
    user-select: none;
    -webkit-user-select: none;
    -webkit-tap-highlight-color: transparent;
    transform: rotate(-2deg);
    transition: transform .3s, box-shadow .3s;
}
.device:focus-visible, .device.on:focus {
    box-shadow:
        inset 0 -0.5em 0 rgb(80 40 140 / .25),
        inset 0 0.3em 0 rgb(255 255 255 / .6),
        0 2.4em 3em rgb(0 0 0 / .55),
        0 0 0 .3em var(--cyan),
        0 0 4em rgb(76 232 255 / .5);
}
.device.on { transform: rotate(0deg); }

.top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1em; }
.brandline { font: .55em/1 var(--pixel); letter-spacing: .25em; opacity: .65; }
.switch {
    width: 4.4em; height: 1.2em; padding: 0;
    border: 0; border-radius: .6em;
    background: #8d76b8;
    box-shadow: inset 0 .15em .3em rgb(0 0 0 / .4);
    cursor: pointer;
    position: relative;
}
.switch span {
    position: absolute; top: .15em; left: .2em;
    width: 1.6em; height: .9em; border-radius: .45em;
    background: #f4ecff;
    transition: left .2s;
}
.device.on .switch span { left: 2.6em; }

.bezel {
    position: relative;
    background: linear-gradient(#4b4560, #3a3550);
    border-radius: .8em .8em 3em .8em;
    padding: 2em 3.2em 2.2em;
}
.bezel-label {
    position: absolute; top: .65em; left: 0; right: 0;
    text-align: center;
    font: .45em/1 var(--pixel);
    color: #b9b1d6;
    letter-spacing: .08em;
    white-space: nowrap;
}
.led {
    position: absolute; left: 1.1em; top: 45%;
    width: .7em; height: .7em; border-radius: 50%;
    background: #5a2a3a;
    box-shadow: inset 0 .1em .2em rgb(0 0 0 / .5);
}
.device.on .led { background: #ff3b5c; box-shadow: 0 0 .8em #ff3b5c; }

.lcd {
    position: relative;
    aspect-ratio: 160 / 144;
    background: #7f8a62;
    box-shadow: inset 0 .2em .5em rgb(0 0 0 / .45);
    overflow: hidden;
}
.lcd canvas {
    width: 100%; height: 100%;
    display: block;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
    opacity: 0;
    transition: opacity .4s;
}
.device.booted .lcd canvas { opacity: 1; }
.device.booted:not(.on) .lcd canvas { filter: brightness(.55) saturate(.6); }

.power {
    position: absolute; inset: 0;
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .6em;
    border: 0;
    background: repeating-linear-gradient(0deg, rgb(0 0 0 / .06) 0 2px, transparent 2px 4px), #9aa57c;
    color: var(--lcd-dark);
    font: 1.1em/1 var(--pixel);
    cursor: pointer;
}
.power small { font: .5em/1 var(--pixel); opacity: .7; }
.power-icon {
    font-size: 1.8em;
    animation: pulse 1.2s ease-in-out infinite;
}
@keyframes pulse { 50% { transform: scale(1.15); opacity: .7; } }
.power:hover .power-icon, .power:focus-visible .power-icon { color: #3c4a10; }
.device.on .power { display: none; }
.device.booted:not(.on) .power { background: rgb(154 165 124 / .5); }
.failed-msg {
    display: none;
    position: absolute; inset: 0; margin: 0;
    place-content: center; text-align: center;
    background: #9aa57c; color: var(--lcd-dark);
    font: .55em/1.8 var(--pixel);
    padding: 1em;
}
.device.failed .failed-msg { display: grid; }

.logo {
    margin: .7em 0 1.4em .2em;
    font: italic 700 1.3em/1 var(--body);
    color: #4c2a8a;
    letter-spacing: .02em;
}
.logo em { font-weight: 400; color: var(--pink); }

.controls { display: flex; justify-content: space-between; align-items: center; }

.pad { position: relative; width: 9em; height: 9em; cursor: pointer; touch-action: none; }
.pad .arm, .pad .hub { position: absolute; background: #2c2836; border-radius: .4em; }
.pad .arm.h { left: 0; right: 0; top: 33.3%; height: 33.3%; }
.pad .arm.v { top: 0; bottom: 0; left: 33.3%; width: 33.3%; }
.pad .arm { box-shadow: 0 .35em 0 #15131c; transition: transform .05s; }
.pad .hub { left: 38%; top: 38%; width: 24%; height: 24%; border-radius: 50%; background: radial-gradient(#3a3546, #24202e); }
.pad[data-dir="left"] { transform: perspective(20em) rotateY(-14deg); }
.pad[data-dir="right"] { transform: perspective(20em) rotateY(14deg); }
.pad[data-dir="up"] { transform: perspective(20em) rotateX(14deg); }
.pad[data-dir="down"] { transform: perspective(20em) rotateX(-14deg); }

.ab { display: flex; gap: 1.2em; transform: rotate(-25deg); margin-right: .4em; }
.round {
    width: 3.6em; height: 3.6em;
    border: 0; border-radius: 50%;
    background: radial-gradient(circle at 35% 30%, #ff8ec6, var(--pink) 45%, #c02474);
    box-shadow: 0 .35em 0 #8c1752, 0 .5em .8em rgb(0 0 0 / .3);
    color: rgb(255 255 255 / .85);
    font: .8em/1 var(--pixel);
    cursor: pointer;
    touch-action: none;
}
.round.a { margin-top: -1.6em; }
.round.down, .round:active { transform: translateY(.3em); box-shadow: 0 .05em 0 #8c1752; }

.pills { display: flex; justify-content: center; gap: 1.6em; margin-top: 1.8em; }
.pill {
    display: flex; flex-direction: column; align-items: center; gap: .9em;
    padding: 0; border: 0; background: none;
    font: .45em/1 var(--pixel); color: #4c3a75;
    cursor: pointer;
    transform: rotate(-25deg);
    touch-action: none;
}
.pill::before {
    content: "";
    width: 6em; height: 1.6em; border-radius: .8em;
    background: #7f739a;
    box-shadow: 0 .4em 0 #4f4566;
    order: -1;
}
.pill.down::before, .pill:active::before { transform: translateY(.3em); box-shadow: 0 .1em 0 #4f4566; }

.grille {
    position: absolute; right: 2.2em; bottom: 2.6em;
    display: flex; gap: .55em; transform: rotate(-30deg);
}
.grille i { width: .5em; height: 4.4em; border-radius: .25em; background: #8a73b5; box-shadow: inset 0 .15em .2em rgb(0 0 0 / .4); }
.mute {
    position: absolute; left: 2em; bottom: 1.6em;
    width: 2.6em; height: 2.6em; border-radius: 50%;
    border: 0; background: #b8a2dd; color: #4c3a75;
    font: 1em/1 var(--body);
    cursor: pointer;
    box-shadow: inset 0 .15em .2em rgb(255 255 255 / .6), 0 .2em .3em rgb(0 0 0 / .25);
}
.mute.muted { text-decoration: line-through; opacity: .6; }

/* ---- the mirror ball over the handheld ---- */
.ball {
    position: absolute;
    z-index: 0;                 /* behind the handheld, where they meet */
    top: -80px;
    right: max(-16px, calc(50% - var(--w, 340px) / 2 - 140px));
    width: 120px;
    padding-top: 70px;          /* the string */
    transform-origin: 50% 0;
    animation: sway 6s ease-in-out infinite;
    pointer-events: none;
}
.ball::before {
    content: "";
    position: absolute;
    top: 0; left: 50%;
    width: 2px; height: 72px;
    background: linear-gradient(transparent, #cfc4ee);
}
.ball img {
    width: 100%;
    border-radius: 50%;
    filter: drop-shadow(0 0 18px rgb(255 255 255 / .55)) drop-shadow(0 0 40px rgb(76 232 255 / .45));
    animation: glitter 1.6s steps(2) infinite;
}
.ball::after {          /* the beams */
    content: "";
    position: absolute;
    z-index: -1;
    left: 50%; top: calc(70px + 60px);
    width: 520px; height: 520px;
    margin: -260px 0 0 -260px;
    border-radius: 50%;
    background: repeating-conic-gradient(from 0deg, rgb(255 255 255 / .16) 0 4deg, transparent 4deg 30deg);
    mask-image: radial-gradient(circle, #000 15%, transparent 65%);
    -webkit-mask-image: radial-gradient(circle, #000 15%, transparent 65%);
    animation: beams 14s linear infinite;
}
@keyframes sway { 50% { transform: rotate(4deg); } }
@keyframes glitter { 50% { filter: drop-shadow(0 0 22px rgb(255 255 255 / .75)) drop-shadow(0 0 46px rgb(255 79 163 / .5)) brightness(1.15); } }
@keyframes beams { to { transform: rotate(360deg); } }

/* ---- the sections below ---- */
main { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
section { padding: 56px 0 8px; }
h2 { margin: 0 0 28px; font: 400 clamp(18px, 2.6vw, 26px)/1.3 var(--pixel); }
h2 span { background: linear-gradient(90deg, var(--pink), var(--cyan)); -webkit-background-clip: text; background-clip: text; color: transparent; }

.steps { list-style: none; counter-reset: s; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 16px; }
.steps li {
    counter-increment: s;
    position: relative;
    padding: 46px 18px 18px;
    background: rgb(255 255 255 / .05);
    border: 2px solid rgb(255 255 255 / .12);
    border-radius: 10px;
    color: var(--muted);
}
.steps li::before {
    content: counter(s);
    position: absolute; left: 18px; top: 14px;
    font: 18px/1 var(--pixel);
    color: var(--gold);
}
.steps b { display: block; color: var(--text); margin-bottom: 4px; }

/* ---- tonight: the poster in a neon frame, and a neon sign ---- */
.tonight {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 40px;
    align-items: center;
}
.poster {
    margin: 0;
    padding: 10px;
    border-radius: 14px;
    border: 3px solid #ffd6ec;
    box-shadow:
        0 0 6px #fff,
        0 0 16px var(--pink),
        0 0 42px var(--pink),
        inset 0 0 14px var(--pink);
    transform: rotate(-1.5deg);
}
.poster img { border-radius: 6px; }
.neon {
    margin: 0 0 18px;
    font: 400 clamp(30px, 4.6vw, 54px)/1.1 var(--pixel);
    color: #fff;
    text-shadow: 0 0 4px #fff, 0 0 12px var(--cyan), 0 0 28px var(--cyan), 0 0 56px var(--cyan);
}
.neon .live {
    color: #fff;
    text-shadow: 0 0 4px #fff, 0 0 12px var(--pink), 0 0 28px var(--pink), 0 0 56px var(--pink);
    animation: flicker 5s infinite;
}
@keyframes flicker {
    0%, 18%, 22%, 25%, 53%, 57%, 100% { opacity: 1; }
    20%, 24%, 55% { opacity: .25; text-shadow: none; }
}
h2.plain { font: 700 26px/1.25 var(--body); margin: 0 0 12px; color: var(--text); }
.sign p:not(.neon) { color: var(--muted); margin: 0; }

.elsewhere p { max-width: 46em; color: var(--muted); margin: 0 0 24px; }

footer {
    margin-top: 72px;
    padding: 28px 24px 34px;
    border-top: 2px solid rgb(255 255 255 / .1);
    background: rgb(0 0 0 / .25);
    color: var(--muted);
    font-size: 14px;
    display: flex; flex-wrap: wrap; gap: 12px 30px; justify-content: space-between; align-items: center;
}
footer p { margin: 0; max-width: 60em; }
/* the label of the made-up publisher, as a neon sign */
.brand, .presents b {
    font: 400 18px/1 var(--pixel);
    letter-spacing: .3em;
    color: #fff;
    text-shadow: 0 0 4px #fff, 0 0 10px var(--gold), 0 0 24px var(--gold);
}
.sign p.presents { margin-top: 18px; font-size: 15px; letter-spacing: .05em; }
.presents b { font-size: 13px; letter-spacing: .25em; margin: 0 4px; }
footer nav { display: flex; gap: 22px; }

@media (max-width: 900px) {
    .hero { grid-template-columns: 1fr; padding-top: 36px; gap: 28px; }
    .tonight { grid-template-columns: 1fr; gap: 28px; }
    .ball { width: 84px; padding-top: 44px; top: -36px; right: 2%; }
    .ball::before { height: 46px; }
    .ball::after { top: calc(44px + 42px); }
    .stage { order: -1; }
    .intro { text-align: left; }
    h1 { font-size: min(9vw, 56px); }
    .floor { height: 160px; }
}
@media (max-width: 520px) {
    body { font-size: 16px; }
    .ball { display: none; }
    .hero, main { padding-left: 16px; padding-right: 16px; }
    .tagline { font-size: 18px; }
}
@media (prefers-reduced-motion: reduce) {
    .lights i, .floor, .power-icon, .ball, .ball img, .ball::after, .neon .live { animation: none; }
    .device, .device.on { transform: none; }
}