:root {
  --bg: #07111f;
  --bg-2: #0d1b2e;
  --text: #f7fbff;
  --muted: #b9c7d8;
  --primary: #66e3ff;
  --primary-strong: #00c2ff;
  --accent: #9eff6b;
  --card: rgba(10, 18, 34, 0.72);
  --border: rgba(255, 255, 255, 0.12);
  --shadow: 0 20px 80px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

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

body {
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(0, 194, 255, 0.18), transparent 30%),
    radial-gradient(circle at bottom right, rgba(158, 255, 107, 0.12), transparent 25%),
    linear-gradient(135deg, var(--bg), var(--bg-2));
  overflow: hidden;
}

.grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at center, black 35%, transparent 90%);
  pointer-events: none;
}

.bg-orb {
  position: fixed;
  width: 32rem;
  height: 32rem;
  border-radius: 999px;
  filter: blur(50px);
  opacity: 0.45;
  pointer-events: none;
  animation: float 12s ease-in-out infinite;
}

.orb-1 {
  top: -8rem;
  left: -6rem;
  background: rgba(0, 194, 255, 0.32);
}

.orb-2 {
  right: -10rem;
  bottom: -10rem;
  background: rgba(158, 255, 107, 0.22);
  animation-delay: -4s;
}

.hero {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
  position: relative;
  z-index: 1;
}

.card {
  width: min(920px, 100%);
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 1px solid var(--border);
  border-radius: 28px;
  background: var(--card);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.9rem;
  margin-bottom: 1.25rem;
  border-radius: 999px;
  background: rgba(102, 227, 255, 0.12);
  border: 1px solid rgba(102, 227, 255, 0.25);
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 0.02em;
}

h1 {
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 5.4rem);
  line-height: 0.94;
  letter-spacing: -0.04em;
  max-width: 10ch;
}

.lead {
  margin: 1.5rem 0 0;
  max-width: 62ch;
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: 1.75;
  color: var(--muted);
}

.lead strong,
a {
  color: var(--text);
}

a {
  text-decoration-color: rgba(102, 227, 255, 0.7);
  text-underline-offset: 0.2em;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.25rem;
  padding: 0.85rem 1.3rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  color: #04111d;
  box-shadow: 0 10px 30px rgba(0, 194, 255, 0.28);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border);
  color: var(--text);
}

.features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.feature {
  padding: 1rem;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.feature-title {
  display: block;
  font-weight: 800;
  margin-bottom: 0.35rem;
  color: var(--accent);
}

.feature-text {
  color: var(--muted);
  line-height: 1.55;
}

.reveal {
  opacity: 0;
  transform: translateY(24px) scale(0.985);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  transition:
    opacity 900ms ease,
    transform 900ms cubic-bezier(0.2, 1, 0.2, 1);
}

@keyframes float {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(0, 24px, 0) scale(1.08); }
}

@media (max-width: 760px) {
  body {
    overflow-y: auto;
  }

  .features {
    grid-template-columns: 1fr;
  }

  h1 {
    max-width: none;
  }
}