:root {
  color-scheme: dark;
  --background: #0b0b14;
  --surface: rgba(255, 255, 255, 0.055);
  --text: #f7f5ff;
  --muted: #aaa5be;
  --accent: #a98cff;
  --accent-soft: #71e3c6;
}

* { box-sizing: border-box; }

html { min-height: 100%; }

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  grid-template-rows: 1fr auto;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 15%, rgba(121, 87, 255, 0.17), transparent 35rem),
    radial-gradient(circle at 85% 80%, rgba(61, 222, 181, 0.09), transparent 32rem),
    var(--background);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.page-shell {
  display: grid;
  place-items: center;
  padding: 3rem 1.5rem;
}

.hero {
  width: min(100%, 42rem);
  padding: clamp(2rem, 7vw, 4.5rem);
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 2rem;
  background: var(--surface);
  box-shadow: 0 2rem 6rem rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
}

.eyebrow {
  margin: 0 0 1.2rem;
  color: var(--accent-soft);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(3.25rem, 13vw, 7rem);
  line-height: 0.9;
  letter-spacing: -0.075em;
}

h1 span { color: var(--accent); }

.subtitle {
  margin: 1.5rem 0 2rem;
  color: var(--muted);
  font-size: clamp(1rem, 3vw, 1.25rem);
  line-height: 1.6;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.7rem 1rem;
  color: #d9d5e5;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  font-size: 0.82rem;
}

.status-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--accent-soft);
  box-shadow: 0 0 1rem rgba(113, 227, 198, 0.8);
}

.back-link {
  display: block;
  width: fit-content;
  margin: 1.6rem auto 0;
  color: var(--muted);
  font-size: 0.85rem;
  text-underline-offset: 0.3em;
}

.qdl-link {
  display: block;
  width: fit-content;
  margin: 1.6rem auto 0;
  padding: 0.75rem 1.1rem;
  color: var(--text);
  border: 1px solid rgba(169, 140, 255, 0.4);
  border-radius: 999px;
  background: rgba(169, 140, 255, 0.09);
  font-size: 0.85rem;
  font-weight: 650;
  text-decoration: none;
  transition: background-color 180ms ease, transform 180ms ease;
}

.qdl-link:hover,
.qdl-link:focus-visible {
  background: rgba(169, 140, 255, 0.18);
  transform: translateY(-1px);
}

.back-link:hover,
.back-link:focus-visible { color: var(--text); }

footer {
  padding: 1rem 1.5rem 1.5rem;
  color: #716d82;
  text-align: center;
  font-size: 0.72rem;
}

@media (prefers-reduced-motion: no-preference) {
  .hero { animation: appear 700ms ease-out both; }
  @keyframes appear {
    from { opacity: 0; transform: translateY(0.75rem); }
  }
}