:root {
  color-scheme: light dark;
  font-family: 'Segoe UI', Roboto, sans-serif;
  background-color: #0f172a;
  color: #e2e8f0;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
    max-width: 1200px;
  margin: 0 auto;
}

a {
  color: inherit;
  text-decoration: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.main,
.landing {
  flex: 1;
}

.landing {
  display: grid;
  place-items: center;
  padding: 4rem 1rem;
}

.hero {
  text-align: center;
  max-width: 640px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
}

.hero p {
  margin: 1rem 0 2rem;
  color: #94a3b8;
}

.cta {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #22d3ee, #6366f1);
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 1rem 2rem -1rem rgba(94, 234, 212, 0.5);
}

.features {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-top: 3rem;
  width: min(100%, 1000px);
}

.features article {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(148, 163, 184, 0.1);
  padding: 1.5rem;
  border-radius: 1rem;
  backdrop-filter: blur(8px);
}

.footer {
  text-align: center;
  padding: 1rem;
  color: #64748b;
}