:root {
  color-scheme: light;
  --bg: #f6f7fb;
  --card: #ffffff;
  --text: #1f2440;
  --muted: #67708a;
  --primary: #2286ea;
  --primary-dark: #0b4fb3;
  --border: #e6e8f0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a {
  color: var(--primary-dark);
}

.page {
  margin: 0 auto;
  max-width: 880px;
  padding: 48px 20px;
}

.hero,
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 14px 40px rgba(6, 37, 90, 0.08);
}

.hero {
  padding: 36px;
}

.brand {
  align-items: center;
  display: flex;
  gap: 14px;
  margin-bottom: 24px;
}

.mark {
  align-items: center;
  background: var(--primary);
  border-radius: 16px;
  color: white;
  display: flex;
  font-size: 22px;
  font-weight: 800;
  height: 56px;
  justify-content: center;
  width: 56px;
}

h1,
h2 {
  line-height: 1.15;
  margin: 0;
}

h1 {
  font-size: clamp(34px, 7vw, 56px);
}

h2 {
  font-size: 24px;
  margin-top: 32px;
}

p,
li {
  color: var(--muted);
  font-size: 17px;
}

.lead {
  font-size: 19px;
  margin: 16px 0 0;
}

.grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  margin-top: 20px;
}

.card {
  padding: 24px;
}

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

.button {
  background: var(--primary);
  border-radius: 999px;
  color: white;
  display: inline-block;
  font-weight: 700;
  padding: 10px 18px;
  text-decoration: none;
}

.button.secondary {
  background: #eaf4ff;
  color: var(--primary-dark);
}

.updated {
  color: var(--muted);
  font-size: 14px;
  margin-top: 28px;
}

footer {
  color: var(--muted);
  font-size: 14px;
  margin-top: 32px;
  text-align: center;
}