* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #121423;
  color: #f7f7fb;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans",
    "Noto Sans JP", "Segoe UI", sans-serif;
  line-height: 1.75;
}

a {
  color: #9aa7ff;
}

.page {
  width: min(960px, 100%);
  margin: 0 auto;
  padding: 40px 20px 64px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 48px;
}

.brand {
  color: #ffffff;
  font-size: 20px;
  font-weight: 700;
  text-decoration: none;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 14px;
}

.hero {
  padding: 48px 0 56px;
}

.eyebrow {
  margin: 0 0 12px;
  color: #9aa7ff;
  font-size: 14px;
  font-weight: 700;
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(36px, 7vw, 64px);
  line-height: 1.05;
  letter-spacing: 0;
}

h2 {
  margin: 40px 0 12px;
  font-size: 24px;
}

h3 {
  margin: 28px 0 8px;
  font-size: 18px;
}

p {
  margin: 0 0 16px;
  color: #d9dceb;
}

ul,
ol {
  margin: 0 0 20px;
  padding-left: 1.4em;
  color: #d9dceb;
}

li + li {
  margin-top: 6px;
}

.lead {
  width: min(720px, 100%);
  font-size: 18px;
}

.section {
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

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

.card {
  padding: 18px;
  background: #20243a;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
}

.card h3 {
  margin-top: 0;
}

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

.button {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  color: #ffffff;
  background: #6c63ff;
  border-radius: 8px;
  font-weight: 700;
  text-decoration: none;
}

.button.secondary {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.24);
}

.meta {
  color: #aeb4ce;
  font-size: 14px;
}

footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: #aeb4ce;
  font-size: 14px;
}

@media (max-width: 720px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    padding-top: 28px;
  }

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