html {
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", sans-serif;
  background: #f5f5f7;
  color: #1d1d1f;
}

a {
  color: #0066cc;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.page-shell {
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(180%) blur(20px);
  background: rgba(245, 245, 247, 0.82);
  border-bottom: 1px solid rgba(29, 29, 31, 0.08);
}

.topbar-inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  font-size: 17px;
  font-weight: 600;
  color: #1d1d1f;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 14px;
  color: #6e6e73;
}

.nav a {
  color: inherit;
}

.hero {
  max-width: 980px;
  margin: 0 auto;
  padding: 56px 20px 28px;
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #6e6e73;
}

.hero h1 {
  margin: 0;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.hero p {
  max-width: 720px;
  margin: 18px 0 0;
  font-size: 19px;
  line-height: 1.6;
  color: #424245;
}

.content-wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 20px 80px;
}

.card {
  background: #ffffff;
  border-radius: 28px;
  padding: 28px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

.meta {
  margin: 0 0 24px;
  font-size: 14px;
  color: #6e6e73;
}

.section {
  padding: 20px 0;
  border-top: 1px solid rgba(29, 29, 31, 0.08);
}

.section:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.section h2 {
  margin: 0 0 10px;
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.section h3 {
  margin: 18px 0 8px;
  font-size: 17px;
}

.section p,
.section li {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: #424245;
}

.section p + p,
.section ul,
.section ol {
  margin-top: 12px;
}

.section ul,
.section ol {
  padding-left: 20px;
}

.info-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.info-card {
  background: #fbfbfd;
  border: 1px solid rgba(29, 29, 31, 0.08);
  border-radius: 20px;
  padding: 18px;
}

.info-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

.footer {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 20px 48px;
  font-size: 13px;
  color: #6e6e73;
}

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

  .card {
    border-radius: 22px;
    padding: 22px;
  }

  .hero {
    padding-top: 40px;
  }
}