:root {
  color-scheme: light;
  --ink: #102033;
  --muted: #516072;
  --surface: rgba(255, 255, 255, 0.9);
  --line: rgba(16, 32, 51, 0.1);
  --accent: #0f766e;
  --accent-soft: rgba(15, 118, 110, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top right, rgba(255, 243, 205, 0.8), transparent 24%),
    radial-gradient(circle at bottom left, rgba(194, 247, 236, 0.8), transparent 28%),
    linear-gradient(180deg, #f7f9fc 0%, #eef3f8 100%);
}

.shell {
  width: min(1080px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 40px 0 72px;
}

.hero,
.card {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--surface);
  box-shadow: 0 18px 48px rgba(19, 34, 53, 0.08);
  backdrop-filter: blur(10px);
}

.hero {
  padding: 36px;
}

.eyebrow {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
}

h1 {
  margin: 0;
  font-size: clamp(42px, 6vw, 76px);
  line-height: 0.98;
}

.lede {
  max-width: 760px;
  margin: 18px 0 0;
  font-size: 20px;
  line-height: 1.6;
  color: var(--muted);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
}

.button-solid {
  color: white;
  background: var(--accent);
}

.button-ghost {
  color: var(--ink);
  background: var(--accent-soft);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.card {
  padding: 24px;
}

h2 {
  margin: 0 0 12px;
  font-size: 24px;
}

p,
li {
  line-height: 1.65;
  color: var(--muted);
}

ul {
  margin: 0;
  padding-left: 20px;
}

.page {
  max-width: 820px;
}

.page .hero {
  padding: 32px;
}

.page .content {
  margin-top: 16px;
  padding: 28px 32px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--surface);
  box-shadow: 0 18px 48px rgba(19, 34, 53, 0.08);
}

.nav {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.nav a {
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
}

code {
  padding: 2px 6px;
  border-radius: 6px;
  background: rgba(16, 32, 51, 0.08);
}

@media (max-width: 840px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .shell {
    padding-top: 24px;
  }

  .hero,
  .card,
  .page .content {
    padding-left: 22px;
    padding-right: 22px;
  }

  h1 {
    font-size: 42px;
  }

  .lede {
    font-size: 18px;
  }
}