:root {
  color-scheme: dark;
  --ink: #f5f8f7;
  --muted: #aeb9b6;
  --mint: #59eea6;
  --glass: rgba(22, 38, 45, 0.72);
  --line: rgba(255, 255, 255, 0.14);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 18% 8%, rgba(89, 238, 166, 0.14), transparent 32rem),
    radial-gradient(circle at 82% 30%, rgba(80, 145, 255, 0.12), transparent 34rem),
    #071016;
  line-height: 1.6;
}

a { color: var(--mint); }

.shell {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
}

.brand {
  color: var(--ink);
  text-decoration: none;
  font-weight: 760;
  letter-spacing: -0.02em;
}

.nav-links { display: flex; gap: 22px; }
.nav-links a { color: var(--muted); text-decoration: none; }

.hero {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 60px;
  align-items: center;
  padding: 80px 0 96px;
}

.eyebrow {
  color: var(--mint);
  font-size: 0.82rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 10px 0 22px;
  font-size: clamp(3rem, 8vw, 6.6rem);
  line-height: 0.92;
  letter-spacing: -0.075em;
}

h2 { letter-spacing: -0.035em; }
.lede { color: var(--muted); font-size: 1.18rem; max-width: 35rem; }

.button {
  display: inline-block;
  margin-top: 16px;
  padding: 11px 18px;
  color: #06100c;
  background: var(--mint);
  border-radius: 999px;
  font-weight: 720;
  text-decoration: none;
}

.preview {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.42);
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding-bottom: 96px;
}

.card, .document {
  border: 1px solid var(--line);
  background: var(--glass);
  backdrop-filter: blur(24px);
  border-radius: 22px;
}

.card { padding: 24px; }
.card h2 { margin: 0 0 8px; font-size: 1.1rem; }
.card p { margin: 0; color: var(--muted); }

.document {
  max-width: 800px;
  margin: 64px auto 96px;
  padding: clamp(24px, 6vw, 64px);
}

.document h1 { font-size: clamp(2.8rem, 8vw, 5rem); }
.document h2 { margin-top: 38px; }
.document p, .document li { color: #c5cecb; }

footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.82rem;
}

@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; padding-top: 44px; gap: 36px; }
  .features { grid-template-columns: 1fr; }
  footer { flex-direction: column; }
}