:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --text: #0e121d;
  --muted: #585e6d;
  --border: #e4e7ec;
  --brand: #1d48e6;
  --brand-hover: #1639c4;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
}

a {
  color: var(--brand);
  text-decoration: underline;
}

a:hover {
  color: var(--brand-hover);
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 28px;
  box-shadow: 0 8px 24px rgba(14, 18, 29, 0.04);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
}

.brand:hover {
  color: var(--brand);
}

.meta {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 14px;
}

.meta span {
  display: block;
}

h1 {
  margin: 0 0 12px;
  font-size: 28px;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h2 {
  margin: 28px 0 12px;
  font-size: 18px;
  line-height: 1.35;
}

p {
  margin: 0 0 12px;
}

ul {
  margin: 0 0 12px;
  padding-left: 1.25rem;
}

li {
  margin-bottom: 6px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 14px;
}

.nav a {
  text-decoration: none;
}

.nav a:hover {
  text-decoration: underline;
}

@media (max-width: 640px) {
  .wrap {
    padding: 20px 14px 48px;
  }

  .card {
    padding: 24px 18px;
    border-radius: 12px;
  }

  h1 {
    font-size: 24px;
  }
}