*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --cell: 46px;
  --cell-gap: 4px;
  --face-gap: 10px;
  --face-size: calc(3 * var(--cell) + 2 * var(--cell-gap));
}

body {
  background: #000;
  font-family: 'Chakra Petch', sans-serif;
}

main {
  min-height: 100vh;
  min-height: 100dvh;
  background: #000;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Grid */
.grid-wrap {
  position: absolute;
  inset: 0;
  overflow: hidden;
  opacity: 0.42;
  pointer-events: none;
}

.grid {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: grid;
  grid-template-columns: repeat(16, var(--face-size));
  grid-template-rows: repeat(10, var(--face-size));
  gap: var(--face-gap);
}

.face {
  display: grid;
  grid-template-columns: repeat(3, var(--cell));
  grid-template-rows: repeat(3, var(--cell));
  gap: var(--cell-gap);
}

.face > div { border-radius: 1px; }

.cell-lit {
  background: linear-gradient(145deg, #ff2a2a 0%, #cc0000 52%, #7a0000 100%);
  box-shadow:
    inset 0 1px 3px rgba(255, 120, 120, 0.30),
    inset 0 -1px 2px rgba(0, 0, 0, 0.55),
    0 0 10px rgba(200, 0, 0, 0.28);
}

.cell-dark {
  background: #0c0c0c;
  border: 1px solid rgba(180, 0, 0, 0.07);
}

@keyframes cell-pulse {
  0%, 100% { opacity: 1;    filter: brightness(1.0); }
  50%      { opacity: 0.55; filter: brightness(0.65); }
}

.p0 { animation: cell-pulse 4.2s ease-in-out infinite 0.0s; }
.p1 { animation: cell-pulse 5.8s ease-in-out infinite 1.4s; }
.p2 { animation: cell-pulse 3.5s ease-in-out infinite 2.7s; }
.p3 { animation: cell-pulse 6.6s ease-in-out infinite 0.9s; }

/* Overlays */
.vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 520px 380px at 50% 50%, rgba(0,0,0,0.72) 0%, transparent 100%),
    radial-gradient(ellipse at 50% 50%, transparent 30%, rgba(0,0,0,0.78) 100%);
}

.bloom {
  position: absolute;
  width: 560px;
  height: 400px;
  max-width: 100%;
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  background: radial-gradient(ellipse at center, rgba(160,0,0,0.14) 0%, transparent 65%);
}

/* Text */
.content {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 0 1.5rem;
  max-width: 520px;
}

.eyebrow {
  color: rgba(255,255,255,0.78);
  font-size: clamp(0.58rem, 1.2vw, 0.68rem);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  font-weight: 300;
  margin-bottom: 0.9rem;
}

.headline {
  font-size: clamp(1.6rem, 4.5vw, 2.7rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.14;
  background: linear-gradient(130deg, #ff3636 0%, #cc0000 45%, #ff2020 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 18px rgba(200,0,0,0.65));
}

.divider {
  width: 44px;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(180,0,0,0.8), transparent);
  margin: 1.5rem auto;
}

.footer-text {
  color: rgba(255,255,255,0.62);
  font-size: clamp(0.58rem, 1.2vw, 0.68rem);
  letter-spacing: 0.38em;
  text-transform: uppercase;
  font-weight: 300;
}

@media (max-width: 480px) {
  .eyebrow, .footer-text { font-size: 0.58rem; letter-spacing: 0.26em; }
  .vignette {
    background:
      radial-gradient(ellipse 90vw 380px at 50% 50%, rgba(0,0,0,0.72) 0%, transparent 100%),
      radial-gradient(ellipse at 50% 50%, transparent 30%, rgba(0,0,0,0.78) 100%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .p0, .p1, .p2, .p3 { animation: none; }
}