:root {
  --bg: #000000;
  --fg: #ffffff;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  overflow: hidden;
  background: var(--bg);
}

body {
  color: var(--fg);
  font-family: "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 50% 20%, rgba(255, 255, 255, 0.03), transparent 42%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 38%),
    #000;
  pointer-events: none;
}

.page-shell {
  position: relative;
  display: grid;
  min-height: 100vh;
  min-height: 100svh;
  place-items: center;
  padding: clamp(1.5rem, 4vw, 3rem);
  isolation: isolate;
}

.hero {
  display: grid;
  place-items: center;
  width: min(100%, 88rem);
  text-align: center;
}

.headline-wrap {
  position: relative;
  display: grid;
  place-items: center;
  min-height: clamp(9rem, 28vh, 18rem);
  width: 100%;
}

.headline {
  margin: 0;
  max-width: min(17ch, 100%);
  padding-inline: 0.08em;
  font-size: clamp(1.35rem, 2.45vw + 0.55rem, 4rem);
  font-weight: 650;
  letter-spacing: 0.2em;
  line-height: 1;
  font-feature-settings: "kern" 1, "liga" 1, "case" 1;
  text-transform: uppercase;
  opacity: 0;
  filter: blur(22px);
  transform: scale(0.988);
  text-shadow: 0 0 28px rgba(255, 255, 255, 0.05);
  transition:
    opacity 2.5s cubic-bezier(0.19, 1, 0.22, 1),
    filter 3.1s cubic-bezier(0.19, 1, 0.22, 1),
    transform 3.1s cubic-bezier(0.19, 1, 0.22, 1);
}

.headline.is-visible {
  opacity: 1;
  filter: blur(0);
  transform: scale(1);
}

.headline.is-exiting {
  opacity: 0;
  filter: blur(18px);
  transform: scale(1.016);
}

.footer {
  position: fixed;
  left: 50%;
  bottom: clamp(1rem, 2vw, 1.75rem);
  transform: translateX(-50%);
  z-index: 2;
}

.footer a {
  color: rgba(255, 255, 255, 0.36);
  font-size: clamp(0.68rem, 0.65rem + 0.18vw, 0.82rem);
  letter-spacing: 0.34em;
  text-decoration: none;
  transition: color 0.5s ease, opacity 0.5s ease;
}

.footer a:hover,
.footer a:focus-visible {
  color: rgba(255, 255, 255, 0.62);
}

.vignette,
.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.vignette {
  z-index: 1;
  background:
    radial-gradient(circle at center, transparent 42%, rgba(0, 0, 0, 0.38) 100%),
    radial-gradient(circle at center, transparent 58%, rgba(0, 0, 0, 0.55) 100%);
}

.noise {
  z-index: 2;
  opacity: 0.1;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180' viewBox='0 0 180 180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='0.9'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}

@media (max-width: 720px) {
  .page-shell {
    padding-inline: 1.2rem;
  }

  .headline {
    max-width: 12ch;
    font-size: clamp(1.2rem, 5.7vw, 2.55rem);
    letter-spacing: 0.14em;
  }

  .footer a {
    letter-spacing: 0.2em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .headline {
    transition-duration: 0.01ms;
  }
}