:root {
  --bg: #04060a;
  --fg: #e6eef5;
  --line: rgba(207, 227, 242, 0.35);
}

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

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--fg);
  overflow: hidden;
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
}

#scene {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  opacity: 0;
  transition: opacity 2.4s ease;
}
#scene.ready { opacity: 1; }

.vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at 50% 45%, transparent 40%, rgba(4, 6, 10, 0.85) 100%);
}

main {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding-top: 22vh;
  gap: 2.4rem;
  pointer-events: none;
}

h1 {
  font-weight: 200;
  font-size: clamp(3rem, 9vw, 7.5rem);
  letter-spacing: 0.5em;
  margin-right: -0.5em; /* optically recenter tracked text */
  line-height: 1;
  text-transform: lowercase;
  opacity: 0;
  animation: rise 2.2s 0.4s cubic-bezier(.2, .7, .2, 1) forwards;
}

.cta {
  pointer-events: auto;
  color: var(--fg);
  text-decoration: none;
  font-weight: 300;
  font-size: 0.72rem;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  padding: 0.95rem 1.9rem 0.95rem 2.32rem;
  border: 1px solid var(--line);
  background: rgba(4, 6, 10, 0.25);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: border-color .4s ease, background .4s ease, color .4s ease, letter-spacing .4s ease;
  opacity: 0;
  animation: rise 2.2s 0.9s cubic-bezier(.2, .7, .2, 1) forwards;
}
.cta:hover, .cta:focus-visible {
  border-color: var(--fg);
  background: var(--fg);
  color: var(--bg);
  outline: none;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(12px); filter: blur(6px); }
  to   { opacity: 1; transform: none; filter: none; }
}

@media (prefers-reduced-motion: reduce) {
  h1, .cta { animation: none; opacity: 1; }
  #scene { transition: none; }
}