:root {
  color-scheme: dark;
  --bg: #050816;
  --bg-soft: rgba(14, 21, 42, 0.72);
  --card-border: rgba(255, 255, 255, 0.12);
  --text: #f8fafc;
  --muted: #cbd5e1;
  --eyebrow: #93c5fd;
  --accent-a: #60a5fa;
  --accent-b: #a78bfa;
  --shadow: 0 20px 80px rgba(2, 6, 23, 0.55);
}

* {
  box-sizing: border-box;
}

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

body {
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background:
    radial-gradient(circle at top left, rgba(96, 165, 250, 0.16), transparent 28%),
    radial-gradient(circle at 85% 20%, rgba(167, 139, 250, 0.18), transparent 24%),
    linear-gradient(180deg, #0b1020 0%, var(--bg) 45%, #020617 100%);
  color: var(--text);
}

.page-shell {
  position: relative;
  min-height: 100vh;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 24px;
}

.ambient {
  position: absolute;
  width: 28rem;
  height: 28rem;
  border-radius: 999px;
  filter: blur(80px);
  opacity: 0.45;
  pointer-events: none;
}

.ambient-left {
  top: -6rem;
  left: -8rem;
  background: rgba(59, 130, 246, 0.28);
}

.ambient-right {
  right: -6rem;
  bottom: -8rem;
  background: rgba(168, 85, 247, 0.24);
}

.hero-card {
  position: relative;
  z-index: 1;
  width: min(100%, 720px);
  padding: 40px;
  border: 1px solid var(--card-border);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.8), var(--bg-soft));
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 16px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--eyebrow);
}

h1 {
  margin: 0;
  max-width: 11ch;
  font-size: clamp(2.6rem, 6vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.lead {
  margin: 18px 0 0;
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 600;
  color: #e2e8f0;
}

.divider {
  width: 100%;
  height: 1px;
  margin: 28px 0 20px;
  background: linear-gradient(
    90deg,
    rgba(96, 165, 250, 0.75) 0%,
    rgba(255, 255, 255, 0.08) 100%
  );
}

.supporting-copy {
  margin: 0;
  max-width: 44ch;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--muted);
}

@media (max-width: 640px) {
  .page-shell {
    padding: 16px;
  }

  .hero-card {
    padding: 28px;
    border-radius: 24px;
  }

  .supporting-copy {
    font-size: 0.96rem;
  }
}