:root {
  --text: #1f2933;
  --muted: #5f6b76;
  --border: #e6e8eb;
  --background: #ffffff;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--background);
  color: var(--text);
  font-size: 16px;
  line-height: 1.65;
}

.container-narrow {
  width: min(100% - 32px, 820px);
  margin: 0 auto;
}

.site-header {
  padding: 40px 0 28px;
  border-bottom: 1px solid var(--border);
}

.brand-link {
  display: inline-block;
  text-decoration: none;
}

.brand-logo {
  display: block;
  max-width: 220px;
  height: auto;
}

.site-domain {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
}

.page-content {
  padding: 56px 0 72px;
}

h1 {
  margin: 0 0 24px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.18;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  margin: 34px 0 10px;
  font-size: 20px;
  line-height: 1.35;
  font-weight: 700;
}

p {
  margin: 0 0 18px;
}

a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
}

a:hover {
  color: #000;
}

.site-footer {
  padding: 34px 0 42px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
}

.footer-note {
  max-width: 760px;
  margin-bottom: 18px;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-bottom: 18px;
}

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

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

.copyright {
  margin-bottom: 0;
}

@media (max-width: 575.98px) {
  .site-header {
    padding-top: 28px;
  }

  .page-content {
    padding-top: 42px;
  }

  .brand-logo {
    max-width: 190px;
  }
}