:root {
  color-scheme: light;
  --background: #f7f8fb;
  --foreground: #121826;
  --muted: #5f6b7a;
  --line: #dfe5ee;
  --card: #ffffff;
  --accent: #2f66d0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  color: var(--foreground);
  background: radial-gradient(circle at top left, #edf3ff 0, transparent 34rem), var(--background);
}

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

.page {
  width: min(860px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0 72px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 44px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  text-decoration: none;
  color: var(--foreground);
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--accent);
  position: relative;
  box-shadow: 0 8px 22px rgb(47 102 208 / 22%);
}

.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  border-radius: 999px;
  background: #fff;
}

.brand-mark::before {
  top: 9px;
  height: 6px;
}

.brand-mark::after {
  top: 20px;
  height: 6px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 15px;
}

.nav a {
  text-decoration: none;
  color: var(--muted);
}

.hero {
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 14px;
  letter-spacing: .03em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(34px, 7vw, 56px);
  line-height: 1.04;
  letter-spacing: 0;
}

h2 {
  margin: 34px 0 10px;
  font-size: 22px;
  line-height: 1.25;
}

p,
li {
  font-size: 17px;
}

p {
  margin: 12px 0;
}

ul {
  margin: 10px 0 0;
  padding-left: 22px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 26px;
  box-shadow: 0 20px 60px rgb(18 24 38 / 6%);
}

.notice {
  color: var(--muted);
}

.site-footer {
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    margin-bottom: 34px;
  }

  .nav {
    flex-wrap: wrap;
    gap: 12px 16px;
  }

  .page {
    width: min(100% - 24px, 860px);
    padding-top: 32px;
  }

  .card {
    padding: 20px;
  }
}