:root {
  color-scheme: dark;
  --color-bg: #07111f;
  --color-bg-deep: #0b1628;
  --color-surface: rgba(12, 22, 37, 0.82);
  --color-surface-glow: rgba(96, 165, 250, 0.12);
  --color-border: rgba(148, 163, 184, 0.18);
  --color-text: #e2e8f0;
  --color-text-soft: #94a3b8;
  --color-accent: #60a5fa;
  --shadow-card: 0 24px 60px rgba(2, 6, 23, 0.45);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--color-text);
  background:
    radial-gradient(circle at top left, rgba(96, 165, 250, 0.18), transparent 24%),
    radial-gradient(circle at top right, rgba(45, 212, 191, 0.08), transparent 18%),
    linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-deep) 100%);
  background-attachment: fixed;
}

.splash-shell {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 24px;
}

.hero-card {
  width: min(680px, 100%);
  padding: clamp(32px, 6vw, 56px);
  border: 1px solid var(--color-border);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(17, 26, 40, 0.92), rgba(10, 18, 31, 0.96)),
    var(--color-surface);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: -20% auto auto -10%;
  width: 220px;
  height: 220px;
  border-radius: 999px;
  background: var(--color-surface-glow);
  filter: blur(10px);
}

.eyebrow,
h1,
.hero-copy {
  position: relative;
  z-index: 1;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  max-width: 11ch;
  font-size: clamp(2.5rem, 8vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.hero-copy {
  margin: 20px 0 0;
  max-width: 34rem;
  color: var(--color-text-soft);
  font-size: clamp(1rem, 2.2vw, 1.15rem);
  line-height: 1.65;
}

@media (max-width: 640px) {
  .hero-card {
    border-radius: 22px;
  }

  h1 {
    max-width: none;
  }
}