:root {
  --void: #07000f;
  --pink: #ff2bd6;
  --cyan: #00f0ff;
  --yellow: #ffe600;
  --acid: #c6ff00;
  --orange: #ff6a00;
  --white: #fff7fb;
  --crt-green: #39ff14;

  --font-display: 'Bungee', 'Arial Black', Impact, sans-serif;
  --font-shade: 'Bungee Shade', 'Bungee', Impact, sans-serif;
  --font-term: 'VT323', ui-monospace, Menlo, monospace;

  --page-w: min(90vw, 440px);
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  overflow-x: hidden;
  overflow-x: clip;
}

html {
  background: var(--void);
  color: var(--white);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100svh;
  font-family: var(--font-term);
  -webkit-tap-highlight-color: transparent;
}

/* ---------- fixed background / overlay layers ---------- */

.layer {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.layer--rave::before,
.layer--grid::before,
.layer--grain::before {
  content: '';
  position: absolute;
}

.layer--stars {
  z-index: 0;
  width: 100%;
  height: 100%;
}

.layer--rave {
  z-index: 1;
  mix-blend-mode: screen;
}

.layer--rave::before {
  inset: -60%;
  background: conic-gradient(
    from 0deg,
    var(--pink),
    transparent 18%,
    var(--cyan) 33%,
    transparent 52%,
    var(--yellow) 68%,
    transparent 84%,
    var(--pink)
  );
  opacity: 0.2;
  filter: blur(70px);
  animation: rave-spin 8s linear infinite;
}

.layer--grid {
  z-index: 2;
}

.layer--grid::before {
  inset: auto -60% 0 -60%;
  height: 46vh;
  background-image:
    linear-gradient(var(--pink) 2px, transparent 2px),
    linear-gradient(90deg, var(--pink) 2px, transparent 2px);
  background-size: 52px 52px;
  transform: perspective(240px) rotateX(64deg);
  transform-origin: bottom;
  opacity: 0.4;
  -webkit-mask-image: linear-gradient(to top, #000 15%, transparent 95%);
  mask-image: linear-gradient(to top, #000 15%, transparent 95%);
  animation: grid-run 0.55s linear infinite;
}

.layer--confetti {
  z-index: 40;
  width: 100%;
  height: 100%;
}

.layer--scanlines {
  z-index: 90;
  background: repeating-linear-gradient(to bottom, rgb(0 0 0 / 0.22) 0 1px, transparent 1px 3px);
}

.layer--grain {
  z-index: 91;
}

.layer--grain::before {
  inset: -30%;
  opacity: 0.1;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 0.4s steps(3) infinite;
}

/* ---------- page shell ---------- */

.page {
  position: relative;
  z-index: 10;
  overflow: hidden;
  padding-top: calc(var(--safe-top) + 1.4rem);
  padding-bottom: calc(var(--safe-bottom) + 2rem);
}

.stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.7rem;
  padding: 3rem 0 2.6rem;
}

/* ---------- marquees ---------- */

.marquee {
  position: relative;
  z-index: 20;
  width: 130vw;
  margin-left: -15vw;
  overflow: hidden;
  padding: 0.5rem 0 0.35rem;
  border-block: 3px solid var(--void);
  background: var(--yellow);
  color: var(--void);
  font-family: var(--font-display);
  font-size: clamp(1rem, 4.8vw, 1.4rem);
  transform: rotate(-3.5deg);
  box-shadow: 0 0 34px rgb(255 230 0 / 0.55);
}

.marquee--bottom {
  background: var(--pink);
  color: var(--white);
  transform: rotate(2.5deg);
  box-shadow: 0 0 34px rgb(255 43 214 / 0.6);
}

.marquee__track {
  display: flex;
  width: max-content;
  white-space: pre;
  animation: marquee 14s linear infinite;
}

.marquee--bottom .marquee__track {
  animation-direction: reverse;
  animation-duration: 11s;
}

/* ---------- footer ---------- */

.footer {
  display: grid;
  justify-items: center;
  gap: 1rem;
  width: var(--page-w);
  text-align: center;
  font-size: 1.2rem;
}

.counter {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.7rem;
  border: 3px ridge #b9b9b9;
  background: #000;
  color: var(--white);
}

.counter__digits {
  padding: 0 0.35em;
  background: #101010;
  color: var(--crt-green);
  font-size: 1.7rem;
  letter-spacing: 0.2em;
  text-shadow: 0 0 8px var(--crt-green);
}

.construction {
  width: 100%;
  padding: 0.55rem;
  border: 3px solid var(--void);
  background: repeating-linear-gradient(-45deg, var(--yellow) 0 16px, var(--void) 16px 32px);
  background-size: 45.25px 45.25px;
  animation: stripes 0.8s linear infinite;
}

.construction span {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  background: var(--yellow);
  color: var(--void);
  font-family: var(--font-display);
  font-size: clamp(0.8rem, 3.6vw, 1rem);
}

.footnote {
  margin: 0;
  opacity: 0.7;
}