* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
}

body {
  overflow: hidden;
  background: #000;
  color: #fff;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

#spiral {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  background: #000;
}

.center,
.message {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.enter {
  border: 0;
  background: transparent;
  color: #fff;
  cursor: pointer;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 200;
  letter-spacing: 0.22em;
  line-height: 1;
  padding: 18px 22px 18px 28px;
  text-transform: uppercase;
  opacity: 0;
  animation: enterIn 1.5s ease 1.2s forwards, pulse 2.6s ease-in-out 2.8s infinite;
  transition: letter-spacing 600ms ease, opacity 300ms ease;
}

.enter:hover,
.enter:focus-visible {
  letter-spacing: 0.32em;
  outline: none;
}

.message {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.message h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(36px, 7vw, 86px);
  font-weight: 230;
  line-height: 0.98;
}

.message p {
  max-width: 620px;
  margin: 22px auto 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: clamp(16px, 2vw, 21px);
  line-height: 1.55;
}

.message .eyebrow {
  margin-bottom: 18px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.36em;
  text-transform: uppercase;
}

.back {
  display: inline-block;
  margin-top: 36px;
  color: #fff;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-decoration: none;
  text-transform: uppercase;
}

.back:hover,
.back:focus-visible {
  text-decoration: underline;
  outline: none;
}

@keyframes enterIn {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.72;
  }
  50% {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .enter {
    animation: enterIn 300ms ease forwards;
  }
}